Electro-optical unit and display

A display including

• an illumination optical system,
• an electro-optical unit generating image light by modulating light emitted from the illumination optical system based on an image signal input, and
• a projection optical system projecting the image light generated by the electro-optical unit,
• the electro-optical unit comprising:
• a plurality of pixels provided correspondingly to portions where a plurality of pairs of data lines with two data lines assigned as a pair and a plurality of gate lines intersect with each other,
• wherein each of the pixels has an electro-optical device, and a pixel circuit that is connected with the electro-optical device,
• the pixel circuit has a holding circuit connected with one of the plurality of pairs of data lines and one of the plurality of the gate lines, and a selection circuit connected with an output of the holding circuit and the electro-optical device,
• the holding circuit is configured to be capable of sampling and holding a first image signal to be applied to one of the pair of data lines depending on a writing selection signal to be applied to the gate line, while sampling and holding a second image signal to be applied to the other of the pair of data lines depending on a writing selection signal to be applied to the gate line, and
• the selection circuit is configured to be capable of outputting the first image signal and the second image signal that are held by the holding circuit to the electro-optical device selectively depending on an output selection signal.