Electroluminescent device and process for producing the same

Details Electroluminescent device and process for producing the same Electroluminescent device and process for producing the same

1988-03-23

1989-10-31

Yusko, Donald J.

Electric lamp and discharge devices

With luminescent solid or liquid material

Solid-state type

313505, 313506, 313509, 427 66, 427 69, 427 70, 428690, 428691, 428917, 2523014S, 2523064H, H05B 3322

Patent

active

048779946

ABSTRACT:
An electroluminescent device comprising an electroluminescent layer capable of emitting light under application of AC voltage, the electroluminescent layer comprising strontium sulfide as a matrix and containing at least one of halides and sulfides of cerium, europium, thulium, terbium and samarium, and having a lattice constant of not more than 6.04 .ANG. and a half-width value at the (111) face of not more than 0.21 degree has a higher brightness than an electroluminescent device having an electroluminescent layer comprising ZnS as a matrix.

REFERENCES:
patent: 4416933 (1983-11-01), Antson et al.
patent: 4442377 (1984-04-01), Higton et al.
patent: 4720436 (1988-01-01), Ohseto et al.
patent: 4725344 (1988-02-01), Yocom et al.
patent: 4727004 (1988-02-01), Tanaka et al.
patent: 4734618 (1988-03-01), Matsudaira et al.
patent: 4751427 (1988-06-01), Barrow et al.

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