A display device and a display method using the display device are provided. The display device includes a display panel and a driving circuit. The display panel includes a first number of pixel rows, a second number of scanning lines, and the first number of data lines. The driving circuit includes a scanning driver and a data driver. The data driver utilizes partial pixel rows reversed way during a predetermined timing circle to drive the display panel via data driving signals for displaying images frame by frame. The present disclosure may decrease power consumption of the display device.