Patent ID: 8420302
Filing Date: 2013-04-16
Classification: G02F,G03F

Abstract:
1. A method of manufacturing a display substrate, the method comprising: forming a first metal layer on a base substrate; forming a first photoresist pattern on the first metal layer, the first photoresist pattern having first photoresist pattern widths; forming a first fine photo pattern by ashing the first photoresist pattern to provide first fine photo pattern widths that are smaller than the first photoresist pattern widths; forming a first signal line by etching the first metal layer exposed through the first fine photo pattern; forming a first insulation layer on the base substrate having the first signal line formed thereon; forming a second metal layer on the first insulation layer; forming a second photoresist pattern on the second metal layer, the second photoresist pattern having a partial residue part, the partial residue part being thinner than other portions of the second photoresist pattern; forming a second fine photo pattern by ashing the second photoresist pattern to form an opening corresponding to the partial residue part; forming a second signal line by etching the second metal layer exposed through the second fine photo pattern; and forming a pixel electrode in a pixel area of the base substrate, the pixel electrode being electrically connected to the first or second signal line.