-
公开(公告)号：US12112675B2
公开(公告)日：2024-10-08
申请号：US17287541
申请日：2021-04-16
Inventor： Yuhua Chang , Wenli Wang
IPC: G09G3/20
CPC classification number: G09G3/2007 , G09G2320/0233 , G09G2320/0626 , G09G2320/0673 , G09G2360/16
Abstract: The present invention discloses a display panel grayscale compensation method, a grayscale compensation device, and a grayscale compensation system. The grayscale compensation method, by acquiring at least one set of image data corresponding to bonding point grayscale values of the display panel, and by dividing the display panel into a main display region and sub-display regions through the image data, can determine grayscale compensation values corresponding to pixels in the sub-display region according to the average gamma value of each sub-display region, which can increase precision of a single grayscale compensation of the pixels in the display panel.
-
Patent Agency Ranking
公开(公告)号：US12223874B2
公开(公告)日：2025-02-11
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
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：US12175904B2
公开(公告)日：2024-12-24
申请号：US17281620
申请日：2021-03-15
Inventor： Yizhuo Zhao , Qiusheng Huang , Yuhua Chang , Bin Zhao
IPC: G09G3/20
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：US12067927B2
公开(公告)日：2024-08-20
申请号：US17600309
申请日：2021-08-18
Inventor： Guangxing Xiao , Yuhua Chang , Yu Wu
IPC: G09G3/20
CPC classification number: G09G3/2096 , G09G2340/0428 , G09G2370/08
Abstract: A display apparatus and a mobile terminal are provided. The display apparatus includes a display panel, N2 data drives, and a timing controller. Video data can be transmitted to a plurality of input video interfaces corresponding to the data drives in a time-sharing manner using one output video interface of the timing controller. Therefore, a timing controller with relatively low resolution can be matched with a display panel with relatively high resolution, thereby reducing overall costs of the display apparatus.
-
公开(公告)号：US11735091B2
公开(公告)日：2023-08-22
申请号：US17435043
申请日：2020-12-28
Inventor： Yizhuo Zhao , Yuhua Chang , Bin Zhao
IPC: G09G3/20
CPC classification number: G09G3/2007 , G09G2310/08 , G09G2320/0233 , G09G2320/0247
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：US11694596B2
公开(公告)日：2023-07-04
申请号：US16972891
申请日：2020-10-22
Inventor： Wenfang Li , Yuhua Chang
IPC: G09G3/20
CPC classification number: G09G3/2092 , G09G2310/08 , G09G2330/021
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.
-
-
-
-
-
Search Results
6
records
(took 0.017 seconds)
