Invention Grant
- Patent Title: Light control device, light control window, and optical laminated body for light control device
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Application No.: US15109504Application Date: 2015-01-07
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Publication No.: US10228572B2Publication Date: 2019-03-12
- Inventor: Yoshiaki Asanoi , Shoichi Matsuda , Hiroyuki Takemoto , Tadayuki Kameyama
- Applicant: NITTO DENKO CORPORATION
- Applicant Address: JP Ibaraki-shi
- Assignee: NITTO DENKO CORPORATION
- Current Assignee: NITTO DENKO CORPORATION
- Current Assignee Address: JP Ibaraki-shi
- Agency: Westerman, Hattori, Daniels & Adrian, LLP
- Priority: JP2014-003743 20140110
- International Application: PCT/JP2015/050293 WO 20150107
- International Announcement: WO2015/105130 WO 20150716
- Main IPC: G02B27/28
- IPC: G02B27/28 ; E06B9/24 ; G02B5/30
Abstract:
A light control device of the present invention includes a first patterning polarizing plate 21 containing a plurality of polarization regions having different absorption axis directions, a second patterning polarizing plate 22 containing the same polarization regions as those of the first patterning polarizing plate 21, and a retardation plate 3, wherein at least any one of the first and the second patterning polarizing plates 21, 22 is disposed slidably in a plane direction. Such a light control device hardly causes color irregularities and hardly causes a pattern.
Public/Granted literature
- US20160334633A1 LIGHT CONTROL DEVICE, LIGHT CONTROL WINDOW, AND OPTICAL LAMINATED BODY FOR LIGHT CONTROL DEVICE Public/Granted day:2016-11-17
Information query
