US 12,148,373 B2
Display device
Se Byung Chae, Yongin-si (KR); and Weon Jun Choe, Yongin-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Gyeonggi-Do (KR)
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
Filed on May 3, 2022, as Appl. No. 17/735,990.
Claims priority of application No. 10-2021-0058146 (KR), filed on May 4, 2021.
Prior Publication US 2022/0358881 A1, Nov. 10, 2022
Int. Cl. G09G 3/3233 (2016.01); G09G 3/20 (2006.01)
CPC G09G 3/3233 (2013.01) [G09G 3/2007 (2013.01); G09G 2300/0819 (2013.01); G09G 2300/0842 (2013.01); G09G 2310/0291 (2013.01); G09G 2310/08 (2013.01); G09G 2320/0233 (2013.01)] 13 Claims
OG exemplary drawing
 
1. A display device comprising:
a display panel comprising a first area and a second area distinguished from each other along a scan direction, each of the first and second areas including pixels;
a scan driver configured to sequentially provide scan signals to the display panel along the scan direction;
a data compensator configured to:
detect a pattern in the first area based on a luminance change on an image displayed on the display panel based on image data; and
generate, from the image data, compensated image data by compensating for grayscale values of the image data for a partial area of the second area corresponding to the pattern, wherein the partial area of the second area is located where the pattern in the first area is shifted in the scan direction; and
a data driver configured to:
generate data signals based on the compensated image data; and
provide the data signals to the display panel,
wherein:
the image data comprises first sub-data corresponding to the first area and second sub-data corresponding to the second area; and
the data compensator comprises:
a detection circuit configured to detect the pattern by comparing first line data with second line data adjacent to the first line data among the first sub-data;
a compensation circuit configured to determine compensation values based on a parameter corresponding to a reference value and the first line data;
a scan circuit configured to read third line data corresponding to the first line data from the second sub-data; and
an offset control circuit configured to generate the compensated image data by respectively adding the compensation values to grayscale values included in the third line data.