Optical plate having three layers and backlight module with...

Details Optical plate having three layers and backlight module with... Optical plate having three layers and backlight module with...

2007-04-06

2010-10-05

Han, Jason Moon (Department: 2875)

Illumination

Display backlight

Lcd backlight

C362S330000, C362S616000, C362S620000, C362S621000, C349S064000

Reexamination Certificate

active

07806546

ABSTRACT:
An exemplary optical plate includes a first transparent layer (21), a second transparent layer (23) and a light diffusion layer (22). The first transparent layer includes an outer surface (210) and a plurality of first conical frustum-shaped depressions (211) defined at the outer surface. The second transparent layer includes an outer surface (230) and a plurality of second conical frustum-shaped depressions (231) defined at the outer surface. The first transparent layer, the light diffusion layer, and the second transparent layer are integrally formed, with the first transparent layer in immediate contact with the light diffusion layer, and the second transparent layer in immediate contact with the light diffusion layer. The light diffusion layer includes a transparent matrix resin (221) and a plurality of diffusion particles (222) dispersed in the transparent matrix resin.

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