US 12,482,405 B2
Spliced display device and brightness control method thereof
Yueh-Chi Wu, Hsinchu (TW); Chia-Jung Wu, Hsinchu (TW); Ti-Kuei Yu, Hsinchu (TW); and Ya-Ling Hsu, Hsinchu (TW)
Assigned to AUO CORPORATION, Hsinchu (TW)
Filed by AUO Corporation, Hsinchu (TW)
Filed on Oct. 9, 2024, as Appl. No. 18/910,645.
Claims priority of application No. 113104268 (TW), filed on Feb. 2, 2024.
Prior Publication US 2025/0252887 A1, Aug. 7, 2025
Int. Cl. G09G 3/22 (2006.01); G09G 3/20 (2006.01); G09G 3/32 (2016.01); G09G 3/36 (2006.01); G09G 5/14 (2006.01)
CPC G09G 3/22 (2013.01) [G09G 3/2007 (2013.01); G09G 3/32 (2013.01); G09G 3/36 (2013.01); G09G 3/2092 (2013.01); G09G 3/3648 (2013.01); G09G 5/14 (2013.01); G09G 2300/026 (2013.01); G09G 2320/0233 (2013.01); G09G 2320/0252 (2013.01); G09G 2360/04 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A brightness control method of a spliced display device, wherein the spliced display device comprises a plurality of display units, each of the display units comprises a light-emitting diode (LED) display area and a liquid crystal display (LCD) area, and the method comprises:
obtaining a current grayscale value of a current frame in the LCD area;
reading a target grayscale value of a target frame in the LCD area, wherein the target frame is a frame next to the current frame;
obtaining a response time required to convert the current grayscale value into the target grayscale value of the LCD area; and
adjusting a target grayscale value of the LED display area to an actual grayscale value during the target frame according to the response time;
wherein during the target frame, a brightness emitted by the LED display area based on the actual grayscale value is the same as the brightness emitted by the LCD area based on the target grayscale value.