US 11,056,063 B2
Pixel circuit and driving method therefor, and display device
Zhongshan Wu, Beijing (CN); Xun Pu, Beijing (CN); Xin Bi, Beijing (CN); Jiandong Guo, Beijing (CN); and Junhui Wu, Beijing (CN)
Assigned to CHONGQING BOE OPTOELECTRONICS TECHNOLOGY CO., LTD., Chongqing (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Appl. No. 16/609,278
Filed by Chongqing BOE Optoelectronics Technology Co., Ltd., Chongqing (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
PCT Filed Mar. 26, 2019, PCT No. PCT/CN2019/079714
§ 371(c)(1), (2) Date Oct. 29, 2019,
PCT Pub. No. WO2019/184916, PCT Pub. Date Oct. 3, 2019.
Claims priority of application No. 201810264933.X (CN), filed on Mar. 28, 2018.
Prior Publication US 2020/0051511 A1, Feb. 13, 2020
Int. Cl. G09G 3/3291 (2016.01); G09G 3/3258 (2016.01)
CPC G09G 3/3291 (2013.01) [G09G 3/3258 (2013.01); G09G 2300/0866 (2013.01); G09G 2320/0233 (2013.01)] 15 Claims
OG exemplary drawing
 
1. A pixel circuit, comprising: a data writing and compensation sub-circuit, a driving sub-circuit, and a light-emitting control sub-circuit, wherein
the data writing and compensation sub-circuit is electrically connected to the driving sub-circuit, a first control signal terminal and a data voltage terminal, and the data writing and compensation sub-circuit is configured to transmit a data signal from the data voltage terminal to the driving sub-circuit under control of the first control signal terminal, and to compensate a threshold voltage of the driving sub-circuit under the control of the first control signal terminal;
the light-emitting control sub-circuit is electrically connected to the driving sub-circuit, the data writing and compensation sub-circuit, a second control signal terminal, a first voltage terminal and a second voltage terminal, and the light-emitting control sub-circuit is configured to transmit a first voltage signal from the first voltage terminal to the driving sub-circuit and the data writing and compensation sub-circuit under control of the second control signal terminal, and to transmit a second voltage signal from the second voltage terminal to the driving sub-circuit under the control of the second control signal terminal; and
the driving sub-circuit is further electrically connected to a light-emitting sub-circuit, and the driving sub-circuit is configured to transmit a signal output from the light-emitting control sub-circuit to the light-emitting sub-circuit;
wherein transistors in the data writing and compensation sub-circuit are P-type transistors, and transistors in the light-emitting control sub-circuit are N-type transistors; or
the transistors in the data writing and compensation sub-circuit are N-type transistors, and the transistors in the light-emitting control sub-circuit are P-type transistors.