公开(公告)号：US20180068612A1

公开(公告)日：2018-03-08

申请号：US15605814

申请日：2017-05-25

Applicant: Samsung Display Co., Ltd.

Inventor： Sung-Yeon CHO ,  Kwan-Ho Kim ,  Jin-Hee Park ,  Ho-Seok Son ,  Jae-Hyung Cho

IPC: G09G3/3208

CPC classification number: G09G3/3208 ,  G09G3/20 ,  G09G2320/0223 ,  G09G2330/021 ,  G09G2330/028 ,  G09G2340/0464 ,  G09G2360/16 ,  G09G2380/02

Abstract: A rollable display device including a rollable display panel including a plurality of pixels each having an organic light emitting element, a panel driving circuit configured to drive the rollable display panel, a power supplying circuit configured to supply a high power voltage and a low power voltage to the rollable display panel, such that the organic light emitting element emits light based on the high power voltage and the low power voltage, and an ohmic drop compensation margin changing circuit configured to sense a degree that the rollable display panel is unrolled and change an ohmic drop compensation margin of the low power voltage to compensate ohmic drops based on the degree that the rollable display panel is unrolled.

公开(公告)号：US20190213943A1

公开(公告)日：2019-07-11

申请号：US16354398

申请日：2019-03-15

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Seung-Jae LEE ,  Tae-Jin KIM ,  Sung-Yeon CHO ,  Myung-Ho LEE

IPC: G09G3/20 ,  G09G3/3266 ,  G09G3/36 ,  G06F1/16

CPC classification number: G09G3/2092 ,  G06F1/1652 ,  G09G3/20 ,  G09G3/3266 ,  G09G3/3611 ,  G09G2310/0267 ,  G09G2310/0286 ,  G09G2340/0407 ,  G09G2380/02

Abstract: A gate driver includes a plurality of shift registers and a plurality of connection controllers. The shift registers are connected to a plurality of gate lines of a stretchable display panel, respectively. The shift registers are grouped into a plurality of shift register groups. N adjacent shift registers constitute each of the shift register groups, where N is an integer greater than or equal to 2. The connection controllers change a connection structure of the N adjacent shift registers included in the each of the shift register groups according to whether the stretchable display panel is stretched.

公开(公告)号：US20170270849A1

公开(公告)日：2017-09-21

申请号：US15230518

申请日：2016-08-08

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Seung-Jae LEE ,  Tae-Jin KIM ,  Sung-Yeon CHO ,  Myung-Ho LEE

IPC: G09G3/20 ,  G06F1/16

CPC classification number: G09G3/2092 ,  G06F1/1652 ,  G09G3/20 ,  G09G3/3266 ,  G09G3/3611 ,  G09G2310/0267 ,  G09G2310/0286 ,  G09G2310/08 ,  G09G2340/0407 ,  G09G2380/02

Abstract: A gate driver includes a plurality of shift registers and a plurality of connection controllers. The shift registers are connected to a plurality of gate lines of a stretchable display panel, respectively. The shift registers are grouped into a plurality of shift register groups. N adjacent shift registers constitute each of the shift register groups, where N is an integer greater than or equal to 2. The connection controllers change a connection structure of the N adjacent shift registers included in the each of the shift register groups according to whether the stretchable display panel is stretched.