US 11,810,506 B2
Pixel circuit, driving method for same, and display apparatus
Yao Huang, Beijing (CN); Rui Wang, Beijing (CN); Benlian Wang, Beijing (CN); Haigang Qing, Beijing (CN); and Zhi Wang, Beijing (CN)
Assigned to Chengdu BOE Optoelectronics Technology Co., Ltd., Chengdu (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
Appl. No. 17/608,746
Filed by Chengdu BOE Optoelectronics Technology Co., Ltd., Sichuan (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
PCT Filed Feb. 10, 2021, PCT No. PCT/CN2021/076536
§ 371(c)(1), (2) Date Nov. 3, 2021,
PCT Pub. No. WO2022/170567, PCT Pub. Date Aug. 18, 2022.
Prior Publication US 2023/0252942 A1, Aug. 10, 2023
Int. Cl. G09G 3/3233 (2016.01)
CPC G09G 3/3233 (2013.01) [G09G 2300/0842 (2013.01); G09G 2310/061 (2013.01); G09G 2320/0233 (2013.01); G09G 2320/0247 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A pixel circuit, comprising a driving sub-circuit, a writing sub-circuit, a compensation sub-circuit, a first reset sub-circuit, a first emitting control sub-circuit, a second emitting control sub-circuit, and an emitting element, wherein
the driving sub-circuit is connected with a first node, a second node, and a third node respectively, and is configured to provide a driving current for the third node under control of signals of the first node and the second node;
the writing sub-circuit is connected with a second scanning signal terminal, a data signal terminal, and the second node respectively, and is configured to write a signal of the data signal terminal into the second node under control of a signal of the second scanning signal terminal;
the compensation sub-circuit is connected with a first voltage terminal, a third scanning signal terminal, the first node, and the third node respectively, and is configured to write a signal of the third node into the first node under control of a signal of the third scanning signal terminal and compensate the first node under control of the signal of the third scanning signal terminal and a signal of the first voltage terminal;
the first reset sub-circuit is connected with a first scanning signal terminal, a first emitting control signal terminal, a first initial signal terminal, and the third node respectively, and is configured to write a signal of the first initial signal terminal into the third node under control of signals of the first scanning signal terminal and the first emitting control signal terminal;
the second emitting control sub-circuit is connected with the first voltage terminal, a second emitting control signal terminal, and the second node respectively, and is configured to provide the signal of the first voltage terminal for the second node under control of a signal of the second emitting control signal terminal;
the first emitting control sub-circuit is connected with the first emitting control signal terminal, the third node, and a fourth node respectively, and is configured to provide the signal of the third node for the fourth node under control of the signal of the first emitting control signal terminal and allow the driving current to flow between the third node and the fourth node; and
one terminal of the emitting element is connected with the fourth node, while the other terminal is connected with a second voltage terminal.