Brightness-enhancing film

Details Brightness-enhancing film Brightness-enhancing film

2009-01-14

2010-10-05

Husar, Stephen F (Department: 2875)

Illumination

Display backlight

Lcd backlight

C362S097200, C362S331000, C349S064000, C359S619000, C359S641000

Reexamination Certificate

active

07806547

ABSTRACT:
The present embodiments provide systems, backlights, films, apparatuses and methods of generating back lighting. Some embodiments provide backlights that include a cavity with at least one interior light source and diffusely reflecting wall of high reflectivity, a top surface with multiple intermittently spaced holes allowing exit of light generated by the light sources, and external collimators extending from each of the holes such that the external collimators spatially expand and angularly narrow the light exiting the holes.

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