US 12,293,733 B2
Drive method for display panel displaying display frames at different refresh rates
Huiming Wang, Beijing (CN); Liugang Zhou, Beijing (CN); Chunyang Nie, Beijing (CN); Wenlong Feng, Beijing (CN); Yue Yang, Beijing (CN); Jianwei Sun, Beijing (CN); and Heng Zhang, Beijing (CN)
Assigned to HEFEI BOE DISPLAY TECHNOLOGY CO., LTD., Anhui (CN); and BOE TECHNOLOGY GROUP CO., LTD., Beijing (CN)
Appl. No. 18/028,328
Filed by HEFEI BOE DISPLAY TECHNOLOGY CO., LTD., Anhui (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
PCT Filed May 25, 2022, PCT No. PCT/CN2022/095034
§ 371(c)(1), (2) Date Mar. 24, 2023,
PCT Pub. No. WO2023/225914, PCT Pub. Date Nov. 30, 2023.
Prior Publication US 2024/0321226 A1, Sep. 26, 2024
Int. Cl. G09G 3/36 (2006.01)
CPC G09G 3/3607 (2013.01) [G09G 3/3677 (2013.01); G09G 3/3688 (2013.01); G09G 2310/08 (2013.01); G09G 2320/0233 (2013.01); G09G 2320/0247 (2013.01); G09G 2330/021 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A drive method for a display panel, comprising:
obtaining display data corresponding to a current display frame, and a current refresh rate;
determining a target rate level corresponding to the current refresh rate according to the current refresh rate and prestored rate levels corresponding one-to-one to different refresh rate intervals; and
controlling sub-pixels in the display panel to be charged with a data voltage according to the target rate level and the display data;
wherein the controlling of the sub-pixels in the display panel to be charged with the data voltage according to the target rate level and the display data comprises:
determining, according to the target rate level, a target voltage of a target level that generates a gate scanning signal, wherein target voltages, generating the gate scanning signal, corresponding to different rate levels are different; and
controlling the display panel to load the gate scanning signal onto a gate according to the target voltage, and loading the data voltage onto a data line according to the display data, so as to charge the sub-pixels in the display panel with the data voltage;
wherein the target level comprises an active level;
the determining, according to the target rate level, of the target voltage that generates the gate scanning signal comprises:
adjusting, according to the target rate level, a first reference voltage of the active level that generates the gate scanning signal, to obtain the target voltage of the active level, wherein the target voltages of the active levels corresponding to different rate levels are different; and
the controlling of the display panel to load the gate scanning signal onto the gate according to the target voltage comprises:
controlling the display panel to load the gate scanning signal onto the gate according to the obtained target voltage of the active level.