Invention Grant
- Patent Title: Display device
-
Application No.: US16381087Application Date: 2019-04-11
-
Publication No.: US10444906B2Publication Date: 2019-10-15
- 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: Michael Best & Friedrich LLP
- Priority: JP2012-209837 20120924
- Main IPC: G06F3/041
- IPC: G06F3/041 ; G02F1/1368 ; G02F1/1333 ; G06F3/044 ; G02F1/1343

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
- US20190235700A1 DISPLAY DEVICE Public/Granted day:2019-08-01
Information query