Light guide plate having micro-reflectors

Details Light guide plate having micro-reflectors Light guide plate having micro-reflectors

2008-01-29

2008-01-29

Ward, John Anthony (Department: 2885)

Illumination

Edge lighted panel

Light guide

C362S331000, C362S619000

Reexamination Certificate

active

07322733

ABSTRACT:
A light guide plate having micro-reflectors is to increase luminance of the light guide plate by changing light route. The light guide plate includes an incidence plane, an illuminating plane, and a bottom. Each of the micro-reflectors is disposed at the bottom and intersected with the light guide plate in a direction heading for a recess provided at the bottom of the light guide plate, and comprises a light reflection plane located between the incidence plane and the illuminating plane to define an angle θ. The light reflection plane is an arc quadrilateral or a sector when observed from top of the illuminating plane. The arc quadrilateral has two concentric arc sides parallel with each other.

REFERENCES:
patent: 6629764 (2003-10-01), Uehara
patent: 6755545 (2004-06-01), Lee
patent: 7195389 (2007-03-01), Parker et al.
patent: 575759 (2004-02-01), None

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