Patent ID: 7333170

Claim:
An in plane switching mode liquid crystal display device, comprising: a first substrate and a second substrate; a plurality of gate lines disposed horizontally on the first substrate; a plurality of data lines disposed vertically on the first substrate, the plurality of gate lines and the plurality of data lines defining a first sub-pixel, a second sub-pixel, a third sub-pixel, and a fourth sub-pixel, wherein the sub-pixels are arranged in a 2×2 matrix form; at least one pair of first and second electrodes disposed in each sub-pixel; a first common line between the first and the second sub-pixels according to a first sub-pixel area ratio, the first common line connected to the first electrode disposed in the first and second sub-pixels; a second common line between the third and the fourth sub-pixels according to a second sub-pixel area ratio, the second sub-pixel area ratio being different from the first sub-pixel area ratio, and the second common line connected to the first electrode disposed in the third and fourth sub-pixels; a switching device formed at a crossing of the gate line and the data line; and a liquid crystal layer formed between the first and the second substrates.