Light-emitting substrate, image display apparatus, and information display and reproduction apparatus using image display apparatus
AssigneeCanon Kabushiki Kaisha
InventorTomoya Onishi
Life of this patent
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Abstract
To suppress discharge around an anode electrode. Provided is a light-emitting substrate, including a light-emitting member for emitting light by irradiation with an electron, a first electroconductive film stacked on the light-emitting member, a second electroconductive film which is distant from an outer periphery of the first electroconductive film and surrounds the outer periphery of the first electroconductive film, and a dielectric film for covering an end portion of the second electroconductive film which is opposed to the outer periphery of the first electroconductive film.
Claims26
A light-emitting substrate, comprising:
- a light-emitting member for emitting light by irradiation with an electron;
- a first electroconductive film stacked on the light-emitting member;
- a second electroconductive film which is distant from an outer periphery of the first electroconductive film and surrounds the outer periphery of the first electroconductive film;
- and
- a dielectric film for covering an end portion of the second electroconductive film which is opposed to the outer periphery of the first electroconductive film.
An image display apparatus, comprising:
- a face plate including a light-emitting member for emitting light by irradiation with an electron, a first electroconductive film which is stacked on the light-emitting member and has substantially a quadrangular outer periphery, and a second electroconductive film which is opposed to four sides of the quadrangular outer periphery and located at a distance from the quadrangular outer periphery of the first electroconductive film;
- a rear plate on which an electron-emitting device is located;
- a power source for applying, to the second electroconductive film, a potential lower than a potential applied to the first electroconductive film;
- and
- a dielectric film for covering an end of the second electroconductive film which is opposed to each of the four sides of the quadrangular outer periphery of the first electroconductive film.
An image display apparatus, comprising:
- a face plate including a light-emitting member for emitting light by irradiation with an electron, a first electroconductive film stacked on the light-emitting member, and a second electroconductive film which is distant from an outer periphery of the first electroconductive film;
- a rear plate on which an electron-emitting device is located;
- a power source for applying, to the second electroconductive film, a potential lower than a potential applied to the first electroconductive film;
- and
- a dielectric film for covering an end of the second electroconductive film which is opposed to the outer periphery of the first electroconductive film,
- wherein the outer periphery of the first electroconductive film is surrounded by an equipotential line which is produced based on a potential applied from the power source and passes through the second electroconductive film on the face plate.
Dependencies are inferred from the claim text.