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公开(公告)号：US20250078749A1
公开(公告)日：2025-03-06
申请号：US18558143
申请日：2022-11-24
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Ying HAN , Pan XU , Xing ZHANG , Chengyuan LUO , Donghui ZHAO , Guangshuang LV , Cheng XU
IPC: G09G3/3233
Abstract: Pixel circuit, driving method, display substrate, panel and device are disclosed. The pixel circuit includes light-emitting element, and pixel driving circuit including driving circuit, data writing circuit and compensation control circuit; the data writing circuit writes data voltage into control end of driving circuit under control of write control signal in data writing phase; the compensation control circuit writes reference voltage into the control end of driving circuit under control of compensation control signal in compensation phase; the driving circuit is electrically connected to the light-emitting element, and is configured to drive the light-emitting element; the data writing phase does not overlap with the compensation phase. The threshold voltage compensation process does not occupy data writing time in timing, potential of source electrode of the driving transistor included in the driving circuit can be charged to theoretical target potential, which is applicable to display products with high refresh rate.
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公开(公告)号：US20250008790A1
公开(公告)日：2025-01-02
申请号：US18277228
申请日：2022-11-30
Applicant: BOE Technology Group Co., Ltd.
Inventor： Xing ZHANG , Pan XU , Ying HAN , Chengyuan LUO , Donghui ZHAO , Guangshuang LV , Cheng XU
IPC: H10K59/131
Abstract: A display panel and a display apparatus are provided, the display panel includes a substrate and a drive circuit layer, the drive circuit layer includes a pixel drive circuit (PE) and a first scan signal line (G1), the pixel drive circuit is electrically connected with the first scan signal line (G1), and the first scan signal lines (G1) connected with adjacent rows of pixel drive circuits are electrically isolated; the drive circuit layer further includes a first signal line located in a non-display region (AA′) and a second signal line corresponding to the first signal line, the first signal line is configured to supply a signal to the first scan signal line (G1), an orthographic projection of the first signal line on the substrate at least partially overlaps an orthographic projection of the corresponding second signal line on the substrate.
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公开(公告)号：US20240282862A1
公开(公告)日：2024-08-22
申请号：US18024990
申请日：2022-03-31
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Fengjuan LIU , Jianye ZHANG , Yuhang LU , Hongda SUN , Pan XU
IPC: H01L29/786
CPC classification number: H01L29/7869 , H01L29/78645
Abstract: A thin film transistor including: a base substrate, and an active layer and a gate on the base substrate, where the active layer includes a first part and a second part, a conductivity of the second part is greater than a conductivity of the first part; an orthographic projection of the gate on the base substrate covers an orthographic projection of the first part on the base substrate, and the orthographic projection of the gate on the base substrate does not overlap an orthographic projection of the second part on the base substrate; and the first part includes a plurality of first sub-parts, and two sides of any one first sub-part in a trend direction of the active layer are each connected to the second part.
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公开(公告)号：US20240049525A1
公开(公告)日：2024-02-08
申请号：US17753513
申请日：2021-03-25
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Xing ZHANG , Zhan GAO , Yicheng LIN , Pan XU , Ying HAN , Guoying WANG , Dacheng ZHANG
IPC: H10K59/126 , H10K59/38 , H10K59/131 , H10K59/80
CPC classification number: H10K59/126 , H10K59/38 , H10K59/131 , H10K59/87
Abstract: A display substrate and a display device are provided. The display substrate includes a base substrate and a light-shielding layer. The base substrate includes a display region including repeating units, each repeating unit includes a transparent region and a pixel region, the pixel region includes sub-pixels, each sub-pixel includes a sub-pixel driving circuit and a light-emitting element, and the light-emitting element includes a first electrode, a second electrode, and a light-emitting layer located between the first electrode and the second electrode. The light-shielding layer is located on a side of the sub-pixel driving circuit close to the base substrate, at least part of an orthographic projection of the light-shielding layer on a main surface of the base substrate overlaps with an orthographic projection of the sub-pixel driving circuit on the main surface of the base substrate, and the light-shielding layer is connected with the second electrode.
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公开(公告)号：US20230158769A1
公开(公告)日：2023-05-25
申请号：US17630670
申请日：2021-01-25
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Zhan GAO , Xing ZHANG , Pan XU , Wei LIU , Ying HAN , Guoying WANG , Yicheng LIN , Tangxiang WANG
CPC classification number: B32B3/08 , B32B7/027 , B32B2457/08 , B32B2457/20
Abstract: The present disclosure relates to the technical field of display, and provides a bearing substrate, a binding assembly, and a binding method thereof. The bearing substrate may be bound to an integrated substrate. A thermal expansion coefficient of the bearing substrate is greater than a thermal expansion coefficient of the integrated substrate. The integrated substrate includes a plurality of second binding terminals distributed at equal intervals in a same direction. The bearing substrate includes a plurality of first binding terminal sets distributed at equal intervals in a first direction, and each of the first binding terminal sets includes a plurality of first binding terminals distributed at equal intervals in the first direction for binding with the plurality of the second binding terminals one-to-one.
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Patent Agency Ranking
公开(公告)号：US20230115948A1
公开(公告)日：2023-04-13
申请号：US17914929
申请日：2021-02-02
Applicant: BOE Technology Group Co., Ltd.
Inventor： Pan XU , Yongqian LI , Yicheng LIN , Ling WANG , Guoying WANG , Xing ZHANG , Ying HAN , Dacheng ZHANG , Lang LIU , Chen XU
IPC: H10K59/126 , H10K71/00
Abstract: The present disclosure provides an array substrate, a display panel, a display device and a manufacturing method, for solving the problems in the prior art that the array substrate is larger in number of circuits, the area needed for punching is larger, and the high pixel resolution cannot be achieved easily. The array substrate comprises: an interlayer dielectric layer located at the side of the active layer distant from the buffer layer, the interlayer dielectric layer being provided with a via hole, the via hole comprising a first part and a second part, the orthographic projection of the first part on the base substrate being in contact with the orthographic projection of the second part on the base substrate, the first part of the via hole penetrating through the interlayer dielectric layer and the buffer layer and exposing part of the shading layer, and the second part penetrating through the interlayer dielectric layer and exposing at least part of the active layer; and a source/drain layer located at the side of the interlayer dielectric layer distant from the active layer.
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公开(公告)号：US20220359635A1
公开(公告)日：2022-11-10
申请号：US17416522
申请日：2020-12-29
Applicant: BOE Technology Group Co., Ltd.
Inventor： Ying HAN , Ling WANG , Yicheng LIN , Pan XU , Xing ZHANG , Guoying WANG
Abstract: Provided is a display substrate, including: a substrate, and multiple light-emitting units and multiple light-detecting units located on a substrate. At least one light-emitting unit includes a light-emitting element and a pixel driving circuit coupled with the light-emitting element, and at least one light-detecting unit includes an optical sensing element and a light-emitting detection circuit coupled with an optical sensing element; an optical sensing element is located on one side of a light-emitting detection circuit and a pixel driving circuit away from a substrate and between a light-emitting element and a substrate; the light-emitting element emits light from a side away from the substrate, and a light transmittance region is provided on one side of the light-emitting element facing the optical sensing element.
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公开(公告)号：US20220102460A1
公开(公告)日：2022-03-31
申请号：US17298032
申请日：2020-10-28
Applicant: BOE Technology Group Co., Ltd.
Inventor： Pan XU , Yicheng LIN , Ling WANG , Guoying WANG , Xing ZHANG , Ying HAN
Abstract: A display substrate and a manufacturing method therefor, and a display device. The display substrate includes multiple sub-pixels, each sub-pixel including a light-emitting region and a non-light-emitting region, and a driving circuit being provided in each sub-pixel. The driving circuit includes a storage capacitor and multiple transistors. The transistors include a switching transistor, a driving transistor, and a sensing transistor. For each sub-pixel, the transistors are located in the non-light-emitting region, the storage capacitor is a transparent capacitor, and the orthographic projection of the storage capacitor on a substrate overlaps the light-emitting region. The first electrode of the storage capacitor is arranged on the same layer as the active layer of the transistors, and arranged on a different layer from the source and drain electrodes of the transistors, and the second electrode of the storage capacitor is located on the side of the first electrode close to the substrate.
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公开(公告)号：US20210327343A1
公开(公告)日：2021-10-21
申请号：US16621937
申请日：2019-03-27
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Dongxu HAN , Tieshi WANG , Zhongyuan WU , Yongqian LI , Pan XU , Jinxia HU
IPC: G09G3/3225
Abstract: Brightness compensation method and apparatus for pixel point are provided. The compensation method includes measurement processes of N times, N≥2. Each measurement process includes: obtaining images displayed on the display screen under different gray-scale signals, and extracting brightness of pixel points in the images; calculating difference parameters between brightness of the pixel points and brightness of the reference pixel point under the different gray-scale signals; fitting the difference parameters of the pixel points with initial brightness of the pixel points under the different gray-scale signals, to obtain initial brightness-difference parameter curves of the pixel points; calculating compensation parameters of the pixel points; during an (i)th measurement process, i=2 to N, images displayed on the display screen under the different gray-scale signals are obtained by compensating the initial brightness of the pixel points under the different gray-scale signals based on the compensation parameters obtained during an (i−1)th measurement process.
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公开(公告)号：US20210166623A1
公开(公告)日：2021-06-03
申请号：US16331673
申请日：2018-08-16
Applicant: BOE TECHNOLOGY GROUP CO., LTD.
Inventor： Cuili GAI , Yicheng LIN , Baoxia ZHANG , Ling WANG , Quanhu LI , Pan XU
IPC: G09G3/3233
Abstract: A pixel circuit includes a data writing sub-circuit inputs a signal input via a second signal terminal to a compensating sub-circuit and a driving sub-circuit under control of a signal from a first signal terminal, the compensating sub-circuit compensates a threshold voltage of the driving sub-circuit according to a signal output from the data writing sub-circuit under control of a signal from a third signal terminal, a light-emitting control sub-circuit inputs a signal from a first voltage terminal to the driving sub-circuit and the compensating sub-circuit under control of a signal from a fourth signal terminal, the driving sub-circuit configured to generate and input a driving current to a light-emitting sub-circuit according to a signal output from the light-emitting control sub-circuit and a signal output from the data writing sub-circuit, and the light-emitting sub-circuit configured to emit light according to the driving current under control of a second voltage terminal.
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