Sensor and position detection apparatus

A sensor, comprising:

• an on-cell mutual-capacitance touch sensor;
• and
• an electromagnetic induction sensor, wherein
• a first electrode group included in the on-cell mutual-capacitance touch sensor and a second electrode group included in the electromagnetic induction sensor are provided in three or fewer layers including at least a layer with a mix of part of the first electrode group and part of the second electrode group.

A position detection apparatus that uses an electromagnetic induction effect to detect a position of a pen, the position detection apparatus comprising:

• a transmission electrode layer including a transmission electrode that generates an alternating magnetic field;
• a reception electrode layer including a plurality of reception electrodes that detect a pen alternating magnetic field generated by the pen that has accumulated energy through the alternating magnetic field;
• an on-cell mutual-capacitance touch sensor;
• and
• a display that controls display pixels and flickering of the display pixels, wherein,
• in the reception electrode layer, floating patterns that are surrounded by touch electrodes formed by a mesh electrode pattern provided in an on-cell touch layer of the on-cell mutual-capacitance touch sensor and that are adjacent to one another in an extension direction of the reception electrodes are connected to one another by jumper wires to linearly form the reception electrodes.