Electric lamp and discharge devices – Discharge devices having a thermionic or emissive cathode
Reexamination Certificate
2008-05-13
2008-05-13
Ho, Allen C. (Department: 2882)
Electric lamp and discharge devices
Discharge devices having a thermionic or emissive cathode
C313S311000
Reexamination Certificate
active
07372193
ABSTRACT:
A cold cathode light emitting device includes a plurality of first electrodes, a plurality of insulating layers, a plurality of second electrodes and a third electrode. The insulating layers are laminated on the first electrodes. The second electrodes are provided on the insulating layers to intersect the first electrodes. The third electrode emits light upon receipt of electrons. At least one hole is provided at intersections of the first electrodes and second electrodes. The hole has a first diameter d1 at a position where the insulating layers are in contact with the first electrodes and a second diameter d2 at a position where the insulating layers are in contact with the second electrodes, where d1 is smaller than d2. A nanofiber-structure layer is formed on the first electrodes in an opening portion having the first diameter d1, provided in the at least one hole on the side of the first electrodes.
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Birch & Stewart Kolasch & Birch, LLP
Ho Allen C.
Mitsubishi Denki & Kabushiki Kaisha
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