Patent ID: 9570616
Date: 2017-02-14
CPC Classifications: G02F,H01L

Claim:
1. A display device comprising: a first substrate; a gate electrode on the first substrate; a gate insulating layer on the gate electrode; a semiconductor layer on the gate insulating layer; a source electrode on the semiconductor layer; a drain electrode on the semiconductor layer and spaced apart from the source electrode; a first passivation layer on the semiconductor layer, the source electrode and the drain electrode, wherein the first passivation layer comprises a silicon nitride-based material; a second passivation layer on the first passivation layer, wherein the second passivation layer comprises a silicon nitride-based material; and a third passivation layer on the second passivation layer, wherein the third passivation layer comprises a silicon nitride-based material, wherein a content ratio of silicon in the first passivation layer is higher than a content ratio of silicon in the second passivation layer, and the content ratio of silicon in the second passivation layer is higher than a content ratio of silicon in the third passivation layer.