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    • 6. 发明申请
    • INFORMATION MEDIUM COMPRISING TWO LAYERS, METHOD OF MANUFACTURING SUCH AN INFORMATION MEDIUM, DEVICE FOR READING SUCH AN INFORMATION MEDIUM
    • 包含两层的信息介质,制造这种信息介质的方法,用于读取这些信息介质的设备
    • WO2005034099A3
    • 2005-06-02
    • PCT/IB2004003033
    • 2004-09-17
    • KONINKL PHILIPS ELECTRONICS NVLUB JOHANBROER DIRK JANKURT RALPHHENDRIKS ROBERT FRANS MARIA
    • LUB JOHANBROER DIRK JANKURT RALPHHENDRIKS ROBERT FRANS MARIA
    • G11B7/24038G11B7/245G11B7/25G11B7/26G11B7/24
    • G11B7/24038G11B7/245G11B7/25G11B7/266
    • The present invention relates to an information medium comprising a first information layer (L1) and a second information layer (L2), said first and second information layers (L1, L2) comprising marks intended to store binary data, each mark being intended to be read by a light spot polarized according to a first direction (d1) or to a second direction (d2), wherein: the first information layer (L1) comprises first marks (101) sensitive to the first polarization direction, and second marks (102) not sensitive to said first polarization direction, said first and second marks being both not sensitive or equally sensitive to the second polarization direction, the second information layer (L2) comprising third marks (103) sensitive to the second polarization direction, and fourth marks (104) not sensitive to said second polarization direction, said third and fourth marks being both not sensitive or equally sensitive to the first polarization direction. A first photo-alignment layer is spin-coated on a substrate, exposed with uv-light having a particular polarization, spin-coating a mixture containing liquid crystal monomers and dichroic dyes and locally curing that mixture by uv-light.
    • 本发明涉及包括第一信息层(L1)和第二信息层(L2)的信息介质,所述第一和第二信息层(L1,L2)包括用于存储二进制数据的标记,每个标记旨在是 通过根据第一方向(d1)或第二方向(d2)偏振的光点读取,其中:第一信息层(L1)包括对第一偏振方向敏感的第一标记(101)和第二标记(102 )对所述第一偏振方向不敏感,所述第一和第二标记对第二偏振方向都不敏感或不敏感,第二信息层(L2)包括对第二偏振方向敏感的第三标记(103)和第四标记 (104)对所述第二偏振方向不敏感,所述第三和第四标记对第一偏振方向都不敏感或同等敏感。 将第一光取向层旋涂在基板上,用具有特定极化的紫外光进行曝光,旋涂包含液晶单体和二色性染料的混合物,并通过紫外线局部固化该混合物。