Patent ID: 7538853

Claim:
A method of forming electrode patterns on a large area type of glass substrate using photolithography, the method comprising: providing a first exposure apparatus and a second exposure apparatus; loading a first defective photomask and a second defective photomask into the first exposure apparatus and the second exposure apparatus, respectively, the first defective photomask and the second defective photomask each having a same mask pattern corresponding to an electrode pattern to be formed and each including a large area type glass mask plate corresponding to the glass substrate, each of the large area type glass mask plates having a light-blocking portion and a light-transmitting portion, each light-transmitting portion including an air bubble forming a light-block defect; loading the glass substrate into the first exposure apparatus and performing a first exposure on the glass substrate through the first defective photomask; and loading the glass substrate into the second exposure apparatus and performing a second exposure on the glass substrate through the second defective photomask.