US 12,412,520 B2
Display device, drive controller, and display device driving method
Donggyu Lee, Yongin-si (KR); Sehyuk Park, Yongin-si (KR); Jin-Wook Yang, Yongin-si (KR); and Jae-Hyeon Jeon, Yongin-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Gyeonggi-Do (KR)
Filed by Samsung Display Co., LTD., Yongin-si (KR)
Filed on Jun. 26, 2024, as Appl. No. 18/755,073.
Claims priority of application No. 10-2023-0127019 (KR), filed on Sep. 22, 2023.
Prior Publication US 2025/0104608 A1, Mar. 27, 2025
Int. Cl. G09G 3/32 (2016.01); G09G 3/3225 (2016.01)
CPC G09G 3/32 (2013.01) [G09G 3/3225 (2013.01); G09G 2310/0286 (2013.01); G09G 2310/08 (2013.01); G09G 2320/0247 (2013.01); G09G 2320/0276 (2013.01); G09G 2330/021 (2013.01); G09G 2330/028 (2013.01); G09G 2360/16 (2013.01)] 28 Claims
OG exemplary drawing
 
1. A display device comprising:
a display panel including a plurality of pixels, wherein the display panel is configured to display an image corresponding to each of a plurality of frames; and
a drive controller configured to receive an image signal and to drive the plurality of frames at a plurality of driving frequencies,
wherein the drive controller includes:
a representative frequency calculator configured to output a representative frequency based on “n” driving frequencies of frames preceding one frame from among the plurality of frames;
a compensation signal calculator configured to output a compensation signal based on the representative frequency and a counting number in the one frame; and
a data compensation unit configured to receive the image signal and to output a compensation data signal by adding a gray of the image signal and a gray value based on a data correction lookup table in which the gray value is stored,
wherein luminance of the image is controlled based on the compensation signal and the compensation data signal.