Electric lamp and discharge devices – Discharge devices having a multipointed or serrated edge...
Patent
1998-06-08
1999-03-09
O'Shea, Sandra
Electric lamp and discharge devices
Discharge devices having a multipointed or serrated edge...
313306, 313308, 313497, H01J 1938, H01J 9227
Patent
active
058805540
ABSTRACT:
Described are methods for making, and resultant structures of, a field emission display with soft luminescence and a comfortable image for a viewer of the display. The field emission display is formed with a baseplate and an opposing face plate. Field emission microtips are formed in openings in a conductive and insulating layer on the baseplate. An anode is formed on either the faceplate, or on the conductive layer surrounding each opening. Phosphorescent material is formed over the anode, A blocking layer is formed between the phosphor and the faceplate, such that during operation of the display direct light emission from the phosphor is blocked, resulting in indirect phosphorescence and a more comfortable display image. An optional reflective layer may be added over the conductive layer to increase phosphorescence.
REFERENCES:
patent: 4908539 (1990-03-01), Meyer
patent: 5493173 (1996-02-01), Imura
patent: 5633560 (1997-05-01), Huang
Ackerman Stephen B.
Industrial Technology Research Institute
O'shea Sandra
Saile George O.
Williams Joseph
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