Patent ID: 7724334

Claim:
A liquid crystal display device comprising: a pair of substrates including a first substrate and a second substrate with a liquid crystal layer therebetween; a plurality of scanning signal lines and a plurality of video signal lines are formed on the first substrate; the scanning signal lines and the video signal lines are arranged in a shape of a grid, and a pixel region is defined as a region surrounded by the scanning signals line and the video signal lines; a black matrix is formed on the second substrate, the black matrix is arranged in a position overlapped with respect to the scanning signal lines and the video signal lines, and the black matrix has an opening portion in each pixel region; a plurality of first electrodes are provided over a side of the first substrate which faces the liquid crystal layer; and a plurality of second electrodes are provided over a side of the second substrate which faces the liquid crystal layer; wherein at least one of the first electrodes and at least one of the second electrodes are arranged in a position overlapped with the opening portion; wherein the at least one of the second electrodes is arranged in a shape of a grid and includes an elongated first portion which is elongated in parallel to one of the scanning lines and an elongated second portion which is elongated in parallel to one of the video signal lines.