发明名称 |
An indirectly heated cathode sleeve and manufacturing method thereof. |
摘要 |
<p>An indirect cathode sleeve and manufacturing method thereof capable of substantially reducing electric power consumption of a heater disposed inside the cathode sleeve and simultaneously reducing a picture-producing time by making an inside surface of the cathode sleeve oxidized and an outside surface of the thereof reduced. The cathode sleeve according to the present invention includes a heater disposed inside the cathode sleeve; a base metal formed at the top of cathode sleeve; an electron-emitting material layer formed at the outside surface of the base metal; and an indirect cathode sleeve including a black inside surface thereof and a white outside surface thereof. The method for manufacturing an indirect cathode sleeve includes the steps of forming a structure of a cathode sleeve consisting of a bimetal which consist of a NickelChrome alloy at an inside surface of the cathode sleeve and a Nickel alloy at an outside surface of the cathode sleeve; oxidizing the inside surface of the cathode sleeve through a high temperature wet hydrogen environment; selectively etching the outside surface of the cathode sleeve, as a result, forming a base metal at the top of the cathode sleeve; and forming an electron-emitting material layer at the outside surface of the base metal. <IMAGE></p> |
申请公布号 |
EP0644569(A2) |
申请公布日期 |
1995.03.22 |
申请号 |
EP19940306754 |
申请日期 |
1994.09.15 |
申请人 |
LG ELECTRONICS INC. |
发明人 |
JUNG,GIL YOUNG;LEE, KYEONG SANG;PARK,GONG SEOK;KO,BYEONG DOO;PARK, HUN GUN |
分类号 |
H01J1/20;H01J1/26;H01J9/04;(IPC1-7):H01J1/26 |
主分类号 |
H01J1/20 |
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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