Patent ID: 8879035

Claim:
A liquid crystal display device, comprising: a color-filter substrate having a common electrode, wherein the color-filter substrate is provided with no black matrix; a thin-film-transistor substrate disposed under the color-filter substrate and having a pixel array and transparent conductive material, wherein the pixel array has a plurality of thin-film-transistor units, a plurality of pixel electrodes and a plurality of metal signal lines; the transparent conductive material is disposed upon the pixel array in a direction from the thin-film-transistor substrate to the color-filter substrate with a protection layer placed therebetween; and a liquid crystal layer mounted between the thin-film-transistor substrate and the color-filter substrate and comprising liquid crystal materials, wherein the transparent conductive material correspondingly covers an area containing the thin-film-transistor units and the metal signal lines in a direction from the thin-film-transistor substrate to the color-filter substrate, and the transparent conductive material and the common electrode are at the same electric potential, wherein the transparent conductive material remains at the same electric potential while the liquid crystal materials within an area of the electrode pixels are driven to twist.