US 12,230,204 B2
Pixel circuit, driving method, and display device
Li Wang, Beijing (CN); and Libin Liu, Beijing (CN)
Assigned to BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Appl. No. 18/279,621
Filed by BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
PCT Filed Jul. 12, 2022, PCT No. PCT/CN2022/105233
§ 371(c)(1), (2) Date Aug. 31, 2023,
PCT Pub. No. WO2023/005661, PCT Pub. Date Feb. 2, 2023.
Claims priority of application No. PCT/CN2021/109890 (WO), filed on Jul. 30, 2021; and application No. 202110897272.6 (CN), filed on Aug. 5, 2021.
Prior Publication US 2024/0144870 A1, May 2, 2024
Int. Cl. G09G 3/3233 (2016.01); G09G 3/3225 (2016.01); G09G 3/3266 (2016.01); G09G 3/3275 (2016.01); G09G 3/3291 (2016.01); H10K 59/121 (2023.01); H10K 59/126 (2023.01)
CPC G09G 3/3233 (2013.01) [G09G 3/3225 (2013.01); G09G 3/3266 (2013.01); G09G 3/3275 (2013.01); G09G 3/3291 (2013.01); H10K 59/1213 (2023.02); G09G 2300/0426 (2013.01); G09G 2300/0452 (2013.01); G09G 2300/0819 (2013.01); G09G 2300/0842 (2013.01); G09G 2300/0852 (2013.01); G09G 2300/0861 (2013.01); G09G 2310/0251 (2013.01); G09G 2310/061 (2013.01); G09G 2310/08 (2013.01); G09G 2320/0233 (2013.01); G09G 2320/0247 (2013.01); G09G 2320/045 (2013.01); G09G 2330/021 (2013.01); H10K 59/1216 (2023.02); H10K 59/126 (2023.02)] 17 Claims
OG exemplary drawing
 
1. A pixel circuit, comprising: a light-emitting element, a drive circuit, a control circuit, a first initialization circuit, a first light-emitting control circuit and a second light-emitting control circuit, wherein
the control circuit is electrically connected to a first scanning line, a control terminal of the drive circuit and a connection node, and is used for causing, under the control of a first scanning signal provided by the first scanning line, the control terminal of the drive circuit to be electrically connected to the connection node;
the first initialization circuit is electrically connected to a reset control line, the connection node and a first initial voltage line, and is used for writing, under the control of a reset control signal provided by the reset control line, a first initial voltage provided by the first initial voltage line to the connection node;
the first light-emitting control circuit is electrically connected to a first light-emitting control line, a first voltage terminal and a first terminal of the drive circuit, and is used for causing, under the control of a first light-emitting control signal provided by the first light-emitting control line, the first voltage terminal to be conductively connected to the first terminal of the drive circuit;
the second light-emitting control circuit is electrically connected to a second light-emitting control line, a second terminal of the drive circuit and a first electrode of the light-emitting element, and is used for causing, under the control of a second light-emitting control signal provided by the second light-emitting control line, the second terminal of the drive circuit to be conductively connected to the first electrode of the light-emitting element;
the drive circuit is used for causing, under the control of a potential at the control terminal of the drive circuit, the first terminal of the drive circuit to be conductively connected to the second terminal of the drive circuit;
wherein the pixel circuit further comprises a reset circuit;
wherein the reset circuit is electrically connected to the reset control line and the first terminal of the drive circuit, and is used for initializing a potential of the first terminal of the drive circuit under the control of the reset control signal; or,
the reset circuit is electrically connected to the reset control line and the second terminal of the drive circuit, and is used for initializing a potential of the second terminal of the drive circuit under the control of the reset control signal;
wherein the reset circuit comprises a first transistor;
a control electrode of the first transistor and a first electrode of the first transistor are electrically connected to the reset control line, and a second electrode of the first transistor is electrically connected to the first terminal of the drive circuit or the second terminal of the drive circuit.