US 12,118,906 B2
Method for sensing display panel, and display panel
Xiaolong Wei, Beijing (CN); Fei Yang, Beijing (CN); Song Meng, Beijing (CN); Jingbo Xu, Beijing (CN); and Jianbo Xian, Beijing (CN)
Assigned to Hefei BOE Joint Technology Co., Ltd., Anhui (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
Appl. No. 17/764,992
Filed by Hefei BOE Joint Technology Co., Ltd., Anhui (CN); and BOE Technology Group Co., Ltd., Beijing (CN)
PCT Filed May 28, 2021, PCT No. PCT/CN2021/096718
§ 371(c)(1), (2) Date Mar. 30, 2022,
PCT Pub. No. WO2022/246790, PCT Pub. Date Dec. 1, 2022.
Prior Publication US 2024/0054925 A1, Feb. 15, 2024
Int. Cl. G09G 3/00 (2006.01); G09G 3/3233 (2016.01)
CPC G09G 3/006 (2013.01) [G09G 3/3233 (2013.01); G09G 2300/0842 (2013.01)] 17 Claims
OG exemplary drawing
 
1. A method for sensing a display panel, comprising:
sensing an electrical characteristic parameter of a driving transistor of a pixel circuit of a sub-pixel in an X-th row in a blank stage between an N-th frame and an (N+1)-th frame;
wherein both N and X are positive integers, and the X is a random number;
wherein the sensing an electrical characteristic parameter of a driving transistor of a pixel circuit of a sub-pixel in an X-th row in a blank stage between an N-th frame and an (N+1)-th frame comprises:
generating a sensing clock signal by using a random control signal; and
generating, by a sensing driving circuit, a sensing control signal provided for the pixel circuit of the sub-pixel in the X-th row in the blank stage between the N-th frame and the (N+1)-th frame by using the sensing clock signal, a sensing starting signal, and an enable control signal;
wherein the sensing clock signal, the sensing starting signal, and the enable control signal are pulse signals; a pulse width of a sensing pulse of the sensing starting signal is greater than a pulse width of a clock pulse of the sensing clock signal and is not greater than twice the pulse width of the clock pulse, and a pulse width of the enable control signal is greater than the pulse width of the sensing pulse.