Method and apparatus for joining screen material for minimal optical distortion

Abstract

The present disclosure describes a manufacturing method for seaming materials. The process may be suitable for manufacturing high performance projection screens using a number of methods including, but not limited to, conventional (convert-before-coating) methods, or convert-after-coating methods. An objective of the present disclosure is to identify a process which may substantially minimize distortion of the local surface normal in the vicinity of the join.

Description

[0001] Cross References to Related Applications : This application requires submission on July 13, 2011, entitled "Method and apparatus for joining screen material for minimal optical distortion (Method and apparatus for joining screen material for minimal optical distortion)", serial number No.61 / 507,574, which is hereby incorporated by reference in its entirety. technical field

[0002] The present disclosure relates generally to bonding materials, and more particularly, to bonding screen materials, such as front projection screens, including polarization maintaining front projection screens. Background technique

[0003] Generally, the front projection screen of a theater is made of a low-modulus substrate, such as plasticized polyvinyl chloride (PVC), with a thickness of about 300 microns. One of the benefits of such a substrate is that when the material is placed under a tensile load, variations affecting the local surface normal (which may affect screen appearance) a...

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