An anti-spying display, a liquid crystal display device, and an anti-spying component. The anti-spying display comprises: a backlight source (4), a liquid crystal display screen (3), a light grating layer (1) and a black matrix layer (2) provided between a liquid crystal layer of the liquid crystal display screen (3) and the backlight source (4). The light grating layer (1) comprises light grating layer controllable shading areas (101) and light grating layer transparent areas (102) in an alternating arrangement. The black matrix layer (2) comprises black matrix layer shading areas (201) and black matrix layer transparent areas (202) in an alternating arrangement. The light grating layer transparent areas (102) correspond one-to-one to the black matrix layer transparent areas (202); moreover, the light grating layer transparent areas (102) are positionally aligned in the direction perpendicular to the liquid crystal layer with the black matrix layer transparent areas (202) corresponding to the light grating layer transparent areas (102). An anti-spying function is implemented by utilizing the light grating layer controllable shading areas (101) and the black matrix layer shading areas (201) working in tandem; moreover, the anti-spying display is placed in either an anti-spying display mode or a normal display mode by adjusting and controlling the light grating layer controllable shading areas (101) to be in a shading state or a transparent state; and, the structure is simple, thin, and inexpensive.
展开▼
