Strain relieved mounting method and apparatus for screen material
AssigneeRealD Inc.
InventorsHarrison Fast, David A. Coleman, Mark DiLullo
Life of this patent
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Abstract
A method of mounting screen material may include a screen mounted to a frame at multiple mounting points. One embodiment may include mounting patches attached along the perimeter of the screen. These mounting patches may be strain relieved in order to enable rolling the screen without sacrificing the in-plane rigidity of the patches when the screen is mounted to a frame. Stated differently, the strain relieved patches may reduce the strain on the screen in the circumstance the screen is rolled onto a core. The mounting patches may be strain relieved by locating notches or slits in the mounting patch.
Claims26
A projection screen, comprising:
- a first substrate and a second substrate, wherein each of the first substrate and the second substrate have at least a first seaming edge and a first mounting edge, further wherein the first seaming edge of the first substrate is joined together with the first seaming edge of the second substrate to form a seam;
- a first mounting patch attached to at least the first substrate, wherein the first mounting patch has at least one strain relief element, wherein the strain relief element reduces strain about a vertical axis, wherein the first mounting patch distributes a mechanical load across at least the first substrate so that the strain lines in the first substrate are optically at or around a just noticeable difference, further wherein the first mounting patch has a first edge that approximately aligns with at least the mounting edge of the first substrate.
A strain relieved patch for attachment to a projection screen, comprising:
- a substrate;
- strain relief features for reducing strain in the substrate of the strain relieved patch around an approximately vertical axis while substantially maintaining in plane rigidity;
- an attachment feature that allows attachment of a mechanical load, wherein the strain relieved patch approximately evenly distributes a mechanical load applied to the attachment feature;
- and
- an adhesive affixed to the strain relieved patch for mounting the strain relieved patch to a substrate;
- and
- wherein the strain relief features score a surface of the strain relieved patch and do not pass completely through the strain relieved patch.
Dependencies are inferred from the claim text.