Optical film and backlight module using the same

Details Optical film and backlight module using the same Optical film and backlight module using the same

2011-01-11

2011-01-11

Truong, Bao Q (Department: 2875)

Illumination

Edge lighted panel

Light modifier with emission face combined with light guide...

C362S330000, C362S333000, C362S097100, C362S607000

Reexamination Certificate

active

07866868

ABSTRACT:
An optical film has a light incident side and a light emitting side above the light incident side. V shape protrusions disposed side by side are disposed at the light incident side. Collimating units disposed side by side are disposed at the light emitting side. Each of the V shape protrusions and each of the collimating units extend along a predetermined direction. The collimating units are respectively corresponded to the V shape protrusions. Two inclined surfaces of each of the V shape protrusions are respectively a light incident surface and a reflection surface. In each corresponding pair of the V shape protrusion and the collimating unit, a central axis of the collimating unit parallel to the predetermined direction is right above the reflection surface of the V shape protrusion. A backlight module using the optical film is provided to provide a plane light source having high luminance.

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patent: 2009/0122576 (2009-05-01), Sato et al.

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