A program method of a nonvolatile memory device according to example embodiments includes a operation of detecting a level of a program voltage; and a operation of providing a unselected word line voltage and a bit line precharge voltage having a variable level respectively according to the detected level of the program voltage. The method comprises perceiving processing provided in order to facilitate a meaningful representation andor an instant understanding of the image to be displayed, said perceiving processing resulted in generating one or more perceiving image ingredients. The electric supply coil is used to send a first oscillation signal. The second transistor is a switching transistor for switching on and off the driving transistor.