Patent ID: 7667807

Claim:
A liquid crystal display (LCD) device comprising a liquid crystal (LC) layer, and first and second substrates sandwiching therebetween said LC layer to define a plurality of pixels, said first substrate including a first electrode and a second electrode in each of said pixels to apply said LC layer with a lateral electric field, wherein: said first substrate mounts thereon a transparent insulation film; said first electrode is formed on a first surface of said transparent insulation film near said LC layer, said second electrode is formed on a second surface of said transparent insulation film far from said LC layer; and said transparent insulation film has a first thickness (D 1 ) at a location in contact with said first electrode, and a second thickness (D 2 ) smaller than said first thickness at a location in contact with said second electrode, wherein the following relationship holds: D 2 <D 1 −40 (nm), and wherein the first substrate further comprises a substrate body, wherein a shortest distance between the first electrode and the substrate exceeds a distance between the LC layer and the substrate body.