Patent ID: 7486357
Filing Date: 2009-02-03
Classification: G02F

Abstract:
1. An LCD panel for transmitting or cutting off a light through a change of a liquid crystal material array by interposing a liquid crystal material between a lower substrate consisting of a thin film transistor as a switching element and an upper substrate consisting of a common electrode, the lower substrate, comprising: a transparent substrate; a storage capacitor composed of a storage capacitor first electrode deposited and patterned on the transparent substrate with a conductive film, a capacitor insulating film deposited in predetermined thickness on the transparent substrate and the storage capacitor first electrode, and a capacitor second electrode opposite to the storage capacitor first electrode on the capacitor insulating film and comprising an opaque conductive material which cuts off an incident light; a first interlayer insulating film deposited on the capacitor insulating film and the capacitor second electrode; a thin film transistor channel patterned on the first interlayer insulating film with a semiconductor film; a gate insulating film covering the first interlayer insulating film and the thin film transistor channel; a gate electrode patterned on the gate insulating film located on top of the thin film transistor channel with a first conductive material; a first contact electrode and a second contact electrode forming contact holes up to the capacitor first electrode and the second electrode from the gate insulating film, respectively, and electrically contacting with the capacitor first electrode and the second electrode, respectively, by filling the contact holes with the first conductive material; a second interlayer insulating film deposited on the first contact electrode, the second contact electrode, the gate electrode, and the gate insulating film; a common electrode forming contact holes connected to the first contact electrode, the second contact electrode, a source and a drain of a channel, respectively, by opening a predetermined area of the second interlayer insulating film, while being contacted with the first contact electrode formed by filling the contact holes with metal, a source electrode contacted with the source of the channel, and a drain electrode simultaneously contacted with the drain of the channel and the second contact electrode; a third interlayer insulating film deposited on the common electrode, the source electrode, the drain electrode, and the second interlayer insulating film; and a pixel electrode forming contact holes contacted with the drain electrode by opening a predetermined area of the third interlayer insulating film, and consisting of a transparent conductive material electrically contacted with the drain electrode.