Coating processes – Electrical product produced – Integrated circuit – printed circuit – or circuit board
Patent
1991-04-30
1992-04-14
Bell, Janyce
Coating processes
Electrical product produced
Integrated circuit, printed circuit, or circuit board
427 66, 427 68, 427108, 427109, 4271261, 427282, 4273722, B05D 306, B05D 506
Patent
active
051046830
ABSTRACT:
The invention is a multi-color luminescent display 10 comprising an insulator substrate 11 and a single layer of host material 13 which may be a phosphor deposited thereon that hosts one or more different impurities 14, therein forming a pattern of selected and distinctly colored phosphors such as blue, green and red phosphors in the single layer of host material 13. Transparent electrical conductor means 12 may be provided for subjecting selected portions of the pattern of colored phosphors to an electric field thereby forming a multi-color, single layer electroluminescent display.
A method of forming a multi-color luminescent display 10 includes the steps of depositing on an insulator substrate a single layer of host material which itself may be a phosphor with the properties to host varying quantities of different impurities 14; and introducing one or more of said different impurities into selected areas of said single layer of host material as by thermal diffusion or ion-implantation to form a pattern of phosphors of different colors in said single layer of host material.
REFERENCES:
patent: 4121010 (1978-10-01), Lasky et al.
patent: 4341571 (1982-07-01), Hiss et al.
patent: 4717606 (1988-01-01), Hale
patent: 4733128 (1988-03-01), Tohida et al.
patent: 4792500 (1988-12-01), Kojima
patent: 4862033 (1989-08-01), Migita et al.
patent: 4877994 (1989-10-01), Fuyama et al.
Proceedings of the SID. vol. 25, No. 1984, Kitai et al., Los Angeles, Calif. "Two Color Thin Film Electroluminesce With Spatially Selective Activator Doping".
Bell Janyce
Osborne Kevin B.
The United States of America as represented by the Administrator
LandOfFree
Single layer multi-color luminescent display and method of makin does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Single layer multi-color luminescent display and method of makin, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Single layer multi-color luminescent display and method of makin will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-2347981