Questions tagged [pixels]

109 questions
216
votes
12 answers

Why are pixels square?

Pixels in screens are square, but I'm not sure why. Both pixelated images look pretty bad - but I'm not sure there's any advantage of squares over hexagons here. Hexagons also divide up into 3 colours nicely: So what's the advantage of squares…
Tim
  • 2,367
23
votes
8 answers

Does 1 pixel have a standard size?

I'm confused about the term "pixels per inch" iPhone 6 has 326 ppi there's 25.4 millimeter in 1 inch which I can barely see... how much more of 326 pixels inside 1 inch.... So does Pixel have a standard size?
tseug
  • 481
3
votes
2 answers

Average PPI used?

Throughout all laptops and desktops what is the standard pixels per inch (PPI) used? Does it vary throughout screen ratio? I found mine to be 100ppi, the real world measurement was 4 pixels more.
Rublacava
  • 243
2
votes
0 answers

Minimum number of pixels per digit for the human eye?

How many pixels per digit do I need for the huhman eye to be able to recognize that digit? I need to cover a rather big area and identify ID codes. The digits are 10 cm high and maybe 8 cm wide. With the current solution I have only 34 pixels per…
Clara
  • 37
0
votes
2 answers

Red dots on my new laptop?

I just purchased a new laptop with Intel HD 4400 with a dedicated NVIDIA GTX 970m graphic card. When I booted up everything was fine, but after I set up the computer I updated the NVIDIA drivers and it was one of the first things I did. Then I…
Andy
  • 1
-1
votes
2 answers

How do I measure screen width and screen depth?

I would like to know whether you might have a quick program which measures screen width and screen height. For example, starting off reading left to right (or right to left), I would like to know the proportion of the screen being used in terms…