ResolutionResolution is a specification often listed for TV's, phone displays, or any electronic screen. Generally, it's believed that bigger is better, and while this is usually true it helps to understand what resolution is so you can make an informed decision about what you need.
What is resolution?
Digital images are made up of thousands of tiny squares called pixels. Resolution is simply the number of pixels in the screen area (or the dimensions vertical-by-horizontal). The higher the resolution, the smaller the pixels, the more detail you can see in the image, and the more the image looks like the real thing. Some of the screens we use today, like the one on the iPhone 4, have pixels so small the human eye can't even distinguish them.
How is resolution measured?
It's usually given as the count of a single vertical line of pixels (ie. 1,080).
Televisions: Usually we're given the vertical dimension of the screen but occasionally, we hear talk about the aspect ratio,Read More »from What the Heck is Resolution Anyway?