Light valve device

A light valve device comprising:

• a composite substrate comprising a semiconductor monocrystalline thin film mounted on an electrically insulating substrate, the monocrystalline thin film comprising a thinned single crystal semiconductor wafer;
• a second substrate opposed to and spaced from the composite substrate;
• an electrooptic material interposed between the composite substrate and the second substrate;
• a pixel section and a driving circuit section each being formed on the composite substrate, the driving circuit section being formed in the semiconductor monocrystalline thin film and the pixel section including an X electrode group, a Y electrode group crossing the X electrode group, and a thin film transistor formed in the monocrystalline thin film and a pixel electrode both disposed proximate each intersection of respective X electrodes and Y electrodes;
• wherein the driving circuit section comprises an X electrode driving circuit for supplying display data signals to the X electrode group, a Y electrode driving circuit for supplying scanning signals to the Y electrode group, a control circuit for supplying timing signals to the X electrode driving circuit and the Y electrode driving circuit, and a display data generating circuit for generating display data signals in accordance with an input image signal and for supplying the display data signals to the X electrode driving circuit;
• wherein the electrooptic material becomes excited when the display data signals and the scanning signals selectively energize the pixel electrodes by activation of respective thin film transistors;
• and wherein the display data generating circuit comprises an RGB conversion circuit and a synchronization separation circuit, wherein the RGB conversion circuit is operable to receive the input image signal and to output RGB display signals to the X electrode driving circuit, and the synchronization separation circuit is operative to provide synchronization signals to the control circuit.