Reading on LCD vs e-Ink displays: effects on fatigue and visual strain

Siegenthaler, Eva; Bochud, Yves; Bergamin, Per; Wurtz, Pascal (2012). Reading on LCD vs e-Ink displays: effects on fatigue and visual strain. Ophthalmic and Physiological Optics, 32(5), pp. 367-374. Wiley 10.1111/j.1475-1313.2012.00928.x

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Purpose:  Most recently light and mobile reading devices with high display resolutions have become popular and they may open new possibilities for reading applications in education, business and the private sector. The ability to adapt font size may also open new reading opportunities for people with impaired or low vision. Based on their display technology two major groups of reading devices can be distinguished. One type, predominantly found in dedicated e-book readers, uses electronic paper also known as e-Ink. Other devices, mostly multifunction tablet-PCs, are equipped with backlit LCD displays. While it has long been accepted that reading on electronic displays is slow and associated with visual fatigue, this new generation is explicitly promoted for reading. Since research has shown that, compared to reading on electronic displays, reading on paper is faster and requires fewer fixations per line, one would expect differential effects when comparing reading behaviour on e-Ink and LCD. In the present study we therefore compared experimentally how these two display types are suited for reading over an extended period of time.

Methods:  Participants read for several hours on either e-Ink or LCD, and different measures of reading behaviour and visual strain were regularly recorded. These dependent measures included subjective (visual) fatigue, a letter search task, reading speed, oculomotor behaviour and the pupillary light reflex.

Results:  Results suggested that reading on the two display types is very similar in terms of both subjective and objective measures.

Conclusions:  It is not the technology itself, but rather the image quality that seems crucial for reading. Compared to the visual display units used in the previous few decades, these more recent electronic displays allow for good and comfortable reading, even for extended periods of time.

Item Type:

Journal Article (Original Article)


04 Faculty of Medicine > University Psychiatric Services > University Hospital of Psychiatry and Psychotherapy > UPD Murtenstrasse
04 Faculty of Medicine > Department of Head Organs and Neurology (DKNS) > Clinic of Neurology
04 Faculty of Medicine > Pre-clinic Human Medicine > BioMedical Research (DBMR)
04 Faculty of Medicine > Pre-clinic Human Medicine > BioMedical Research (DBMR) > Forschungsbereich Pavillon 52 > Forschungsgruppe Perzeption und Okulomotorik

UniBE Contributor:

Wurtz, Pascal


600 Technology > 610 Medicine & health
100 Philosophy > 150 Psychology
600 Technology > 620 Engineering








Pascal Wurtz

Date Deposited:

05 Jun 2014 13:54

Last Modified:

10 Aug 2015 13:25

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