Electric lamp and discharge devices – Electrode and shield structures – Point source cathodes
Patent
1999-05-13
2000-07-11
Patel, Vip
Electric lamp and discharge devices
Electrode and shield structures
Point source cathodes
313309, 313351, 313495, 313497, 313107, H01J 1924
Patent
active
060877669
ABSTRACT:
Cathodoluminescent field emission display devices feature phosphor biasing, amplification material layers for secondary electron emissions, oxide secondary emission enhancement layers, and ion barrier layers of silicon nitride, to provide high-efficiency, high-brightness field emission displays with improved operating characteristics and durability. The amplification materials include copper-barium, copper-beryllium, gold-barium, gold-calcium, silver-magnesium and tungsten-barium-gold, and other high amplification factor materials fashioned to produce high-level secondary electron emissions within a field emission display device. For enhanced secondary electron emissions, an amplification material layer can be coated with a near mono-molecular film consisting essentially of an oxide of barium, beryllium, calcium, magnesium or strontium. Use of a high amplification factor film as a phosphor biasing electrode, and variability of the phosphor biasing potential to achieve brightness or gray scale control are further described in the disclosure.
REFERENCES:
patent: 2992349 (1961-07-01), Cusano
patent: 3560784 (1971-02-01), Steel
patent: 4381474 (1983-04-01), Cusano
patent: 4540914 (1985-09-01), Maple
patent: 4857161 (1989-08-01), Borel et al.
patent: 5229331 (1993-07-01), Doan et al.
patent: 5378963 (1995-01-01), Ikeda
patent: 5384509 (1995-01-01), Kane et al.
patent: 5438240 (1995-08-01), Cathey et al.
patent: 5461280 (1995-10-01), Kane
patent: 5473218 (1995-12-01), Moyer
patent: 5473219 (1995-12-01), Ikeda
patent: 5509839 (1996-04-01), Liu
patent: 5534749 (1996-07-01), Ohoshi et al.
patent: 5646479 (1997-07-01), Troxell
patent: 5656887 (1997-08-01), Voshell
patent: 5821685 (1998-10-01), Peterson
Dr. Jacques I. Pankove, "Electroluminescence", Spring-Verlag Berlin Heidelberg New York 1977, pp. 197-210.
Patel Vip
St. Clair Intellectual Property Consultants, Inc.
Williams Joseph
LandOfFree
Field emission display devices does not yet have a rating. At this time, there are no reviews or comments for this patent.
If you have personal experience with Field emission display devices, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Field emission display devices will most certainly appreciate the feedback.
Profile ID: LFUS-PAI-O-545066