Effects of Video Display Terminal Resolutions to the Legibility of Text on a Web Page

Abstract

Higher Video Display Terminal (VDT) resolutions have been proven to provide better quality in improving image quality displayed. The higher the resolution means more pixels per-inch-square available to display an image. This increase, however, may not be to the fonts used on web pages for improved legibility. Legibility of web text has been proved essential to ensure the quality of a web page. Support by the evidence from the previous research experiment results; low level of web text legibility can cause various visual related problems and usability of a web page. This research will focus on finding possible improvement effects on VDT resolution that might need to be considered in designing the web text. In this research 6 font types and two VDT resolutions for low and high have been selected. Approximately 200 subjects were randomly selected for this experiment. The selected subjects were divided into two groups for low and high resolution. Selected subjects performed legibility test and subjective preference test experiments on 6 selected type of fonts. Overall findings indicate that there is an improvement but no significant difference between the two VDT resolutions.Keywords:Legibility; Web text; Video Display Terminal; Fonts; Resolutions. INTRODUCTIONOne of the segments usually found on a webpage is the main content. The main content usually contains a series of text that will be the main focus of the user visits the web page. Backed by previous researches that are done by (Duckett, 2002) on readers reading strategy and (Nielsen and Pernice, 2010) on their eye tracking studies. Users actually scan web pages for relevant content related to the information they are looking for and not the whole content.On separate studies did by (Nielsen, 2008), on average, users actually only read about 20% of the whole text.Based on this evidence of how user's reading behaviour and how little actually user read the web text, the quality of a web text is crucial and needs to be taken care seriously. There are two main factors influencing the quality of web text; the quality of information presented (the content), and the quality of presentations. On the quality of presentation, one of the main factors is the legibility of the web text. Legibility is defined as "the quality of being clear enough to read" from the Oxford Dictionaries.On web text design, besides the colour combination used on the web text and the background, based on previous research, certain type and size of fonts does have a significant advantage in terms of legibility performance.This research however will explore even further, by studying the effects or the improvement on web text legibility that might improve when using much higher VDT resolution setting. The higher the VDT resolution the more density the pixel is. These higher pixel densities have proved to increase the quality of an image displayed but unproven that it might also increase the legibility of web text. Due to this unanswered question, this research will first explored the research...

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