Photo diffusion membrane and relative backlight modular

The purpose of the invention is to provide a kind of light diffusion film and the related backlight module. In addition to maintaining high light transmission ratio, the light diffusion film can increase the heat durability, heat-durable size-stability and endurable characteristic. Even receiving th...

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Bibliographische Detailangaben
1. Verfasser: KAMIKITA MASAKAZU,MINEO HIROSHI
Format: Patent
Sprache:eng
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Beschreibung
Zusammenfassung:The purpose of the invention is to provide a kind of light diffusion film and the related backlight module. In addition to maintaining high light transmission ratio, the light diffusion film can increase the heat durability, heat-durable size-stability and endurable characteristic. Even receiving the heat of lamp tube or UV irradiation, the phenomenon of bending or becoming yellow is not easily generated. The backlight module uses the light diffusion film so as to decrease the phenomena of non-uniform and insufficient brightness. The invented light diffusion film contains the followings: the base material layer, which is transparent; and light diffusion layer, which is formed by stacking on the surface of the base material layer. The light diffusion layer is formed by containing light diffusion agent in the bonding agent. The bonding agent is composed of the polymeric material formed by polyhydric alcohol and micro inorganic filler (polymeric object containing photo-stable grouped polyhydric alcohol and micro inorganic filler). The average particle diameter of micro inorganic filler is larger than 5nm and smaller than 50 nm.