US 11,741,893 B2
Display device and method of driving display device
Changnoh Yoon, Seoul (KR); Sangan Kwon, Cheonan-si (KR); Soon-Dong Kim, Osan-si (KR); and Taehoon Kim, Hwaseong-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Gyeonggi-Do (KR)
Filed by Samsung Display Co., Ltd., Yongin-si (KR)
Filed on Jul. 14, 2022, as Appl. No. 17/864,798.
Claims priority of application No. 10-2021-0141824 (KR), filed on Oct. 22, 2021.
Prior Publication US 2023/0129065 A1, Apr. 27, 2023
Int. Cl. G09G 5/00 (2006.01); G09G 3/3225 (2016.01)
CPC G09G 3/3225 (2013.01) [G09G 2300/0842 (2013.01); G09G 2320/0271 (2013.01); G09G 2320/0626 (2013.01)] 19 Claims
OG exemplary drawing
 
1. A display device comprising:
a display panel including a plurality of pixels;
a power supply unit which generates a first initialization voltage and a second initialization voltage and provides the first initialization voltage and the second initialization voltage to the plurality of pixels; and
a low frequency offset compensator which selectively applies an offset to the second initialization voltage when the display panel is driven at a low frequency,
wherein the low frequency offset compensator measures a number of pixel data corresponding within a preset low gray level range based on gray level information of the pixel data included in image data.