An exemplary display device (10) includes a display module (11), a frame (12), a porous metallic material member (13), and a transparent protection plate (14). The frame has a receiving cavity (121). The display module is confined in the receiving cavity of the frame. The transparent protection plate is configured in front of the light output side of the display module. The porous metallic material member is located between the front surface (122) of the frame and the transparent protection plate. The display device can prevent fogs forming on the transparent protection plate for maintaining a clear display.