Patent ID: 7041522

Claim:
A manufacturing method of a color liquid crystal display device comprising the steps of: forming a first conductive film on an entire surface of a transparent insulating substrate and patterning said first conductive film to form a gate electrode and a gate bus line; depositing a gate insulating film, a semiconductor layer, an ohmic layer, and a second conductive film on said entire surface and patterning them to form an island of a thin film transistor and a drain bus line; forming a color filter in a predetermined region on said transparent insulating substrate; forming a light shielding film on said entire surface and patterning said light shielding film to form a black matrix which covers said island other than a channel region and covers a region other than said color filter at least; forming a drain electrode and a source electrode in said island by removing said second conductive film and ohmic layer in a region corresponding to said channel region by using said black matrix as a mask; forming a planarization film on said entire surface and making a contact hole to expose said source electrode; and forming a transparent conductive film on said entire surface and patterning said transparent conductive film to form a pixel electrode, electrically connected to said source electrode, in such a manner as to include at least a region overlapping said color filter.