CN104155792A - Color film substrate and display device - Google Patents
Color film substrate and display device Download PDFInfo
- Publication number
- CN104155792A CN104155792A CN201410344585.9A CN201410344585A CN104155792A CN 104155792 A CN104155792 A CN 104155792A CN 201410344585 A CN201410344585 A CN 201410344585A CN 104155792 A CN104155792 A CN 104155792A
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- common electrode
- color film
- film substrate
- metal
- black matrix
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- 239000000758 substrate Substances 0.000 title claims abstract description 134
- 229910052751 metal Inorganic materials 0.000 claims abstract description 139
- 239000002184 metal Substances 0.000 claims abstract description 139
- 239000011159 matrix material Substances 0.000 claims abstract description 37
- RYGMFSIKBFXOCR-UHFFFAOYSA-N Copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 claims description 5
- ZOKXTWBITQBERF-UHFFFAOYSA-N Molybdenum Chemical compound [Mo] ZOKXTWBITQBERF-UHFFFAOYSA-N 0.000 claims description 5
- 229910052782 aluminium Inorganic materials 0.000 claims description 5
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 claims description 5
- 229910052802 copper Inorganic materials 0.000 claims description 5
- 239000010949 copper Substances 0.000 claims description 5
- 229910052750 molybdenum Inorganic materials 0.000 claims description 5
- 239000011733 molybdenum Substances 0.000 claims description 5
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 claims description 4
- 230000007547 defect Effects 0.000 abstract description 9
- 239000000853 adhesive Substances 0.000 abstract 1
- 230000001070 adhesive effect Effects 0.000 abstract 1
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 21
- 239000010931 gold Substances 0.000 description 21
- 229910052737 gold Inorganic materials 0.000 description 21
- 239000012945 sealing adhesive Substances 0.000 description 7
- 239000004973 liquid crystal related substance Substances 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 230000005540 biological transmission Effects 0.000 description 3
- 238000012986 modification Methods 0.000 description 3
- 230000004048 modification Effects 0.000 description 3
- 125000006850 spacer group Chemical group 0.000 description 3
- 238000010586 diagram Methods 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 239000003292 glue Substances 0.000 description 2
- 238000007789 sealing Methods 0.000 description 2
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 239000003086 colorant Substances 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 238000005530 etching Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
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- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
The invention discloses a color film substrate and a display device. The color film substrate comprises a substrate base plate, a black matrix and a common electrode, wherein the common electrode is arranged on one side, away from the substrate base plate, of the black matrix which is formed on the substrate base plate. At least one first metal wire is arranged in a shading area, corresponding to the black matrix, in a display area of the color film substrate and is connected with a common voltage input end, and a plurality of points on each first metal wire are electrically connected with the common electrode. After the color film substrate and an array substrate are connected through a golden ball doped frame seal adhesive, a common electrode wire of the array substrate can be communicated with the first metal wires on the color film substrate by golden balls, voltages in different areas of the common electrode of the color film substrate can be transmitted and inputted by the at least one first metal wires, and accordingly voltage uniformity of the common electrode of the color film substrate is guaranteed, and defects of flickering, crosstalk, nonuniformity and the like of frames displayed by a display panel are overcome.
Description
Technical Field
The invention relates to the technical field of display, in particular to a color film substrate and a display device.
Background
In the existing liquid crystal display device, a common electrode on a color film substrate and a common electrode line on an array substrate are at the same voltage, but the voltage of the common electrode on the color film substrate is not independently supplied, and needs to be conducted and input from the common electrode line of the array substrate, so that the common electrode on the color film substrate and the common electrode line on the array substrate need to be conducted.
Referring to fig. 1, in a conventional color filter substrate, after a black matrix 02 and a color filter layer 03 are usually formed on a substrate 01, a common electrode 04 of the color filter substrate is directly formed on the black matrix 02, so that after the color filter substrate and an array substrate are connected in a box-to-box manner, the common electrode 04 on the color filter substrate is conducted with a common electrode line on the array substrate through a conductive gold ball 05 doped in a frame sealing adhesive, so that an electric field is formed between the common electrode on the color filter substrate and a pixel electrode on the array substrate to drive a liquid crystal located therebetween to rotate, and a combination of different light intensities of three colors, red, green and blue, is controlled by controlling a light transmission amount to display a colorful image.
However, the common electrode of the color film substrate is usually made of Indium Tin Oxide (ITO), and for a larger-sized display panel, a larger-sized common electrode needs to be arranged, which may cause uneven voltage at each position of the common electrode, so that the display device may display images with different levels of flicker, crosstalk, uneven images, and the like, and may seriously affect the display effect and the product yield of the display device.
Disclosure of Invention
The invention aims to provide a color film substrate and a display device, wherein the voltage distribution on a common electrode in the color film substrate is uniform, so that the defects of flicker, crosstalk, uneven picture and the like of a picture displayed by the display device caused by uneven voltage distribution on the common electrode of the color film substrate can be solved, and the display quality of the display device is improved.
In order to achieve the purpose, the invention provides the following technical scheme:
in one aspect, the present invention provides a color filter substrate, including: the black matrix is arranged on one side of the black matrix, which is far away from the substrate base plate; at least one first metal wire is arranged in a shading area corresponding to the black matrix in the color film substrate display area, the at least one first metal wire is connected with a common voltage input end, and a plurality of points on each first metal wire are electrically connected with the common electrode.
In the color film substrate provided by the invention, at least one first metal wire connected with a common voltage input end is arranged on a shading area corresponding to the black matrix in a display area of the color film substrate, and a plurality of points on each first metal wire are electrically connected with the common electrode. After the color film substrate and the array substrate provided by the invention are connected in a box-to-box manner through the frame sealing adhesive doped with the gold balls, the gold balls can conduct the common electrode wires of the array substrate and the first metal wires on the color film substrate, so that the common voltage is transmitted to the first metal wires through the gold balls, and then the voltage is transmitted to different areas of the common electrode through a plurality of points on the first metal wires, which are electrically connected with the common electrode, so that the voltage loss of the common voltage in the transmission process of the common electrode is reduced, the voltage at each position of the common electrode of the color film substrate is uniform, and the defects of flicker, crosstalk, uneven picture and the like of the picture displayed by a display device caused by uneven voltage distribution on the common electrode of the color film substrate are solved.
Therefore, the voltage distribution on the common electrode in the color film substrate provided by the invention is uniform, the defects of flicker, crosstalk, uneven pictures and the like of the pictures displayed by the display device can be solved, and the display quality and the product yield of the display device can be improved.
Preferably, the first metal lines are arranged side by side, so that the first metal lines can be conducted with different regions of the common electrode of the color film substrate.
Preferably, any two adjacent first metal lines are connected with each other through at least one second metal line disposed on a light-shielding region corresponding to the black matrix in the display region. The contact points of the common electrode of the color film substrate, the first metal wire and the second metal wire are increased, and the uniformity of the voltage at each position of the common electrode of the color film substrate is further improved.
Preferably, the widths of the first metal line and the second metal line are smaller than the width of the light shielding region, so that the influence of the arrangement of the first metal line and the second metal line on the pixel aperture ratio in the color film substrate is avoided.
Preferably, the conductivity of the first metal line is greater than that of the common electrode, so that voltage loss on the first metal line is reduced, voltages obtained by the first metal line in different areas of the common electrode of the color film substrate are kept consistent, and uniform voltage at each position of the common electrode of the color film substrate is ensured.
Preferably, the material of the first metal wire is copper, aluminum or molybdenum; the common electrode is made of Indium Tin Oxide (ITO).
Preferably, the first metal line is connected to a common voltage input terminal, specifically:
and a third metal wire connected with the at least one first metal wire is also arranged on the black matrix at the edge of the substrate base plate, and the first metal wire is connected with a common voltage input end through the third metal wire.
Preferably, the third metal wire is a ring-shaped metal wire; or, the third metal wire is at least one strip-shaped metal wire.
Preferably, the common electrode is positioned on one side of the first metal wire, which faces away from the black matrix; or,
the common electrode is positioned between the first metal line and the black matrix.
On the other hand, the invention also provides a display device which comprises the color film substrate provided by any one of the technical schemes.
After the color film substrate and the array substrate provided by any technical scheme are connected in a box-to-box manner through the frame sealing adhesive doped with the gold balls, the gold balls can conduct and input the common voltage of the common electrode line on the array substrate to the first metal wire, and then the common voltage is conducted and input to different areas on the common electrode through the first metal wire, so that the voltage uniformity of all parts of the common electrode of the color film substrate is ensured; therefore, in the color film substrate provided by any of the above technical solutions, the voltage at each position of the common electrode of the color film substrate is uniform, so that the defects of flicker, crosstalk, uneven picture and the like of the picture displayed by the display panel due to uneven voltage on the common electrode of the color film substrate can be solved, and the display quality and the product yield of the display panel are improved.
Drawings
Fig. 1 is a schematic structural diagram of a color film substrate in the prior art;
fig. 2 is a schematic structural diagram of a color film substrate according to a first embodiment of the present invention:
fig. 3 is a schematic layout view of metal lines in a color filter substrate according to an embodiment of the present invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
Example one
Referring to fig. 2, the color film substrate provided in this embodiment includes: the liquid crystal display comprises a substrate base plate 1, a black matrix 2 formed on the substrate base plate 1 and a common electrode 3 arranged on one side of the black matrix 2, which is far away from the substrate base plate 1; at least one first metal wire 5 is arranged in a light shielding area 21 corresponding to the black matrix 2 in the display area of the color film substrate, the first metal wire is connected with a common voltage input end, and a plurality of points on each first metal wire are electrically connected with the common electrode 3 and the at least one first metal wire 5.
In the color film substrate provided by the invention, at least one first metal wire 5 connected with a common voltage input end is arranged on the shading area 21 corresponding to the black matrix 2 in the display area of the color film substrate, and a plurality of points on each first metal wire 5 are electrically connected with the common electrode 3. After the color film substrate and the array substrate provided by the invention are connected to each other by the frame sealing adhesive doped with the gold balls 6, the gold balls 6 can conduct the common electrode lines of the array substrate and the first metal lines 5 on the color film substrate, so that the common voltage is transmitted to the first metal lines 5 through the gold balls 6, and then the common voltage is transmitted to different areas of the common electrode 3 through a plurality of points on the first metal lines 5 which are electrically connected with the common electrode 3, thereby reducing the voltage loss of the common voltage in the transmission process on the common electrode 3, enabling the voltage at each part of the common electrode 3 to be uniform, and further solving the defects of flicker, crosstalk, uneven picture and the like of the picture displayed by the display panel caused by uneven voltage distribution on the common electrode 3 of the color film substrate.
Therefore, the voltage distribution on the common electrode 3 in the color film substrate provided by the invention is uniform, and the defects of flicker, crosstalk, uneven picture and the like of the picture displayed by the display panel can be solved.
The forming process of the first metal line 5 may specifically be:
step one, forming a black matrix 2 and a color filter layer 7 on a substrate base plate 1;
coating a metal layer on the black matrix 2 and the color filter layer 7;
and step three, etching and reserving the metal layer at the shading area 21 corresponding to the black matrix 2 in the display area, thereby forming the first metal line 5 in the color film substrate.
In a preferred embodiment, the width of the first metal line 5 is smaller than the width of the light-shielding region 21 corresponding to the black matrix 2, so that the first metal line 5 formed on the black matrix 2 is completely located in the light-shielding region 21 of the black matrix 2, and the pixel aperture ratio of the color filter substrate is not affected by the first metal line 5 exceeding the light-shielding region 21.
Referring to fig. 3, in some optional embodiments, a plurality of first metal lines 5 are disposed in a display region of the color film substrate, and the plurality of first metal lines 5 are disposed side by side to ensure that the first metal lines 5 are conducted with different regions of the common electrode 3 of the color film substrate; more specifically, two adjacent first metal lines 5 may also be connected by one or at least one second metal line 8. And each second metal wire 8 is arranged in the shading area corresponding to the black matrix 2, so as to ensure that the second metal wires 8 do not influence the pixel aperture opening ratio of the color film substrate. In addition, the arrangement of the second metal line 8 also increases the contact points of the common electrode of the color film substrate with the first metal line 5 and the second metal line 8, and further improves the uniformity of the voltage at each position of the common electrode 3 of the color film substrate.
Of course, the arrangement manner of the first metal line 5 and the second metal line 8 in the color filter substrate display area is not limited to the arrangement manner described above, and those skilled in the art may also determine the specific arrangement manner of the first metal line 5 and the second metal line 8 according to different display effect requirements.
Referring to fig. 2 and 3, in some alternative embodiments, a third metal line 4 connected to an end of at least one first metal line 5 is further disposed on the black matrix 2 at the edge of the substrate base plate 1, and the first metal line 5 is connected to the common voltage input terminal through the third metal line 4. After the color film substrate and the array substrate are connected in a box-to-box manner through the frame sealing adhesive doped with gold balls, the gold balls conduct the common electrode lines on the array substrate and the third metal lines 4 on the color film substrate, and the voltage of the first metal lines 5 on the color film substrate is conducted and input through the third metal lines 4. The gold balls are in contact with the third metal wire 4 in a large number, so that the connection stability of the gold balls and the third metal wire 4 is ensured, and the stability of voltage input to the third metal wire 4 by conducting through a common electrode wire is further ensured.
Optionally, the third metal line may be a ring-shaped metal line, as shown in fig. 2, or may be at least one strip-shaped metal line, or may be a metal line with another shape, as long as the third metal line 4 can conduct and input the voltage on the common electrode line to the first metal line 5 through the gold ball, and details are not repeated here.
Preferably, the electrical conductivity of the materials selected for the first metal line 5, the second metal line 8, and the third metal line 4 is greater than the electrical conductivity of the materials selected for the color film substrate common electrode 3, so as to ensure that the first metal line 5, the second metal line 8, and the third metal line 4 have better electrical conductivity with respect to the color film substrate common electrode 3, reduce voltage loss on the first metal line 5, the second metal line 8, and the third metal line 4, further keep voltages obtained by the first metal line 5 in different regions of the color film substrate common electrode 3 consistent, and ensure that the voltages at all the color film substrate common electrode 3 are uniform.
Specifically, the material of the first metal wire 5, the second metal wire 8 and the third metal wire 4 may be copper, aluminum or molybdenum; the common electrode 3 of the color filter substrate is made of Indium Tin Oxide (ITO). The ITO has a conductivity of about 1 to 5X 103S/cm, the conductivity of copper, aluminum or molybdenum is more than 5 multiplied by 104S/cm, it can be ensured that the first metal line 5, the second metal line 8, and the third metal line 4 made of copper, aluminum, or molybdenum have better conductivity with respect to the color film substrate common electrode 3, and further, it is ensured that the voltage loss on the first metal line 5, the second metal line 8, and the third metal line 4 is small, so that the voltage transmitted to each position of the color film substrate common electrode 3 through the first metal line 5 is uniform.
In each of the above embodiments, the common electrode 3 may be disposed on a side of the first metal line 5 away from the black matrix 2, or may be disposed between the first metal line 5 and the black matrix 2.
Example two
The embodiment provides a display panel, which comprises an array substrate and the color film substrate provided in the first embodiment, wherein the edges of the array substrate and the color film substrate are bonded through frame sealing glue doped with gold balls, and a common electrode line of the array substrate and a first metal line on the color film substrate are conducted through the gold balls in the frame sealing glue.
In the display panel provided in this embodiment, the array substrate and the color filter substrate provided in the first embodiment are connected to each other by the frame sealing adhesive doped with the gold balls 6, so that the gold balls 6 conduct the common electrode lines on the array substrate and the first metal lines 5 on the color filter substrate, the common voltage is transmitted to the first metal lines 5 through the gold balls 6, and then the voltages are transmitted to different regions of the common electrode 3 from a plurality of points on the first metal lines 5 electrically connected to the common electrode 3, so that the voltages at the various positions of the common electrode 3 of the color filter substrate are uniform, defects such as flicker, crosstalk, and uneven images of the display panel caused by uneven voltages on the common electrode 3 of the color filter substrate are solved, and the display quality of the display panel is improved.
In addition, in the display panel provided in this embodiment, spacers may be disposed in different light-shielding areas of the black matrix 2 to form a main spacer and an auxiliary spacer by using a height difference between the light-shielding areas of the black matrix 2 where the second metal lines 8 are disposed and the light-shielding areas of the black matrix 2 where the second metal lines 8 are not disposed, so as to support the array substrate.
EXAMPLE III
The embodiment provides a display device, which includes the color film substrate provided in the first embodiment.
After the color film substrate and the array substrate provided by the first embodiment are connected to each other by the frame sealing adhesive doped with the gold balls, the gold balls can conduct and input the common voltage on the common electrode line on the array substrate to the first metal wire, and then conduct and input the common voltage to different areas on the common electrode through the first metal wire, so that the voltage at each position of the common electrode of the color film substrate is ensured to be uniform; therefore, in the color film substrate provided by any of the above technical solutions, the voltage at each position of the common electrode of the color film substrate is uniform, so that the defects of flicker, crosstalk, uneven picture and the like of the picture displayed by the display panel due to uneven voltage on the common electrode of the color film substrate can be solved, and the display quality and the product yield of the display panel are improved.
Wherein, the display device can be: the display device comprises any product or component with a display function, such as a liquid crystal panel, electronic paper, an OLED panel, a mobile phone, a tablet personal computer, a television, a display, a notebook computer, a digital photo frame, a navigator and the like.
It will be apparent to those skilled in the art that various changes and modifications may be made in the present invention without departing from the spirit and scope of the invention. Thus, if such modifications and variations of the present invention fall within the scope of the claims of the present invention and their equivalents, the present invention is also intended to include such modifications and variations.
Claims (10)
1. A color filter substrate, comprising: the black matrix is arranged on one side of the black matrix, which is far away from the substrate base plate; the color film substrate is characterized in that at least one first metal wire is arranged in a light shielding area corresponding to the black matrix in a display area of the color film substrate, the at least one first metal wire is connected with a common voltage input end, and a plurality of points on each first metal wire are electrically connected with the common electrode.
2. The color filter substrate according to claim 1, wherein the first metal lines are a plurality of metal lines, and the plurality of metal lines are arranged side by side.
3. The color filter substrate according to claim 2, wherein any two adjacent first metal lines are connected to each other through at least one second metal line disposed in a light-shielding region corresponding to the black matrix in the display region.
4. The color filter substrate according to claim 3, wherein the widths of the first metal line and the second metal line are smaller than the width of the light-shielding region.
5. The color filter substrate according to claim 1, wherein the conductivity of the first metal line is greater than the conductivity of the common electrode.
6. The color filter substrate according to claim 5, wherein the first metal line is made of copper, aluminum or molybdenum; the common electrode is made of Indium Tin Oxide (ITO).
7. The color film substrate according to any one of claims 1 to 6, wherein the first metal line is connected to a common voltage input terminal, and specifically comprises:
and a third metal wire connected with the at least one first metal wire is also arranged on the black matrix at the edge of the substrate base plate, and the first metal wire is connected with a common voltage input end through the third metal wire.
8. The color filter substrate according to claim 7, wherein the third metal line is a ring-shaped metal line; or, the third metal wire is at least one strip-shaped metal wire.
9. The color film substrate according to any one of claims 1 to 6, wherein the common electrode is located on a side of the first metal line away from the black matrix; or,
the common electrode is positioned between the first metal line and the black matrix.
10. A display device comprising the color filter substrate according to any one of claims 1 to 9.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410344585.9A CN104155792A (en) | 2014-07-18 | 2014-07-18 | Color film substrate and display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201410344585.9A CN104155792A (en) | 2014-07-18 | 2014-07-18 | Color film substrate and display device |
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| CN104155792A true CN104155792A (en) | 2014-11-19 |
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| CN201410344585.9A Pending CN104155792A (en) | 2014-07-18 | 2014-07-18 | Color film substrate and display device |
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Cited By (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108873460A (en) * | 2018-07-18 | 2018-11-23 | 深圳市华星光电半导体显示技术有限公司 | Liquid crystal display panel |
| WO2021003908A1 (en) * | 2019-07-10 | 2021-01-14 | 深圳市华星光电半导体显示技术有限公司 | Multi-signal hva-type liquid crystal display panel |
| CN116400536A (en) * | 2023-06-08 | 2023-07-07 | 广州华星光电半导体显示技术有限公司 | Display panel and display device |
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| US20070109483A1 (en) * | 2005-11-17 | 2007-05-17 | Hun Jeoung | Liquid crystal display panel and fabricating method thereof |
| CN102789088A (en) * | 2012-08-03 | 2012-11-21 | 京东方科技集团股份有限公司 | Liquid crystal display panel and display device |
| CN103926757A (en) * | 2014-01-10 | 2014-07-16 | 厦门天马微电子有限公司 | TFT array substrate, display panel and display device |
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2014
- 2014-07-18 CN CN201410344585.9A patent/CN104155792A/en active Pending
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
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| US20070109483A1 (en) * | 2005-11-17 | 2007-05-17 | Hun Jeoung | Liquid crystal display panel and fabricating method thereof |
| CN102789088A (en) * | 2012-08-03 | 2012-11-21 | 京东方科技集团股份有限公司 | Liquid crystal display panel and display device |
| CN103926757A (en) * | 2014-01-10 | 2014-07-16 | 厦门天马微电子有限公司 | TFT array substrate, display panel and display device |
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN108873460A (en) * | 2018-07-18 | 2018-11-23 | 深圳市华星光电半导体显示技术有限公司 | Liquid crystal display panel |
| WO2020015121A1 (en) * | 2018-07-18 | 2020-01-23 | 深圳市华星光电半导体显示技术有限公司 | Liquid crystal panel |
| US11022850B2 (en) | 2018-07-18 | 2021-06-01 | Shenzhen China Star Optoelectronics Semiconductor Display Technology Co., Ltd. | Liquid crystal panel |
| WO2021003908A1 (en) * | 2019-07-10 | 2021-01-14 | 深圳市华星光电半导体显示技术有限公司 | Multi-signal hva-type liquid crystal display panel |
| CN116400536A (en) * | 2023-06-08 | 2023-07-07 | 广州华星光电半导体显示技术有限公司 | Display panel and display device |
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Application publication date: 20141119 |