Stock material or miscellaneous articles – Self-sustaining carbon mass or layer with impregnant or...
Patent
1997-05-16
1999-06-01
Turner, Archene
Stock material or miscellaneous articles
Self-sustaining carbon mass or layer with impregnant or...
257 9, 257 10, 257 11, 257 77, 313310, 313311, 313326, 313345, 313346R, 313346DC, 313355, 3151693, 4271261, 4271263, 427523, 427529, 427530, 427577, 427585, 428697, 428699, 428701, 428702, H01L 2906
Patent
active
059086998
ABSTRACT:
A cold cathode electron emission structure includes an amorphous carbon matrix having cesium dispersed therein, with the cesium present in substantially non-crystalline form. A cesium-carbon-oxide layer is positioned on the amorphous carbon matrix, constitutes an electron emission surface and causes the cold cathode electron emission structure to exhibit a lowered surface work function. A display structure including the aforedescribed cold cathode electron emission structure further includes a target electrode including a phosphor and exhibiting a target potential for attraction of electrons. A gate electrode is positioned between the electron emission structure and the target electrode and is biased at a gate potential which attracts electrons, but which is insufficient, in combination with the target potential, to cause emission of a beam of electrons from the electron emission structure. A control electrode is coupled to the electron emission structure and selectively applies a low-voltage control potential which, in combination with the gate potential and the target voltage, is sufficient to cause the electron emission structure to emit a beam of electrons towards the target electrode. The cesium-carbon-oxide layer in combination with the control electrode further enables the achievement of a long focal length, field effect display structure.
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Skion Corporation
Turner Archene
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