Thin film electroluminescence device

Electric lamp and discharge devices – With luminescent solid or liquid material – Solid-state type

Patent

Rate now

  [ 0.00 ] – not rated yet Voters 0   Comments 0

Details

313509, H05B 3318, H05B 3322

Patent

active

047178582

ABSTRACT:
A thin film electroluminescence device comprising an electrode layer, an emitting layer and an electrode layer formed on a substrate one over another, and an insulating layer optionally interposed between the three layers, the emitting layer being made of CaS serving as a host material and doped with Eu.sup.2+ providing luminescent centers.
The emitting layer comprising a novel combination of host material and luminescent center produces a red electroluminescence with a high brightness.

REFERENCES:
patent: 3283194 (1966-11-01), Rulon
patent: 4213074 (1980-07-01), Kawaguchi et al.
patent: 4365184 (1982-12-01), Higton et al.
patent: 4442377 (1984-04-01), Higton et al.
patent: 4599539 (1986-07-01), Ishizuka et al.
"Activators & Co-Activators in Calcium Sulfide Phosphors" By W. Lehmann, Journal of Luminescence, (1972), North-Holland Pub. Co., pp. 87 and 100.
"Cathodoluminescence of CaS:Ce.sup.2+ and CaS:Eu.sup.2+ Phosphors" By W. Lehmann et al., Luminescence of Solid Solutions, vol. 118, No. 3, Mar. 1971, pp. 477-482.

LandOfFree

Say what you really think

Search LandOfFree.com for the USA inventors and patents. Rate them and share your experience with other people.

Rating

Thin film electroluminescence device does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Thin film electroluminescence device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Thin film electroluminescence device will most certainly appreciate the feedback.

Rate now

     

Profile ID: LFUS-PAI-O-9996

  Search
All data on this website is collected from public sources. Our data reflects the most accurate information available at the time of publication.