Electric lamp and discharge devices – With luminescent solid or liquid material – Solid-state type
Patent
1984-10-29
1987-05-12
DeMeo, Palmer C.
Electric lamp and discharge devices
With luminescent solid or liquid material
Solid-state type
313509, 427 66, H05B 3310, H05B 3312, B05D 506
Patent
active
046653422
ABSTRACT:
A polymer electroluminescent display is provided which comprises a number of individual light-emitting elements in a selected formation and adapted for excitation from a voltage supply. The formation, which is formed on a substrate, includes copper conductors etched onto the substrate. a plurality of polymer dielectrics with relatively high dielectric constant are screen printed over the conductors, with each dielectric corresponding to an individual light-emitting element. A plurality of light-emitting polymer phosphors are screen printed over the dielectrics with each phosphor corresponding to an individual light-emitting element. A polymer indium oxide light-transmissive conductor is screen printed over each phosphor. A polymer dielectric with a relatively low dielectric constant separates each of the individual light-emitting elements from each other and alleviates cross-talk between the individual light-emitting elements. A conductive silver polymer ink is printed over the light-transmissive conductor with portions of the silver polymer defining window openings for enabling viewing of the phosphor through the light-transmissive layer when the phosphor is excited. Voltage excitation by a dynamic voltage supply across a selected copper conductor and the silver polymer will cause light emission by the light-emitting element at the excited location.
REFERENCES:
patent: 2877371 (1959-03-01), Orthuber et al.
patent: 2925532 (1960-02-01), Larach
patent: 2938135 (1960-05-01), Toulon
patent: 2958009 (1960-10-01), Bowerman, Jr.
patent: 2969481 (1961-01-01), Sack, Jr.
patent: 3315111 (1967-04-01), Jaffe et al.
patent: 3631286 (1971-12-01), Anderson et al.
patent: 4188565 (1980-02-01), Mizukami et al.
patent: 4238793 (1980-12-01), Hochstrate
patent: 4322720 (1982-03-01), Hughes
patent: 4417174 (1983-11-01), Kamijo et al.
"Design Guide--Electroluminescent Lighting" by Luminescent Systems, Inc. pp. 1 to 69.
Hadden Sam
Topp Mark
Cordis Corporation
DeMeo Palmer C.
Gerstman George H.
O'Shea Sandra L.
LandOfFree
Screen printable polymer electroluminescent display with isolati does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Screen printable polymer electroluminescent display with isolati, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Screen printable polymer electroluminescent display with isolati will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-1804551