Display screen and method of manufacture therefor

Details Display screen and method of manufacture therefor Display screen and method of manufacture therefor

G - Physics

03

B

G03B 21/62 (2006.01)

Patent

CA 2369033

A screen assembly (35) that combines an angle re-distributing prescreen (34) with a conventional diffusion screen is disclosed. The prescreen (34) minimizes or eliminates the sensitivity of the screen assembly to projector location. The diffusion screen (44) provides other desirable screen characteristics. Compatible screen structures are also disclosed, along with methods for fabricating high resolution prescreens. Finally, means for maintaining the desired relationship between the prescreen and the diffusion screen are disclosed.

L'invention concerne un ensemble écran (35) combinant un pré-écran (34) de redistribution d'angle et un écran de diffusion classique. Le pré-écran (34) réduit au minimum ou élimine la sensibilité de l'ensemble écran à l'emplacement du projecteur. L'écran de diffusion (44) procure d'autres caractéristiques d'écran avantageuses. L'invention concerne également des structures d'écran compatibles ainsi que des procédés de fabrication de pré-écrans à haute résolution. Enfin, l'invention a trait à un moyen destiné à maintenir la relation voulue entre le pré-écran et l'écran de diffusion.

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