Patent ID: 7800727

Claim:
A liquid crystal display device comprising a liquid crystal panel which is constituted of a pair of substrates with liquid crystal sandwiched therebetween, wherein one of the pair of substrates includes a plurality of scanning signal lines, a plurality of video signal lines which three-dimensionally intersect the plurality of scanning signal lines via an insulation layer, a plurality of common signal lines which three-dimensionally intersect the scanning signal lines or the video signal lines via an insulation layer, and a bus line which is arranged outside a display region and supplies an electric signal to the common signal lines, wherein the scanning signal lines or the video signal lines form intersecting regions where the scanning signal lines or the video signal lines three-dimensionally intersect the bus line via the insulation layer and have an overlapping relation thereat, the bus line having a plurality of opening portions disposed entirely between and outside of respective intersecting regions as viewed in a plan view; a plurality of conductive films is formed between the respective intersecting regions and at a position where a respective conductive film is overlapped to the bus line and at least at one of the opening portions of the bus line via an insulation layer; the respective conductive film has electrically connected portions with the bus line by way of a plurality of through holes formed in the insulation film; and the bus line is formed in the same layer as the scanning signal line or the video signal line, and the respective conductive film is formed so as to be interposed between the bus line and the liquid crystal.