Direct-type backlight

Details Direct-type backlight Direct-type backlight

2007-11-06

2007-11-06

O'Shea, Sandra (Department: 2875)

Illumination

Light modifier

Reflector

C362S257000, C362S267000, C362S296040, C362S800000, C362S329000, C362S339000, C362S347000

Reexamination Certificate

active

11105397

ABSTRACT:
The present invention provides A direct-type backlight having: a resin sealing member including at least one resin layer, which has a light reflecting section formed on the outermost surface of the resin sealing member; an optical semiconductor element sealed by the resin sealing member; and plural circular light scattering grooves formed concentrically on at least one surface of the resin layer, wherein an area of a circle in the center and an area among the respective concentric circles are substantially the same.

REFERENCES:
patent: 5300169 (1994-04-01), Tahara
patent: 5770306 (1998-06-01), Suzuki et al.
patent: 6290364 (2001-09-01), Koike et al.
patent: 6603520 (2003-08-01), Umemoto et al.
patent: 6777719 (2004-08-01), Fujii
patent: 6873092 (2005-03-01), Tomoda et al.
patent: 6890800 (2005-05-01), Takehara et al.
patent: 2003/0090888 (2003-05-01), Mizutani et al.
patent: 2003/0151361 (2003-08-01), Ishizaka
patent: 2004/0065886 (2004-04-01), Eliashevich et al.
patent: 2000-184137 (2000-06-01), None

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