Direct-type backlight unit structure

Details Direct-type backlight unit structure Direct-type backlight unit structure

2007-06-12

2007-06-12

Tso, Laura (Department: 2875)

Illumination

Elongated source light unit or support

Plural sources or supports therefor

C362S029000, C362S247000, C362S237000, C362S249070

Reexamination Certificate

active

11218629

ABSTRACT:
This invention discloses a direct-type backlight unit structure, which at least comprises at least one light generation component and at least one reflection mirror. The light generation component is used to generate a light and the reflection mirror is set in a side of the light generation component, wherein the reflection mirror faces to the light generation component to form a paraboloid and the paraboloid extends till a top of the light generation component. The reflection mirror can also be set on the top of the light generation component, and faces to the light generation component to form two paraboloids from a center line of the top of the light generation component. The light generated from the light generation component, especially the upward light, can be reflected by the reflection mirror to turn toward the side direction, and finally intermix uniformly in a mixed space, and pass through a light emitting surface to form a uniform backlight.

REFERENCES:
patent: 5008658 (1991-04-01), Russay et al.
patent: 6257737 (2001-07-01), Marshall et al.
patent: 6883932 (2005-04-01), Pan et al.
patent: 2006/0158080 (2006-07-01), Nakano et al.

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