US 12,333,977 B2
Display panel and device with bias maintaining stage duration according to brightness
Yuheng Zhang, Xiamen (CN); Jiemiao Pan, Xiamen (CN); Xiangyuan Li, Xiamen (CN); and Jinjin Yang, Xiamen (CN)
Assigned to Xiamen Tianma Display Technology Co., Ltd., Xiamen (CN)
Filed by Xiamen Tianma Display Technology Co., Ltd., Xiamen (CN)
Filed on Nov. 14, 2023, as Appl. No. 18/389,279.
Claims priority of application No. 202310806330.9 (CN), filed on Jul. 3, 2023.
Prior Publication US 2024/0078948 A1, Mar. 7, 2024
This patent is subject to a terminal disclaimer.
Int. Cl. G09G 3/20 (2006.01)
CPC G09G 3/20 (2013.01) [G09G 2300/0819 (2013.01); G09G 2300/0842 (2013.01); G09G 2310/08 (2013.01); G09G 2320/0233 (2013.01); G09G 2320/0252 (2013.01); G09G 2320/045 (2013.01); G09G 2320/0626 (2013.01); G09G 2330/021 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A display panel, comprising a pixel circuit and a light-emitting element, wherein
the pixel circuit comprises a drive module and a data write module, and the drive module comprises a drive transistor;
a working process of the pixel circuit comprises a data write stage and a bias stage, the data write module is configured to supply a data signal in the data write stage, and the data write module is configured to supply a bias signal in the bias stage;
the drive transistor is configured to selectively supply a drive current to the light-emitting element, and the working process of the pixel circuit comprises a first light emission stage and a first non-light emission stage;
in the first non-light emission stage, a bias maintaining stage is from a start moment of the bias stage to a start moment of the first light emission stage;
working modes of the display panel comprise a first mode and a second mode, and display brightness of the display panel in the first mode is different from display brightness of the display panel in the second mode; and
a length of the bias maintaining stage in the first mode is different from a length of the bias maintaining stage in the second mode.