Side emitting device, backlight unit using the same as light...

Details Side emitting device, backlight unit using the same as light... Side emitting device, backlight unit using the same as light...

2008-01-29

2008-01-29

Payne, Sharon E. (Department: 2875)

Illumination

Light modifier

Refractor

C362S336000, C362S623000

Reexamination Certificate

active

07322721

ABSTRACT:
A side emitting device, a backlight unit using the same as a light source, and a liquid crystal display (LCD) employing the backlight unit. The side emitting device includes a light-emitting device to emit light, and a side emitter to change the path of at least part of the light emitted from the light-emitting device. The side emitter includes a first reflecting surface reflecting light emitted from the light-emitting device in a first range of angles close to a central axis, a first refracting surface refracting the light reflected by the first reflecting surface obliquely downward from the horizontal axis, and a second refracting surface refracting light emitted from the light-emitting device in a second range of angles complementary to the first range of angles. The backlight unit includes at least an array of side emitting devices, a reflection diffusion plate and a first transmission diffusion plate.

REFERENCES:
patent: 6598998 (2003-07-01), West et al.
patent: 6679621 (2004-01-01), West et al.
patent: 6997571 (2006-02-01), Tenmyo
patent: 2005/0001537 (2005-01-01), West et al.
patent: 2000-299500 (2000-10-01), None
patent: 2003-158302 (2003-05-01), None
patent: 2003-258319 (2003-09-01), None

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