Electric lamp and discharge devices – With luminescent solid or liquid material – Solid-state type
Patent
1993-10-15
1997-04-29
O'Shea, Sandra L.
Electric lamp and discharge devices
With luminescent solid or liquid material
Solid-state type
313503, H01J 162
Patent
active
056252552
ABSTRACT:
An inorganic thin film EL device comprises a substrate, a pair of electrode layers and a pair of insulating layers formed on the substrate in this order, and a light emission layer sandwiched between the paired insulating layers and arranged such that light emitted from the light emission layer is taken out from one side the light emission layer. The light emission layer is made of a composition which consists essentially of a fluoride of a metal of the group II of the Periodic Table and a member selected from the group consisting of rare earth elements and compounds thereof. The metal fluoride is of the formula, M.sub.1-x F.sub.2+y or M.sub.1+x F.sub.2-y, wherein M represents a metal of the group II of the Periodic Table, x is a value ranging from 0.001 to 0.9 and y is a value ranging from 0.001 to 1.8. The device is useful as a flat light source.
REFERENCES:
patent: 4512911 (1985-04-01), Kotera
patent: 4751427 (1988-06-01), Barrow
patent: 5198721 (1993-03-01), Kahng
patent: 5286517 (1994-02-01), Kahng
patent: 5384517 (1995-01-01), Uno
patent: 5543237 (1996-08-01), Watanabe
patent: 5552667 (1996-09-01), Cho et al.
Fuji 'Xerox Co., Ltd.
O'Shea Sandra L.
Patel Vip
LandOfFree
Inorganic 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 Inorganic thin film electroluminescence device, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Inorganic thin film electroluminescence device will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-708624