Display device using shadowmask CRT

Details Display device using shadowmask CRT Display device using shadowmask CRT

1989-02-24

1989-12-12

Blum, Theodore M.

Electric lamp and discharge devices: systems

Cathode ray tube circuits

Cathode-ray deflections circuits

H01J 2956

Patent

active

048870102

ABSTRACT:
A display device which comprise a color cathode ray tube including a finely perforated shadow mask having a multiple of minute apertures defined therein in a predetermined pattern in a vertical direction relates to scanning lines depicted by electron beams, a horizontal deflecting unit for causing the scanning lines to sweep in a horizontal direction, a vertical deflecting unit for displacing the scanning lines of the electron beams in a vertical direction to permit the scanning lines to assume equally spaced relationship with each other, and a scanning line position adjusting unit for displacing every other scanning line from the total number of the scanning lines in the vertical direction in a quantity required to minimize the appearance of Moire pattern.

REFERENCES:
patent: 4037133 (1977-07-01), Sennik
"Moire Considerations in Shadow-Mask Picture Tubes" by James P. Wittke, David Sarnoff Research Center, Princeton, N.J., SID 87 Digest, pp. 347-350.

Affiliated with

Also associated with

Rating

Display device using shadowmask CRT does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Display device using shadowmask CRT, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Display device using shadowmask CRT will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-2123454