Radiation imagery chemistry: process – composition – or product th – Imaging affecting physical property of radiation sensitive... – Making electrical device
Patent
1995-07-03
1997-09-23
McPherson, John A.
Radiation imagery chemistry: process, composition, or product th
Imaging affecting physical property of radiation sensitive...
Making electrical device
430318, 430319, 430 25, 430 26, 445 24, 445 52, H01J 9227
Patent
active
056702965
ABSTRACT:
A high efficiency field emission display, and a method for manufacturing such a display, having reduced driver circuit requirements, and which may be operated over a range of anode voltages while efficiently using existing phosphors, is described. A field emission display having a baseplate and an opposing face plate, includes a glass plate acts as a base for the faceplate. There is a patterned layer, having openings, of black matrix material over the glass plate. A plurality of phosphorescent elements are formed in and adjacent to the openings in the black matrix layer. A metal film overlays a portion of the top surface of each of the phosphorescent elements. The metal film may be patterned in a mesh or in other shapes, and provides for the highly efficient operation of the display of the invention. The baseplate, formed on a substrate, is mounted opposite and parallel to the faceplate, and has a conductive layer over the substrate. A plurality of electron-emitting tips formed on the baseplate extend through openings in the conductive layer, and are opposite to the phosphorescent elements. Finally, there is a means for establishing a differential voltage between the conductive layer and the metal film.
REFERENCES:
patent: 5225820 (1993-07-01), Clerc
patent: 5477105 (1995-12-01), Curtin et al.
patent: 5508584 (1996-04-01), Tsai
Ackerman Stephen B.
Industrial Technology Research Institute
McPherson John A.
Saile George O.
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