Backlight device and display device using the same

Illumination – Edge lighted panel – Light modifier for edge lit light source

Reexamination Certificate

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Details

C362S621000, C362S616000, C362S097300

Reexamination Certificate

active

07810977

ABSTRACT:
A backlight device includes a main light guide plate, auxiliary light guide portions provided on the side of an opposed surface of the main light guide plate, and light sources arranged to emit light into the auxiliary light guide portions. A reflector is arranged to surround the introduction surface of the main light guide plate and the auxiliary light guide portions. Furthermore, an optical path forming member is provided on the inside of the reflector so as to form a dedicated optical path from the auxiliary light guide plate to the main light guide plate. Thereby, the light emitted from one auxiliary light guide portion is prevented from entering into another auxiliary light guide portion.

REFERENCES:
patent: 6951401 (2005-10-01), Van Hees et al.
patent: 7188988 (2007-03-01), Koganezawa
patent: 7213960 (2007-05-01), Yoo
patent: 7413334 (2008-08-01), Baba
patent: 7585098 (2009-09-01), Mikami
patent: 2006/0022935 (2006-02-01), Sakai et al.
patent: 2006/0114690 (2006-06-01), Iki et al.
patent: 2009/0303417 (2009-12-01), Mizushima et al.
patent: 2003-057622 (2003-02-01), None
patent: 2004-171947 (2004-06-01), None
patent: 2005-250020 (2005-09-01), None
patent: 2005-338290 (2005-12-01), None
Official communication issued in the International Application No. PCT/JP2006/321221, mailed on Jan. 9, 2007.

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