US 11,929,032 B2
Display device
Hyun Dae Lee, Hwaseong-si (KR); Il Nam Kim, Hwaseong-si (KR); Seung Hyun Moon, Suwon-si (KR); Dong Wook Yang, Suwon-si (KR); Kang Bin Jo, Suwon-si (KR); and Go Eun Cha, Suwon-si (KR)
Assigned to SAMSUNG DISPLAY CO., LTD., Yongin-si (KR)
Filed by Samsung Display Co., LTD., Yongin-si (KR)
Filed on Aug. 15, 2022, as Appl. No. 17/887,973.
Claims priority of application No. 10-2021-0158394 (KR), filed on Nov. 17, 2021.
Prior Publication US 2023/0154411 A1, May 18, 2023
Int. Cl. G06V 40/13 (2022.01); G09G 3/3266 (2016.01)
CPC G09G 3/3266 (2013.01) [G06V 40/1318 (2022.01); G09G 2300/0828 (2013.01); G09G 2310/0294 (2013.01); G09G 2310/061 (2013.01); G09G 2310/08 (2013.01); G09G 2360/14 (2013.01)] 21 Claims
OG exemplary drawing
 
1. A display device comprising:
a display panel comprising:
scan lines;
sensing lines;
pixels electrically connected to each of the scan lines; and
photo sensors electrically connected to each of the scan lines and the sensing lines;
a scan driver which outputs scan signals to the scan lines according to a scan control signal;
a timing controller which outputs the scan control signal to the scan driver; and
a readout circuit which receives light sensing signals of the photo sensors from the sensing lines, wherein
the timing controller sets a frame frequency of the scan control signal to a first frame frequency in a first mode in which the display panel displays an image, and
the timing controller sets the frame frequency of the scan control signal to a second frame frequency different from the first frame frequency in a second mode in which the photo sensors sense a fingerprint, wherein
the first frame frequency and the second frame frequency are non-zero.