Invention Grant
- Patent Title: Liquid crystal display device and electronic device
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Application No.: US15350690Application Date: 2016-11-14
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Publication No.: US10338419B2Publication Date: 2019-07-02
- Inventor: Shuji Fukai , Ryo Hatsumi , Daisuke Kubota
- Applicant: Semiconductor Energy Laboratory Co., Ltd.
- Applicant Address: JP
- Assignee: Semiconductor Energy Laboratory Co., Ltd.
- Current Assignee: Semiconductor Energy Laboratory Co., Ltd.
- Current Assignee Address: JP
- Agency: Husch Blackwell LLP
- Priority: JP2013-154170 20130725
- Main IPC: G02F1/1343
- IPC: G02F1/1343 ; G02F1/133 ; G02F1/1333 ; G09G3/36 ; G02F1/1335 ; G02F1/1337 ; G02F1/1339 ; G02F1/1362 ; G02F1/1368

Abstract:
A flicker of an FFS liquid crystal display device that is driven at a low refresh rate is reduced. In an FFS liquid crystal display, a pixel electrode and a first common electrode included in a liquid crystal element are formed on an element substrate side, and a second common electrode is formed on another substrate (counter substrate) side. By making the first and second common electrodes have the same potential, generation of a residual DC voltage can be suppressed in a pixel. Thus, even when a refresh rate is lowered, change in transmittance of a pixel can be suppressed in a data retention period, so that a flicker can be reduced.
Public/Granted literature
- US20170059910A1 Liquid Crystal Display Device and Electronic Device Public/Granted day:2017-03-02
Information query
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