High brightness directional viewing screen

G - Physics – 03 – B

Patent

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Details

G03B 21/60 (2006.01) B32B 3/30 (2006.01) G02F 1/1335 (2006.01) G03B 21/62 (2006.01) G03F 7/00 (2006.01)

Patent

CA 2168106

A high-brightness directional viewing screen (10) having an output directed toward a predefined viewing area (12) and providing high brightness is disclosed. The viewing screen has a micro-sculpted surface relief structure therein which increases brightness in a predefined viewing area by controlling the direction in which light propagates from the screen. The screen works either in reflection or transmission in a wide variety of viewing situations such as viewing slides, television, overhead transparencies, liquid crystal displays, microscope projection screens, and many others.

Un écran de visualisation directionnel (10) de grande luminosité possède une sortie dirigée vers un zone de visualisation prédéfinie (12) et présente une grande luminosité. L'écran de visualisation possède une structure en relief à surface microsculptée qui augmente la luminosité dans une zone de visualisation prédéfinie en commandant la direction dans laquelle la lumière se propage depuis l'écran. L'écran fonctionne soit en réflexion, soit en transmission dans une large variété de situations de visualisation, telles que les diapositives, la télévision, les documents pour rétroprojection, les affichages à cristaux liquides, les écrans de microprojection et bien d'autres.

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