Invention Grant
- Patent Title: Liquid crystal display device with touch panel
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Application No.: US14744804Application Date: 2015-06-19
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Publication No.: US09778501B2Publication Date: 2017-10-03
- Inventor: Yoshinori Aoki , Keita Sasanuma , Kazune Matsumura
- 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: JP2012-012262 20120124
- Main IPC: G02F1/1335
- IPC: G02F1/1335 ; G02F1/1333 ; G06F3/041 ; G06F3/044 ; G02F1/1362 ; G09G3/36 ; G02F1/1343

Abstract:
A second substrate has detection electrodes of a touch panel, each of pixels has a pixel electrode and a counter electrode, the counter electrode is divided into a plurality of blocks, the counter electrodes of the respective divided blocks are commonly provided for the respective pixels of the plurality of display lines in series, and the counter electrodes also serve as scanning electrodes of the touch panel, and a counter electrode selector circuit that selects the counter electrodes. The counter electrode selector circuit includes an address decoder circuit that selects the counter electrodes of the respective blocks for a given period, and a selector circuit that applies a touch panel scanning voltage to the counter electrode of the block selected by the address decoder circuit, and applies a counter voltage to the counter electrodes of the blocks not selected by the address decoder circuit.
Public/Granted literature
- US20150362777A1 LIQUID CRYSTAL DISPLAY DEVICE WITH TOUCH PANEL Public/Granted day:2015-12-17
Information query
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