Backlight unit of direct type

Details Backlight unit of direct type Backlight unit of direct type

2011-06-28

2011-06-28

Payne, Sharon E (Department: 2875)

Illumination

Edge lighted panel

Light source

C362S097100

Reexamination Certificate

active

07967490

ABSTRACT:
The present invention provides a backlight unit including an LED module and a frame separately, and each separated part is stable and is capable of simple use and assembly. The backlight unit of direct type includes a plurality of makeup LED modules including an LED package of direct type on a PCB and a heat sink releasing heat generated from driving the LED package of direct type, a reflection plate reflecting light emitted from the makeup LED module to a front face, and attached at the remaining surface except for the makeup LED packages, an optical sheet disposed on the reflection plate, and improving brightness and uniformity of the light emitted from the makeup LED module and the reflection plate, and guide the light into a front face of the optical sheet and a frame including a guide rail to combine the makeup LED module by a sliding combination.

REFERENCES:
patent: 2006/0002142 (2006-01-01), Jeong et al.
patent: 2007/0002590 (2007-01-01), Jang et al.
patent: 1020070052315 (2007-05-01), None
patent: 1020070057462 (2007-06-01), None
patent: 100875703 (2008-12-01), None

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