Patent ID: 7323713

Claim:
A thin film transistor array substrate comprising: an insulating substrate; a thin film transistor formed on the insulating substrate; a display pixel formed on the insulating substrate, the display pixel having a pixel electrode connected to a drain electrode of the thin film transistor; the thin film transistor including a first thin metal multi-layer film, an upper layer of which includes aluminum, formed on the insulating substrate; and the display pixel including a second thin metal film formed of a transparent electrically-conductive film formed on the first thin metal film with an interlayer insulating film interposed therebetween, wherein the interlayer insulating film has a first opening, and the upper layer of the first metal film has a second opening that includes an overlapped area with the first opening, the overlapped area of the second opening in which a lower layer of the first thin metal film and the second thin metal film are connected to each other, and the interlayer insulating film comes in contact with the second thin metal film and the lower layer of the first thin metal film in the second opening.