Abstract: A projected capacitive touch panel comprises a triangle waveform generator, a plurality of analog switches, a plurality of sample and hold circuits. In addition, it also comprises a single conductive layer and flexible printed connectors. The single conductive layer is made of many sensing lines with high resistance. A triangle waveform is generated by the triangle waveform generator. The triangle waveform is transmitted to the sensing lines via the plurality of analog switches. In a rising stage, the plurality of sample and hold circuits are in their hold state. In a declining stage, the sample and hold circuits are in their sample state. The sample and hold circuit collects voltage deviation depending on resistance deviation on a sensing line. And higher resistance deviation can induce higher deviation voltage in the sensing line.