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发明公开
CN101639585A 复合光学膜 无效 - 驳回

复合光学膜
摘要：
一种复合光学膜，包括第一膜层、第二膜层以及多个扩散结构。第一膜层包括入光面，并具有第一折射率。第二膜层具有第二折射率，设置于第一膜层上相对于入光面的另一面，其中第二折射率小于第一折射率。多个扩散结构设置于第一膜层及第二膜层的界面上。其中，扩散结构具有第三折射率，第三折射率介于第一折射率及第二折射率之间，且可选择性与第一折射率及第二折射率两者之一相等。
摘要（英）：

The invention relates to a composite optical film which comprises a first film layer, a second film layer and a plurality of diffusion structures, wherein the first film layer comprises a light inletsurface and has a first refractive index; the second film layer which has a second refractive index is arranged on the surface of the first film layer, which is opposite to the light inlet surface, wherein the second refractive index is smaller than the first refractive index; the diffusion structures are arranged on the interface of the first film layer and the second film layer, wherein each diffusion structure has a third refractive index which is between the first refractive index and the second refractive index and can be selectively equal to one of the first refractive index and the second refractive index.

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