A display device and a method for operating a display device is provided. The display device includes a display panel, a photosensitive image sensor, and a pressure sensing sensor. The display panel includes a display area and has a display side and a back side opposite to the display side. The photosensitive image sensor and the pressure sensing sensor are stacked in the display area of the display panel and are located on the back side of the display panel. The pressure sensing sensor is configured to sense a pressing action on the display side of the display panel. The photosensitive image sensor is configured to detect an image of a texture on the display side of the display panel.