US 11,854,499 B2
Controller, display device including the same, and method of driving display device using the same
Kihyun Pyun, Gwangmyeong-si (KR); and Kyoungho Lim, Hwaseong-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-si (KR)
Filed by Samsung Display Co., Ltd., Yongin-Si (KR)
Filed on Dec. 26, 2022, as Appl. No. 18/088,715.
Claims priority of application No. 10-2022-0058334 (KR), filed on May 12, 2022.
Prior Publication US 2023/0368743 A1, Nov. 16, 2023
Int. Cl. G09G 3/3291 (2016.01); G09G 3/32 (2016.01); G09G 3/36 (2006.01)
CPC G09G 3/3291 (2013.01) [G09G 3/32 (2013.01); G09G 3/3688 (2013.01); G09G 2310/027 (2013.01); G09G 2320/0276 (2013.01); G09G 2320/0673 (2013.01); G09G 2360/16 (2013.01)] 20 Claims
OG exemplary drawing
 
1. A display device, comprising:
a display panel including at least one block including a plurality of pixels;
a controller configured to:
determine first luminances with respect to a reference grayscale in a second frame after a first frame when the reference grayscale is displayed in the second frame after the reference grayscale is displayed in the first frame;
determine second luminances with respect to the reference grayscale in the second frame when the reference grayscale is displayed in the second frame after a minimum grayscale is displayed in the first frame;
temporally and spatially arrange first data corresponding to the reference grayscale and second data corresponding to the minimum grayscale based on an input grayscale, a gamma value, the first luminances, and the second luminances to generate a data signal;
drive the display panel with a digital driving method using the first data and the second data in a first grayscale section less than or equal to the reference grayscale; and
drive the display panel with an analog driving method in a second grayscale section greater than the reference grayscale; and
a data driver configured to generate a data voltage based on the data signal and output the data voltage to the display panel.