Patent ID: 7561229
Filing Date: 2009-07-14
Classification: G02F

Abstract:
1. A color filter-on-thin film transistor (COT) substrate, comprising: a plurality of gate lines; a plurality of data lines crossing the plurality of gate lines to define a plurality of pixel areas; a gate insulating film between the plurality of gate and data lines; a thin film transistor (TFT) at each crossing of the gate and data lines; a pixel electrode connected to each TFT and arranged within each pixel area; a protective film having a contact hole to expose a portion of a drain electrode of the TFT; a plurality of patterned color filters overlapping the pixel electrodes, wherein each patterned color filter is stripe-shaped to overlap a plurality of pixel areas and is oriented parallel to one of the gate and data lines, each patterned color filter comprises a concave part corresponding the contact hole which a width of the contact hole is less than a width of the concave part, and a portion of the protective film and the portion of the drain electrode are exposed by the concave part and the contact hole; and two patterned color filters overlapping at least one of a channel of a TFT and a data line.