Patent ID: 7646370

Claim:
A display device having pixel circuits disposed in a matrix, each pixel circuit comprising: a pixel TFT that is turned on and off by connecting one end to a data line for supplying a data signal, connecting a gate to a selection line, and setting a selection signal on the selection line to an H level or an L level; a storage capacitor for storing a voltage of the data signal supplied from the data line, one end of which is connected to another end of the pixel TFT and the other end of which is connected to a storage capacitor line; and a liquid crystal element for applying a voltage to a liquid crystal between electrodes, one electrode of which is connected to said another end of the pixel TFT and the other electrode of which is held at a common electrode potential; wherein said storage capacitor line, after said pixel TFT is turned on and the data signal on the data line is written to the storage capacitor, changes from a first level to a second level causing a voltage to be applied to the liquid crystal element to shift by a predetermined voltage; said storage capacitor line is provided with two lines to correspond to each pixel circuit row, each of a plurality of pixel circuits disposed in a row direction is connected to only either one of the two storage capacitor lines; and said predetermined voltage, which is a difference between the first level and second level in said storage capacitor line, can be changed by changing the first level and/or the second level.