Pixel Density: Explained!

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44 COMMENTS

  1. Yes, smaller screen size increases PPI,but downside is that it reduces peripheral vision. Indeed, 24" 1080P display has around 90 PPI whereas 27" 1080P has around 81 PPI. But at least I can easily see more peripheral vision which is excellent for gaming, video editing, web browing, and watching videos. So I actually like bigger screen over smaller screen.

  2. Retina display is not a set PPI its the PPI needed for the viewing type(average distance), for it's display area, for the average person to not be able to distinguish between pixels and the black space. Where as a 40 inch 1080P TV is probably a retina display at it's normal viewing distance, a VR helmet might need a PPI of over 1000 to be considered retina, because to pot it in scale, you're standing 2 feet away from a 50 inch screen

  3. i would want a display with 182818284590452353602874713526624977572470936999595749669676277240766303535
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  4. 4:13 Haha it's actually only 263.92 PPI. To be 500 something it would have to be Galaxy s4, s5, s6, note 4, note 5, lg g3 (which was the pioneer of extreme 2560×1440 density on phones), lg g4, or lg g5

  5. The math doesn't work out.
    I have a 29 inch screen at 2560×1080(=2073600) pixels with dimesnions 26,5''x11,5''(=298,125), which by your math would give me a ppi of 6955,5ppi! Obviously wrong!
    Correct way to do it is to first square the pixel numbers in each direction and add the two numbers together. (2560^2 + 1080^2), then take the square root of that and divide it by the diagonal length of the screen; the one most frequently given by producer. [sqrt(2560^2 + 1080^2)]/29= 2778,5/29 = 95,8! That's more like it!

  6. I'm not quite understanding, so basically the farther away you use the device then the smaller the pixel density should be? And the smaller the pixel density then the better the display or is it vice versa?

  7. In researching process for 4k TV i appreciated this video. Already bought Vizio 50" for $698! but not happy with it so I'm going to exchange for Samsung UN55HU6950. Anyways wanted to say i found it ironically funny that you said u didnt believe macbook with retina would be coming out, yet that is what i just watched this vid on. 2013 model, lol. Love all your videos Marques and appreciate what you do and also wanted to say it makes me smile to see a prediction like this. You're so good at everything you do, its nice to see your human once in a while. Thank you for sharing your passion with the world and thanks the inspiration. Hopefullly soon this year i can get my channel up and running.

  8. Woah man! Don't get ahead of yourself, a Retina Display on an iPad?! That is absurd! That sounds like something too futuristic to even imagine…I mean, retina display on anything is hard to imagine! haha

  9. Thank you very much Marques for your video on Pixel Density – you explain really well and it helped me understand. But I don't think I understood the calculation for the ppi. For the full HD pixel display, I calculated thus: to get the total number of pixels on the screen display . . 1920 x 1080 = 2,073,600 total pixels. Then, to get the total size of the screen display – the area, I calculated . . 20.5" x 12.5" = 256 total square inches. Then, in order to work out the pixel density (ppi), I calculated: 2,073,600 divided by 256 = 8,100 ppi. But this doesn't seem right – it seems awfully high. What have I done wrong? Could you, or someone please kindly enlighten me. Thank you for your help. Chris

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