Accession Number:

ADA063505

Title:

Information Transfer from Computer-Generated Dot-Matrix Displays.

Descriptive Note:

Final rept. 15 Sep 74-31 Aug 78,

Corporate Author:

VIRGINIA POLYTECHNIC INST AND STATE UNIV BLACKSBURG HUMAN FACTORS LAB

Personal Author(s):

Report Date:

1978-10-22

Pagination or Media Count:

293.0

Abstract:

This report summarizes a research program which has investigated the effects of numerous design parameters of alphanumeric dot-matrix displays upon operator performance. Among the parameters investigated experimentally are dot size, dot shape, dot contrast or modulation, dot spacing, matrix size, character size, word context, ambient illuminance, character dot luminance, and character font. Operator performance in reading and search tasks was predicted by a linear regression model and subsequently cross-validated by additional experiments. Evaluations of several specific flat panel displays were made, with operator performance predicted acceptably from the previously derived regression model of display quality. Optimal capital alphanumeric fonts were determined for 5 x 7, 7 x 9, and 9 x 11 matrices. Author

Subject Categories:

  • Human Factors Engineering and Man Machine Systems

Distribution Statement:

APPROVED FOR PUBLIC RELEASE