Display device with touch detection function and electronic apparatus
View Patent ↗According to an aspect, a display device with a touch detection function includes: a substrate; a display area in which pixels each constituted by different color regions are arranged in a matrix and that includes color columns in which the color regions of the same colors extend side by side; a touch detection electrode that includes a plurality of conductive thin wires; and a drive electrode. Each of the conductive thin wires includes a plurality of portions at each of which the conductive thin wire extends in a direction at an angle with respect to a direction of extension of the color regions, and a plurality of bent portions at each of which the conductive thin wire is bent with the angle changed. The conductive thin wires include portions each overlapping all of the color columns in a direction orthogonal to the surface of the substrate.
1. A display device with a touch detection function comprising:
a substrate;
a display area in which pixels each constituted by a plurality of different color regions corresponding to a plurality of different colors are arranged in a matrix in a plane parallel to a surface of the substrate and that includes color columns in each of which the color regions of a same color extend side by side;
a touch detection electrode that includes a plurality of conductive thin wires extending in a plane parallel to the surface of the substrate; and
a drive electrode that has electrostatic capacitance with respect to the touch detection electrode,
each of the conductive thin wires includes a plurality of line portions at each of which the conductive thin wires extend in a direction at an angle with respect to a direction of extension of the color columns, and a plurality of bent portions at each of which the conductive thin wires are bent with the angle changed,
in each conductive thin wire, each line portion is sandwiched between adjacent bent portions,
each line portion included in each of the conductive thin wires includes portions each overlapping all of the plurality of different colors in a direction orthogonal to the surface of the substrate,
each of the conductive thin wires has a zigzag-line shape in which the line portion and the bent portion are arranged alternately and repeatedly,
at least one of the conductive thin wires has a plurality of lengths b different from each other,
where each of the lengths b is a length of an offset in a color region orthogonal direction from one of the bent portions to another bent portion next to the bent portion in the same one of, and on the same side of, the conductive thin wires, and the color region orthogonal direction is a direction orthogonal to the direction of extension of the color columns of the same colors in the plane parallel to the surface of the substrate,
the plurality of lengths b includes a first length b 1 and a second length b 2 ,
the first length b 1 is a length of an offset in the color region orthogonal direction from a first bent portion to a second bent portion next to the first bent portion,
the second length b 2 is a length of an offset in the color region orthogonal direction from the second bent portion to a third bent portion next to the second bent portion, and
the first length b 1 and the second length b 2 satisfy the following relation:
b1<b2.
2. The display device according to claim 1 , satisfying the following formula (1):
P<b+d (1)
where P is an interval between adjacent conductive thin wires in the color region orthogonal direction, and d is a width in the color region orthogonal direction of each of the color regions.
3. The display device according to claim 2 , wherein b in the formula (1) is b 1 , and b 1 is a minimum length of the lengths b.
4. The display device according to claim 1 , satisfying the following formula (2):
b<P (2)
where P is an interval between adjacent conductive thin wires in the color region orthogonal direction.
5. The display device according to claim 4 , wherein b in the formula (2) is b 1 , and b 1 is a minimum length of the lengths b.
6. The display device according to claim 1 , further satisfying the following formula (3):
P≤160 μm (3)
where P is an interval between adjacent conductive thin wires in the color region orthogonal direction.
7. The display device according to claim 1 , wherein each of the conductive thin wires has a width less than d, where d is a width in the color region orthogonal direction of each of the color regions.
8. An electronic apparatus comprising:
a display device with a touch detection function that comprises:
a substrate;
a display area in which pixels each constituted by a plurality of different color regions corresponding to a plurality of different colors are arranged in a matrix in a plane parallel to a surface of the substrate and that includes color columns in each of which the color regions of a same color extend side by side;
a touch detection electrode that includes a plurality of conductive thin wires extending in a plane parallel to the surface of the substrate; and
a drive electrode that has electrostatic capacitance with respect to the touch detection electrode, wherein
each of the conductive thin wires includes a plurality of line portions at each of which the conductive thin wires extend in a direction at an angle with respect to a direction of extension of the color columns, and a plurality of bent portions at each of which the conductive thin wires are bent with the angle changed,
in each conductive thin wire, each line portion is sandwiched between adjacent bent portions,
each line portion included in each of the conductive thin wires includes portions each overlapping all of the plurality of different colors in a direction orthogonal to the surface of the substrate,
each of the conductive thin wires has a zigzag-line shape in which the line portion and the bent portion are arranged alternately and repeatedly,
at least one of the conductive thin wires has a plurality of lengths b different from each other,
where each of the lengths b is a length of an offset in a color region orthogonal direction from one of the bent portions to another bent portion next to the bent portion in the same one of, and on the same side of, the conductive thin wires, and the color region orthogonal direction is a direction orthogonal to the direction of extension of the color columns of the same colors in the plane parallel to the surface of the substrate,
the plurality of lengths b includes a first length b 1 and a second length b 2 ,
the first length b 1 is a length of an offset in the color region orthogonal direction from a first bent portion to a second bent portion next to the first bent portion,
the second length b 2 is a length of an offset in the color region orthogonal direction from the second bent portion to a third bent portion next to the second bent portion, and
the first length b 1 and the second length b 2 satisfy the following relation:
b1<b2.