公开(公告)号：US20190004649A1

公开(公告)日：2019-01-03

申请号：US15791665

申请日：2017-10-24

Applicant: LG DISPLAY CO., LTD.

Inventor： Suyun JU ,  HyungUk JANG ,  SangHyuck BAE ,  DoYoung JUNG ,  SeungSeok OH ,  Sungsu HAN

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

Abstract: A touch display device may include: a panel including a plurality of touch electrodes, and a touch circuit configured to: transfer a panel driving signal to the panel, and receive a pen information signal, output from a pen in response to the panel driving signal, through the panel, each of the panel driving signal and the pen information signal including a plurality of pulses, the pen information signal including one or more state sections among: an in-phase state section including pulses in phase with the pulses of the panel driving signal, an antiphase state section including pulses having a different phase from the pulses of the panel driving signal, and a passive state section distinguished from the in-phase state section and the antiphase state section.

公开(公告)号：US20200210021A1

公开(公告)日：2020-07-02

申请号：US16726530

申请日：2019-12-24

Applicant: LG Display Co., Ltd.

Inventor： Suyun JU ,  HyungUk JANG ,  Sungsu HAN ,  DoYoung JUNG ,  SangHyuck BAE ,  Jongsung KIM

IPC: G06F3/044

Abstract: A touch display device comprises a touch panel including a plurality of touch electrodes; and a touch driving circuit configured to sense one or more of the plurality of touch electrodes, wherein the touch driving circuit has an operation period including a plurality of touch intervals that includes a first sensing interval and a second sensing interval, and the first sensing interval includes at least a first time division sensing interval and the second sensing interval includes at least a second time division sensing interval, and wherein the touch driving circuit is configured to detect a pen signal output from a first pen through one or more touch electrodes of the plurality of touch electrodes during the first time division sensing interval, and detect a pen signal output from a second pen through one or more touch electrodes of the plurality of touch electrodes during the second time division sensing interval.

公开(公告)号：US20220171514A1

公开(公告)日：2022-06-02

申请号：US17492234

申请日：2021-10-01

Applicant: LG Display Co., Ltd.

Inventor： Jongsung KIM ,  HyungUk JANG ,  YoungGyu KIM ,  NamYong GONG

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

Abstract: Discussed is a touch display device and a touch sensing method. More particularly, according to the number of pens that have been paired, the frame can be reconfigured by changing the type of all or part of the multiple touch time periods in the frame, and it is possible to provide high-speed pen search and pen pairing by designing a highly scalable pen protocol to flexibly change the pen mode.

公开(公告)号：US20180150177A1

公开(公告)日：2018-05-31

申请号：US15798161

申请日：2017-10-30

Applicant: LG Display Co., Ltd

Inventor： JuneYoun HWANG ,  BeomJin KIM ,  HyungUk JANG ,  SangHyuck BAE ,  Sungsu HAN ,  Suyun JU ,  DoYoung JUNG

IPC: G06F3/041 ,  G06F3/044 ,  G09G5/00

CPC classification number: G06F3/0416 ,  G06F3/044 ,  G06F2203/04107 ,  G09G5/003

Abstract: There are provided a touch display device, a touch driving circuit, and a touch sensing method. More specifically, a touch display device includes a touch screen panel including a plurality of touch electrodes and a touch driving circuit configured to output a touch driving signal to at least a portion of the plurality of touch electrodes for sensing a touch. Upon detection of an event in which at least one first area of the touch screen panel is set as a touch sensing area and at least one second area of the touch screen panel is set as a non-touch sensing area, the touch driving circuit is configured to output the touch driving signal to one or more of the plurality of touch electrodes that correspond to the at least one first area of the touch screen panel.

公开(公告)号：US20210124473A1

公开(公告)日：2021-04-29

申请号：US17078544

申请日：2020-10-23

Applicant: LG Display Co., Ltd.

Inventor： YoungGyu KIM ,  Hyunsuk CHO ,  NamYong GONG ,  HyungUk JANG ,  DoYoung JUNG ,  Jongsung KIM

IPC: G06F3/041

Abstract: Embodiments of the present disclosure relate to a touch circuit, a touch display device, and a touch driving method, and more specifically, to a touch circuit, a touch display device, and a touch driving method for simply configuring a system for transmitting signals between a touch display device and a stylus by uniformly arranging intervals between touch driving periods in a touch frame.

公开(公告)号：US20210124449A1

公开(公告)日：2021-04-29

申请号：US17022768

申请日：2020-09-16

Applicant: LG Display Co., Ltd.

Inventor： HyungUk JANG ,  NamYong GONG ,  SangHyuck BAE ,  YoungGyu KIM ,  DoYoung JUNG ,  Hyunsuk CHO ,  Jongsung KIM

IPC: G06F3/041 ,  G06F3/044

Abstract: Provided are a touch display device and a touch circuit that can effectively simultaneously sense a plurality of pens in a predetermined touch frame time (a driving time) by simultaneously performing sensing of pen information and sensing of a pen position using pen data.

公开(公告)号：US20190102021A1

公开(公告)日：2019-04-04

申请号：US16140903

申请日：2018-09-25

Applicant: LG DISPLAY CO., LTD.

Inventor： HyungUk JANG ,  SeungSeok OH ,  SangHyuck BAE ,  Sungsu HAN ,  Suyun JU ,  DoYoung JUNG

IPC: G06F3/041 ,  G06F3/0354

Abstract: Disclosed are a touch display device, a touch circuit, a pen, a touch system, and a multi-pen sensing method for receiving downlink signals output from two or more pens through one or more touch electrodes on a panel and distinguishably sensing the two or more pens based on unique information of the received downlink signals.