Sensor device and sensor-equipped display device including detection electrode
A sensor-equipped display device is provided and includes a display panel and a detection electrode. The panel includes a display area in which pixels are arranged with a first pixel pitch in a first direction and a second pixel pitch in a second direction. The electrode includes an pattern having line fragments. The pattern has connection points at which ends of the fragments are connected to each other, and at least part of the connection points is arranged linearly such that an arrangement gaps thereof in the first and second direction is set to a first and second connection point pitch.
1. A sensor device, comprising:
a detection electrode used for a display panel having a plurality of pixels arranged with a first pixel pitch between two adjacent pixels in a first direction, and arranged with a second pixel pitch in a second direction intersecting the first direction, the detection electrode having line fragments connected at connection points with each other, the connection points being alternately arranged with a first connection point pitch between two adjacent connection points in the first direction,
wherein the first connection point pitch excludes a range from 0.5×first pixel pitchx(integer−0.05) to 0.5×first unit pitch×(integer+0.05),
the detection electrode includes a detection line which has a zigzag shape extending in a first arrangement direction intersecting the first direction and the second direction such that all of the connection points extend along a respective line in the first arrangement direction, and
the first arrangement direction is tilted at an acute angle with respect to the first direction and the second direction.
2. The sensor device according to claim 1 , wherein
the connection points are alternately arranged with a second connection point pitch between two adjacent connection points in the second direction, the second connection point pitch in a second direction excludes a range from 0.5×second pixel pitch×(integer−0.05) to 0.5×second pixel pitch×(integer+0.05).
3. The sensor device according to claim 1 , wherein
the first connection point pitch is defined to exclude a range from 0.5×first pixel pitch×(integer−0.1) to 0.5×first pixel pitch×(integer+0.1).
4. The sensor device according to claim 2 , wherein
the second connection point pitch is defined to exclude a range from 0.5×second pixel pitch×(integer−0.1) to 0.5×second pixel pitch×(integer+0.1).
5. The sensor device according to claim 1 , wherein
the detection electrode includes a first line fragment and a second line fragment which are tilted at different angles with respect to the first direction, the first and second line fragments arranged alternately while being connected to an adjacent fragment at ends thereof, and
the connection points arranged linearly are connection points to connect an end of the first line fragment to an end of the second line fragment.
6. The sensor device according to claim 1 , wherein
the detection electrode includes a plurality of unit patterns of which outlines are closed by the line fragments, and
the outlines of adjacent unit patterns share at least one line fragment.
7. The sensor device according to claim 1 , wherein
the detection electrode includes different kinds of unit patterns of which outlines are closed by the line fragments respectively, and
the outlines of the different kinds of unit patterns have different shapes.
8. The sensor device according to claim 1 , wherein
the detection electrode includes a plurality of unit patterns each having a polygonal shaped outline in which at least one interior angle is greater than 180°.
9. The sensor device according to claim 1 , wherein
the detection electrode includes metal layer.
10. The sensor device according to claim 1 , further comprising:
a driving electrode intersecting the detection electrode to form a capacitance between the detection electrode and the driving electrode.
11. A display device, comprising:
a plurality of pixels arranged with a first pixel pitch between two adjacent pixels in a first direction, and arranged with a second pixel pitch in a second direction intersecting the first direction; and
a detection electrode having line fragments connected at connection points with each other, the connection points being alternately arranged with a first connection point pitch between two adjacent connection points in the first direction,
wherein the first connection point pitch excludes a range from 0.5×first pixel pitchx(integer−0.05) to 0.5×first pixel pitch×(integer+0.05),
the detection electrode includes a detection line which has a zigzag shape extending in a first arrangement direction intersecting the first direction and the second direction such that all of the connection points extend along a respective line in the first arrangement direction, and
the first arrangement direction is tilted at an acute angle with respect to the first direction and the second direction.
12. The display device according to claim 11 , wherein
the connection points are alternately arranged with a second connection point pitch between two adjacent connection points in the second direction, the second connection point pitch in a second direction excludes a range from 0.5×second pixel pitch×(integer−0.05) to 0.5×second unit pitch x (integer+0.05).
13. The display device according to claim 11 , wherein
the first connection point pitch is defined to exclude a range from 0.5×first pixel pitch×(integer−0.1) to 0.5×first pixel pitch×(integer+0.1).
14. The display device according to claim 12 , wherein
the second connection point pitch is defined to exclude a range from 0.5×second pixel pitch×(integer<0.1) to 0.5×second pixel pitch×(integer+0.1).
15. The display device according to claim 11 , wherein
the detection electrode includes a first line fragment and a second line fragment which are tilted at different angles with respect to the first direction, the first and second line fragments arranged alternately while being connected to an adjacent fragment at ends thereof, and
the connection points arranged linearly are connection points to connect an end of the first line fragment to an end of the second line fragment.
16. The display device according to claim 11 , wherein
the detection electrode includes a plurality of unit patterns of which outlines are closed by the line fragments, and
the outlines of adjacent unit patterns share at least one line fragment.
17. The display device according to claim 11 , wherein
the detection electrode includes different kinds of unit patterns of which outlines are closed by the line fragments respectively, and
the outlines of the different kinds of unit patterns have different shapes.
18. The display device according to claim 11 , wherein
the detection electrode includes a plurality of unit patterns each having a polygonal shaped outline in which at least one interior angle is greater than 180°.
19. The display device according to claim 11 , wherein
the detection electrode includes metal layer.
20. The display device according to claim 11 , further comprising:
a driving electrode intersecting the detection electrode to form a capacitance between the detection electrode and the driving electrode.