A light absorbing thin film stack is placed in an upper interconnect level of a pixel cell of an LCD light valve to prevent transmission of light from the small gap between adjacent pixel electrodes into the silicon substrate. The light absorbing thin film stack includes a surface layer combination formed...http://www.google.de/patents/US6452652?utm_source=gb-gplus-sharePatent US6452652 - Light absorbing thin film stack in a light valve structure
