公开(公告)号：US20240386849A1

公开(公告)日：2024-11-21

申请号：US18541247

申请日：2023-12-15

Applicant: Samsung Display Co., LTD.

Inventor： Gun Woo YANG ,  Hyun Young CHOI ,  Hae Ryeong PARK

IPC: G09G3/3233 ,  H01L27/12

Abstract: A pixel includes: a first transistor including a gate electrode connected to a first node, a first electrode connected to a first power line for receiving a first driving power voltage via a second node, and a second electrode connected to a third node; a light-emitting element including a first electrode connected to the third node, and a second electrode connected to a second power line; a second transistor connected between a data line and the second node, and including a gate electrode connected to a first scan line; and a third transistor connected between the first node and a third power line for receiving an initialization power voltage. The second transistor is set to a turn-on state during at least a portion of a turn-on period of the third transistor. The initialization power voltage is set to be lower than a data signal.

公开(公告)号：US20210335167A1

公开(公告)日：2021-10-28

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

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：US20180197475A1

公开(公告)日：2018-07-12

申请号：US15851618

申请日：2017-12-21

Applicant: Samsung Display Co., Ltd.

Inventor： Gun Woo YANG ,  Gi Chang LEE ,  Won Jun LEE ,  Won Gyun KIM

IPC: G09G3/3233 ,  G09G3/3266 ,  G09G3/3275 ,  H01L27/32

Abstract: A pixel capable of improving display quality may include an organic light emitting diode, a first transistor configured to control, in response to a voltage of a first node, current flowing from a first driving power source to a second driving power source via the organic light emitting diode, a second transistor coupled between the first node and a second electrode of the first transistor, and configured to be turned on when a scan signal is supplied to a scan line, a storage capacitor coupled between an initialization power source and the first node, a first capacitor coupled between the second electrode of the first transistor and a data line, and a second capacitor coupled between the first node and the second electrode of the first transistor. A display including such pixels also is disclosed.

公开(公告)号：US20170322468A1

公开(公告)日：2017-11-09

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

CPC classification number: G02F1/134336 ,  G02F1/133345 ,  G02F1/134309 ,  G02F1/136227 ,  G02F1/136286 ,  G02F1/1368 ,  G02F2001/134345 ,  G02F2001/134354 ,  G02F2201/123 ,  G02F2201/40

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.