Sensor device and module
According to one embodiment, a sensor device comprises a substrate, and a sensor layer superposed on the substrate, the substrate includes a plurality of individual areas arranged in a matrix in a first direction and a second direction that intersect each other, a plurality of individual electrodes arranged in the plurality of individual areas, and a common electrode facing the plurality of individual electrodes and generating a plurality of electric fields between the plurality of individual electrodes, wherein the plurality of electric fields are in different directions in a planar view, and the plurality of electric fields in different directions are applied to the sensor layer.
1. A sensor device comprising a plurality of sub-modules, one of the plurality of sub-modules comprising:
a substrate; and
a sensor layer superposed on the substrate, wherein
the substrate includes a plurality of individual areas arranged in a matrix in a first direction and a second direction that intersect each other;
the plurality of individual areas includes a first individual area, a second individual area, a third individual area, and a fourth individual area,
the first individual area is located next to the second individual area along the first direction, and the first individual area is located next to the third individual area along the second direction,
the second individual area is located next to the first individual area along the first direction, and the second individual area is located next to the fourth individual area along the second direction,
the first individual area includes a plurality of first individual linear electrodes and a plurality of first common linear electrodes both of which extend in the second direction, and each of first individual linear electrodes facing each of first common linear electrodes,
a plurality of first slits facing each other with the plurality of first individual linear electrodes and the plurality of first common linear electrodes interposed therebetween,
a first electric field between the first individual linear electrodes and the first common linear electrodes is generated in the first direction,
the second individual area includes a plurality of second individual linear electrodes and a plurality of second common linear electrodes both of which extend in the first direction, and each of second individual linear electrodes facing each of second common linear electrodes,
a plurality of second slits facing each other with the plurality of second individual linear electrodes and the plurality of second common linear electrodes interposed therebetween,
a second electric field between the second individual linear electrodes and the second common linear electrodes is generated in the second direction,
the third individual area includes a plurality of third individual linear electrodes and a plurality of third common linear electrodes both of which extend in a third direction intersecting at 45° clockwise to the second direction, and each of third individual linear electrodes facing each of third common linear electrodes,
a plurality of third slits facing each other with the plurality of third individual linear electrodes and the plurality of third common linear electrodes interposed therebetween,
a third electric field between the third individual linear electrodes and the third common linear electrodes is generated in a fourth direction intersecting at 45° counterclockwise to the second direction,
the fourth individual area includes a plurality of fourth individual linear electrodes and a plurality of fourth common linear electrodes both of which extend in the fourth direction, and each of fourth individual linear electrodes facing each of fourth common linear electrodes,
a plurality of fourth slits facing each other with the plurality of fourth individual linear electrodes and the plurality of fourth common linear electrodes interposed therebetween,
a fourth electric field between the fourth individual linear electrodes and the fourth common linear electrodes is generated in the third direction,
the plurality of sub-modules include a first sub-module and a second submodule,
a stress coupling layer is interposed between the first sub-module and the second submodule,
a neutral plane of the sensor device is formed in the stress coupling layer so that the first sub-module and the second submodule have in total a single neutral plane.
2. The sensor device according to claim 1 , comprising a controller that controls the plurality of sub-modules, wherein
the controller measures expansion and contraction in the first direction and the second direction in each of the plurality of sub-modules, and measures bending in a third direction that intersects the first direction and the second direction by comparing measurement values of the plurality of sub-modules.
3. The sensor device according to claim 1 , wherein
the plurality of sub-modules further include a second sub-module and a third sub-module,
one of the plurality of sub-modules is a first sub-module,
the second sub-module is a display device,
the third sub-module is a tactile/force sensing feedback device, and
the first to third sub-modules are stacked.
4. The sensor device according to claim 1 , wherein
the plurality of first individual areas, the plurality of second individual areas, the plurality of third individual areas, and the plurality of fourth individual areas are in equal numbers.
5. The sensor device according to claim 1 , wherein
the plurality of first individual areas and the plurality of second individual areas are in equal numbers,
the plurality of third individual areas and the plurality of fourth individual areas are in equal numbers, and
the plurality of first individual areas and the plurality of second individual areas are in different numbers from the plurality of third individual areas and the plurality of fourth individual areas.
6. The sensor device according to claim 1 , wherein the sensor layer includes a plurality of sensor layers with different sensitivities.
7. The sensor device according to claim 1 , further comprising a sensor which can acquire position information.