公开(公告)号：US20200033990A1

公开(公告)日：2020-01-30

申请号：US16591155

申请日：2019-10-02

Applicant: LG Display Co., Ltd.

Inventor： SangHyuck BAE ,  BuYeol LEE ,  SeungRok SHIN ,  CheolSe KIM ,  DeukSu LEE ,  Hyunwoo JANG ,  Jaeseung KIM ,  YoungGyu KIM ,  Hyunsuk CHO

IPC: G06F3/041 ,  G06F3/0354 ,  G06F3/038 ,  G06F3/044

Abstract: Embodiments described herein is able to provide a touch display device, an active pen, a touch system, a touch circuit, and a pen recognition method capable of efficiently providing a display function, a touch-sensing function, and a pen-touch-sensing function.

公开(公告)号：US20180181241A1

公开(公告)日：2018-06-28

申请号：US15824928

申请日：2017-11-28

Applicant: LG Display Co., Ltd.

Inventor： Doyoung JUNG ,  Hyunwoo JANG ,  Hyunguk JANG ,  Sanghyuck BAE ,  Suyun JU

IPC: G06F3/041 ,  G06F3/0354 ,  G06F3/0488

CPC classification number: G06F3/0412 ,  G06F3/03545 ,  G06F3/0416 ,  G06F3/044 ,  G06F3/0488

Abstract: A touch sensing system and a method of driving the same are disclosed. The touch sensing system includes a touch screen integrated display panel provided with a plurality of touch sensors and a plurality of pixels, a timing controller time-dividing one display frame into a plurality of touch periods and a plurality of display periods, a microcontroller unit dividing a sensing mode of the plurality of touch sensors into a full scan mode and a local scan mode, and a touch integrated circuit (IC) sensing a finger touch input of the touch sensors through the touch periods in the full scan mode and time-division sensing a finger touch input and a pen touch input of the touch sensors through the touch periods in the local scan mode.

公开(公告)号：US20210181893A1

公开(公告)日：2021-06-17

申请号：US17187146

申请日：2021-02-26

Applicant: LG Display Co., Ltd.

Inventor： SangHyuck BAE ,  BuYeol LEE ,  SeungRok SHIN ,  CheolSe KIM ,  DeukSu LEE ,  Hyunwoo JANG ,  Jaeseung KIM ,  YoungGyu KIM ,  Hyunsuk CHO

IPC: G06F3/044 ,  G06F3/041 ,  G06F3/0354 ,  G06F3/038

Abstract: Embodiments described herein is able to provide a touch display device, an active pen, a touch system, a touch circuit, and a pen recognition method capable of efficiently providing a display function, a touch-sensing function, and a pen-touch-sensing function.

公开(公告)号：US20180113559A1

公开(公告)日：2018-04-26

申请号：US15792409

申请日：2017-10-24

Applicant: LG Display Co., Ltd.

Inventor： SangHyuck BAE ,  BuYeol LEE ,  SeungRok SHIN ,  CheolSe KIM ,  DeukSu LEE ,  Hyunwoo JANG ,  Jaeseung KIM ,  YoungGyu KIM ,  Hyunsuk CHO

IPC: G06F3/041 ,  G06F3/0354 ,  G06F3/038 ,  G06F3/044

CPC classification number: G06F3/0416 ,  G06F3/03545 ,  G06F3/0383 ,  G06F3/0412 ,  G06F3/044 ,  G06F2203/04104 ,  G06F2203/04111 ,  G06F2203/04112

Abstract: Embodiments described herein is able to provide a touch display device, an active pen, a touch system, a touch circuit, and a pen recognition method capable of efficiently providing a display function, a touch-sensing function, and a pen-touch-sensing function.

公开(公告)号：US20170090617A1

公开(公告)日：2017-03-30

申请号：US14983742

申请日：2015-12-30

Applicant: LG Display Co., Ltd.

Inventor： Hyunwoo JANG ,  Juhong KIM

IPC: G06F3/044

CPC classification number: G06F3/0416 ,  G06F2203/04104 ,  G06F2203/04808

Abstract: A disclosed method for assigning a touch identification in a multi-touch sensitive display device is includes applying a touch driving signal to touch sensors of a touch screen and generating raw touch data, detecting touch points based on the raw touch data and respectively assigning temporary identifications (IDs) to the touch points, grouping the touch points based on a difference in distances between the touch points to form touch groups, and forming adaptive touch groups respectively based on the touch groups. The method also includes setting a comparison block including one or more of the adaptive touch groups contacting or overlapping each other, and matching the temporary ID assigned to one of the touch points within the comparison block in the current frame to one of a plurality of touch IDs within the comparison block in a previous frame.