发明授权
US08979330B2 Anisotropic light-diffusing film, anisotropic light-diffusing laminate, anisotropic light-reflecting laminate, and use thereof
有权
各向异性光扩散膜,各向异性光散射层叠体,各向异性光反射层叠体及其应用
- 专利标题: Anisotropic light-diffusing film, anisotropic light-diffusing laminate, anisotropic light-reflecting laminate, and use thereof
- 专利标题(中): 各向异性光扩散膜,各向异性光散射层叠体,各向异性光反射层叠体及其应用
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申请号: US13056270申请日: 2009-08-06
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公开(公告)号: US08979330B2公开(公告)日: 2015-03-17
- 发明人: Katsuaki Kuze , Kenji Kawai
- 申请人: Katsuaki Kuze , Kenji Kawai
- 申请人地址: JP Osaka
- 专利权人: Toyo Boseki Kabushiki Kaisha
- 当前专利权人: Toyo Boseki Kabushiki Kaisha
- 当前专利权人地址: JP Osaka
- 代理机构: Leydig, Voit & Mayer, Ltd.
- 优先权: JP2008-204133 20080807; JP2008-325459 20081222; JP2008-332427 20081226; JP2008-332435 20081226
- 国际申请: PCT/JP2009/063970 WO 20090806
- 国际公布: WO2010/016557 WO 20100211
- 主分类号: F21V11/00
- IPC分类号: F21V11/00 ; B32B15/08 ; B32B27/08 ; C08L23/00 ; G02B5/02 ; G02F1/1335
摘要:
An anisotropic light-diffusing film, an anisotropic light-diffusing laminate, and an anisotropic light-reflecting laminate are provided which are excellent in both light transmittance and diffusivity. Also provided are a lighting equipment and a display device which employ any of the film and laminates and are excellent in light-diffusivity and brightness and in economy, etc. The anisotropic light-diffusing film is a film formed by melt-extruding a mixture of at least two thermoplastic resins incompatible with each other. The film has parallel light ray transmittance of 20-85%, haze of 10-80%, glossiness of 10-70%, and ratio of the vertical-direction diffusivity to the horizontal-direction diffusivity of transmitted light of 1.3-6.0. The anisotropic light-reflecting laminate comprises a light reflector and the anisotropic light-diffusing film laminated over at least one surface of the reflector. In the laminate, diffusivity ratio, reflectivity and diffusivity of reflected light satisfy respective specific ranges.
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