The elliptically polarizing plate of the present invention has a twisted structure in which a dichroic substance is fixed within a helical structure, and is designed to emit a fixed elliptically polarized light. Within the dichroic substance that forms the helical structure, incident light is divided...http://www.google.fr/patents/US6023314?utm_source=gb-gplus-shareBrevet US6023314 - Elliptically polarizing plate and liquid crystal display device using same
Elliptically polarizing plate and liquid crystal display device using same
