U.S. patent application number 14/570756 was filed with the patent office on 2015-10-15 for flexible touch sensitive display device and control method thereof.
This patent application is currently assigned to LG ELECTRONICS INC.. The applicant listed for this patent is LG ELECTRONICS INC.. Invention is credited to Eunhyung CHO.
Application Number | 20150293620 14/570756 |
Document ID | / |
Family ID | 52117290 |
Filed Date | 2015-10-15 |
United States Patent
Application |
20150293620 |
Kind Code |
A1 |
CHO; Eunhyung |
October 15, 2015 |
FLEXIBLE TOUCH SENSITIVE DISPLAY DEVICE AND CONTROL METHOD
THEREOF
Abstract
A flexible display device including a flexible display unit; and
a controller configured to receive a first touch input at a first
position on the flexible display unit in a flat state, store, in a
memory, first position information of the first touch input that is
offset a first predetermined amount from the first position,
receive a second touch input at the first position on the flexible
display unit in a first bent state, and store, in the memory,
second position information of the second touch input that is
offset a second predetermined amount from the first position.
Further, the first predetermined amount of offset is greater than
the second predetermined amount of offset.
Inventors: |
CHO; Eunhyung; (Seoul,
KR) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
LG ELECTRONICS INC. |
Seoul |
|
KR |
|
|
Assignee: |
LG ELECTRONICS INC.
Seoul
KR
|
Family ID: |
52117290 |
Appl. No.: |
14/570756 |
Filed: |
December 15, 2014 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
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14314747 |
Jun 25, 2014 |
8928619 |
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14570756 |
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Current U.S.
Class: |
345/173 |
Current CPC
Class: |
G06F 2203/0381 20130101;
G06F 3/013 20130101; G06F 2203/04102 20130101; G06F 3/04883
20130101; G06F 3/0418 20130101; G06F 3/04186 20190501; G06F 1/1643
20130101; G06F 1/1652 20130101 |
International
Class: |
G06F 3/041 20060101
G06F003/041 |
Foreign Application Data
Date |
Code |
Application Number |
Apr 15, 2014 |
KR |
10-2014-0044700 |
Claims
1. A flexible display device comprising: a flexible display unit;
and a controller configured to: receive a first touch input at a
first position on the flexible display unit in a flat state, store,
in a memory, first position information of the first touch input
that is offset a first predetermined amount from the first
position, receive a second touch input at the first position on the
flexible display unit in a first bent state, and store, in the
memory, second position information of the second touch input that
is offset a second predetermined amount from the first position,
wherein the first predetermined amount of offset is greater than
the second predetermined amount of offset.
2. The device according to claim 1, wherein the controller is
further configured to: receive a third touch input at the first
position on the flexible display unit in a second bent state, and
store, in the memory, third position information of the third touch
input that is offset a third predetermined amount from the first
position.
3. The device according to claim 2, wherein the second bent state
is a state in which a bending angle of the flexible display unit is
greater than that in the first bent state based on an identical
bending axis.
4. The device according to claim 2, wherein the first and second
position information are offset in a direction from the first
position away from a bending axis of the flexible display
device.
5. The device according to claim 4, wherein the third position
information is offset in a direction from the first position toward
the bending axis.
6. The device according to claim 2, wherein the flexible display
unit is set to the first bent state when the bending angle is below
a threshold angle, and wherein the flexible display unit is set to
the second bent state when the bending angle exceeds the threshold
angle.
7. The device according to claim 1, wherein the controller is
further configured to store position information of the second
touch input that is not offset the second predetermined amount from
the first position, when a bending angle at the first position is
less than a threshold angle.
8. The device according to claim 7, wherein the threshold angle is
the bending angle of the flexible display unit when an angle
between eyes of a user looking at the first position and the
flexible display unit is substantially a right angle.
9. The device according to claim 1, wherein the first and second
predetermined amount of offsets increase as the first position is
farther away from where eyes of a user looking at the first
position and the flexible display unit are substantially
perpendicular to each other.
10. The device according to claim 1, wherein the controller is
further configured to apply the touch input to an object displayed
at a position corresponding to the stored first or second position
information of the touch input.
11. The device according to claim 1, wherein the offset of the
second position information is reduced when the touch input in
contact with the flexible display unit is dragged from the first
position toward a bending axis of the flexible display device.
12. A method of controlling a flexible display device, the method
comprising: receiving, via a controller of the flexible display
device, a first touch input at a first position on the flexible
display unit in a flat state; storing, in a memory, first position
information of the first touch input that is offset a first
predetermined amount from the first position; receiving, via the
controller, a second touch input at the first position on the
flexible display unit in a first bent state; and storing, in the
memory, second position information of the second touch input that
is offset a second predetermined amount from the first position,
wherein the first predetermined amount of offset is greater than
the second predetermined amount of offset.
13. The method according to claim 12, further comprising: receiving
a third touch input at the first position on the flexible display
unit in a second bent state; and storing, in the memory, third
position information of the third touch input that is offset a
third predetermined amount from the first position.
14. The method according to claim 13, wherein the second bent state
is a state in which a bending angle of the flexible display unit is
greater than that in the first bent state based on an identical
bending axis.
15. The method according to claim 13, wherein the first and second
position information are offset in a direction from the first
position away from a bending axis of the flexible display
device.
16. The method according to claim 15, wherein the third position
information is offset in a direction from the first position toward
the bending axis.
17. The method according to claim 13, wherein the flexible display
unit is set to the first bent state when the bending angle is below
a threshold angle, and wherein the flexible display unit is set to
the second bent state when the bending angle exceeds the threshold
angle.
18. The method according to claim 12, wherein the controller is
further configured to store position information of the second
touch input that is not offset the second predetermined amount from
the first position, when a bending angle at the first position is
less than a threshold angle.
19. The method according to claim 18, wherein the threshold angle
is the bending angle of the flexible display unit when an angle
between eyes of a user looking at the first position and the
flexible display unit is substantially a right angle.
20. The method according to claim 12, wherein the first and second
predetermined amount of offsets increase as the first position is
farther away from where eyes of a user looking at the first
position and the flexible display unit are substantially
perpendicular to each other.
Description
[0001] This application is a continuation of co-pending application
Ser. No. 14/314,747 filed on Jun. 25, 2014, which claims the
benefit of Korean Patent Application No. 10-2014-0044700 filed on
Apr. 15, 2014. The contents of all of these applications are hereby
incorporated by reference as fully set forth herein in their
entirety.
BACKGROUND OF THE INVENTION
[0002] 1. Field of the Invention
[0003] The present specification relates to a flexible display
device, and more particularly to a flexible display device, which
functions to correct position information regarding touch input,
and a control method thereof
[0004] 2. Discussion of the Related Art
[0005] A flexible display device may display the same resolution of
image even when folded or bent. Accordingly, a user may minimize
the volume of the flexible display device and achieve convenience
in carriage by rolling the flexible display device. In addition,
even in an unfolded or spread state thereof, the flexible display
device may advantageously provide the user with a screen having one
of various sizes and angles via bending thereof
[0006] However, in the case of the flexible display device, upon
detection of user touch input, there may occur a difference between
a position the user wishes to touch and a position where the touch
input is actually detected according to a bending angle of the
flexible display device. Therefore, the flexible display device may
need to correct position information regarding the detected touch
input.
SUMMARY OF THE INVENTION
[0007] Accordingly, the present specification is directed to a
flexible display device and a control method thereof that
substantially obviate one or more problems due to limitations and
disadvantages of the related art.
[0008] More particularly, an object of the present specification is
to provide a method for detecting touch input to a flexible display
device and correcting position information regarding the detected
touch input.
[0009] Additional advantages, objects, and features of the
specification will be set forth in part in the description which
follows and in part will become apparent to those having ordinary
skill in the art upon examination of the following or may be
learned from practice of the specification. The objectives and
other advantages of the specification may be realized and attained
by the structure particularly pointed out in the written
description and claims hereof as well as the appended drawings.
[0010] To achieve these objects and other advantages and in
accordance with one embodiment of the specification, as embodied
and broadly described herein, a flexible display device includes a
flexible display unit having a flat state and a bent state, a touch
sensor unit configured to sense touch input, a bending sensor unit
configured to sense a bending angle of the flexible display unit,
and a controller configured to control the flexible display unit,
the touch sensor unit, and the bending sensor unit, wherein the
controller corrects position information, regarding the touch input
detected at a first position of the flexible display unit, to a
second position when the flexible display unit is in the flat
state, wherein the controller corrects position information,
regarding the touch input detected at the first position, to a
third position when the flexible display unit is in a first bent
state, and wherein a distance between the first position and the
third position is less than a distance between the first position
and the second position.
[0011] In accordance with another embodiment of the present
specification, a control method of a flexible display device,
includes sensing a state of the flexible display device, detecting
touch input at a first position of the flexible display device,
correcting position information, regarding the touch input detected
at the first position, to a second position when the flexible
display device is in a flat state, and correcting position
information, regarding the touch input detected at the first
position, to a third position when the flexible display device is
in a first bent state, wherein a distance between the first
position and the third position is less than a distance between the
first position and the second position.
[0012] It is to be understood that both the foregoing general
description and the following detailed description of the present
specification are exemplary and explanatory and are intended to
provide further explanation of the specification as claimed.
BRIEF DESCRIPTION OF THE DRAWINGS
[0013] The accompanying drawings, which are included to provide a
further understanding of the specification and are incorporated in
and constitute a part of this application, illustrate embodiment(s)
of the specification and together with the description serve to
explain the principle of the specification. In the drawings:
[0014] FIG. 1 is a view showing first position correction with
respect to a touch point of a flexible display device according to
one embodiment of the present specification;
[0015] FIG. 2 is a view showing second position correction with
respect to a touch point of the flexible display device in a flat
state according to one embodiment of the present specification;
[0016] FIG. 3 is a view showing second position correction with
respect to a touch point of the flexible display device in a first
bent state according to one embodiment of the present
specification;
[0017] FIG. 4 is a view showing second position correction with
respect to a touch point of the flexible display device in a second
bent state according to one embodiment of the present
specification;
[0018] FIG. 5 is a view showing a method for correcting drag input
to the flexible display device according to one embodiment of the
present specification;
[0019] FIG. 6 is a view showing a method for determining a bent
state of a flexible display device according to one embodiment of
the present specification;
[0020] FIG. 7 is a view showing state setting on a per region basis
of the flexible display device according to one embodiment of the
present specification;
[0021] FIG. 8 is a block diagram of the flexible display device
according to one embodiment of the present specification; and
[0022] FIG. 9 is a flowchart showing operation of the flexible
display device according to one embodiment of the present
specification.
DETAILED DESCRIPTION OF THE INVENTION
[0023] Hereinafter, various embodiments will be described in detail
with reference to the attached drawings and illustrations thereof,
but it should be understood that the present specification is not
restricted or limited by the embodiments that will be described
hereinafter.
[0024] Although the terms used in the following description are
selected, as much as possible, from general terms that are widely
used at present while taking into consideration the functions
obtained in accordance with the present specification, these terms
may be replaced by other terms based on intensions of those skilled
in the art, customs, emergence of new technologies, or the like.
Also, in a particular case, terms that are arbitrarily selected by
the applicant of the present specification may be used. In this
case, the meanings of these terms may be described in corresponding
description parts of the specification. Accordingly, it should be
noted that the terms used herein should be construed based on
practical meanings thereof and the whole content of this
specification, rather than being simply construed based on names of
the terms.
[0025] In the following description, a flexible display device may
mean a display device whose shape is changeable by a user. That is,
examples of the flexible display device may include electronic
paper, a foldable display device, and a rollable display device.
Although the flexible display device will be described below by way
of example, the embodiments of the present specification are not
limited thereto.
[0026] FIG. 1 is a view showing first position correction with
respect to a touch point of a flexible display device according to
one embodiment of the present specification. The flexible display
device may change a position of a displayed object based on bending
thereof. In addition, the flexible display device may change, based
on the changed position of the object, a position where touch input
of selecting the corresponding object is detected.
[0027] In the upper of FIG. 1, the flexible display device 10 in a
flat state may display an image. The displayed image may include a
plurality of graphical objects. The flexible display device 10 may
display a first object 11, a second object 12, and a third object
13. When touch input is detected at a position where a first
sensing line 14 and the first object 11 cross each other, the
flexible display device 10 may detect the corresponding touch input
as touch input of selecting the first object 11. Likewise, when
touch input is detected at a position where a second sensing line
15 and the second object 12 cross each other, the flexible display
device 10 may detect the corresponding touch input as touch input
of selecting the second object 12. In addition, when touch input is
detected at a position where a third sensing line 16 and the third
object 13 cross each other, the flexible display device 10 may
detect the corresponding touch input as touch input of selecting
the third object 13.
[0028] In the middle of FIG. 1, the flexible display device 10 may
be bent. The flexible display device 10 in a bent state may display
the same image as the image provided by the flexible display device
10 in the flat state. Despite that the flexible display device 10
displays the same image, a user may recognize different images in
the flat state and the bent state of the flexible display device
10. This is because the displayed image must be bent by the
curvature of the flexible display device 10 upon bending of the
flexible display device 10. Accordingly, when the flexible display
device 10 is bent such that left and right sides thereof are rolled
inward as exemplarily shown in the middle of FIG. 1, a
left-and-right length of the displayed image may be changed. That
is, as the flexible display device 10 is bent, an angle between the
eyes of the user and the flexible display device 10 is changed,
which causes the user to recognize an image having a reduced
left-and-right length despite that the same image is displayed. For
example, in the middle of FIG. 1, a distance between the first
object 11 and the second object 12 and a distance between the
second object 12 and the third object 13 may be reduced as compared
to those in the upper of FIG. 1.
[0029] In a case in which distortion of the image occurs due to
bending of the flexible display device 10, the flexible display
device 10 may compensate for the distortion of the image by
changing a position of the displayed object. That is, as
exemplarily shown in the lower of FIG. 1, the flexible display
device 10 may move a display position of the first object 11
leftward and a display position of the third object 13 rightward,
thereby providing an image similar to that provided to the user in
the upper of FIG. 1.
[0030] As described above, in a case in which the position of the
displayed object is changed, the flexible display device 10 needs
to simultaneously change a detection position of touch input of
selecting the corresponding object. Otherwise the position of the
displayed object may differ from the detection position of the
touch input when the user visually checks the object whose position
is changed and selects the corresponding object using the touch
input. Accordingly, as exemplarily shown in the lower of FIG. 1,
the flexible display device 10 may detect touch input of selecting
the first object 11 by moving a position of the first sensing line
14 leftward or using another sensing line located at the left side
of the first sensing line 14. This is because the first object 11
is moved farther leftward than a displayed position thereof in a
flat state of the flexible display device 10. In addition, the
flexible display device 10 may not change a position of the second
sensing line 15 that is used to sense touch input to the second
object 12.
[0031] When the second object 12 is located on a bending axis, a
position of the second object 12 recognized by the user is not
changed. Accordingly, with regard to an object that is located on a
bending axis or that is present within a predetermined distance
from the bending axis, the flexible display device 10 may
continuously keep a sensing line for the corresponding object at
the same position in a flat state and in a bent state thereof. In
addition, the flexible display device 10 may detect touch input of
selecting the third object 13 by moving a position of the third
sensing line 16 rightward or using another sensing line located at
the right side of the third sensing line 16. This is because the
third object 13 is moved farther rightward than a displayed
position thereof in a flat state of the flexible display device
10.
[0032] As described above, the flexible display device 10 may
change a position of the displayed object based on whether or not
the flexible display device 10 is bent, and simultaneously may
change a detection position of touch input to the corresponding
object. In this way, the touch input of selecting the displayed
object may be accurately detected.
[0033] FIG. 2 is a view showing second position correction with
respect to a touch point of the flexible display device in a flat
state according to one embodiment of the present specification.
Differently from first position correction with respect to a touch
point based on bending of the flexible display device as described
above with reference to FIG. 1, second position correction is
correction to eliminate an error caused by a difference between a
touch point that the eyes of the user recognize and an actual touch
point. Accordingly, even when movement of a position of the
displayed object as mentioned above with regard to the first
position correction does not occur, the flexible display device may
implement second position correction.
[0034] When the user touches the flexible display device using a
finger, a displayed object may be hidden by the user's finger.
Although the user may look at the top of the finger that touches
the object, the bottom of the finger touches the object displayed
on the flexible display device. Thus, a touch position the user
recognizes and an actual touch position input to the flexible
display device may differ from each other. Therefore, second
position correction to correct this difference is necessary.
Although FIG. 2 illustrates left-and-right position variation of
touch input by way of example, position correction with respect to
a touch point according to the present specification may also be
applied to up-and-down position variation.
[0035] In FIG. 2, a user 20 may touch the flexible display device
10. The upper of FIG. 2 and the lower of FIG. 2 are respectively a
plan view and a side sectional view showing the flexible display
device 10 in a flat state and user input to the flexible display
device 10.
[0036] The user 20 may implement first touch input 21 to the
flexible display device 10. The first touch input 21 may be input
to a first position where the eyes of the user 20 and the flexible
display device 10 are substantially perpendicular to each other.
According to an embodiment, the first position may be set to a
position where an angle between the eyes of the user 20 and the
flexible display device 10 falls within a given range on the basis
of 90 degrees. The flexible display device 10 may detect a user's
finger 22 at the first position. Since the eyes of the user 20 and
the flexible display device 10 are substantially perpendicular to
each other at the first position, a position the user 20 wishes to
touch and an actual contact position between the finger 22 and the
flexible display device 10 may be equal to each other. Accordingly,
the flexible display device 10 may determine a position where the
first touch input 21 is detected as the first position without
executing position correction with respect to a touch point.
[0037] The user 20 may implement second touch input 23 to the
flexible display device 10. The second touch input 23 may be input
to a second position where the eyes of the user 20 and the flexible
display device 10 have a first angle. The flexible display device
10 may detect a user's finger 24 at the second position. Since the
eyes of the user 20 and the flexible display device 10 have the
first angle at the second position, a position the user 20 wishes
to touch and an actual contact position between the finger 24 and
the flexible display device 10 may differ from each other. As
exemplarily shown in FIG. 2, the flexible display device 10 may
come into contact with the bottom center of the user's finger 24 at
the second position. However, the user may recognize as if he/she
touches a third position where the eyes of the user 20 who looks at
the top center of the finger 24 and the flexible display device 10
cross each other. Here, a distance between the second position and
the third position may be defined as d1.
[0038] In this case, the flexible display device 10 may execute
second position correction with respect to a touch point. The
flexible display device 10 may correct position information,
regarding the second touch input 23 detected at the second
position, from the second position to the third position. In a case
in which the second position is in a first direction from the first
position, the flexible display device 10 may set the third position
to a position moved in the first direction from the second position
by the distance d1. The flexible display device 10 may determine
the distance d1 based on a distance between the first position and
the second position. The flexible display device 10 may determine
the distance dl in proportion to a distance between the first
position and the second position.
[0039] The user 20 may implement third touch input 25 to the
flexible display device 10. The third touch input 25 may be input
to a fourth position where the eyes of the user 20 and the flexible
display device 10 have a second angle. The flexible display device
10 may detect a user's finger 26 at the fourth position. Since the
eyes of the user 20 and the flexible display device 10 have the
second angle at the fourth position, a position the user 20 wishes
to touch and an actual contact position between the finger 26 and
the flexible display device 10 may differ from each other. As
exemplarily shown in FIG. 2, the flexible display device 10 may
come into contact with the bottom center of the user's finger 26 at
the fourth position. However, the user may recognize as if he/she
touches a fifth position where the eyes of the user 20 who looks at
the top center of the finger 26 and the flexible display device 10
cross each other. Here, a distance between the fourth position and
the fifth position may be defined as d2.
[0040] In this case, the flexible display device 10 may execute
second position correction with respect to a touch point. The
flexible display device 10 may correct position information,
regarding the third touch input 25 detected at the fourth position,
from the fourth position to the fifth position. In a case in which
the fourth position is in a second direction from the first
position, the flexible display device 10 may set the fifth position
to a position moved in the second direction from the fourth
position by the distance d2. The flexible display device 10 may
determine the distance d2 based on a distance between the first
position and the fourth position. The flexible display device 10
may determine the distance d2 in proportion to a distance between
the first position and the fourth position. As exemplarily shown, a
distance between the first position and the fourth position is
greater than a distance between the first position and the second
position, and therefore d2 may be set to a greater value than d1.
That is, the flexible display device 10 may increase a correction
distance based on position information regarding touch input with
increasing distance between a touch point and the first position
where the eyes of the user 20 and the flexible display device 10
are substantially perpendicular to each other.
[0041] FIG. 3 is a view showing second position correction with
respect to a touch point of the flexible display device in a first
bent state according to one embodiment of the present
specification. Second position correction is correction to
eliminate an error caused by a difference between a touch point
that the user's eyes recognize and an actual touch point. When the
user touches the flexible display device using a finger, a
displayed object may be hidden by the user's finger. Although the
user may look at the top of the finger that touches the object, the
bottom of the finger touches the object displayed on the flexible
display device. Thus, a touch position the user recognizes and an
actual touch position input to the flexible display device may
differ from each other. Therefore, second position correction to
correct this difference is necessary. Although FIG. 3 illustrates
left-and-right position variation of touch input by way of example,
position correction with respect to a touch point according to the
present specification may also be applied to up-and-down position
variation.
[0042] In FIG. 3, the user 20 may touch the flexible display device
10. The upper of FIG. 3 and the lower of FIG. 3 are respectively a
plan view and a side sectional view, showing the flexible display
device 10 in a first bent state and user input to the flexible
display device 10.
[0043] The user 20 may implement first touch input 31 to the
flexible display device 10. The first touch input 31 may be input
to a first position where the eyes of the user 20 and the flexible
display device 10 are substantially perpendicular to each other.
According to an embodiment, the first position may be set to a
position where an angle between the eyes of the user 20 and the
flexible display device 10 falls within a given range on the basis
of 90 degrees. In addition, the first position may be present on a
bending axis or within a given distance from the bending axis upon
bending of the flexible display device 10.
[0044] The flexible display device 10 may detect a user's finger 32
at the first position. Since the eyes of the user 20 and the
flexible display device 10 are substantially perpendicular to each
other at the first position, a position the user 20 wishes to touch
and an actual contact position between the finger 32 and the
flexible display device 10 may be equal to each other. Accordingly,
the flexible display device 10 may determine a position where the
first touch input 31 is detected as the first position without
executing position correction with respect to a touch point.
[0045] The user 20 may implement second touch input 33 to the
flexible display device 10. The second touch input 33 may be input
to a second position where the eyes of the user 20 and the flexible
display device 10 have a first angle. The flexible display device
10 may detect a user's finger 34 at the second position. Since the
eyes of the user 20 and the flexible display device 10 have the
first angle at the second position and the flexible display device
10 is bent, a position the user 20 wishes to touch and an actual
contact position between the finger 34 and the flexible display
device 10 may differ from each other. As exemplarily shown in FIG.
3, the flexible display device 10 may come into contact with the
bottom center of the user's finger 34 at the second position.
However, the user may recognize as if he/she touches a third
position where the eyes of the user 20 who looks at the top center
of the finger 34 and the flexible display device 10 cross each
other. Here, a distance between the second position and the third
position may be defined as d3.
[0046] Although FIG. 2 shows that the bottom center of the finger
comes into contact with the flexible display device 10, in the case
of FIG. 3, the flexible display device 10 is in a bent state and,
therefore, a contact position may not be the bottom center of the
finger. That is, in a case in which the second position is in a
first direction from a bending axis of the flexible display device
10, a portion of the finger biased in the first direction from the
bottom center of the finger may come into contact with the flexible
display device 10. Accordingly, d3 in the bent state may be defined
as a less value than dl in the flat state. That is, the flexible
display device 10 may set a correction distance in the first bent
state to be less than a correction distance in the flat state upon
implementing correction with respect to touch input of touching the
same position on a flexible display unit.
[0047] In this case, the flexible display device 10 may execute
second position correction with respect to a touch point. The
flexible display device 10 may correct position information,
regarding the second touch input 33 detected at the second
position, from the second position to the third position. In a case
in which the second position is in a first direction from the first
position, the flexible display device 10 may set the third position
to a position moved in the first direction from the second position
by the distance d3. The flexible display device 10 may determine
the distance d3 based on a distance between the first position and
the second position. The flexible display device 10 may determine
the distance d3 in proportion to a distance between the first
position and the second position.
[0048] The user 20 may implement third touch input 35 to the
flexible display device 10. The third touch input 35 may be input
to a fourth position where the eyes of the user 20 and the flexible
display device 10 have a second angle. The flexible display device
10 may detect a user's finger 36 at the fourth position. Since the
eyes of the user 20 and the flexible display device 10 have the
second angle at the fourth position and the flexible display device
10 is bent, a position the user 20 wishes to touch and an actual
contact position between the finger 36 and the flexible display
device 10 may differ from each other. As exemplarily shown in FIG.
3, the flexible display device 10 may come into contact with the
bottom center of the user's finger 36 at the fourth position.
However, the user may recognize as if he/she touches a fifth
position where the eyes of the user 20 who looks at the top center
of the finger 36 and the flexible display device 10 cross each
other. Here, a distance between the fourth position and the fifth
position may be defined as d4.
[0049] Although FIG. 2 shows that the bottom center of the finger
comes into contact with the flexible display device 10, in the case
of FIG. 3, the flexible display device 10 is in a bent state and,
therefore, a contact position may not be the bottom center of the
finger. That is, in a case in which the fourth position is in a
second direction from a bending axis of the flexible display device
10, a portion of the finger biased in the second direction from the
bottom center of the finger may come into contact with the flexible
display device 10. Accordingly, d4 in the bent state may be defined
as a less value than d2 in the flat state.
[0050] In this case, the flexible display device 10 may execute
second position correction with respect to a touch point. The
flexible display device 10 may correct position information,
regarding the third touch input 35 detected at the fourth position,
from the fourth position to the fifth position. In a case in which
the fourth position is in a second direction from the first
position, the flexible display device 10 may set the fifth position
to a position moved in the second direction from the fourth
position by the distance d4. The flexible display device 10 may
determine the distance d4 based on a distance between the first
position and the fourth position. The flexible display device 10
may determine the distance d4 in proportion to a distance between
the first position and the fourth position. As exemplarily shown, a
distance between the first position and the fourth position is
greater than a distance between the first position and the second
position, and therefore d4 may be set to a greater value than d3.
That is, the flexible display device 10 may increase a correction
distance based on position information regarding touch input with
increasing distance between a touch point and the first position
where the eyes of the user 20 and the flexible display device 10
are substantially perpendicular to each other.
[0051] FIG. 4 is a view showing second position correction with
respect to a touch point of the flexible display device in a second
bent state according to one embodiment of the present
specification. The second bent state of the flexible display device
may be defined as a state in which a bending angle of the flexible
display device is greater than that in the first bent state. Second
position correction is correction to eliminate an error caused by a
difference between a touch point that the user's eyes recognize and
an actual touch point. When the user touches the flexible display
device using a finger, a displayed object may be hidden by the
user's finger. Although the user may look at the top of the finger
that touches the object, the bottom of the finger touches the
object displayed on the flexible display device. Thus, a touch
position where the user recognizes and an actual touch position
input to the flexible display device may differ from each other.
Therefore, second position correction to correct this difference is
necessary. Although FIG. 4 illustrates left-and-right position
variation of touch input by way of example, position correction
with respect to a touch point according to the present
specification may also be applied to up-and-down position
variation.
[0052] In FIG. 4, the user 20 may touch the flexible display device
10. The upper of FIG. 4 and the lower of FIG. 4 are respectively a
plan view and a side sectional view, showing the flexible display
device 10 in a second bent state and user input to the flexible
display device 10.
[0053] The user 20 may implement first touch input 41 to the
flexible display device 10. The first touch input 41 may be input
to a first position where the eyes of the user 20 and the flexible
display device 10 are substantially perpendicular to each other.
According to an embodiment, the first position may be set to a
position where an angle between the eyes of the user 20 and the
flexible display device 10 falls within a given range on the basis
of 90 degrees. In addition, the first position may be present on a
bending axis or within a given distance from the bending axis upon
bending of the flexible display device 10.
[0054] The flexible display device 10 may detect a user's finger 42
at the first position. Since the eyes of the user 20 and the
flexible display device 10 are substantially perpendicular to each
other at the first position, a position the user 20 wishes to touch
and an actual contact position between the finger 42 and the
flexible display device 10 may be equal to each other. Accordingly,
the flexible display device 10 may determine a position where the
first touch input 41 is detected as the first position without
executing position correction with respect to a touch point.
[0055] The user 20 may implement second touch input 43 to the
flexible display device 10. The second touch input 43 may be input
to a second position where the eyes of the user 20 and the flexible
display device 10 have a first angle. The flexible display device
10 may detect a user's finger 44 at the second position. Since the
eyes of the user 20 and the flexible display device 10 have the
first angle at the second position and the flexible display device
10 is bent, a position the user 20 wishes to touch and an actual
contact position between the finger 44 and the flexible display
device 10 may differ from each other. As exemplarily shown in FIG.
4, the flexible display device 10 may come into contact with the
bottom center of the user's finger 44 at the second position.
However, the user may recognize as if he/she touches a third
position where the eyes of the user 20 who looks at the top center
of the finger 44 and the flexible display device 10 cross each
other. Here, a distance between the second position and the third
position may be defined as d5.
[0056] Although FIG. 2 shows that the bottom center of the finger
comes into contact with the flexible display device 10, in the case
of FIG. 4, the flexible display device 10 is in a bent state and,
therefore, a contact position may not be the bottom center of the
finger. That is, in a case in which the second position is in a
first direction from a bending axis of the flexible display device
10, a portion of the finger biased in the first direction from the
bottom center of the finger may come into contact with the flexible
display device 10. A bending angle of the flexible display device
10 in the second bent state may be greater than that in the first
bent state. Accordingly, in a case in which the second position is
in the first direction from a bending axis, the second position may
be located farther from a position the user 20 wishes to touch in
the first direction by a distance d5. Thus, a correction direction
in the second bent state may be defined as a direction opposite to
a correction direction in the flat state and in the first bent
state. That is, assuming that a correction direction in the flat
state and in the first bent state is a first direction, the
flexible display device 10 may set a correction direction in the
second bent state to a second direction opposite to the first
direction upon implementing correction with respect to a touch
input of touching the same position on a flexible display unit.
[0057] In this case, the flexible display device 10 may execute
second position correction with respect to a touch point. The
flexible display device 10 may correct position information,
regarding the second touch input 43 detected at the second
position, from the second position to the third position. In a case
in which the second position is in a first direction from the first
position, the flexible display device 10 may set the third position
to a position moved in the second direction opposite to the first
direction from the second position by the distance d5. The flexible
display device 10 may determine the distance d5 based on a distance
between the first position and the second position. The flexible
display device 10 may determine the distance d5 in proportion to a
distance between the first position and the second position.
[0058] The user 20 may implement third touch input 45 to the
flexible display device 10. The third touch input 45 may be input
to a fourth position where the eyes of the user 20 and the flexible
display device 10 have a second angle. The flexible display device
10 may detect a user's finger 46 at the fourth position. Since the
eyes of the user 20 and the flexible display device 10 have the
second angle at the fourth position and the flexible display device
10 is bent, a position the user 20 wishes to touch and an actual
contact position between the finger 46 and the flexible display
device 10 may differ from each other. As exemplarily shown in FIG.
4, the flexible display device 10 may come into contact with the
bottom center of the user's finger 46 at the fourth position.
However, the user may recognize as if he/she touches a fifth
position where the eyes of the user 20 who looks at the top center
of the finger 46 and the flexible display device 10 cross each
other. Here, a distance between the fourth position and the fifth
position may be defined as d6.
[0059] Although FIG. 2 shows that the bottom center of the finger
comes into contact with the flexible display device 10, in the case
of FIG. 3, the flexible display device 10 is in a bent state and,
therefore, a contact position may not be the bottom center of the
finger. That is, in a case in which the fourth position is in a
second direction from a bending axis of the flexible display device
10, a portion of the finger biased in the second direction from the
bottom center of the finger may come into contact with the flexible
display device 10. A bending angle of the flexible display device
10 in the second bent state may be greater than that in the first
bent state. Accordingly, in a case in which the second position is
in the second direction from a bending axis, the fourth position
may be located farther from a position the user 20 wishes to touch
in the second direction by a distance d6. Thus, a correction
direction in the second bent state may be defined as a direction
opposite to a correction direction in the flat state and in the
first bent state. That is, assuming that a correction direction in
the flat state and in the first bent state is a second direction,
the flexible display device 10 may set a correction direction in
the second bent state to a first direction opposite to the second
direction upon implementing correction with respect to touch input
of touching the same position on the flexible display unit.
[0060] In this case, the flexible display device 10 may execute
second position correction with respect to a touch point. The
flexible display device 10 may correct position information,
regarding the third touch input 45 detected at the fourth position,
from the fourth position to the fifth position. In a case in which
the fourth position is in a second direction from the first
position, the flexible display device 10 may set the fifth position
to a position moved in the first direction from the fourth position
by the distance d6. The flexible display device 10 may determine
the distance d6 based on a distance between the first position and
the fourth position. The flexible display device 10 may determine
the distance d4 in proportion to a distance between the first
position and the fourth position. As exemplarily shown, a distance
between the first position and the fourth position is greater than
a distance between the first position and the second position, and
therefore d6 may be set to a greater value than d5. That is, the
flexible display device 10 may increase a correction distance based
on position information regarding touch input with increasing
distance between a touch point and the first position where the
eyes of the user 20 and the flexible display device 10 are
substantially perpendicular to each other.
[0061] FIG. 5 is a view showing a method for correcting drag input
with respect to the flexible display device according to one
embodiment of the present specification. The flexible display
device 10 may correct position information regarding drag input.
The flexible display device 10 may change a correction distance of
position information as the position information regarding drag
input is changed by a user drag motion.
[0062] In the upper of FIG. 5, the user 20 may touch a first
position of the flexible display device 10 in a bent state using a
finger 51. The first position may be located in a first direction
from a bending axis of the flexible display device 10. The flexible
display device 10, as described above with reference to FIGS. 3 and
4, may correct position information regarding the touch input
detected at the first position from the first position to a second
position. Here, a distance between the first position and the
second position may be defined as d7. A correction direction may be
changed based on a bent state of the flexible display device 10. In
a case in which the flexible display device 10 is in a first bent
state, a correction direction may be the first direction from the
bending axis toward the first position. In a state in which the
flexible display device 10 is in a second bent state, a correction
direction may be a second direction opposite to the first
direction.
[0063] The flexible display device 10 may detect drag input by the
finger 51 detected at the first position. The finger 51 detected at
the first position may be continuously dragged to a position on the
bending axis of the flexible display device 10. The flexible
display device 10 may not implement position correction, as
described above with reference to FIGS. 3 and 4, with respect to
the position on the bending axis where a user's finger 52 touches.
That is, assuming that the position on the bending axis is a third
position, the flexible display device 10 may set position
information regarding drag input to the third position without
correction of a touch position with respect to the drag input
detected at the third position. Accordingly, a position correction
distance on the basis of the bending axis may be zero. The flexible
display device 10 may stepwise or continuously reduce the
correction distance with respect to the touch position from d7 to
zero while the touch input detected at the first position is
dragged to the third position. Thereby, the flexible display device
10 may implement accurate touch position correction with respect to
the continuously moving drag input.
[0064] In the lower of FIG. 5, the user 20 may touch a fourth
position of the flexible display device 10 in a bent state using a
finger 53. The fourth position may be located on the bending axis
of the flexible display device 10. The flexible display device 10,
as described above with reference to FIGS. 3 and 4, may directly
determine and use position information regarding the touch input
detected at the fourth position without correction. Accordingly, a
position correction distance on the basis of the bending axis may
be zero.
[0065] The flexible display device 10 may detect drag input by the
finger 53 detected at the fourth position. The finger 53 detected
at the fourth position may be continuously dragged to a fifth
position of the flexible display device 10. The flexible display
device 10 may implement position correction, as described above
with reference to FIGS. 3 and 4, with respect to a user's finger 54
on the fifth position. The flexible display device 10 may correct
position information regarding the drag input detected at the fifth
position from the fifth position to a sixth position. Here, a
distance between the fifth position and the sixth position may be
defined as d8. A correction direction may be changed based on a
bent state of the flexible display device 10. In a case in which
the flexible display device 10 is in a first bent state, a
correction direction may be a first direction from the bending axis
to the fifth position. In a case in which the flexible display
device 10 is in a second bent state, a correction direction may be
a second direction opposite to the first direction.
[0066] The flexible display device 10 may stepwise or continuously
increase the correction distance with respect to the touch position
from zero to d8 while the touch input detected at the fourth
position is dragged to the fifth position. Thereby, the flexible
display device 10 may implement accurate touch position correction
with respect to the continuously moving drag input.
[0067] FIG. 6 is a view showing a method for determining a bent
state of the flexible display device according to one embodiment of
the present specification. The flexible display device 10 may
determine a first bent state or a second bent state based on an
angle between the eyes of the user and the flexible display device
10.
[0068] The flexible display device 10 may be set to a first bent
state when a bending angle is below a threshold angle, and may be
set to a second bent state when a bending angle exceeds the
threshold angle. Here, the threshold angle may be a bending angle
of the flexible display device 10 in a case in which an angle
between the eyes of the user who looks at a position where touch
input occurs and the flexible display device 10 is within a first
angle range including a right angle. In FIG. 6, when the flexible
display device 10 detects touch input at a first position P1, an
angle between the eyes of the user and the flexible display device
10 may be a right angle at the first position P1. In addition,
since the flexible display device 10 is bendable, an angle between
the eyes of the user and the flexible display device 10 at a second
position P2 may be a right angle when touch input occurs at the
second position P2 in a bent state of the flexible display device
10. Likewise, when touch input occurs at a third position P3 in a
bent state of the flexible display device 10, an angle between the
eyes of the user and the flexible display device 10 at the third
position P3 may be a right angle. Accordingly, when the user's
touch input occurs at the second position P2 or the third position
P3, a bending angle of the flexible display device 10 in FIG. 6 may
be the threshold angle. As described above, in a case in which the
bending angle is equal to the threshold angle, the flexible display
device 10 may not implement correction of position information
regarding the touch input detected at the second position P2 or the
third position P3.
[0069] The flexible display device 10 may be set to a first bent
state when a bending angle thereof is below the threshold angle.
When the flexible display device 10 is set to the first bent state,
the flexible display device 10 may reduce a correction distance of
the position information regarding the touch input as the bending
angle is increased.
[0070] In a case in which the bending angle exceeds the threshold
angle, the flexible display device 10 may be set to a second bent
state. When the flexible display device 10 is set to the second
bent state, the flexible display device 10 may increase a
correction distance of the position information regarding the touch
input as the bending angle is increased.
[0071] That is, the flexible display device 10 may be set to the
first bent state when undergoing bending in a flat state thereof,
and may be set to the second bent state when the bending angle
thereof in the first bent state exceeds the threshold angle.
Likewise, the flexible display device 10 may be set to the first
bent state when the bending angle thereof in the second bent state
is reduced below the threshold angle, and may be set to a flat
state when the bending angle thereof in the first bent state is
close to zero.
[0072] FIG. 7 is a view showing state setting on a per region basis
of the flexible display device according to one embodiment of the
present specification. In a case in which bending of the flexible
display device 10 occurs, a state of the flexible display device 10
may be set on a per region basis. For example, as exemplarily shown
in FIG. 7, the flexible display device 10 may classify touch
sensitive regions into three kinds of regions.
[0073] The bent flexible display device 10 may set a first region
71 including a bending axis to a flat state. Thus, the flexible
display device 10 may implement touch position correction in the
first region 71 that is in a flat state as described above with
reference to FIG. 2. The bent flexible display device 10 may set
second regions 72 proximate to both sides of the first region 71 to
a first bent state. Thus, the flexible display device 10 may
implement touch position correction in the second regions 72 that
are in the first bent state as described above with reference to
FIG. 3. The bent flexible display device 10 may set third regions
73 located at edges thereof to a second bent state. Thus, the
flexible display device 10 may implement touch position correction
in the third regions 73 that are in the second bent state as
described above with reference to FIG. 4.
[0074] A boundary between the first and second regions 71 and 72
and a boundary between the second and third regions 72 and 73 may
be changed based on the bending angle of the flexible display
device 10 or the bending angle of each region.
[0075] In addition, according to an embodiment, the flexible
display device 10 may set touch sensitive regions to two kinds of
regions. Although not shown, the flexible display device 10 may set
a first region including a bending axis thereof to a flat state,
and the other regions proximate to the first region to a first bent
state or a second bent state. In addition, the flexible display
device 10 may set the first region including the bending axis to
the first bent state and the other regions proximate to the first
region to the second bent state.
[0076] The flexible display device 10 may implement accurate
position correction with respect to touch input on a per region
basis by applying different correction distances and different
correction directions of position information regarding the touch
input on a per region basis.
[0077] FIG. 8 is a block diagram of the flexible display device
according to one embodiment of the present specification. The
flexible display device may include a display unit 101, a touch
sensor unit 102, a bending sensor unit 103, and a controller 104.
In addition, according to an embodiment, as an optional component,
the flexible display device may further include a gaze detecting
unit configured to detect the eyes of the user.
[0078] The display unit 101 may display a virtual reality image. A
Head Mounted Display (HMD) may track movement of the user's head,
and the display unit 101 may change a region of the virtual reality
image to be displayed based on movement of the user's head. In this
way, the user may view a virtual reality image allotted in each
direction even if the user views a front direction, a lateral
direction, or a rear direction. As a result, the user may feel as
if the user is in a virtual space created by the virtual reality
image.
[0079] The display unit 101 may display an image including visual
information. The display unit 101 may include a flexible display
unit, a foldable display unit, a rollable display unit, or a
bendable display unit. The display unit 101, as described above
with reference to FIG. 1, may correct a displayed image based on
bending of the flexible display device, and display the corrected
image. In addition, the display unit 101 may display an image or
object corresponding to touch input whose position information is
corrected.
[0080] The touch sensor unit 102 may sense touch input to the
flexible display device. As described above, the touch sensor unit
102 may sense touch input, and transmit position information
regarding the touch input to the controller 104. As described above
with reference to FIGS. 2 to 4, position information regarding the
sensed touch input may differ from a position the user wishes to
touch, and the controller 104 may change position information
regarding the sensed touch input to a position the user wishes to
touch via correction of the position information. The touch sensor
unit 102 may include a pressure sensitive or capacitive touch
sensor.
[0081] The bending sensor unit 103 may sense a bending angle of the
flexible display device, and transmit the sensed bending angle to
the controller 104. The bending sensor unit 103 may sense the
bending angle of the flexible display device when the flexible
display device is bent about a single bending axis. In addition,
the bending sensor unit 103 may sense a bending angle per each
region included in the flexible display device when the flexible
display device is bent about a plurality of bending axes. The
bending sensor unit 103 may transmit the sensed bending angle to
the controller 104. The bending angle sensed by the bending sensor
unit 103 may be a factor in determining the state of the flexible
display device. The flexible display device may be set to at least
one state among the flat state, the first bent state, and the
second bent state based on the bending angle thereof. As described
above with reference to FIG. 7, the state of a single flexible
display device may be differently set on a per region basis.
[0082] The controller 104 may correct position information
regarding touch input based on the sensed results transmitted from
the touch sensor unit 102 and the bending sensor unit 103. As
described above with reference to FIGS. 2 to 4, the controller 104
may implement different touch position corrections with respect to
touch input detected at the same first position based on the
bending angle. In a case in which the flexible display unit is in a
flat state, the controller 104 may correct position information
regarding the touch input detected at the first position of the
flexible display unit from the first position to a second position.
In addition, in a case in which the flexible display unit is in a
first bent state, the controller 104 may correct position
information regarding the touch input detected at the first
position of the flexible display unit from the first position to a
third position. Here, a distance between the first position and the
third position may be less than a distance between the first
position and the second position. In addition, in a case in which
the flexible display unit is in a second bent state, the controller
104 may correct position information regarding the touch input
detected at the first position of the flexible display unit from
the first position to a fourth position. Here, the second bent
state may be defined as a state in which a bending angle of the
flexible display unit is greater than that in the first bent state
on the basis of the same bending axis. In addition, with regard to
correction of position information regarding touch input, the
second position and the third position may be located in a first
direction from the first position, and the fourth position may be
located in a second direction from the first position. Here, the
first direction is a given direction from the bending axis of the
flexible display unit to the first position, and the second
direction is a direction opposite to the first direction from the
first position to the bending axis. That is, the controller 104 may
set the first and second directions to opposite directions.
[0083] FIG. 8 is a block diagram in accordance with one embodiment.
In FIG. 8, separately shown blocks represent logically separated
elements of the flexible display device. Thus, the elements of the
flexible display device as described above may be mounted as one
chip or a plurality of chips according to design of the flexible
display device.
[0084] FIG. 9 is a flowchart showing operation of the flexible
display device according to one embodiment of the present
specification. The flexible display device may detect touch input
at a first position of the flexible display unit (S10). The
flexible display device may detect the touch input at the first
position using the touch sensor unit. The first position may be
defined as a position the user actually touches. The flexible
display device may judge whether or not the first position where
touch input is detected coincides with an accurate position the
user wishes to touch based on a state of the flexible display unit
as described below.
[0085] The flexible display device may detect a state of the
flexible display unit (S20). The flexible display device may detect
the state of the flexible display unit using the bending sensor
unit. The state of the flexible display unit may include a flat
state and a bent state. In addition, the bent state may include a
first bent state and a second bent state. The flexible display unit
may include one or more bending axes. Under the presence of the
plurality of bending axes, as described above with reference to
FIG. 7, the state of the flexible display unit may be set on a per
region basis.
[0086] The flexible display device may determine whether the
flexible display unit is in the flat state or in the first bent
state (S30). The controller of the flexible display device may
determine whether the flexible display unit is in the flat state or
in the first bent state based on the sensed results transmitted
from the bending sensor unit. Although not shown, the flexible
display device may additionally determine whether the flexible
display unit is in the second bent state. The flexible display
device may determine a correction direction based on the state of
the flexible display unit, and determine a correction distance
based on a distance between the first position and the bending
axis.
[0087] In a case in which the flexible display unit is in the flat
state, the flexible display device may correct position information
regarding the detected touch input from the first position to a
second position (S40). As described above with reference to FIG. 2,
the flexible display device may correct position information
regarding the touch input from the first position to the second
position located in a first direction. The first direction may be
defined as a direction toward the first position from the bending
axis of the flexible display unit. In addition, the flexible
display device may correct position information regarding touch
input from the first position to the second position, the second
position being spaced apart from the first position by a first
distance in the first direction. The flexible display device may
set the first distance in proportion to a distance from the bending
axis to the first position.
[0088] In a case in which the flexible display unit is in the first
bent state, the flexible display device may correct position
information regarding the detected touch input from the first
position to a third position (S50). As described above with
reference to FIG. 3, the flexible display device may correct
position information regarding the touch input from the first
position to the third position located in the first direction. The
first direction may be defined as a direction toward the first
position from the bending axis of the flexible display unit. In
addition, the flexible display device may correct position
information regarding the touch input from the first position to
the third position, the third position being spaced apart from the
first position by a second distance in the first direction. The
flexible display device may set the second distance in proportion
to a distance from the bending axis to the first position. In
addition, the flexible display device may set the second distance
to a less value than the first distance. The flexible display
device may increase a difference between the first distance and the
second distance as the bending angle in the first bent state is
increased. That is, the flexible display device may reduce the
second distance as the bending angle in the first bent state is
increased.
[0089] Although not shown, in a case in which the flexible display
unit is in the second bent state, the flexible display device may
correct position information regarding the touch input from the
first position to a fourth position. The flexible display device
may set a position located in a second direction from the first
position to the fourth position. Here, the second direction may be
set to a direction opposite to the first direction that is a
correction direction of the second position and the third
position.
[0090] As described above with reference to FIG. 4, the flexible
display device may correct position information regarding touch
input from the first position to a fourth position located in the
second direction. The second direction may be defined as a
direction from the first position toward the bending axis of the
flexible display unit. In addition, the flexible display device may
correct position information regarding touch input from the first
position to a fourth position that is spaced apart from the first
position in the second direction by a third distance. The flexible
display device may set the third distance in proportion to a
distance from the bending axis to the first position. The flexible
display device may increase the third distance as the bending angle
in the second bent state is increased.
[0091] The flexible display device may control the flexible display
unit based on the corrected position information (S60). The
flexible display device may implement a control instruction based
on the position information regarding touch input corrected based
on each state of the flexible display unit. For example, the
flexible display device may control an image or object displayed at
a position corresponding to the corrected position information. In
addition, the flexible display device may execute an application
displayed at a position corresponding to the corrected position
information. The flexible display device is not controlled based on
a position where touch input is actually detected, but based on a
position corresponding to the corrected position information
regarding touch input.
[0092] As described above, the flexible display device may
implement touch sensing that accurately reflects the will of the
user by correcting position information regarding touch input using
different correction directions and correction distances based on a
state of the flexible display unit. In this way, the flexible
display device may reduce touch sensing errors.
[0093] As is apparent from the above description, according to the
present specification, a flexible display device may differently
correct a position where touch input is detected based on whether
the flexible display device is in a flat state or in a bent
state.
[0094] In addition, according to the present specification, the
flexible display device may divide a bent state thereof into a
first bent state and a second bent state, such that the position
where touch input is detected is differently corrected based on
whether the flexible display device is in the first bent state or
in the second bent state.
[0095] In addition, according to the present specification, the
flexible display device may differently set a correction direction
of the position where touch input is detected based on a bending
angle thereof.
[0096] In addition, according to the present specification, the
flexible display device may accurately detect a position a user
wishes to touch via position correction regarding touch input.
[0097] In addition, according to the present specification, the
flexible display device may set a state thereof on a per touch
region basis, and correct position information regarding touch
input on a per touch region basis.
[0098] It will be apparent to those skilled in the art that various
modifications and variations can be made in the present
specification without departing from the spirit or scope of the
specification. Thus, it is intended that the present specification
covers the modifications and variations of this specification
provided they come within the scope of the appended claims and
their equivalents.
* * * * *