Active matrix substrate and display device

摘要

An active matrix substrate 5 is provided with: a plurality of source wiring lines and a plurality of gate wiring lines, which are arranged in a matrix pattern; and picture elements, each of which has a thin film transistor provided in the vicinity of a part where each source wiring line and each gate wiring line intersect each other, and a picture element electrode 26 connected to the thin film transistor. In the active matrix substrate, a base member 5a is provided such that the source wiring lines and the gate wiring lines intersect each other, and on the base member 5a, the connecting portion 28a of an auxiliary capacitor electrode and the connecting portion 29a of an auxiliary capacitor wiring line are connected to each other by having therebetween a nitride film 33 composed of a high melting point metal material.

主权项

1. An active matrix substrate for use as a substrate of a display panel, comprising:
a base member; a plurality of data wiring lines and a plurality of scan wiring lines on the base member, which are arranged in a matrix pattern; a plurality of picture elements on the base member, each picture element including a picture element electrode connected to a switching element; an auxiliary capacitor electrode formed from a transparent electrically conductive film; and an auxiliary capacitor wiring line comprising an aluminum alloy, wherein said auxiliary capacitor electrode and said auxiliary capacitor wiring line are electrically connected to each other via a metal material film comprising nitride interposed between said auxiliary capacitor electrode and said auxiliary capacitor wiring line, and wherein an auxiliary capacitance generates between said auxiliary capacitor electrode and the picture element electrode of said picture element.