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1. (WO2018088315) DISPLAY DEVICE WITH TOUCH SENSOR AND METHOD FOR DRIVING SAME

Pub. No.:    WO/2018/088315    International Application No.:    PCT/JP2017/039672
Publication Date: Fri May 18 01:59:59 CEST 2018 International Filing Date: Fri Nov 03 00:59:59 CET 2017
IPC: G09G 3/36
G02F 1/133
G06F 3/0354
G06F 3/041
G09G 3/20
Applicants: SHARP KABUSHIKI KAISHA
シャープ株式会社
Inventors: NISHIO, Masaaki
西尾 真明
KITAGAWA, Daiji
北川 大二
Title: DISPLAY DEVICE WITH TOUCH SENSOR AND METHOD FOR DRIVING SAME
Abstract:
The purpose of the present invention is to provide a display device with a touch sensor capable of precisely detecting a touch position while further reducing current consumption compared to existing display devices. A display controller controls the timing for changing the waveforms of gate clock signals (GCK1, GCK2) so that the display is driven in relatively short time after the start of odd-numbered horizontal scanning periods (Ho), and so that the display is driven in relatively long time after the start of even-numbered horizontal scanning periods (Ho). A touch panel controller outputs a pulse for a touch driving signal (STD) to initiate a position detection operation in a touch panel during a stable period after the end of the display driving operation in the odd-numbered horizontal scanning periods (Ho).