A liquid crystal display, comprising a back light module, a metal side frame, and a liquid crystal display panel disposed between the back light module and the metal side frame, wherein the metal side frame comprises a first magnet, the back light module comprises a second magnet, at least a portion of the first magnet and the second magnet are oppositely disposed, and each magnet is provided with an identical kind of magnetic pole on the side facing to the liquid crystal display panel. The liquid crystal display retains the gap between the liquid crystal display panel and the metal side frame, thereby preventing the problem of light leakage in a 0 grayscale image.