Display apparatus with touch detection function and electronic apparatus
A display apparatus with a touch detection function includes: a substrate; a display area including a plurality of pixels; a touch detection electrode including a plurality of small electrode portions; a plurality of wiring portions electrically coupling the small electrode portions to a terminal portion formed; and a plurality of drive electrodes forming capacitance between the drive electrodes and the touch detection electrode. The small electrode portions each include one conductive thin wire in which one first thin wire segment and one second thin wire segment are coupled in a first direction, the first thin wire segment makes a first angle with respect to the first direction, the second thin wire segment makes a second angle with respect to the first direction, and the wiring portions each include the one first thin wire segment and the one second thin wire segment that are coupled in the first direction.
1. A display apparatus comprising:
a substrate;
a display area that includes a plurality of pixels arranged in a plane parallel to a principal surface of the substrate;
a detection electrode that includes a plurality of first detection electrodes and a plurality of second detection electrodes each of which is a part of a plurality of small electrode portions arranged in a plane parallel to the principal surface of the substrate, the small electrode portions each including a plurality of conductive thin wires,
wherein each of the conductive thin wires includes a first thin wire segment and a second thin wire segment that are coupled in a first direction, the first thin wire segment makes a first angle with respect to the first direction, and the second thin wire segment makes a second angle with respect to the first direction;
a plurality of wiring portions that electrically couple to the small electrode portions, each of the wiring portions including the first thin wire segment and the second thin wire segment that are coupled in the first direction;
a plurality of drive electrodes configured to form capacitance between the drive electrodes and the detection electrode;
a drive electrode driver configured to supply a drive signal to the drive electrodes in both a first mode and a second mode that is different from the first mode;
a first detection signal amplifier configured to receive a first signal from the first detection electrodes in both the first mode and the second mode; and
a second detection signal amplifier configured to receive a second signal from the second detection electrodes in the second mode, and not to receive the second signal from the second detection electrodes in the first mode.
2. The display apparatus according to claim 1 , further comprising:
a plurality of switches arranged between the second detection electrodes and the second detection signal amplifier,
wherein the switches are configured to electrically couple the second detection- electrodes to the second detection signal amplifier.
3. The display apparatus according to claim 2 , wherein
the plurality of switches are configured not to electrically couple the second detection electrodes to the second detection signal amplifier in the first mode.
4. The display apparatus according to claim 1 , wherein
the second detection electrodes are in an electrically floating state in the first mode.
5. The display apparatus according to claim 1 , wherein
the plurality of wiring portions include a plurality of first wiring portions and a plurality of second wiring portions,
each of the first detection electrodes is electrically coupled to each of the first wiring portions, and
each of the small electrode portions included in each of the second detection electrodes is electrically coupled to corresponding one of the second wiring portions.
6. The display apparatus according to claim 1 , wherein
each of the second detection electrodes and the first detection electrodes has the small electrode portions aligned in the first direction,
the small electrode portions have a rectangular shape including a first side and a second side that extend in the first direction,
in each of the second detection electrodes, each of the wiring portions is connected to a corresponding one of the small electrode portions in such a manner that the wiring portions are connected to the small electrode portions alternately at the first side and the second side of the small electrode portions.
7. The display apparatus according to claim 1 , wherein
the small electrode portions are arranged in a matrix in the plane parallel to the principal surface of the substrate.
8. The display apparatus according to claim 1 , wherein
each of the pixels corresponds to one of a plurality of colors,
the pixels adjacent to each other in the first direction correspond to a same color,
the pixels adjacent to each other in a second direction crossing the first direction correspond to different colors.
9. The display apparatus according to claim 8 , wherein
the conductive thin wires include a first conductive thin wire and a second conductive thin wire adjacent to the first conductive thin wire in the second direction,
the plurality of pixels include a first pixel and a second pixel that correspond to a same color and that are adjacent to each other in the second direction,
an overlapped position of the first direction in which the first conductive wire overlaps the first pixel is different from an overlapped position of the first direction in which the second conductive wire overlaps the second pixel.
10. The display apparatus according to claim 8 , wherein
the conductive thin wires include a first conductive thin wire and a second conductive thin wire adjacent to the first conductive thin wire in the second direction,
the plurality of pixels include a first pixel and a second pixel that correspond to a same color and that are adjacent to each other in the second direction,
an area in which the first pixel is overlapped by the first conductive thin wire is different from an area in which that the second pixel is overlapped by the second conductive thin wire.
11. The display apparatus according to claim 1 , wherein
the first mode and the second mode are in a detection period in which no image is displayed in the display area.
12. The display apparatus according to claim 1 , further comprising:
a dummy electrode portion extending in a first direction and being disposed between the small electrode portions that are adjacent in a second direction intersecting the first direction,
wherein the dummy electrode portion includes a plurality of dummy electrodes comprising thin wire fragments disposed separately from each other.
13. A display apparatus comprising:
a substrate;
a display area that includes a plurality of pixels arranged in a plane parallel to a principal surface of the substrate;
a detection electrode that includes a plurality of first detection electrodes and a plurality of second detection electrodes each of which is a part of a plurality of small electrode portions arranged in a plane parallel to the principal surface of the substrate;
a plurality of wiring portions that electrically couple the small electrode portions to a terminal portion formed outside the display area;
a first detection signal amplifier configured to receive a first signal from the first detection electrodes in both a first mode and a second mode;
a second detection signal amplifier configured to receive a second signal from the second detection electrodes in the second mode; and
a plurality of switches arranged between the second detection of electrodes and the second detection signal amplifier, the switches being configured to electrically couple the second detection of electrodes to the second detection signal amplifier, wherein
each of the second detection electrodes and the first detection electrodes has the small electrode portions aligned in a first direction,
the small electrode portions have a rectangular shape including a first side and a second side that are extending in the first direction, and
in each of the second detection electrodes, each of the wiring portions is connected to corresponding one of the small electrode portions in such a manner that the wiring portions are connected to the small electrode portions alternately at the first side and the second side of the small electrode portions.
14. The display apparatus according to claim 13 , wherein
the plurality of switches are configured not to electrically couple the second detection electrodes to the second detection signal amplifier in the first mode.
15. The display apparatus according to claim 13 , wherein
the plurality of wiring portions include a plurality of first wiring portions and a plurality of second wiring portions,
each of the first detection electrodes is electrically coupled to each of the first wiring portions, and
each of the small electrode portions included in each of the second detection electrodes is electrically coupled to corresponding one of the second wiring portions.
16. The display apparatus according to claim 13 , wherein
each of the pixels corresponds to one of a plurality of colors,
the pixels adjacent to each other in the first direction correspond to a same color,
the pixels adjacent to each other in a second direction crossing the first direction correspond to different colors.
17. The display apparatus according to claim 16 , wherein
each of the small electrode portions includes a plurality of conductive thin wires,
the conductive thin wires include a first conductive thin wire and a second conductive thin wire adjacent to the first conductive thin wire in the second direction,
the plurality of pixels include a first pixel and a second pixel that correspond to a same color and that are adjacent to each other in the second direction,
an overlapped position of the first direction in which the first conductive wire overlaps the first pixel is different from an overlapped position of the first direction in which the second conductive wire overlaps the second pixel.
18. The display apparatus according to claim 16 , wherein
each of the small electrode portions includes a plurality of conductive thin wires,
the conductive thin wires include a first conductive thin wire and a second conductive thin wire adjacent to the first conductive thin wire in the second direction,
the plurality of pixels include a first pixel and a second pixel that correspond to a same color and that are adjacent to each other in the second direction,
an area in which the first pixel is overlapped by the first conductive thin wire is different from an area in which that the second pixel is overlapped by the second conductive thin wire.
19. The display apparatus according to claim 13 , further comprising:
a dummy electrode portion extending in a first direction and being disposed between the small electrode portions that are adjacent in a second direction intersecting the first direction,
wherein the dummy electrode portion includes a plurality of dummy electrodes comprising thin wire fragments disposed separately from each other.