Patent ID: 8432349

Claim:
A liquid crystal display device comprising: a plurality of scan signal lines; a plurality of video signal lines intersecting the scan signal lines via an insulating layer; a plurality of pixels; TFT elements formed one in each of the plurality of pixels; pixel electrodes connected one to each of the TFT elements; a plurality of video signal input terminals, the number of which is less than the number of video signal lines; a switch circuit interposed between the plurality of video signal input terminals and the plurality of video signal lines; and a drive circuit which inputs video signals into each of the plurality of video signal input terminals, wherein the switch circuit has a plurality of switch elements and a plurality of switching wires which carry out an activation and deactivation of the switch elements, each of the plurality of switch elements is connected to one of the plurality of switching wires, each of the plurality of video signal lines is connected to one of the plurality of video signal input terminals via one of the plurality of switch elements, each of the plurality of video signal input terminals is connected to a plurality of the plurality of video signal lines, the switching wires, to which are connected the switch elements connected one to each of the plurality of the plurality of video signal lines, differ from one another, each of the plurality of switching wires is connected to a plurality of the plurality of switch elements, among the video signal lines connected one to each of the plurality of the plurality of switch elements, there exist two or more kinds of number of other video signal lines disposed between two adjacent video signal lines, the video signal input terminals include a first video signal input terminal and a second video signal input terminal adjacent to the first video signal input terminal, the video signal lines include a first video signal line, a second video signal line, a third video signal line, a fourth video signal line, a fifth video signal line, and a sixth video signal line which are formed aligned in the order named, the switching wires include a first switching wire, a second switching wire, and a third switching wire, the first video signal input terminal is connected to the first video signal line, second video signal line, and third video signal line, the second video signal input terminal is connected to the fourth video signal line, fifth video signal line, and sixth video signal line, the switch element connected to the first video signal line, and the switch element connected to the sixth video signal line, are connected to the first switching wire, the switch element connected to the second video signal line, and the switch element connected to the fifth video signal line, are connected to the second switching wire, and the switch element connected to the third video signal line, and the switch element connected to the fourth video signal line, are connected to the third switching wire.