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：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.

公开(公告)号：US20200142231A1

公开(公告)日：2020-05-07

申请号：US16733564

申请日：2020-01-03

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sangyong NO ,  Kwihyun KIM ,  Jiho MOON ,  Keebum PARK

IPC: G02F1/1368 ,  G02F1/1333 ,  G02F1/1335 ,  G02F1/1343 ,  G02F1/1362

Abstract: A liquid crystal display device includes a liquid crystal layer between first and second substrate. The first substrate includes a first and second sub-pixel areas. A first sub-pixel electrode is on the first substrate in the first sub-pixel area, and a first transistor is connected to a gate line, data line, and first sub-pixel electrode on the first substrate. A second sub-pixel electrode is on the first substrate in the second sub-pixel area, and a second transistor is connected to the gate line, the first transistor, and the second sub-pixel electrode. A first storage line is adjacent to one side of the first sub-pixel electrode. A second storage line is spaced from the first storage line and is adjacent to one side of the second sub-pixel electrode. A third transistor is connected to the gate line, second transistor, and second storage line.

公开(公告)号：US20200058241A1

公开(公告)日：2020-02-20

申请号：US16507225

申请日：2019-07-10

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Jiho MOON ,  Dae Youn CHO ,  Jongwoo PARK ,  Ju Hee LEE ,  Youngtae CHOI

IPC: G09G3/00 ,  G09G3/3225 ,  H01L27/32

Abstract: A wiring-disconnection detecting circuit includes a low-power voltage supply, a monitoring wiring, and a wiring-disconnection determiner. The low-power voltage supply supplies a low-power voltage to a low-power voltage wiring that extends along a periphery of a display panel in a normal operating mode of the display panel and supplies a test voltage to the low-power voltage wiring in a wiring-disconnection detecting mode of the display panel. The monitoring wiring includes a first end connected to one point of the low-power voltage wiring and a second end at which a feedback voltage corresponding to the test voltage is output in the wiring-disconnection detecting mode. The wiring-disconnection determiner receives the feedback voltage from the second end, measures an RC delay of the feedback voltage, and determines that the low-power voltage wiring is disconnected when the RC delay is larger than a predetermined reference value.

公开(公告)号：US20170200420A1

公开(公告)日：2017-07-13

申请号：US15234441

申请日：2016-08-11

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sangyong NO ,  Jiho MOON

IPC: H01L27/12 ,  G09G3/34

CPC classification number: G09G3/3275 ,  G02F1/13452 ,  G02F2001/13606 ,  G06F13/1689 ,  G09G3/3677 ,  G09G2300/0426 ,  G09G2320/0219 ,  G11C19/287

Abstract: A display device includes a first substrate and a second substrate opposite to each other, a gate line on the first substrate, a gate driver which is connected to the gate line, a clock line which transmits a clock signal, a connecting line which connects the clock line and the gate driver, a common electrode on the second substrate, the common electrode overlapping the clock line and the connecting line, and a compensation pattern which overlaps the common electrode and extends from the connecting line.

公开(公告)号：US20170108723A1

公开(公告)日：2017-04-20

申请号：US15237673

申请日：2016-08-16

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sangyong NO ,  Kwihyun KIM ,  Jiho MOON ,  Keebum PARK

IPC: G02F1/1368 ,  G02F1/1333 ,  G02F1/1335 ,  G02F1/1362 ,  G02F1/1343

Abstract: A liquid crystal display device includes a liquid crystal layer between first and second substrate. The first substrate includes a first and second sub-pixel areas. A first sub-pixel electrode is on the first substrate in the first sub-pixel area, and a first transistor is connected to a gate line, data line, and first sub-pixel electrode on the first substrate. A second sub-pixel electrode is on the first substrate in the second sub-pixel area, and a second transistor is connected to the gate line, the first transistor, and the second sub-pixel electrode. A first storage line is adjacent to one side of the first sub-pixel electrode. A second storage line is spaced from the first storage line and is adjacent to one side of the second sub-pixel electrode. A third transistor is connected to the gate line, second transistor, and second storage line.