Planar light source and backlight unit including the same

Details Planar light source and backlight unit including the same Planar light source and backlight unit including the same

2011-06-28

2011-06-28

Ton, Anabel M (Department: 2875)

Illumination

Display backlight

C362S612000, C362S613000, C362S227000, C362S249010, C362S249020

Reexamination Certificate

active

07967460

ABSTRACT:
A planar light source and a backlight unit including the same are disclosed. The planar light source includes a light emission region formed by arrangements of light emitting devices. The light emission region includes first to nthseparate parts each having a center of the light emission region as one vertex (n: natural number of 2 or higher). The first separate part includes light emitting devices arranged two-dimensionally in first and second directions. A pitch in the first direction is different from a pitch in the second direction in at least a portion of the two-dimensional arrangement structure. Light emitting devices of each of the second to nthseparate parts have an arrangement structure obtained by a clockwise or counter-clockwise rotation of the arrangement structure of the light emitting devices of the first separate part by an angle of 1
×360° about the center of the light emission region.

REFERENCES:
patent: 6000812 (1999-12-01), Freeman et al.
patent: 7387421 (2008-06-01), Lee et al.
patent: 7661834 (2010-02-01), Fenyo
patent: 7677750 (2010-03-01), Jeon et al.
patent: 2007-0007584 (2007-01-01), None
patent: 2007-0074825 (2007-07-01), None

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