US 12,293,702 B2
Pixel circuit and driving method therefor, display panel, and display apparatus
Fangzhen Zhang, Beijing (CN); Jing Niu, Beijing (CN); Shuang Sun, Beijing (CN); and Zhenyu Zhang, Beijing (CN)
Assigned to BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Filed by BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Filed on Jul. 25, 2023, as Appl. No. 18/358,706.
Application 18/358,706 is a continuation in part of application No. PCT/CN2022/098718, filed on Jun. 14, 2022.
Prior Publication US 2023/0402001 A1, Dec. 14, 2023
Int. Cl. G09G 3/32 (2016.01)
CPC G09G 3/32 (2013.01) [G09G 2300/0842 (2013.01); G09G 2330/021 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A pixel circuit, comprising:
a plurality of driving transistors, wherein the plurality of driving transistors are configured to output different driving currents under control of a received control signal;
a plurality of gating sub-circuits, wherein each gating sub-circuit is electrically connected to a respective selection signal terminal, a scanning signal terminal, a respective driving transistor and a light-emitting device node; the light-emitting device node is configured to be electrically connected to a light-emitting device, and the gating sub-circuit is configured to be turned on under control of a scanning signal from the scanning signal terminal and a selection signal from the selection signal terminal to transmit a driving current from the connected driving transistor to the light-emitting device, wherein within a frame period, one of a plurality of selection signal terminals respectively electrically connected to the plurality of gating sub-circuits outputs a selection signal;
a light-emitting control sub-circuit electrically connected to a light-emitting control signal terminal, a first voltage signal terminal, the plurality of driving transistors and the plurality of gating sub-circuits, and the light-emitting control sub-circuit being configured to create a path between each driving transistor and a respective gating sub-circuit under control of a light-emitting control signal from the light-emitting control signal terminal; and
at least one initialization sub-circuit; each initialization sub-circuit being electrically connected to an initialization signal terminal, a second voltage signal terminal, a control electrode of at least one driving transistor and the light-emitting device node, and the initialization sub-circuit being configured to transmit a second voltage signal from the second voltage signal terminal to both a control electrode of the at least one driving transistor and the light-emitting device under control of an initialization signal from the initialization signal terminal.