公开(公告)号：US11875747B2

公开(公告)日：2024-01-16

申请号：US17793841

申请日：2021-05-17

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Lujiang Huangfu ,  Li Wang ,  Can Zheng ,  Tian Dong ,  Libin Liu

IPC: G09G3/3258 ,  G09G3/3233

CPC classification number: G09G3/3258 ,  G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0852 ,  G09G2310/0251 ,  G09G2310/0262 ,  G09G2310/061 ,  G09G2320/0214 ,  G09G2320/0233 ,  G09G2320/0238 ,  G09G2320/0247 ,  G09G2320/043

Abstract: A pixel driving circuit includes: an energy storage sub-circuit, a reset sub-circuit, a compensation sub-circuit, a driving sub-circuit, and a current leakage suppression sub-circuit. The energy storage sub-circuit is coupled to a first node and a second node. The reset sub-circuit is coupled to the second node, a first scan timing signal terminal, and an initialization signal terminal. The compensation sub-circuit is coupled to the second node, a third node, and a second scan timing signal terminal. The driving sub-circuit is coupled to the second node, the third node, and a first voltage signal terminal. The current leakage suppression sub-circuit is coupled to the energy storage sub-circuit, the reset sub-circuit, and the compensation sub-circuit. The current leakage suppression sub-circuit is configured to suppress current leakage of the energy storage sub-circuit in a process of generating and transmitting the driving signal by the driving sub-circuit.

公开(公告)号：US11875722B2

公开(公告)日：2024-01-16

申请号：US17771102

申请日：2021-05-20

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Yuhan Qian ,  Libin Liu ,  Long Han

IPC: G09G3/20 ,  G11C19/28

CPC classification number: G09G3/2092 ,  G11C19/28 ,  G09G2300/0452 ,  G09G2300/0852 ,  G09G2310/0286

Abstract: A display panel and a display device. The display panel comprises a transition region, and further comprises: a base substrate; multiple pixel units located on the side of the base substrate and integrated in the transition region; and a first gate drive circuit located on the side of the base substrate facing the pixel units, integrated in the transition region, and comprising a first shift register unit and a first signal line group. The first signal line group comprises a first signal line segment group used for providing a drive signal for the first shift register unit. The base substrate comprises multiple integration portions which are located between orthographic projections of two adjacent pixel units in the same row on the base substrate.

公开(公告)号：US11862098B2

公开(公告)日：2024-01-02

申请号：US17628779

申请日：2021-04-09

Applicant: BOE Technology Group Co., Ltd.

Inventor： Guangliang Shang ,  Jie Zhang ,  Shuo Huang ,  Libin Liu ,  Shiming Shi ,  Hao Liu ,  Haoliang Zheng ,  Xing Yao

IPC: G09G3/3266 ,  G09G3/36 ,  G11C19/28

CPC classification number: G09G3/3266 ,  G09G3/3677 ,  G11C19/28 ,  G09G2300/0852 ,  G09G2310/0286

Abstract: A shift register, a driving method, a driving control circuit and a display device. The method comprises: at a data refresh stage (T10), applying to an input signal end (IP) an input signal having a pulse level, applying a control clock pulse signal to a control clock signal end, and applying a noise reduction clock pulse signal to a noise reduction clock signal end; at a noise reduction holding phase (T21-1), applying a fixed voltage signal to the input signal end (IP), applying a fixed voltage signal to the control clock signal end, and applying a fixed voltage signal to the noise reduction clock signal end; and at a noise reduction enhancement stage (T22-1), applying a fixed voltage signal to the input signal end (IP), applying a fixed voltage signal to the control clock signal end, and applying a clock pulse signal to the noise reduction clock signal end.

公开(公告)号：US11837142B2

公开(公告)日：2023-12-05

申请号：US17638836

申请日：2021-02-04

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Long Han ,  Libin Liu ,  Lujiang Huangfu

IPC: G09G3/20 ,  G09G3/3233

CPC classification number: G09G3/2074 ,  G09G3/3233 ,  G09G2300/0408 ,  G09G2300/0426 ,  G09G2300/0465 ,  G09G2300/0819 ,  G09G2310/0202 ,  G09G2310/08 ,  G09G2320/066

Abstract: The present disclosure relates to an array substrate and a display device. The array substrate includes a plurality of initialization signal lines and a plurality of connection lines. The initialization signal lines are arranged in a conductive layer, extend along a first direction and are arranged at intervals along a second direction, and are used to provide initialization signals to the sub-pixels. The connection lines are arranged in another conductive layer, extend along the second direction and are arranged at intervals along the first direction. Projections of at least one initialization signal line and at least one connection line on the base substrate intersect, and the at least one initialization signal line and the at least one connection line are connected through a via hole, so that the projections of the initialization signal lines and the connection lines on the substrate form a grid-like structure.

公开(公告)号：US11798458B2

公开(公告)日：2023-10-24

申请号：US17905620

申请日：2021-08-12

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Guangliang Shang ,  Jie Zhang ,  Jiangnan Lu ,  Mei Li ,  Libin Liu

IPC: G09G3/3266 ,  G09G3/20

CPC classification number: G09G3/2092 ,  G09G2300/0426 ,  G09G2300/0842 ,  G09G2310/0267 ,  G09G2330/021

Abstract: A gate driving unit includes a first input node control circuit and a charge pump circuit; the first input node control circuit is configured to connect or disconnect the between an input terminal and the first input node under control of a clock signal provided by the clock signal terminal; the charge pump circuit is configured to control to convert a voltage signal of the first input node into a voltage signal of the first node under the control of an input clock signal provided by the input clock signal terminal when the voltage signal of the first input node is a first voltage signal, so that a polarity of the voltage signal of the first input is the same as a polarity of the voltage signal of the first input node, and an absolute value of the voltage value of the voltage signal of the first node is greater than an absolute value of a voltage value of the voltage signal of the first input node.

公开(公告)号：US11756486B2

公开(公告)日：2023-09-12

申请号：US16766094

申请日：2019-07-01

Applicant: CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD. ,  BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Weiyun Huang ,  Libin Liu ,  Chao Zeng ,  Yao Huang ,  Meng Li ,  Yue Long

IPC: G09G3/3266 ,  G09G3/00 ,  G09G3/3233

CPC classification number: G09G3/3266 ,  G09G3/035 ,  G09G3/3233 ,  G09G2300/0804 ,  G09G2300/0842 ,  G09G2310/0221 ,  G09G2310/0286 ,  G09G2310/08 ,  G09G2320/0233 ,  G09G2330/023

Abstract: A display panel, a display device and a driving method are disclosed, the display panel includes a plurality of display regions, the plurality of display regions include a first display region and a second display region, the first display region includes rows of first pixel units, the second display region includes rows of second pixel units; the display panel further includes a first light-emission control scan driving circuit for controlling the rows of first pixel units to emit light, and a second light-emission control scan driving circuit for controlling the rows of second pixel units to emit light, and the driving method includes: providing a first start signal to the first light-emission control scan driving circuit, and providing a second start signal to the second light-emission control scan driving circuit; the second start signal and the first start signal are applied independently, respectively.

公开(公告)号：US20230282170A1

公开(公告)日：2023-09-07

申请号：US18019987

申请日：2022-02-24

Applicant: BOE Technology Group Co., Ltd.

Inventor： Guangliang Shang ,  Libin Liu ,  Li Wang ,  Yu Feng ,  Baoyun Wu

IPC: G09G3/3266 ,  G11C19/28 ,  H10K59/121

CPC classification number: G09G3/3266 ,  G11C19/28 ,  H10K59/1213 ,  H10K59/1216 ,  G09G2300/0408 ,  G09G2310/0286 ,  G09G2310/0281 ,  G09G2300/0426

Abstract: A display substrate and a display device. The display substrate includes: a base substrate; and a gate driving circuit; the gate driving circuit includes a plurality of shift register circuits; each shift register circuit includes: an input circuit, a control circuit, an output circuit, and an output noise reduction circuit; the control circuit includes a first transistor, a second transistor, and a third transistor; the control circuit is connected to the first node, a second node and a third node; at least two selected from group consisting of an active layer of the first transistor, an active layer of the second transistor, and an active layer of the third transistor extend in a first direction and are arranged in the first direction.

公开(公告)号：US11296182B2

公开(公告)日：2022-04-05

申请号：US16499697

申请日：2019-03-25

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Hao Zhang ,  Libin Liu

IPC: H01L27/32 ,  H01L51/56

Abstract: An OLED display substrate, a manufacturing method thereof, and a display device are provided. The OLED display substrate includes a base substrate, a conductive pattern, a driving circuit layer, an anode layer, a light-emitting layer and a cathode layer. The driving circuit layer, the anode layer, the cathode layer and the light-emitting layer are arranged at a same side of the base substrate. The conductive pattern is arranged between the base substrate and the driving circuit layer and electrically connected to the cathode layer through a plurality of via holes.

公开(公告)号：US11269206B2

公开(公告)日：2022-03-08

申请号：US16768632

申请日：2019-12-26

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Qian Yang ,  Pinfan Wang ,  Libin Liu ,  Chunyan Xie

IPC: G02F1/1333 ,  G02F1/1339 ,  H01L51/00 ,  H01L51/52

Abstract: The present disclosure relates to a flexible display substrate and a flexible display device. The flexible display substrate includes a flexible base substrate and a pixel layer. The flexible base substrate includes: a plurality of opening regions, as well as a plurality of island regions and a plurality of bridge regions divided by the plurality of opening regions; and a pixel layer including a plurality of display units arranged in the plurality of island regions respectively, in which each of the plurality of display units is provided with a first groove, the first groove divides the corresponding display units into a display section and a dam section, and at least a part of the dam section is located between the display section and the bridge region adjacent to the display section.

公开(公告)号：US20220068177A1

公开(公告)日：2022-03-03

申请号：US17414126

申请日：2020-10-19

Applicant: BOE Technology Group Co., Ltd.

Inventor： Libin Liu ,  Qian Yang

IPC: G09G3/00 ,  H01L29/786 ,  G09G3/3233

Abstract: Disclosed are a stretchable display panel, a method for compensating a threshold voltage of a transistor in the stretchable display panel, and a computer readable storage medium. The stretchable display panel includes: a base substrate; a transistor on the base substrate, the transistor includes a gate electrode layer and an active layer that are at least partially stacked; and a voltage compensation layer, the voltage compensation layer is located between the transistor and the base substrate, wherein the voltage compensation layer is applied with a compensation voltage that depends on a stretching amount of the stretchable display panel.