Cathode panel for a cold cathode field emission display and cold cathode field emission display, and method of producing cathode panel for a cold cathode field emission display
AssigneeSony Corporation
InventorsYukihiro Kamide, Shinji Kubota, Hiroshi Sata, Kazuo Kikuchi
Life of this patent
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Abstract
A cathode panel for a cold cathode field emission display, comprising; (a) a plurality of main wirings, (b) a plurality of branch wirings extending from each main wiring, and (c) cold cathode electron emitting portions connected to the branch wirings, wherein a branch wiring connecting a cold cathode electron emitting portion defective in operation and a main wiring is cut off.
Claims8
A cathode panel for a cold cathode field emission display, comprising;
- (a) an effective region constituted of a plurality of cold cathode electron emitting portions arranged in a two-dimensional matrix form, and
- (b) an ineffective region constituted of a plurality of cold cathode electron emitting portions arranged in a circumferential portion of the effective region and formed in a two-dimensional matrix form,
- wherein the cold cathode electron emitting portions constituting the effective region are connected to a power source for actuating the cold cathode electron emitting portions, and
- the cold cathode electron emitting portions constituting the ineffective region are not connected to said power source.
A cathode panel for a cold cathode field emission display, comprising a plurality of cold cathode electron emitting portion groups arranged side by side,
- wherein each cold cathode electron emitting portion group has N columns of cold cathode electron emitting portions side by side, N being a natural number of 2 or more, each column having a plurality of the cold cathode electron emitting portions arranged one-dimensionally,
- a constant number of column or columns are selected from said columns in each cold cathode electron emitting portion group, the constant number being (N−1) or less,
- the selected column or columns of the cold cathode electron emitting portions are connected to a power source for actuating the cold cathode electron emitting portions, and
- non-selected column or columns of the cold cathode electron emitting portions are not connected to said power source.
A cold cathode field emission display comprising a plurality of pixels, each pixel being constituted of a cold cathode electron emitting portion formed in a cathode panel and an anode electrode and a fluorescence layer formed in an anode panel and opposed to the cold cathode electron emitting portion,
- the cathode panel comprising;
- (a) an effective region constituted of a plurality of the cold cathode electron emitting portions arranged in a two-dimensional matrix form, and
- (b) an ineffective region constituted of a plurality of the cold cathode electron emitting portions arranged in a circumferential portion of the effective region and formed in a two-dimensional matrix form,
- wherein the cold cathode electron emitting portions constituting the effective region are connected to a power source for actuating the cold cathode electron emitting portions, and
- the cold cathode electron emitting portions constituting the ineffective region are not connected to said power source.
A cold cathode field emission display comprising a plurality of pixels, each pixel being constituted of a cold cathode electron emitting portion formed in a cathode panel and an anode electrode and a fluorescence layer formed in an anode panel and opposed to the cold cathode electron emitting portion,
- the cathode panel comprising a plurality of cold cathode electron emitting portion groups arranged side by side,
- wherein each cold cathode electron emitting portion group has N columns of the cold cathode electron emitting portions side by side, N being a natural number of 2 or more, each column having a plurality of the cold cathode electron emitting portions arranged one-dimensionally,
- a constant number of column or columns are selected from said columns in each cold cathode electron emitting portion group, the constant number being (N−1) or less,
- the selected column or columns of the cold cathode electron emitting portions are connected to a power source for actuating the cold cathode electron emitting portions, and
- non-selected column or columns of the cold cathode electron emitting portions are not connected to said power source.
Dependencies are inferred from the claim text.