Illumination – Edge lighted panel – Particular application
Reexamination Certificate
2007-02-20
2010-06-15
O'Shea, Sandra L (Department: 2875)
Illumination
Edge lighted panel
Particular application
C362S029000, C362S800000, C362S024000, C362S028000, C362S086000, C362S625000, C362S026000, C362S614000, C362S629000
Reexamination Certificate
active
07736042
ABSTRACT:
Provided is a back light unit. The back light unit includes a light guide plate having a light guide pattern part; at least one light emitting unit provided at a sidewall of the light guide plate, and irradiating light to the light guide plate; a keypad positioned over the light guide plate, and comprising a resin layer, a base resin layer, a character opening part having a character shape, a key assembly provided at one side, and a key adherence film provided on an upper surface of the base resin layer; and a printed circuit board comprising a metal dome switch positioned under a lower surface of the light guide plate.
REFERENCES:
patent: 5207493 (1993-05-01), Murase et al.
patent: 6300940 (2001-10-01), Ebina et al.
patent: 7181251 (2007-02-01), Stohr et al.
patent: 7364337 (2008-04-01), Park
patent: 09-274183 (1997-10-01), None
patent: 2001-135193 (2001-05-01), None
patent: 2002-077968 (2002-03-01), None
patent: 2003-087388 (2003-03-01), None
patent: 2004-071258 (2004-03-01), None
patent: 2004-186055 (2004-07-01), None
patent: 2004-199964 (2004-07-01), None
patent: 2004-295187 (2004-10-01), None
patent: 20-1998-034575 (1998-05-01), None
patent: 10-2000-0009556 (2000-02-01), None
patent: 10-0270881 (2000-08-01), None
patent: 10-2001-0039294 (2001-05-01), None
patent: 10-2002-0032677 (2002-05-01), None
patent: 10-2003-0042723 (2003-06-01), None
Balk Ki Yong
Cho Hyun Jung
Choi Kyu Jin
Hyun Young Jin
Lee Jun Kyu
LS Tech Co. Ltd.
McMillan Jessica L
O'Shea Sandra L
Park John K.
Park Law Firm
LandOfFree
Back light unit does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Back light unit, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Back light unit will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4248829