公开(公告)号：US12112676B2

公开(公告)日：2024-10-08

申请号：US17618406

申请日：2021-11-03

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

Inventor： Jinfeng Liu ,  Yue Fan

IPC: G09G3/20 ,  G09G3/3208 ,  G09G3/36

CPC classification number: G09G3/2007 ,  G09G3/3208 ,  G09G3/36 ,  G09G2320/0233

Abstract: A demura method for a display panel includes the steps: obtaining brightness data of a display image at a gray scale value; calculating the brightness data of the display image to obtain demura data of the pixel; dividing bits of the demura data of the pixel into first bits and second bits according to a bit length of the pixel, setting an integer gray scale value of the pixel according to the first bits, and setting a mixed gray scale value of the pixel according to the second bits.

公开(公告)号：US20240062696A1

公开(公告)日：2024-02-22

申请号：US17618406

申请日：2021-11-03

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

Inventor： Jinfeng Liu ,  Yue Fan

IPC: G09G3/20 ,  G09G3/36 ,  G09G3/3208

CPC classification number: G09G3/2007 ,  G09G3/36 ,  G09G3/3208 ,  G09G2320/0233

Abstract: A demura method for a display panel includes the steps: obtaining brightness data of a display image at a gray scale value; calculating the brightness data of the display image to obtain demura data of the pixel; dividing bits of the demura data of the pixel into first bits and second bits according to a bit length of the pixel, setting an integer gray scale value of the pixel according to the first bits, and setting a mixed gray scale value of the pixel according to the second bits.

公开(公告)号：US12067928B2

公开(公告)日：2024-08-20

申请号：US17623583

申请日：2021-11-02

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

Inventor： Jinfeng Liu ,  Yue Fan

IPC: G09G3/20

CPC classification number: G09G3/2096 ,  G09G2320/0247 ,  G09G2340/00 ,  G09G2340/0435 ,  G09G2360/16

Abstract: The present application provides a flicker adjustment method of a frequency conversion display device and frequency conversion display device, by the time controller detect and count the frame number or the total time length of the image frames that are continuous with the same frame rate, and compare the frame number or the total time length to a predetermined constant frequency determination threshold value, when the frame number or the total time length is equal to or greater than the predetermined constant frequency determination threshold value, the white tracking compensation table corresponding to each of the image frames that are continuous with the same frame rate is revised as the same white tracking compensation table. Therefore, the present application avoids the issues of flickering images, achieves the goal of lowered flickering images of the frequency conversion display device and improvement of display quality.