Patent ID: 7816168

Claim:
A method of forming a color filter over a substrate having a display region and a peripheral region surrounding the display region, wherein the substrate has a passivation layer formed thereon and the passivation layer has at least one trench formed therein within the peripheral region, the method comprising: performing a first spin-on coating process with a first spin rate to form a first color filter layer over the passivation layer and to fill the trench; patterning the first color filter layer so as to form a plurality of first color filter blocks in the display region and to expose a portion of the passivation layer; performing a second spin-on coating process with a second spin rate to form a second color filter layer over the passivation layer, wherein the first spin rate is smaller than the second spin rate; and patterning the second color filter layer to form a plurality of second color filter blocks between the first color filter blocks respectively.