Electric lamp and discharge devices – With gas or vapor – Three or more electrode discharge device
Patent
1996-12-16
1998-06-23
O'Shea, Sandra L.
Electric lamp and discharge devices
With gas or vapor
Three or more electrode discharge device
313582, 313586, 313572, H01J 1700, H01J 6100
Patent
active
057709211
ABSTRACT:
The first object of the present invention is to provide a PDP with improved panel brightness which is achieved by improving the efficiency in conversion from discharge energy to visible rays. The second object of the present invention is to provide a PDP with improved panel life which is achieved by improving the protecting layer protecting the dielectrics glass layer. To achieve the first object, the present invention sets the amount of xenon in the discharge gas to the range of 10% by volume to less than 100% by volume, and sets the charging pressure for the discharge gas to the range of 500 to 760Torr which is higher than conventional charging pressures. With such construction, the panel brightness increases. Also, to achieve the second object, the present invention has, on the surface of the dielectrics glass layer, a protecting layer consisting of an alkaline earth oxide with (100)-face or (110)-face orientation. The protecting layer, which may be formed by using thermal Chemical Vapor Deposition (CVD) method, plasma enhanced CVD method, or a vapor deposition method with irradiation of ion or electron beam, will have a high sputtering resistance and effectively protect the dielectrics glass layer. Such a protecting layer contributes to the improvement of the panel life.
REFERENCES:
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2.2 Discharge Gas, Optical Techniques Contact, vol. 34, No. 1, 1996 pp. 22-29.
"Study on Ultraviolet Radiation of Rare Gas in a Gas-Discharge Display Panel," by M. Yokozawa et al., NHK Techniques Study, 31-1, 1979 pp. 14-21.
Flat Panel Display '96, Part S-3, pp. 208-215.
"33.4: (He, Ne)-Xe Gas Mixtures of High-Luminance Color ac PDP," by M. Noborio et al., SID 94 Digest, 1997, pp. 727-730.
"Specification and Characteristics of Recent Color PDP," Function & Materials, Feb. 1996, vol. 16, No. 2 pp. 4-13.
"State and Problems of Gas Discharge Display,", by Y. Okamoto, Applied Physics, vol. 51, No. 3, 1982 pp. 344-347.
Aoki Masaki
Fujii Eiji
Inami Takashi
Ishikura Yasuhisa
Kawamura Hiroyuki
Matsushita Electric Co., Ltd.
O'Shea Sandra L.
Patidar Jay M.
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