An optical film has a transparent film including light output portions distributed over one of opposite surfaces of the transparent film so as to make the total luminous transmittance and the haze of the optical film be set in a range of from 75 to 92% and in a range of from 4 to 20% respectively, the...http://www.google.es/patents/US20020187284?utm_source=gb-gplus-sharePatente US20020187284 - Optical film and liquid-crystal display device
Número de solicitud: 10/096,935 Número de publicación: US 2002/0187284 A1 Fecha de presentación: 14 Mar 2002 Patente emitida: US7871680 ( Fecha de emisión 18 Ene 2011)
