Electric lamp and discharge devices – Electrode and shield structures – Cathodes containing and/or coated with electron emissive...
Patent
1994-03-21
1996-05-21
O'Shea, Sandra L.
Electric lamp and discharge devices
Electrode and shield structures
Cathodes containing and/or coated with electron emissive...
H01J 114
Patent
active
055192807
ABSTRACT:
An oxide cathode is provided including an electron emissive material layer including barium, a metal base, a sleeve and a heater, wherein the electron emissive material layer further includes 0.1 to 20 wt. % of tin or a tin compound, based on the total amount of the electron emissive material, and indium or an indium compound.
REFERENCES:
patent: 5122707 (1992-01-01), Nakanishi et al.
patent: 5146131 (1992-09-01), Derks
patent: 5216320 (1993-06-01), Koizumi et al.
patent: 5347194 (1994-09-01), Derks
Choi Jong-seo
Choi Kwi-seok
Ju Gyu-nam
Lee Sang-won
Shon Kyung-cheon
O'Shea Sandra L.
Patel Ashok
Samsung Display Devices Co. Ltd.
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