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发明公开
CN102436019A 一种光学上扩散膜及使用该光学上扩散膜的液晶显示背光源 无效 - 撤回

一种光学上扩散膜及使用该光学上扩散膜的液晶显示背光源
摘要：
一种光学上扩散膜及使用该光学上扩散膜的液晶显示背光源，它包括一个折射率为1.4～1.8的光学透明材料制成的透明基材，所述透明基材上设置有折射率为1.4～1.7的正面扩散涂层，所述涂层中设置有折射率为1.4～1.7的扩散粒子，正面扩散涂层中的扩散粒子相互之间均匀的分布在所述涂层中，所述扩散粒子的排列方式为随机排列，所述正面扩散涂层的厚度为上扩散粒子最大尺寸的1/2～3/4，所述正面扩散涂层扩散粒子的涂布密度为103～106个每平方毫米；本发明具有更高的全光线透过率和更高的亮度，由其制备的液晶显示背光源，具有较高的亮度和全光线透过率。
摘要（英）：

The invention relates to an optical upper diffusion film and a light crystal display backlight source using the same. The optical upper diffusion film comprises a transparent substrate made of an optical transparent material with the refractive index of 1.4-1.8, wherein a front diffusion coating with the refractive index of 1.4-1.7 is arranged on the transparent substrate, and diffusion particles with the refractive index of 1.4-1.7 are uniformly distributed in the front diffusion coating in a random arrangement manner; the thickness of the front diffusion coating is 1/2 to 3/4 the maximum size of the diffusion particles on the front diffusion coating; and the coating density of the diffusion particles on the front diffusion coating is 103-106 particles per square millimeter. The optical upper diffusion film has the advantages of higher total transmittance and higher brightness; and the light crystal display backlight source prepared from the optical upper diffusion film has the advantages of higher brightness and total transmittance.

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