3 ms·
For a non-PWMed high DPI monitor adjusted to match the e-ink's brightness and contrast, the only difference in the light hitting your eye is the spectrum and th
by mrob 9y ago
For a non-PWMed high DPI monitor adjusted to match the e-ink's brightness and contrast, the only difference in the light hitting your eye is the spectrum and the polarization. It's not completely impossible for these to matter, because of interactions with optical imperfections of the eye, but I've never seen any evidence that it actually does matter.
- anotheryou 9y agoYou make one good point for e-paper though: paper is always adjusted to the room lights.
- bobajeff 9y agoWhat about blue light? I've been hearing about that being a problem lately.
- mrob 9y agoBlue light stimulates intrinsically photosensitive retinal ganglion cells, which influence sleep. Visually identical white lights can have different spectra and different effect on these cells. Eg. "warm white" made from RGB with the blue channel turned down, eg. as with f.lux, will probably stimulate those cells more than sharply long-pass filtered (eg. with a dichroic filter) broad spectrum light of the same color temperature. These cells are also responsible for light aversion, at least in animal models, eg: https://www.ncbi.nlm.nih.gov/pubmed/23078956 https://www.ncbi.nlm.nih.gov/pubmed/23078956 , so it could theoretically make a difference to eye strain, especially at high brightness levels. However, if you read the e-ink under fluorescent or LED based lighting it's probably going to have a similar peaked spectrum to the LCD screen and there will be no difference if the brightness and color temperature is the same.
- rhaps0dy 9y agoYou can use f.lux https://justgetflux.com https://justgetflux.com to compensate for that.