PURPOSE: To prevent a flicker phenomenon and shortening the life by constituting the titled device so that the width of a selecting pulse of an address signal applied to every line is made variable by the polarity of an image signal, and an applied voltage to both ends of a liquid crystal goes to equal in case of a positive pole and a negative pole.

CONSTITUTION: The pulse width of an address signal 1 is varied in accordance with the time when a data signal 2 is a positive pole and a negative pole, against a common potential 3, so that a substantial applied voltage to both ends of a liquid crystal becomes the same. As for the data signal of the positive pole against the common potential 3, a voltage shift in the beginning of write of a selecting pulse works on write advantageously, a voltage VS1 being comparatively near a data signal voltage VD is written. Also, the data signal of the negative pole against the common potential 3 works disadvantageously, on the contrary, therefore, write is not enough and a voltage VS2 being smaller than VS1 is held by a picture element. In such a way, a display failure such as a flicker, etc. is reduced, and a display state which makes a good show, and also causes no time aging deterioration extending over a long period of time can be maintained.