Anti-doming composition for a shadow-mask and processes for prep

Details Anti-doming composition for a shadow-mask and processes for prep Anti-doming composition for a shadow-mask and processes for prep

1997-10-21

2000-07-25

Ramsey, Kenneth J.

Electric lamp and discharge devices

Cathode ray tube

Shadow mask, support or shield

445 47, H01J 2907

Patent

active

060940034

ABSTRACT:
An anti-doming composition including a mixture of electron reflecting material such as bismuth oxide, and a zeolite, and a shadow-mask coated with the composition restrict temperature increase by preventing heat transfer, an anti-doming composition including lead and a ZnO, B.sub.2 O.sub.3, Bi.sub.2 O.sub.3 or a mixture thereof, and a shadow-mask coated with the composition protect mechanical expansion of a shadow-mask, and an anti-doming composition including ferroelectrics such as PZT, PT, PZ or PLZT, and a shadow-mask coated with the composition restrict temperature increase by changing the energy of electron beams into non-thermal energy. The shadow-mask of the present invention reduces about 30 to 50% of the anti-doming ratio and has a low production cost and easiness during processes.

REFERENCES:
patent: 4572843 (1986-02-01), Saito et al.
patent: 4983136 (1991-01-01), Okuda
patent: 5118982 (1992-06-01), Inoue et al.
patent: 5281470 (1994-01-01), Kobayashi et al.

Affiliated with

Also associated with

Rating

Anti-doming composition for a shadow-mask and processes for prep does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Anti-doming composition for a shadow-mask and processes for prep, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Anti-doming composition for a shadow-mask and processes for prep will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1338699