LIGHT CONTROL SYSTEM, LIGHT CONTROL DEVICE, LIGHT CONTROL FILM, METHOD FOR DRIVING LIGHT CONTROL FILM, AND VEHICLE

摘要

According to the present invention, in relation to a light control film using liquid crystals, it is possible to prevent uneven luminance that occurs temporarily when a transmittance is variable. Provided are the following: a light control film 10 for controlling transmitted light by orienting, by a VA scheme, liquid crystals of liquid crystal cells 14 sandwiched between linear polarizing plates 12, 13; and a light control device 3 having a drive power source generation unit 5 for outputting a square wave signal to the light control film 10. The light control device 3 varies the transmittance of the light control film 10 by varying the amplitude of the square wave signal in response to operation of operation pieces 2U, 2D; when the amplitude of the square wave signal is to be increased, the amplitude of the square wave signal is increased gradually.