The 1,080 pixels are arranged in rows or lines that go from top to bottom. 1,080 (which is referred to as the horizontal resolution) is where the 1080 part of the term 1080p comes from.

One important video resolution term to understand is 1080p, but what does it mean? Digital displays consist of pixels, which ...

The numbers 720 and 1080 refer to the horizontal resolution. Therefore, 720p HD camera resolution provides images that are 1280 x 720 pixels (921,600 pixels - not megapixel), and 1080p HD cameras ...