Article From:https://www.cnblogs.com/woshimama/p/9062235.html

1.Resolving power

Resolution, also known as display resolution or screen resolution, refers to the number of pixels in horizontal or vertical direction.

 2.Screen size

The screen size is the length of the diagonal line of the cell phone

1Inch (inch) =2.54 cm (CM)

 

The resolution of this cell phone is 1920×1080 pixels

The screen size (diagonal length) is 5.2 inches

 

 

 3Screen pixel density

Screen pixel density, that is, the number of pixels per inch screen.

 

What is the relationship between screen pixel density, resolution and screen size?

 

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