Patent ID: 7259820

Claim:
An active matrix type liquid crystal display device comprising: a pair of substrates; a liquid crystal sealed between said pair of substrates; a plurality of data lines and a plurality of scanning lines which are arranged so as to intersect each other on one surface of a first of said pair of substrates; a switching element having an electric current path, one end of which is connected to a corresponding one of said data lines, and having a control terminal which is connected to a corresponding one of said scanning lines; a pixel electrode which is provided above said data lines via an insulation film, and is connected to the other end of the electric current path of said switching element; a common electrode which opposes said data lines via said insulation film, said common electrode having slits in portions overlapping said data lines; a black matrix which is arranged on a second of said pair of substrates in a predetermined pattern, said black matrix having a portion covered by a flattening film; and a first conductive film provided on said flattening film so as to oppose said data lines via said slits, said first conductive film being set to a common electric potential with said common electrode; wherein said first conductive film overlaps said portions of said common electrode where said slits are formed; wherein an electric field can be generated between said common electrode and said pixel electrode; wherein at least some portions of said common electrode that are adjacent to said slits overlap at least some portions of said data lines; wherein said portion of said black matrix is located opposite a data line of said plurality of data lines and has a width that is less than a width of said data line and that is at least slightly larger than a width of a slit in a portion of said common electrode that is overlapping said data line; and wherein said first conductive film has a width that is at least larger than the width of said portion of said black matrix.