Sensor and position detection apparatus
A sensor is provided, which includes an on-cell mutual-capacitance touch sensor and a RX electrode layer (RX sensor coil group) including a plurality of RX electrodes that detect a pen alternating magnetic field generated by a pen, which has accumulated energy through an alternating magnetic field from a TX electrode layer (TX sensor coil group). The TX electrode generates the alternating magnetic field for detecting a position of the pen by using an electromagnetic induction effect. In the RX electrode layer (RX sensor coil group), floating patterns, which 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 which are adjacent to one another in an extension direction of the RX electrodes, are connected to one another by jumper wires to linearly form RX electrode wires.
1 . 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.
2 . The sensor according to claim 1 , comprising at least:
a first layer including the first electrode group included in the on-cell mutual-capacitance touch sensor;
a second layer including auxiliary wires connecting some of electrodes of the first electrode group to one another and some of electrodes of the second electrode group included in the electromagnetic induction sensor; and
a third layer including some other of the electrodes of the second electrode group included in the electromagnetic induction sensor.
3 . The sensor according to claim 2 , wherein
the auxiliary wires include jumper wires or bridge wires.
4 . The sensor according to claim 1 , comprising:
a shared layer shared by an electrode group extending in a first direction of the on-cell mutual-capacitance touch sensor and some of electrodes of the second electrode group that generate an alternating magnetic field for detecting a position of a pen in the electromagnetic induction sensor; and
a mixed layer in which some other of the electrodes of the second electrode group that detect a pen alternating magnetic field, the pen alternating magnetic field being generated by the pen that has accumulated energy through the alternating magnetic field from the some of the electrodes of the second electrode group, and an electrode group extending in a second direction crossing the first direction of the on-cell mutual-capacitance touch sensor are connected to one another through auxiliary wires.
5 . The sensor according to claim 4 , wherein
the auxiliary wires include jumper wires or bridge wires.
6 . The sensor according to claim 5 , wherein
a shape of a coil group including the some other of the electrodes of the second electrode group connected by the auxiliary wires is a comb shape.
7 . The sensor according to claim 6 , wherein
sensor electrodes of the on-cell mutual-capacitance touch sensor include floating patterns and peripheral parts surrounding the floating patterns from outside, and
a linear coil group including the floating patterns from an open end side to a finish end side of the comb-shaped coil group and the auxiliary wires is arranged not to overlap, in plan view, a linear coil group including the peripheral parts extending in the second direction crossing the first direction of the on-cell mutual-capacitance touch sensor and the auxiliary wires.
8 . The sensor according to claim 7 , wherein
the peripheral parts of the sensor electrodes adjacent to each other in the first direction are connected to each other by a plurality of wires or a connection part including a wide wire, and in the some other of the electrodes of the second electrode group, the floating patterns of the sensor electrodes adjacent to each other in an extension direction are connected to each other by the plurality of auxiliary wires.
9 . The sensor according to claim 8 , wherein
a plurality of wires are added to the floating patterns or the peripheral parts of the floating patterns in the sensor electrodes.