Moire reduction with controlled perforation location
AssigneeDolby Laboratories Licensing Corporation
InventorsMartin J. Richards, Barret Lippey
Life of this patent
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Abstract
One or more perforation hole pattern methods are applied (402) to generate a spatial distribution of perforation holes forming a semi-random pattern for an image display screen. The image display screen is perforated (404) with the spatial distribution of perforation holes forming the semi-random pattern. Image rendering light is emitted (406) with a light projector toward the image display screen that is installed in an image rendering environment. At least a portion of the image rendering light emitted from the light projector is reflected (408) by the image display screen, toward a viewer.
Claims18
An image display screen comprising:
- a spatial distribution of perforation holes forming a semi-random pattern to reduce Moire patterns in image rendering operations;
- wherein the image display screen is configured to reflect at least a portion of image rendering light emitted from a light projector toward a viewer;
- wherein the image display screen comprises a plurality of webs that are joined along one or more seam edges;
- and
- wherein the spatial distribution of perforation holes on the image display screen trends from the semi-random pattern to a regular perforation pattern toward the one or more seam edges.
A method of manufacturing an image display screen, comprising:
- applying one or more perforation hole pattern methods to generate a spatial distribution of perforation holes forming a semi-random pattern for the image display screen to reduce Moire patterns in image rendering operations;
- perforating the image display screen with the spatial distribution of perforation holes forming the semi-random pattern;
- providing a plurality of webs that are joined along one or more seam edges of the image display screen;
- wherein the spatial distribution of perforation holes on the image display screen trends from the semi-random pattern to a regular perforation pattern toward the one or more seam edges.
Dependencies are inferred from the claim text.