Three-dimensional image display apparatus and color reproducing method for three-dimensional image display
First Claim
1. A color reproducing method for a three-dimensional image display in a three-dimensional image display apparatus provided with a shading mask with a minute aperture array, having minute aperture parts, in front of a color display device, each minute aperture part being provided with a color filter composed of a red-light transmitting part, a green-light transmitting part, and a blue-light transmitting part, said method comprising:
- a corresponding step of, between the respective red-transmitting part, the green-transmitting part, and the blue-light transmitting part of the color filters and respective red, green, and blue sub-pixels of the color display device, corresponding the light transmitting parts and the sub-pixels that have a same color and exist in a same parallax image pixel region to each other,a setting step of setting such that visual angles between the respective centers of the red-light transmitting part, the green-light transmitting part, and the blue-light transmitting part of the color filters become equal, in an identical parallax image pixel region, to visual angles between the respective centers of the red sub-pixel, the green sub-pixel, and the blue sub-pixel of the color display device,a display step of always displaying the red sub-pixel, the green sub-pixel, and the blue sub-pixel which belong to an identical parallax image pixel region at a fixed area ratio in a lighted condition, anda color reproducing step of, at a viewing position of the three-dimensional image display apparatus at an optimal viewing distance, performing color reproduction while maintaining the ratio of brightness of the three RGB primary colors at a predetermined value in each of the respective parallax image pixels.
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Accused Products
Abstract
In a three-dimensional image display apparatus provided with a shading mask with a minute aperture array in front of a color display device, the minute apertures are provided with color filters, a setting is provided so that the visual angles between the respective centers of the red-light transmitting part, green-light transmitting part, and blue-light transmitting part of the color filters become equal, in an identical parallax image pixel region, to the visual angles between the respective centers of the red, green, and blue sub-pixels of the color display device, the respective red, green, and blue sub-pixels are made so as to be always displayed in a lighted condition at a fixed area ratio, thus color reproduction wherein brightness ratio of the three primary colors in respective parallax image pixels is maintained at an appointed value is carried out.
94 Citations
20 Claims
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1. A color reproducing method for a three-dimensional image display in a three-dimensional image display apparatus provided with a shading mask with a minute aperture array, having minute aperture parts, in front of a color display device, each minute aperture part being provided with a color filter composed of a red-light transmitting part, a green-light transmitting part, and a blue-light transmitting part, said method comprising:
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a corresponding step of, between the respective red-transmitting part, the green-transmitting part, and the blue-light transmitting part of the color filters and respective red, green, and blue sub-pixels of the color display device, corresponding the light transmitting parts and the sub-pixels that have a same color and exist in a same parallax image pixel region to each other, a setting step of setting such that visual angles between the respective centers of the red-light transmitting part, the green-light transmitting part, and the blue-light transmitting part of the color filters become equal, in an identical parallax image pixel region, to visual angles between the respective centers of the red sub-pixel, the green sub-pixel, and the blue sub-pixel of the color display device, a display step of always displaying the red sub-pixel, the green sub-pixel, and the blue sub-pixel which belong to an identical parallax image pixel region at a fixed area ratio in a lighted condition, and a color reproducing step of, at a viewing position of the three-dimensional image display apparatus at an optimal viewing distance, performing color reproduction while maintaining the ratio of brightness of the three RGB primary colors at a predetermined value in each of the respective parallax image pixels. - View Dependent Claims (2, 3, 4, 8)
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5. A color reproducing method for a three-dimensional image display in a three-dimensional image display apparatus provided with a shading mask with a minute light source array, having light sources, in the rear of a transmission type color display device, each light source being composed of a red-light emitting part, a green-light emitting part, and a blue-light emitting part, said method comprising:
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a corresponding step of, between the respective red-light emitting part, the green-light emitting part, and the blue-light emitting part of the minute light sources and respective red, green, and blue sub-pixels of the transmission type color display device, corresponding the light emitting parts and the sub-pixels that have a same color and exist in a same parallax image pixel region to each other, a setting step of setting such that visual angles between the respective centers of the red-light emitting part, the green-light emitting part, and the blue-light emitting part of the minute light sources become equal, in an identical parallax image pixel region, to visual angles between the respective centers of the red sub-pixel, the green sub-pixel, and the blue sub-pixel of the transmission type color display device, a display step of always displaying the red sub-pixel, the green sub-pixel, and the blue sub-pixel which belong to an identical parallax image pixel at a fixed area ratio in a lighted condition, and a color reproducing step of, at a viewing position of the three-dimensional image display apparatus at an optimal viewing distance, performing color reproduction while maintaining the ratio of brightness of the three RGB primary colors at a predetermined value in each of the respective parallax images. - View Dependent Claims (6, 7, 9)
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10. A three-dimensional image apparatus comprising:
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a display device which has pixel units, each composed of sub-pixels of a plurality of colors arranged in a horizontal direction and each being a unit of display, and which displays two or more parallax images in a composite manner so that approximately identical sections of the two or more parallax images, each having been divided into a plurality of sections in the horizontal direction, are arranged by a predetermined order; and a mask in which aperture parts and shading parts are alternatively provided in the horizontal direction and which allows light from pixel units for displaying respective sections of a same parallax image to be emitted from all of the pixel units to reach, through the aperture parts, observation regions which are different depending on the parallax image, wherein on each of the aperture parts of said mask, a filter unit composed of color filters of a plurality of colors which are arranged in the horizontal direction is provided, wherein the pixel units are each composed of red, green, and blue sub-pixels or yellow, cyan, and magenta sub-pixels, and wherein the filter units are each composed of color filters of five colors which consist of two colors from red, green, and blue, one color from white and transparent, and two colors from yellow, cyan and magenta. - View Dependent Claims (11, 12, 13, 14)
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15. A three-dimensional image display apparatus comprising:
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a display device which has pixel units, each composed of sub-pixels of a plurality of colors arranged in the horizontal direction and each being a unit of display, and which displays two or more parallax images in a composite manner so that approximately identical sections of the two or more parallax images, each having been divided into a plurality of sections in the horizontal direction, are arranged by a predetermined order; and a mask in which aperture parts and shading parts are alternatively provided in the horizontal direction and which allows light from pixel units for displaying respective sections of a same parallax image to be emitted from all of the pixel units to reach, through the aperture parts, observation regions which are different depending on the parallax image, wherein on each of the aperture parts of said mask, a filter unit composed of color filters of a plurality of colors which are arranged in the horizontal direction is provided, and wherein the following conditions are satisfied;
D1h;
E1=L1m1d1;
L1
D1h/3;
c1h=L1m1d1+L1;
L1
E1;
3c1h=L1m1d1+L1;
L1m1d1
N×
E1;
m1h=L1m1d1+L1;
L1m1d1
e1;
3c1h=L1+L1m1f1;
L1m1f1
L1m1d1=L1f1d1+L1m1f1
D1h/3;
3c1h=L1f1d1;
L1m1f1
D1h/3;
e1=L1f1d1;
L1+L1m1f1where D1h is the horizontal pitch of the pixel units in said display device, the D1h/3 is horizontal pitch of the sub-pixels in said display device, c1h is the horizontal pitch of the color filters in said mask, 5c1h is the horizontal width of the filter unit in said mask, 3c1h is the horizontal width of each region in the filter unit through which light from each of the sub-pixels of a plurality of colors can transmit, m1h is the repeating pitch in the horizontal direction of the shading parts and the filter units in said mask, L1m1d1 is the distance between said display device and said mask, L1 is the distance from said mask to an observation region, E1 is the horizontal pitch of the observation regions which is different depending on the parallax image, N is the number of the parallax images, when f1 is an intersection of straight lines between both end parts in the horizontal direction of one of the sub-pixels of the display device and both end parts of the color filters through which light from one of sub-pixel can transmit, L1f1d1 is the distance between the intersection f1and said display device, L1m1f1 is the distance between the intersection f1and said mask, and e1 is the horizontal width of the parallax image at the observation region.
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16. A three-dimensional image display apparatus comprising:
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a display device which has pixel units, each composed of a plurality of sub-pixels which allow light of mutually different colors to transmit, arranged in a horizontal direction and each being a unit of display, and which displays two or more parallax images in a composite manner so that approximately identical sections of the two or more parallax images, each having been divided into a plurality of sections in the horizontal direction, are arranged by a predetermined order; and a light source array in which light-emitting parts and non-light-emitting parts are alternatively provided in the horizontal direction and which illuminates said display device so that light from the pixel units for displaying respective sections of a same parallax image is emitted from all of the pixel units and reaches observation regions which are different depending on the parallax image, wherein the light emitting parts of said light source array are each constructed by arranging a plurality of light sources which emit light of mutually different colors in the horizontal direction, wherein the pixel units are each composed of red, green, and blue sub-pixels or yellow, cyan, and magenta sub-pixels, and wherein the light-emitting parts are each composed of light sources which emit light of five colors which consist of two colors from red, green, and blue, one color from white and transparent, and two colors from yellow, cyan and magenta. - View Dependent Claims (17, 18, 19)
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20. A three-dimensional image display apparatus comprising:
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a display device which has pixel units, each composed of a plurality of sub-pixels which allow light of mutually different colors to transmit, arranged in a horizontal direction and each being a unit of display, and which displays two or more parallax images in a composite manner so that approximately identical sections of the two or more parallax images, each having been divided into a plurality of sections in the horizontal direction, are arranged by a predetermined order; and a light source array in which light-emitting parts and non-light-emitting parts are alternatively provided in the horizontal direction and which illuminates said display device so that light from the pixel units for displaying respective sections of a same parallax image is emitted from all of the pixel units and reaches observation regions which are different depending on the parallax image, wherein the light emitting parts of said light source array are each constructed by arranging a plurality of light sources which emit light of mutually different colors in the horizontal direction, and wherein the following conditions are satisfied;
E2;
D2h=L2+L2d2m2;
L2d2m2
c2h;
D2h/3=L2+L2d2m2;
L2
L2d2f2+L2f2m2=L2d2m2
e2;
(km2+2)×
c2h=L2+L2d2f2;
L2f2m2
kd2×
D2h/3;
(km2+2)×
c2h=L2d2f2;
L2f2m2
m2h;
N×
D2h=L2+L2d2m2;
L2
m2h;
N×
E2=L2d2m2;
L2where D2h is the horizontal pitch of the pixel units in said display device, D2h/3 is the horizontal pitch of the sub-pixels in said display device, c2h is the horizontal pitch of the light sources in said light source array, (km2+4)c2h is the horizontal width in the light-emitting part of said light source array, (km2+2)c2h is the horizontal width of each of sets of the light sources which emit a light to transmit through each of the sub-pixels, when the non-light-emitting part and the light emitting part are provided as a unit, m2h is the repeating pitch in the horizontal direction of the units, L2d2m2 is the distance between said display device and said light source array, L2 is the distance from said display device to an observation region, E2 is the horizontal pitch of the observation regions, when f2 is an intersection of straight lines between both end parts in the horizontal direction of the sub-pixel for one color of the lights of the display device and both end parts of the light sources which emit lights to transmit through these sub-pixels for the one color of the lights, L2d2f2 is the distance between the intersection f2 and said display device, L2f2m2 is the distance between the intersection f2 and said light source arrays, kd2 is the pixel aperture ratio in the horizontal direction in said display device, km2 is the light source aperture ratio in the horizontal direction in said light source array, N is the number of the parallax images, and e2 is the horizontal width of the parallax image at the observation region.
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Specification