Legibility of seven segment numeric led displays. Comparisons of two fonts at various distances

Jon Gunderson, George Gruetzmacher, Naomi Swanson

Research output: Contribution to journalConference articlepeer-review

Abstract

The legibility of seven segment numeric displays was investigated for two different numeric LED fonts at five reading distances. An alternative font as proposed by Van Nes and Bouma (1980) was compared to the font used currently by many commercial products. Subjects performed a digit cancelling task as single digits were presented on the seven segment display at various reading distances. The error rate and response times for five reading distances from 8 to 25 feet were evaluated for a .3 × .188 inch LED display (VAS of 0.179 to 0.0573 degrees) The font proposed by Van Nes and Bouma was found to reduce errors by almost 50 percent at all but the longest viewing distance. This design information is valuable especially when designing medical equipment for critical care and operating room environments.

Original languageEnglish (US)
Pages (from-to)491-495
Number of pages5
JournalProceedings of the Human Factors Society
Volume1
DOIs
StatePublished - 1991
Externally publishedYes
EventProceedings of the Human Factors Society 35th Annual Meeting Part 1 (of 2) - San Francisco, CA, USA
Duration: Sep 2 1991Sep 6 1991

ASJC Scopus subject areas

  • Engineering(all)

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