Screen Luminance Contrast, Subtitle Type, and Viewing Angle on Viewing Distance of Liquid Crystal Display High-Definition Television

螢幕亮度對比、字幕類型與觀看角度對高清晰度液晶電視之偏好視距的影響

李德松(Der-Song Lee)

《人因工程學刊》 14卷2期 (2012/09) Pp. 127-138

https://doi.org/10.6273/JES.2012.14(2).07

摘要

本研究主旨在探討螢幕亮度對比、字幕類型及觀看角度，對高清晰度液晶電視（HDTV）之偏好視距的影響。實驗結果顯示，平均偏好視距為3167mm，大約為電視螢幕寬度的4倍。螢幕亮度對比對偏好視距的影響顯著，偏好視距隨螢幕亮度對比由刻度10增至刻度30而增加，但由刻度30至刻度90有些微下降的趨勢。字幕類型對偏好視距的影響不顯著。觀看角度對偏好視距的影響顯著，觀看角度愈偏離正面時，偏好視距似乎愈小。

關鍵字

高清晰度液晶電視 ； 偏好視距 ； 螢幕亮度對比 ； 字幕類型 ； 觀看角度

並列摘要

This study explored the effect of screen luminance contrast, subtitle type, and viewing angle on preferred viewing distance for liquid crystal display high-definition television (LCD-HDTV). The results showed the mean preferred viewing distance was 3167 mm, about 4 times of television width. Preferred viewing distance increased as the scale of screen luminance contrast went upward from scale 10 to scale 30, remained stable from scale 30 to scale 60, then decreased from scale 60 to scale 90. Subtitle type did not have significant effect on preferred viewing distance. Moreover, viewing angle was highly correlated with preferred viewing distance. The more deflected from the direct front view, the shorter the preferred viewing distance was.

並列關鍵字

Liquid crystal display high-definition television ； Preferred viewing distance ； Screen luminance contrast ； Subtitle type ； Viewing angle