Effects of color CRT misconvergence and font type on text readability and subjective preference

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dc.contributor.authorSebok, Angelia L.en
dc.contributor.departmentIndustrial and Systems Engineeringen
dc.date.accessioned2014-03-14T20:47:18Zen
dc.date.adate2009-10-31en
dc.date.available2014-03-14T20:47:18Zen
dc.date.issued1991en
dc.date.rdate2009-10-31en
dc.date.sdate2009-10-31en
dc.description.abstractOur information-oriented society relies on the widespread use of color CRT displays. Misconvergence of the primary colors of a shadow-mask CRT is a problem with this technology that deserves human factors engineering consideration. The purpose of this research was as follows: (1) to determine the effects of misconvergence type and amount and font type on reading performance (time required and errors made), (2) to determine the effects of misconvergence type and amount and font type on subjective image quality ratings, (3) to determine the role of luminance and chrominance contrasts in predicting performance or subjective ratings. Ten participants performed a simple reading task and rated the image quality of the text they had just seen using a nine-point scale. The text was presented on a shadow-mask CRT. Different misconvergence types and amounts and different font types were presented. Neither font type, misconvergence type, nor misconvergence amount affected the time required to perform the reading task. Only misconvergence type affected the rate at which errors occurred, with blue misconvergence of a white character resulting in the most errors and cyan misconvergence resulting in the fewest errors. Font type, misconvergence type, misconvergence amount, and the misconvergence type and amount interaction all affected subjective ratings, with 1 to 2 arcmin being the largest acceptable misconvergence amounts. The Yu'v’ chrominance contrast between the stationary misconvergence fringe and the background was positively correlated with subjective preference ratings.en
dc.description.degreeMaster of Scienceen
dc.format.extentvii, 100 leavesen
dc.format.mediumBTDen
dc.format.mimetypeapplication/pdfen
dc.identifier.otheretd-10312009-020039en
dc.identifier.sourceurlhttp://scholar.lib.vt.edu/theses/available/etd-10312009-020039/en
dc.identifier.urihttp://hdl.handle.net/10919/35552en
dc.language.isoenen
dc.publisherVirginia Techen
dc.relation.haspartLD5655.V855_1991.S436.pdfen
dc.relation.isformatofOCLC# 24090111en
dc.rightsIn Copyrighten
dc.rights.urihttp://rightsstatements.org/vocab/InC/1.0/en
dc.subject.lccLD5655.V855 1991.S436en
dc.subject.lcshCathode ray tubes -- Researchen
dc.titleEffects of color CRT misconvergence and font type on text readability and subjective preferenceen
dc.typeThesisen
dc.type.dcmitypeTexten
thesis.degree.disciplineIndustrial and Systems Engineeringen
thesis.degree.grantorVirginia Polytechnic Institute and State Universityen
thesis.degree.levelmastersen
thesis.degree.nameMaster of Scienceen

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