公开(公告)号：US20180047335A1

公开(公告)日：2018-02-15

申请号：US15624027

申请日：2017-06-15

Applicant: Samsung Display Co., Ltd.

Inventor： Kyung-Ho HWANG ,  Won-Ju SHIN ,  Dong-Hwan LEE ,  Jin-Young JEON

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

CPC classification number: G09G3/3233 ,  G09G3/2092 ,  G09G2300/0819 ,  G09G2300/0842 ,  G09G2300/0861 ,  G09G2310/0262 ,  G09G2310/061 ,  G09G2320/0233 ,  G09G2320/0247 ,  G09G2320/029 ,  G09G2330/028

Abstract: An organic light emitting display device includes a display panel including pixels that includes an organic light emitting diode that emits light based on a driving current, a data driver providing a data signal to the pixels through a data line, a scan driver providing a scan signal to the pixels through a scan line, an emission control driver providing an emission control signal to the pixels through an emission control line, a first power provider providing a first high power voltage to the pixels through a first power providing line and a second power provider providing a second high power voltage to the pixels through a second power providing line and coupled to the first power provider. The second power provider includes a static current circuit that maintains the driving current having uniform value when the display panel is operated in a low frequency driving mode.

公开(公告)号：US20170116922A1

公开(公告)日：2017-04-27

申请号：US15236731

申请日：2016-08-15

Applicant: Samsung Display Co., Ltd.

Inventor： Yeon-Shil JUNG ,  Hyung-Min SHIN ,  Ji-Tae KIM ,  Tae-Wook KIM ,  Sung-Un PARK ,  Kyung-Ho HWANG

IPC: G09G3/3258

CPC classification number: G09G3/3258 ,  G09G2310/08 ,  G09G2330/021 ,  G09G2330/022 ,  G09G2330/028 ,  G09G2340/0435

Abstract: An organic light emitting display device includes a display panel, a scan driver, a data driver, a power supply which provides a first voltage to a first power terminal of the pixel and selectively provides the first voltage or a second voltage to a second power terminal of the pixel, and a controller which selects one of a normal driving mode and a power saving mode as a panel driving mode where the power supply provides the second voltage to the second power terminal of the pixel in a first period of one frame period and provides the first voltage to the second power terminal of the pixel in a second period of one frame period when the panel driving mode is the power saving mode.