公开(公告)号：US20220066594A1

公开(公告)日：2022-03-03

申请号：US17374896

申请日：2021-07-13

Applicant: LG DISPLAY CO., LTD.

Inventor： HoanSu SHIM ,  JuHan KIM ,  Wonjoung KIM ,  Yeonock HA

IPC: G06F3/044 ,  G06F3/041

Abstract: A touch display device and a touch driving method thereof enable to effectively identify a ghost touch while reducing a number of touch lines and touch sensing units by differently disposing an arrangement of the touch electrodes to which the touch lines are connected for each touch block.

公开(公告)号：US20170315643A1

公开(公告)日：2017-11-02

申请号：US15222677

申请日：2016-07-28

Applicant: LG DISPLAY CO., LTD.

Inventor： HoanSu SHIM ,  DeukSu LEE ,  Chulwoo LEE ,  Tae-Min JUNG

IPC: G06F3/041

CPC classification number: G06F3/0412 ,  G06F3/044 ,  G06F2203/0339 ,  G06F2203/04103 ,  G06F2203/04112

Abstract: The present exemplary embodiments provide a touch display device which connects a touch driving circuit and a plurality of touch sensors using a plurality of dummy pixels disposed on a display panel to recognize touch event of a user. When the touch wiring line is implemented, the same material as the pixel electrode or the source line included in the plurality of dummy pixels is used so that a separate process for implementing the touch wiring line is not necessary. Further, in a pixel structure in which one data line is disposed for every two pixels, the source line is disposed in a region where the data line is not disposed to be used as a touch wiring line. Therefore, the touch recognizable area may expand as compared with a case using a pixel metal.