Patent ID: 8098356

Claim:
A liquid crystal display device, comprising a liquid crystal panel made of a first substrate, a second substrate and a liquid crystal layer sandwiched between said first substrate and said second substrate, wherein the liquid crystal panel has a first polarizer and a second polarizer on the top and at the bottom; the liquid crystal panel has a number of pixels which can be controlled independently; each pixel has a pair of electrodes, a pixel electrode and a common electrode, in a display portion on the surface of the second substrate close to the liquid crystal layer; the pixel electrode and the common electrode are layered on top of each other with an insulating layer in between; either the pixel electrode or the common electrode further away from the liquid crystal layer is provided as a portion of an electrode sheet in a plane; and the liquid crystal layer is driven by applying an electrical field of which a main component is parallel to the liquid crystal plane, and wherein either the pixel electrode or the common electrode which is close to the liquid crystal layer has a comb-like structure where a linking portion is provided only on one side in a plane, an end portion of the comb-like structure has an end portion structure for preventing a domain from growing, the width of the slits in the comb-like structure is greater than the width of the electrodes, a liquid crystal material of the liquid crystal layer has a positive dielectric anisotropy, and the alignment in the liquid crystal layer is horizontal in an initial state and has such a pretilt angle that the liquid crystal rises from the end portions in the comb-like structure towards the root in the interface close to the electrodes; and the spray elastic constant of the liquid crystal layer is k11 and the twist elastic constant is k22, and k11/k22 is 2 or greater and 3.1 or less.