PPI (pixels per inch) is the number of pixels displayed in an image. A digital image is information that your screen displays in pixels.
PPI is an important parameter of the screen, when the screen PPI value is very small, you will clearly see the composition of the particles of the screen, which we call grainy.
This small, smooth PPI calculator can easily calculate the screen PPI value, so you no longer have to calculate complex formulas. Would get the screen resolution, but also intimate knowledge of literacy small, so you know more about the various parameters of the screen.
This simple application is developed by Mark Liu.
My Sina micro-blog: @刘寺明86
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