公开(公告)号：US20220327984A1

公开(公告)日：2022-10-13

申请号：US17435043

申请日：2020-12-28

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

Inventor： Yizhuo ZHAO ,  Yuhua CHANG ,  Bin ZHAO

IPC: G09G3/20

Abstract: The driving method provided by the present application includes: detecting a refresh frequency of a display device based on a plurality of predicted frames to obtain a change rule of the refresh frequency; obtaining a current refresh frequency of the display device and a corresponding frame number information; predicting an expected timing when the display device switches the refresh frequency next time and an expected frequency value after switching according to the change rule, the current refresh frequency, and the corresponding frame number information; and performing a gray-scale compensation on the display device according to the expected frequency value and the expected timing.

公开(公告)号：US20230386378A1

公开(公告)日：2023-11-30

申请号：US17281620

申请日：2021-03-15

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

Inventor： Yizhuo ZHAO ,  Qiusheng HUANG ,  Yuhua CHANG ,  Bin ZHAO

IPC: G09G3/20

CPC classification number: G09G3/20 ,  G09G2320/0626 ,  G09G2320/0233 ,  G09G2320/0247

Abstract: The present application provides a luminance compensation method, a luminance compensation device, and a display device. Luminance compensation is performed on at least part of consecutive frames satisfying a condition of the luminance compensation, and the luminance compensation is not performed on the consecutive frames not satisfying the condition of the luminance compensation, thereby preventing a problem that the luminance compensation applied to a display device with free synchronization technology of traditional technology causing display of special images to deteriorate.

公开(公告)号：US20220293032A1

公开(公告)日：2022-09-15

申请号：US16972891

申请日：2020-10-22

Applicant: TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD

Inventor： Wenfang LI ,  Yuhua CHANG

IPC: G09G3/20

Abstract: An electronic equipment and a display driving system are provided. The display driving system includes a power management circuit and a timing circuit electrically connected to the power management circuit. The power management circuit receives an input voltage and output a working voltage according to the input voltage. The timing circuit receives the working voltage and output a predetermined command to the power management circuit. The power management circuit is further configured to select a predetermined working mode according to the predetermined command such that the power management circuit works in the predetermined working mode.

公开(公告)号：US20240296772A1

公开(公告)日：2024-09-05

申请号：US17618554

申请日：2021-11-23

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

Inventor： Yoongu KIM ,  Yizhuo ZHAO ,  Yuhua CHANG

IPC: G09G3/20

CPC classification number: G09G3/2007 ,  G09G2320/0247 ,  G09G2320/0271 ,  G09G2320/0626 ,  G09G2320/0693

Abstract: A method and an apparatus for adjusting a brightness of a display are provided. The method includes: acquiring a gray scale number and a working frequency; determining a first gray scale compensation value of a preset calibration area using a preset gray scale compensation mapping table; determining a second gray scale compensation value of a non-preset calibration area according to the first gray scale compensation value; controlling, according to the first gray scale compensation value, the preset calibration area for displaying; and controlling, according to the second gray scale compensation value, the non-preset calibration area for displaying.

公开(公告)号：US20240046840A1

公开(公告)日：2024-02-08

申请号：US17422986

申请日：2021-05-31

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

Inventor： Yizhuo ZHAO ,  Qiusheng HUANG ,  Yuhua CHANG ,  Bin ZHAO

IPC: G09G3/20

CPC classification number: G09G3/2018 ,  G09G2340/0435 ,  G09G2320/0247 ,  G09G2320/0673 ,  G09G2320/0233 ,  G09G2330/021 ,  G09G2320/0276

Abstract: A display device, a driving method thereof, and a display equipment are provided. The display device includes a driving module. The present disclosure allows a display panel to maintain a same brightness for image display when the display panel refreshes images at different refresh rates by allowing the refresh rates to correspond to gamma voltages and adjusting the gamma voltages to adjust a brightness of the display panel when a current refresh rate of the display panel changes. Serious flickers of the display device caused by the display device being switched at different refresh rates in a short time can be prevented.