High voltage type image display apparatus
AssigneeCanon Kabushiki Kaisha
InventorTomoya Onishi
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Abstract
An image display apparatus comprises an electrode showing an electric potential defined to be high and an electrode showing an electric potential defined to be lower than the high electric potential, the electrodes being arranged vis-à-vis, at least one of the electrodes having a part showing a thickness of not less than 2 μm and a part located closest to the other electrode and showing a surface roughness of not more than 0.5 μm. With this arrangement, the image display apparatus can effectively suppress an electric discharge from taking place between electrodes and occurrence of a problem of broken wire.
Claims16
An image display apparatus comprising an electrode showing an electric potential defined to be high and an electrode showing an electric potential defined to be lower than said high electric potential, said electrodes being arranged in opposition to each other on the same plane, at least one of said electrodes having a part showing a thickness of not less than 2 μm and a part located closest to the other electrode and showing a surface roughness of not more than 0.5 μm.
An image display apparatus comprising an electrode showing an electric potential defined to be high and an electrode showing an electric potential defined to be lower than said high electric potential, said electrodes being arranged vis-à-vis, at least one of said electrodes showing a surface profile in a part thereof located closest to said other electrode smoother than the surface profile in the remaining part, said remaining part of said one of the electrodes having an area showing a thickness greater than the thickness of the part located closest to said other electrode.
An image display apparatus comprising a substrate carrying on a same surface thereof an electrode showing an electric potential defined to be high, an electrode showing an electric potential defined to be lower than said high electric potential and a high resistance film arranged to bridge the electrodes, at least one of said electrodes having a portion being closest to the other of said electrodes, the portion being located on the surface of said substrate, and the portion being covered with said high resistance film, the thickness A of said part of said one of the electrodes covered by said high resistance film and the thickness B of said high resistance film satisfying the requirement expressed by the formula of B<A<15B.
Dependencies are inferred from the claim text.