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US 2006/0221021 A1Published application
Display systems having screens with optical fluorescent materials
AssigneePrysm, Inc.
InventorsRoger Hajjar, David Kent, Phillip Malyak
Life of this patent
Estimating the term…
Abstract
Fluorescent screens and display systems and devices based on such screens using at least one excitation optical beam to excite one or more fluorescent materials on a screen which emit light to form images. The fluorescent materials may include phosphor materials and non-phosphor materials such as quantum dots. A screen may include a multi-layer dichroic layer.
Claims60
A display system, comprising:
- a screen comprising a substrate on which a plurality of parallel fluorescent stripes are formed, wherein at least three adjacent fluorescent stripes are made of three different fluorescent materials:
- a first fluorescent material to absorb light at an excitation wavelength to emit light of a first color, a second fluorescent material to absorb light at the excitation wavelength to emit light of a second color, and a third fluorescent material to absorb light at the excitation wavelength to emit light of a third color;
- an optical module to project and scan an excitation optical beam at the excitation wavelength onto the screen to convert an image carried by the excitation optical beam via an optical modulation into a color image produced by emitted light from the fluorescent stripes on the screen;
- an optical sensing mechanism to detect light emitted from the fluorescent stripes on the screen;
- and
- an alignment control mechanism in the optical module to control a timing of image data modulated on the laser beam to correct an alignment of the laser beam respect to the phosphor stripes.
3 more elements
A display system, comprising:
- first, second, and third display modules to produce first, second and third monochromatic image components of a final image in first, second, and third different colors, respectively, and to project the first, second and third monochromatic image components on a display screen to produce the final image,
- wherein the first display module comprises:
- (1) a first screen comprising a first fluorescent material to absorb light at an excitation wavelength to emit light at a first wavelength different from the excitation wavelength;
- (2) a first optical module to project and scan at least one optical beam at the excitation wavelength onto the first screen to convert an image in the first color carried by the optical beam into the first monochromatic image component produced by the first fluorescent material on the first screen;
- and (3) a first projection optical unit to project the first monochromatic image component from the first screen to the display screen.
2 more elements
A display system, comprising:
- a screen comprising a substrate on which at least one fluorescent material comprising quantum dots is deposited, wherein the fluorescent material absorbs light at an excitation wavelength to emit light at an emission wavelength longer than the excitation wavelength;
- and
- an optical module to project and scan an excitation optical beam at the excitation wavelength onto the screen to convert an image carried by the excitation optical beam via an optical modulation into an image produced by emitted light from the screen.
A display system, comprising:
- a screen comprising a substrate which has a plurality of different regions, wherein at least a first portion of the different regions comprise at least one fluorescent material that absorbs light at an excitation wavelength to emit fluorescent light at an emission wavelength longer than the excitation wavelength, and wherein at least a second portion of the different regions that are spatially interleaved with the first portion of the different regions do not include a fluorescent material;
- and
- an optical module to project and scan an excitation optical beam at the excitation wavelength onto the screen that carries images via an optical modulation to produce images at the first portion of the different regions via the emitted fluorescent light and images at the second portion of the different regions via the scanning excitation optical beam.
A display system, comprising:
- a screen comprising a substrate on which a plurality of parallel fluorescent stripes are formed, wherein at least three adjacent fluorescent stripes are made of three different fluorescent materials:
- a first fluorescent material to absorb light at an excitation wavelength to emit light of a first color, a second fluorescent material to absorb light at the excitation wavelength to emit light of a second color, and a third fluorescent material to absorb light at the excitation wavelength to emit light of a third color;
- and
- an optical module to project and scan an excitation optical beam at the excitation wavelength onto the screen to convert an image carried by the excitation optical beam via an optical modulation into an image produced by emitted light from the screen, wherein the optical module comprises a modulation control which combines a pulse code modulation and a pulse width modulation in the optical modulation of the excitation optical beam to produce image grey scales.
1 more element
Dependencies are inferred from the claim text.