Driving method for spatial light modulator and projection display system

摘要

A driving method for a spatial light modulator can provide bright image, images of high contrast and resolution with no persistence and instability, and can be used in a projection display system. The spatial light modulator is prepared by sandwiching a ferroelectric liquid crystal layer 105 between a first substrate and a second substrate. The first substrate is prepared by sequentially laminating a transparent conductive electrode 102 and a photoconductive layer with rectifying properties 103 on a glass substrate 101. On the photoconductive layer 103, a reflective layer 104 and an alignment layer 106 for aligning a liquid crystal layer 105 are then laminated. The second substrate is prepared by laminating a transparent conductive electrode 107 and an alignment layer 108 on a glass substrate 109. Alternating current voltage having a waveform of inconsistent cycles is applied to a section between the transparent conductive electrodes102, 107. <IMAGE>