Title:
DISPLAY DEVICE WITH TOUCH SENSOR AND METHOD FOR DRIVING SAME
Document Type and Number:
WIPO Patent Application WO/2018/088315
Kind Code:
A1
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).
Inventors:
NISHIO MASAAKI
KITAGAWA DAIJI
KITAGAWA DAIJI
Application Number:
PCT/JP2017/039672
Publication Date:
May 17, 2018
Filing Date:
November 02, 2017
Export Citation:
Assignee:
SHARP KK (JP)
International Classes:
G09G3/36; G02F1/133; G06F3/0354; G06F3/041; G09G3/20
Domestic Patent References:
| WO2009125614A1 | 2009-10-15 | |||
| WO2013047456A1 | 2013-04-04 |
Foreign References:
| JP2008015755A | 2008-01-24 | |||
| JP2005043914A | 2005-02-17 | |||
| JP2013190719A | 2013-09-26 | |||
| JP2009015367A | 2009-01-22 | |||
| JP2014167619A | 2014-09-11 | |||
| US20160328037A1 | 2016-11-10 | |||
| US20130342481A1 | 2013-12-26 |
Attorney, Agent or Firm:
SHIMADA, Akihiro et al. (JP)
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