Light guide device and backlight module using the same

Details Light guide device and backlight module using the same Light guide device and backlight module using the same

2007-08-07

2007-08-07

O'Shea, Sandra (Department: 2875)

Illumination

Edge lighted panel

Light guide

Reexamination Certificate

active

11198741

ABSTRACT:
A light guide device (1) and a backlight module (3) using the same. The light guide device includes a light guide plate (11) and a reflective mirror (10). The light guide plate has at least one light receiving surface (111), and two opposite light emitting surfaces (112,113). The reflective mirror is set between the light emitting surfaces, and is integrally manufactured with the light guide plate. The light guide device and backlight module using the same may be applied to optoelectronic devices, such as liquid crystal displays, overhead projectors, etc. The light guide device has a simple structure, and transforms light from at least one light source (31) into two surface light sources emitting light with uniform brightness.

REFERENCES:
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patent: 6132048 (2000-10-01), Gao et al.
patent: 6295104 (2001-09-01), Egawa et al.
patent: 6791639 (2004-09-01), Colgan et al.
patent: 2001/0002164 (2001-05-01), Ludwing et al.
patent: 2005/0088838 (2005-04-01), Tsai
patent: 547670 (2003-08-01), None
patent: 552439 (2003-09-01), None
patent: 556843 (2003-10-01), None

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