公开(公告)号：US20170199619A1

公开(公告)日：2017-07-13

申请号：US15384700

申请日：2016-12-20

Applicant: Samsung Display Co., Ltd.

Inventor： Kang-Won LEE ,  Young-Sik KIM ,  Hee-Woong PARK ,  Young-Seok YOO ,  Jeong-Heon LEE ,  Sung-Hwan KIM ,  Hyung-Chul KIM ,  Choon-Hyop LEE ,  Hyun-Jae LEE

IPC: G06F3/041 ,  G06F3/044

CPC classification number: G06F3/044 ,  G06F3/0412 ,  G06F2203/04102 ,  G06F2203/04111

Abstract: A flexible touch sensing unit includes a substrate including a plane region and a bending region, a plurality of sensing electrodes disposed on the substrate, a plurality of sensing lines surrounding the plurality of sensing electrodes and electrically connected to the plurality of sensing electrodes, and a damage prevention layer disposed in the bending region. Cracks on the sensing electrodes and the sensing lines which are disposed in the bending region may be prevented by the damage prevention layer in the bending region. A resulting flexible display device using the flexible touch sensing unit may be thinner by omission of a flexibility enhancing layer.

公开(公告)号：US20170301295A1

公开(公告)日：2017-10-19

申请号：US15349284

申请日：2016-11-11

Applicant: Samsung Display Co., Ltd

Inventor： Jun-Hyun PARK ,  Sung-Hwan KIM ,  Kyoung-Ju SHIN ,  Sang-Uk LIM ,  Yang-Hwa CHOI

IPC: G09G3/3266 ,  G09G3/3258 ,  G09G3/3291

CPC classification number: G09G3/3266 ,  G09G3/3258 ,  G09G3/3291 ,  G09G2300/0809 ,  G09G2300/0861 ,  G09G2310/0286 ,  G09G2320/043

Abstract: An emission control driver includes a plurality of stages configured to output a plurality of emission control signals, respectively. Each stage includes an input circuit for receiving a previous emission control signal from one of previous stages or a vertical start signal, and configured to control a voltage of a first node and a voltage of a second node in response to a first clock signal; a stabilizing circuit for stabilizing the voltage of the first node in response to the voltage of the second node and a second clock signal; a voltage adjusting circuit connected between the second node and a third node, configured for boosting the voltage of the second node, and controlling the boosted voltage of the second node; and an output circuit configured to control an emission control signal in response to the voltage of the first node and a voltage of the third node.

公开(公告)号：US20170193896A1

公开(公告)日：2017-07-06

申请号：US15394306

申请日：2016-12-29

Applicant: Samsung Display Co., Ltd

Inventor： Sung-Hwan KIM

IPC: G09G3/325

CPC classification number: G09G3/325 ,  G09G3/3233 ,  G09G2300/0819 ,  G09G2300/0861 ,  G09G2310/08 ,  G09G2320/0285 ,  G09G2320/029 ,  G09G2320/0295 ,  G09G2320/043 ,  G09G2320/045 ,  G09G2330/12

Abstract: A pixel circuit includes an OLED, an OLED driving block, a first switch, and a second switch. The OLED has an anode and a cathode connected to ELVSS. The OLED driving block connected between the anode and ELVDD controls a driving current flowing through the OLED, a first switch is turned on or off responding to a first control-signal and transfers a sensing-bias-voltage to the anode when turned on. The second switch is turned on or off responding to a second control-signal and transfers a deterioration-sensing-voltage to the anode when turned on. In a display mode, the first and second switches are turned off. In a deterioration sensing mode, the first switch is turned on and the second switch is turned off during a first time, and the first switch is turned off and the second switch is turned on during a second time.