Prism sheet, backlight unit using the same, and method for...

Details Prism sheet, backlight unit using the same, and method for... Prism sheet, backlight unit using the same, and method for...

2005-12-22

2010-02-23

Payne, Sharon E (Department: 2875)

Illumination

Edge lighted panel

Light modifier for edge lit light source

C362S620000, C362S615000

Reexamination Certificate

active

07665877

ABSTRACT:
A prism sheet capable of enhancing light efficiency and viewing angle characteristics, a backlight unit using the prism sheet, and a method for fabricating the prism sheet are disclosed. The prism sheet includes a transparent substrate, a plurality of grooves formed in an upper surface of the transparent substrate to extend in a parallel direction with each other and to be uniformly spaced apart from one another by a predetermined distance, a plurality of reflection patterns respectively formed in the grooves, and a plurality of lenticular lenses formed on the upper surface of the transparent substrate formed with the reflection patterns.

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