Touch sensor-antenna module and display device including the same
A touch sensor-antenna module according to exemplary embodiments of the present invention includes a substrate layer, a touch sensor electrode layer disposed on a central portion of an upper surface of the substrate layer, and antenna patterns disposed on a peripheral portion of the upper surface of the substrate layer at the same level as that of the touch sensor electrode layer. Mutual interference between the touch sensor electrode layer and the antenna pattern may be reduced to improve signal reliability and process efficiency.
1. A touch sensor-antenna module, comprising:
a substrate layer having an active region and a peripheral portion;
a touch sensor electrode layer disposed on the active region of an upper surface of the substrate layer, the touch sensor electrode layer comprising sensing electrodes that comprises first sensing electrodes arranged in a row direction and second sensing electrodes arranged in a column direction;
a connecting portion disposed on the active region of the upper surface of the substrate layer to electrically connect first sensing electrodes neighboring in the row direction to each other of the first sensing electrodes;
a bridge electrode disposed on the active region of the upper surface of the substrate layer to electrically connect second sensing electrodes neighboring in the column direction to each other of the second sensing electrodes; and
antenna patterns partially disposed on the active region of the upper surface of the substrate layer at a same level as that of the touch sensor electrode layer, and arranged to avoid the sensing electrodes, the connecting portion and the bridge electrode in a plan view.
2. The touch sensor-antenna module according to claim 1 , wherein the touch sensor electrode layer includes traces electrically connected to the sensing electrodes.
3. The touch sensor-antenna module according to claim 2 , wherein the antennal patterns are arranged in a partial region of the peripheral portion except for a region for arranging the traces.
4. The touch sensor-antenna module according to claim 1 ,
wherein a first sensing unit is defined by a pair of the first sensing electrodes neighboring each other and a pair of the second sensing electrodes neighboring each other.
5. The touch sensor-antenna module according to claim 4 , wherein at least one sensing electrode is omitted from the first sensing unit located in a peripheral region of the active region to define a second sensing unit,
wherein at least one of the antenna patterns is disposed in a space from which at least one sensing electrode is omitted in the second sensing unit.
6. The touch sensor-antenna module according to claim 1 , wherein each of the traces extends from each of the sensing electrodes, and the traces are disposed on the active region of the substrate layer together with the sensing electrodes.
7. The touch sensor-antenna module according to claim 1 , wherein the antenna patterns and the sensing electrodes include a same mesh structure.
8. The touch sensor-antenna module according to claim 1 , wherein the antenna pattern includes a radiation electrode, a pad and a transmission line that electrically connects the radiation electrode and the pad.
9. The touch sensor-antenna module according to claim 8 , wherein the pad includes a signal pad and a ground pad that is spaced apart from the signal pad and electrically separated from the transmission line.
10. The touch sensor-antenna module according to claim 9 , wherein a pair of the ground pads are disposed to face each other with respect to the signal pad.
11. The touch sensor-antenna module according to claim 1 , wherein the substrate layer serves as a dielectric layer of the antenna patterns.
12. The touch sensor-antenna module according to claim 1 , further comprising a ground layer on a lower surface of the substrate layer.
13. A display device including the touch sensor-antenna module according to claim 1 .