An optical block, which may be of a small size, for applying light efficiently to a display device such as a liquid crystal panel, and a display apparatus. The optical block (1) has a polarizing beam splitter (3) mounted on baseboard (2) at a predetermined angle with respect to light applied from a light...http://www.google.ca/patents/US6144492?utm_source=gb-gplus-sharePatent US6144492 - Optical block and display unit
