Liquid crystal display and substrate thereof

A method for manufacturing a substrate for a liquid crystal display, comprising the steps of:

• forming a transparent electrode on a substrate;
• forming a black matrix layer;
• depositing a photosensitive material on the black matrix layer to form a photosensitive layer;
• patterning the photosensitive layer;
• and
• etching the black matrix layer using the photosensitive layer as mask.

A liquid crystal display, comprising:

• a first insulating substrate;
• gate lines formed on said first insulating substrate and transmitting scanning signals;
• data lines insulatedly intersecting said gate lines and transmitting image signals;
• pixel electrodes formed in regions defined by the intersection of said data lines and said gate lines;
• redundant data lines formed on a same layer as said pixel electrodes;
• switching elements connected to said gate lines, said data lines and said pixel electrodes, said switching elements either transmitting or cutting off the transmission of the image signals to said pixel electrodes according to the scanning signals;
• a second insulating substrate provided opposite to said first insulating substrate at a predetermined distance;
• a common electrode formed on said second insulating substrate;
• and
• a protrusion pattern formed on said common electrode at least in regions corresponding to said redundant data lines and said protrusion pattern of an insulating material.

A liquid crystal display, comprising:

• a first insulating substrate;
• a transparent electrode formed on said first insulating substrate;
• a light-blocking layer formed on said transparent electrode and made of metal;
• and
• a protrusion portion made of an organic layer and aligned with the light-blocking layer.