Patent ID: 7781153

Claim:
A method for forming a blocking pattern comprising: spin-coating a substrate with a polymer resin composition to form a preliminary blocking layer, wherein the substrate has a die forming region and an edge die region, a first portion of the preliminary blocking layer is disposed in the edge die region, and a second portion of the preliminary blocking layer is disposed in the die forming region; exposing the first portion of the preliminary blocking layer to light to form a first preliminary blocking pattern in the edge die region; and, developing the preliminary blocking layer by immersing the substrate in a developing solution to remove a portion of the second portion of the preliminary blocking layer, wherein the polymer resin composition comprises: about 75 to 93 percent by weight of a copolymer prepared using benzyl methacrylate, methacrylic acid, and hydroxyethyl methacrylate; about 1 to 7 percent by weight of a cross-linking agent; about 0.01 to 0.5 percent by weight of a thermal acid generator; about 0.01 to 1 percent by weight of a photoacid generator; about 0.00001 to 0.001 percent by weight of an organic base; and, a solvent.