公开(公告)号：US11545627B2

公开(公告)日：2023-01-03

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: G01R31/26 ,  H01L51/00 ,  H01L27/32

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：US20200313101A1

公开(公告)日：2020-10-01

申请号：US16718956

申请日：2019-12-18

Applicant: Samsung Display Co., Ltd.

Inventor： Younjae Jung ,  Jongwoo Park ,  Taeyoung Kim ,  Hyojung Kim ,  Kiju Im ,  Hyuncheol Hwang

IPC: H01L51/00 ,  H01L51/52 ,  H01L27/32

Abstract: A display panel includes: a plurality of display elements arranged in a display area around an opening, each of the display elements including a pixel electrode, an emission layer above the pixel electrode, and an opposite electrode above the emission layer; and a groove between the opening and the display area, wherein the groove includes a first recessed portion having a first width in a first layer, and a second recessed portion in a second layer on the first layer and having a second width greater than the first width, and a side surface of the groove includes steps.

公开(公告)号：US20230113586A1

公开(公告)日：2023-04-13

申请号：US17808052

申请日：2022-06-21

Applicant: Samsung Display Co., Ltd.

Inventor： Jungpyo Hong ,  Sora Bak ,  Jongwoo Park ,  Younjae Jung

IPC: H01L51/56 ,  H01L51/52 ,  B41J3/407

Abstract: An apparatus for manufacturing a display apparatus is provided. The apparatus includes a stage that has a first surface and a second surface. A display substrate is arranged on the first surface, and the second surface is opposite to the first surface. The apparatus also includes a jig facing the second surface, a heat transfer unit arranged on the jig and including a protrusion pin protruding toward the second surface, and a laser unit configured to irradiate a laser beam to the heat transfer unit.

公开(公告)号：US11751423B2

公开(公告)日：2023-09-05

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: H10K50/844 ,  H10K71/00 ,  H10K77/10 ,  H10K59/12

CPC classification number: H10K50/844 ,  H10K71/00 ,  H10K77/10 ,  H10K59/12 ,  H10K59/1201

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.

公开(公告)号：US11462529B2

公开(公告)日：2022-10-04

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 ,  H05K1/02 ,  H05K1/11 ,  H05K1/18 ,  H01L23/00 ,  H01L51/00

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：US11335867B2

公开(公告)日：2022-05-17

申请号：US16718956

申请日：2019-12-18

Applicant: Samsung Display Co., Ltd.

Inventor： Younjae Jung ,  Jongwoo Park ,  Taeyoung Kim ,  Hyojung Kim ,  Kiju Im ,  Hyuncheol Hwang

IPC: H01L51/00 ,  H01L27/32 ,  H01L51/52

Abstract: A display panel includes: a plurality of display elements arranged in a display area around an opening, each of the display elements including a pixel electrode, an emission layer above the pixel electrode, and an opposite electrode above the emission layer; and a groove between the opening and the display area, wherein the groove includes a first recessed portion having a first width in a first layer, and a second recessed portion in a second layer on the first layer and having a second width greater than the first width, and a side surface of the groove includes steps.