U.S. patent application number 15/351446 was filed with the patent office on 2018-04-05 for transparent display apparatus and method for driving transparent display panel thereof.
This patent application is currently assigned to Chunghwa Picture Tubes, LTD.. The applicant listed for this patent is Chunghwa Picture Tubes, LTD.. Invention is credited to Pei-Lin Hsieh, Hsiang-Tan Lin.
Application Number | 20180096643 15/351446 |
Document ID | / |
Family ID | 61757157 |
Filed Date | 2018-04-05 |
United States Patent
Application |
20180096643 |
Kind Code |
A1 |
Hsieh; Pei-Lin ; et
al. |
April 5, 2018 |
TRANSPARENT DISPLAY APPARATUS AND METHOD FOR DRIVING TRANSPARENT
DISPLAY PANEL THEREOF
Abstract
A transparent display apparatus and a method for driving a
transparent display panel thereof are provided. The transparent
display apparatus includes a first and second transparent display
panels, an image processor and a display driver. The image
processor receives an image signal having display data, a
transparency control signal having transparent values, a first and
second transparent parameters. The image processor calculates
according to the image signal, the transparency control signal, the
first and second transparent parameters to provide a first display
signal having first gray data and a second display signal
respectively having second gray data. The display driver drives the
first and second transparent display panels according to the first
and second gray data, so as to display a display image having all
gradations between a black state, a white state and a transparent
state through the coincided first and second transparent display
panels.
Inventors: |
Hsieh; Pei-Lin; (Taoyuan
City, TW) ; Lin; Hsiang-Tan; (Keelung City,
TW) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
Chunghwa Picture Tubes, LTD. |
Taoyuan City |
|
TW |
|
|
Assignee: |
Chunghwa Picture Tubes,
LTD.
Taoyuan City
TW
|
Family ID: |
61757157 |
Appl. No.: |
15/351446 |
Filed: |
November 15, 2016 |
Current U.S.
Class: |
1/1 |
Current CPC
Class: |
G06F 3/1423 20130101;
G09G 5/397 20130101; G09G 2300/023 20130101; G09G 2320/08 20130101;
G09G 2360/04 20130101; G09G 3/2011 20130101; G09G 2320/0276
20130101; G09G 3/36 20130101; G09G 2340/10 20130101; G06F 3/147
20130101 |
International
Class: |
G09G 3/20 20060101
G09G003/20; G09G 3/36 20060101 G09G003/36; G06F 3/147 20060101
G06F003/147; G06F 3/14 20060101 G06F003/14 |
Foreign Application Data
Date |
Code |
Application Number |
Sep 30, 2016 |
CN |
201610867416.2 |
Claims
1. A transparent display apparatus, comprising: a first transparent
display panel, having a first gradation within a section from a
transparent state to a white state; a second transparent display
panel, having a second gradation within a section from a black
state to the transparent state, and coincided with the first
transparent display panel; an image processor, receiving an image
signal having a plurality of display data, a transparency control
signal having a plurality of transparent values, a first
transparent parameter and a second transparent parameter,
performing calculation according to the image signal, the
transparency control signal and the first transparent parameter to
provide a first display signal having a plurality of first gray
data, and performing calculation according to the image signal, the
transparency control signal and the second transparent parameter to
provide a second display signal having a plurality of second gray
data, wherein the first transparent parameter is used for
representing a first gray value corresponding to the transparent
state of the first transparent display panel, and the second
transparent parameter is used for representing a second gray value
corresponding to the transparent state of the second transparent
display panel; and a display driver, coupled to the first
transparent display panel, the second transparent display panel and
the image processor, driving the first transparent display panel
according to the first gray data, and driving the second
transparent display panel according to the second gray data, so as
to display a display image having all gradations between the black
state, the white state and the transparent state through the
coincided first transparent display panel and the second
transparent display panel.
2. The transparent display apparatus as claimed in claim 1, wherein
the first gray value and the second gray value are respectively the
minimum gray value and the maximum gray value in a gray level range
of the image signal.
3. The transparent display apparatus as claimed in claim 1, wherein
a gray value of each of the first gray data is determined according
to a following equation:
GL1=.alpha..sub.1(VT).times.g1+.beta..sub.1(VT).times.RGB, wherein
GL1 is the gray value of each of the first gray data, VT is the
corresponding transparent value, g1 is the first transparent
parameter, RGB is a gray value of the corresponding display data,
.alpha..sub.1(VT) is a function for calculating transparency and is
proportional to the corresponding transparent value, and
.beta..sub.1(VT) is a function for calculating a degree of opacity
and is inversely proportional to the corresponding transparent
value.
4. The transparent display apparatus as claimed in claim 3, wherein
.alpha..sub.1(VT)=VT/G.sub.MAX, .beta..sub.1(VT)=(1-VT/G.sub.MAX),
G.sub.MAX is the maximum gray value in the gray level range of the
image signal.
5. The transparent display apparatus as claimed in claim 1, wherein
a gray value of each of the second gray data is determined
according to a following equation:
GL2=.alpha..sub.2(VT).times.g2+.beta..sub.2(VT).times.RGB, wherein
GL2 is the gray value of each of the second gray data, VT is the
corresponding transparent value, g2 is the second transparent
parameter, RGB is a gray value of the corresponding display data,
.alpha..sub.2(VT) is a function for calculating transparency and is
proportional to the corresponding transparent value, and
.beta..sub.2(VT) is a function for calculating a degree of opacity
and is inversely proportional to the corresponding transparent
value.
6. The transparent display apparatus as claimed in claim 5, wherein
.alpha..sub.2(VT)=VT/G.sub.MAX, .beta..sub.2(VT)=(1-VT/G.sub.MAX),
G.sub.MAX is the maximum gray value in the gray level range of the
image signal.
7. The transparent display apparatus as claimed in claim 1, further
comprising: a parameter acquiring circuit, coupled to the image
processor, and receiving a first transmittance characteristic of
the first transparent display panel and a second transmittance
characteristic of the second transparent display panel, so as to
provide the first transparent parameter and the second transparent
parameter.
8. A method for driving a transparent display panel, adapted to a
transparent display apparatus having a first transparent display
panel and a second transparent display panel coincided with each
other, the method for driving the transparent display panel
comprising: receiving an image signal having a plurality of display
data, a transparency control signal having a plurality of
transparent values, a first transparent parameter and a second
transparent parameter by an image processor, wherein the first
transparent parameter is used for representing a first gray value
corresponding to a transparent state of the first transparent
display panel, and the second transparent parameter is used for
representing a second gray value corresponding to the transparent
state of the second transparent display panel; performing
calculation by the image processor according to the image signal,
the transparency control signal and the first transparent parameter
to provide a first display signal having a plurality of first gray
data, so as to drive the first transparent display panel, wherein
the first transparent display panel has a first gradation within a
section from a transparent state to a white state; performing
calculation by the image processor according to the image signal,
the transparency control signal and the second transparent
parameter to provide a second display signal having a plurality of
second gray data, so as to drive the second transparent display
panel, wherein the second transparent display panel has a second
gradation within a section from a black state to the transparent
state; and displaying a display image having all gradations between
the black state, the white state and the transparent state through
the coincided first transparent display panel and the second
transparent display panel.
9. The method for driving the transparent display panel as claimed
in claim 8, wherein the first gray value and the second gray value
are respectively the minimum gray value and the maximum gray value
in a gray level range of the image signal.
10. The method for driving the transparent display panel as claimed
in claim 8, wherein a gray value of each of the first gray data is
determined according to a following equation:
GL1=.alpha..sub.1(VT).times.g1+.beta..sub.1(VT).times.RGB, wherein
GL1 is the gray value of each of the first gray data, VT is the
corresponding transparent value, g1 is the first transparent
parameter, RGB is a gray value of the corresponding display data,
.alpha..sub.1(VT) is a function for calculating transparency and is
proportional to the corresponding transparent value, and
.beta..sub.1(VT) is a function for calculating a degree of opacity
and is inversely proportional to the corresponding transparent
value.
11. The method for driving the transparent display panel as claimed
in claim 8, wherein a gray value of each of the second gray data is
determined according to a following equation:
GL2=.alpha..sub.2(VT).times.g2+.beta..sub.2(VT).times.RGB, wherein
GL2 is the gray value of each of the second gray data, VT is the
corresponding transparent value, g2 is the second transparent
parameter, RGB is a gray value of the corresponding display data,
.alpha..sub.2(VT) is a function for calculating transparency and is
proportional to the corresponding transparent value, and
.beta..sub.2(VT) is a function for calculating a degree of opacity
and is inversely proportional to the corresponding transparent
value.
Description
CROSS-REFERENCE TO RELATED APPLICATION
[0001] This application claims the priority benefit of China
application serial no. 201610867416.2, filed on Sep. 30, 2016. The
entirety of the above-mentioned patent application is hereby
incorporated by reference herein and made a part of this
specification.
BACKGROUND OF THE INVENTION
Field of the Invention
[0002] The invention relates to a display technique, and
particularly relates to a transparent display apparatus and a
method for driving a transparent display panel thereof.
Description of Related Art
[0003] Generally, liquid crystal displays (LCDs) are roughly
divided into three types, i.e. transmissive LCDs, reflective LCDs
and transflective LCDs. Along with increase of display
applications, transparent display panel is developed in recent
years. Since the transparent display panel has enough light
transmittance, a user may view a display content through the
transparent display panel, and may observe a background layout
behind the transparent display panel. Besides an original
transparent display function, the transparent display panel can
also be used for information display, which gradually draws
attention of the market.
[0004] The present transparent display technique may change gray
values of an image into transparency, and display the image through
the transparency of the transparent display panel. Taking a
transparent display panel adapted to a light box as an example, a
maximum value of gray value (i.e. a white state, which may
represent a white color) can be applied to present a maximum
transparency (i.e. a transparent state), though it may result in a
fact that the white state cannot be veritably presented. In another
transparent display panel, a minimum value of gray value (i.e. a
black state) can be applied to present the transparent state,
through it may result in a fact that the black state cannot be
veritably presented.
[0005] According to the above description, in the present display
technique, once the type of the transparent display panel is
determined, one of the black state and the white state cannot be
presented. Moreover, since the transparency of the transparent
display panel is determined by the gray values, adjustment of the
transparency of the transparent display panel is limited.
Therefore, a display effect and a user experience of the
transparent display panel are greatly influenced.
SUMMARY OF THE INVENTION
[0006] The invention is directed to a transparent display apparatus
and a method for driving a transparent display panel thereof, by
which the transparent display panel is adapted to display an image
of a black state, a white state and a transparent state, so as to
improve a display effect and a user experience of the transparent
display apparatus.
[0007] The invention provides a transparent display apparatus
including a first transparent display panel, a second transparent
display panel, an image processor and a display driver. The first
transparent display panel has a first gradation within a section
from a transparent state to a white state. The second transparent
display panel has a second gradation within a section from a black
state to the transparent state, and is coincided with the first
transparent display panel. The image processor receives an image
signal having a plurality of display data, a transparency control
signal having a plurality of transparent values, a first
transparent parameter and a second transparent parameter. The image
processor performs calculation according to the image signal, the
transparency control signal and the first transparent parameter to
provide a first display signal having a plurality of first gray
data, and performs calculation according to the image signal, the
transparency control signal and the second transparent parameter to
provide a second display signal having a plurality of second gray
data, wherein the first transparent parameter is used for
representing a first gray value corresponding to the transparent
state of the first transparent display panel, and the second
transparent parameter is used for representing a second gray value
corresponding to the transparent state of the second transparent
display panel. The display driver is coupled to the first
transparent display panel, the second transparent display panel and
the image processor. The display driver drives the first
transparent display panel according to the first gray data, and
drives the second transparent display panel according to the second
gray data, so as to display a display image having all gradations
between the black state, the white state and the transparent state
through the coincided first transparent display panel and the
second transparent display panel.
[0008] The invention provides a method for driving a transparent
display panel, which is adapted to a transparent display apparatus
having a first transparent display panel and a second transparent
display panel coincided with each other, and the method includes
following steps. An image signal having a plurality of display
data, a transparency control signal having a plurality of
transparent values, a first transparent parameter and a second
transparent parameter are received by an image processor, wherein
the first transparent parameter is used for representing a first
gray value corresponding to the transparent state of the first
transparent display panel, and the second transparent parameter is
used for representing a second gray value corresponding to the
transparent state of the second transparent display panel. The
image processor performs calculation according to the image signal,
the transparency control signal and the first transparent parameter
to provide a first display signal having a plurality of first gray
data, so as to drive the first transparent display panel, wherein
the first transparent display panel has a first gradation within a
section from a transparent state to a white state. The image
processor performs calculation according to the image signal, the
transparency control signal and the second transparent parameter to
provide a second display signal having a plurality of second gray
data, so as to drive the second transparent display panel, wherein
the second transparent display panel has a second gradation within
a section from a black state to the transparent state. A display
image having all gradations between the black state, the white
state and the transparent state is displayed through the coincided
first transparent display panel and the second transparent display
panel.
[0009] According to the above description, in the transparent
display apparatus and the method for driving the transparent
display panel of the invention, the first display signal and the
second display signal are correspondingly provided according to
transmittance characteristics of the first transparent display
panel and the second transparent display panel having different
gradations, so as to correspondingly drive the first transparent
display panel and the second transparent display panel. In this
way, the image of the black state, the white state and the
transparent state is displayed through the coincided first
transparent display panel and the second transparent display panel,
so as to improve the display effect and user experience of the
transparent display apparatus.
[0010] In order to make the aforementioned and other features and
advantages of the invention comprehensible, several exemplary
embodiments accompanied with figures are described in detail
below.
BRIEF DESCRIPTION OF THE DRAWINGS
[0011] The accompanying drawings are included to provide a further
understanding of the invention, and are incorporated in and
constitute a part of this specification. The drawings illustrate
embodiments of the invention and, together with the description,
serve to explain the principles of the invention.
[0012] FIG. 1 is a system schematic diagram of a transparent
display apparatus according to an embodiment of the invention.
[0013] FIG. 2 is an image schematic diagram of an image signal
according to an embodiment of the invention.
[0014] FIG. 3 is an image schematic diagram of a transparency
control signal according to an embodiment of the invention.
[0015] FIG. 4 is a schematic diagram of calculation of a first
display signal and a second display signal according to an
embodiment of the invention.
[0016] FIG. 5 is a flowchart illustrating a method for driving a
transparent display panel according to an embodiment of the
invention.
DESCRIPTION OF EMBODIMENTS
[0017] Reference will now be made in detail to the present
preferred embodiments of the invention, examples of which are
illustrated in the accompanying drawings. The provided embodiments
are only used for explaining the invention, and are not used for
limiting the scope of the invention.
[0018] FIG. 1 is a system schematic diagram of a transparent
display apparatus according to an embodiment of the invention.
Referring to FIG. 1, in the present embodiment, the transparent
display apparatus 100 includes an image processor 110, a display
driver 120, a first transparent display panel 130, a second
transparent display panel 140 and a parameter acquiring circuit
150. The first transparent display panel 130, for example, has a
first gradation within a section from a transparent state to a
white state, i.e. a transparent display panel with a gray value "0"
(i.e. the minimum gray value) corresponding to the transparent
state. The second transparent display panel 140, for example, has a
second gradation within a section from a black state to the
transparent state, i.e. a transparent display panel with a gray
value "255" (i.e. the minimum gray value) corresponding to the
transparent state. Moreover, the second transparent display panel
140 is coincided with the first transparent display panel 130.
[0019] The parameter acquiring circuit 150 is coupled to the image
processor 110, and receives a first transmittance characteristic
CHP1 of the first transparent display panel 130, and a second
transmittance characteristic CHP2 of the second transparent display
panel 140, so as to provide a first transparent parameter PT1 and a
second transparent parameter PT2 to the image processor 110,
wherein the first transmittance characteristic CHP1 and the second
transmittance characteristic CHP2 can be presented through a
look-up table, or represented in form of operators.
[0020] Moreover, the first transparent parameter PT1 is used for
representing a first gray value corresponding to the transparent
state of the first transparent display panel 130 (the firs gray
value herein is the gray value "0", i.e. the minimum gray value in
a gray level range 0-255 of an image signal SRGB), and the second
transparent parameter PT2 is used for representing a second gray
value corresponding to the transparent state of the second
transparent display panel 140 (the second gray value herein is the
gray value "255", i.e. the maximum gray value in the gray level
range 0-255 of the image signal SRGB).
[0021] The image processor 110 receives the image signal SRGB
having a plurality of display data DD and a transparency control
signal ST having a plurality of transparent values VT, and the
image processor 110 is coupled to the parameter acquiring circuit
150 to receive the first transparent parameter PT1 and the second
transparent parameter PT2.
[0022] Then, the image processor 110 performs calculation according
to the image signal SRGB, the transparency control signal ST and
the first transparent parameter PT1 to provide a first display
signal SDX1 having a plurality of first gray data GD1, and the
image processor 110 performs calculation according to the image
signal SRGB, the transparency control signal ST and the second
transparent parameter PT2 to provide a second display signal SDX2
having a plurality of second gray data GD2.
[0023] Each of the transparent values VT is, for example, a numeric
value of one byte (i.e. a decimal value of 0-255). Each of the
transparent values VT is used for representing whether a
corresponding pixel on the first transparent display panel 130 and
the second transparent display panel 140 presents the transparent
state, i.e. the transparency control signal ST is used for deciding
transparent areas (i.e. to display the transparent state) and
non-transparent areas (i.e. to display a brightness other than the
transparent state) on the first transparent display panel 130 and
the second transparent display panel 140, and the transparency
control signal ST can be determined by the user or determined
through calculation based on the image signal SRGB and an
algorithm.
[0024] The display driver 120 is coupled to the image processor
110, the first transparent display panel 130 and the second
transparent display panel 140 to receive the first display signal
SDX1 and the second display signal SDX2. The display driver 120
drives the first transparent display panel 130 according to the
first gray data GD1 of the first display signal SDX1 to display a
display image having the transparent state and the white state. The
display driver 120 drives the second transparent display panel 140
according to the second gray data GD2 of the second display signal
SDX2 to display a display image having the black state and the
transparent state. Due to the complementary characteristic of the
first transparent display panel 130 and the second transparent
display panel 140, the coincided first transparent display panel
130 and the second transparent display panel 140 may display a
display image having all gradations between the black state, the
white state and the transparent state.
[0025] FIG. 2 is an image schematic diagram of an image signal
according to an embodiment of the invention. FIG. 3 is an image
schematic diagram of a transparency control signal according to an
embodiment of the invention. FIG. 4 is a schematic diagram of
calculation of a first display signal and a second display signal
according to an embodiment of the invention. Referring to FIG. 1 to
FIG. 4, in the present embodiment, a foreground (for example, a
black figure 220, a white figure 240) is set to a non-transparent
state, as shown by a region 310, and the transparent value VT
corresponding to each of the pixels in the region 310 is, for
example, "0". Moreover, a background (i.e. a black background 210,
a white background 230) is set to the transparent state, as shown
by a region 320, and the transparent value VT corresponding to each
of the pixels in the region 320 is, for example, "255".
[0026] According to the above description, the black figure 220 and
the white figure 240 have the non-transparent state, so that the
gray values of the corresponding first gray data GD1 and the second
gray data GD2 can be set to the gray value of the corresponding
display data DD; the black background 210 and the white background
230 have the transparent state, the corresponding first gray data
GD1 is set to the gray value "0", and the corresponding second gray
data GD2 is set to the gray value "255". In other words, the lower
the transparency of the pixel is, the more the gray values of the
corresponding first gray data GD1 and the second gray data GD2 are
close to the gray value of the corresponding display data DD; and
the higher the transparency of the pixel is, the more the
corresponding first gray data GD1 is close to the gray value "0",
and the more the corresponding second gray data GD2 is close to the
gray value "255".
[0027] Deduced according to the above conclusion, the gray value of
each of the first gray data GD1 can be determined according to an
equation GL1=.alpha..sub.1(VT).times.g1+.beta..sub.1(VT).times.RGB,
where GL1 is the gray value of each of the first gray data GD1, VT
is the corresponding transparent value, g1 is the first transparent
parameter PT1, RGB is the gray value of the corresponding display
data DD, .alpha..sub.1(VT) is a function for calculating
transparency and is proportional to the corresponding transparent
value VT, and .beta..sub.1(VT) is a function for calculating a
degree of opacity and is inversely proportional to the
corresponding transparent value VT. Moreover, the gray value of
each of the second gray data GD2 can be determined according to an
equation GL2=.alpha..sub.2(VT).times.g2+.beta..sub.2(VT).times.RGB,
where GL2 is the gray value of each of the second gray data GD2, VT
is the corresponding transparent value, g2 is the second
transparent parameter PT2, RGB is the gray value of the
corresponding display data DD, .alpha..sub.2(VT) is a function for
calculating transparency and is proportional to the corresponding
transparent value VT, and .beta..sub.2(VT) is a function for
calculating a degree of opacity and is inversely proportional to
the corresponding transparent value VT.
[0028] For example, .alpha..sub.1(VT)=VT/G.sub.MAX,
.beta..sub.1(VT)=(1-VT/G.sub.MAX), .alpha..sub.2(VT)=VT/G.sub.MAX,
.beta..sub.2(VT)=(1-VT/G.sub.MAX), G.sub.MAX is the maximum gray
value in the gray level range 0-255 of the image signal SRGB (i.e.
the gray value "255").
[0029] Referring to FIG. 4, in the present embodiment, the image
signal SRGB, the transparency control signal ST, the first display
signal SDX1 and the second display signal SDX2 are, for example,
respectively implemented by a 5.times.5 array, wherein the values
in the grids of the image signal SRGB represent gray values of each
of the pixels, the values in the grids of the transparency control
signal ST represent transparent values corresponding to each of the
pixels, the values in the grids of the first display signal SDX1
represent gray values of each of the first gray data GD1, and the
values in the grids of the second display signal SDX2 represent
gray values of each of the second gray data GD2.
[0030] The values on an upper left-lower right diagonal of each
array are taken as an example to describe operations of the
equations of the present embodiment. When the gray value of the
display data DD is "0" and the corresponding transparent value VT
is "0", GL1=(0/255).times.0+(1-0/255).times.0=0, and
GL2=(0/255).times.255+(1-0/255).times.0=0; and when the gray value
of the display data DD is "64" and the corresponding transparent
value VT is "64", GL1=(64/255).times.0+(1-64/255).times.64=47.94
(rounded to an integer of 48), and
GL2=(64/255).times.255+(1-64/255).times.64=111.93 (rounded to an
integer of 112). Due to increase of the transparent value VT, the
gray value GL1 approaches to the gray value "0" to improve the
transparency of the pixel in the first transparent display panel
130, and the gray value GL2 approaches to the gray value "255" to
improve the transparency of the pixel in the second transparent
display panel 140.
[0031] Similarly, when the gray value of the display data DD is
"128" and the corresponding transparent value VT is "128",
GL1=(128/255).times.0+(1-128/255).times.128=63.75 (rounded to an
integer of 64), and
GL2=(128/255).times.255+(1-128/255).times.128=191.75 (rounded to an
integer of 192). When the gray value of the display data DD is
"192" and the corresponding transparent value VT is "192",
GL1=(192/255).times.0+(1-192/255).times.192=47.44 (rounded to an
integer of 47), and
GL2=(192/255).times.255+(1-192/255).times.192=239.44 (rounded to an
integer of 239). When the gray value of the display data DD is
"255" and the corresponding transparent value VT is "255",
GL1=(255/255).times.0+(1-255/255).times.255=0, and
GL2=(255/255).times.255+(1-255/255).times.255=255.
[0032] FIG. 5 is a flowchart illustrating a method for driving a
transparent display panel according to an embodiment of the
invention. Referring to FIG. 5, in the present embodiment, the
method for driving the transparent display panel is adapted to a
transparent display apparatus having a first transparent display
panel and a second transparent display panel coincided with each
other, and the method includes following steps. In step S510, an
image signal having a plurality of display data, a transparency
control signal having a plurality of transparent values, a first
transparent parameter and a second transparent parameter are
received by an image processor, wherein the first transparent
parameter is used for representing a first gray value corresponding
to the transparent state of the first transparent display panel,
and the second transparent parameter is used for representing a
second gray value corresponding to the transparent state of the
second transparent display panel.
[0033] In step S520, the image processor performs calculation
according to the image signal, the transparency control signal and
the first transparent parameter to provide a first display signal
having a plurality of first gray data, so as to drive the first
transparent display panel, wherein the first transparent display
panel has a first gradation within a section from a transparent
state to a white state. In step S530, the image processor performs
calculation according to the image signal, the transparency control
signal and the second transparent parameter to provide a second
display signal having a plurality of second gray data, so as to
drive the second transparent display panel, wherein the second
transparent display panel has a second gradation within a section
from a black state to the transparent state.
[0034] In step S540, a display image having all gradations between
the black state, the white state and the transparent state is
displayed through the coincided first transparent display panel and
the second transparent display panel. The sequence of the steps
S510, S520, S530 and S540 is only an example, and the invention is
not limited thereto. Moreover, details of the steps S510, S520,
S530 and S540 may refer to related description of the embodiments
of FIG. 1 to FIG. 4, which are not repeated.
[0035] In summary, in the transparent display apparatus and the
method for driving the transparent display panel of the invention,
the first display signal and the second display signal are
correspondingly provided according to transmittance characteristics
of the first transparent display panel and the second transparent
display panel having different gradations, so as to correspondingly
drive the first transparent display panel and the second
transparent display panel. In this way, the image of the black
state, the white state and the transparent state is displayed
through the coincided first transparent display panel and the
second transparent display panel, so as to improve the display
effect and user experience of the transparent display
apparatus.
[0036] It will be apparent to those skilled in the art that various
modifications and variations can be made to the structure of the
invention without departing from the scope or spirit of the
invention. In view of the foregoing, it is intended that the
invention cover modifications and variations of this invention
provided they fall within the scope of the following claims and
their equivalents.
* * * * *