What is video resolution?

What is video resolution?

Television signals are composed of individual scanning lines that run horizontally across the screen. Each line is "painted" by an electron beam or by illumination of a discrete pixel. The number of phosphor points or pixels determines the horizontal resolution of the image. The total number of scanning lines always fixes the vertical resolution; the North American broadcast system standard is 525 lines.

If there are 525 horizontal lines making up the vertical resolution of the image, and that is a fixed number, how can various manufacturers publish different resolutions specifications for their sets? The resolution they reference is the horizontal resolution, or the ability of each horizontal scanning line to define a single pixel or phosphor point. If a horizontal scanning line has the ability to resolve 450 dots along its length, then the television or projection set would have the ability to show an image with 450 lines of resolution. Horizontal resolution is analogous to the maximum useful "bandwidth" of the display device.

Please visit Kongcable for all your audio and video needs including HDMI. Founder and owner of Kongcable.com, Michael Mancini, lives in Columbus Ohio. Michael was born and raised in London, Ohio.

If you like cornhole, please come and check us out at Woodgamz.com