Patent ID: 6256081
Filing Date: 2001-07-03
Classification: G02F

Abstract:
High aperture ratio and high transmittance liquid crystal display preventing color shift comprising:an upper substrate and a lower substrate opposed and separated by a selected distance, wherein the upper and the lower substrate have defined a plurality of sub-pixels;a liquid crystal layer including a plurality of liquid crystal molecules and interposed between inner surfaces of the upper and lower substrates;a first electrode formed on the inner surface of the lower substrate; anda second electrode formed on the inner surface of the lower substrate, wherein the first electrode and the second electrode form a electric field for driving the liquid crystal molecules;wherein in the absence of electric field between the first and second electrodes, the liquid crystal molecules are aligned such that their long axis are parallel to surfaces of the substrate in a first direction;wherein after a selected voltage is applied there between, first and second electric fields that are oblique with respect to the first direction are simultaneously formed in a pixel, and the two oblique electric fields are formed to be symmetrical with respect to the first direction;wherein the first and second electrodes are made of transparent materials;wherein the distance between the first and second electrodes is shorter then the distance between the upper and lower substrates;wherein widths of the first and second electrodes are determined such that liquid crystal molecules overlying the two electrodes are driven by the oblique electric fields generated between the first and second electrodes.