Patent ID: 7327427

Claim:
A liquid crystal display device comprising: an active matrix substrate on which a large number of gate lines and a large number of drain lines which cross each other, switching elements which are formed at respective crossing portions of the gate lines and the drain lines in a matrix array, pixel electrodes which are driven by the switching elements and counter electrodes which drive liquid crystal using an electric field generated between the counter electrodes and the pixel electrodes are formed; and another substrate which faces the active matrix substrate by way of a liquid crystal layer, wherein each of the counter electrodes is arranged above a respective drain line and is overlapped to the drain line by way of an insulation layer, the counter electrode has a region having a width larger than a width of the drain line, and the counter electrode has a groove which is recessed along the extending direction of the drain line between an end periphery of the counter electrode and the drain line such that the grooves are formed at both sides of the drain line.