Patent ID: 7126570

Claim:
A liquid crystal device having multiple pixels, the liquid crystal device comprising: an input terminal that receives a display signal including a predetermined signal used for generating a common signal and multiple pixel signals to be supplied to the multiple pixels, wherein the predetermined signal is embedded into a predetermined period between a group of pixel signals and another group of pixel signals in the display signal, and the common signal is to be commonly supplied to the multiple pixels; a common signal line that is commonly connected to the multiple pixels; and a common signal line driving circuit that generates the common signal in response to the predetermined signal included in the display signal input from the input terminal and supplies the generated common signal to the common signal line, wherein the predetermined period is part of a horizontal scanning period except an effective horizontal scan period, and wherein the common signal line driving circuit is a sample/hold circuit that samples the predetermined signal included in the display signal input from the input terminal and outputs the predetermined sampled signal as the common signal.