Back light unit mold frame construction

Details Back light unit mold frame construction Back light unit mold frame construction

2006-08-02

2010-06-01

Song, Sarah (Department: 2874)

Optical waveguides

Illuminating or display apparatus

Reexamination Certificate

active

07729589

ABSTRACT:
A mold frame contains a lamp shade and a light source, a light guide being erected at the open end and secured in place on one side of the lamp shade; streams of light from the light source entering into from one side of the light guide plate to project in the direction as expected; and a mask device being disposed on the mold frame at where close to the joint edge of the light guide plate so to weaken the reflection rate of the light that leaves the light guide plate, to reduce the interference of the light in the light guide plate, and to diminish the phenomenon of ripples.

REFERENCES:
patent: 6123430 (2000-09-01), Ono et al.
patent: 6435685 (2002-08-01), Matsushita
patent: 6611304 (2003-08-01), Itoh et al.
patent: 2005/0286008 (2005-12-01), Miyagawa et al.

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