Touch panel
A touch panel includes a touch electrode disposed on a substrate, the touch electrode including a metal layer; a phase matching layer disposed on the metal layer; and a thin film layer disposed on the phase matching layer.
1. A touch panel, comprising:
a touch electrode disposed on a substrate, the touch electrode comprising:
a metal layer;
a phase matching layer disposed on the metal layer, the phase matching layer comprising aluminum oxide and having a thickness in a range of about 500 to 750 Å; and
a thin film layer disposed on the phase matching layer;
an insulating layer comprising silicon nitride disposed on the touch electrode; and
a reflective reduction layer comprising a silicon oxynitride disposed on the insulating layer,
wherein the reflectance of the touch electrode is less than or equal to 3.7%.
2. The touch panel of claim 1 , wherein the phase matching layer and the thin film layer are configured to cause a destructive interference between light reflected from the metal layer and light reflected from the thin film layer.
3. The touch panel of claim 1 , wherein the metal layer comprises an aluminum-based metal.
4. The touch panel of claim 3 , wherein the metal layer has a thickness in a range of about 300 to 4000 Å.
5. The touch panel of claim 3 , wherein the phase matching layer is optically transparent.
6. The touch panel of claim 1 , wherein the thin film layer comprises a metal.
7. The touch panel of claim 6 , wherein the metal of the thin film layer comprises titanium or molybdenum.
8. The touch panel of claim 6 , wherein the thin film layer has a thickness in a range of about 50 to 200 Å.
9. The touch panel of claim 1 , wherein the insulating layer has a thickness in a range of about 1000 to 4000 Å.
10. The touch panel of claim 1 , wherein the reflective reduction layer has a thickness in a range of about 500 to 1000 Å.
11. The touch panel of claim 1 , further comprising:
an insulating layer comprising an organic material disposed on the touch electrode.
12. The touch panel of claim 11 , wherein the insulating layer has a thickness in a range of about 1 to 3 μm.
13. The touch panel of claim 1 , wherein the touch electrode comprises a mesh pattern.
14. The touch panel of claim 1 , further comprising:
a display panel configured to display an image.
15. The touch panel of claim 14 , further comprising:
a polarizer disposed between the touch electrode and the display panel.
16. The touch panel of claim 15 , wherein the substrate on which the touch electrode is disposed is disposed on the polarizer.