US 12,340,742 B2
Display driving circuit, method for driving display panel, and display device for optimizing flicker prevention
Yong Yu, Beijing (CN); and Hao Sun, Beijing (CN)
Assigned to Chengdu BOE Optoelectronics Technology Co., Ltd., Sichuan (CN); BOE Technology Group Co., Ltd., Beijing (CN); and Beijing BOE Technology Development Co., Ltd., Beijing (CN)
Appl. No. 18/576,718
Filed by Chengdu BOE Optoelectronics Technology Co., Ltd., Sichuan (CN); BOE Technology Group Co., Ltd., Beijing (CN); and Beijing BOE Technology Development Co., Ltd., Beijing (CN)
PCT Filed Apr. 28, 2023, PCT No. PCT/CN2023/091464
§ 371(c)(1), (2) Date Jan. 4, 2024,
PCT Pub. No. WO2024/221384, PCT Pub. Date Oct. 31, 2024.
Prior Publication US 2025/0095566 A1, Mar. 20, 2025
Int. Cl. G09G 3/3225 (2016.01)
CPC G09G 3/3225 (2013.01) [G09G 2310/08 (2013.01); G09G 2320/0247 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A display driving circuit, applicable to a display panel, wherein the display panel comprises a plurality of pixels, and the display driving circuit comprises: a first display driving circuit, a second display driving circuit, a power circuit and a timing controller circuit; wherein
the first display driving circuit is electrically and respectively connected to the power circuit and the timing controller circuit, the power circuit is configured to send a first power signal to the first display driving circuit, and the timing controller circuit is configured to send a communication indication signal to the first display driving circuit;
the first display driving circuit is electrically connected to the second display driving circuit, and the first display driving circuit is configured to send a first control signal to the second display driving circuit in response to that a level of the first power signal changes from a first level to a second level, and send a second control signal to the second display driving circuit in response to that a level of the communication indication signal changes from a third level to a fourth level;
the second display driving circuit is electrically connected to the plurality of pixels, and the second display driving circuit is configured to: turn off the plurality of pixels in response to the first control signal so that the display panel is in a black screen state, and drive the plurality of pixels in response to the second control signal so that the display panel is in a display state.