Prism sheet and backlight unit using the same

Details Prism sheet and backlight unit using the same Prism sheet and backlight unit using the same

2005-12-22

2008-08-05

Alavi, Ali (Department: 2875)

Illumination

Edge lighted panel

Light guide

C362S626000, C362S622000, C362S606000, C362S607000, C362S332000

Reexamination Certificate

active

07407317

ABSTRACT:
A prism sheet capable of achieving an enhancement in light efficiency and viewing angle characteristics and a backlight unit using the prism sheet are disclosed. The prism sheet includes: a condensing film which transmits light incident to the condensing film; a plurality of prism crests on the condensing film having apexes; and a plurality of reflection patterns formed on the condensing film such that each of the reflection patterns faces a boundary of adjacent prism crests associated with the reflection pattern to reflect light incident onto the reflection patterns.

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