公开(公告)号：US12211447B2

公开(公告)日：2025-01-28

申请号：US17765045

申请日：2021-03-23

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Guangliang Shang ,  Jiangnan Lu ,  Long Han ,  Li Wang ,  Libin Liu ,  Xinshe Yin ,  Shiming Shi

IPC: G09G3/3266 ,  G11C19/28

Abstract: A shift register circuit includes a first control sub-circuit and a first output sub-circuit. The first control sub-circuit is configured to: adjust a voltage of a first node to a turn-on voltage due to an influence of a first direct current voltage signal from a first clock signal terminal, an initial voltage signal from an initial signal terminal and a second direct current voltage signal from a second clock signal terminal; and maintain the voltage of the first node at the turn-on voltage due to an influence of a first clock signal from the first clock signal terminal and a second clock signal from the second clock signal terminal. The first output sub-circuit is configured to be turned on under a control of the turn-on voltage of the first node to transmit a first voltage signal from a first voltage terminal to a signal output terminal.

公开(公告)号：US12205506B2

公开(公告)日：2025-01-21

申请号：US17781988

申请日：2021-03-24

Applicant: BOE Technology Group Co., Ltd.

Inventor： Jiangnan Lu ,  Guangliang Shang ,  Libin Liu ,  Long Han ,  Yu Feng

IPC: G09G3/20 ,  G11C19/28

Abstract: A display substrate and a display device are provided. The display substrate includes a shift register unit, a first clock signal line and a first power line, the shift register unit includes a charge pump circuit, and the charge pump circuit includes a first capacitor, a first transistor and a second capacitor. The charge pump circuit is electrically connected with a first input node and a first node, respectively. A first electrode plate of the first capacitor is connected with the first clock signal line, a second electrode plate of the first capacitor is connected with the first input node, a first electrode plate of the second capacitor is connected with the first power line, a second electrode plate of the second capacitor is connected with the first node, a gate electrode of the first transistor is connected with a first electrode or a second electrode of the first transistor.

公开(公告)号：US12165581B2

公开(公告)日：2024-12-10

申请号：US17637815

申请日：2021-04-23

Applicant: BOE Technology Group Co., Ltd.

Inventor： Libin Liu ,  Li Wang ,  Guangliang Shang ,  Yu Feng ,  Long Han ,  Baoyun Wu ,  Shiming Shi

IPC: G09G3/3233

Abstract: A pixel circuit, a driving method therefor and a display apparatus are provided. The pixel circuit includes a driving sub-circuit, a write sub-circuit, a compensation sub-circuit, a reset sub-circuit, a first light-emitting control sub-circuit, a second light-emitting control sub-circuit, a leak-proof sub-circuit, a storage sub-circuit and a light-emitting element. The reset sub-circuit is configured to reset a fourth node under control of a signal of a light-emitting control signal terminal and reset a fifth node under control of a signal of a reset control signal terminal. The compensation sub-circuit is configured to compensate a threshold voltage of the driving sub-circuit to the fifth node under the control of a signal of a first scanning signal terminal. The leak-proof sub-circuit is configured to write a signal of the fifth node into a first node under control of a signal of a second scanning signal terminal.

公开(公告)号：US20240355294A1

公开(公告)日：2024-10-24

申请号：US18027254

申请日：2022-06-24

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xinbin Han ,  Shiming Shi ,  Libin Liu ,  Guangliang Shang ,  Rui Xu

IPC: G09G3/3258

CPC classification number: G09G3/3258 ,  G09G2300/0819 ,  G09G2300/0861 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2320/0247 ,  G09G2340/0435

Abstract: The present disclosure provides a display control method, a display control unit and a display device. A display period includes a refresh stage and a maintaining stage arranged one after another in a case where a refresh rate of the display panel is decreased from a first refresh rate to a second refresh rate, the maintaining stage includes one or more light-emission control time periods independent of each other, and the display control method includes: at the maintaining stage, stopping receiving, by a plurality of pixel circuits arranged in rows in the display panel, a corresponding data voltage sequentially under the control of a corresponding written-in control signal.

公开(公告)号：US12089446B2

公开(公告)日：2024-09-10

申请号：US17599007

申请日：2021-02-25

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yuhan Qian ,  Libin Liu ,  Jiangnan Lu ,  Mei Li ,  Shiming Shi ,  Jie Zhang

IPC: H01L29/08 ,  H10K50/15 ,  H10K50/16 ,  H10K50/17 ,  H10K59/121 ,  H10K59/131 ,  H10K71/00 ,  H10K59/12

CPC classification number: H10K59/1213 ,  H10K50/15 ,  H10K50/16 ,  H10K50/171 ,  H10K59/1216 ,  H10K59/131 ,  H10K71/00 ,  H10K59/1201

Abstract: A display substrate includes: a base substrate; a light-emitting unit in each pixel region and including a first electrode, an organic light-emitting layer, and a second electrode sequentially disposed in a direction away from the base substrate; an auxiliary conductive layer between the light-emitting unit and the base substrate; a pixel circuit in each pixel region and including a driving transistor. The auxiliary conductive layer is on a side of the pixel circuit away from the base substrate, the second electrode has a portion extending out of the pixel region and coupling to the auxiliary conductive layer through a via hole not overlapping the pixel region, the auxiliary conductive layer is insulated and spaced apart from the first electrode and has a mesh or chain shape, and a material of the auxiliary conductive layer is the same as a material of the first and second electrodes of the driving transistor.

公开(公告)号：US11978396B2

公开(公告)日：2024-05-07

申请号：US17636374

申请日：2021-03-24

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Libin Liu ,  Li Wang ,  Yu Feng ,  Lujiang Huangfu

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/08 ,  G09G2330/021

Abstract: Embodiments of the present disclosure provide an array substrate and related display panel and display device. An array substrate, comprises: a substrate; a plurality of sub-pixels arranged in multiple rows and multiple columns provided on the substrate, at least one of the plurality of sub-pixels comprising pixel circuits, each of the pixel circuits comprising a driving circuit, a voltage stabilizing circuit, and a driving reset circuit, wherein the driving circuit is configured to provide a driving current to a light-emitting device, the voltage stabilizing circuit comprises a first voltage stabilizing circuit and a second voltage stabilizing circuit, the first voltage stabilizing circuit is configured to conduct a control terminal of the driving circuit with the driving reset circuit, the second voltage stabilizing circuit is configured to stabilize a voltage at the control terminal of the driving circuit, and the driving reset circuit is configured to reset the control terminal of the driving circuit.

公开(公告)号：US11961582B2

公开(公告)日：2024-04-16

申请号：US17828425

申请日：2022-05-31

Applicant: BOE Technology Group Co., Ltd.

Inventor： Guangliang Shang ,  Xinshe Yin ,  Qian Yang ,  Libin Liu ,  Shiming Shi ,  Dawei Wang

IPC: G09G3/36 ,  G09G3/20 ,  G11C7/10 ,  G11C7/14 ,  G11C7/22 ,  G11C19/28

CPC classification number: G11C7/1036 ,  G11C7/1063 ,  G11C7/109 ,  G11C7/14 ,  G11C7/222 ,  G11C19/28

Abstract: Embodiments of the present disclosure disclose a shift register unit, a driving method thereof, and a device. The shift register unit includes an input circuit, a node control circuit, a first control output circuit, a second control output circuit and an output circuit. By providing the first control output circuit and the second control output circuit, the first control output circuit and the second control output circuit may operate alternately, so that the first control output circuit and the second control output circuit may have time for characteristics recovery respectively, thus improving the service life and output stability of the shift register unit.

公开(公告)号：US20240112636A1

公开(公告)日：2024-04-04

申请号：US18262598

申请日：2022-08-24

Applicant: BOE Technology Group Co., Ltd.

Inventor： Zhenzhen Shan ,  Libin Liu ,  Jiangnan Lu ,  Shiming Shi

IPC: G09G3/3258

CPC classification number: G09G3/3258 ,  G09G2300/0852 ,  G09G2310/061 ,  G09G2310/08 ,  G09G2320/0247 ,  G09G2330/021

Abstract: A display substrate includes a pixel driving circuit, which includes a driving circuit, a storage circuit and a reset circuit. The reset circuit is electrically connected to a first terminal of the driving circuit. The driving circuit is used to conduct a path between the first terminal and a second terminal of the driving circuit under the control of a potential at its control terminal. The storage circuit is electrically connected to the control terminal of the driving circuit. The reset circuit includes a first capacitor. The storage circuit includes a second capacitor. An area of an overlap between orthographic projections of a first electrode plate and a second electrode plate of the first capacitor on the base substrate is smaller than that of the second capacitor on the base substrate.

公开(公告)号：US11908410B2

公开(公告)日：2024-02-20

申请号：US18295284

申请日：2023-04-04

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Libin Liu ,  Mei Li ,  Hongli Wang

IPC: G09G3/3233 ,  H10K59/131 ,  H01L27/12 ,  H10K59/121

CPC classification number: G09G3/3233 ,  H10K59/131 ,  G09G2300/0426 ,  G09G2300/0443 ,  G09G2300/0452 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2320/0233 ,  H01L27/124 ,  H10K59/1213

Abstract: A display substrate, a preparation method thereof, a display panel, and a display device are provided. The display substrate includes a base substrate and a repeating unit, the repeating unit includes a plurality of sub-pixels including a first sub-pixel and a second sub-pixel, a color of light emitted by a light-emitting element of the first sub-pixel is identical to a color of light emitted by a light-emitting element of the second sub-pixel, a shape of a first light-emitting voltage application electrode of the light-emitting element of the first sub-pixel is different from a shape of a first light-emitting voltage application electrode of the light-emitting element of the second sub-pixel.

公开(公告)号：US11900883B2

公开(公告)日：2024-02-13

申请号：US17630634

申请日：2021-03-19

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Guangliang Shang ,  Can Zheng ,  Jiangnan Lu ,  Yuhan Qian ,  Li Wang ,  Libin Liu ,  Shiming Shi ,  Dawei Wang

IPC: G11C19/28 ,  G09G3/3266

CPC classification number: G09G3/3266 ,  G11C19/28 ,  G09G2310/0286

Abstract: A shift register unit, a method for driving a shift register unit, a gate driving circuit, and a display device are provided. The shift register unit includes: a second noise reduction control circuit. The second noise reduction control circuit includes: a first control circuit, configured to transmit a first voltage to a second noise reduction control node; a first coupling circuit, configured to store a level of the second noise reduction control node and adjust the level of the second noise reduction control node; a second coupling circuit, configured to reduce an adjustment magnitude of the first coupling circuit in case of adjusting the level of the second noise reduction control node; a transmission circuit, configured to connect the first noise reduction control node and the second noise reduction control node; and a storage circuit, configured to store the level of the first noise reduction control node.