Abstract: A display device includes a TFT substrate layer, a display material layer, a common electrode layer, a touch electrode layer, a display control circuit and a touch control circuit. The common electrode layer has a common electrode. The touch electrode layer includes plural first touch electrodes and plural second touch electrodes. The display control circuit includes a display power. The touch control circuit includes a touch power independent to the display power. The touch control circuit sequentially or randomly couples a touch stimulation signal to a selected first touch electrode or receives a touch sense signal from a selected second touch electrode. The touch sense signal is driven and coupled to the common electrode layer or a node of the display control circuit for performing a touch detection operation in which there is no current loop between the display control circuit and the touch control circuit.