公开(公告)号：US11037491B1

公开(公告)日：2021-06-15

申请号：US16830775

申请日：2020-03-26

Applicant: BOE Technology Group Co., Ltd.

Inventor： Jiangnan Lu ,  Libin Liu

IPC: G09G5/10 ,  G09G3/3225 ,  G09G3/3275

Abstract: The disclosure discloses a display panel and a display device. Each data writing circuit includes: a first sub-data writing transistor, a second sub-data writing transistor and a distributed capacitor; a gate of the first sub-data writing transistor and a gate of the second sub-data writing transistor are both electrically connected with a corresponding scanning signal line, a first end of the first sub-data writing transistor is electrically connected with a corresponding data line, a second end of the first sub-data writing transistor is electrically connected with a first end of the second sub-data writing transistor, a second end of the second sub-data writing transistor is electrically connected with a gate of the driving transistor, and a first electrode of the distributed capacitor is electrically connected with the second end of the first sub-data writing transistor, and a second electrode of the distributed capacitor is electrically connected with a fixed voltage signal end.

公开(公告)号：US10943537B2

公开(公告)日：2021-03-09

申请号：US16619224

申请日：2018-12-03

Applicant: BOE TECHNOLOGY GROUP CO., LTD. ,  Beihang University

Inventor： Hongge Li ,  Yuliang Li ,  Jiangnan Lu

IPC: G09G3/3233

Abstract: A pixel circuit configured to drive a light-emitting element and a driving method therefor, and a display substrate, the pixel circuit comprising: a first switch sub-circuit configured to input, under the control of a first control signal line, a data signal of a data signal line to a first node; a second switch sub-circuit configured to input, under the control of a second control signal line, a first signal of a first signal line to a second node; a driving sub-circuit configured to drive, under the control of the potential of the first node, the light-emitting element to emit light; and a memory sub-circuit configured to store a threshold voltage of the driving sub-circuit before the second switch sub-circuit is turned on in each work cycle of the pixel circuit.

公开(公告)号：US20200033675A1

公开(公告)日：2020-01-30

申请号：US16508833

申请日：2019-07-11

Applicant: BOE Technology Group Co., Ltd.

Inventor： Jiangnan Lu ,  Shi Shu ,  Kang Guo ,  Qi Yao

IPC: G02F1/1335

Abstract: Provided are a manufacturing method of a display substrate, a display substrate and a display device, which belongs to the field of display technologies. The manufacturing method of the display substrate includes: forming a first planarization layer on a base substrate on which a patterned film layer is formed; forming a first buffer layer on the side, away from the base substrate, of the first planarization layer; forming a second buffer layer on the side, away from the base substrate, of the first buffer layer; and forming a Wire Grid Polarizer (WGP) on the side, away from the base substrate, of the second buffer layer.

公开(公告)号：US12217702B2

公开(公告)日：2025-02-04

申请号：US18016361

申请日：2022-02-28

Applicant: BOE Technology Group Co., Ltd.

Inventor： Jiangnan Lu ,  Ke Feng

IPC: G09G3/3266 ,  G09G3/3275

Abstract: A display substrate and a display apparatus are disclosed, the display substrate includes multiple light emitting output lines connected with a light emitting drive circuit and multiple scan output lines connected with a scan drive circuit; at least one light emitting output line includes at least two light emitting output parts connected with each other, a scan output line has an integrally formed structure, or, a light emitting output line has an integrally formed structure, at least one scan output line includes at least two scan output parts connected with each other, or at least one light emitting output line includes at least two light emitting output parts connected with each other, at least one scan output line includes at least two scan output parts connected with each other; at least two light emitting output parts located on a same light emitting output line are arranged in different layers.

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：US12150348B2

公开(公告)日：2024-11-19

申请号：US17598894

申请日：2020-12-23

Applicant: BOE Technology Group Co., Ltd.

Inventor： Xin Li ,  Xing Fan ,  Jing Yang ,  Jiangnan Lu ,  Yansong Li

IPC: H10K71/00 ,  H10K50/86 ,  H10K59/122 ,  H10K59/12

Abstract: Provided are a display substrate, a preparation method thereof and a display apparatus. The display substrate includes a substrate and a plurality of pixel units disposed in matrix on the substrate, wherein each pixel unit includes a plurality of sub-pixels, and each sub-pixel includes a driving structure layer, a first electrode and a first pixel define layer on the driving structure layer, and a light absorption layer disposed on the first pixel define layer. The first pixel define layer includes a plurality of first barriers and first pixel openings disposed between the first barriers, the first pixel opening exposes at least part of the first electrode, and the first pixel opening includes a first surface close to the first electrode, a second surface opposite to the first surface and a first sidewall between the first and second surfaces.

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：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：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.