Front-lit liquid crystal display having brightness enhancing fil

Details Front-lit liquid crystal display having brightness enhancing fil Front-lit liquid crystal display having brightness enhancing fil

1996-01-17

1997-03-04

Sikes, William L.

Optical: systems and elements

Holographic system or element

Using a hologram as an optical element

359 49, 359625, 385 36, G02F 11335, G02B 2710, G02B 634

Patent

active

056085508

ABSTRACT:
A front-lit display, having a ridged transparent film thereon. The ridges on the film bend glancing light rays down into the display. The light rays are reflected by a reflector below the display, pass back through the display, and exit the film in a direction substantially normal to the display. Thus, the ridged film enhances the brightness of the display for a given light source.

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