Patent ID: 8269232
Filing Date: 2012-09-18
Classification: H01L

Abstract:
1. A thin film transistor liquid crystal display (TFT LCD) array substrate, comprising a substrate and a pixel array on the substrate, each pixel comprising: a gate line and a gate electrode having sides formed on the substrate; a gate insulating layer formed on the gate line and the gate electrode and having sides, the sides of the gate electrode being aligned with the sides of the gate insulating layer; a semiconductor layer formed on the gate insulating layer disposed on the gate electrode, the semiconductor layer having two outer portions, each outer portion having a side; an ohmic contact layer having two parts, each part having a side, the two part being disposed on the two outer portions of the semiconductor layer respectively and are apart from one another, the sides of the two parts of the ohmic contact layer being aligned with the two sides of the two outer portions of the semiconductor layer, and the underlying gate insulating layer having extending outer portions that are exposed outside of the two sides of the semiconductor layer; an isolation insulating dielectric layer covering the substrate and the gate insulating layer except a portion on which the semiconductor layer is formed; a pixel electrode formed on the isolation insulating dielectric layer and the ohmic contact layer on the semiconductor layer; a source/drain electrode formed on the pixel electrode over the ohmic contact layer, and a passivation layer at least covering the semiconductor layer.