Liquid crystal display panel with plurality of alignment marks within the wiring layer

A liquid crystal display panel comprising:

• an active element substrate provided with a pixel group region, said pixel group region being constructed of a plurality of pixel electrodes and a plurality of active elements, each of which is electrically connected with the corresponding one of said pixel electrodes;
• a color filter substrate provided with a color layer and a common electrode, said color filter substrate being oppositely disposed from said active element substrate;
• a liquid crystal layer interposed between said active element substrate and said color filter substrate;
• a first polarizer mounted on said active element substrate;
• a second polarizer mounted on said color filter substrate;
• a light shielding layer for covering an outer peripheral region of said color filter layer, said light shielding layer being formed on said color filter substrate;
• a wiring layer formed on an outside region of a pixel group region of said active element substrate;
• and
• a mark for checking alignment of said first polarizer with respect to said active element substrate, wherein said mark is formed by selectively removing a part of said wiring layer and is disposed under said light shielding layer.