US 11,929,004 B2
Method of driving a display panel that includes a first display region having a first resolution and a second display region being adjacent to the first display region and having a second resolution higher than the first resolution
Jong-Woong Park, Seongnam-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by Samsung Display Co., Ltd., Yongin-Si (KR)
Filed on Dec. 27, 2022, as Appl. No. 18/089,256.
Application 18/089,256 is a division of application No. 16/997,844, filed on Aug. 19, 2020, granted, now 11,568,782.
Claims priority of application No. 10-2019-0106389 (KR), filed on Aug. 29, 2019.
Prior Publication US 2023/0138751 A1, May 4, 2023
Int. Cl. G09G 3/20 (2006.01); H04N 23/57 (2023.01)
CPC G09G 3/2003 (2013.01) [G09G 3/2007 (2013.01); G09G 2320/0233 (2013.01); G09G 2320/0242 (2013.01); G09G 2320/046 (2013.01); G09G 2320/0686 (2013.01); G09G 2340/0407 (2013.01); H04N 23/57 (2023.01)] 6 Claims
OG exemplary drawing
 
1. A method of driving a display panel that includes a first display region having a first resolution and a second display region being adjacent to the first display region and having a second resolution higher than the first resolution, the method comprising:
determining a maximum luminance data among first data that are applied to the first display region;
calculating a first candidate compensation gain based on (a) a luminance gain corresponding to a first value obtained by dividing a second reference luminance of the second display region by a first reference luminance of the first display region and (b) a gamma value for the display panel;
calculating a second candidate compensation gain corresponding to a second value obtained by dividing a maximum gray-level for the display panel by a gray-level of the maximum luminance data;
determining a smaller value between the first candidate compensation gain and the second candidate compensation gain as a compensation gain;
generating first compensated data by applying the compensation gain to the first data;
displaying a first image in the first display region based on the first compensated data; and
displaying a second image in the second display region based on second data that are applied to the second display region.