Patent ID: 7525605
Filing Date: 2009-04-28
Classification: G02F

Abstract:
1. A liquid crystal display device comprising: a plurality of signal lines and a plurality of scanning lines that are arranged on a transparent substrate so as to form a matrix; pixel regions that correspond to regions partitioned by the signal lines and the scanning lines; a plurality of auxiliary capacitance lines that are formed so as to be parallel with the scanning lines, the plurality of auxiliary capacitance lines being provided with auxiliary capacitance electrode portions, one for each of the pixel regions; upper auxiliary capacitance electrodes that are provided one for each of the auxiliary capacitance electrode portions; thin-film transistors that are provided one for each of the pixel regions; pixel electrodes that are electrically connected to drain electrodes of the thin-film transistors; terminal portions that are formed on the transparent substrate for receiving a signal from an outside; and a first insulating film, a second insulating film, and a third insulating film that are formed on the transparent substrate, wherein, in each of the auxiliary capacitance electrode portions, wherein, in each of the terminal portions, in the first insulating film, the second insulating film, and the third insulating film that are laid on top of another, a terminal-portion contact hole is formed in which an edge of an opening in the first insulating film is coated with the second insulating film.