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US 6,629,869 B1Granted
Method of making flat panel displays having diamond thin film cathode
AssigneeSI Diamond Technology, Inc.
InventorsNalin Kumar, Chenggang Xie
Life of this patent
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Abstract
A field emission cathode is provided which includes a substrate and a conductive layer desposed adjacent the substrate. An electrically resistive pillar is disposed adjacent the conductive layer, the resistive pillar having a substantially flat surface spaced from and substantially parallel to the substrate. A layer of diamond is disposed adjacent the surface of the resistive pillar.
Claims5
A method of making a field emission cathode, comprising the steps of:
- depositing a layer of conductive material over a first substrate;
- depositing an electrically resistive pillar over said layer of conductive material, said electrically resistive pillar having a substantially flat surface spaced from and substantially parallel to said first substrate;
- depositing a layer of cathode material over said surface of said electrically resistive pillar, said layer of cathode material having a substantially flat exposed surface spaced from and substantially parallel to said first substrate;
- constructing a plurality of field emission cathodes over said layer of conductive material, said field emission cathodes having interstices therebetween to produce thereby a cathode assembly;
- depositing a spacer material in said interstices;
- depositing an indium tin oxide layer over a second substrate;
- depositing a phosphor film layer over said indium tin oxide layer to produce thereby an anode assembly;
- and
- joining said cathode assembly to said anode assembly, said spacer material thereby contacting said phosphor film layer.
6 more elements
A method of making a field emission cathode, comprising the steps of:
- depositing a layer of conductive material over a substrate;
- depositing an electrically resistive pillar over said layer of conductive material, said electrically resistive pillar having a substantially flat surface spaced from and substantially parallel to said substrate;
- depositing a layer of cathode material over said surface of said electrically resistive pillar, said layer of cathode material having a substantially flat exposed surface spaced from and substantially parallel to said substrate;
- constructing a plurality of field emission cathodes over said layer of conductive material, said field emission cathodes having interstices therebetween to produce thereby a cathode assembly;
- and
- depositing a spacer material in said interstices, wherein said spacer material is fibrous.
3 more elements
Dependencies are inferred from the claim text.