Invention Grant
- Patent Title: Liquid crystal display device
- Patent Title (中): 液晶显示装置
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Application No.: US14025103Application Date: 2013-09-12
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Publication No.: US09383862B2Publication Date: 2016-07-05
- Inventor: Masahiro Tokita , Seiichi Tsuyuzaki
- Applicant: Japan Display Inc.
- Applicant Address: JP Tokyo
- Assignee: JAPAN DISPLAY INC.
- Current Assignee: JAPAN DISPLAY INC.
- Current Assignee Address: JP Tokyo
- Agency: Typha IP LLC
- Priority: JP2012-209837 20120924
- Main IPC: G06F3/041
- IPC: G06F3/041 ; G06F3/044

Abstract:
An in-cell type liquid crystal display device includes a first unit that detects whether a touch is present, or not, on the basis of a current flowing in a plurality of detection electrodes when a touch panel scanning voltage is applied to counter electrodes of each of M (M≧2) divided blocks, and a second unit that detects noise on the basis of a current flowing in the plurality of detection electrodes, assuming that an (M+1)th counter electrode is present for the counter electrodes of each of the M divided blocks, and assuming that a touch panel scanning voltage synchronous with the touch panel scanning voltage applied to the counter electrodes of each of the M divided blocks is applied to the (M+1)th counter electrode.
Public/Granted literature
- US20140085235A1 LIQUID CRYSTAL DISPLAY DEVICE Public/Granted day:2014-03-27
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