Touch sensor and touch panel with touch electrodes and insulating layer
A touch sensor includes a glass substrate having a touch surface and a first touch electrode formed of a fine metal wire formed on a surface of the glass substrate opposite to the touch surface, the glass substrate contains an Si atom, an Al atom, and a K atom, a content of the Si atom is 25.0% to 35.0% by mass with respect to the total mass of the glass substrate, a content of the Al atom is 5.0% to 16.0% by mass with respect to the total mass of the glass substrate, and a content of the K atom is 3.0% to 10.0% by mass with respect to the total mass of the glass substrate.
1. A touch sensor comprising:
a glass substrate having a touch surface;
a first touch electrode formed of a fine metal wire formed on a surface of the glass substrate opposite to the touch surface;
a second organic insulating layer provided on the first touch electrode; and
a second touch electrode formed of a fine metal wire and provided on the second organic insulating layer,
wherein the fine metal wire of the first touch electrode forms a mesh shape,
wherein the fine metal wire of the second touch electrode forms a mesh shape,
wherein the second organic insulating layer has a thickness of 1 to 10 μm, and
wherein the glass substrate contains an Si atom, an Al atom, and a K atom,
a content of the Si atom is 25.0% to 35.0% by mass with respect to a total mass of the glass substrate,
a content of the Al atom is 5.0% to 16.0% by mass with respect to the total mass of the glass substrate, and
a content of the K atom is 3.0% to 10.0% by mass with respect to the total mass of the glass substrate.
2. The touch sensor according to claim 1 ,
wherein the content of the Si atom is 28.0% to 33.0% by mass with respect to the total mass of the glass substrate,
the content of the Al atom is 7.0% to 10.0% by mass with respect to the total mass of the glass substrate, and
the content of the K atom is 6.0% to 9.0% by mass with respect to the total mass of the glass substrate.
3. The touch sensor according to claim 1 , further comprising a first organic insulating layer having a relative dielectric constant of 3.0 or more between the glass substrate and the first touch electrode.
4. The touch sensor according to claim 3 ,
wherein the first organic insulating layer is non-pressure-sensitive adhesive and has a thickness of 1 to 20 μm.
5. The touch sensor according to claim 1 ,
wherein a mesh pitch of the fine metal wire of the first touch electrode is 400 to 1,200 μm.
6. The touch sensor according to claim 1 ,
wherein the second organic insulating layer is formed of an epoxy resin or an acrylic resin.
7. The touch sensor according to claim 1 ,
wherein a mesh pitch of the fine metal wire of the second touch electrode is 400 to 1,200 μm.
8. A touch panel comprising the touch sensor according to claim 1 .
9. The touch sensor according to claim 2 , further comprising a first organic insulating layer having a relative dielectric constant of 3.0 or more between the glass substrate and the first touch electrode.
10. The touch sensor according to claim 9 ,
wherein the fine metal wire of the first touch electrode forms a mesh shape and a mesh pitch is 400 to 1,200 μm, and
the fine metal wire of the second touch electrode forms a mesh shape and a mesh pitch is 400 to 1,200 μm.
11. The touch sensor according to claim 10 ,
wherein the first organic insulating layer is non-pressure-sensitive adhesive and has a thickness of 1 to 20 μm.
12. The touch sensor according to claim 11 ,
wherein the second organic insulating layer is formed of an epoxy resin or an acrylic resin.
13. A touch panel comprising the touch sensor according to claim 10 .
14. A touch panel comprising the touch sensor according to claim 12 .
15. The touch sensor according to claim 1 ,
wherein the fine metal wire of the first touch electrode is formed from a laminate including Mo.
16. The touch sensor according to claim 15 ,
wherein the fine metal wire of the second touch electrode is formed from a laminate including Mo.