Electric lamp and discharge devices – With gas or vapor – Three or more electrode discharge device
Reexamination Certificate
2007-08-10
2011-12-06
Hines, Anne (Department: 2879)
Electric lamp and discharge devices
With gas or vapor
Three or more electrode discharge device
C313S586000, C313S587000, C445S025000
Reexamination Certificate
active
08072141
ABSTRACT:
A plasma display device is provided. The plasma display device includes a plasma display panel (PDP) and an external light shield sheet which absorbs external light incident upon the PDP. The external light shield sheet includes a base unit and a plurality of pattern units which are formed in the base unit. Each of the pattern units contains 2-10 weight % of light absorption particles having a size of 1 μm or less. Since the external light shield sheet which can absorb and shield as much external light as possible is disposed at the front of the PDP, the plasma display device can effectively realize black images and improve bright room contrast.
REFERENCES:
patent: 4509824 (1985-04-01), Yamasaki et al.
patent: 6657387 (2003-12-01), Yoo
patent: 6822792 (2004-11-01), Goto
patent: 2004/0157141 (2004-08-01), Ito
patent: 2004/0217681 (2004-11-01), Park et al.
patent: 2005/0181234 (2005-08-01), Iida et al.
patent: 2006/0139749 (2006-06-01), Watanabe et al.
patent: 2006/0145578 (2006-07-01), Park et al.
patent: 2006/0287433 (2006-12-01), Kanae et al.
patent: 1 357 575 (2003-10-01), None
patent: WO 2005116740 (2005-12-01), None
European Office Action dated Nov. 17, 2008.
Cha Hong Rae
Cho Sam Je
Jang Woo Sung
Shin Woon Seo
Sohn Ji Hoon
Green Tracie
Hines Anne
KED & Associates LLP
LG Electronics Inc.
LandOfFree
External light shield sheet and plasma display device using... does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with External light shield sheet and plasma display device using..., we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and External light shield sheet and plasma display device using... will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-4310134