Illumination – Edge lighted panel – Light guide
Reexamination Certificate
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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Choi Hwan-young
Choi Jin-seung
Kim Jin-hwan
Lee Moon-gyu
Lee Su-mi
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