公开(公告)号：US11925082B2

公开(公告)日：2024-03-05

申请号：US17621861

申请日：2021-01-19

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Mei Li ,  Tian Dong ,  Li Wang ,  Guangliang Shang ,  Can Zheng

IPC: H10K59/131 ,  G09G3/3233 ,  G09G3/3266 ,  G09G3/3275 ,  H10K59/121 ,  H10K102/00

CPC classification number: H10K59/131 ,  G09G3/3233 ,  G09G3/3266 ,  G09G3/3275 ,  H10K59/121 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2320/0214 ,  G09G2320/0247 ,  G09G2330/02 ,  G09G2330/021 ,  H10K2102/302

Abstract: A display panel and a display device are provided. The display panel includes: a pixel unit including a pixel circuit and a light-emitting element, the pixel circuit including a first transistor, the pixel unit including a first pixel unit and a second pixel unit located in a same row and adjacent columns; a first gate line and a second gate line, connected to gate electrodes of the first transistors of the first pixel unit and the second pixel unit; a first gate signal line, connected to the first pixel unit; a second gate signal line, connected to the second pixel unit; a first connection line connected with the first gate signal line through the first connection line; and a second connection line connected with the second gate signal line through the second connection line.

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.

公开(公告)号：US11727868B2

公开(公告)日：2023-08-15

申请号：US16768306

申请日：2019-06-03

Applicant: BOE TECHNOLOGY GROUP CO., LTD

Inventor： Can Zheng

IPC: G09G3/3233 ,  G09G3/3266 ,  G09G3/3291

CPC classification number: G09G3/3233 ,  G09G3/3266 ,  G09G3/3291 ,  G09G2310/061 ,  G09G2310/08

Abstract: Disclosed are a pixel circuit, a driving method of the pixel circuit and a display device, the pixel circuit including a reset unit, a voltage writing unit and a light-emitting control unit, the reset unit is connected to a reset control signal terminal, and resets the pixel circuit under the control of the reset control signal; the voltage writing unit stores a data signal and a threshold voltage of a driving transistor under the control of the scan control signal; the light-emitting control unit is connected to a light-emitting control signal terminal and includes the driving transistor, and use the data signal and the threshold voltage to generate a current under control of the light-emitting control signal; the light-emitting control unit includes a first type transistor, the reset unit and the voltage writing unit include a second type transistor different from the first type transistor.

公开(公告)号：US11688343B2

公开(公告)日：2023-06-27

申请号：US17626474

申请日：2021-01-27

Applicant: BOE Technology Group Co., Ltd.

Inventor： Can Zheng ,  Jianchao Zhu ,  Lujiang Huangfu ,  Libin Liu ,  Shiming Shi

IPC: G09G3/3233

CPC classification number: G09G3/3233 ,  G09G2300/043 ,  G09G2300/0426 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2300/0861 ,  G09G2310/0297 ,  G09G2310/08 ,  G09G2320/0242 ,  G09G2320/0257 ,  G09G2320/045 ,  G09G2330/021

Abstract: In a pixel driving circuit, a compensation sub-circuit is respectively coupled to a first control terminal, a control terminal and a second terminal of the driving sub-circuit; a first terminal of the first coupling sub-circuit is coupled to the control terminal of the driving sub-circuit; a first terminal of the second coupling sub-circuit is coupled to a second terminal of the first coupling sub-circuit; a first reset sub-circuit is respectively coupled to a second control terminal, the control terminal of the driving sub-circuit and an initialization signal output terminal; a second reset sub-circuit is respectively coupled to a third control terminal, a second terminal of the first coupling sub-circuit and the first level signal output terminal; a first light emitting control sub-circuit is respectively coupled to a light emitting control terminal, a second terminal of the second coupling sub-circuit and a reference signal output terminal.

公开(公告)号：US11538395B2

公开(公告)日：2022-12-27

申请号：US17256233

申请日：2020-03-18

Applicant: BOE Technology Group Co., Ltd.

Inventor： Guangliang Shang ,  Jiangnan Lu ,  Can Zheng ,  Hao Zhang ,  Long Han ,  Libin Liu ,  Shiming Shi ,  Dawei Wang

IPC: G09G3/20 ,  G11C19/28

Abstract: A shift register unit includes an input circuit, a first control circuit, a second control circuit and an output circuit. The input circuit is configured to provide signals of the signal input terminal to the first control node, and provide signals of the first power supply terminal or the first clock signal terminal to the second control node. The first control circuit is configured to provide signals of the second power supply terminal or the second clock signal terminal to the first output terminal. The second control circuit is configured to provide signals of the first power supply terminal to the second output terminal. The output circuit is configured to provide signals of the second power supply terminal to the second output terminal.

公开(公告)号：US11308854B2

公开(公告)日：2022-04-19

申请号：US16642140

申请日：2019-03-22

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Can Zheng

IPC: G09G3/20

Abstract: A shift register unit, a driving circuit, a display device, and a driving method are disclosed. The shift register unit includes a first input circuit, a second input circuit, an output circuit, a first control circuit, and a second control circuit. The first input circuit is electrically connected to a first node, and is configured to transmit an input signal to the first node; the second input circuit is electrically connected to the first node and a second node, and is configured to control a level of the second node; the first control circuit is electrically connected to the second node and a third node, and is configured to control a level of the third node; and the output circuit is electrically connected to the third node and an output terminal, and is configured to output an output signal to the output terminal.

公开(公告)号：US11232734B2

公开(公告)日：2022-01-25

申请号：US16964465

申请日：2019-09-25

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Guangliang Shang ,  Can Zheng ,  Jiangnan Lu ,  Tian Dong ,  Libin Liu ,  Long Han ,  Shiming Shi ,  Dawei Wang

IPC: G09G3/20 ,  G11C19/28

Abstract: A shift register unit, a driving method, a gate driving circuit and a display device are provided. The shift register unit includes a first gate driving output circuit and a second gate driving output circuit. The first gate driving output circuit is used to output a first gate driving signal through the first gate driving signal output terminal; the second gate driving output circuit is used to generate a second gate driving signal outputted simultaneously with the first gate driving signal based on the first gate driving signal, a first clock signal and a second clock signal. In the present disclosure, the second gate driving output circuit is added, the first gate driving signal, the first clock signal, and the second clock signal are used to generate an inverted second gate driving signal, so that positive and negative switching control signals are generated by one stage of shift register unit.

公开(公告)号：US20210217339A1

公开(公告)日：2021-07-15

申请号：US16652180

申请日：2019-10-18

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Can Zheng ,  Libin Liu ,  Li Wang ,  Tian Dong ,  Guangliang Shang ,  Xinshe Yin

IPC: G09G3/00

Abstract: The present disclosure relates to a gate driving circuit applied to a foldable display panel comprising B display areas arranged in order. The gate driving circuit may include B gate driving subcircuits and a control circuit. Each of the gate driving subcircuits may correspond to one of the display areas and each of the gate driving subcircuits may comprise a plurality of stage gate driving units. The control circuit may be configured to, when the foldable display panel is in a full screen display state, control a type of an input signal in a last stage gate driving unit of a bth gate driving subcircuit to be the same as a type of an input signal in a first stage gate driving unit of a (b+1)th gate driving subcircuit, where B is an integer greater than 1 and b is a positive integer less than B.

公开(公告)号：US10909920B2

公开(公告)日：2021-02-02

申请号：US16309203

申请日：2018-03-20

Applicant: BOE TECHNOLOGY GROUP CO., LTD. ,  ORDOS YUANSHENG OPTOELECTRONICS CO., LTD.

Inventor： Jianchao Zhu ,  Lujiang Huangfu ,  Yunfei Li ,  Can Zheng ,  Libin Liu ,  Yipeng Chen

IPC: G09G3/3233 ,  G09G3/3266

Abstract: A pixel driving circuit and a driving method, and a display device are provided. The driving circuit includes: a first switching element, a second switching element, a third switching element, a fourth switching element, a fifth switching element, a driving transistor, a sixth switching element, a first storage capacitor and a second storage capacitor.

公开(公告)号：US20180330685A1

公开(公告)日：2018-11-15

申请号：US15865550

申请日：2018-01-09

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Can Zheng

IPC: G09G3/36 ,  G09G3/3266

CPC classification number: G09G3/3674 ,  G09G3/3266 ,  G09G2300/0426 ,  G09G2310/0286 ,  G09G2310/08

Abstract: Provided is a shift register, comprising an input circuit, an output circuit, and a control circuit, which are electrically connected to a control node. The input circuit is electrically connected with a signal input terminal of the shift register, and is configured to input an input signal provided by the signal input terminal to the control node. The control circuit is electrically connected with a working power supply terminal, and is configured to input an operation voltage provided by the working power supply terminal to the control node. The output circuit is electrically connected with a signal output terminal of the shift register and a clock signal line, and is configured to input one of a voltage of the control node and the first clock signal provided by the clock signal line to the signal output terminal.