Patent ID: 7193668

Claim:
A liquid crystal display (LCD) device, comprising: a thin film transistor (TFT) formed on a substrate, the TFT having a gate, a source and a drain; a semiconductor layer aligned with the gate and having end portions extending beyond outside edges of the gate; a color filter layer on the TFT, and in direct contact with the source and the drain, wherein said contact is only at a portion where said color filter layer is overlapping only edge portions of the source and drain so as to prevent light leakage and improve an aperture ratio; a planarization layer formed over the TFT and the color filter layer, and a pixel electrode formed above the planarization layer and the color filter layer to be in electrical contact with the drain through a contact hole formed in the planarization layer where the color filter layer is not formed, wherein the source and drain are spaced apart from each other and overlap both end portions of the semiconductor layer, and wherein the contact hole is formed in the planarization layer at a position corresponding to the end portion of the semiconductor layer above the drain.