Backlight module

Details Backlight module Backlight module

2005-08-02

2005-08-02

O'Shea, Sandra (Department: 2875)

Illumination

Elongated source light unit or support

With or including transparent or translucent member

C362S299000, C362S311040

Reexamination Certificate

active

06923554

ABSTRACT:
A light source module for a backlight module has a shield surrounding a linear light source above a casing below a diffuser, The shield has a diffusing portion and two light guide portions substantially perpendicularly connected between the diffusing portion and the casing. The diffusing portion is disposed parallel to the linear light source and has a grooved diffusion surface facing the linear light source adapted to reflect light from the linear light source toward the light guide portions. Each light guide portion has a grooved light guide surface disposed on an outer side away from the linear light source and adapted to refract and diffuse light rays toward a reflector on the casing.

REFERENCES:
patent: 3775605 (1973-11-01), Rijnders
patent: 4615579 (1986-10-01), Whitehead
patent: 4750798 (1988-06-01), Whitehead
patent: 4787708 (1988-11-01), Whitehead
patent: 4805984 (1989-02-01), Cobb, Jr.
patent: 5006966 (1991-04-01), Mikalonis
patent: 5034864 (1991-07-01), Oe
patent: 5509223 (1996-04-01), Jung
patent: 6095656 (2000-08-01), Shimura et al.
patent: 6666569 (2003-12-01), Obata

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