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    • 8. 发明申请
    • LIGHT-DIFFUSION SHEET, METHOD FOR MANUFACTURING SAME, AND TRANSMISSION DISPLAY DEVICE PROVIDED WITH THIS LIGHT-DIFFUSION SHEET
    • 光扩散片,其制造方法和用这种光扩散片提供的传输显示装置
    • US20120281289A1
    • 2012-11-08
    • US13519136
    • 2010-10-26
    • Akinori ItohTokiyoshi Umeda
    • Akinori ItohTokiyoshi Umeda
    • G02B5/02B05D5/06
    • G02B5/0231G02B5/0215G02B5/22G02B2207/107G02F1/133504G02F2001/133562
    • A light-diffusion sheet (1) includes a light diffusing section (2) which is provided on a substrate (6) and has a plurality of recessed parts (5) each of which has a v-shaped cross section. A light blocking section (3) is provided in each of the plurality of recessed parts (5), and a reflecting section (4) made of mesoporous silica (8) is provided so as to close a gap between the light blocking section (3) and the each of the plurality of recessed parts (5). The mesoporous silica (8) causes the reflecting section (4) to have a low refractive index. This causes a difference in refractive index between the reflecting section (4) and the light diffusing section (2), so that entrance light having entered the light-diffusion sheet (1) can be totally reflected with great efficiency. Further, since it is unnecessary to use an expensive high refractive index material for the light diffusing section (2), the light-diffusion sheet (1) can be manufactured at a reduced manufacturing cost.
    • 光扩散片(1)包括设置在基板(6)上并具有多个具有V形横截面的多个凹部(5)的光漫射部(2)。 在所述多个凹部(5)的每一个上设置有遮光部(3),并且设置由中孔二氧化硅(8)构成的反射部(4),以封闭所述遮光部(3) )和多个凹部(5)中的每一个。 介孔二氧化硅(8)使得反射部分(4)具有低折射率。 这导致反射部分(4)和光扩散部分(2)之间的折射率差异,使得能够以高效率全面地反射进入光扩散片(1)的入射光。 此外,由于不需要使用用于光扩散部(2)的昂贵的高折射率材料,所以可以以降低的制造成本来制造光扩散片(1)。