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US 5,851,133 AGranted
FED spacer fibers grown by laser drive CVD
AssigneeMicron Display Technology, Inc.
InventorJames J. Hofmann
Life of this patent
Estimating the term…
Abstract
Laser-assisted chemical vapor deposition is used to form spacers at desired locations in a field emission display. The spacers can be designed with different shapes to provide increased strength and also to be formed differently depending on the their location on the display.
Claims8
A process comprising the steps of:
- introducing a number of different gases into an evacuated chamber;
- directing energy with an energy source to a spot on a substrate to cause the gases to form a solid;
- moving the energy source relative to the substrate to form a spacer extending away from the substrate;
- and
- assembling together the substrate with the spacer and a parallel plate in a vacuum sealed package such that the spacer is perpendicular to the substrate and the parallel plate.
2 more elements
A process comprising the steps of:
- introducing one or more gases into an evacuated chamber;
- directing energy with an energy source to a spot on a transparent substrate;
- moving the energy source relative to the substrate to form a spacer extending away from the substrate;
- forming a phosphor coating on the substrate;
- assembling together the substrate with a cathode that has a plurality of electron emitters, the cathode being assembled so that the emitters emit electrons toward the substrate when excited to produce a visible image at the faceplate, the assembling step being performed so that the spacer contacts a portion of the cathode and the cathode and substrate are sealed together in a vacuum sealed package.
2 more elements
Dependencies are inferred from the claim text.