Touch panel, display device, and electronic apparatus

A cover glass, comprising:

• a sensor electrode disposed in a sensor area;
• a plurality of signal wires electrically connected to the sensor electrode and extending along a periphery of the sensor electrode;
• a conductive layer disposed in a peripheral area that is outside the sensor area;
• and
• a light blocking layer that is disposed on an opposite side of the conductive layer from the sensor electrode and that overlaps the conductive layer and the plurality of signal wires in a plan view,
• wherein,
• the plurality of signal wires are disposed in the same layer as the sensor electrode,
• the conductive layer is disposed outside the plurality of signal wires in the plan view in the peripheral area, and
• the conductive layer is applied with a reference voltage supplied directly from outside of the cover glass.