Backlight and display

Details Backlight and display Backlight and display

2011-04-26

2011-04-26

Husar, Stephen F (Department: 2875)

Illumination

Edge lighted panel

Light guide

C362S617000, C362S330000, C362S339000, C362S615000, C362S613000

Reexamination Certificate

active

07931396

ABSTRACT:
A backlight is provided for illuminating an at least partially transmissive display. The backlight includes a light source. A light guide receives the light from an edge surface and guides the light by total internal reflection. Groove structures which are located on at least one of the major surfaces of the light guide permit redistribution of light around obstacles that may be present within the light guide structure, thereby maintaining brightness uniformity of the backlight or illumination panel.

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