Backlight asymmetric light input wedge

Details Backlight asymmetric light input wedge Backlight asymmetric light input wedge

2011-01-14

2011-11-15

Le, Uyen Chau N (Department: 2874)

Optical waveguides

Noncyclindrical or nonplanar shaped waveguide

C349S065000, C362S610000, C362S621000

Reexamination Certificate

active

08059933

ABSTRACT:
A backlight is disclosed and includes a visible light transmissive body primarily propagating light by TIR with a light input surface and a light output surface and a light guide portion and a light input portion. The light guide portion has a light reflection surface and a light emission surface. The light input portion has opposing side surfaces that are not parallel. One of the opposing surfaces is co-planar with either the light emission surface or the light reflection surface. A light source is disposed adjacent to the light input surface. The light source emits light into the light input portion. A reflective layer is disposed adjacent to or on the opposing side surfaces.

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