Patent ID: 7936428

Claim:
A liquid crystal display device comprising: a first substrate; a second substrate arranged in facing relation to said first substrate; and a liquid crystal layer sandwiched between said first and second substrates, wherein said first substrate includes a thin film transistor having a gate electrode, a drain electrode and a source electrode, a pixel electrode associated with a pixel, a common electrode to which a reference voltage is applied, a data line, a scanning line, and a couple of common electrode lines, the scanning line is located between the couple of common electrode lines in parallel with each other, said gate electrode, said drain electrode, said source electrode and said common electrode are electrically connected to said scanning line, said data line, said pixel electrode and said couple of common electrode lines, respectively, said second substrate is designed to include no electrodes thereon, but includes a color filter and a light-shielding layer comprised of a black matrix layer, said first substrate includes an electric-field shielding layer for preventing an electric field from leaking into pixels in which images are to be displayed, from said scanning line, said electric-field shielding layer is comprised of an electrically conductive layer and is formed in a layer located closer to said liquid crystal layer than an area in which said scanning line is arranged, said first substrate further includes the common electrode that is formed in such a shape that the common electrode overlaps over the data line, and is used to prevent an electric field from leaking into pixels in which images are to be displayed from the data line, wherein a narrow gap is provided between the common electrode that overlaps the data line and the electric-field shielding layer, said color filter includes red, green and blue colorants, said green colorant contains a pigment at a concentration of greater than 20 weight %, said black matrix layer has a volume resistivity of 1×10 9 Ω·cm or greater, said common and pixel electrodes are formed from a transparent electrode material on a same interlayer insulating film, the same interlayer insulating film has a flat top surface, the same interlayer insulating film, on which the common and pixel electrodes are formed, is located closer to said liquid crystal layer than an area in which said scanning line and said couple of common electrode lines are arranged and an area in which said data line is arranged, said electric-field shielding layer being comprised of an electrically conductive layer is formed from the transparent electrode material on the same interlayer insulating film, said electric-field shielding layer is located in close vicinity to one of the pixel electrodes on the same interlayer insulating film, and said liquid crystal display device has a chromaticity area of 65% or greater by NTSC ratio, which NTSC ratio is defined on the basis of NTSC standard for the chromaticity area.