Prism sheet and backlight module using the same

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

2007-12-03

2010-02-02

Nguyen, Thong (Department: 2872)

Optical: systems and elements

Prism

C359S599000, C362S620000, C362S626000

Reexamination Certificate

active

07656597

ABSTRACT:
An exemplary prism sheet includes a transparent main body. The main body includes a first surface, a second surface opposite to the first surface, a plurality of spherical depressions formed in the first surface, and a plurality of triangular pyramidal depressions and hexagonal pyramidal depressions formed in the second surface. Each of the triangular pyramidal depressions is surrounded by three adjacent hexagonal pyramidal depressions. A backlight module using the present prism sheet is also provided.

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patent: 1504776 (2004-06-01), None
patent: 7-114025 (1995-05-01), None

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