Pixel density: Difference between revisions
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[[Pixel density]] is the number of [[pixels]] in a fixed distance. It is often measured in '''pixels per inch''' or '''PPI'''. Pixel density is different from [[resolution]], the total number of pixels across width and height. | [[Pixel density]] is the number of [[pixels]] in a fixed distance. It is often measured in '''pixels per inch''' or '''PPI'''. Pixel density is different from [[resolution]], the total number of pixels across width and height. | ||
==Pixel | ==Pixel density in Virtual Reality== | ||
[[Virtual Reality#Devices|Virtual reality head-mounted displays]] require high pixel density. | [[Virtual Reality#Devices|Virtual reality head-mounted displays]] require high pixel density because the screen is very close to the user's eyes. An [[HMD]] with low pixel density can cause blurring of words and objects, reduction of [[immersion]] and elimination of [[presence]]. In [[VR]] PPI is just as important if not more important than resolution. | ||
As pixel density increases, lower [[persistence]] is needed to avoid blurring. | |||
==Pixel density of various HMDs== | |||
[[Category:Terms]] | [[Category:Terms]] | ||