Address generator for display and light modulator including a reconfigurable shift register

摘要

A spatial light modulator or display comprises pixels (1011 to 10mn), for instance arranged as an active matrix. Addressing the pixels (1011 to 10mn) is controlled by shift registers (12, 24) which are configurable so as to vary the effective resolution of the display. Each shift register (12, 24) comprises a plurality of stages (131 to 13m, 231 to 23n) which are controlled to operate normally or as "followers", in which latter mode the stage output follows the output of the preceding stage. <IMAGE>