CN114613336A - Display device - Google Patents
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- CN114613336A CN114613336A CN202210206345.7A CN202210206345A CN114613336A CN 114613336 A CN114613336 A CN 114613336A CN 202210206345 A CN202210206345 A CN 202210206345A CN 114613336 A CN114613336 A CN 114613336A
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
- G09G3/3208—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED] organic, e.g. using organic light-emitting diodes [OLED]
- G09G3/3275—Details of drivers for data electrodes
- G09G3/3291—Details of drivers for data electrodes in which the data driver supplies a variable data voltage for setting the current through, or the voltage across, the light-emitting elements
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- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/22—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources
- G09G3/30—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels
- G09G3/32—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters using controlled light sources using electroluminescent panels semiconductive, e.g. using light-emitting diodes [LED]
-
- G—PHYSICS
- G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
- G09G—ARRANGEMENTS OR CIRCUITS FOR CONTROL OF INDICATING DEVICES USING STATIC MEANS TO PRESENT VARIABLE INFORMATION
- G09G3/00—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes
- G09G3/20—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters
- G09G3/34—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source
- G09G3/36—Control arrangements or circuits, of interest only in connection with visual indicators other than cathode-ray tubes for presentation of an assembly of a number of characters, e.g. a page, by composing the assembly by combination of individual elements arranged in a matrix no fixed position being assigned to or needed to be assigned to the individual characters or partial characters by control of light from an independent source using liquid crystals
- G09G3/3611—Control of matrices with row and column drivers
- G09G3/3685—Details of drivers for data electrodes
- G09G3/3688—Details of drivers for data electrodes suitable for active matrices only
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- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Computer Hardware Design (AREA)
- General Physics & Mathematics (AREA)
- Theoretical Computer Science (AREA)
- Chemical & Material Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Control Of Indicators Other Than Cathode Ray Tubes (AREA)
Abstract
The invention discloses a display device, which comprises: a plurality of pixels, each of the pixels being connected to a scan line; a plurality of output data lines, each of the output data lines being connected to each of the pixels; a plurality of demultiplexers, each of the demultiplexers being configured to transmit a data signal supplied to a data input line to at least two output data lines among the plurality of output data lines; and first compensation signal lines connected to some of the output data lines one by one through a plurality of storage capacitors, respectively. The first compensation signal line and the second compensation signal line are respectively connected with a part of output data lines in the plurality of output data lines one by one through a plurality of storage capacitors and are used for compensating the fluctuation of a coupling capacitor formed between two adjacent output data lines to the voltage of the output data lines. Therefore, the voltage in the pixel is kept stable, and the image quality is guaranteed.
Description
Technical Field
The invention relates to the technical field of display panels, in particular to a display device.
Background
With the increasing demand of people for precise display and the increasing high resolution of display panels, in the current Active Matrix (AM) display, including AMLCD, AMOLED, AM-MiniLED, AM-MicroLED, etc.,
these types of displays each include a scan driver supplying a scan signal through a scan line and a data driver supplying a data signal through a data line. The increase in resolution of the display device means an increase in the number of data lines and data driving circuits, which leads to an increase in cost. When signals are input to the adjacent data lines, the pixel switch tubes corresponding to the other row of data lines are not closed, so that the data voltage stored in the floating data line is changed due to the capacitive coupling between the adjacent data lines, thereby affecting the pixel voltage and causing the image quality to be reduced or distorted.
Disclosure of Invention
The present invention is directed to a display device, which can solve the problem that the capacitive coupling between adjacent data lines causes the data voltage stored in a floating data line to change, thereby affecting the pixel voltage and causing the image quality to be degraded or distorted.
According to an aspect of the present invention, there is provided a display device, the device including: a plurality of pixels, each of the pixels being connected to a scan line; a plurality of output data lines, each of the output data lines being connected to each of the pixels; a plurality of demultiplexers, each of the demultiplexers being configured to transmit a data signal supplied to a data input line to at least two output data lines among the plurality of output data lines; and the first compensation signal lines are respectively connected with a part of the output data lines one by one through a plurality of storage capacitors and are used for compensating the fluctuation of the coupling capacitors formed between two adjacent output data lines to the voltage of the output data lines.
Further, the display device further includes: and the second compensation signal lines are respectively connected with the other part of the output data lines one by one through a plurality of storage capacitors and are used for compensating the fluctuation of the coupling capacitors formed between two adjacent output data lines to the voltage of the output data lines.
Further, the signal transmitted by the first compensation signal line is opposite to the signal transmitted by the second compensation signal line.
Further, the part of the output data lines connected with the first compensation signal line and the other part of the output data lines connected with the second compensation signal line are arranged in a staggered mode.
Furthermore, each demultiplexer comprises at least two switching tubes, and each output data line is controlled by one switching tube.
Further, in each demultiplexer, different switching tubes are respectively controlled by different control signals.
Further, the different control signal working times do not overlap each other in time domain.
Further, the demultiplexer transmits the data signal supplied to the data input line to three output data lines or six output data lines among the plurality of output data lines.
Furthermore, the capacitance value of each storage capacitor is the same as the capacitance value of the coupling capacitor formed by the output data line connected with the storage capacitor and the adjacent output data line.
Further, the coupling direction of each storage capacitor is opposite to the coupling direction of the coupling capacitor formed by the output data line connected with the storage capacitor and the adjacent output data line.
The invention has the advantages that the first compensation signal line and the second compensation signal line are respectively connected with a part of output data lines in the plurality of output data lines one by one through a plurality of storage capacitors and are used for compensating the fluctuation of the coupling capacitor formed between two adjacent output data lines to the voltage of the output data lines. Therefore, the voltage in the pixel is kept stable, and the image quality is guaranteed.
Drawings
In order to more clearly illustrate the technical solutions in the embodiments of the present invention, the drawings needed to be used in the description of the embodiments will be briefly introduced below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and it is obvious for those skilled in the art to obtain other drawings based on these drawings without creative efforts.
Fig. 1 is a schematic structural diagram of a display device according to an embodiment of the present invention;
fig. 2 is a timing diagram provided by an embodiment of the invention.
Detailed Description
The technical solution in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings in the embodiments of the present invention. It is to be understood that the described embodiments are merely exemplary of the invention, and not restrictive of the full scope of the invention. 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.
In the description of the present invention, it should be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly and may be, for example, fixedly connected, detachably connected, or integrally connected; may be mechanically, electrically or may be in communication with each other; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
Fig. 1 is a schematic structural diagram of a display device according to an embodiment of the present invention. The display device includes: a plurality of pixels 10, a plurality of output data lines 20, a first compensation signal line BC1, a second compensation signal line BC2, and a plurality of demultiplexers 30.
Illustratively, a plurality of pixels 10 are connected to the scan line 50 for each of the pixels 10, and a plurality of output data lines 20 are connected to each of the pixels 10 for each of the output data lines 20. A plurality of demultiplexers 30 each of the demultiplexers 30 is configured to transmit a data signal supplied to a data input line to at least two output data lines 20 of the plurality of output data lines 20. The first compensation signal lines BC1 are respectively connected to some of the output data lines 20 one by one via a plurality of storage capacitors 40, and are used for compensating for fluctuations of the voltage of the output data lines 20 caused by coupling capacitors formed between two adjacent output data lines 20. For example, the demultiplexer 30 is D1 and D2 in fig. 1, and the coupling capacitance formed between D1-1 and D1-2. The output data lines are D1-1, D1-2, D1-3, D2-1, D2-2 and D2-3.
Illustratively, each of the demultiplexers 30 includes at least two switching tubes 31, and each of the output data lines 20 is controlled by one switching tube 31. For example, in some embodiments, there are 3 output data lines 20, that is, the demultiplexer 30 is a 1: 3 demultiplexer 30, the number of the corresponding switch pipes 31 is also 3, and one switch pipe 31 is disposed on each output data line 20 to control the output data line 20 to be turned on or off.
Illustratively, in each of the demultiplexers 30, different switching tubes 31 are respectively controlled by different control signals 60. In each of the demultiplexers 30, different switching tubes 31 are controlled by different control signals 60, respectively. As shown in fig. 2, the different control signals 60 do not overlap in time domain. The transmitted signals of the first compensation signal line BC1 and the second compensation signal line BC2 are opposite, and also the scan line 50 is connected to the pixel 10. In fig. 1, three control signals 60 are included, and the three control signals 60 are Mux1, Mux2, and Mux3, respectively.
Illustratively, the signal transmitted by the first compensation signal line BC1 is the inverse of the signal transmitted by the second compensation signal line BC 2.
Illustratively, the part of the output data lines 20 connected by the first compensation signal line BC1 and the other part of the output data lines 20 connected by the second compensation signal line BC2 are arranged in a staggered manner. For example, all the output data lines 20 may be divided into odd columns and even columns, and in some other embodiments, the odd columns are connected to the first compensation signal line BC1 through the storage capacitor 40, and the even columns are connected to the second compensation signal line BC2 through the storage capacitor 40.
Illustratively, the demultiplexer 30 transmits data signals supplied to the data input lines to three output data lines 20 or six output data lines 20 among the plurality of output data lines 20.
Illustratively, the capacitance value of each storage capacitor 40 is the same as the capacitance value of the coupling capacitor formed by the output data line 20 connected with the storage capacitor and the adjacent output data line 20. The coupling direction of each storage capacitor 40 is opposite to the coupling direction of the coupling capacitor formed by the output data line 20 connected with the storage capacitor and the adjacent output data line 20. This is intended to better maintain the voltage of the pixel 10 stable.
Illustratively, the demultiplexer 30 transmits data signals supplied to the data input lines to three output data lines 20 or six output data lines 20 among the plurality of output data lines 20.
The first compensation signal line BC1 and the second compensation signal line BC2 are respectively connected to a part of the output data lines 20 one by one through the plurality of storage capacitors 40, and are used for compensating for the fluctuation of the voltage of the output data lines 20 caused by the coupling capacitor formed between two adjacent output data lines 20. Thereby allowing the voltage in the pixel 10 to remain stable and the image quality to be true.
On the other hand, in other embodiments the display device includes: a plurality of pixels 10, a plurality of output data lines 20, a first compensation signal line BC1, and a plurality of demultiplexers 30.
Illustratively, a plurality of pixels 10 are connected to the scan line 50 for each of the pixels 10, and a plurality of output data lines 20 are connected to each of the pixels 10 for each of the output data lines 20. A plurality of demultiplexers 30 each of the demultiplexers 30 is configured to transmit a data signal supplied to a data input line to at least two output data lines 20 of the plurality of output data lines 20. The first compensation signal lines BC1 are respectively connected to some of the output data lines 20 one by one via a plurality of storage capacitors 40, and are used for compensating for fluctuations of the voltage of the output data lines 20 caused by coupling capacitors formed between two adjacent output data lines 20.
Illustratively, each of the demultiplexers 30 includes at least two switching tubes 31, and each of the output data lines 20 is controlled by one switching tube 31. For example, in some embodiments, there are 3 output data lines 20, that is, the demultiplexer 30 is a 1: 3 demultiplexer 30, the number of the corresponding switch pipes 31 is also 3, and one switch pipe 31 is disposed on each output data line 20 to control the output data line 20 to be turned on or off.
Illustratively, in each of the demultiplexers 30, different switching tubes 31 are respectively controlled by different control signals 60. In each of the demultiplexers 30, different switching tubes 31 are controlled by different control signals 60, respectively. The different control signals 60 do not overlap in time domain. In fig. 1, three control signals 60 are included, and the three control signals 60 are Mux1, Mux2, and Mux3, respectively.
Illustratively, the demultiplexer 30 transmits data signals supplied to the data input lines to three output data lines 20 or six output data lines 20 among the plurality of output data lines 20.
Illustratively, the capacitance value of each storage capacitor 40 is the same as the capacitance value of the coupling capacitor formed by the output data line 20 connected with the storage capacitor and the adjacent output data line 20. The coupling direction of each storage capacitor 40 is opposite to the coupling direction of the coupling capacitor formed by the output data line 20 connected with the storage capacitor and the adjacent output data line 20. This is intended to better maintain the voltage of the pixel 10 stable. When there is only the first compensation signal line BC1, the odd-numbered columns may be connected to the first compensation signal line BC1 through the storage capacitor 40 or the even-numbered columns may be connected to the first compensation signal line BC1 through the storage capacitor 40, as required by the arrangement of the display device.
Illustratively, the demultiplexer 30 transmits data signals supplied to the data input lines to three output data lines 20 or six output data lines 20 among the plurality of output data lines 20.
The first compensation signal lines are respectively connected with a part of output data lines in the plurality of output data lines one by one through a plurality of storage capacitors and are used for compensating the fluctuation of the coupling capacitors formed between two adjacent output data lines to the voltage of the output data lines. Therefore, the voltage in the pixel is kept stable, and the image quality is guaranteed.
In addition, the display device provided by the embodiment of the invention can be applied to equipment such as a smart phone and a tablet personal computer. Specifically, the display device may further include an RF circuit for receiving and transmitting electromagnetic waves, and performing interconversion between the electromagnetic waves and electrical signals, so as to communicate with a communication network or other devices. The RF circuitry may include various existing circuit elements for performing these functions, such as antennas, radio frequency transceivers, digital signal processors, encryption/decryption chips, Subscriber Identity Module (SIM) cards, memory, and so forth. The RF circuitry may communicate with various networks, such as the internet, an intranet, a wireless network, or with other devices over a wireless network. The wireless network may comprise a cellular telephone network, a wireless local area network, or a metropolitan area network. The Wireless network may use various Communication standards, protocols, and technologies, including, but not limited to, Global System for Mobile Communication (GSM), Enhanced Data GSM Environment (EDGE), Wideband Code Division Multiple Access (WCDMA), Code Division Multiple Access (CDMA), Time Division Multiple Access (TDMA), Wireless Fidelity (Wi-Fi) (e.g., Institute of Electrical and Electronics Engineers (IEEE) standard IEEE802.11 a, IEEE802.11 b, IEEE802.11g, and/or IEEE802.11 n), Voice over Internet Protocol (VoIP), world wide mail Access (Microwave Access for micro), wimax-1, other suitable short message protocols, and any other suitable Protocol for instant messaging, and may even include those protocols that have not yet been developed.
The display device may also include a power supply (e.g., a battery) to power the various components, which in some embodiments may be logically coupled to the processor via a power management system to manage charging, discharging, and power consumption via the power management system. The power supply may also include any component of one or more dc or ac power sources, recharging systems, power failure detection circuitry, power converters or inverters, power status indicators, and the like.
Although not shown, the display device may further include a camera (e.g., a front camera, a rear camera), a bluetooth module, and the like, which are not described in detail herein.
The foregoing detailed description is directed to a display panel provided by an embodiment of the present invention, and the principles and embodiments of the present invention are described herein by using specific examples, which are merely used to help understand the method and the core concept of the present invention; meanwhile, for those skilled in the art, according to the idea of the present invention, there may be variations in the specific embodiments and the application scope, and in summary, the content of the present specification should not be construed as a limitation to the present invention.
Claims (10)
1. A display device, comprising:
a plurality of pixels, each of the pixels being connected to a scan line;
a plurality of output data lines, each of the output data lines being connected to each of the pixels;
a plurality of demultiplexers, each of the demultiplexers being configured to transmit a data signal supplied to a data input line to at least two output data lines among the plurality of output data lines; and
the first compensation signal lines are respectively connected with a part of the output data lines one by one through a plurality of storage capacitors and are used for compensating the fluctuation of the coupling capacitors formed between two adjacent output data lines to the voltage of the output data lines.
2. The display device according to claim 1, further comprising:
and the second compensation signal lines are respectively connected with the other part of the output data lines one by one through a plurality of storage capacitors and are used for compensating the fluctuation of the coupling capacitors formed between two adjacent output data lines to the voltage of the output data lines.
3. The display device according to claim 2, wherein the first compensation signal line transmits a signal in an opposite direction to a signal transmitted by the second compensation signal line.
4. The display device according to claim 3, wherein the part of the output data lines to which the first compensation signal lines are connected and the other part of the output data lines to which the second compensation signal lines are connected are arranged in a staggered manner.
5. The display device according to any of claims 1 to 4, wherein each demultiplexer comprises at least two switching tubes, and each output data line is controlled by one switching tube.
6. The display device according to claim 5, wherein in each demultiplexer, different switching tubes are respectively controlled by different control signals.
7. The display device according to claim 6, wherein the different control signal operation times do not overlap each other in a time domain.
8. The display device according to claim 1, wherein the demultiplexer transmits the data signal supplied to the data input line to three output data lines or six output data lines among the plurality of output data lines.
9. The display device according to claim 1, wherein each storage capacitor has a capacitance value equal to a capacitance value of a coupling capacitor formed by the connected output data line and an adjacent output data line.
10. The display device according to claim 1, wherein each of the storage capacitors is coupled in a direction opposite to a coupling direction of a coupling capacitor formed by the connected output data line and an adjacent output data line.
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210206345.7A CN114613336B (en) | 2022-03-01 | 2022-03-01 | Display device |
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| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN202210206345.7A CN114613336B (en) | 2022-03-01 | 2022-03-01 | Display device |
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| CN114613336A true CN114613336A (en) | 2022-06-10 |
| CN114613336B CN114613336B (en) | 2023-07-25 |
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| CN202210206345.7A Active CN114613336B (en) | 2022-03-01 | 2022-03-01 | Display device |
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| CN1933688A (en) * | 2005-09-15 | 2007-03-21 | 三星Sdi株式会社 | Organic electroluminescent display device |
| CN101312014A (en) * | 2007-05-25 | 2008-11-26 | 群康科技(深圳)有限公司 | Liquid crystal display device and driving method thereof |
| CN107301850A (en) * | 2017-07-27 | 2017-10-27 | 南京中电熊猫平板显示科技有限公司 | Demultiplexing circuitry, liquid crystal display device and capacitance compensation method |
| CN109817146A (en) * | 2019-03-08 | 2019-05-28 | 京东方科技集团股份有限公司 | A kind of display panel, display device and driving method |
| CN110148384A (en) * | 2019-06-28 | 2019-08-20 | 上海天马有机发光显示技术有限公司 | A kind of driving method of array substrate, display panel and pixel-driving circuit |
| CN110716658A (en) * | 2018-07-12 | 2020-01-21 | 乐金显示有限公司 | Display device and driving method thereof |
| CN110853576A (en) * | 2019-11-20 | 2020-02-28 | 京东方科技集团股份有限公司 | Display substrate and display device |
| CN114067751A (en) * | 2020-08-03 | 2022-02-18 | 三星显示有限公司 | Display device |
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2022
- 2022-03-01 CN CN202210206345.7A patent/CN114613336B/en active Active
Patent Citations (8)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN1933688A (en) * | 2005-09-15 | 2007-03-21 | 三星Sdi株式会社 | Organic electroluminescent display device |
| CN101312014A (en) * | 2007-05-25 | 2008-11-26 | 群康科技(深圳)有限公司 | Liquid crystal display device and driving method thereof |
| CN107301850A (en) * | 2017-07-27 | 2017-10-27 | 南京中电熊猫平板显示科技有限公司 | Demultiplexing circuitry, liquid crystal display device and capacitance compensation method |
| CN110716658A (en) * | 2018-07-12 | 2020-01-21 | 乐金显示有限公司 | Display device and driving method thereof |
| CN109817146A (en) * | 2019-03-08 | 2019-05-28 | 京东方科技集团股份有限公司 | A kind of display panel, display device and driving method |
| CN110148384A (en) * | 2019-06-28 | 2019-08-20 | 上海天马有机发光显示技术有限公司 | A kind of driving method of array substrate, display panel and pixel-driving circuit |
| CN110853576A (en) * | 2019-11-20 | 2020-02-28 | 京东方科技集团股份有限公司 | Display substrate and display device |
| CN114067751A (en) * | 2020-08-03 | 2022-02-18 | 三星显示有限公司 | Display device |
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