A display device is provided with a backlight module, a lower polarizing plate, a liquid crystal display panel, and an upper polarizing plate. In the display device of the present disclosure, when MicroLED luminescent units are turned on, a normal display is realized within a transparent display area. At the same time, images are collected through the transparent display area anytime and then sensed by an under-screen sensor. The transparent display area and the main display area are seamlessly connected so that there is no visual display interruption and discontinuous boundary, and a complete full-screen design is achieved.