Projection display apparatus having both incoherent and laser light sources
First Claim
1. A display apparatus for forming, on a display surface, a color image including a plurality of superimposed color images, the display apparatus comprising:
- (a) a first color modulation channel for forming a first color two-dimensional image, comprising;
(a1) a laser light source for providing a first color source beam;
(a2) a linear spatial light modulator for modulating said first color source beam to provide a modulated light beam having a first color;
(a3) a scanning element for scanning said modulated light beam having said first color to form said first color two-dimensional image;
(b) a second color modulation channel for forming a second color two-dimensional image, comprising;
(b1) an incoherent light source for providing a second color source beam;
(b2) an area spatial light modulator for modulating said second color source beam to form a second color two-dimensional image; and
(c) at least one projection lens for projecting, toward the display surface, the color image comprising said first color two-dimensional image combined with said second color two-dimensional image.
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Abstract
A color display apparatus for forming, on a display surface, a color image of superimposed color images, the display apparatus having a first color modulation channel for forming a first color two-dimensional image using a laser light source for providing a first color source beam, a linear spatial light modulator for modulating the first color source beam, and a scanning element for scanning the modulated light beam to form a first color two-dimensional image. A second color modulation channel forms a second color two-dimensional image using an incoherent light source for providing a second color source beam to an area spatial light modulator for modulating the second color source beam to form a second color two-dimensional image. A projection lens then projects a superimposed color image of the first color two-dimensional image and the second color two-dimensional image and any third color two-dimensional image.
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Citations
85 Claims
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1. A display apparatus for forming, on a display surface, a color image including a plurality of superimposed color images, the display apparatus comprising:
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(a) a first color modulation channel for forming a first color two-dimensional image, comprising;
(a1) a laser light source for providing a first color source beam;
(a2) a linear spatial light modulator for modulating said first color source beam to provide a modulated light beam having a first color;
(a3) a scanning element for scanning said modulated light beam having said first color to form said first color two-dimensional image;
(b) a second color modulation channel for forming a second color two-dimensional image, comprising;
(b1) an incoherent light source for providing a second color source beam;
(b2) an area spatial light modulator for modulating said second color source beam to form a second color two-dimensional image; and
(c) at least one projection lens for projecting, toward the display surface, the color image comprising said first color two-dimensional image combined with said second color two-dimensional image. - View Dependent Claims (2, 3, 4, 5, 6, 7, 8, 9, 10, 11, 12, 13, 14, 15, 16, 17, 18, 19)
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20. A display apparatus for forming, on a display surface, a color image including a plurality of superimposed images, the display apparatus comprising:
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(a) a first color modulation channel for forming a first two-dimensional image, comprising;
(a1) a first laser light source for providing a source laser beam;
(a2) a first linear spatial light modulator for modulating said source laser beam to provide at least one modulated light beam having a first color;
(a3) a scanning element for directing, toward a first color combiner, a scanned line image beam comprising said at least one modulated light beam having said first color;
(b) a second color modulation channel for forming a second two-dimensional image, comprising;
(b1) a first incoherent light source for providing a second color source beam;
(b2) a first area spatial light modulator for modulating said second color source beam to provide a second color image beam to said first color combiner;
(c) said first color combiner combining at least said scanned line image beam and said second color image beam to form a superimposed color image beam; and
(d) a projection lens for projecting said superimposed color image beam toward the display surface. - View Dependent Claims (21, 22, 23, 24, 25, 26, 27, 28, 29, 30, 31, 32, 33, 34, 35, 36, 37, 38, 39, 40)
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41. A system for forming, on a display surface, a color image including a plurality of superimposed images, the system comprising:
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(a) a first color modulation channel for forming a first two-dimensional image, comprising;
(a1) means for providing a source laser beam;
(a2) means for modulating said source laser beam to provide at least one modulated light beam having a first color;
(a3) means for directing, toward a color combiner, a scanned line image beam including said at least one modulated light beam having said first color;
(b) a second color modulation channel for forming a second two-dimensional image, comprising;
(b1) means for providing a second color incoherent source beam;
(b2) means for modulating said second color incoherent source beam to provide a second color image beam to said color combiner;
(c) said color combiner combining at least said scanned line image beam and said second color image beam to form a superimposed color image beam; and
(d) means for projecting said superimposed color image beam toward the display surface.
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42. A display apparatus for forming, on a display surface, a color image as a plurality of superimposed images, the display apparatus comprising:
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(a) a linear image modulation channel for forming a polychromatic, scanned linear image beam, comprising;
(a1) a first laser light source for providing a first color source beam;
(a2) a first linear spatial light modulator for modulating said first color source beam to direct, towards a first color combiner, at least one modulated light beam having a first color;
(a3) a second laser light source for providing a second color source beam;
(a4) a second linear spatial light modulator for modulating said second color source beam to direct, towards said first color combiner, at least one modulated light beam having a second color;
(a5) said first color combiner combining said modulated light beam having said first color and said modulated light beam having said second color to form a combined color modulated linear light beam and directing said combined color modulated linear light beam toward a first projection lens;
(a6) said first projection lens directing said combined color modulated linear light beam toward a scanning element for forming said scanned linear image beam, said first projection lens projecting said scanned linear image beam toward the display surface;
(b) an area image modulation channel for forming an area image beam, comprising;
(b1) an incoherent light source for providing an area source beam;
(b2) a first area spatial light modulator for modulating said area source beam to provide said area image beam; and
(b3) a second projection lens for projecting said area image beam toward the display surface. - View Dependent Claims (43, 44, 45, 46, 47, 48, 49, 50, 51, 52, 53, 54, 55, 56, 57, 58, 59, 60, 61, 62)
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63. A display apparatus for forming, on a display surface, a color image comprising a plurality of superimposed color images, the display apparatus comprising:
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(a) a first color modulation channel for forming a first color two-dimensional image, comprising;
(a1) a laser light source for providing a first color source beam;
(a2) a linear spatial light modulator for modulating said first color source beam to provide a modulated light beam having a first color;
(a3) a scanning element for scanning said modulated light beam having said first color to form said first color two-dimensional image;
(b) a second color modulation channel comprising an emissive display for forming a second color two-dimensional image; and
(c) at least one projection lens for projecting, toward the display surface, the color image comprising said first color two-dimensional image superimposed with said second color two-dimensional image. - View Dependent Claims (64)
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65. A display apparatus for forming, on a display surface, a color image comprising a plurality of superimposed color images, the display apparatus comprising:
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(a) a first color modulation channel for forming a green two-dimensional image, comprising;
(a1) a laser light source for providing a green source beam;
(a2) a first spatial light modulator for modulating said green source beam to form said green two-dimensional image having a first resolution;
(b) a second color modulation channel for forming a second color two-dimensional image, comprising;
(b1) an incoherent light source for providing a second color source beam;
(b2) an area spatial light modulator for modulating said second color source beam to form a second color two-dimensional image having a second resolution, wherein said first resolution is greater than said second resolution; and
(c) at least one projection lens for projecting, toward the display surface, the color image comprising said green two-dimensional image superimposed with said second color two-dimensional image. - View Dependent Claims (66, 67, 68, 69)
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70. A method for forming, on a display surface, a color image as a plurality of superimposed images, comprising the steps of:
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(a) forming a first color linear image beam including the steps of;
(a1) providing a first color laser source beam;
(a2) modulating said first color laser source beam to provide at least one diffracted light beam having a first color;
(b) forming a second color two-dimensional image beam including the steps of;
(b1) providing a second color source beam from an incoherent light source;
(b2) modulating said second color source beam;
(c) combining said first color linear image beam with said second color two-dimensional image beam to form a superimposed image beam; and
(d) projecting said superimposed image beam toward the display surface. - View Dependent Claims (71, 72, 73, 74, 75)
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76. A method for forming a color image as a plurality of superimposed two-dimensional images, comprising the steps of:
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(a) forming a first color two-dimensional image including the steps of;
(a1) providing a first color laser source beam;
(a2) modulating said first color laser source beam to provide a modulated light beam having a first color;
(a3) scanning said modulated light beam having said first color to form said first color two-dimensional image;
(b) forming a second color two-dimensional image including the steps of;
(b1) providing a second color source beam from an incoherent light source;
(b2) modulating said second color source beam to form a second color two-dimensional image; and
(c) projecting the color image comprising said first color two-dimensional image superimposed with said second color two-dimensional image. - View Dependent Claims (77, 78, 79, 80, 81, 82, 83)
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84. A method for forming, on a display surface, a color image as a plurality of superimposed two-dimensional images, comprising the steps of:
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(a) forming a polychromatic, scanned linear image beam including the steps of;
(a1) providing a first color laser source beam;
(a2) modulating said first color laser source beam to form at least one modulated light beam having a first color;
(a3) providing a second color laser source beam;
(a4) modulating said second color laser source beam to form at least one modulated light beam having a second color;
(a5) combining said modulated light beam having said first color and said modulated light beam having said second color to form a combined color modulated linear light beam;
(a6) directing said combined color modulated linear light beam toward a scanning element for forming said scanned linear image beam;
(a7) projecting said scanned linear image beam toward the display surface;
(b) forming an area image beam including the steps of;
(b1) providing an area source beam from an incoherent light source;
(b2) modulating said area source beam to provide said area image beam; and
(b3) projecting said area image beam toward the display surface.
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85. A method for forming, on a display surface, a color image as a plurality of superimposed two-dimensional images, comprising the steps of:
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(a) forming a first color two-dimensional image including the steps of;
(a1) providing a first color laser source beam;
(a2) modulating said first color laser source beam to provide a modulated light beam having a first color;
(a3) scanning said modulated light beam having said first color to form said first color two-dimensional image;
(b) activating an emissive imaging array device to form a second color two-dimensional image; and
(c) projecting, toward the display surface, the color image comprising said first color two-dimensional image superimposed with said second color two-dimensional image.
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Specification