A black mask comprises: a first and a second antireflection films each comprising oxide, nitride, carbide, oxide nitride, oxide carbide, nitride carbide, or oxide nitride carbide of at least one kind of metal selected from the group consisting of chromium, molybdenum, tungsten, nickel, and germanium,...http://www.google.com/patents/US6285424?utm_source=gb-gplus-sharePatent US6285424 - Black mask, color filter and liquid crystal display
