Flexible touch panel and method for manufacturing flexible touch panel
A flexible touch panel includes a touch sensor unit disposed on a flexible substrate. The flexible touch panel includes a transparent conductive layer, a first transparent conductive oxide layer, and a second transparent conductive oxide layer that are sequentially deposited and sequentially contact each other.
1. A flexible touch panel comprising:
a flexible substrate; and
a touch sensor unit disposed on the flexible substrate and comprising a transparent conductive metal layer, a first transparent conductive oxide layer, and a second transparent conductive oxide layer that are sequentially deposited and sequentially contact each other,
wherein the touch sensor unit comprises:
a plurality of first sensing electrodes disposed on the flexible substrate and respectively separated in a first direction;
a first connection portion disposed between and connecting the plurality of first sensing electrodes;
a plurality of second sensing electrodes disposed on the flexible substrate and respectively separated in a second direction crossing the first direction; and
a second connection portion separated from the first connection portion via an insulating layer, the second connection portion disposed between and connecting the plurality of second sensing electrodes, and wherein:
the first sensing electrodes and the second sensing electrodes respectively comprise the transparent conductive metal layer, the first transparent conductive oxide layer, and the second transparent conductive oxide layer,
the first connection portion consists of the transparent conductive metal layer and the first transparent conductive oxide layer, and
the second connection portion consists of the second transparent conductive oxide layer.
2. The flexible touch panel of claim 1 , wherein the transparent conductive metal layer comprises at least one of a metal mesh, a silver nanowire (AgNW), and a copper nanowire (CuNW).
3. The flexible touch panel of claim 1 , wherein the first sensing electrodes and the first connection portion are integrally formed.
4. The flexible touch panel of claim 3 , wherein the second sensing electrodes are disposed in the same layer as the first sensing electrodes.
5. The flexible touch panel of claim 1 , wherein the second transparent conductive oxide layer covers the entire first transparent conductive oxide layer.
6. The flexible touch panel of claim 1 , wherein the second transparent conductive oxide layer covers at least about 50% of the first transparent conductive oxide layer.
7. The flexible touch panel of claim 1 , wherein the second transparent conductive oxide layer of the second connection portion is integrally formed with the second transparent conductive oxide layer of the second sensing electrodes.
8. The flexible touch panel of claim 1 , wherein the second connection portion extends in a direction crossing a direction in which the flexible substrate is configured to bend.
9. The flexible touch panel of claim 1 , further comprising a wiring portion comprising a metal layer connected to the touch sensor unit and disposed on the transparent conductive metal layer and the first transparent conductive oxide layer.