| 摘要 |
<p>PROBLEM TO BE SOLVED: To keep high vacuum by a getter of a large area formed by providing a gas adsorbing means in an envelope coated so as to cover a conductor layer fixing potential provided on an insulating layer covering partly a wiring group. SOLUTION: A getter agent is set up in a getter agent container 9 in an envelope formed by a substrate 1, faceplate 7 and an outer frame 8, and by a getter agent container fixing jig 10, scattering is an unnecessary direction of the getter agent is interrupted. Coating of a getter by flash is performed on an insulating layer 13 provided partly on a wiring 5. The coated getter 11 is formed in a region existing not an electron emitting element 3a but the wiring 5, so as to obtain a large area. By a getter coating region thus formed, residual gas in the vacuum envelope after sealing an exhaust pipe is captured. Further, an electrode 15 is provided between the insulating layer 13 and the getter 11, to be connected to a fixed potential source, so as to prevent a leak and cross talk a signal from being generated between the wirings.</p> |
