Patent ID: 8319926
Filing Date: 2012-11-27
Classification: G02F

Abstract:
1. A liquid crystal display device comprising multiple pixel regions that are arranged in columns and rows to form a matrix pattern, wherein each said pixel region includes: a vertical alignment liquid crystal layer; first and second substrates, which face each other with the liquid crystal layer interposed between them; first, second and third subpixel electrodes, which are arranged on one side of the first substrate facing the liquid crystal layer; a counter electrode, which is arranged on one side of the second substrate facing the liquid crystal layer to oppose the first, second and third subpixel electrodes; and at least one alignment film, which is arranged in contact with the liquid crystal layer and defines pretilt directions, the first subpixel electrode being interposed between the second and third subpixel electrodes as viewed from a normal direction of the first substrate, and wherein each said pixel region is comprised of first, second and third regions associated with the first, second and third subpixel electrodes, respectively, and wherein each said pixel region includes eight liquid crystal domains in total, consisting of two sets of four liquid crystal domains of first, second, third and fourth types, in which liquid crystal molecules are tilted in first, second, third and fourth directions, respectively, around the center of a plane, and approximately at the middle of the thickness, of the liquid crystal layer in response to a voltage applied, the first, second, third and fourth directions being defined by the pretilt directions such that an angle formed between any two of the four directions is approximately equal to an integral multiple of 90 degrees, and wherein the first region has four liquid crystal domains of the first, second, third and fourth types, respectively, and wherein in the first region, the liquid crystal domain of the first type is located close to at least a part of an edge of the first subpixel electrode, the part including a first edge portion in which an azimuthal direction that is perpendicular to the part and that points toward the inside of the first subpixel electrode defines an angle greater than 90 degrees with respect to the first direction, and the liquid crystal domain of the second type is located close to at least a part of another edge of the first subpixel electrode, the part including a second edge portion in which an azimuthal direction that is perpendicular to the part and that points toward the inside of the first subpixel electrode defines an angle greater than 90 degrees with respect to the second direction, the liquid crystal domain of the third type is located close to at least a part of another edge of the first subpixel electrode, the part including a third edge portion in which an azimuthal direction that is perpendicular to the part and that points toward the inside of the first electrode defines an angle greater than 90 degrees with respect to the third direction, the liquid crystal domain of the fourth type is located close to at least a part of another edge of the first subpixel electrode, the part including a fourth edge portion in which an azimuthal direction that is perpendicular to the part and that points toward the inside of the first subpixel electrode defines an angle greater than 90 degrees with respect to the fourth direction, and wherein each of the second and third regions has two liquid crystal domains selected from the four other liquid crystal domains of the first, second, third and fourth types.