Digitizer and flexible display device comprising the same
A flexible digitizer comprising a flexible substrate and a first and a second electrodes having thicknesses of 2000 Å to 1 μm is provided. The digitizer according to the present invention has sufficient flex resistance for application to a flexible display device with superior electrical characteristics and visibility.
1. A flexible digitizer comprising:
a flexible substrate;
a first electrode disposed on the flexible substrate and having a thickness of 2000 Å to 1 μm;
a first insulation layer disposed on the first electrode and having a through hole exposing the first electrode; and
a second electrode disposed on the first insulation layer to be electrically connected to the first electrode via the through hole and having a thickness of 2000 Å to 1 μm,
wherein the first and the second electrodes each have a line width of 3 to 30 μm and a line resistance of 1 kΩ or less, and
wherein the flexible digitizer is an electro-magnetic resonance (EMR) type digitizer.
2. The flexible digitizer of claim 1 , wherein the thicknesses of the first and the second electrodes are 3000 to 5000 Å.
3. The flexible digitizer of claim 1 , wherein the first and the second electrodes have line widths of 3 to 10 μm.
4. The flexible digitizer of claim 1 , wherein the first and the second electrodes are formed by sputtering.
5. The flexible digitizer of claim 1 , further comprising a second insulation layer disposed on the second electrode.
6. The flexible digitizer of claim 1 , further comprising a protective layer disposed on the flexible substrate, wherein the first electrode is disposed on the protective layer.
7. The flexible digitizer of claim 1 , wherein the total thickness of the digitizer is less than or equal to 50 μm.
8. A flexible display device comprising:
a digitizer according to claim 1 ; and
a display layer disposed under the digitizer.
9. A flexible display device comprising:
a digitizer according to claim 2 ; and
a display layer disposed under the digitizer.
10. A flexible display device comprising:
a digitizer according to claim 3 ; and
a display layer disposed under the digitizer.
11. A flexible display device comprising:
a digitizer according to claim 4 ; and
a display layer disposed under the digitizer.
12. A flexible display device comprising:
a digitizer according to claim 5 ; and
a display layer disposed under the digitizer.
13. A flexible display device comprising:
a digitizer according to claim 6 ; and
a display layer disposed under the digitizer.
14. A flexible display device comprising:
a digitizer according to claim 7 ; and
a display layer disposed under the digitizer.