Patent ID: 7417614

Claim:
A liquid crystal display device including a liquid crystal display element having a plurality of pixels each being adapted to be supplied with a video signal voltage corresponding to display data via a corresponding one of a plurality of video signal lines, and a video signal line driver circuit which supplies said video signal voltage to each of said plurality of video signal lines, said video signal line driver circuit comprising: a plurality of amplifiers each of which has a pair of a first input terminal and a second input terminal and which amplifies a video signal inputted thereto and supplies said amplified video signal to a corresponding one of said plurality of video signal lines; and a plurality of pairs of an inverting input terminal and a noninverting input terminal each of said plurality of pairs corresponding to each of said plurality of amplifiers; wherein each of said plurality of amplifiers has a switching circuit which switches between a first state and a second state, said first state being a state where said first input terminal is coupled to said inverting input terminal and said second input terminal is coupled to said noninverting input terminal, and said second state being a state where said first input terminal is coupled to said noninverting input terminal and said second input terminal is coupled to said inverting input terminal; and wherein said switching circuit switches between said first state and said second state, based on a switching control signal supplied with a switching repetition period equal to double a display line repetition period.