Patent ID: 9583510
Date: 2017-02-28
CPC Classifications: G02F,H01L

Claim:
1. A semiconductor device including a substrate and a thin film transistor supported by the substrate, the semiconductor device comprising: a first metal layer including a gate electrode of the thin film transistor; a gate insulating layer formed on the first metal layer; an oxide semiconductor layer formed on the gate insulating layer and including an active layer of the thin film transistor, the oxide semiconductor layer including a first portion formed so as to overlap the gate electrode and a second portion extending from the first portion while crossing an edge at one end of the gate electrode; a second metal layer formed on the oxide semiconductor layer and including a source electrode and a drain electrode of the thin film transistor, the drain electrode being located closer to the second portion than the source electrode is; an interlayer insulating layer formed on the second metal layer and including a first contact hole; and a first transparent electrode layer formed on the interlayer insulating layer and in the first contact hole; wherein: the interlayer insulating layer does not include an organic insulating layer; the first contact hole is formed so as to overlap the second portion of the oxide semiconductor layer and an end of the drain electrode closer to the second portion, when viewed along a normal to the substrate; and the first transparent electrode layer includes a transparent conductive layer in contact with the end of the drain electrode and the second portion of the oxide semiconductor layer in the first contact hole.