pixel density

This term is a technical specification used primarily in electronics and digital imaging to describe the clarity and sharpness of a screen. A higher value indicates a more refined image where individual pixels are invisible to the naked eye, whereas a lower value results in a pixelated or grainy appearance.

In professional and consumer contexts, it is almost always discussed in relation to the physical size of the display. Because it is a measurement of a ratio (pixels per inch), it functions as a technical property rather than a countable object.