Patent ID: 7843538

Claim:
A liquid crystal display device comprising: a lower substrate including a pixel electrode and a thin film transistor coupled to the pixel electrode; an upper substrate including a common electrode; and a liquid crystal layer interposed between the lower substrate and the upper substrate; wherein the pixel electrode includes a main body part and an electric field controller, wherein the electric field controller includes one of a convex portion protruding from a lateral side of the main body part and a concave portion recessed from the lateral side of the main body part; and wherein each of the portions of the electric field controller has a general shape that is one of an isosceles triangle, an isosceles trapezoid, and a right triangle; and wherein an included angle between a lateral side of the shape of the included portion of the electric field controller and a corresponding lateral side of the main body part is in a range of about 2 to about 22.5 degrees.