Scan needle and scan display system including same

A scan display system, comprising:

• a scan needle;
• and
• a picture display screen having first and second opposing surfaces,
• wherein the scan needle includes:
• a substrate;
• and
• only one first color light emitting pixel array formed on the substrate and comprising a plurality of first color light emitting pixels;
• only one second color light emitting pixel array formed on the substrate and comprising a plurality of second color light emitting pixels;
• and
• only one third color light emitting pixel array formed on the substrate and comprising a plurality of third color light emitting pixels,
• wherein, the first color light emitting pixel array is parallel to the second color light emitting pixel array, and the second color light emitting pixel array is parallel to the third color light emitting pixel array, and
• the first color light emitting pixel array, the second color light emitting pixel array, and the third color light emitting pixel array extend in a horizontal direction,
• wherein the scan needle is configured to emit light to the picture display screen to project image portions onto the picture display screen, each image portion being formed by the scan needle, and the image portions together forming an image to be displayed on the picture display screen,
• wherein each of the first color light emitting pixel comprises a first segment of a first metal layer and a first segment of a first color light emitting layer, stacked in an order on the substrate,
• each of the second color light emitting pixel comprises a second segment of the first metal layer, a second segment of the first color light emitting layer, a first segment of a second metal layer, and a first segment of a second color light emitting layer, stacked in an order on the substrate, and at least one first electrical connector electrically connecting the second segment of the first metal layer and the first segment of the second metal layer, and
• each of the third color light emitting pixel comprises a third segment of the first metal layer, a third segment of the first color light emitting layer, a second segment of the second metal layer, a second segment of the second color light emitting layer, a third metal layer, and a third color light emitting layer, stacked in an order on the substrate, and at least one second electrical connector electrically connecting the third segment of the first metal layer, the second segment of the second metal layer, and the third metal layer.