Patent ID: 7167152

Claim:
An optoelectronic-device substrate, comprising: a common electrode applied with a fixed potential; a pixel electrode; a storage unit for storing pixel data; a phase-inversion circuit that outputs a phase-inversion signal for inverting a phase of pixel data from the storage unit; a first switch that generates a data-inversion signal by switching between output of a ground voltage and a different voltage output from the storage unit in accordance with the phase-inversion signal, the data-inversion signal being a signal that inverts signal phase of display data between a positive potential and a negative potential; and a second switch for switching between the data-inversion signal from the first switch and a zero-data signal that indicates that a potential equivalent to the fixed potential applied to the common electrode should be applied to the pixel electrode, the second switch selecting the data-inversion signal when pixel data is stored in the storage unit, and the zero-data signal when pixel data is not stored in the storage unit, the selected one of the data-inversion signal and the zero-data signal being transmitted to the pixel electrode.