AMPLITUDE AND PHASE CODING MEASUREMENTS OF A LIQUID-CRYSTAL TELEVISION

Presented are amplitude and phase coding, and flicker measurements of liquid crystal panels from the commercially available Epson video proj ector, for configurations maximizing the contrast. For laser illuminat ion it is found that a contrast as high as 1000 can be achieved, while for white light illumination it is reduced to a still acceptable valu e of about 60. However it appears that the flicker should be a more li miting factor in practical situations. It is also observed that amplit ude and phase modulation are always coupled.