US 12,484,389 B2
Display device
Goeun Cha, Suwon-si (KR); Ilnam Kim, Hwaseongsi (KR); Kyungtea Park, Seoul (KR); Jonghyun Lee, Suwon-si (KR); Keumdong Jung, Seoul (KR); and Kangbin Jo, Suwon-si (KR)
Assigned to Samsung Display Co., Ltd., Yongin-Si (KR)
Filed by Samsung Display Co., Ltd., Yongin-Si (KR)
Filed on Feb. 15, 2022, as Appl. No. 17/671,826.
Claims priority of application No. 10-2021-0050428 (KR), filed on Apr. 19, 2021.
Prior Publication US 2022/0336561 A1, Oct. 20, 2022
This patent is subject to a terminal disclaimer.
Int. Cl. H10K 59/126 (2023.01); G06V 40/13 (2022.01); G09G 3/3266 (2016.01); H04N 25/00 (2023.01); H04N 25/47 (2023.01); H04N 25/76 (2023.01); H10K 59/131 (2023.01); H10K 59/35 (2023.01); H10K 59/60 (2023.01); H10K 59/65 (2023.01)
CPC H10K 59/126 (2023.02) [G06V 40/1318 (2022.01); G09G 3/3266 (2013.01); H04N 25/00 (2023.01); H04N 25/47 (2023.01); H04N 25/76 (2023.01); H10K 59/131 (2023.02); H10K 59/353 (2023.02); H10K 59/60 (2023.02); H10K 59/65 (2023.02)] 28 Claims
OG exemplary drawing
 
1. A display device, comprising:
a plurality of pixels, each of which includes an emission element and a pixel driving circuit connected to the emission element, the pixel driving circuit controlling an operation of the emission element in response to a first scan signal and a second scan signal; and
a plurality of sensors, each of which includes a light sensing element and a sensor driving circuit connected the light sensing element, the sensor driving circuit outputting a sensing signal in response to the first scan signal and the second scan signal,
wherein the sensor driving circuit comprises:
a reset transistor including a first electrode receiving a reset voltage, a second electrode connected to a first sensing node, and a third electrode receiving the first scan signal;
an amplifying transistor including a first electrode receiving a first driving voltage, a second electrode connected to a second sensing node, and a third electrode connected to the first sensing node; and
an output transistor including a first electrode connected to the second sensing node, a second electrode connected to a readout line, and a third electrode receiving the second scan signal.