Fault tolerant projective display having redundant light modulators

摘要

The display system includes a light source (350) and a display surface. A two dimensional light modulator array (342) is arranged in the optical path between the light source and the display surface. The light modulator array includes several light modulators arranged in rows to modulate light from the light source. A redundant light modulator array (385) having several light modulators arranged in rows modulates the light from the light source. A mirror (370) is positioned to selectively direct light incident on the redundant array towards the display surface to substitute for a failed row of light modulators in the two dimensional array.