Liquid crystal display device and defect repairing method for the same
View Patent ↗The present invention relates to a liquid crystal display device and a defect repairing method for the same, and has an object to provide a liquid crystal display device in which a disconnection defect occurring in a storage capacitor bus line can be repaired without producing a new point defect, and a defect repairing method for the same. In the defect repairing method for the liquid crystal display device in which the disconnection defect of the storage capacitor bus line formed on a substrate is repaired, the method includes a step of forming disconnection repairing contact holes for exposing the storage capacitor bus line at both end portions of a disconnection of the storage capacitor bus line and in regions where a pixel electrode is not formed, and a step of forming a disconnection repairing conductive film for electrically connecting both the end portions of the disconnection through the disconnection repairing contact holes without short-circuiting the pixel electrode, and is constructed such that the disconnection defect is repaired by a disconnection repair path constituted by the disconnection repairing conductive film.
1. A liquid crystal display device comprising:
an insulating substrate;
pixel regions arranged in a matrix form on the substrate;
storage capacitor bus lines formed to cross the pixel regions;
storage capacitor electrodes formed to be opposite to the storage capacitor bus lines through an insulating film; and
two divided pixel electrodes formed in each of the pixel regions above the storage capacitor electrode at both sides of an electrically separated separation region, each of the divided pixel electrodes being electrically connected to the storage capacitor electrode.
2. A liquid crystal display device according to claim 1 , wherein the separation region has a sufficient width to form a disconnection repairing conductive film of the storage capacitor bus line.
3. A liquid crystal display device according to claim 1 , wherein each of the storage capacitor electrodes includes two protruding regions, and is electrically connected to the two pixel electrodes through contact holes formed in the two protruding regions.