ASIA unversity:Item 310904400/2310
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    题名: An Ergonomic Study of Single Crawling Display on TV News
    作者: lin chia hui
    贡献者: Department of Media and Design
    关键词: TV News;crawling dynamic display;reading performance
    日期: 2007
    上传时间: 2009-11-06 05:08:04 (UTC+0)
    出版者: Asia University
    摘要: News is the most important medium to convey information in daily life.Ongoing advance in technologies provides convenient ossibilities for human to receive information on any topic they wish to know from TV. The crawling dynamic display had been widely used to provide nformation on TV, which usually displayed in a single line. There were many different kinds of design of various news channels, such as display position, display field length, and display speed. In order to
    investigate the proper condition for leading display on TV screens, his study first investigated the situation of crawling display on TV news channels, then selected important factors from the investigation results for examining the factors which affecting comprehension and visual fatigue on reading crawling dynamic information. A three-way factorial design experiment (4 x 4 x 4) using speed (85, 195, 275, and 325 cpm), position (top, bottom, left, and right side on screen), and field length (6,
    12, 18, 24 characters) as independent variables was conducted to test comprehension and visual fatigue of information reading on leading isplay. The results indicated that: (1) normally, the crawling displays were displayed on the left and the bottom of the TV screen. (2) The boldface font had the highest using frequency. (3) The crawling displays showed with bright texts and dark background. (4) The highest average was 278.13cpm; the lowest was 104.87cpm. (5) The longest display length was 69.5 cm, and the shortest was 21 cm.
    The experimental results indicated that: (1) the display speed for the best reading performance was between 85 ~ 195cpm; (2) the display position for the best reading performance was on the top side of TV screen; (3) the field length for the best reading performance was 18 characters one line; (4) the optimal combination on display speed, position, and field length for the best reading performance was 85 cpm, top side of TV screen, and 18 characters one line. These results could be used as a reference for websites and TV screen designers to identify appropriate levels of speed, position, and field length.
    显示于类别:[數位媒體設計學系] 博碩士論文

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