| Abstract: | 在電腦顯示螢幕前透過多媒體進行訊息的瀏覽工作已愈來愈頻繁，如何能更快速、清楚、正確而有效的獲知訊息意義，使瀏覽績效能提高，視覺疲勞因此降低，是非常重要的。本研究主旨在探討VDT作業時，螢幕色彩組合、每列訊息移動速度與每列訊息負荷量對多媒體動態訊息顯示設計之瀏覽績效及視覺疲勞的影響，並建立定量模式。研究中，瀏覽績效以答題正確數來評估；視覺疲勞則以實驗後與實驗前閃光融合閾值（CFF）之差值來衡量；所採用之實驗設計方法為三因子完全隨機化要因設計。研究結果顯示每列訊息移動速度與每列訊息負荷量之交互作用對瀏覽績效或視覺疲勞有顯著影響，然而螢幕色彩組合的影響並不顯著；就瀏覽績效而言，最佳之因子水準組合依序為delay(50)（即每列訊息移動速度為每秒約0.727公分）/每列20個字、delay(0)（即每列訊息移動速度為靜態方式）/每列15個字、以及delay(50)/每列15個字的水準組合，然三者並無顯著性差異，最差之因子水準組合則為delay(100)（即每列訊息移動速度為每秒約0.386公分）/每列10個字的組合；就視覺疲勞而言，最佳（視覺不疲勞）因子水準組合依序為delay(50)/每列10個字、delay(0)/每列15個字、以及delay(100)/每列10個字的水準組合，三者亦無顯著性差異，最差（視覺最疲勞）之因子水準組合則為delay(50)/每列15個字的組合；最後，由各量測時間點所搜集之數據，建立瀏覽績效與視覺疲勞之迴歸模式，藉以提供預測之參考。
It is more and more frequently to accept the message from the computer monitor by multimedia. It’s very important for people about getting information and increasing the browsing performance more quickly, clearly, and efficiently in order to decrease the visual fatigue. The main purpose of this study is to understand the effects of screen color combination, message-moving speed per row and message load per row on multimedia dynamic information display. Factorial with completely randomized design is used to collect the experimental data. The design criteria via browsing performance and visual fatigue will be recommended. The results show that the effect of interaction of message-moving speed per row and message load per row is statistically significantly on both browsing performance and visual fatigue, but screen color combination is not significant factor. According to browsing performance, the best combination of factor levels, in alphabetical order, is delay(50) (that is, message-moving speed per row is 0.727 cm per second) and 20 words per row, delay(0)(that is, message-moving speed per row is static) and 15 words per row, and delay(50) and 15 words per row, however, three of them are different non-significantly. Meanwhile, the worst combination of factor levels is delay(100) (that is, message-moving speed per row is 0.386 cm per second) and 10 words per row. In addition, the best combination of factor levels of visual fatigue, in alphabetical order, is delay(50) and 10 words per row, delay(0) and 15 words per row, and delay(100) and 10 words per row. Unexpectedly, they are also not significantly different. The worst combination of factor levels is delay(50) and 15 words per row. Finally, regression models for browsing performance and visual fatigue based on the time were constructed for providing more predictable reference. |
