Liquid crystal apparatus and electronic device

A liquid crystal apparatus comprising:

• a first substrate;
• a liquid crystal layer;
• a second substrate facing the first substrate via the liquid crystal layer;
• a first electrode disposed between the first substrate and the liquid crystal layer;
• a second electrode disposed between the second substrate and the liquid crystal layer;
• an electrode lead line disposed between the first substrate and the liquid crystal layer and electrically coupled to the first electrode;
• a plurality of drive signal lines disposed between the first substrate and the liquid crystal layer and including a first drive signal line intersecting with the electrode lead line in plan view;
• a first conductive layer disposed between the electrode lead line and the first drive signal line and electrically coupled to the second electrode;
• and
• a measurement circuit electrically coupled to each of the first electrode and the second electrode, wherein
• the measurement circuit
• supplies a potential to each of the first electrode and the second electrode so that a potential difference between the first electrode and the second electrode becomes a first potential difference in a first period,
• supplies a potential to each of the first electrode and the second electrode so that the potential difference becomes a second potential difference having a polarity different from that of the first potential difference in a second period after the first period, and
• stops the supply of the potential to the first electrode and supplies the same potential to the second electrode as that in the second period in a third period after the second period.