Claims
- 1. An electronic device comprising:
- an array of field emission cathodes providing an electron emitting surface;
- a display panel having a face including an anode opposing said surface; and
- a plurality of prebaked spacers of uniform height of an organic polymer and substantially free of volatile material, said spacers extending between said surface of said face;
- said electron emitting surface and said display panel being sandwiched together with said spacers defining a space therebetween, said space being subjected to a vacuum during emission of electrons from said field emitting surface to said display panel.
- 2. The electronic device of claim 1 wherein said organic polymer is a polyimide.
- 3. The electronic device of claim 2 wherein the precursor of said polyimide is a polyamic ester.
- 4. The electronic device of claim 1 wherein said field emission cathodes provide a plurality of electron generating sites forming a matrix of the same, said display panel is transparent at said opposing face, and said face includes phosphor coatings forming pixels, whereby said device is a matrix addressable, flat panel display.
- 5. The electronic device of claim 4 wherein said spacers are located between pixels of said matrix addressable, flat panel display.
Parent Case Info
This is a division, of application Ser. No. 215,603 filed July 6, 1988 now U.S. Pat. No. 4,923,421.
US Referenced Citations (10)
Divisions (1)
|
Number |
Date |
Country |
Parent |
215603 |
Jul 1988 |
|