A scan display system includes a picture receiving unit, a scan needle, a picture display screen having first and second opposing surfaces, a projecting unit, and a driving unit. The picture receiving unit is configured to receive picture data and transmit the picture data to the scan needle. The scan needle is configured to emit light representative of the picture data. The projecting unit is configured to project the light emitted from the scan needle to the first surface of the picture display screen. The driving unit is configured to perform a picture scanning process to form a plurality of image lines. The picture display screen is configured to receive the projected light on the first surface and display an image comprising the image lines on the second surface.