Flat panel display apparatus and a method of manufacturing thereof
AssigneeSony Corporation
InventorMorikazu Konishi
Life of this patent
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Abstract
In a flat panel display using a field emission type cathode array, a flat fluorescent screen is arranged between a cathode array formed on a flat substrate and a screen comprising a glass plate having a convex curved shape in parallel with the substrate. A vacuum is present in a space between the fluorescent screen and the cathode array and the space between the fluorescent screen and the substrate.
Claims3
In a flat panel display apparatus having a cathode array formed on a flat substrate, said cathode array comprising thousands of individual cathode tips on the substrate which tips project through apertures in an insulating layer on the substrate, a gate electrode being formed on a surface of the insulating layer, and a fluorescent screen comprising a fluorescent material layer on a glass plate being arranged opposite the cathode array with the fluorescent layer facing the cathode array, the improvement comprising:
- a spherical glass plate screen which is formed by a convex glass plate having spherical inner and outer surfaces, the fluorescent screen being positioned between the spherical glass plate screen and cathode array;
- said fluorescent screen being flat;
- and
- a space between the flat fluorescent screen and the spherical glass plate screen and a space between the fluorescent screen and the substrate comprising a vacuum.
Dependencies are inferred from the claim text.