公开(公告)号：US20180059838A1

公开(公告)日：2018-03-01

申请号：US15664779

申请日：2017-07-31

Applicant: LG Display Co., Ltd.

Inventor： Jinsoo CHUNG ,  TaeHoon KIM ,  JeongKil SEO ,  DongHoon LEE ,  JunWook YOO

IPC: G06F3/041 ,  G06F3/044 ,  G09G3/36 ,  G02F1/1333 ,  G02F1/1362

CPC classification number: G06F3/0412 ,  G02F1/13338 ,  G02F1/136286 ,  G06F3/0416 ,  G06F3/044 ,  G09G3/3275 ,  G09G3/3688 ,  G09G2310/0297 ,  G09G2310/08 ,  G09G2320/0257 ,  G09G2330/022 ,  G09G2330/023 ,  G09G2354/00

Abstract: A touch display device. A touch display panel includes a source multiplexer switching the transfer of source signals to data lines. In a low power wake-up gesture (LPWG) mode in which a touch input is only sensed in a state in which a display function is off to reduce power consumption, a source multiplexer control signal is provided to set the source multiplexer in an on state, in synchronization with a touch sensing section in which a touch driving signal is provided. This can discharge electric charges generated within the display panel, thereby preventing display defects due to the electric charges.

公开(公告)号：US20240231540A9

公开(公告)日：2024-07-11

申请号：US18381509

申请日：2023-10-18

Applicant: LG Display Co., Ltd.

Inventor： DongHoon LEE ,  TaeHoon KIM ,  Jinwook CHOI ,  Dongjoong CHA

IPC: G06F3/041 ,  G06F3/0354 ,  G09G3/3233

CPC classification number: G06F3/04184 ,  G06F3/03545 ,  G06F3/0412 ,  G06F3/041662 ,  G09G3/3233 ,  G09G2300/0842 ,  G09G2320/02 ,  G09G2354/00

Abstract: A display apparatus can include a panel which includes a plurality of sub pixels and a plurality of touch electrodes, a first driving circuit which supplies a driving signal to the panel in a driving period and holds the driving signal in the stand-by period, and a second driving circuit which supplies a mutual sensing signal to the panel and supplies a self-sensing signal to the panel in the stand-by period.

公开(公告)号：US20240134482A1

公开(公告)日：2024-04-25

申请号：US18381509

申请日：2023-10-17

Applicant: LG Display Co., Ltd.

Inventor： DongHoon LEE ,  TaeHoon KIM ,  Jinwook CHOI ,  Dongjoong CHA

IPC: G06F3/041 ,  G06F3/0354 ,  G09G3/3233

CPC classification number: G06F3/04184 ,  G06F3/03545 ,  G06F3/0412 ,  G06F3/041662 ,  G09G3/3233 ,  G09G2300/0842 ,  G09G2320/02 ,  G09G2354/00

Abstract: A display apparatus can include a panel which includes a plurality of sub pixels and a plurality of touch electrodes, a first driving circuit which supplies a driving signal to the panel in a driving period and holds the driving signal in the stand-by period, and a second driving circuit which supplies a mutual sensing signal to the panel and supplies a self-sensing signal to the panel in the stand-by period.

公开(公告)号：US20180088722A1

公开(公告)日：2018-03-29

申请号：US15709818

申请日：2017-09-20

Applicant: LG DISPLAY CO., LTD.

Inventor： TaeHoon KIM ,  JeongKil SEO ,  Jinsoo CHUNG ,  DongHoon LEE ,  JunWook YOO

IPC: G06F3/041 ,  G02F1/1333 ,  G02F1/1343

CPC classification number: G06F3/0414 ,  G02F1/13338 ,  G02F1/1343 ,  G06F3/0416 ,  G06F3/044

Abstract: There is provided a touch display device including a display panel including a first electrode for touch sensing, a first support that covers a back surface of an edge area of the display panel, a second support on a back side of the first support and that covers an entirety of the back surface of the display panel, and a touch driver configured to: apply a first electrode driving signal to the first electrode, select one of the first support and the second support as a second electrode, and apply a second electrode driving signal to sense a user's touch pressure applied to the display panel.