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

Anisotropic light-diffusing film, anisotropic light-diffusing laminate, anisotropic light-reflecting laminate, and use thereof
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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