公开(公告)号：US09910333B2

公开(公告)日：2018-03-06

申请号：US15223655

申请日：2016-07-29

Applicant: LG DISPLAY CO., LTD.

Inventor： Seungrok Shin ,  Sungho Hong ,  Suchang An ,  Leeyoung Kim ,  Hyangmyoung Gwon

IPC: G06F3/041 ,  G02F1/1362 ,  G06F3/044 ,  G09G3/36 ,  G02F1/1333 ,  G02F1/1343 ,  G02F1/1368 ,  G09G3/20

CPC classification number: G02F1/136286 ,  G02F1/13338 ,  G02F1/134309 ,  G02F1/13439 ,  G02F1/1368 ,  G02F2201/121 ,  G02F2201/123 ,  G06F3/0412 ,  G06F3/0416 ,  G06F3/044 ,  G09G3/2092 ,  G09G3/3688 ,  G09G2310/0286 ,  G09G2310/06 ,  G09G2310/08 ,  G09G2320/0209 ,  G09G2320/0223

Abstract: A display device comprising a display panel having touch sensors and gate lines, a touch sensor driver configured to supply a touch driving signal to the touch sensors of the display panel during a touch sensor driving period, a gate driver configured to supply a gate pulse synchronized with a data voltage of an input image to the gate lines of the display panel during a display driving period and supply an alternating current (AC) signal having a same phase as the touch driving signal to the gate lines during the touch sensor driving period, and a modulator configured to supply the AC signal having the same phase as the touch driving signal to the gate driver during the touch sensor driving period.