Process for manufacturing color picture tube capable of minimizi

Details Process for manufacturing color picture tube capable of minimizi Process for manufacturing color picture tube capable of minimizi

1991-06-25

1992-10-20

Ramsey, Kenneth J.

Electric lamp or space discharge component or device manufacturi

Process

Generating gas or vapor within an envelope, or coating by...

445 41, 445 55, H01J 939

Patent

active

051565633

ABSTRACT:
A process for manufacturing a color picture tube capable of minimizing the thermal deformation of the shadow mask is disclosed. A getter is filled with a Ba material, a high or low vaporizing material having a different vaporizing temperature compared with that of the Ba material, and the getter is installed within the color picture tube. The getter is heated by a microwave heating device, so that the Ba material is vaporized so that the vacuum level of the color picture tube is raised. The high or low vaporizing material is vaporized and coated onto an aluminum film of a panel or on the surface of the shadow mask. This vaporizing material layer coated on the aluminum film or on the surface of the shadow mask absorbs the heat generated by the shadow mask, so that the thermal expansion and the thermal deformation of the shadow mask is inhibited, thereby improving the colorimetric purity of the phosphor screen and extending the life expectancy of the color picture tube.

REFERENCES:
patent: 3802757 (1974-04-01), Benda et al.
patent: 4203860 (1980-05-01), Ichise et al.
patent: 4416642 (1983-11-01), van Ormer
patent: 4481441 (1984-11-01), van Gils

Affiliated with

Also associated with

Rating

Process for manufacturing color picture tube capable of minimizi does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process for manufacturing color picture tube capable of minimizi, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process for manufacturing color picture tube capable of minimizi will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-189033