NanoTech Entertainment Inc (NTEK)

[TooFrank]

Realize watching 4K

https://informitv.com/2014/11/24/4k-coming-to-screens-large-and-small/

At a distance of around 10 inches, people with average vision can discern individual pixels at a density of up to about 340 pixels per inch, rising to around 570 pixels per inch for those with perfect vision.

However, the human vision system is not entirely explained by visual acuity. Another measure, known as vernier acuity, which distinguishes the relative alignment of two line segments, apparently shows that people can distinguish details five to ten times smaller than visual acuity would suggest.

This is because the image of a line stimulates many photoreceptors in the retina, which are then processed by the neural vision system in the brain.

This is particularly relevant for text and graphics. While 300 dots per inch in generally accepted as a reasonable resolution for photographs intended for print, text is generally rendered at much higher resolutions. Even entry-level laser printers offer 600dpi, while high-end printers range from 1200 to 2400dpi or more.

A study by Sharp, appropriately enough, concluded that many consumers can and do perceive differences in resolution far beyond 440 pixels per inch.

A 10-inch tablet with a resolution of 1920×1080, equivalent to high definition television, would have a pixel density of around 220 pixels per inch. The same size screen at a resolution of 3840×2160, or ultra-high-definition, would have a pixel density of around 440 pixels per inch, which may still be below the level that human vision can discern.