发明授权
- 专利标题： Broad-band-cholesteric liquid-crystal film, process for producing the same, circularly polarizing plate, linearly polarizing element, illiminator, and liquid-crystal display
- 专利标题（中）： 宽带胆甾醇型液晶膜，其制造方法，圆偏振片，线偏振元件，显影剂和液晶显示器
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申请号： US10542017申请日： 2004-01-08
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公开(公告)号： US07393570B2公开(公告)日： 2008-07-01
- 发明人: Kentarou Takeda , Kazutaka Hara , Naoki Takahashi , Takahiro Fukuoka
- 申请人： Kentarou Takeda , Kazutaka Hara , Naoki Takahashi , Takahiro Fukuoka
- 申请人地址： JP Osaka
- 专利权人： Nitto Denko Corporation
- 当前专利权人： Nitto Denko Corporation
- 当前专利权人地址： JP Osaka
- 代理机构： Westerman, Hattori, Daniels & Adrian, LLP.
- 优先权： JP2003-004550 20030110
- 国际申请： PCT/JP2004/000062 WO 20040108
- 国际公布： WO2004/063779 WO 20040729
- 主分类号： C09K19/52
- IPC分类号： C09K19/52 ; F21V7/22 ; F21V9/14 ; G02F1/13363
摘要：
A broad band cholesteric liquid crystal film of the present invention is a cholesteric liquid crystal film obtained by coating a liquid crystal mixture containing a polymerizable mesogen compound (a), a polymerizable chiral agent (b) and a photoisomerizable material (c) on a substrate to ultraviolet polymerize a coat of the liquid crystal mixture, and has a reflection bandwidth of 200 nm or more. A broad band cholesteric liquid crystal film of the present invention has a broad reflection band, is of a thin type and can be manufactured in less of manufacturing steps.
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