公开(公告)号：US20240127761A1

公开(公告)日：2024-04-18

申请号：US17289291

申请日：2021-04-25

Applicant: TCL China Star Optoelectronics Technology Co., Ltd.

Inventor： Daobing HU ,  Guangmiao WAN ,  Hang WANG ,  Xu WANG ,  Cong HU ,  Hongyuan XU ,  Woosung SON

IPC: G09G3/34 ,  G09G3/32

CPC classification number: G09G3/3406 ,  G09G3/32 ,  G09G2300/0842 ,  G09G2310/08 ,  G09G2320/064

Abstract: A backlight driving method and a display panel are provided. The backlight driving method provided by the present application uses pulse width modulation technology to modulate a low-level pulse width of a scan signal. By increasing a low-level pulse width to increase the pulse period, a number of high-level pulses is reduced, thereby reducing a high-level pulse time. Therefore, a time for a TFT to receive a high-level voltage is also reduced, thereby improving a stability of the TFT and also improving a problem of a threshold voltage drift of the TFT.