Patent ID: 9257564
Filing Date: 2016-02-09
CPC Classification: H01L

Claim Text:
1. A liquid crystal display (LCD) comprising: a thin film transistor (TFT), a first protection layer formed on the TFT, an overcoating layer formed on the first protection layer, a first electrode formed on the overcoating layer, a second protection layer covering the first electrode and the overcoating layer, and a second electrode formed on the second protection layer, the TFT comprising: a gate formed on a substrate; an insulating layer formed on the substrate and covering the gate; a metal oxide layer formed on the insulating layer; an etch stopper layer coated on the metal oxide layer defining a first contact hole and a second contact hole; a drain and a source respectively formed on two opposite sides of the metal oxide layer, wherein the metal oxide layer comprises a source area, a drain area, and a channel area, each composed of at least one material having an oxygen concentration; the source is electrically coupled to the source area via the first contact hole; the drain is electrically coupled to the drain area via the second contact hole; and the oxygen concentration of a material of which the channel area is composed is greater than an oxygen concentration of a material of which each of the source area and the drain area are composed.