Electric lamp and discharge devices – With luminescent solid or liquid material – Vacuum-type tube
Patent
1996-12-13
1998-12-01
O'Shea, Sandra L.
Electric lamp and discharge devices
With luminescent solid or liquid material
Vacuum-type tube
313496, 313497, 25230145, H01J 162, B32B 516
Patent
active
058443614
ABSTRACT:
A field emission display (100, FIG. 1) having a stabilized phosphor (110, FIG. 1) includes a cathode plate (130, FIG. 1) having a plurality of field emitters (160, FIG. 1), an anode plate (120, FIG. 1) opposing the cathode plate (130, FIG. 1), and a stabilized sulfide phosphor disposed on the anode plate (120, FIG. 1) to receive electrons from the plurality of field emitters (160, FIG. 1). The stabilized sulfide phosphor includes a sulfide phosphor core containing vacuum-unstable sulfur and a stabilized surface made from a more thermodynamically stable material, which is more thermodynamically stable against outgassing than the vacuum-unstable sulfur of the sulfide phosphor core. The stabilized phosphor (110, FIG. 1) can alternatively include a stabilized oxide phosphor that has an oxide phosphor core containing vacuum-unstable oxygen and a stabilized surface made from a more thermodynamically stable material, which is more thermodynamically stable against outgassing than the vacuum-unstable oxygen of the oxide phosphor core.
REFERENCES:
patent: 3560783 (1971-02-01), Shortes
patent: 3607371 (1971-09-01), Haynes et al.
patent: 4263339 (1981-04-01), Fischer
patent: 4690832 (1987-09-01), Yale
patent: 5418062 (1995-05-01), Buidd
Petersen Ronald O.
Trottier Troy A.
Motorola Inc.
O'Shea Sandra L.
Parsons Eugene A.
Tobin Kathleen Anne
Williams Joseph
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