A liquid crystal display unit is provided which includes a primary, image-defining display and a secondary display, arranged in series with the primary display. The primary and secondary displays have equal numbers of light shutters, similarly sized and located on each display, so that when the corresponding...http://www.google.de/patents/US5307188?utm_source=gb-gplus-sharePatent US5307188 - Color liquid crystal display with dead front appearance having opaque mask formed on the primary display
