A windshield indicia display system utilizing a liquid crystal display in conjunction with a polarizing filter element and semi-transparent reflective tape element to form a unique optical system capable of projecting in digital format a virtual image into the visual field of the operator. This virtual...http://www.google.se/patents/US4190832?utm_source=gb-gplus-sharePatent US4190832 - Polarized windshield indicia reflection display system
