Touch panel and a wireless input apparatus and mobile terminal including touch panel
There is disclosed a touch panel, a mobile terminal and a wireless input apparatus applied to the touch panel and the mobile terminal and the touch panel includes a cover unit having a touchable front surface and a rear surface opposite to the front surface, a touch sensing unit provided under the back surface to sense a preset touch signal, and magnetic field generation unit provided under edges of the touch sensing unit to generate a magnetic field.
1. A mobile terminal comprising:
a touch panel comprising a magnetic field generation unit and a touch sensing unit,
wherein the magnetic field generation unit comprises a loop coil which is provided in an edge of the touch panel, and the magnetic field generation unit is configured to generate a wireless power using a magnetic field with a specific resonance frequency, and provide the wireless power to a wireless input apparatus,
wherein the touch sensing unit is configured to sense a signal output from the wireless input apparatus; and
a controller configured to:
receive a charging-related information from the wireless input apparatus,
determine whether to transmit the wireless power to the wireless input apparatus through the magnetic field generation unit based on the received charging-related information, and
control the magnetic field generation unit to transmit the wireless power having the specific resonance frequency,
wherein the touch sensing unit comprises an electrode unit located in a first sensing region and a trace unit located in a second sensing region,
wherein the second sensing region locates outside the first sensing region,
wherein the loop coil senses a touch signal together with the electrode unit, and
wherein the loop coil is used as a transmission electrode and the electrode unit located in the first sensing region is used as a reception electrode.
2. The mobile terminal of claim 1 , wherein the magnetic field generation unit is provided under an edge of the touch sensing unit.
3. The mobile terminal of claim 1 , wherein the controller determines presence of contact between the touch panel and the wireless input apparatus, and a pressure applied to a front end of the wireless input apparatus based on an interval of the sensed signal.
4. The mobile terminal of claim 1 , wherein the controller determines a location of the wireless input apparatus on the touch panel, using a size of the sensed signal.
5. The mobile terminal of claim 1 , wherein the electrode unit comprises a first electrode unit having a first pattern and a second electrode unit having a second pattern.
6. The mobile terminal of claim 5 , wherein the trace unit comprises a first trace unit connected to the first electrode unit and a second trace unit.