公开(公告)号：US11694642B2

公开(公告)日：2023-07-04

申请号：US17054739

申请日：2020-10-23

Applicant: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD

Inventor： Xiaolong Chen

IPC: G09G3/3233 ,  G09G3/34 ,  G09G3/20

CPC classification number: G09G3/342 ,  G09G3/2007 ,  G09G2320/0233 ,  G09G2320/0626

Abstract: The present application provides a method for driving a mini-LED backlight module. The method includes dividing the mini-LED backlight module into a plurality of partitions along an extending direction of a data line, dividing a period of each frame used in the mini-LED backlight module into an adjusting sub-field, and adjusting durations of a bright sub-field or a dark sub-field of the adjusting sub-field corresponding to different partitions based on different gray modes. In such a way, the brightness of each partition falls within a configured brightness threshold range.

公开(公告)号：US20240194156A1

公开(公告)日：2024-06-13

申请号：US17758978

申请日：2022-06-30

Applicant: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.

Inventor： Xiong Hu ,  Xiaolong Chen

IPC: G09G3/34 ,  G09G3/36

CPC classification number: G09G3/3406 ,  G09G3/3607 ,  G09G2310/08 ,  G09G2320/0233

Abstract: A display device and an electronic equipment are provided. The display device includes a display panel, a backlight module, and a timing controller. By configuring pixel electrodes to have equal or approximately equal first voltages and second voltages when the backlight source is turned on or turned off, the voltages of the pixel electrodes can be prevented from being affected by the backlight. This further stabilizes a voltage difference between the pixel electrodes and the common electrode and improves brightness uniformity of the display panel.

公开(公告)号：US12020653B2

公开(公告)日：2024-06-25

申请号：US17623762

申请日：2021-12-27

Applicant: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.

Inventor： Xiong Hu ,  Yu Wu ,  Xiaolong Chen ,  Tao He

IPC: G09G3/34 ,  G02F1/13357 ,  G09G3/36 ,  G09G5/18

CPC classification number: G09G3/3406 ,  G02F1/133602 ,  G09G3/342 ,  G09G3/36 ,  G09G5/18 ,  G09G2310/08 ,  G09G2320/0626 ,  G09G2320/0646 ,  G09G2340/0435

Abstract: A display panel and a driving method thereof are provided. The driving method includes: acquiring a display synchronization signal, and according to it to determine a first backlight synchronization signal including a plurality of second pulses corresponding to a plurality of first pulses in the display synchronization signal; acquiring a display setting frequency greater than a minimum value of refresh rates of frame images, and according to it to determine a unit backlight clock signal, where a duration of the unit backlight clock signal is equal to of a reciprocal of the display setting frequency; and generating a third pulse between some two adjacent second pulses to drive a backlight plate to emit light.

公开(公告)号：US20240119908A1

公开(公告)日：2024-04-11

申请号：US17623762

申请日：2021-12-27

Applicant: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.

Inventor： Xiong Hu ,  Yu Wu ,  Xiaolong Chen ,  Tao He

IPC: G09G3/34 ,  G09G3/36

CPC classification number: G09G3/3406 ,  G09G3/36 ,  G09G2310/08 ,  G09G2320/0626

Abstract: A display panel and a driving method thereof are provided. The driving method includes: acquiring a display synchronization signal, and according to it to determine a first backlight synchronization signal including a plurality of second pulses corresponding to a plurality of first pulses in the display synchronization signal; acquiring a display setting frequency greater than a minimum value of refresh rates of frame images, and according to it to determine a unit backlight clock signal, where a duration of the unit backlight clock signal is equal to of a reciprocal of the display setting frequency; and generating a third pulse between some two adjacent second pulses to drive a backlight plate to emit light.

公开(公告)号：US12217693B2

公开(公告)日：2025-02-04

申请号：US17623433

申请日：2021-12-24

Applicant: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD.

Inventor： Xiaolong Chen

IPC: G09G3/3258 ,  G09G3/3233 ,  G09G3/3266 ,  G09G3/3275 ,  G09G3/3291

Abstract: A pixel driving circuit and a display panel are provided by the present application. An electrical potential of a control terminal of a driving module can be kept stable through a detection module by connecting the detection module with a control terminal of the driving module when detecting a threshold voltage of the driving module. In this way, an obtained threshold voltage of the driving module is accurate, to make the threshold voltage of the driving module can be accurately compensated, and a display uniformity and a stability of the display panel are improved.