1. Technical Field
The present disclosure generally relates to a touch device, and more particularly to a touch device and a driving method of a touch panel thereof.
2. Related Art
With developing of technology, most electronic devices, such notebooks, cell phones, portable multimedia players, and so on, usually have touch panels as the new generation input interfaces to replace the traditional keyboards. The touch panels can be categorized into the resistive touch panels, the capacitive touch panels, the infrared light touch panels, and the supersonic touch panels, wherein resistive touch panels and the capacitive touch panels are most common products. In generally, when the touch panels operate, the touch panels scan the whole touch area thereof to sense the touch points.
For the projected capacitive touch panel, the larger the size of the panel is, the more the number of the sensors is, and the longer the time which the touch panel scans once is. In some condition, the user may not touch the whole touch area of the touch panel when the touch panel is used. Furthermore, assuming the touch panel is applied in the people interacting education system or the public system under the condition that the whole touch area of the touch panel is available, when user operates the touch panel, the user may be interfered by the operation of the other user, or may interfere the operation of the other user. To maintain the whole touch area of the touch area available not only decreases the efficiency, but also introduces interference.