Electric lamp and discharge devices – With luminescent solid or liquid material – Solid-state type
Patent
1995-02-09
1997-01-28
Horabik, Michael
Electric lamp and discharge devices
With luminescent solid or liquid material
Solid-state type
313509, H01J 162
Patent
active
055980589
ABSTRACT:
A thick-film multi-color electroluminescent display (10) includes a transparent substrate (12), a transparent electrode (14) deposited on the substrate (12), a phosphor layer (16) deposited on the transparent electrode (14) having two regions (18, 20) having different compositions providing visually distinct spectra of light when placed in a common electric field, a dielectric layer (22) deposited on the phosphor layer (16), and a second electrode (24) deposited on the dielectric layer (22). In an alternate embodiment, the phosphor layer (16) is composed of a marbled ink having a mixture of a first phosphor ink and a second phosphor ink having different compositions providing visually distinct spectra of light when placed in a common electric field. In another alternate embodiment, the phosphor layer (16) is composed of at least two halftone screen prints corresponding to at least two phosphor compositions providing visually distinct spectra of light when placed in a common electric field.
REFERENCES:
patent: 2925532 (1960-02-01), Larach
patent: 3496410 (1970-02-01), MacIntyre
patent: 4027192 (1977-05-01), Hanak
patent: 4862033 (1989-08-01), Migita et al.
patent: 4908603 (1990-03-01), Yamaue et al.
patent: 5043715 (1991-08-01), Kun et al.
patent: 5047686 (1991-09-01), Robertson
patent: 5239227 (1993-08-01), Kikinis
patent: 5294869 (1994-03-01), Tang et al.
patent: 5294870 (1994-03-01), Tang et al.
"Technical Guidebook of the Screen Printing Industry", Screen Printing Association International Daniel Levine, Reproduction Photography, 1982 vol. I, C1.
"Technical Guidebook of the Screen Printing Industry", Screen Printing Association International Hans-Gerd Scheer, Four-Color Halftones in Screen Printing, 1982 vol. I, C7.
Day Michael
Horabik Michael
Leading Edge Industries, Inc.
Weins Michael J.
LandOfFree
Multi-color electroluminescent display does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Multi-color electroluminescent display, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Multi-color electroluminescent display will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-943258