公开(公告)号：US11783617B2

公开(公告)日：2023-10-10

申请号：US17296856

申请日：2019-06-03

Applicant: LG Display Co., Ltd. ,  Industry-University Cooperation Foundation Hanyang University

Inventor： Byong Deok Choi ,  Yong Sang Yoo ,  Yong Duck Kim ,  Jeongmin Moon ,  Soonshin Jung ,  Moonbong Song ,  Kiseok Chang ,  Jihwan Jung

IPC: G06V40/13 ,  G09G3/3208 ,  G09G3/3233

CPC classification number: G06V40/1318 ,  G09G3/3208 ,  G09G3/3233 ,  G09G2300/0809

Abstract: Disclosed are a pixel circuit comprising an optical fingerprint sensing circuit, a method of driving a pixel circuit comprising an optical fingerprint sensing circuit, and a display device comprising a pixel circuit comprising an optical fingerprint sensing circuit. According to the present disclosure, the pixel circuit comprising an optical fingerprint sensing circuit comprises a pixel control circuit, the pixel control circuit comprising: a first photodetector which receives a light and generates a first signal; a second photodetector which receives a light and generates a second signal; and a self-illuminator which receives differential signals of the first signal and second signal and outputs an output signal, includes at least one transistor component and at least one capacitor component, and outputs a light on the basis of a data signal.