Back to results
US 4,400,647 AGranted
Cathode structure for cathode ray tubes and method
AssigneeNorth American Philips Consumer Electronics Corp.
InventorGeorge Palty
Life of this patent
Estimating the term…
Abstract
Cathode structures for cathode ray tubes are multilayer structures wherein the multilayer structures are formed from a laminate of at least two self-supporting layers of particles of emissive material dispersed in a fugitive organic binder matrix.
Claims10
A cathode structure for cathode ray tubes comprising:
- (a) a supporting substrate of a nickel alloy;
- and
- (b) a multilayer electron emissive structure adherent to the substrate, characterized in that the electron emissive structure is formed from a laminate of at least two self-supporting layers, each layer comprised of particles of an electron emissive material dispersed in a fugitive organic binder matrix.
A method for producing a cathode structure for cathode ray tubes, the method comprising:
- (a) depositing a drop of solvent onto a supporting substrate of a Ni alloy;
- (b) forming a laminated button of at least two self-supporting layers, each layer comprised of particles of electron emissive material dispersed in a fugitive organic binder matrix;
- (c) floating the button on the drop;
- and
- (d) selectively evaporating the solvent to center and adhere the button to the substrate.
2 more elements
Dependencies are inferred from the claim text.