A dynamic-voltage-control pixel includes a pixel memory, an input circuit operable at a refresh voltage to receive pixel data and store the received pixel data in the pixel memory, a light emitter, and an output circuit operable at a drive voltage to read the stored pixel data from the pixel memory and control the light emitter to output light according to the read stored pixel data. The drive voltage can be less than the refresh voltage. The input circuit, pixel memory, and output circuit can be connected to a common-voltage wire providing a common voltage for operating each of the input circuit, pixel memory, and output circuit.