Display device with input function
View Patent ↗A display device with an input function is provided with a display panel, a touch sensor arranged overlapping the display panel, and an electromagnetic shield arranged overlapping the display panel, the display panel, the touch sensor, and the electromagnetic shield have flexibility, the display panel includes a substrate having flexibility, a functional circuit layer arranged on the first surface of the substrate, and a display element layer provided in a location facing the first surface via the functional circuit layer, the touch sensor includes a plurality of electrostatic capacitance type sensor electrodes arranged in a location facing the functional circuit layer via the display element layer, the electromagnetic shield is arranged in a location further outside than the touch sensor from the rolled axis or the folded axis of the substrate when the functional circuit layer and the display element layer are rolled or folded inward.
1. A display device with an input function comprising:
a display panel having flexibility;
a touch sensor arranged overlapping the display panel;
an electromagnetic shield arranged overlapping the display panel; and
a control circuit connected to the touch sensor,
wherein
the touch sensor and the electromagnetic shield are arranged so that it is possible to be rolled together with the display panel in at least a first direction;
the display panel includes a pixel region in which a plurality of pixels is arranged;
the touch sensor includes a plurality of electrostatic capacitance type sensor electrodes in a region overlapping at least the pixel region,
the control circuit includes a rolled state determination circuit for detecting the rolled state of the display panel;
the plurality of sensor electrodes includes a plurality of transmitter electrodes extending in the first direction and a plurality of receiver electrodes extending in a second direction intersecting the first direction;
the control circuit includes a transmitter electrode drive circuit electrically connected to the plurality of transmitter electrodes, and a detection circuit electrically connected to the plurality of receiver electrodes; and
the output signal of the detection circuit is input into the rolled state determination circuit.
2. The display device with an input function according to claim 1 ,
wherein the control circuit stops the signal detection of at least the receiver electrode included in the rolled region among the plurality of receiver electrodes based on the output signal of the rolled state determination circuit when the display panel is rolled.
3. The display device with an input function according to claim 1 ,
wherein the display panel further includes a rotation sensor for detecting the rolled state, and
the rotation sensor outputs a signal showing the rolled state to the rolled state determination circuit.
4. The display device with an input function according to claim 1 ,
wherein the display panel includes a plurality of scanning lines arranged in the pixel region, and a scanning line drive circuit for outputting scanning signals to the scanning line, and
the scanning line drive circuit stops the signal output to the scanning line included in the rolled region among the plurality of scanning lines based on the output signal of the rolled state determination circuit.
5. A display device with an input function comprising:
a display panel having flexibility;
a touch sensor arranged overlapping the display panel;
an electromagnetic shield arranged overlapping the display panel;
a control circuit connected to the touch sensor,
wherein
the touch sensor and the electromagnetic shield are arranged so that it is possible to be rolled together with the display panel in at least a first direction;
the display panel includes a pixel region in which a plurality of pixels is arranged;
the touch sensor includes a plurality of electrostatic capacitance type sensor electrodes in a region overlapping at least the pixel region;
the control circuit includes a rolled state determination circuit for detecting the rolled state of the display panel;
the plurality of sensor electrodes includes a plurality of sensor electrodes for detecting self-capacitance, and a rolled state detection electrode arranged in the second direction intersecting the first direction between the plurality of sensor electrodes;
the control circuit includes a first detection circuit electrically connected to the plurality of sensor electrodes, and a second detection circuit electrically connected to the rolled state detection electrode, and
the output signals of the first detection circuit and the second detection circuit are input into the rolled state determination circuit.
6. The display device with an input function according to claim 5 ,
wherein the control circuit stops the signal detection of at least the sensor electrode included in the rolled region among the plurality of sensor electrodes based on the output signal of the rolled state detection circuit when the display panel is rolled.
7. The display device with an input function according to claim 5 ,
wherein the display panel further includes a rotation sensor for detecting the rolled state, and
the rotation sensor outputs a signal showing the rolled state to the rolled state determination circuit.
8. The display device with an input function according to claim 5 ,
wherein the display panel includes a plurality of scanning lines arranged in the pixel region, and a scanning line drive circuit for outputting scanning signals to the scanning line, and
the scanning line drive circuit stops the signal output to the scanning line included in the rolled region among the plurality of scanning lines based on the output signal of the rolled state determination circuit.