Patent ID: 8319744

Claim:
A multi-touch resistive touch panel, comprising: a first substrate having a first transparent electrode, two first conductive electrodes and two second conductive electrodes, wherein the two first conductive electrodes are disposed at two boundaries of the first transparent electrode, and the two second conductive electrodes are disposed at another two boundaries of the first transparent electrode and are perpendicular to the two first conductive electrodes; a second substrate having a plurality of second transparent electrodes, wherein the second transparent electrodes are disposed on a surface of the second substrate facing the first transparent electrode and arranged in a first axial direction, and the second transparent electrodes themselves are extended in a second axial direction perpendicular to the first axial direction; a spacing element disposed between the first substrate and the second substrate; and a control module connected to the first substrate and the second substrate, whereby in a multi-touch mode, the control module drives the two first conductive electrodes or the two second conductive electrodes as a first signal detecting end, determines the positions in the first axial direction according to the contact positions between the second transparent electrodes and the control module, and determines the positions in the second axial direction by detecting the resistances at multiple touch ends of the second transparent electrodes; and in a single-touch mode, the control module enables the second transparent electrodes to be serially connected as a second signal detecting end, and further alternately drives the two first conductive electrodes and the two second conductive electrodes to form electric fields of two different directions so as to obtain the position, wherein the control module comprises: a determination unit, determining whether the touch panel is in the single-touch mode or the multi-touch mode; a switching unit, driving of the two first conductive electrodes or the two second conductive electrodes as the first signal detecting end in the multi-touch mode; a voltage output unit, providing a voltage to the second transparent electrodes in the multi-touch mode; a storage unit, storing a plurality of data of predetermined resistances for the multi-touch mode; a processing unit, determining the positions in the first axial direction according to the contact positions on the second transparent electrodes which generate signals in the multi-touch mode, determining the positions in the second axial direction according to the relationships between the resistances at the touch ends of the second transparent electrodes and the predetermined resistances; and a register unit, sequentially storing the position data of the touch points in the multi-touch mode.