Planar light source

Details Planar light source Planar light source

2006-04-17

2008-11-18

Alavi, Ali (Department: 2875)

Illumination

Elongated source light unit or support

Plural sources or supports therefor

C362S614000

Reexamination Certificate

active

07452101

ABSTRACT:
A planar light source is disclosed. The planar light source includes an upper substrate having a central portion and two edge portions and a lower substrate opposite to the upper substrate, wherein a plurality of luminous cavities are formed by and between the upper substrate and the lower substrate. With respect to cross sectional areas, one portion of the luminous cavities corresponding to the central portion of the upper substrate is smaller than the other portion of the luminous cavities corresponding to one of the edge portions of the upper substrate, and thus the lightness produced in the central portion is higher than that in the edge portion.

REFERENCES:
patent: 7159999 (2007-01-01), Yoo et al.
patent: 1609923 (2005-04-01), None
patent: 1621920 (2005-06-01), None
patent: 6075216 (1994-03-01), None
patent: 2005347062 (2005-12-01), None
patent: 1020040013020 (2004-02-01), None
patent: WO 2005/064393 (2005-07-01), None
English language translation of abstract and relevant parts of JP6075216, Mar. 18, 1994.
English language translation of abstract and pertinent parts of CN 1609923, Apr. 27, 2005.
English language translation of abstract and pertinent parts of CN 1621920, Jun. 1, 2005.
English language translation of abstract of JP 2005347062, Dec. 15, 2005.

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