Flickerless Regeneration Rates for CRT Displays as a Function of Scan Order and Phosphor Persistence

Abstract

The effects of two variables on the regeneration rates required to prevent flicker on CRT displays were investigated in this computer-automated experiment. The two variables were the sequential order in which the display was scanned (e.g., horizontal, vertical, or pseudo-random scanning) and the persistence of the phosphor on the display. Twenty-one different scan orders and two phosphors (P-12 and P-38) were used. Results showed that flickerless regeneration rates depended principally upon phosphor persistence; scan order had only a minor influence. The main effect of random and pseudorandom scanning was to reduce the disturbing effects of display flicker when it did occur, rather than to reduce significantly the regeneration rate at which flicker did not occur.

Get full access to this article

View all access options for this article.

References

Adams Associates. Computer display review. Bedford, Mass.: 1967.

Brainard

R. C.

Mounts

F. W.

Prasada

Low-resolution TV: Subjective effects of frame repetition and picture replenishment. Bell Telephone System Technical Journal, 1967, 46, 261–271.

Brown

E. F.

Low-resolution TV: Subjective comparison of interlaced and non-interlaced pictures. Bell Telephone System Technical Journal, 1967, 46, 233–260.

Bryden

J. E.

Some notes on measuring performance of phosphors used in CRT displays. Proceedings of the 7th National Symposium of the Society for Information Display, 1966, 83–103.

Deutsch

Pseudo-random dot scan television systems. IEEE Transactions of Broadcast Group, 1965, BC-11, 11–21.

Deutsch

A continuous motion narrowband television system. CQ: The Radio Amateur's Journal, 1968, 4, 1–13. (a).

Deutsch

Narrowband television pictures for transmission via oceanographic sound waves. Ocean Engineering, 1968, 1, 9–16. (b).

Engstrom

E. W.

A study of television image characteristics. Proceedings of the I.R.E., 1935, 23, 295–309.

Dixon

W. J.

Mood

A. M.

A method for obtaining and analyzing sensitivity data. Journal of the American Statistical Association, 1948, 43, 109–126.

10.

Gould

J. D.

Visual factors in the design of computer-controlled CRT displays. Human Factors, 1968, 10, 359–376.

11.

JEDEC Electron Tube Council Publication No. 16A. New York: Joint Electronic Device Engineering Council, 1966.

12.

Kappauf

W. E.

An empirical sampling study of the up-and-down method using computer-generated series. University of Illinois Progress Report, No. 1, April, 1967.

13.

Pitbaldo

Lincoln

A. J.

Kaufman

Evaluation of narrow bandwidth TV displays. Proceedings of the 7th National Symposium of the Society for Information Display, 1966, 83–103.

14.

Resnick

Mitchell

R. T.

Gould

R. H.

Information Processing Quarterly Progress Report. Lincoln Labs, March 15, 1960, 56–58.

15.

Roehrig

W. C.

The influence of area on the critical flicker-fusion threshold. Journal of Psychology, 1959, 47, 317–330.

16.

Turnage

R. E.

The perception of flicker in cathode ray tube displays. Information Display, May-June 1966, 3, 38–52.