发明名称 |
Device cathode with extractor grid for display |
摘要 |
A display device includes field emission cathode apparatus for emitting electrons. A plurality of electron beams are formed from the field emission cathode apparatus. A screen, which has a phosphor coating facing the cathode receives the plurality of electron beams. The phosphor coating includes a plurality of pixels each corresponding to a different one of said plurality of electron beams. A grid electrode is disposed between the cathode and the screen for controlling the flow of electrons from the cathode. The field emission cathode includes extractor grid means, having a plurality of separately addressable portions associated with each of said plurality of pixels. A gamma transfer function between input data value and beam current is provided in order to emulate a conventional CRT. This can be achieved by use of a lookup table.
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申请公布号 |
US5889372(A) |
申请公布日期 |
1999.03.30 |
申请号 |
US19970887392 |
申请日期 |
1997.07.02 |
申请人 |
INTERNATIONAL BUSINESS MACHINES CORPORATION |
发明人 |
BEETESON, JOHN;KNOX, ANDREW RAMSAY |
分类号 |
H01J31/12;H01J29/46;H01J29/52;(IPC1-7):H01J1/30 |
主分类号 |
H01J31/12 |
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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