US 11,967,267 B2
Display device
Hyo Sun Kim, Yongin-si (KR); Oh Sang Kwon, Ulsan (KR); Seong Gyu Choe, Ulsan (KR); Chang Yeong Han, Ulsan (KR); Min Kyung Kim, Yongin-si (KR); You Ra Kim, Yongin-si (KR); Eun Jung Lee, Yongin-si (KR); and Hyung Suk Hwang, Yongin-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-Si (KR); and UNIST (Ulsan National Institute Of Science and Technology), Ulju-Gun Ulsan (KR)
Filed by Samsung Display Co., Ltd., Yongin-Si (KR); and UNIST (ULSAN NATIONAL INSTITUTE OF SCIENCE AND TECHNOLOGY), Ulsan (KR)
Filed on May 2, 2023, as Appl. No. 18/142,537.
Claims priority of application No. 10-2022-0093468 (KR), filed on Jul. 27, 2022.
Prior Publication US 2024/0038137 A1, Feb. 1, 2024
Int. Cl. G09G 3/20 (2006.01)
CPC G09G 3/2096 (2013.01) [G09G 2320/0247 (2013.01); G09G 2360/145 (2013.01); G09G 2360/16 (2013.01)] 16 Claims
OG exemplary drawing
 
1. A display device comprising:
a display panel including pixels;
an optical sensor configured to measure an optical waveform of the display panel;
a timing controller configured to generate image data based on input image data and generate a first control signal and a second control signal based on a control signal;
a scan driver configured to supply a scan signal to the pixels based on the first control signal;
a data driver configured to generate a data signal corresponding to the image data based on the second control signal and the image data to supply it to the pixels; and
an image controller configured to detect optical characteristic information of the display panel based on the optical waveform, determine a threshold value based on the optical waveform, an image refresh rate of the display panel, and grayscale values corresponding to the input image data, and generate a refresh rate control signal for controlling the image refresh rate based on the optical characteristic information and the threshold value,
wherein the timing controller controls the image refresh rate of the display panel based on the refresh rate control signal.