A spatial light modulation device capable of displaying a large number of gray scales is provided. The inventors of the present invention proposed a spatial light modulation device having: a first structure in which a switching transistor and an erasure transistor, each having its gate electrode connected to a different scanning line, are formed in each pixel, and whose switching is controlled separately; or a second structure in which two switching transistors, each having its gate electrode connected to a different scanning line, are formed in each pixel, and whose switching is controlled separately.

 
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> MEMBER TO BE RECOGNIZED FOR ALIGNMENT; HEAD UNIT AND ELECTRONIC DEVICE PROVIDED THEREWITH; METHOD OF MANUFACTURING LCD, ORGANIC EL DEVICE, ELECTRON EMISSION DEVICE, PDP DEVICE, ELECTROPHORETIC DISPLAY DEVICE, COLOR FILTER, AND ORGANIC EL; METHOD OF FORMING SPACER, METALLIC WIRE, LENS, RESIST, AND LIGHT DIFFUSION MEMBER, EACH OF SAID METHODS USING SAID HEAD UNIT

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