Patent ID: 8274490

Claim:
A touch panel comprising: a touch layer; a first Indium Tin Oxide (ITO) electrode layer disposed below the touch layer, wherein the first ITO electrode layer comprises a plurality of first ITO electrodes; a second ITO electrode layer comprising a plurality of second ITO electrodes, wherein each of the first ITO electrodes corresponds to one second ITO electrode, each of the first ITO electrodes and the corresponding second ITO electrode form an electrode unit; and a microcapsule layer comprising a plurality of microcapsules, wherein each of the microcapsules is electrically connected to the first ITO electrode and the second ITO electrode in one electrode unit, and each of the microcapsules comprises a plurality of positively charged particles and a plurality of negatively charged particles; wherein when no touch is exerted on the touch layer, the positively and negatively charged particles in the microcapsule is in a uniform state; and when the touch panel is touched by users, the distribution of the positively and negatively charged particles in the microcapsule corresponding to the touch portion of the touch layer is placed in a polarization state, thus a voltage difference across the electrode unit connected to the microcapsule is generated.