Touch screen panel and fabrication method thereof
A touch screen panel includes first and second sense cells on a same layer and coupling patterns that couple adjacent ones of the first sense cells and adjacent ones of the second sense cells to each other, respectively. The coupling patterns do not cross with each other, thereby improving the ability of the coupling patterns to withstand static electricity. A dummy line formed of a same material as the sense cells may be formed between the first and second sense cells, and the dummy line is electrically coupled to a guard ring located in an area outside of a display area of the touch screen panel, making it possible to overcome the effects of static electricity applied to the front surface of the touch screen panel as well as the side surface thereof.
1. A touch screen panel comprising:
a substrate;
a first connection pattern on the substrate;
a second connection pattern on the substrate;
a third connection pattern on the substrate;
a dielectric layer covering the first connection pattern and the second connection pattern on the substrate, the dielectric layer comprising contact holes corresponding to end portions of the first connection pattern and the second connection pattern;
a first sensing cell on the dielectric layer;
a second sensing cell on the dielectric layer;
a third sensing cell on the dielectric layer; and
a fourth sensing cell on the dielectric layer,
wherein the first sensing cell and the second sensing cell are arranged in a first direction,
wherein the third sensing cell and the fourth sensing cell are arranged in a second direction,
wherein the first sensing cell is electrically connected to the second sensing cell by the first connection pattern and the second connection pattern at which the first connection pattern and the second connection pattern are exposed by the contact holes,
wherein the third sensing cell is electrically connected to the fourth sensing cell by the third connection pattern,
wherein a portion of the first connection pattern is inclined at a first angle with respect to the first direction, and
wherein a portion of the second connection pattern is inclined at a second angle different from the first angle with respect to the first direction.
2. The touch screen panel of claim 1 , further comprising a dummy pattern on the dielectric layer,
wherein the dummy pattern is on a same layer as the first sensing cell, the second sensing cell, the third sensing cell, and the fourth sensing cell.
3. The touch screen panel as claimed in claim 2 , further comprising a plurality of metal patterns on the substrate,
wherein the metal patterns are electrically coupled to at least one of the first sensing cell, the second sensing cell, the third sensing cell and the fourth sensing cell,
wherein the metal patterns are in a peripheral region of a display area of the substrate, and
wherein the first connection pattern, the second connection pattern, and the metal patterns are formed in a same layer.
4. The touch screen panel as claimed in claim 3 , further comprising a guard ring on a same layer as the first connection pattern and the metal patterns, the guard ring being in a peripheral region.
5. The touch screen panel as claimed in claim 4 , wherein a ground voltage is applied to the guard ring.
6. The touch screen panel as claimed in claim 2 , wherein a ground voltage is applied to the dummy pattern.