Method for manufacturing a thin film transistor liquid crystal display is provided. A substrate is provided. A gate electrode, a source electrode, a drain electrode, and a passivation film are formed on the substrate in sequence. The passivation film has a contact hole to expose a part of the drain electrode. A conductive layer is formed by coating nano metal material on the passivation film and in the contract hole from which the drain electrode is exposed. A pixel electrode is formed by patterning the conductive layer.