DIFFUSING SCREEN
First Claim
Patent Images
1. A rear projection display screen comprising:
- a sheet-like structure transparent to one or more wavelengths of light, the sheet-like structure having a viewing surface and comprising a diffusing pattern configured to create destructive interference of selected wavelengths of light traveling in a direction normal to a plane of the viewing surface.
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Accused Products
Abstract
Various embodiments related to a rear projection display screen configured to reduce an intensity of light at a viewing angle at which the light is less likely to be viewed by a user are disclosed. One disclosed embodiment provides a diffusing screen comprising a sheet-like structure transparent to one or more wavelengths of light. The sheet-like structure has a viewing surface and comprises a diffusing pattern configured to create destructive interference of a selected wavelength of light traveling in a direction normal to a plane of the viewing surface of the screen.
23 Citations
20 Claims
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1. A rear projection display screen comprising:
a sheet-like structure transparent to one or more wavelengths of light, the sheet-like structure having a viewing surface and comprising a diffusing pattern configured to create destructive interference of selected wavelengths of light traveling in a direction normal to a plane of the viewing surface. - View Dependent Claims (2, 3, 4, 5, 6, 7)
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8. A display system comprising:
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a housing; a display screen coupled to the housing, the display screen comprising a viewing surface and a diffuser screen layer, the diffuser screen layer comprising a pattern, the pattern comprising a plurality of pattern elements each comprising a first terrace and a second terrace separated by a distance corresponding to one half of a selected wavelength of visible light plus an integer number of the selected wavelength of visible light, the pattern configured to create destructive interference of the selected wavelength of visible light in a direction normal to the viewing surface; and an image source disposed within the housing and configured to project an image onto the screen. - View Dependent Claims (9, 10, 11, 12, 13, 14, 15, 17, 18, 19, 20)
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16. A horizontal display system comprising:
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a housing; a horizontally-oriented rear projection display screen coupled to the housing, the display screen comprising a viewing surface and a diffuser screen layer transparent to one or more wavelengths of visible light and one or more wavelengths of infrared light, the diffuser screen layer comprising a pseudo-random pattern with a plurality of pattern elements each comprising a first terrace and a second terrace separated by a distance corresponding to one half of a selected wavelength of visible light plus an integer number of the selected wavelength of visible light, the pseudo-random pattern configured to create destructive interference of the selected wavelength of visible light in a direction normal to the viewing surface; and an image source disposed within the housing configured to project an image onto the screen.
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Specification