公开(公告)号：US12236883B2

公开(公告)日：2025-02-25

申请号：US18566530

申请日：2021-06-25

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Xinshe Yin ,  Guangliang Shang ,  Hualing Yang ,  Xinbin Han ,  Jianchao Zhu

IPC: G09G3/3241

Abstract: A current detection device for detecting a current on the sense line, and compensating for a grayscale of a pixel in accordance with a difference in the detected currents, so as to provide the pixels with uniform brightness. An integration operation is performed on a sense line through an integration sub-circuitry to obtain an output voltage, and the current on the sense line is determined in accordance with the output voltage.

公开(公告)号：US20240315076A1

公开(公告)日：2024-09-19

申请号：US18028017

申请日：2022-06-24

Applicant: BOE Technology Group Co., Ltd.

Inventor： Shanshan Bai ,  Jianchao Zhu ,  Guangliang Shang ,  Danyang Ma

IPC: H10K59/121 ,  C23C14/04 ,  H10K59/35 ,  H10K59/80 ,  H10K71/16

CPC classification number: H10K59/121 ,  C23C14/042 ,  H10K59/80521 ,  H10K59/353 ,  H10K71/166

Abstract: A display panel includes a first displaying region and a second displaying region; the second displaying region is located in a first region of a display surface of the display panel, and a pixel density of the second displaying region is a preset multiple of a pixel density of the first displaying region, whereby a transmittance of the second displaying region is greater than a transmittance of the first displaying region; the second displaying region is provided with first cathode-removal regions, and the first cathode-removal regions are located in gaps between at least two pixel units in the second displaying region; and the preset multiple is a multiple value less than 1 and greater than 0, and the first region is a region facing a region of a bottom of the display surface of the display panel where a functional element is provided.

公开(公告)号：US11963407B2

公开(公告)日：2024-04-16

申请号：US17427076

申请日：2020-11-13

Applicant: BOE Technology Group Co., Ltd.

Inventor： Jiangnan Lu ,  Guangliang Shang ,  Can Zheng ,  Yu Feng ,  Libin Liu ,  Jie Zhang ,  Mei Li

IPC: H10K59/131 ,  G09G3/3208 ,  H10K59/121

CPC classification number: H10K59/131 ,  H10K59/121 ,  G09G3/3208 ,  G09G2320/0209 ,  G09G2320/0233

Abstract: Provided is an organic light-emitting diode display substrate, including: a source/drain layer, a planarization layer and an anode layer which are laminated in sequence, wherein the source/drain layer includes at least one pair of first signal lines; the anode layer includes a common power line, wherein the common power line is provided with vent holes; overlapping areas between two first signal lines in each pair of the first signal lines and a projection pattern of the vent hole are equal, the overlapping area being greater than 0, wherein the projection pattern of the vent hole is a pattern of an orthographic projection of the vent hole in the common power line on the source/drain layer. A display panel and a display device are also provided.

公开(公告)号：US11915655B2

公开(公告)日：2024-02-27

申请号：US17631780

申请日：2021-03-05

Applicant: BOE Technology Group Co., Ltd.

Inventor： Jiangnan Lu ,  Guangliang Shang ,  Xinshe Yin ,  Libin Liu ,  Ke Feng

IPC: G09G3/3266 ,  G11C19/28

CPC classification number: G09G3/3266 ,  G11C19/28 ,  G09G2300/0408 ,  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: an input control circuit, configured to control a level of the first node; a first control circuit, configured to control a level of the second node; a second control circuit, configured to control the level of the second node under control of a fourth clock signal and an output signal; an output circuit, configured to control a level of the output terminal under control of the level of the first node and the level of the second node; and a first reset circuit, configured to control the level of the output terminal under control of the first enable signal, so as to allow the output terminal to stably output a non-operating level during a detection phase.

公开(公告)号：US11763740B2

公开(公告)日：2023-09-19

申请号：US17762330

申请日：2021-04-15

Applicant: BOE Technology Group Co., Ltd.

Inventor： Guangliang Shang ,  Libin Liu ,  Tian Dong ,  Jiangnan Lu ,  Shiming Shi

IPC: G09G3/20 ,  G09G3/3208 ,  G11C19/28 ,  G09G3/3225

CPC classification number: G09G3/3225 ,  G11C19/28 ,  G09G2300/0426 ,  G09G2300/0852 ,  G09G2310/0286 ,  G09G2310/08 ,  G09G2320/0223 ,  G09G2320/0233 ,  G09G2320/0247

Abstract: The present disclosure provides a signal generation circuit, a signal generation method, a signal generation module and a display device. The signal generating circuit includes an input terminal, a signal output terminal, a transmission control circuit, a first output circuit, and an output control circuit; the output control circuit is electrically connected to a first output control terminal, a second output control terminal, a second voltage terminal, the signal writing-in terminal, the signal output terminal and the first voltage terminal, configured to control to connect the signal writing-in terminal and the second voltage terminal under the control of a second output control signal provided by the second output control terminal, and control to connect the signal output terminal and the first voltage terminal under the control of a first output control signal provided by the first output control terminal. The present disclosure expands an adjustment range of frequency of a PWM signal.

公开(公告)号：US20230162685A1

公开(公告)日：2023-05-25

申请号：US17631780

申请日：2021-03-05

Applicant: BOE Technology Group Co., Ltd.

Inventor： Jiangnan Lu ,  Guangliang Shang ,  Xinshe Yin ,  Libin Liu ,  Ke Feng

IPC: G09G3/3266 ,  G11C19/28

CPC classification number: G09G3/3266 ,  G11C19/28 ,  G09G2310/0286 ,  G09G2300/0408

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: an input control circuit, configured to control a level of the first node; a first control circuit, configured to control a level of the second node; a second control circuit, configured to control the level of the second node under control of a fourth clock signal and an output signal; an output circuit, configured to control a level of the output terminal under control of the level of the first node and the level of the second node; and a first reset circuit, configured to control the level of the output terminal under control of the first enable signal, so as to allow the output terminal to stably output a non-operating level during a detection phase.

公开(公告)号：US11328642B2

公开(公告)日：2022-05-10

申请号：US17044148

申请日：2020-03-18

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Guangliang Shang ,  Lijun Yuan ,  Haoliang Zheng ,  Libin Liu ,  Xing Yao ,  Seungwoo Han

IPC: G09G3/20

Abstract: The present disclosure provides a gate driving unit, a gate driving method, a gate driving circuitry and a display device. The gate driving unit includes a reverse-phase gate driving signal output end, a normal-phase gate driving signal output end, an input circuitry, an output control circuitry, an input node control circuitry and an output circuitry. The input circuitry is configured to control an input end to be electrically connected to an input node under the control of a first clock signal. The output control circuitry is configured to control a potential at an output node under the control of a potential at the input node and a second clock signal. The input node control circuitry is configured to control the potential at the input node in accordance with the potential at the output node under the control of the second clock signal. The output circuitry is configured to output a reverse-phase gate driving signal and output a normal-phase gate driving signal in accordance with the potential at the output node.

公开(公告)号：US11244602B2

公开(公告)日：2022-02-08

申请号：US17086097

申请日：2020-10-30

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Haoliang Zheng ,  Dongni Liu ,  Minghua Xuan ,  Zhenyu Zhang ,  Li Xiao ,  Liang Chen ,  Hao Chen ,  Guangliang Shang ,  Lijun Yuan ,  Xing Yao

IPC: G09G3/32

Abstract: A shift register includes an input sub-circuit, a control sub-circuit, an output sub-circuit and a reset sub-circuit. The input sub-circuit is configured to transmit an input signal from an input signal terminal to a pull-up node. The control sub-circuit is configured to transmit a clock signal from a clock signal terminal to the control node. The output sub-circuit is configured to transmit a second voltage signal from a second voltage signal terminal to a first output signal terminal, and to transmit a first voltage signal from a first voltage signal terminal to the first output signal terminal. The reset sub-circuit is configured to transmit the second voltage signal to the control node to reset the control node, and to transmit a third voltage signal from the third voltage signal terminal to the pull-up node to reset the pull-up node.

公开(公告)号：US11238796B2

公开(公告)日：2022-02-01

申请号：US16334539

申请日：2018-06-13

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Seungwoo Han ,  Guangliang Shang

IPC: G09G3/3258

Abstract: This disclosure discloses a pixel circuit and a control method therefor, a display substrate and a display device. The pixel circuit comprises a first transistor, a second transistor, a third transistor, a storage capacitor and a light-emitting element. The pixel circuit further comprises a first sensing circuit and a second sensing circuit, wherein the first sensing circuit is connected in parallel with the first transistor, and the second sensing circuit is connected in parallel with the second transistor; a first sensing signal and a second sensing signal are respectively input to the first sensing circuit and the second sensing circuit for completing acquisition of electrical parameters of the pixel circuit according to the first sensing signal and the second sensing signal.

公开(公告)号：US11211027B2

公开(公告)日：2021-12-28

申请号：US16084027

申请日：2018-04-08

Applicant: BOE TECHNOLOGY GROUP CO., LTD.

Inventor： Guangliang Shang ,  Liugang Zhou ,  Haoliang Zheng ,  Yaoqiu Jing ,  Mingfu Han ,  Seungwoo Han

IPC: G09G3/36

Abstract: The present disclosure is related to a driving circuit of a display panel. The driving circuit may include a turn-on voltage adjusting circuit. The turn-on voltage adjusting circuit may include a control subcircuit and a switching and voltage division subcircuit. The switching and voltage division subcircuit may include a switching subcircuit and a basic voltage division subcircuit. The switching subcircuit may be configured to perform voltage division of a signal outputted by the output terminal of the control subcircuit to form a voltage division feedback signal of the corresponding resolution under control of the control signal and output the voltage division feedback signal to the voltage division feedback node.