公开(公告)号：US20250131889A1

公开(公告)日：2025-04-24

申请号：US19000756

申请日：2024-12-24

Applicant: AUO Display Plus Corporation

Inventor： PO-KUN CHEN ,  AI-LING LIN ,  TING-TING KUO

IPC: G09G3/34

Abstract: A method for maintaining optical quality of a display and a display thereof are provided, wherein the display includes a backlight unit, a display unit, and a driving unit, and the method includes: providing a preset gamma value of the display; driving the driving unit based on the preset gamma value of the display to obtain a first display luminance corresponding to the backlight unit according to the preset gamma value; performing local dimming of the backlight unit in the display to obtain a second display brightness value of each area in the measured backlight unit; receiving, by the driving unit, the second display brightness value to compare the second display brightness value with the first display brightness value for obtaining a luminance difference; and providing the brightness difference into the backlight unit for brightness compensation, so that the backlight unit has a third display brightness value.

公开(公告)号：US20250124885A1

公开(公告)日：2025-04-17

申请号：US19001605

申请日：2024-12-26

Applicant: AUO Display Plus Corporation

Inventor： PO-KUN CHEN ,  AI-LING LIN ,  TING-TING KUO ,  REN-WEI HUANG

IPC: G09G3/34 ,  G09G3/20 ,  G09G3/32

Abstract: A display and a backlight compensation method thereof are provided, wherein the display includes a backlight unit and a driving unit, and the backlight compensation method includes: providing a gamma value of the display; performing local dimming of the backlight unit according to the gamma value; obtaining an area peak luminance of each area in the backlight unit; obtaining a windows size of the backlight unit and a corresponding luminance dependency of windows size; obtaining, by the driving unit, a first display luminance corresponding to each area in the backlight unit according to a product of the area peak luminance of each area and the luminance dependency of windows size; and performing luminance compensation in each area of the backlight unit according to the first display luminance. A backlight compensation method that maintains optical quality is achieved, which can maintain brightness and gamma values under different windows sizes.