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Laptop LCD low-light night mode
July 10, 2012
2 Votes
Status: Archived
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Over recent years, more studies have been published demonstrating the detrimental effects of bright, especially blue, light on sleep patterns. Unfortunately, recent Dell laptops using LEDs are much too bright for comfortable night use even at the lowest backlight setting. Dell should ensure that their backlights can be taken down to levels that would be comfortable for use in the dark.
I'm typing this on an XPS L502x at night, and it is way too bright. It needs to be at least 50% dimmer than it is for it to be comfortable.
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Sep 11, 2012 Comment Link
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Posted By: BioTurboNick
New relevant information: http://www.sciencedaily.com/releases/2012/09/120910111702.htmJul 12, 2012 Comment Link
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Posted By:
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Cy_J
Thank you for the additional information.Jul 12, 2012 Comment Link
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Posted By: BioTurboNick
I don't know about best practices, but here is one relevant study about blue light:http://jap.physiology.org/content/early/2011/03/10/japplphysiol.00165.2011.abstract
Blue light aside, the sheer brightness of the screen is more of an issue (eye strain and sleep). Unfortunately, I cannot find documentation as to what the brightness range of the XPS L502x is, nor for laptop monitors in generally--generally only a "typical" brightness is published, if anything. I do know that my previous laptop, an XPS m1530 with a CCFL backlit screen, was much dimmer at the low-end and more comfortable for nighttime use.
Now, having a brighter display is good for the daytime, it just needs to go lower but keep the same maximum setting.
Jul 10, 2012 Comment Link
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Posted By:
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Cy_J
Thanks for posting BioTurboNick. I have heard about the sleep pattern issue. Do you have a link to one of the articles with best practices?