An protective film and a resin layer are stacked on an insulation substrate on which a TFT is formed, and after a contact hole is formed in the resin layer, the protective film below the contact hole is etched and removed. A pixel display electrode is allowed to contact a drain electrode at the area...http://www.google.ca/patents/US6771346?utm_source=gb-gplus-sharePatent US6771346 - Liquid crystal display and manufacturing method thereof