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]] | ||
Revision as of 21:17, 27 August 2015
This page is a stub, please expand it if you have more information.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 in Virtual Reality
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.