Electric lamp and discharge devices – With luminescent solid or liquid material – Solid-state type
Patent
1994-12-29
1997-03-18
O'Shea, Sandra L.
Electric lamp and discharge devices
With luminescent solid or liquid material
Solid-state type
313506, 428917, H01J 163
Patent
active
056125917
ABSTRACT:
An electroluminescent device comprising the sequential lamination of a first electrode, first insulating layer, phosphor layer, second insulating layer and second electrode while using an optically transparent material at least on the side on which light leaves the device; wherein, in addition to the phosphor layer being composed of calcium thiogallate (CaGa.sub.2 S.sub.4) doped with a luminescent center element, the host of the phosphor layer is strongly oriented to the (400) surface.
REFERENCES:
patent: 4751427 (1988-06-01), Barrow et al.
patent: 5309070 (1994-05-01), Sun et al.
patent: 5444268 (1995-08-01), Miyakoshi et al.
1978 SID International Symposium Digest of Technical Papers, Apr. 1978.
Journal of the Society of Japan, vol. 48, No. 4, Apr. 1980, Teruhiko Hoshina pp. 158-165.
J. Electrochem, Soc.: Solid-State Science and Technology, Feb. 1972 T. E. Peters et al, pp. 230-236.
SID 93 Digest 1993 32.1: A New Class of Blue TFEL Phosphors with Application to a VGA Full-Color Display W.A. Barrow et al, pp. 761-764.
SID 86 Digest 1986 4.2: Red and Blue Electroluminescence in Alkaline-Earth Sulfide Thin-Film Devices Shosaku Tanaka et al, pp. 29-32.
Hattori Tadashi
Ito Nobuei
Katayama Masayuki
Kato Akira
Nippondenso Co. Ltd.
O'Shea Sandra L.
Patel Ashok
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