Backlight module

Details Backlight module Backlight module

2008-07-29

2008-07-29

Lee, Y My Quach (Department: 2885)

Illumination

Edge lighted panel

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

C362S619000, C362S625000

Reexamination Certificate

active

07404659

ABSTRACT:
A backlight module includes at least a light guide board, a reflector film, an optic film, and a light scarce. The light guide board has a light emitting surface on which a plurality of light: converging elements is formed. The optic film has a surface on which a plurality of rib-like micro light guides is formed. Each micro light guide includes a plurality of ridges, which are of different heights and show variation of height. Either a high ridge or a low ridge of the micro light guide is made a continuous left-and-right wavy configuration and/or a continuous up-and-down height-variation configuration. Thus, light transmitting through, the optic film and converged by the micro light guides leaves the optic film in a form that is not very regular so as to facilitate subsequent use of the light in for example a liquid crystal display panel.

REFERENCES:
patent: 6354709 (2002-03-01), Campbell et al.
patent: 6478438 (2002-11-01), Ishikawa et al.
patent: 6712481 (2004-03-01), Parker et al.
patent: 7128456 (2006-10-01), Yamashita et al.

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