Oct 222011
 

In the dark environment of a bedroom at night time, a reading light is needed to read E-Ink displays, as with printed paper. A backlit LCD eReader has an apparent advantage here as it does not require a reading light. However, studies have reported that the direct illumination into the eyes from the LCD display can cause sleeplessness, whereas using an E-Ink eReader display or printed paper do not cause a “wake up” signal to be sent to the brain. Of course, the brightness of the LCD can be turned down, but it is more the presense of direct illumination rather than the quantity of light that causes the brain to wake up.

What do you think ? Do eReaders cause sleeplessness in your experience ?

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