本研究探討了環境照度（200，500，1000LX）和光源（TL84螢光燈和D65日光燈）下使用不同的電子紙顯示器（Amazon Kindle DX，Sony Reader PRS- 700，iRex 1000S）對閱讀績效和視覺疲勞影響。電子紙顯示器的閱讀也被拿來與紙張閱讀作比較。在實驗一，一百位受試者參加了閱讀實驗，實驗中三種電子紙顯示器的顯示區域被控制為一致。總的來說，實驗一結果指出受試者的視覺績效在不同電子紙顯示器，環境照度和光源組合上無統計上顯著差異。在三種類型的電子紙顯示了類似的閱讀績效，無論是閱讀速度和理解正確率皆無顯著差異。而與紙張相比，紙張對於視覺疲勞的影響較電子紙顯示器為低。
在實驗二中，另外六十位受試者進行了同樣的閱讀任務，三種電子紙顯示器被設定為全螢幕顯示，實驗二結果指出閱讀速度在不同電子紙顯示器與不同環境照度下有顯著不同，螢幕較小的電子紙顯示器有較慢的閱讀速度，而閱讀速度隨著環境照度增加而變快。環境照度對閃光融合閾值的改變有顯著影響。至於實驗結果如何在電子紙的使用上應用也在文中討論。

In this study, the effects of ambient illuminance and light source on participants’ reading performance and visual fatigue during a long reading task were investigated using three electronic paper displays. Reading on electronic paper displays was also compared with reading on paper. In Experiment 1, 100 participants performed a reading task where the display area for the text was equated for the displays. The results indicated that participants’ visual performance and visual fatigue did not differ significantly among different electronic paper displays, ambient illuminance conditions, or light sources. In Experiment 2, another 60 participants performed the same reading task where the full screen of each electronic paper display was used to present the text. The results showed that reading speed differed significantly across different electronic paper displays and ambient illuminance levels. The reading speed was slower for displays with smaller screens and increased as the ambient illuminance increased. Changes in the critical flicker fusion frequency significantly differed across ambient illuminance levels. Implications of the results for the use of electronic paper displays are discussed.

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