公开(公告)号：US20190206334A1

公开(公告)日：2019-07-04

申请号：US16100132

申请日：2018-08-09

Applicant: Samsung Display Co., Ltd.

Inventor： Won Jun Lee ,  Chol Ho Kim ,  Gun Woo Yang

IPC: G09G3/3291 ,  G09G3/3266 ,  G09G3/3233 ,  H01L27/32

CPC classification number: G09G3/3291 ,  G09G3/3233 ,  G09G3/3266 ,  G09G2310/08 ,  H01L27/3276

Abstract: An organic light-emitting display device and a method of driving the same. The organic light-emitting display device is driven, with one frame being divided into a first period, a second period, a third period, and a fourth period, and includes pixels coupled to scan lines and data lines, a first power supply configured to supply first driving power, wherein the first driving power is set to a first voltage during the first period and the fourth period and a second voltage lower than the first voltage during the second period and the third period, a second power supply configured to supply second driving power. The second driving power is set to a third voltage during the first to third periods and to a fourth voltage lower than the third voltage during the fourth period.

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.

公开(公告)号：US10529284B2

公开(公告)日：2020-01-07

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 ,  H01L27/12

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：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：US11069303B2

公开(公告)日：2021-07-20

申请号：US16100132

申请日：2018-08-09

Applicant: Samsung Display Co., Ltd.

Inventor： Won Jun Lee ,  Choi Ho Kim ,  Gun Woo Yang

IPC: G09G3/3291 ,  G09G3/3266 ,  H01L27/32 ,  G09G3/3233 ,  G09G3/20

Abstract: An organic light-emitting display device and a method of driving the same. The organic light-emitting display device is driven, with one frame being divided into a first period, a second period, a third period, and a fourth period, and includes pixels coupled to scan lines and data lines, a first power supply configured to supply first driving power, wherein the first driving power is set to a first voltage during the first period and the fourth period and a second voltage lower than the first voltage during the second period and the third period, a second power supply configured to supply second driving power. The second driving power is set to a third voltage during the first to third periods and to a fourth voltage lower than the third voltage during the fourth period.