Back to results
US 2011/0019345 A1Published application
Image display apparatus
AssigneeCanon Kabushiki Kaisha
InventorsAkira Hayama, Kinya Kamiguchi
Life of this patent
Estimating the term…
Abstract
A spacer 4 has a protrusion 21 on the side where the spacer 4 contacts a rear plate 2 or face plate 1, and a buffer 20 is disposed between the spacer 4 and the plate on the side where the protrusion 21 is provided. The buffer 20 to be used has an appropriate elastic modulus.
Claims3
An image display apparatus, comprising:
- a rear plate having electron-emitting devices;
- a face plate having a light emitting member which emits light by irradiation of electrons emitted from the electron-emitting devices;
- a spacer disposed between the rear plate and face plate, and having a protrusion on the side facing the rear plate or face plate;
- and
- a buffer disposed between the rear plate or face plate and the protrusion, wherein
- the following Expression (1) is satisfied:
- F/S≦a≦(t/(0.6×L))×(F/S) (1)
- where L [m] denotes a height of the protrusion, t [m] denotes a thickness of the buffer in a position in contact with the outer periphery of the spacer, a [MPa] denotes an elastic modulus of the buffer, F [MPa·m2] denotes the total amount of force applied to a contact portion between the buffer and the spacer, and S [m2] denotes the total area of the contact portion.
5 more elements
Dependencies are inferred from the claim text.