公开(公告)号：US11380233B2

公开(公告)日：2022-07-05

申请号：US17197963

申请日：2021-03-10

Applicant: Samsung Display Co., Ltd.

Inventor： Ji Young Lee ,  Yong Bin Kim ,  Gun Woo Yang ,  Hyun Young Choi

IPC: G09G3/00 ,  G09G3/3266 ,  G09G3/3233 ,  G09G3/3275

Abstract: A display device includes: a plurality of pixels connected to scan lines, emission control lines, data lines, and a power line; a scan driver configured to supply a scan signal to the scan lines; and an emission driver configured to supply an emission control signal to the emission control lines, wherein a voltage of a first power supplied to the power line during an inspection period has a pulse form alternating between a first level and a second level that is lower than the first level, and the display device is configured to maintain the voltage of the first power at a third level.

公开(公告)号：US10714563B2

公开(公告)日：2020-07-14

申请号：US16175769

申请日：2018-10-30

Applicant: Samsung Display Co., Ltd.

Inventor： Dong-Hyun Lee ,  Hyeon-Do Park ,  Ha Gyeong Song ,  Hyun Young Choi

IPC: G09G3/20 ,  H01L27/32 ,  H01L27/12 ,  G09G3/36 ,  H01L29/786 ,  G09G3/3233 ,  G09G3/3258 ,  H01B7/28 ,  G02F1/1345 ,  G02F1/1333

Abstract: The present disclosure relates to a display device. The display device according to an exemplary embodiment includes a display area comprising a plurality of pixels, a peripheral area that is disposed outside the display area, and a wiring portion in the peripheral area. The wiring portion includes a plurality of signal lines that are adjacent to each other and are arranged along a first direction and each extends in a second direction that is different from the first direction. The plurality of signal lines are arranged in an order of average voltages of signals respectively transmitted by the plurality of signal lines during one frame.

公开(公告)号：US11282421B2

公开(公告)日：2022-03-22

申请号：US16818348

申请日：2020-03-13

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Gunwoo Yang ,  Yongbin Kim ,  Hyun Young Choi

IPC: G09G3/00 ,  G09G3/3241 ,  G09G3/3266

Abstract: A method of detecting a pixel defect for detecting a defect of a pixel including first to fourth transistors, connected to a data line, and receiving a scan signal and an initialization control signal includes turning on the first through fourth transistors by changing the scan signal and the initialization control signal to have a turn-on voltage level in an inspection period, detecting an inspecting current flowing in a path corresponding to the first through fourth transistors using a current detector that is connected to the data line, determining that a threshold voltage of the second transistor is within a normal range when the inspecting current is within a reference range, and determining that the threshold voltage of the second transistor is out of the normal range when the inspecting current is out of the reference range.

公开(公告)号：US10222664B2

公开(公告)日：2019-03-05

申请号：US15346424

申请日：2016-11-08

Applicant: Samsung Display Co. Ltd.

Inventor： Il Joo Kim ,  Cheol Gon Lee ,  Gun Woo Yang ,  Hyun Young Choi ,  Tae Ho Kang ,  Chol Ho Kim ,  Hae Ryeong Park ,  Dong Il Yoo ,  Yong Woo Lee ,  Mee Hye Jung ,  Joong Gun Chong

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

Abstract: A liquid crystal display device includes a substrate, a first coupling electrode disposed on the substrate, a first insulating layer disposed on the first coupling electrode, a second coupling electrode disposed on the first insulating layer and capacitively coupled to the first coupling electrode, a second insulating layer disposed on the second coupling electrode, and a pixel electrode including first and second sub-pixel electrodes, which are disposed on the second insulating layer and are electrically insulated from each other, where the first sub-pixel electrode is electrically connected to the first coupling electrode via a first contact hole, which is defined in the first and second insulating layers, and the second sub-pixel electrode is electrically connected to the second coupling electrode via a second contact hole which is defined in the second insulating layer.