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.:
Date of Patent:
Sep. 26, 2023
Filed:
Jun. 03, 2019
Lg Display Co., Ltd., Seoul, KR;
Industry-university Cooperation Foundation Hanyang University, Seoul, KR;
Byong Deok Choi, Seoul, KR;
Yong Sang Yoo, Seoul, KR;
Yong Duck Kim, Seoul, KR;
Jeongmin Moon, Paju-si, KR;
Soonshin Jung, Paju-si, KR;
Moonbong Song, Paju-si, KR;
Jihwan Jung, Paju-si, KR;
Kiseok Chang, Paju-si, KR;
LG Display Co., Ltd., Seoul, KR;
Industry-University Cooperation Foundation Hanyang University, Seoul, KR;
Abstract
The present disclosure relates to a pixel circuit including an optical fingerprint sensing circuit, a method for driving a pixel circuit including the optical fingerprint sensing circuit, and a display device including the pixel circuit including the optical fingerprint sensing circuit. The pixel circuit includes: a self-light emitting element which displays images by a driving current controlled by a driving transistor; and a light-receiving element which receives light emitted from the self-light emitting element and reflected through a fingerprint of a user and converts it into a photocurrent. The driving transistor functions as a buffer which transmits an output voltage of the light-receiving element to an output line of the pixel circuit.