An embodiment of the application discloses a liquid crystal display device. In the liquid crystal display device, the backlight module includes a backlight module including a conductive back frame; a display panel including a liquid crystal cell and a first polarizer, wherein the first polarizer is disposed on a side of the liquid crystal cell facing the backlight module, and the first polarizer includes a conductive structure layer, a first base layer, and a polarizing layer disposed on the backlight module in sequence; and a conductive component electrically connected to the conductive back frame and the conductive structure layer.