A liquid crystal display device and a display method are provided. The liquid crystal display device includes a light guide plate including a plurality of light extraction areas arranged along a first direction, and a liquid crystal display component arranged in a light exiting direction of the light guide plate; in a thickness direction of the liquid crystal display component, each of the plurality of pixel areas includes a first electrode layer, a second electrode layer, a liquid crystal layer, and a light filter layer arranged on a side of the liquid crystal layer that is away from the light guide plate; the light filter layer includes a plurality of first light shielding strips arranged along the first direction; each of the plurality of first light shielding strips extends along a second direction substantially perpendicular to the first direction.