Tile row pixel shift in a tiled display system

摘要

The display of a portion of an image in successive rows of display tiles in a tiled display system are delayed, so that the top portion of a first display tile is illuminated immediately after the bottom portion of a second display tile is illuminated, where the second display tile is adjacent to and above the first display tile. This removes the appearance of a broken up image when the image moves across the display tiles in a direction somewhat parallel to the direction of raster scanning. In this way, a raster scanning tiled display system does not produce a stair-step effect even though the top and bottom portion of an image on a tile in the tiled display system is raster-scanned at different times.

主权项

1. A method of producing an image on a multi-tiled scanning system, the method comprising:
in a first display tile, scanning a light source in a scanning direction across a first portion of the first display tile disposed at a first edge of the first display tile to produce a first portion of the image in the first display tile; after scanning the first portion, scanning a light source across a second portion of the first display tile that is disposed at a second edge of the first display tile to produce a second portion of the image in the first display tile, wherein the second edge is positioned opposite the first edge; and after scanning the first portion, begin a scan in second display tile by scanning a light source across a portion of the second display tile disposed at a first edge of the second display tile to produce a portion of the image in the second display tile, where the second display tile is at a location perpendicular to the scanning direction, wherein the first edge of the second display tile is adjacent to the second edge of the first display tile, and wherein scanning the light source across the portion of the second display tile begins immediately after a selected time delay with respect to scanning the first portion, the selected time delay being substantially equal to the duration of time between beginning scanning the first portion of the first display tile and completing scanning the second portion of the first display tile.