HIDDEN LIGHT DEVICE FOR VEHICLE

A hidden light device for a vehicle is configured to emit light from a grill of the vehicle, and when the light is not emitted, aesthetics of the grill may be maintained. The hidden light device includes: the grill having an outer surface forming a pattern composed of a plurality of grids; grid panels provided to some or all of the plurality of grids, respectively; an optical module provided inside each of the grid panels to allow the grid panels to form the pattern of the grill when turned off, and to emit light through the grid panel when turned on so as to make the grid panel serve as lighting of the vehicle; and a controller configured to control the optical modules to be turned on and off independently.