微型投影顯示之內容形式與投影距離對使用者偏好之影響

在微型投影裝置體積逐漸縮小的趨勢下，應用範圍從單機的市場擴散至可攜式行動裝置上，但是微型投影技術的研究大多僅限於手機，並無直接和投影內容與投影距離之相關研究探討，因此本研究目的欲瞭解微型投影機顯示之內容形式與投影距離對於使用者偏好是否有顯著影響。研究以三種投影畫面內容與六種投影距離為自變項，使用者偏好為依變項，比較在不同距離的情況下投射靜態人物、風景與動態影片對使用者偏好是否有影響，使用重複測量變異數中的單變量方法獲得實驗結果，並以實驗後提問收集偏好原因。研究結果顯示投影距離對使用者偏好具有顯著影響，投影畫面內容不具有顯著影響，但兩者之間具有顯著的交互作用。投影距離在1公尺時使用者偏好滿意度最高，因為受測者喜愛此時的畫面大小與亮度；交互作用顯示在1公尺時靜態風景的滿意度最好，而在2公尺時動態影片的滿意度最好，由此可知靜態圖像的畫面大小與亮度最合適的投影距離為1公尺，而受測者可接受較大的影片投影畫面。實驗後提問的結果也確認畫面的大小與亮度是受測者在使用微型投影裝置畫面偏好之主要因素。往後微型投影裝置的設計可根據不同的投影內容提供使用者確切的投影距離，相信本研究之成果能有助於產業更了解使用者的需求，使其技術之開發與應用更能符合市場的需求。

關鍵字

微型投影；視覺系統；使用者經驗

並列摘要

With the evolution of projection technology, micro-projectors have been rapid developed. Its applications range from conventional stand-alone sets to embedment in portable devices. However most of the research on micro projection technology has mainly been related to the applications with mobile phones but not to the design of user interfaces or user experience. Therefore, this study aims to understand whether content types and projection distances have significant impacts on user subjective preferences. There were three contents types and six projection distances as the independent variables, participants’ responses on their preferences as the dependent variable. A repeated-measures ANOVA was used to analyze the date. A brief question was also asked after the experiment to understand participants’ rationale behind their responses. Results showed that significant effects on user preferences were found from the different projection distances and from the interactions between the projection distances and the content types, but not from the different content types. Projection distance in one meter had the highest preference, due to its screen size and the level of brightness. For the interaction effects, user preferred static pictures to dynamic video in one-meter projection distance. However, this preference was reversed in the distance of two meters. Results of the question after the experiment have confirmed that the sizes and levels of brightness primary factors to influence user preferences. It is believed that the findings of this study will help industry to better understand the needs of users, so that it can better meet the technology development and application market demand.

並列關鍵字

Micro-projection ； Vision System ； User Experience

參考文獻

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國際替代計量

微型投影顯示之內容形式與投影距離對使用者偏好之影響

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