The invention disclosure a full-in-cell touch screen panel and a mobile device including a plurality of the sensor pads arranged in a matrix, a plurality of data lines arranged along the row direction of the matrix, a data driving device connected to the data lines and a plurality of transistors formed on the data line, wherein each transistor of the plurality of the transistors is formed in each of the data line, the drain electrode of each transistor is connected to the corresponding data line, the gate electrodes of all of the plurality of the transistors are all connected to the specific enable terminal of the data driving device. According to the full-in-cell touch screen panel and its display apparatus, the electric charge coupled to the liquid crystal in the touch scanning period can be released.