Patent ID: 7986390
Filing Date: 2011-07-26
Classification: G02F

Abstract:
1. A method of manufacturing an active matrix liquid crystal display device including a first substrate, a second substrate facing the first substrate, and a liquid crystal layer sandwiched by the first substrate and the second substrate, the method comprising: forming a scan signal wiring line on the first substrate; forming a common signal wiring line disposed along the scan signal wiring line; forming a video signal wiring line intersecting the scan signal wiring line and the common signal wiring line; and forming a pixel, which is disposed in a first region surrounded with the scan signal wiring line and the video signal wiring line, and includes: a second region in an edge of a display area of the pixel; and a third region on the common signal wiring line, which is close to the second region, wherein a molecular axis of a liquid crystal molecule in said display area of the liquid crystal layer rotating in a plane approximately parallel to the first substrate under an electric field, which is approximately parallel to the first substrate and is applied between the pixel electrode and the common electrode, wherein in the second region, the molecular axis of the liquid crystal molecule rotates in a direction, which is different from a first direction, under an electric field applied between an edge of the pixel electrode in the display area and an edge of the common signal wiring line on a side of the display area, wherein the pixel electrode overlaps with the common signal wiring line at an end of the pixel electrode, and wherein in a region where the pixel electrode overlaps with the common signal wiring line, at a side of the pixel electrode where an electric field between the common signal wiring line and the pixel electrode rotates the molecular axis of the liquid crystal molecule in a direction, which is opposite to a direction to which an electric field between the pixel electrode and the common electrode in an adjacent display area rotates the molecular axis of the liquid crystal molecule, a width of the pixel electrode is increased, so as to face the common electrode with a narrower electrode spacing, a pixel electrode edge, which is along a boundary between the pixel electrode with increased width and the display area, is parallel to a common signal wiring line edge which is along a boundary with the display area, and the molecular axis of the liquid crystal molecule in the liquid layer rotates in the first direction under a fringe electric field, which occurs in a vicinity of an edge of the pixel electrode in the third region, the pixel electrode overlapping with the common signal wiring line in the third region.