Electric lamp and discharge devices – With luminescent solid or liquid material – Vacuum-type tube
Reexamination Certificate
2000-09-07
2003-06-10
Patel, Ashok (Department: 2879)
Electric lamp and discharge devices
With luminescent solid or liquid material
Vacuum-type tube
C313S497000, C313S496000, C313S581000
Reexamination Certificate
active
06577057
ABSTRACT:
FIELD OF THE INVENTION
The present invention relates, in general, to emissive devices and, more particularly, to displays such as field emissive displays, electroluminescent displays, liquid crystal displays, and plasma displays and methods of manufacturing field emissive devices used in the displays.
BACKGROUND OF THE INVENTION
Field emissive displays are well known in the art. A field emissive display includes an anode plate and a cathode plate that define a thin envelope. Typically, the anode plate and the cathode plate are thin enough to necessitate some form of spacer structure to prevent implosion of the device due to the pressure differential between the internal vacuum and external atmosphere. The spacers are disposed within the active area of the device, which includes the electron emitters and phosphors.
Currently, the anode and cathode plates are made from glass substrates having a maximum processing temperature of 600 degrees Celsius. The temperature limitation does not pose a severe limitation on the operation of the displays because they are typically operated at temperatures below 200 degrees Celsius. However, they do limit the types of anode and cathode structures that can be manufactured on the glass substrates to those manufactured at temperatures below 600 degrees Celsius.
Accordingly, it would be advantageous to have a field emissive display and method for manufacturing the field emissive display that mitigates the constraints introduced by high temperature manufacturing processes.
REFERENCES:
patent: 5397957 (1995-03-01), Zimmerman
patent: 5465024 (1995-11-01), Kane
patent: 5541473 (1996-07-01), Duboc, Jr. et al.
patent: 5589731 (1996-12-01), Fahlen et al.
patent: 5597518 (1997-01-01), Lovoi
patent: 5644327 (1997-07-01), Onyskevych et al.
patent: 5667418 (1997-09-01), Fahlen et al.
patent: 5672083 (1997-09-01), Curtin et al.
patent: 5674351 (1997-10-01), Lovoi
patent: 5686790 (1997-11-01), Curtin et al.
patent: 5727977 (1998-03-01), Maracas et al.
patent: 5798604 (1998-08-01), Duboc, Jr. et al.
patent: 5872420 (1999-02-01), Itih et al.
patent: 5880705 (1999-03-01), Onyskevych et al.
patent: 5949185 (1999-09-01), Janning
patent: 5962969 (1999-10-01), Watkins
Dworsky Lawrence N.
Howard Emmett M.
Yamamoto Joyce K.
Koch William E.
Motorola Inc.
Patel Ashok
Wills Kevin D.
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