Back to results
US 6,475,050 B1Granted
Manufacturing method of image-forming apparatus
AssigneeCanon Kabushiki Kaisha
InventorsSatoshi Mogi, Keisuke Yamamoto, Tamaki Kobayashi
Life of this patent
Estimating the term…
Loading patent…
Loading patent…
AssigneeCanon Kabushiki Kaisha
InventorsSatoshi Mogi, Keisuke Yamamoto, Tamaki Kobayashi
Estimating the term…
When high luminance is obtained by increasing an anode voltage in an image-forming apparatus constructed by anode and cathode substrates, a surface discharge (flash over) is generated between anode electrodes at a generating time of an abnormal discharge and an anode is broken. Therefore, as shown in FIG. 3B, the electric potential of an anode electrode on an anode substrate (51) is set to a uniform electric potential V1 by a first power source (53). Thereafter, the first power source (53) is separated from the anode electrode. Subsequently, the electric potential of one of the anode electrodes arranged in proximity to each other through an insulating face is set to an electric potential V2 by a second power sourced (54) to apply a voltage to a cut-in portion (52) (see FIG. 3C). Thus, a voltage Vc equal to or greater than an electric potential difference Ve generated at the generating time of the abnormal discharge is applied to the cut-in portion (52). Thus, the generation of a surface discharge (flash over) in the anode substrate can be prevented at the generating time of the abnormal discharge.
A manufacturing method of an image-forming apparatus, the image-forming apparatus having a cathode substrate on which an electron-emitting device is disposed, and an anode substrate on which an anode electrode is disposed, with a space between the anode substrate and the cathode substrate being held in a pressure-reduced state, said method comprising:
A manufacturing method of an image-forming apparatus, the image-forming apparatus having a cathode substrate on which an electron-emitting device is disposed, and an anode substrate on which an anode electrode is disposed, with a space between the anode substrate and the cathode substrate being held in a pressure-reduced state, said method comprising:
A manufacturing method of an image-forming apparatus, the image-forming apparatus having a cathode substrate on which an electron-emitting device is disposed, and an anode substrate on which an anode electrode is disposed, with a space between the anode substrate and the cathode substrate being held in a pressure-reduced state, said method comprising:
Dependencies are inferred from the claim text.