公开(公告)号：US20240257755A1

公开(公告)日：2024-08-01

申请号：US18695638

申请日：2023-07-31

申请人： CHENGDU BOE OPTOELECTRONICS TECHNOLOGY CO., LTD. ,  BOE TECHNOLOGY GROUP CO., LTD. ,  Beijing BOE Technology Development Co., Ltd.

发明人： Changlong YUAN ,  Baoxi WANG ,  Jingyi FENG ,  Li ZHU ,  Zhenhua ZHANG ,  Xilei CAO ,  Wulin SHEN ,  Xiaoxiao WANG ,  Yao HU ,  Zhen LIU ,  Mengmeng DU

IPC分类号： G09G3/3233

CPC分类号： G09G3/3233 ,  G09G2300/0842 ,  G09G2310/061 ,  G09G2310/08 ,  G09G2320/0233

摘要： A pixel circuit, a driving method, and a display device are provided. The pixel circuit includes a light emitting element, a driving circuit, a first energy storage circuit, a first setting circuit, a second setting circuit and a light emitting control circuit. The first setting circuit controls to connect the first setting voltage terminal and the first node under the control of the first control signal provided by the first control terminal; the second setting circuit controls to connect the second setting voltage terminal and the second terminal of the first energy storage circuit under the control of the second control signal provided by the second control terminal.

公开(公告)号：US20240169915A1

公开(公告)日：2024-05-23

申请号：US18284243

申请日：2022-07-29

申请人： Chengdu BOE Optoelectronics Technology Co., Ltd. ,  BOE Technology Group Co., Ltd.

发明人： Xilei CAO ,  Dongfang YANG ,  Zhenhua ZHANG ,  Li ZHU ,  Xiaoxin LI ,  Jingyi FENG

IPC分类号： G09G3/3233

CPC分类号： G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2320/0247 ,  G09G2320/0257

摘要： A pixel driving circuit, a method for driving the same, and a display panel are provided. The pixel driving circuit includes a driving circuit (1) and an initialization circuit (2). The driving circuit (1) is connected to a first node (N1), a second node (N2), and a third node (N3). The initialization circuit (2) is connected to the first node (N1), the initialization circuit (2) is further connected to the second node (N2) and/or the third node (N3), and the initialization circuit (2) is configured to provide a first initialization voltage to the first node (N1), provide a first reset voltage to the second node (N2) and/or provide a second reset voltage to the third node (N3), so as to control a driving transistor (T3) in the driving circuit (1) to be turned on.

公开(公告)号：US20240144880A1

公开(公告)日：2024-05-02

申请号：US18280153

申请日：2022-07-29

申请人： Chengdu BOE Optoelectronics Technology Co., Ltd. ,  BOE TECHNOLOGY GROUP CO., LTD.

发明人： Li ZHU ,  Xilei CAO ,  Zhenhua ZHANG ,  Xiaoxin LI ,  Changlong YUAN

IPC分类号： G09G3/3233

CPC分类号： G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/08 ,  G09G2320/0247 ,  G09G2320/0257 ,  G09G2320/045

摘要： A pixel driving circuit includes: a data writing circuit, a compensation control circuit, a light emission control circuit, a voltage regulation circuit, a driving transistor, the compensation control circuit is connected with the driving transistor at a first node, the compensation control circuit is connected with the data writing circuit at a second node, the compensation control circuit, the light emission control circuit, the voltage regulation circuit are connected with the driving transistor at a third node; the compensation control circuit obtains a threshold voltage of the driving transistor, writes a third voltage into the second node, and writes a light emission voltage into the first node according to a variation in a voltage at the second node and the threshold voltage; the voltage regulation circuit maintains a voltage at the third node stable during the compensation control circuit writing the light emission voltage into the first node.