Patent ID: 7851806
Filing Date: 2010-12-14
Classification: G02F,H01L

Abstract:
1. A thin film transistor (TFT) liquid crystal display (LCD) array substrate, comprising: a. an insulating substrate; b. a plurality of gate lines continuously extending along a first direction, formed on the insulating substrate and covered by a gate insulating film, a semiconductor film, and a passivation protection film; c. a plurality of data lines discontinuously extending along a second direction perpendicular to the first direction, the data lines being disconnected at intersections with the gate lines, formed upon the insulating substrate on laminated layers of a gate metal film, the gate insulating film, the semiconductor film, and an ohmic contact film, and covered by the passivation protection film, wherein the passivation protection film has data line via holes on the ends of the data lines at the intersections, which exposes the ends of the data lines on two sides of each gate line, wherein the gate lines and the data lines intersect to define a plurality of pixel areas; d. a plurality of pixel electrodes formed on the passivation protection film in the pixel areas; e. a plurality of TFTs formed on the insulating substrate for the pixel areas and over the respective gate lines in the vicinity of the data lines, wherein a part of each gate line is used for a gate electrode of one TFT, and wherein each TFT has a source and a drain; f. a plurality of source electrodes and drain electrodes for the TFTs, each source electrode being formed at the source of one TFT, each drain electrode being formed at the drain of one TFT, and the source electrodes and the drain electrodes being formed over the laminated layers of the gate metal film, the gate insulating film, the semiconductor film, and the ohmic contact film, and covered by the passivation protection film that has formed therein a plurality of source via holes and a plurality of drain via holes for the source electrodes and the drain electrodes; and g. a connecting conductive film formed on the passivation protection film that connects the data lines on two sides of the gate lines through the data line via holes; wherein each drain electrode is connected with one pixel electrode through the drain via hole over the drain electrode, and each source electrode is connected with the connecting conductive film through the source via hole over the source electrode, whereby the source electrodes are connected with the data lines, and wherein the data lines, source electrodes and drain electrodes of the TFTs are made of a same source/drain metal film.