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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 12484389 B1

PDFFull Text
Date of Patent:
Nov. 25, 2025

Filed:

Feb. 15, 2022

Display device

Applicant:

Samsung Display Co., Ltd., Yongin-Si, KR;

Inventors:

Goeun Cha, Suwon-si, KR;

Ilnam Kim, Hwaseongsi, KR;

Kyungtea Park, Seoul, KR;

Jonghyun Lee, Suwon-si, KR;

Keumdong Jung, Seoul, KR;

Kangbin Jo, Suwon-si, KR;

Assignee:

Samsung Display Co., Ltd., Yongin-Si, KR;

Attorney:

Innovation Counsel LLP

Primary Examiner:

Tom V Sheng

Int. Cl.
CPC ...
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);
U.S. Cl.
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);
Abstract

A display device may include a pixel and a sensor. The pixel may include an emission element and a pixel driving circuit. The pixel driving circuit may receive a first scan signal and a second scan signal. The sensor may include a light sensing element and a sensor driving circuit. The sensor driving circuit may include a reset transistor, an amplifying transistor, and an output transistor. The reset transistor may receive a reset voltage and the first scan signal and be connected to a first sensing node. The amplifying transistor may receive a first driving voltage and be connected between the first sensing node and a second sensing node. The output transistor may receive the second scan signals and be connected between the second sensing node and a readout line.

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