An optical panel includes a plurality of stacked optical waveguides bound by black cladding to collectively form an inlet face and an opposite display screen. An inlet diffuser has an inlet surface, and an opposite outlet surface adjoining the inlet face of the waveguides. Asymmetric diffusion of image...http://www.google.es/patents/US20040071417?utm_source=gb-gplus-sharePatente US20040071417 - Display panel having dual directional diffusion
Número de solicitud: 10/267,821 Número de publicación: US 2004/0071417 A1 Fecha de presentación: 9 Oct 2002 Patente emitida: US6999665 ( Fecha de emisión 14 Feb 2006)