Image-forming apparatus
AssigneeCannon Kabushiki Kaisha
InventorShinya Koyama
Life of this patent
Estimating the term…
Abstract
An image-forming apparatus with good yield and high reliability is provided by devising and improving the shape of a supporting member. Therefore, a flat type image-forming apparatus has at least a rear plate, a face plate arranged oppositely to the rear plate, and a supporting member arranged between the rear plate and the face plate and holding the distance between the rear plate and the face plate in an outer circumferential edge portion. In this flat type image-forming apparatus, the shape of a nook portion of the supporting member is set to an arc shape on the inner or outer side of a container.
Claims11
An image-forming apparatus including an airtight container, comprising:
- a rear plate arranging plural electron-emitting devices therein;
- a face plate arranged oppositely to said rear plate and having an image forming member;
- and
- a supporting member arranged between said rear plate and said face plate, for prescribing the distance between said face and rear plates, the interior of which being held in a pressure reducing state,
- wherein said supporting member has four nook portions and shapes of the four nook portions have curvature on an inner or outer side of said container.
An image-forming apparatus including an airtight container, comprising:
- a rear plate arranging plural electron-emitting devices therein;
- a face plate arranged oppositely to said rear plate and having an image forming member;
- and
- a supporting member arranged between said rear plate and said face plate, for prescribing the distance between said face and rear plates, the interior of which being held in a pressure reducing state,
- wherein said supporting member has four nook portions and shapes of the four nook portions have curvature on inner and outer sides of said container.
Dependencies are inferred from the claim text.