Electric lamp and discharge devices – With gas or vapor – Three or more electrode discharge device
Reexamination Certificate
2008-11-27
2011-12-27
Guharay, Karabi (Department: 2889)
Electric lamp and discharge devices
With gas or vapor
Three or more electrode discharge device
C313S112000
Reexamination Certificate
active
08084943
ABSTRACT:
Disclosed is a plasma display panel wherein reduction of reflection and improvement in contrast and sharpness of image light can be attained at the same time. Specifically disclosed is a plasma display panel (10) comprising a front plate (200) and a back plate (100) arranged at a distance from each other, a partition wall (110) for dividing the discharge space formed between the front plate (200) and the back plate (100), a phosphor layer (130) formed within a discharge cell (120) defined by the partition wall (110), electrodes respectively arranged on the front plate (200) and the back plate (100) for producing a discharge within the discharge cell (120), and a front filter (300) arranged on the viewer side of the front plate (200). The front filter (300) has two resin layers (320, 330) having different refractive indexes on the viewer side, and the viewer side surface of the front filter (300) and the interface between the two resin layers (320, 330) respectively have fine recesses and projections.
REFERENCES:
patent: 2006/0250064 (2006-11-01), Park et al.
patent: 2010/0177397 (2010-07-01), Kamiyama et al.
patent: 5-278157 (1993-10-01), None
patent: 2000-275401 (2000-10-01), None
patent: 2005-316450 (2005-11-01), None
patent: 2006-313360 (2006-11-01), None
Guharay Karabi
Hamre Schumann Mueller & Larson P.C.
Panasonic Corporation
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