发明名称 |
Kathode voor een elektronenbuis. |
摘要 |
A cathode for an electron tube includes a base metal containing nickel as a major component and an electron-emissive material layer which is formed on the base metal and comprises an alkaline earth metal oxide including barium oxide as its main component, wherein the electron-emissive material layer further comprises a lanthanum-magnesium-manganese oxide. The cathode of the present invention is fully interchangeable with conventional oxide cathodes and has a longer lifetimes and an improved cut-off drift characteristic. |
申请公布号 |
NL1003086(C2) |
申请公布日期 |
1998.05.14 |
申请号 |
NL19961003086 |
申请日期 |
1996.05.10 |
申请人 |
SAMSUNG DISPLAY DEVICES CO.,LTD. |
发明人 |
KYU-NAM JOO;JONG-SEO CHOI;KWI-SEUK CHOI;GEUN-BAE KIM;SANG-WON LEE |
分类号 |
H01J1/14;H01J1/04;H01J1/142;H01J1/20 |
主分类号 |
H01J1/14 |
代理机构 |
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代理人 |
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主权项 |
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地址 |
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