公开(公告)号：US20190244000A1

公开(公告)日：2019-08-08

申请号：US16119500

申请日：2018-08-31

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jungha SON ,  Jihun RYU ,  Wonsang PARK ,  Taekyung AHN ,  Byunghan YOO ,  Hanyung JUNG ,  Chaungi CHOI

IPC: G06K9/00 ,  H01L27/32

Abstract: A fingerprint sensing unit includes a substrate; a buffer layer disposed on the substrate; a thin film transistor disposed on the buffer layer; an insulating layer disposed on the buffer layer and that has an opening that exposes at least a portion of the buffer layer; and a sensing electrode disposed on the portion of the buffer layer that is exposed by the opening, where the sensing electrode is connected to the thin film transistor. A display device that includes the fingerprint sensing unit can reduce internal reflection of external light