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US 7,956,523 B2Granted
Image display apparatus having spacer with carbon film
AssigneeCanon Kabushiki Kaisha
InventorsKazuo Kuroda, Nobuhiro Ito
Life of this patent
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Abstract
A carbon film is coated over the surface of a spacer. The carbon film has the following three features when the binding state of carbon is analyzed by X-ray photoelectron spectroscopy: (a) an integral area of a region of 284.5 eV or below is 27% or less of an integral area attributed to carbon, (b) an integral area of a region of 286.0 eV-287.0 eV is 18% or less thereof, and (c) an integral area of a region of 287.0 eV or above is 9% or more thereof.
Claims3
An image display apparatus including:
- a rear plate having electron-emitting devices thereon;
- a face plate having associated image-forming members configured to emit light upon being irradiated by electrons emitted from the electron-emitting devices;
- and
- at least one spacer positioned between the rear plate and the face plate,
- wherein the spacer has a carbon film on a surface thereof and the carbon film has oxygen-carbon bonds and has characteristics such that, in a spectrum obtained by X-ray photoelectron spectroscopy, an integral area of a region of 284.5 eV or below is 27% or less of an integral area attributed to carbon, an integral area of a region of 286.0 eV-287.0 eV is 18% or less thereof, and an integral area of a region of 287.0 eV or above is 9% or more thereof.
2 more elements
An image display apparatus including:
- a rear plate having electron-emitting devices thereon;
- a face plate having associated image-forming members configured to emit light upon being irradiated by electrons emitted from the electron-emitting devices;
- and
- at least one spacer positioned between the rear plate and the face plate,
- wherein the spacer has a carbon film on a surface thereof and the carbon film has sp2 bonds, sp3 bonds and oxygen-carbon bonds and has characteristics such that, in a spectrum obtained by X-ray photoelectron spectroscopy, an integral area of a region of 284.5 eV or below is 27% or less of an integral area attributed to carbon, an integral area of a region of 286.0 eV-287.0 eV is 18% or less thereof, and an integral area of a region of 287.0 eV or above is 9% or more thereof.
2 more elements
Dependencies are inferred from the claim text.