US 12,340,723 B2
Display device and driving method thereof
Seok Jeong Song, Yongin-si (KR); Jong Woong Park, Yongin-si (KR); and Ji Yeon Baik, Yongin-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed by SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed on May 22, 2024, as Appl. No. 18/671,367.
Claims priority of application No. 10-2023-0145025 (KR), filed on Oct. 26, 2023.
Prior Publication US 2025/0140153 A1, May 1, 2025
Int. Cl. G09G 3/20 (2006.01); G09G 3/3233 (2016.01)
CPC G09G 3/2007 (2013.01) [G09G 3/3233 (2013.01); G09G 2300/0819 (2013.01); G09G 2300/0842 (2013.01); G09G 2300/0861 (2013.01); G09G 2310/08 (2013.01); G09G 2320/0257 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A display device comprising:
a pixel;
a grayscale converter that applies a compensation value to an input grayscale to generate an output grayscale; and
a controller that provides a data voltage corresponding to the output grayscale to the pixel,
wherein the grayscale converter generates a first stress value and a second stress value based on the output grayscale, adds the first stress value to a first stress accumulation value to which a first accumulation coefficient is applied to update the first stress accumulation value, adds the second stress value to a second stress accumulation value to which a second accumulation coefficient is applied to update the second stress accumulation value, and generates the compensation value based on the first stress accumulation value and the second stress accumulation value, and
wherein the first accumulation coefficient and the second accumulation coefficient are different from each other.