Backlight unit

Details Backlight unit Backlight unit

2006-05-16

2006-05-16

Alavi, Ali (Department: 2875)

Illumination

Edge lighted panel

Light guide

C362S615000, C362S339000

Reexamination Certificate

active

07044628

ABSTRACT:
A backlight unit includes a point light source emitting light and a light guide panel including a holographic pattern formed to have a concentric circle shape having a center at the point light center. Thus, since the incident azimuth angle of light incident on the holographic pattern can be made constant, an efficiency of light exhausted through the light exhaust surface can be improved. Also, since the distribution of the exhaust azimuth angle of the exhaust light can be made uniform, a uniform brightness can be obtained from the exhaust surface.

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patent: 10-0300538 (2001-06-01), None
patent: 2002-70243 (2002-09-01), None
patent: WO 98/26212 (1998-06-01), None

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