公开(公告)号：US20190392741A1

公开(公告)日：2019-12-26

申请号：US16391802

申请日：2019-04-23

Applicant: Samsung Display Co., Ltd.

Inventor： Daeyoun CHO ,  Sangkil KIM ,  Hyunho KIM ,  Young-joo NOH ,  Jongwoo PARK ,  Jongwon LEE ,  Juhee LEE ,  Youngtae CHOI

IPC: G09G3/00 ,  G09G3/3225

Abstract: A lighting test device for a display panel includes: a connection part including a first connection test pad, a second connection test pad and a plurality of test pads, which are arranged at an end of the connection part, where the connection part is allowed to be connected to the display panel through the first connection test pad, the second connection test pad and the test pads; and a test circuit which outputs a connection test signal to the first connection test pad, receives a feedback signal through the second connection test pad, and adjusts voltage levels of test signals to be applied to the test pads based on the connection test signal and the feedback signal.

公开(公告)号：US20230165084A1

公开(公告)日：2023-05-25

申请号：US17990847

申请日：2022-11-21

Applicant: Samsung Display Co., Ltd.

Inventor： Daeyoun CHO ,  Jongwoo PARK ,  Youngtae CHOI ,  Sangkil KIM ,  Jiho MOON

IPC: H10K59/131 ,  H10K59/126

CPC classification number: H01L27/3276 ,  H01L27/3272

Abstract: A display apparatus includes a metal plate including an indentation portion indented inward from a side of the metal plate, and a display panel located on the metal plate. The display panel includes a substrate including a display area and a peripheral area surrounding at least part of the display area, a metal wiring located on the substrate, and including a first portion overlapping or adjacent to the indentation portion in a plan view, a gate driving part located on the substrate, overlapping the metal plate in a plan view, and located adjacent to the metal wiring, and a shielding portion located between the substrate and the metal wiring, and overlapping at least a part of the indentation portion in a plan view.