US 12,380,864 B2
Backlight calibration method and device, and computer equipment
Lu Liu, Guangdong (CN); and Youngil Ban, Guangdong (CN)
Assigned to TCL China Star Optoelectronics Technology Co., Ltd., Shenzhen (CN)
Appl. No. 17/623,683
Filed by TCL China Star Optoelectronics Technology Co., Ltd., Guangdong (CN)
PCT Filed Dec. 21, 2021, PCT No. PCT/CN2021/140180
§ 371(c)(1), (2) Date Dec. 29, 2021,
PCT Pub. No. WO2023/103085, PCT Pub. Date Jun. 15, 2023.
Claims priority of application No. 202111507872.3 (CN), filed on Dec. 10, 2021.
Prior Publication US 2024/0371332 A1, Nov. 7, 2024
Int. Cl. G09G 3/34 (2006.01)
CPC G09G 3/3406 (2013.01) [G09G 2320/0693 (2013.01)] 14 Claims
OG exemplary drawing
 
1. A backlight calibration method, wherein the backlight calibration method is used in display equipment, a detector is disposed in the display equipment, the detector is disposed toward backlight sources of the display equipment to detect backlight parameters of the backlight sources, wherein the method comprises:
obtaining the backlight parameters of the backlight sources;
determining a backlight type corresponding to the backlight parameters; and
performing backlight calibration on the display equipment according to the backlight type;
wherein the detector is disposed on a backlight control board of the display equipment, the backlight control board is disposed in a non-display region of the display equipment, and the display equipment comprises a plurality of backlight sources; and wherein obtaining the backlight parameters of the backlight sources comprises:
driving all the backlight sources in a predetermined region directly faced by the detector;
obtaining a bright image of the predetermined region; and
determining the backlight parameters according to the bright image;
wherein the backlight parameters comprise a bright area proportion, and wherein determining the backlight type corresponding to the backlight parameters comprises:
if the bright area proportion is less than a predetermined proportion threshold value, then the bright area proportion corresponds to a first backlight type; and
if the bright area proportion is greater than the predetermined proportion threshold value, then the bright area proportion corresponds to a second backlight type.