A projection display apparatus (10) uses a modulation optical system (200) that includes a liquid crystal device (210) in combination with a wire grid polarization beamsplitter (240), a wire grid polarization analyzer (270) and a projection lens (285) to form an image. In order to achieve high contrast...http://www.google.com.au/patents/US20030128320?utm_source=gb-gplus-sharePatent US20030128320 - Display apparatus using a wire grid polarizing beamsplitter with compensator
Display apparatus using a wire grid polarizing beamsplitter with compensator
