In-plane switching mode liquid crystal display device

摘要

A liquid crystal display device according to the present invention is directed at optimizing the viewing angle characteristics of black luminance in a diagonal direction by realizing a low tilt angle without depending on an oriented film or an orientation treatment method in an FFS mode. The liquid crystal display device of the present invention is a liquid crystal display device in the FFS mode, including: a liquid crystal layer having a negative dielectric anisotropy; a color filter substrate disposed to sandwich the liquid crystal layer; and a TFT substrate having pixels, wherein a CF side common electrode which controls a potential is present in a liquid crystal layer side of the color filter substrate; and there is electric field controlling means which forms an alternating electric field between the CF side common electrode and a TFT side common electrode.

主权项

1. A liquid crystal display device comprising:
a first electrode disposed on a substrate in planar form; a plurality of second electrodes which sandwich an insulating film in the first electrode, are each aligned in generally parallel to the first electrode, and form a fringe electric field between the second electrodes and the first electrode; a third electrode disposed on an opposite substrate opposed to the substrate in planar form to face the first and second electrodes; and liquid crystal with a negative dielectric anisotropy, disposed between an oriented layer on the substrate which dispose the first and second electrodes, and an another oriented layer on the opposite substrate which dispose the third electrode; wherein the third electrode is connected to an electric field controlling means for forming an alternating electric field between the third electrode and the first and second electrodes.