Detection device and display device

Patent metadata

Field	Value
Publication number	US-2017285802-A1
Application number	US-201715477264-A
Country	US
Kind code	A1
Filing date	Apr 3, 2017
Priority date	Apr 4, 2016
Publication date	Oct 5, 2017
Grant date	—

Abstract

A detection device includes a substrate; a plurality of first conductive thin wires provided in a plane parallel to the substrate and extending in a first direction; a plurality of second conductive thin wires provided in the same layer as that of the first conductive thin wires and extending in a second direction forming an angle with the first direction; first groups that are disposed in first strip-like regions respectively having a first width, each of the first groups including at least two of the first conductive thin wires displaced from one another in the second direction; and second groups that are disposed in second strip-like regions respectively having a second width, each of the second groups including at least two of the second conductive thin wires displaced from one another in the first direction.

First claim

What is claimed is:

1 . A detection device comprising:
a substrate; a plurality of first conductive thin wires that are provided in a plane parallel to the substrate and extend in a first direction; a plurality of second conductive thin wires that are provided in the same layer as that of the first conductive thin wires and extend in a second direction forming an angle with the first direction; first groups that are disposed in first strip-like regions respectively having a first width, each of the first groups including at least two of the first conductive thin wires displaced from one another in the second direction; and second groups that are disposed in second strip-like regions respectively having a second width, each of the second groups including at least two of the second conductive thin wires displaced from one another in the first direction, wherein the first conductive thin wires are in contact with the second conductive thin wires in intersection regions between the first strip-like regions and the second strip-like regions.

2 . The detection device according to claim 1 , wherein each of the intersection regions between the first strip-like regions and the second strip-like regions includes two coupling parts where the first conductive thin wires are in contact with the second conductive thin wires.

3 . The detection device according to claim 1 , further comprising a plurality of coupling parts where the first conductive thin wires are in contact with the second conductive thin wires, and one of the first conductive thin wires or one of the second conductive thin wires located between two of the coupling parts has a slit.

4 . The detection device according to claim 1 , wherein one mesh surrounded by the first conductive thin wires and the second conductive thin wires has a parallelogram shape.

5 . The detection device according to claim 1 , wherein
when a first reference line denotes a straight line that bisects each of the first strip-like regions in a width direction thereof, and a second reference line denotes a straight line that bisects each of the second strip-like regions in a width direction thereof, a length of each of the first conductive thin wires is equal to or larger than a difference between twice a length between the adjacent second reference lines and the second width of the second strip-like region, and is equal to or smaller than a sum of twice the length between the adjacent second reference lines and the second width of the second strip-like region, and a length of each of the second conductive thin wires is equal to or larger than a difference between twice a length between the adjacent first reference lines and the first width of the first strip-like region, and is equal to or smaller than a sum of twice the length between the adjacent first reference lines and the first width of the first strip-like region.

6 . The detection device according to claim 1 , wherein
the first conductive thin wires include first main thin wires disposed in a first main strip-like region having the first width and first auxiliary thin wires disposed in a first auxiliary strip-like region having the first width, the second conductive thin wires include second main thin wires disposed in a second main strip-like region having the second width and second auxiliary thin wires disposed in a second auxiliary strip-like region having the second width, each of the first main thin wires is in contact with two of the second main thin wires and two of the second auxiliary thin wires, each of the first auxiliary thin wires is in contact with two of the second main thin wires, each of the second main thin wires is in contact with one of the first main thin wires and one of the first auxiliary thin wires, and each of the second auxiliary thin wires is in contact with two of the first main thin wires.

7 . The detection device according to claim 1 , further comprising:
a plurality of third conductive thin wires that are provided in the same layer as that of the first conductive thin wires and extend in a third direction forming angles with the first direction and the second direction; and third groups that are disposed in third strip-like regions respectively having a third width, each of the third groups including at least two of the third conductive thin wires displaced from one another in a direction orthogonal to the third direction, wherein the first conductive thin wires, the second conductive thin wires, and the third conductive thin wires are in contact with one another in intersection regions among the first strip-like regions, the second strip-like regions, and the third strip-like regions.

8 . The detection device according to claim 1 , wherein
each of the first strip-like regions includes a first right region and a first left region separated by a first reference line, wherein the first reference line bisects the first strip-like region in the second direction, in each of the first strip-like regions, the first conductive thin wires disposed in the first right region and the first conductive thin wires disposed in the first left region are alternately arranged along the first direction, each of the second strip-like regions includes a second right region and a second left region separated by a second reference line, wherein the second reference line bisects the second strip-like region in the first direction, and in each of the second strip-like regions, the second conductive thin wires disposed in the second right region and the second conductive thin wires disposed in the second left region are alternately arranged along the second direction.

9 . A display device comprising;
a detection device; and a display region, wherein the detection device comprises:
a substrate;
a plurality of first conductive thin wires that are provided in a plane parallel to the substrate and extend in a first direction;
a plurality of second conductive thin wires that are provided in the same layer as that of the first conductive thin wires and extend in a second direction forming an angle with the first direction;
first groups that are disposed in first strip-like regions respectively having a first width, each of the first groups including at least two of the first conductive thin wires displaced from one another in the second direction; and
second groups that are disposed in second strip-like regions respectively having a second width, each of the second groups including at least two of the second conductive thin wires displaced from one another in the first direction, wherein
the first conductive thin wires are in contact with the second conductive thin wires in intersection regions between the first strip-like regions and the second strip-like regions, and the first conductive thin wires and the second conductive thin wire are provided in an area overlapping the display region.

10 . The display device according to claim 9 , wherein each of the intersection regions between the first strip-like regions and the second strip-like regions includes two coupling parts where the first conductive thin wires are in contact with the second conductive thin wires.

11 . The display device according to claim 9 , further comprising a plurality of coupling parts where the first conductive thin wires are in contact with the second conductive thin wires, and one of the first conductive thin wires or one of the second conductive thin wires located between two of the coupling parts has a slit.

12 . The display device according to claim 9 , wherein one mesh surrounded by the first conductive thin wires and the second conductive thin wires has a pa

Assignees

• Japan Display Inc

Inventors

• Ishizaki Koji
• Kurasawa Hayato

Classifications

• G06F2203/04111

  Cross over in capacitive digitiser, i.e. details of structures for connecting electrodes of the sensing pattern where the connections cross each other, e.g. bridge structures comprising an insulating layer, or vias through substrate · CPC title

• G06F2203/04112

  Electrode mesh in capacitive digitiser: electrode for touch sensing is formed of a mesh of very fine, normally metallic, interconnected lines that are almost invisible to see. This provides a quite large but transparent electrode surface, without need for ITO or similar transparent conductive material · CPC title

• G06F2203/04108

  Touchless 2D- digitiser, i.e. digitiser detecting the X/Y position of the input means, finger or stylus, also when it does not touch, but is proximate to the digitiser's interaction surface without distance measurement in the Z direction · CPC title

• G06F3/044 Primary

  by capacitive means · CPC title

• G06F3/0446

  using a grid-like structure of electrodes in at least two directions, e.g. using row and column electrodes · CPC title