DISPLAY DEVICE

PROBLEM TO BE SOLVED: To provide a display device in which the deterioration of a thin film transistor can be suppressed.SOLUTION: A display device according to the present embodiment includes: a pixel portion where a pixel including a thin film transistor provided on an insulating substrate and including a semiconductor layer and a gate electrode provided over the semiconductor layer with a gate insulating film interposed therebetween is arranged; a first terminal region which is provided on the insulating substrate and in which a first wire connected to a thin film transistor is disposed; a first protective film provided on the thin film transistor and the first wire and serving as an insulating film containing metal; a first insulating film provided on the first protective film; a second protective film provided on the first insulating film and serving as an insulating film containing metal; a second insulating film provided on the second protective film; a first opening provided in the first insulating film and the first protective film in the first terminal region and exposing a part of the first wire; and a second opening provided in the second insulating film and the second protective film in accordance with the first opening.SELECTED DRAWING: Figure 5 【課題】薄膜トランジスタの劣化を抑制することが可能な表示装置を提供する。【解決手段】本実施形態に係る表示装置は、絶縁基板上に配置され、半導体層と半導体層上にゲート絶縁膜を介して設けられたゲート電極とを含む薄膜トランジスタを含む画素が配置された画素部と、絶縁基板上に設けられ、薄膜トランジスタに接続された第１の配線が配置された第１の端子領域と、薄膜トランジスタ及び第１の配線上に設けられ、金属を含む絶縁膜としての第１の保護膜と、第１の保護膜上に設けられた第１の絶縁膜と、第１の絶縁膜上に設けられ、金属を含む絶縁膜としての第２の保護膜と、第２の保護膜上に設けられた第２の絶縁膜と、第１の端子領域内の第１の保護膜及び第１の絶縁膜内に設けられ、第１の配線の一部を露出する第１の開口部と、第１の開口部と対応して第２の保護膜及び第２の絶縁膜内に設けられた第２の開口部と、を具備している。【選択図】図５