US 11,908,401 B2
Driving controller, display apparatus including the same and method of driving display panel using the same
Eunjin Choi, Yongin-si (KR); Wonjin Seo, Seoul (KR); and Kihyun Pyun, Gwangmyeong-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed on Mar. 13, 2023, as Appl. No. 18/183,124.
Application 18/183,124 is a continuation of application No. 17/233,260, filed on Apr. 16, 2021, granted, now 11,605,338.
Claims priority of application No. 10-2020-0045766 (KR), filed on Apr. 16, 2020.
Prior Publication US 2023/0222970 A1, Jul. 13, 2023
This patent is subject to a terminal disclaimer.
Int. Cl. G09G 3/3208 (2016.01)
CPC G09G 3/3208 (2013.01) [G09G 2320/0233 (2013.01); G09G 2320/04 (2013.01); G09G 2320/043 (2013.01); G09G 2320/046 (2013.01); G09G 2320/048 (2013.01); G09G 2320/062 (2013.01); G09G 2320/0686 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A driving controller comprising:
a logo determiner configured to determine whether or not input image data includes a logo;
a logo grayscale value calculator configured to calculate a logo grayscale value of a logo area corresponding to the logo in response to the input image data including the logo;
a light emitting element life expectancy determiner configured to determine a life expectancy of a light emitting element corresponding to the logo area;
a compensation reference grayscale value generator configured to determine a compensation reference grayscale value according to the life expectancy of the light emitting element corresponding to the logo area; and
a logo luminance compensator configured to compare the logo grayscale value to the compensation reference grayscale value to determine whether or not to compensate a luminance of the logo area,
wherein the logo determiner is configured to determine that the input image data includes the logo in response to a fixed image being maintained over a reference time period and a size of the fixed image being included in a reference size range.