Electric lamp and discharge devices – With gas or vapor – Three or more electrode discharge device
Reexamination Certificate
2005-04-07
2010-10-12
Patel, Ashok (Department: 2889)
Electric lamp and discharge devices
With gas or vapor
Three or more electrode discharge device
C313S587000, C445S023000, C445S025000
Reexamination Certificate
active
07812534
ABSTRACT:
A gas discharge display panel exhibits a favorable display performance by increasing a wall charge retaining property, controlling a discharge delay for optimal image display, and reducing the discharge starting voltage. A PDP can exhibit enhanced display quality by improving a secondary electron emission factor γ compared to conventional cases and lowering the discharge starting voltage to widen the driving margin. A manufacturing method for a gas discharge display panel can reduce the exhaustion time in the sealing exhaustion process, and driving circuit component costs are reduced. In a gas discharge display panel, a protective layer includes a first and a second protective film, the second protective film is formed on at a least part of a surface of the first protective film. The first protective film has a larger impurity content than the second protective film.
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Hashimoto Jun
Kitagawa Masatoshi
Nishitani Mikihiko
Terauchi Masaharu
Yamamoto Shin-ichi
Panasonic Corporation
Patel Ashok
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