公开(公告)号：US20200152881A1

公开(公告)日：2020-05-14

申请号：US16559332

申请日：2019-09-03

Applicant: Samsung Display Co., Ltd.

Inventor： Daeyoun CHO ,  Jongwoo PARK ,  Youngtae CHOI ,  Jiho MOON ,  Ju hee LEE ,  Younjae JUNG

IPC: H01L51/00 ,  H01L27/32 ,  G01R31/26

Abstract: A test device includes: a plurality of signal test pads electrically connected to pads of an input sensing unit; a power test pad electrically connected to a power pattern of a display unit; a test circuit configured to apply a test signal to the signal test pads; a voltage generator configured to generate a sensing power voltage; and a ripple controller configured to change a voltage level of the sensing power voltage to apply the sensing power voltage to the power test pad.

公开(公告)号：US20210366891A1

公开(公告)日：2021-11-25

申请号：US17196908

申请日：2021-03-09

Applicant: Samsung Display Co., Ltd.

Inventor： Jungpyo HONG ,  Jongwoo PARK ,  Changwoo BYUN ,  Younjae JUNG

IPC: H01L25/18 ,  H01L27/32 ,  H05K1/18 ,  H05K1/11 ,  H05K1/02

Abstract: An electronic apparatus including a display module having a front surface and a rear surface opposing the front surface and including pixels disposed on the front surface and a display pad connected to the pixels and exposed from the rear surface, a protective film disposed on the rear surface of the display module, a circuit board disposed between the display module and the protective film and having a front surface facing the rear surface of the display module and a rear surface, the circuit board including a first substrate pad connected to the display pad and exposed from the front surface of the circuit board and a second substrate pad exposed from the rear surface of the circuit board, and a driving element connected to the second substrate pad to drive the pixels, in which the second substrate pad and the protective film are spaced apart from each other.

公开(公告)号：US20210328184A1

公开(公告)日：2021-10-21

申请号：US17148405

申请日：2021-01-13

Applicant: Samsung Display Co., Ltd.

Inventor： Younjae JUNG ,  Jongwoo PARK ,  Taeyoung KIM ,  Heejin KIM ,  Youngtae CHOI

IPC: H01L51/52 ,  H01L51/00 ,  H01L51/56

Abstract: A display apparatus includes: a substrate including: a display area including a plurality of thin film transistors, and a plurality of display elements electrically connected to the plurality of thin film transistors; a first non-display area outside the display area; and a second non-display area at least partially surrounded by the display area; a through portion passing through the substrate in a vertical direction in the second non-display area; a metal layer surrounding the through portion at the second non-display area; and a hydrophobic blocking layer on an inner side surface of the through portion. The hydrophobic blocking layer includes an oxide of a metal material of the metal layer.