U.S. patent application number 14/703205 was filed with the patent office on 2015-08-20 for display apparatus.
The applicant listed for this patent is SAMSUNG DISPLAY CO., LTD.. Invention is credited to Kuk-Hwan AHN, Chongchul CHAI, Heendol KIM, Ji-Sun KIM, Jai-Hyun KOH, Yeong-Keun KWON, BONGHYUN YOU.
Application Number | 20150235614 14/703205 |
Document ID | / |
Family ID | 47743040 |
Filed Date | 2015-08-20 |
United States Patent
Application |
20150235614 |
Kind Code |
A1 |
KIM; Ji-Sun ; et
al. |
August 20, 2015 |
DISPLAY APPARATUS
Abstract
A display apparatus includes a backlight assembly, a driving
circuit part, and a display panel. The backlight assembly emits
light. The driving circuit part receives an image signal, converts
the image signal into image data, and generates a driving signal
based on the image data. The display panel includes at least one
pixel in which a plurality of sub-pixels is arranged in a two row
by four column array, wherein the panel receives the light to
display an image in response to the driving signal, wherein two
sub-pixels of the sub-pixels arranged in a first row of the array
each comprise a white color filter and two sub-pixels of the
sub-pixels arranged in a second row of the array each comprise a
white color filter.
Inventors: |
KIM; Ji-Sun; (Seoul, KR)
; KOH; Jai-Hyun; (Seoul, KR) ; KWON;
Yeong-Keun; (Gyeonggi-do, KR) ; KIM; Heendol;
(Gyeonggi-do, KR) ; AHN; Kuk-Hwan; (Gyeonggi-do,
KR) ; YOU; BONGHYUN; (Gyeonggi-do, KR) ; CHAI;
Chongchul; (Seoul, KR) |
|
Applicant: |
Name |
City |
State |
Country |
Type |
SAMSUNG DISPLAY CO., LTD. |
YONGIN-CITY |
|
KR |
|
|
Family ID: |
47743040 |
Appl. No.: |
14/703205 |
Filed: |
May 4, 2015 |
Related U.S. Patent Documents
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Application
Number |
Filing Date |
Patent Number |
|
|
13523135 |
Jun 14, 2012 |
9047827 |
|
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14703205 |
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Current U.S.
Class: |
345/205 ;
345/102 |
Current CPC
Class: |
G09G 3/3648 20130101;
G09G 3/3413 20130101; G09G 3/2003 20130101; G09G 3/3614 20130101;
G09G 3/3611 20130101; G09G 5/10 20130101; G09G 2320/0247 20130101;
G09G 3/3607 20130101; G02F 1/133621 20130101; G02F 1/133514
20130101; G09G 3/3426 20130101; G09G 5/02 20130101; G09G 2310/0235
20130101; G09G 2300/0452 20130101 |
International
Class: |
G09G 5/02 20060101
G09G005/02; G09G 5/10 20060101 G09G005/10; G09G 3/36 20060101
G09G003/36 |
Foreign Application Data
Date |
Code |
Application Number |
Aug 31, 2011 |
KR |
1020110087890 |
Claims
1. A display apparatus, comprising: a backlight assembly emitting
light; a driving circuit part receiving an image signal, converting
the image signal into image data, and generating a driving signal
based on the image data; and a display panel including at least one
pixel in which a plurality of sub-pixels is arranged in a two row
by four column array, wherein the display panel receives the light
to display an image in response to the driving signal, wherein two
sub-pixels of the sub-pixels arranged in a first row of the array
each comprise a white color filter and two sub-pixels of the
sub-pixels arranged in a second row of the array each comprise a
white color filter; wherein four sub-pixels arranged in first and
second columns of the array are a first sub-pixel group, four
sub-pixels arranged in third and fourth columns of the array are a
second sub-pixel group, two sub-pixels of the first sub-pixel group
each comprise one of the white color filters, one of the remaining
two sub-pixels of the first sub-pixel group comprises a color
filter having a first color, the other one of the remaining two
sub-pixels of the first sub-pixel group comprises a color filter
having a second color different from the first color, two
sub-pixels of the second sub-pixel group each comprise one the
white color filters, one of the remaining two sub-pixels of the
second sub-pixel group comprises a color filter having a third
color different from the first and second colors, and the other one
of the remaining two sub-pixels of the second sub-pixel group
comprises a color filter having a fourth color different from the
first, second, and third colors; wherein the two sub-pixels
including the white color filters of the first sub-pixel group are
arranged in the same column and the two sub-pixels including the
white color filters of the second sub-pixel group are arranged in
the same column.
2. A display apparatus, comprising: a backlight assembly emitting
light; a driving circuit part receiving an image signal, converting
the image signal into image data, and generating a driving signal
based on the image data; and a display panel including at least one
pixel in which a plurality of sub-pixels is arranged in a two row
by three column array, wherein the display panel receives the light
to display an image in response to the driving signal, wherein two
sub-pixels of the sub-pixels each comprise a white color filter and
four sub-pixels of the sub-pixels comprise color filters having
different colors from each other.
3. The display apparatus of claim 2, wherein the pixel is provided
in a plural number on the display panel, the pixels are arranged in
an N row by M column array, wherein each of N and M is a natural
number equal to or larger than 2, and wherein the pixels arranged
in a K-th column of the pixels arranged in the N row by M column
array comprise the same color filter arrangement, and K is a
natural number equal to or smaller than M.
4. The display apparatus of claim 3, wherein the pixels arranged in
a (K-1)th column of the pixels arranged in the N row by M column
array comprise the same color filter arrangement.
5. The display apparatus of claim 4, wherein the two sub-pixels
each including the white color filter are arranged in a second
column of the two row by three column array in each of the pixels
arranged in the K-th column and the (K-1)th column.
6. The display apparatus of claim 5, wherein the color filters
arranged in a first row of the two row by three column array of
each of the pixels arranged in the (K-1)th column are arranged in
the same manner as the color filters arranged in a second row of
the two row by three column array of each of the pixels arranged in
the K-th column, and the color filters arranged in the second row
of the two row by three column array of each of the pixels arranged
in the (K-1)th column are arranged in the same manner as the color
filters arranged in the first row of the two row by three column
array of each of the pixels arranged in the K-th column.
7. The display apparatus of claim 4, wherein one of the two
sub-pixels including the white color filter of each of the pixels
arranged in the K-th column is arranged in a first row and a first
column of the two row by three column array, and the remaining one
of the two sub-pixels including the white color filter of each of
the pixels arranged in the K-th column is arranged in the first row
and a third column of the two row by three column array or in a
second row and the third column of the two row by three column
array.
8. The display apparatus of claim 7, wherein the color filters
arranged in the first row and a second column and in the first row
and the third column of the two row by three column array of each
of the pixels arranged in the (K-1)th column are the same as the
color filters arranged in the second row and the first column and
in the second row and the second column of the two row by three
column array of each of the pixels arranged in the K-th column, and
the color filters arranged in the second row and the first column
and in the second row and the second column of the two row by three
column array of each of the pixels arranged in the (K-1)th column
are the same as the color filters arranged in the first row and the
second column and in the first row and the third column of the two
row by three column array of each of the pixels arranged in the
K-th column.
Description
CROSS-REFERENCE TO RELATED APPLICATIONS
[0001] This application is a divisional of U.S. patent application
Ser. No. 13/523,135 filed on Jun. 14, 2012, which claims priority
under 35 U.S.C. .sctn.119 to Korean Patent Application
10-2011-0087890 filed on Aug. 31, 2011, the disclosures of which
are incorporated by reference herein in their entireties.
BACKGROUND
[0002] 1. Technical Field
[0003] The present invention relates to a display apparatus. More
particularly, the present invention relates to a display apparatus
with improved display quality.
[0004] 2. Discussion of the Related Art
[0005] In general, a display apparatus includes a display panel
through which images are viewed. The display panel may include a
matrix of pixels each including three sub-pixels. The three
sub-pixels may include a red color filter, a green color filter,
and a blue color filter that form a corresponding color when
brightened. Each sub-pixel is driven by a transistor. The display
apparatus controls the brightness in each sub-pixel according to a
charge stored in a capacitor in each sub-pixel which controls
driving of the transistor.
[0006] In an effort to improve color reproducibility, that is, how
closely the color on the display panel matches the color of the
real thing; different types of pixel structures have been
suggested. However, when using sub-pixel configurations having
colors different from the red, green, and blue sub-pixels, the
brightness of a pixel may be deteriorated.
[0007] Accordingly, there is a need for a display apparatus with
improved display quality.
SUMMARY
[0008] An exemplary embodiment of the present invention provides a
display apparatus with improved brightness and color
reproducibility.
[0009] An exemplary embodiment of the present invention provides a
display apparatus with reduced flicker and cross-talk.
[0010] According to an exemplary embodiment of the present
invention, a display apparatus includes a backlight assembly
emitting light, a driving circuit part receiving an image signal,
converting the image signal into image data, and generating a
driving signal based on the image data, and a display panel
including at least one pixel in which a plurality of sub-pixels is
arranged in a two row by four column array, wherein the display
panel receives the light to display an image in response to the
driving signal. Two sub-pixels of the sub-pixels arranged in a
first row of the array each include a white color filter and two
sub-pixels of the sub-pixels arranged in a second row of the array
each include a white color filter.
[0011] Four sub-pixels arranged in first and second columns of the
array are a first sub-pixel group, four sub-pixels arranged in
third and fourth columns of the array are a second sub-pixel group,
two sub-pixels of the first sub-pixel group each comprise one of
the white color filters, one of the remaining two sub-pixels of the
first sub-pixel group comprises a color filter having a first
color, the other one of the remaining two sub-pixels of the first
sub-pixel group comprises a color filter having a second color
different from the first color, two sub-pixels of the second
sub-pixel group each comprise one the white color filters, one of
the remaining two sub-pixels of the second sub-pixel group
comprises a color filter having a third color different from the
first and second colors, and the other one of the remaining two
sub-pixels of the second sub-pixel group comprises a color filter
having a fourth color different from the first, second, and third
colors.
[0012] The two sub-pixels including the white color filters of the
first sub-pixel group are arranged in different columns from each
other, and the two sub-pixels including the white color filters of
the second sub-pixel group are arranged in different columns from
each other.
[0013] The remaining two sub-pixels of the first sub-pixel group
are arranged in different columns from each other, and the
remaining two sub-pixels of the second sub-pixel group are arranged
in different columns from each other.
[0014] Among the first sub-pixel group, the sub-pixel arranged in
the first row and the first column is a first sub-pixel, the
sub-pixel arranged in the first row and the second column is a
second sub-pixel, the sub-pixel arranged in the second row and the
first column is a third sub-pixel, and the sub-pixel arranged in
the second row and the second column is a fourth sub-pixel, and
among the second sub-pixel group, the sub-pixel arranged in the
first row and the third column is a fifth sub-pixel, the sub-pixel
arranged in the first row and the fourth column is a sixth
sub-pixel, the sub-pixel arranged in the second row and the third
column is a seventh sub-pixel, and the sub-pixel arranged in the
second row and the fourth column is an eighth sub-pixel, and each
of the second, third, sixth, and seventh sub-pixels comprises one
of the white color filters.
[0015] The pixel is provided in a plural number and the pixels are
arranged in an N row by M column array, wherein each of N and M is
a natural number equal to or larger than 2.
[0016] The pixels arranged in a K-th column among the pixels
arranged in the N row by M column array have the same color filter
arrangement, where K is a natural number equal to or smaller than
M.
[0017] The pixels arranged in a K-th column among the pixels
arranged in the N row by M column array have the same color filter
arrangement, where K is a natural number equal to or smaller than
M.
[0018] The two sub-pixels including the white color filters of the
first sub-pixel group are arranged in the same column and the two
sub-pixels including the white color filters of the second
sub-pixel group are arranged in the same column.
[0019] Each of the sub-pixels further includes a pixel electrode
and the driving signal includes data voltages to be applied to the
pixel electrodes. The two sub-pixels, each including the white
color filter, of the sub-pixels arranged in the first row are
applied with the data voltages having polarities opposite to each
other, and the two sub-pixels, each including the white color
filter, of the sub-pixels arranged in the second row are applied
with the data voltages having polarities opposite to each
other.
[0020] The backlight assembly includes at least one light source
and a light source controller. The light source includes a first
light emitting device emitting a red light, a second light emitting
device emitting a green light, and a third light emitting device
emitting a blue light, and the light source controller receives the
image data and drives the first, second, and third light emitting
devices in a time division manner according to brightness
characteristics and color characteristics of the image data.
[0021] The light source further comprises a fourth light emitting
device emitting light having a color different from the red, green
and blue lights of the first, second, and third light emitting
devices, and the fourth light emitting device is driven in
synchronization with at least one of the first, second, and third
light emitting devices.
[0022] According to an exemplary embodiment of the present
invention, a display apparatus includes a backlight assembly
emitting light, a driving circuit part receiving an image signal,
converting the image signal into image data, and generating a
driving signal based on the image data, and a display panel
including at least one pixel in which a plurality of sub-pixels is
arranged in a two row by three column array, wherein the display
panel receives the light to display an image in response to the
driving signal. Two sub-pixels of the sub-pixels each include a
white color filter and four sub-pixels of the sub-pixels include
color filters having different colors from each other.
[0023] The pixel is provided in a plural number on the display
panel, the pixels are arranged in an N row by M column array,
wherein each of N and M is a natural number equal to or larger than
2, and wherein the pixels arranged in a K-th column of the pixels
arranged in the N row by M column array comprise the same color
filter arrangement, and K is a natural number equal to or smaller
than M.
[0024] The pixels arranged in a (K-1)th column of the pixels
arranged in the N row by M column array comprise the same color
filter arrangement.
[0025] The two sub-pixels each including the white color filter are
arranged in a second column of the two row by three column array in
each of the pixels arranged in the K-th column and the (K-1)th
column.
[0026] The color filters arranged in a first row of the two row by
three column array of each of the pixels arranged in the (K-1)th
column are arranged in the same manner as the color filters
arranged in a second row of the two row by three column array of
each of the pixels arranged in the K-th column, and the color
filters arranged in the second row of the two row by three column
array of each of the pixels arranged in the (K-1)th column are
arranged in the same manner as the color filters arranged in the
first row of the two row by three column array of each of the
pixels arranged in the K-th column.
[0027] One of the two sub-pixels including the white color filter
of each of the pixels arranged in the K-th column is arranged in a
first row and a first column of the two row by three column array,
and the remaining one of the two sub-pixels including the white
color filter of each of the pixels arranged in the K-th column is
arranged in the first row and a third column of the two row by
three column array.
[0028] One of the two sub-pixels including the white color filter
of each of the pixels arranged in the K-th column is arranged in a
first row and a first column of the two row by three column array,
and the remaining one of the two sub-pixels including the white
color filter of each of the pixels arranged in the K-th column is
arranged in a second row and a third column of the two row by three
column array.
[0029] The color filters arranged in the first row and a second
column and in the first row and the third column of the two row by
three column array of each of the pixels arranged in the (K-1)th
column are the same as the color filters arranged in the second row
and the first column and in the second row and the second column of
the two row by three column array of each of the pixels arranged in
the K-th column, and the color filters arranged in the second row
and the first column and in the second row and the second column of
the two row by three column array of each of the pixels arranged in
the (K-1)th column are the same as the color filters arranged in
the first row and the second column and in the first row and the
third column of the two row by three column array of each of the
pixels arranged in the K-th column.
[0030] According to an exemplary embodiment of the present
invention, a display apparatus includes a driving circuit part
receiving an image signal, converting the image signal into image
data, and generating a driving signal based on the image data; and
a display panel including at least one pixel in which a plurality
of sub-pixels is arranged in an array, wherein the display panel
displays an image in response to the driving signal, wherein at
least two of the sub-pixels each comprise a white color filter and
four of the sub-pixels comprise non-white color filters having
different colors from each other.
BRIEF DESCRIPTION OF THE DRAWINGS
[0031] The above and features of the present invention will become
more apparent by describing in detail exemplary embodiments thereof
with reference to the accompanying drawings in which:
[0032] FIG. 1 is a block diagram showing a display apparatus
according to an exemplary embodiment of the present invention;
[0033] FIG. 2 is a plan view showing a display panel shown in FIG.
1, according to an exemplary embodiment of the present
invention;
[0034] FIG. 3 is a cross-sectional view taken along line I-I' shown
in FIG. 2;
[0035] FIG. 4 is a circuit diagram showing a sub-pixel shown in
FIG. 2, according to an exemplary embodiment of the present
invention;
[0036] FIG. 5 is a plan view showing polarities of data voltages
applied to sub-pixels shown in FIG. 2, according to an exemplary
embodiment of the present invention;
[0037] FIG. 6 is a plan view showing a backlight unit shown in FIG.
1, according to an exemplary embodiment of the present
invention;
[0038] FIG. 7 is a block diagram showing a backlight controller
shown in FIG. 1, according to an exemplary embodiment of the
present invention;
[0039] FIG. 8 is a waveform diagram showing dimming signals output
from the backlight controller shown in FIG. 7, according to an
exemplary embodiment of the present invention;
[0040] FIGS. 9A to 9G are plan views showing a display apparatus
according to exemplary embodiments of the present invention;
and
[0041] FIGS. 10A to 10C are plan views showing a display apparatus
according to exemplary embodiments of the present invention.
DETAILED DESCRIPTION OF EXEMPLARY EMBODIMENTS
[0042] Exemplary embodiments of the present invention will be
described more fully hereinafter with reference to the accompanying
drawings. However, the present invention may be embodied in various
different ways and should not be construed as limited to the
exemplary embodiments described herein.
[0043] It will be understood that when an element or layer is
referred to as being "on," "connected to" or "coupled to" another
element or layer, it can be directly on, connected or coupled to
the other element or layer or intervening elements or layers may be
present. Like numbers may refer to like elements throughout the
specification and drawings.
[0044] FIG. 1 is a block diagram showing a display apparatus
according to an exemplary embodiment of the present invention, FIG.
2 is a plan view showing a display panel shown in FIG. 1, according
to an exemplary embodiment of the present invention, FIG. 3 is a
cross-sectional view taken along line I-I' shown in FIG. 2, and
FIG. 4 is a circuit diagram showing a sub-pixel shown in FIG. 2,
according to an exemplary embodiment of the present invention.
[0045] Referring to FIG. 1, a display apparatus includes a display
panel DP, a driving circuit part, and a backlight assembly BLA.
[0046] In the present exemplary embodiment, the display panel DP
may be a liquid crystal display employing a liquid crystal layer as
a transmission type display panel. The display panel DP may also be
various other types such as an organic light emitting diode display
panel, a plasma display panel, etc.
[0047] The driving circuit part includes a signal controller SC, a
data driver (hereinafter, referred to as the data controller) DC,
and a gate driver (hereinafter, referred to as the gate controller)
GC. The backlight assembly BLA includes a backlight BL for emitting
light and acting as a light source for the display panel DP and a
backlight controller BLC for controlling the backlight BL.
[0048] As shown in FIGS. 1 to 4, especially FIG. 3, the display
panel DP includes a first substrate 110, a second substrate 120
facing the first substrate 110 and spaced apart from the first
substrate 110, and a liquid crystal layer 130 interposed between
the first substrate 110 and the second substrate 120.
[0049] The first substrate 110 includes a plurality of first lines
GL1 to GLn extended in a first direction D1 and a plurality of
second lines DL1 to DLm extended in a second direction D2 crossing
the first direction D1. The second lines DL1 to DLm are insulated
from the first lines GL1 to GLn. Hereinafter, the first lines GL1
to GLn will be referred to as gate lines and the second lines DL1
to DLm will be referred to as data lines.
[0050] In addition, a plurality of thin film transistors is
disposed on the first substrate 110. Each of the thin film
transistors is connected to a corresponding gate line of the gate
lines GL1 to GLn and a corresponding data line of the data lines DL
to DLm.
[0051] The display panel DP includes at least one pixel PX. When
the pixel PX is provided on the display panel DP in a plural
number, the pixels PX may be arranged in a matrix form of N rows by
M columns. In this case, each of N and M is a natural number equal
to or larger than 2.
[0052] Each pixel PX includes eight sub-pixels SPX arranged in two
rows by four columns. For example, a two row by four column array.
Each of the sub-pixels SPX includes a pixel electrode PE and a
color filter CF.
[0053] The pixel electrodes PE are disposed on the first substrate
110. Each of the pixel electrodes PE is connected to a
corresponding thin film transistor TFT of the thin film
transistors.
[0054] Hereinafter, one sub-pixel SPX will be described in detail
with reference to FIG. 4. Referring to FIG. 4, the thin film
transistor TFT includes a gate electrode connected to a gate line
GL1, a source electrode connected to a data line DLj, and a drain
electrode connected to the pixel electrode PE. When a voltage is
applied to the gate electrode through the gate line GL1, the thin
film transistor TFT is turned on. Accordingly, a data voltage
applied to the source electrode through the data line DLj is
charged in the pixel electrode PE through the turned-on thin film
transistor TFT as a pixel voltage.
[0055] As shown in FIG. 3, the color filter CF may be disposed on
the second substrate 120. The color filters CF included in the
sub-pixels SPX are disposed corresponding to the pixel electrodes
PE, respectively. The color filters CF may have the same area as
the pixel electrodes PE and face the pixel electrodes PE.
[0056] In addition, the display panel DP includes a common
electrode 122 (also identified hereinafter as CE) to form an
electric field in cooperation with the pixel electrodes PE. As an
example, the common electrode 122 is disposed on the second
substrate 120 to cover the color filters CF.
[0057] In addition, the color filters CF are spaced apart from each
other and a black matrix BM is disposed between the color filters
CF to prevent light from being mixed between adjacent color filters
CF. The black matrix BM may be disposed on the second substrate
120.
[0058] In the present exemplary embodiment, the common electrode CE
and the color filters CF are disposed on the second substrate 120,
but they should not be limited thereto or thereby. For example, the
common electrode CE and the color filters CF may be disposed on the
first substrate 110.
[0059] Referring to FIG. 2, the pixel PX includes eight sub-pixels
including four sub-pixels each having a color filter CF of a white
color W (hereinafter, referred to as the white color filter) and
four sub-pixels respectively having different color filters R
(hereinafter, referred to as the red color filter), G (hereinafter,
referred to as the green color filter), B (hereinafter, referred to
as the blue color filter), and C (hereinafter, referred to as the
cyan color filter).
[0060] Two sub-pixels SPX arranged in the first row of the two row
by four column array each include the white color filter CF and two
sub-pixels SPX arranged in the second row of the two row by four
column array each include the white color filter CF.
[0061] Of the sub-pixels SPX, four sub-pixels arranged in the first
and second columns of the array are referred to as a first
sub-pixel group SPX1 and four sub-pixels arranged in the third and
fourth columns of the array are referred to as a second sub-pixel
group SPX2.
[0062] Among the first sub-pixel group SPX1, the sub-pixel arranged
in the first row and the first column is referred to as a first
sub-pixel SPX1-1, the sub-pixel arranged in the first row and the
second column is referred to as a second sub-pixel SPX1-2, the
sub-pixel arranged in the second row and the first column is
referred to as a third sub-pixel SPX1-3, and the sub-pixel arranged
in the second row and the second column is referred to as a fourth
sub-pixel SPX1-4.
[0063] Among the second sub-pixel group SPX2, the sub-pixel
arranged in the first row and the third column is referred to as a
fifth sub-pixel SPX2-1, the sub-pixel arranged in the first row and
the fourth column is referred to as a sixth sub-pixel SPX2-2, the
sub-pixel arranged in the second row and the third column is
referred to as a seventh sub-pixel SPX2-3, and the sub-pixel
arranged in the second row and the fourth column is referred to as
an eighth sub-pixel SPX2-4.
[0064] Each of two sub-pixels in the first sub-pixel group SPX1
includes the white color filter CF, one of the remaining two
sub-pixels in the first sub-pixel group SPX1 includes a first color
filter CF, and the other of the remaining two sub-pixels in the
first sub-pixel group SPX1 includes a second color filter CF.
[0065] Each of two sub-pixels in the second sub-pixel group SPX2
includes the white color filter CF, one of the remaining two
sub-pixels in the second sub-pixel group SPX2 includes a third
color filter CF, and the other of the remaining two sub-pixels in
the second sub-pixel group SPX2 includes a fourth color filter
CF.
[0066] In the present exemplary embodiment, the first, second,
third, and fourth color filters CF are different from each other.
For instance, the first color filter CF is the red color filter R,
the second color filter CF is the cyan color filter C, the third
color filter CF is the blue color filter B, and the fourth color
filter CF is the green color filter G. The second color filter CF
may be replaced with different color filters, such as a yellow
color filter, a purple color filter, etc., however the red, blue,
and green color filters R, B, and G are included in the first to
fourth color filters CF.
[0067] Thus, the display apparatus including the pixel PX with the
color filters CF of four colors may have improved color
reproducibility.
[0068] In detail, each of the second sub-pixel SPX1-2, the third
sub-pixel SPX1-3, the sixth sub-pixel SPX2-2, and the seventh
sub-pixel SPX2-3 includes the white color filter CF.
[0069] The first sub-pixel SPX1-1, the fourth sub-pixel SPX1-4, the
fifth sub-pixel SPX2-1, and the eighth sub-pixel SPX2-4 include the
red color filter R, the cyan color filter C, the blue color filter
B, and the green color filter G, respectively.
[0070] In addition, the pixels PX shown in FIG. 2 have the same
arrangement, but they should not be limited thereto or thereby. In
other words, the arrangement of the pixels PX may be changed as
shown in FIGS. 9A to 9G.
[0071] Referring to FIG. 1 again, the signal controller SC receives
image signals Rd, Gd, and Bd and control signals, such as a
vertical synchronizing signal Vsync, a horizontal synchronizing
signal Hsync, a main clock signal MCLK, a data enable signal DE,
etc., from an external graphics controller (not shown). The signal
controller SC processes the image signals Rd, Gd, and Bd and the
control signals to be appropriate for the display panel DP and
generates a gate control signal CONT1, a data control signal CONT2,
and a backlight control signal CONT3.
[0072] The image signals include a red image signal Rd, a green
image signal Gd, and a blue image signal Bd. Each of the red image
signal Rd, the green image signal Gd, and the blue image signal Bd
includes brightness information and color information. The red
image signal Rd, the green image signal Gd, and the blue image
signal Bd include red, green, and blue color information,
respectively.
[0073] The signal controller SC generates image data Rd', Gd', Bd',
Cd', W1, W2, W3, and W4 based on the red, green, and blue image
signals Rd, Gd, and Bd. The image data includes red image data Rd',
green image data Gd', blue image data Bd', fourth color image data
Cd', and four white color image data W1, W2, W3, and W4.
[0074] The red image data Rd', the green image data Gd', the blue
image data Bd' respectively include the brightness information and
the color information of the red image signal Rd, the green image
signal Gd, and the blue image signal Bd.
[0075] The fourth color image data Cd' is generated based on two of
the red image signal Rd, the green image signal Gd, and the blue
image signal Bd. For instance, when the fourth color image data Cd'
is cyan image data, the cyan image data includes color information
of a cyan color obtained by mixing the color information of the
blue image signal Bd and the color information of the green image
signal Gd. In addition, when the fourth image data Cd' is the cyan
image data it includes brightness information which is smaller than
the brightness information of the green and blue image signals Gd
and Bd.
[0076] The four white image data W1, W2, W3, and W4 include color
information of a white color. In addition, the four white image
data W1, W2, W3, and W4 include brightness information equal to the
smallest brightness level among the brightness information of the
red image signal Rd, the green image signal Gd, and the blue image
signal Bd.
[0077] The signal controller SC provides the red, green, and blue
image data Rd', Gd', Bd', the fourth color image data Cd', and the
four white image data W1, W2, W3, and W4 generated based on the
red, green, and blue image signals Rd, Gd, and Bd to the data
driver DC.
[0078] The gate control signal CONT1 is applied to the gate driver
GC. The gate control signal CONT1 includes various signals, such as
a vertical synchronizing start signal STV indicating an output
start of a gate-on pulse, e.g., a high period of a gate signal, a
gate clock signal CPV controlling an output timing of the gate-on
pulse, an output enable signal OE controlling a width of the
gate-on pulse, etc.
[0079] The data control signal CONT2 is applied to the data driver
DC. The data control signal CONT2 includes a horizontal
synchronizing start signal STH indicating an input start of the
red, green, and blue image data Rd', Gd', and Bd', a load signal TP
indicating an application of data voltages to the data lines DL1 to
DLm, an inversion signal RSV inverting the polarity of the data
voltages with respect to a common voltage Vcom, and a data clock
signal HCLK.
[0080] The backlight control signal CONT3 is applied to the
backlight controller BLC. The backlight control signal CONT3 may
include the red, green, and blue image signals Rd, Gd, and Bd or
the image data Rd', Gd', Bd', Cd', W1, W2, W3, and W4. The gate
driver GC sequentially applies analog signals in response to a
gate-on voltage Von and a gate-off voltage Voff to the gate lines
GL1 to GLn as gate signals. The gate driver GC may include a
plurality of stages with shift registers.
[0081] The data driver DC is connected to the data lines DL1 to DLm
of the display panel DP. The data driver DC receives the image data
Rd', Gd', Bd', Cd', W1, W2, W3, and W4 and applies the data
voltages to the data lines DL1 to DLm in response to a reference
voltage Vref.
[0082] FIG. 5 is a plan view showing polarities of data voltages
applied to the sub-pixels SPX shown in FIG. 2, according to an
exemplary embodiment of the present invention.
[0083] The data driver DC may apply the data voltages having the
polarities as shown in FIG. 5 to the sub-pixels SPX. In more
detail, when the data driver DC applies the data voltages having
the polarities as shown in FIG. 5 to the data lines DL1 to DLm, the
data voltages applied to the data lines DL1 to DLm are applied to
the sub-pixels SPX through the thin film transistors and charged in
the sub-pixels SPX.
[0084] In this case, the two sub-pixels SPX including the white
color filter CF among the sub-pixels SPX arranged in the first row
of the array are applied with the data voltages having polarities
opposite to each other. In other words, when one of the two
sub-pixels SPX including the white color filter CF is applied with
a positive (+) data voltage, the other one of the two sub-pixels
SPX including the white color filter CF is applied with a negative
(-) data voltage.
[0085] Similar to the above-mentioned example, the two sub-pixels
SPX including the white color filter CF among the sub-pixels SPX
arranged in the second row of the array are applied with the data
voltages having polarities opposite to each other.
[0086] Although the arrangement of the white color filters CF may
be changed to be different from the above-mentioned arrangement as
shown in FIG. 2, the data voltages are applied to the sub-pixels
SPX including the white color filters CF in the same manner as
described above with reference to FIG. 5.
[0087] The two sub-pixels SPX including the white color filters CF
satisfy the electrical neutral condition in a row. Thus, a flicker
phenomenon may be prevented from occurring between sub-pixels SPX
adjacent to each other, thereby reducing crosstalk.
[0088] The backlight assembly BLA receives the backlight control
signal CONT3 to control the amount of light and the combination of
colors provided to the display panel DP.
[0089] When the backlight control signal CONT3 includes the image
data Rd', Gd', Bd', Cd', W1, W2, W3, and W4, the amount of light is
controlled in each area of the display panel DP according to
brightness characteristics of the image data Rd', Gd', Bd', Cd',
W1, W2, W3, and W4, and the combination of colors is controlled in
each area of the display panel DP according to color
characteristics of the image data Rd', Gd', Bd', Cd', W1, W2, W3,
and W4.
[0090] FIG. 6 is a plan view showing a backlight unit shown in FIG.
1, according to an exemplary embodiment of the present invention,
FIG. 7 is a block diagram showing a backlight controller shown in
FIG. 1, according to an exemplary embodiment of the present
invention, and FIG. 8 is a waveform diagram showing dimming signals
output from the backlight controller shown in FIG. 7, according to
an exemplary embodiment of the present invention.
[0091] The backlight assembly BLA includes the backlight BL for
emitting light and the backlight controller BLC for controlling the
backlight BL. The backlight BL is disposed under the display panel
DP and provides light to the display panel DP.
[0092] The backlight BL is mounted on a printed circuit board PCB.
The printed circuit board PCB includes a plurality of wires (not
shown) to apply signals from the outside to the backlight BL.
[0093] The backlight BL is provided on the printed circuit board
PCB in a plural number to uniformly provide light to the display
panel DP. The backlights BL may be substantially simultaneously
controlled or independently controlled.
[0094] In addition, the backlight BL includes at least first,
second, and third light emitting devices BL-1, BL-2, and BL-3. The
first, second, and third light emitting devices BL-1, BL-2, and
BL-3 emit three primary colors. For instance, the first, second,
and third light emitting devices BL-1, BL-2, and BL-3 may employ a
first light emitting diode emitting a red light, a second light
emitting diode emitting a green light, and a third light emitting
diode emitting a blue light, respectively.
[0095] As shown in FIG. 6, the backlight BL may further include at
least one fourth light emitting device BL-4 emitting a different
color light from those of the first, second, and third light
emitting devices BL-1, BL-2, and BL-3. The fourth light emitting
diode BL-4 may employ a light emitting diode emitting a cyan light
or an emerald light.
[0096] Referring to FIG. 7, the backlight controller BLC includes a
brightness controller BLC-1 and a color controller BLC-2. The
brightness controller BLC-1 analyzes the brightness characteristics
of the image data Rd', Gd', Bd', Cd', W1, W2, W3, and W4 and
outputs a brightness control signal S1 based on the analyzed
brightness characteristics, and the color controller BLC-2 analyzes
the color characteristics of the image data Rd', Gd', Bd', Cd', W1,
W2, W3, and W4 and outputs a color control signal S2 based on the
analyzed color characteristics. The brightness control signal S1
may be a digital signal representing the brightness level of the
image data Rd', Gd', Bd', Cd', W1, W2, W3, and W4, and the color
control signal S2 may be a digital signal representing the color
level of the image data Rd', Gd', Bd', Cd', W1, W2, W3, and W4.
[0097] In addition, the backlight controller BLC includes a dimming
controller BLC-3 receiving the brightness control signal S1 and the
color control signal S2. The dimming controller BLC-3 modulates a
driving voltage signal VBLA from the outside in response to the
brightness control signal S1 and the color control signal S2 and
outputs a dimming control signal S3 including the brightness
information and the color information of the image data Rd', Gd',
Bd', Cd', W1, W2, W3, and W4.
[0098] The first, second, and third light emitting devices BL-1,
BL-2, and BL-3 may be independently driven by the dimming control
signal S3 applied from the backlight controller BLC. In this case,
the first, second, and third light emitting diodes BL-1, BL-2, and
BL-3 are driven in a time division manner.
[0099] As shown in FIG. 8, the dimming control signal S3 includes a
first dimming control signal S3-1 to control the first light
emitting device BL-1, a second dimming control signal S3-2 to
control the second light emitting device BL-2, and a third dimming
control signal S3-3 to control the third light emitting device
BL-3. The first, second, and third dimming control signals S3-1,
S3-2, S3-3 may be sequentially applied to the first, second, and
third light emitting devices BL-1, BL-2, and BL-3.
[0100] Each of the first, second, and third dimming control signals
S3-1, S3-2, and S3-3 has a level depending on the brightness
information and the color information of the image data Rd', Gd',
Bd', Cd', W1, W2, W3, and W4. In addition, the amount of the light
emitted from each of the first, second, and third light emitting
devices BL-1, BL-2, and BL-3 is proportional to the level of each
of the first, second, and third dimming control signals S3-1, S3-2,
and S3-3.
[0101] As described above, when the first, second, and third light
emitting devices BL-1, BL-2, and BL-3 include red, green, and blue
light emitting diodes respectively emitting the red, green, and
blue lights, the first dimming control signal S3-1 is generated
based on the red image data Rd', the second dimming control signal
S3-2 is generated based on the green to image data Gd', and the
third dimming control signal S3-3 is generated based on the blue
image data Bd'.
[0102] In addition, only one of the first, second, and third light
emitting devices BL-1, BL-2, and BL-3 may emit light during one
frame period Ft. In this case, the sub-pixel SPX including the
white color filter CF among the sub-pixels SPX displays a specific
color. In other words, the display apparatus may display the
specific color or the white color using the sub-pixel SPX including
the white color filter.
[0103] As described above, the backlight BL may further include the
fourth light emitting device BL-4. The fourth light emitting device
BL-4 emits light different from those of the first, second, and
third light emitting devices BL-1, BL-2, and BL-3. The fourth light
emitting device BL-4 is driven in synchronization with one of the
first, second, and third light emitting devices BL-1, BL-2, and
BL-3.
[0104] The dimming controller BLC-3 generates a fourth dimming
control signal S3-4 to control the fourth light emitting device
BL-4 together with the first, second, and third dimming control
signals S3-1, S3-2, and S3-3. The fourth dimming control signal
S3-4 is output at the same time as one of the first, second, and
third dimming control signals S3-1, S3-2, and S3-3. As shown in
FIG. 8, the fourth dimming control signal S3-4 may be output at the
same time as the first dimming control signal S3-1.
[0105] The fourth dimming control signal S3-4 is generated based on
the fourth color image data Cd' or based on two image data among
the red image data Rd', the green image data Gd', and the blue
image data Bd'.
[0106] The backlight BL further including the fourth light emitting
device BL-4 may provide a variety of light to the display panel DP.
In other words, the display apparatus may have improved color
reproducibility by using the backlight BL.
[0107] FIGS. 9A to 9G are plan views showing display apparatuses
according to exemplary embodiments of the present invention.
[0108] In the display apparatuses employing the display panels DP
shown in FIGS. 9A to 9G, the arrangement of the color filters CF
included in the pixels PX are different from that of the display
apparatus described with reference to FIGS. 1 to 8. Hereinafter,
the arrangement of the color filters CF included in the pixels PX
will be mainly described with reference to 9A to 9G. In addition,
the same reference numerals denote the same elements in FIGS. 1 to
8, and thus detailed descriptions of the same elements will be
omitted.
[0109] The display panels DP shown in FIGS. 9A to 9G include at
least one pixel PX as described with reference to FIG. 2. The
display panels DP may include a plurality of pixels PX arranged in
the matrix form of N rows by M columns. In this case, each of N and
M is a natural number equal to or larger than 2.
[0110] Each pixel PX includes eight sub-pixels SPX arranged in a
two row by four column array. Each of the sub-pixels SPX includes a
pixel electrode PE and a color filter CF.
[0111] In addition, two sub-pixels among the sub-pixels SPX
arranged in the first row of the array each include the white color
filter W, and two sub-pixels among the sub-pixels SPX arranged in
the second row of the array each include the white color filter
W.
[0112] In the display panels DP shown in FIGS. 9A to 9F, the two
sub-pixels, each including the white color filter W of the first
sub-pixel group SPX1, are arranged in different columns from each
other, and the two sub-pixels, each including the white color W of
the second sub-pixel group SPX2, are arranged in different columns
from each other.
[0113] Different from the above-described arrangement, in the
display panel DP shown in FIG. 9G, the two sub-pixels each
including the white color filter W of the first sub-pixel group
SPX1 are arranged in the same column, and the two sub-pixels each
including the white color filter W of the second sub-pixel group
SPX2 are arranged in the same column.
[0114] In the first sub-pixel group SPX1 of each display panel DP
shown in FIGS. 9A to 9E, the two sub-pixels each including the
white color filter W are alternately arranged with the other two
sub-pixels each not including the white color filter W.
[0115] In the second sub-pixel group SPX2 of each display panel DP
shown in FIGS. 9A to 9E, the two sub-pixels each including the
white color filter W are alternately arranged with the other two
sub-pixels each not including the white color filter W.
[0116] In the display panel DP shown in FIG. 9A, the pixels PX
arranged in a P-th row (P is a natural number equal to or smaller
than N) among the pixels arranged in the matrix form of N rows by M
columns may include the color filters CF arranged in the same
way.
[0117] Referring to FIG. 9A, in each pixel PX arranged in a first
row of the N rows, the first sub-pixel SPX1-1, the fourth sub-pixel
SPX1-4, the fifth sub-pixel SPX2-1, and the eighth sub-pixel SPX2-4
may include the red color filter R, the cyan color filter C, the
blue color filter B, and the green color filter G, respectively. In
addition, in each pixel PX arranged in the first row of the N rows,
the second sub-pixel SPX1-2, the third sub-pixel SPX1-3, the sixth
sub-pixel SPX2-2, and the seventh sub-pixel SPX2-3 may include the
white color filter W. However, the pixels PX arranged in different
rows may include the color filters CF arranged in different ways.
This is shown, for example, in the second row of the N rows in FIG.
9A.
[0118] In addition, as shown in FIG. 9B, the pixels PX arranged in
a K-th column (K is a natural number equal to or smaller than M)
among the pixels arranged in the matrix form of N rows by M columns
may include the color filters CF arranged in the same way. However,
the pixels PX arranged in different columns may include the color
filters CF arranged in different ways. This is shown, for example,
by the pixels PX in the left-hand side column of FIG. 9B and the
pixels PX in the column adjacent to the left-hand side column in
FIG. 9B.
[0119] As shown in FIGS. 9C and 9D, the pixels PX of adjacent
columns and rows in the matrix form of N rows by M columns may each
have a different arrangement of color filters CF.
[0120] According to the above described embodiments, the display
apparatus includes eight sub-pixels SPX. The eight sub-pixels SPX
include four white color filters W and four color filters R, G, B
and C having different colors from each other. In this case, two
sub-pixels SPX of the sub-pixels arranged in the first row of the
two row by four column array and two sub-pixels SPX of the
sub-pixels arranged in the second row of the two row by four column
array each include the white color filter W. Thus, the display
apparatus may have improved brightness and color
reproducibility.
[0121] In addition, the display apparatus includes the backlight
assembly BLA including two or more light emitting devices
BL-1-through BL-4 emitting colors different from each other. The
sub-pixels SPX including the white color filter W display a
predetermined color using the light emitted from the light emitting
devices BL-1-through BL-4. Accordingly, the color reproducibility
of an image may be improved.
[0122] Further, since the two sub-pixels SPX including the white
color filter W among the sub-pixels arranged in the first row of
the two row by four column array are applied with data voltages
having polarities opposite to each other and the two sub-pixels SPX
including the white color filter W among the sub-pixels arranged in
the second row of the two row by four column array are applied with
data voltages having polarities opposite to each other, the display
quality of the display apparatus may be improved. In other words,
flicker and cross-talk may be prevented from occurring in the
sub-pixels SPX.
[0123] FIGS. 10A to 10C are plan views showing display apparatuses
according to exemplary embodiments of the present invention.
[0124] In the display apparatuses each including the display panels
DP shown in FIGS. 10A to 10C, the configuration of the sub-pixels
SPX included in the pixels PX and the arrangement of the color
filters CF of the sub-pixels SPX are different from those of the
display apparatus described with reference to FIGS. 1 to 8. In
addition, in the display apparatuses each including the display
panels DP shown in FIGS. 10A to 10C, the signal controller SC
(refer to FIG. 1) generates the image data Rd', Gd', Bd', Cd', W1,
and W2 based on the red, green, and blue image data Rd, Gd, and Bd.
The image data Rd', Gd', Bd', Cd', W1, and W2 include the red image
data Rd', the green image data Gd', the blue image data Bd', the
fourth color image data Cd', and two white image data W1 and
W2.
[0125] The data driver DC (refer to FIG. 1) is connected to the
data lines DL1 to DLm (refer to FIG. 1) of the display panel DP.
The data driver DC receives the image data Rd', Gd', Bd', Cd', W1,
and W2 and applies the data voltages to the data lines DL1 to DLm
in response to a reference voltage Vref applied from the
outside.
[0126] Hereinafter, the arrangements of the sub-pixels SPX and the
color filters CF will be mainly described with reference to FIGS.
10A to 10C.
[0127] Each display panel DP shown in FIGS. 10A to 10C includes at
least one pixel PX. The display panels DP may include a plurality
of pixels PX arranged in the matrix form of N rows by M columns. In
the present exemplary embodiment, each of N and M is a natural
number equal to or larger than 2.
[0128] Each pixel PX includes six sub-pixels SPX arranged in a two
row by three column array. Each of the sub-pixels SPX includes a
pixel electrode PE and a color filter CF.
[0129] As shown in FIGS. 10A to 10C, each pixel PX includes two
white color filters W and four color filters R, G, B, and C having
different colors from each other. The six color filters CF
respectively correspond to the six sub-pixels SPX.
[0130] Among the six sub-pixels SPX, the sub-pixel arranged in the
first row and the first column of the array is referred to as a
first sub-pixel SPX-1, the sub-pixel arranged in the first row and
the second column of the array is referred to as a second sub-pixel
SPX-2, and the sub-pixel arranged in the first row and the third
column of the array is referred to as a third sub-pixel SPX-3. In
addition, the sub-pixel arranged in the second row and the first
column of the array is referred to as a fourth sub-pixel SPX-4, the
sub-pixel arranged in the second row and the second column of the
array is referred to as a fifth sub-pixel SPX-5, and the sub-pixel
arranged in the second row and the third column of the array is
referred to as a sixth sub-pixel SPX-6.
[0131] In the present exemplary embodiment, as shown in FIGS. 10A
to 100C, the pixels PX arranged in a K-th column (K is an even
number equal to or smaller than M) among the pixels arranged in the
matrix form of N rows by M columns may include the color filters CF
arranged in the same way.
[0132] Referring to FIG. 10A, among the pixels PX arranged in the
second column, for instance the second column from the left-hand
side of the display panel DP, the first sub-pixel SPX-1 includes
the cyan color filter C, the second sub-pixel SPX-2 includes the
white color filter W, and the third sub-pixel SPX-3 includes the
green color filter G. In addition, the fourth sub-pixel SPX-4, the
fifth sub-pixel SPX-5, and the sixth sub-pixel SPX-6 include the
red color filter R, the white color filter W, and the blue color
filter B, respectively. The rest of the pixels PX arranged in the
second column may have this color filter CF arrangement.
[0133] In addition, the pixels PX arranged in a (K-1)th column
among the pixels arranged in the matrix form of N rows by M columns
may include the color filters CF arranged in the same way.
[0134] For instance, among the pixels PX arranged in the first
column, for example, the first column from the left-hand side of
the display panel DP, the first sub-pixel SPX-1 includes the red
color filter R, the second sub-pixel SPX-2 includes the white color
filter W, and the third sub-pixel SPX-3 includes the blue color
filter B. In addition, the fourth sub-pixel SPX-4, the fifth
sub-pixel SPX-5, and the sixth sub-pixel SPX-6 include the cyan
color filter C, the white color filter W, and the green color
filter B, respectively. The rest of the pixels PX arranged in the
first column may have this color filter CF arrangement.
[0135] In addition, even though the display panels DP shown in
FIGS. 10A to 10C satisfy the above-mentioned condition, that is,
the pixels PX arranged in a column may include the color filters CF
arranged in the same way; the arrangement of the color filters CF
is different in each display panel DP.
[0136] As shown in FIG. 10A, the two sub-pixels SPX including the
white color filter W may be arranged in the second column of the
two row by three column array in the case of the pixels PX arranged
in the K-th column and the (K-1)th column.
[0137] In addition, the color filters CF arranged in the first row
of the two row by three column array of each of the pixels PX
arranged in the (K-1)th column may have the same arrangement as the
color filters CF arranged in the second row of the two row by three
column array of each of the pixels PX arranged in the K-th column.
In addition, the color filters CF arranged in the second row of the
two row by three column array of each of the pixels PX arranged in
the (K-1)th column may have the same arrangement as the color
filters CF arranged in the first row of the two row by three column
array of each of the pixels PX arranged in the K-th column.
[0138] As an example, the first sub-pixel SPX-1 and the third
sub-pixel SPX-3 of each pixel PX arranged in the first column of
the matrix form of N rows by M columns respectively include the red
color filter R and the blue color filter B, and the fourth
sub-pixel SPX-4 and the sixth sub-pixel SPX-6 of each pixel PX
arranged in the second column of the matrix form of N rows by M
columns respectively include the red color filter R and the blue
color filter B. In addition, the fourth sub-pixel SPX-4 and the
sixth sub-pixel SPX-6 of each pixel PX arranged in the first column
of the matrix form of N rows by M columns include the cyan color
filter C and the green color filter C respectively, and the first
sub-pixel SPX-1 and the third sub-pixel SPX-3 of each pixel PX
arranged in the second column of the matrix form of N rows by M
columns include the cyan color filter C and the green color filter
G, respectively.
[0139] Referring to FIG. 10B, one of the two sub-pixels SPX
including the white color filter W is arranged in the first row and
the first column of the two row by three column array and the other
one of the two sub-pixels SPX including the white color filter W is
arranged in the first row and the third column of the two row by
three column array in each of the pixels PX arranged in the K-th
column. In other words, the first sub-pixel SPX-1 and the third
sub-pixel SPX-3 may include the white color filter W.
[0140] In FIG. 10B, the color filters CF arranged in the second row
of the two row by three column array of each of the pixels PX
arranged in the (K-1)th column may have the same arrangement as the
color filters CF arranged in the first row of the two row by three
column array of each of the pixels PX arranged in the K-th
column.
[0141] In addition, the color filters CF arranged in the first row
of the two row by three column array of each of the pixels PX
arranged in the (K-1)th column may have the same arrangement as the
color filters CF arranged in the second row of the two row by three
column array of each of the pixels PX arranged in the K-th
column.
[0142] For instance, the fourth sub-pixel SPX-4, the fifth
sub-pixel SPX-5, and the sixth sub-pixel SPX-6 in each pixel PX
arranged in the first column of the matrix form of N rows by M
columns may respectively have the same white color filter W of the
first sub-pixel SPX-1, the same cyan color filter C of the second
sub-pixel SPX-2, and the same white color filter W of the third
sub-pixel SPX-3 in each pixel PX arranged in the second column of
the matrix form of N rows by M columns.
[0143] Referring to FIG. 10C, the color filter CF arranged in the
first row and the second column of the two row by three column
array and the color filter CF arranged in the first row and the
third column of the two row by three column array in each pixel PX
arranged in the (K-1)th column may be the same as the color filter
CF arranged in the second row and the first column of the two row
by three column array and the color filter CF arranged in the
second row and the second column of the two row by three column
array in each pixel PX arranged in the K-th column.
[0144] In addition, the color filters CF arranged in the second row
and the first column of the two row by three column array and in
the second row and the second column of the two row by three column
array in each pixel PX arranged in the (K-1)th column may be
respectively the same as the color filters CF arranged in the first
row and the second column of the two row by three column array and
in the first row and the third column of the two row by three
column array in each pixel PX arranged in the K-th column.
[0145] As an example, the second sub-pixel SPX-2 and the third
sub-pixel SPX-3 included in each pixel PX arranged in the first
column of the matrix form of N rows by M columns include the red
color filter R and the blue color filter B, respectively, and the
fourth sub-pixel SPX-4 and the fifth sub-pixel SPX-5 included in
each pixel PX arranged in the second column of the matrix form of N
rows by M columns include the red color filter R and the blue color
filter B, respectively. In addition, the fourth sub-pixel SPX-4 and
the fifth sub-pixel SPX-5 included in each pixel PX arranged in the
first column of the matrix form of N rows by M columns include the
cyan color filter C and the green color filter G, respectively, and
the second sub-pixel SPX-2 and the third sub-pixel SPX-3 included
in each pixel PX arranged in the second column of the matrix form
of N rows by M columns include the cyan color filter C and the
green color filter G, respectively.
[0146] The display apparatus according to the above embodiment
includes six sub-pixels SPX. The six sub-pixels SPX include two
white color filters W and four color filters R, G, B, and C having
different colors from each other. Thus, the display apparatus may
have improved brightness and color reproducibility.
[0147] Although the exemplary embodiments of the present invention
have been described, it is understood that the present invention
should not be limited to these exemplary embodiments but various
changes and modifications can be made by one of ordinary skill in
the art within the spirit and scope of the present invention as
hereinafter claimed.
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