Shadow mask frame assembly for color cathode ray tube

Details Shadow mask frame assembly for color cathode ray tube Shadow mask frame assembly for color cathode ray tube

1998-06-24

2000-05-16

Day, Michael H.

Electric lamp and discharge devices

Cathode ray tube

Shadow mask, support or shield

313402, H01J 2907

Patent

active

060641460

ABSTRACT:
A shadow mask frame assembly for a color cathode ray tube including a plate shaped shadow mask (60) including electron beam passing holes (H) and having a curvature, and a frame (70) having a side wall (73), a flange (72) inwardly extending from the side wall (73), and a supporting portion (71) extending from the flange (72) as a step, wherein some peripheral edges (61) of the shadow mask (60) are attached to the supporting portion (71) and some peripheral edges (61) of the shadow mask (60) are not attached to the supporting portion (71) and slip on an upper surface of the supporting portion (71) during thermal expansion of the shadow mask (60). The present shadow mask frame assembly can be easily fabricated and assembled by eliminating the skirt portion, and can effectively compensate for thermal expansion of the mask plate.

REFERENCES:
patent: 4056755 (1977-11-01), Sohn
patent: 4599533 (1986-07-01), Ragland, Jr.
patent: 4712041 (1987-12-01), Greiner et al.
patent: 5416380 (1995-05-01), Horiuchi
patent: 5929558 (1999-07-01), Lee

Affiliated with

Also associated with

Rating

Shadow mask frame assembly for color cathode ray tube does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Shadow mask frame assembly for color cathode ray tube, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Shadow mask frame assembly for color cathode ray tube will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-260994