Method for operating electrophoretic display apparatus, electrophoretic display apparatus, and electronic system

An electrophoretic display apparatus comprising:

• a first substrate;
• a second substrate;
• an electrophoretic device being held between the first substrate and the second substrate and containing electrophoretic particles;
• a first electrode formed on a surface of the first substrate, the surface facing the electrophoretic device;
• a second electrode formed on a surface of the second substrate, the surface facing the electrophoretic device;
• and
• a voltage control section that applies a driving voltage to the electrophoretic device,
• wherein the voltage control section is configured to drive the electrophoretic device to display an image by conducting
• a device driving operation in which the electrophoretic device is driven by inputting a first potential into the first electrode and inputting a second potential into the second electrode, and
• an accumulated-charge removing operation in which a potential of the first electrode is changed, from the first potential to the second potential, stepwise or uniformly at a potential change velocity lower than a potential change velocity upon starting of the device driving operation,
• wherein, in the accumulated-charge removing operation, the potential change velocity for the first electrode is in a region represented by Expression (1) below:
• ve≦|V1−V2|/τ (1)
• where ve represents the potential change velocity for the first electrode V1 represents the first potential, V2 represents the second potential, and τ represents a time constant of the electrophoretic device.