CN108761822B - Crosstalk-free and uniform-resolution double-view 3D display device and method for same visual area - Google Patents
Crosstalk-free and uniform-resolution double-view 3D display device and method for same visual area Download PDFInfo
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- CN108761822B CN108761822B CN201810912984.9A CN201810912984A CN108761822B CN 108761822 B CN108761822 B CN 108761822B CN 201810912984 A CN201810912984 A CN 201810912984A CN 108761822 B CN108761822 B CN 108761822B
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- 208000003164 Diplopia Diseases 0.000 claims abstract description 5
- 208000029444 double vision Diseases 0.000 claims abstract description 5
- 238000003384 imaging method Methods 0.000 claims description 9
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
- G02B30/22—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the stereoscopic type
- G02B30/25—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the stereoscopic type using polarisation techniques
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B30/00—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images
- G02B30/20—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes
- G02B30/26—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type
- G02B30/27—Optical systems or apparatus for producing three-dimensional [3D] effects, e.g. stereoscopic images by providing first and second parallax images to an observer's left and right eyes of the autostereoscopic type involving lenticular arrays
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Abstract
The invention discloses a crosstalk-free and uniform-resolution double-vision 3D display device and a method for the same visual area, wherein the device comprises a display screen, a polarization array, a pinhole array, polarization glasses 1 and polarization glasses 2; on the premise of not increasing the resolution of the 3D image, the resolution of the 3D image is more uniform, and the display effect is improved; switching different 3D images by wearing different polarized glasses without moving the viewing position; the pinhole array enables the light rays emitted by any two image elements 1 not to interfere with each other, and the pinhole array enables the light rays emitted by any two image elements 2 not to interfere with each other, so that crosstalk is eliminated.
Description
Technical Field
The present invention relates to dual view 3D displays, and more particularly, to a crosstalk-free and uniform resolution dual view 3D display device and method for the same viewing area.
Background
The integrated imaging dual-view 3D display is a fusion of the dual-view display technology and the integrated imaging 3D display technology. It may enable a viewer to see different 3D pictures in different viewing directions. However, existing integrated imaging dual vision 3D displays suffer from three distinct disadvantages: 1. the two 3D visual areas are separated, and a viewer needs to move the viewing position to see another 3D picture; 2. the resolution is not uniform; 3. there is crosstalk. Thus, the application of integrated imaging dual vision 3D display in home entertainment devices and medical devices is limited.
Disclosure of Invention
The invention aims to overcome the defects in the prior art and provide a crosstalk-free and uniform-resolution double-vision 3D display device and a method thereof, and the display device based on the display method can simultaneously provide two different 3D images with uniform resolution in the same visual area.
In order to achieve the above object, the present invention provides the following technical solutions:
the cross-talk-free and uniform-resolution double-vision 3D display device in the same visual area is shown in the figure 1, and is characterized by comprising a display screen, a polarization array, a pinhole array, polarization glasses 1 and polarization glasses 2; the polarization array is formed by alternately arranging the polarization units 1 and the polarization units 2 in the horizontal direction and the vertical direction, wherein the polarization units 1 are orthogonal to the polarization direction of the polarization units 2, and the polarization directions of the adjacent polarization units in the horizontal direction and the vertical direction of the polarization array are orthogonal to each other, as shown in fig. 2; the polarization glasses 1 and the polarization units 1 have the same polarization direction, and the polarization glasses 2 and the polarization units 2 have the same polarization direction;
the display screen is used for displaying a micro-image array, and the micro-image array is formed by alternately arranging image elements 1 and 2 in the horizontal and vertical directions, as shown in fig. 3; the image element 1 is acquired through a 3D scene 1, and the image element 2 is acquired through a 3D scene 2; the image element 1 and the image element 2 correspond to and are aligned with the polarization unit 1 and the polarization unit 2, respectively;
light rays emitted from the leftmost side and the rightmost side of the image elements 1 of the odd columns in the micro-image array just cannot pass through pinholes corresponding to the image elements positioned in the adjacent odd columns;
light rays emitted from the leftmost side and the rightmost side of the image elements 1 of even columns in the micro-image array just cannot pass through pinholes corresponding to the image elements positioned in adjacent even columns;
light rays emitted from the leftmost side and the rightmost side of the image elements 2 of the odd columns in the micro-image array just cannot pass through pinholes corresponding to the image elements positioned in the adjacent odd columns;
light rays emitted from the leftmost and rightmost image elements 2 of even columns in the micro-image array cannot just pass through pinholes corresponding to the image elements positioned in adjacent even columns;
light rays emitted from the uppermost edge and the lowermost edge of the image elements 1 of the odd rows in the micro-image array just cannot pass through pinholes corresponding to the image elements positioned in the adjacent odd rows;
light rays emitted from the uppermost edge and the lowermost edge of the image elements 1 of the even lines in the micro-image array just cannot pass through pinholes corresponding to the image elements positioned in the adjacent even lines;
light rays emitted from the uppermost edge and the lowermost edge of the image elements 2 of the odd rows in the micro-image array just cannot pass through pinholes corresponding to the image elements positioned in the adjacent odd rows;
light rays emitted from the uppermost edge and the lowermost edge of the image elements 2 of the even lines in the micro-image array just cannot pass through pinholes corresponding to the image elements positioned in the adjacent even lines;
preferably, the pitch of picture elements 1, the pitch of picture elements 2, the offsetThe pitch of the vibration unit 1, the pitch of the polarization unit 2 and the pitch of the pinholes are allpThe aperture width of the pinhole iswThickness of pinholetThe method comprises the following steps:
wherein, gis the distance between the display screen and the pinhole array.
Preferably, the centers of the polarizing array and the pinhole array of the display screen are corresponding and aligned.
Preferably, the polarization array is closely attached to the pinhole array.
Preferably, the pinhole is a one-dimensional pinhole.
Preferably, the pinhole is a two-dimensional pinhole.
The crosstalk-free and uniform-resolution double-view 3D display method of the same visual area comprises the following steps:
the polarization units 1 and the polarization units 2 with orthogonal polarization directions are alternately arranged in the horizontal and vertical directions, the polarization directions of the adjacent polarization units in the horizontal and vertical directions in the polarization array are orthogonal,
the image element 1 and the image element 2 acquired through the 3D scene 1 and the 3D scene 2 correspond to and are aligned with the polarization unit 1 and the polarization unit 2, respectively;
the polarization unit 1 modulates the light emitted by the image element 1 into polarized light, and the polarized light reconstructs a 3D image 1 through a pinhole corresponding to the image element 1 and can only be seen through the polarized glasses 1;
the polarization unit 2 modulates the light emitted by the image element 2 into polarized light, and the polarized light reconstructs a 3D image 2 through a pinhole corresponding to the image element 2 and can only be seen through the polarized glasses 2;
light rays emitted from the leftmost side and the rightmost side of the image elements 1 of the odd columns in the micro-image array just cannot pass through pinholes corresponding to the image elements positioned in the adjacent odd columns;
light rays emitted from the leftmost side and the rightmost side of the image elements 1 of even columns in the micro-image array just cannot pass through pinholes corresponding to the image elements positioned in adjacent even columns;
light rays emitted from the leftmost side and the rightmost side of the image elements 2 of the odd columns in the micro-image array just cannot pass through pinholes corresponding to the image elements positioned in the adjacent odd columns;
light rays emitted from the leftmost and rightmost image elements 2 of even columns in the micro-image array cannot just pass through pinholes corresponding to the image elements positioned in adjacent even columns;
light rays emitted from the uppermost edge and the lowermost edge of the image elements 1 of the odd rows in the micro-image array just cannot pass through pinholes corresponding to the image elements positioned in the adjacent odd rows;
light rays emitted from the uppermost edge and the lowermost edge of the image elements 1 of the even lines in the micro-image array just cannot pass through pinholes corresponding to the image elements positioned in the adjacent even lines;
light rays emitted from the uppermost edge and the lowermost edge of the image elements 2 of the odd rows in the micro-image array just cannot pass through pinholes corresponding to the image elements positioned in the adjacent odd rows;
light rays emitted from the uppermost edge and the lowermost edge of the image elements 2 of the even lines in the micro-image array just cannot pass through pinholes corresponding to the image elements positioned in the adjacent even lines; crosstalk is eliminated.
Compared with the prior art, the invention has the beneficial effects that:
1. according to the invention, the polarization units 1 and the polarization units 2 are alternately arranged in the horizontal and vertical directions, the image elements 1 and the image elements 2 are respectively corresponding to and aligned with the polarization units 1 and the polarization units 2, so that the resolution of a 3D image is more uniform on the premise of not increasing the resolution of the 3D image, and the display effect is improved;
2. further, the viewing position does not need to be moved, and different 3D images are switched by wearing different polarized glasses;
3. further, the pinhole array makes the light rays emitted by any two image elements 1 not interfere with each other, and the pinhole array makes the light rays emitted by any two image elements 2 not interfere with each other, so that crosstalk is eliminated.
Drawings
FIG. 1 is a block diagram of a dual view 3D display of the present invention
FIG. 2 is a schematic diagram of an arrangement of a polarizing array according to the present invention
FIG. 3 is a schematic diagram showing the arrangement of a microimage array according to the present invention
The graphic reference numerals in the above figures are:
1 display screen, 2 polarization array, 3 pinhole array, 4 polarization glasses 1,5 polarization glasses 2,6 polarization unit 1,7 polarization unit 2,8 microimage array, 9 picture element 1, 10 picture element 2, 11 3d image 1, 12 3d image 2.
Detailed Description
The present invention will be described in further detail with reference to the following detailed description of an exemplary embodiment of the invention. It is noted that the following examples are given for the purpose of illustration only and are not to be construed as limiting the scope of the invention, since numerous insubstantial modifications and adaptations of the invention will be within the scope of the invention as viewed by one skilled in the art from the foregoing disclosure.
The cross-talk-free and uniform-resolution double-vision 3D display device in the same visual area is shown in the figure 1, and is characterized by comprising a display screen, a polarization array, a pinhole array, polarization glasses 1 and polarization glasses 2; the polarization array is formed by alternately arranging the polarization units 1 and the polarization units 2 in the horizontal direction and the vertical direction, wherein the polarization units 1 are orthogonal to the polarization direction of the polarization units 2, and the polarization directions of the adjacent polarization units in the horizontal direction and the vertical direction of the polarization array are orthogonal to each other, as shown in fig. 2; the polarization glasses 1 and the polarization units 1 have the same polarization direction, and the polarization glasses 2 and the polarization units 2 have the same polarization direction;
the display screen is used for displaying a micro-image array, and the micro-image array is formed by alternately arranging image elements 1 and 2 in the horizontal and vertical directions, as shown in fig. 3; the image element 1 is acquired through a 3D scene 1, and the image element 2 is acquired through a 3D scene 2; the image element 1 and the image element 2 correspond to and are aligned with the polarization unit 1 and the polarization unit 2, respectively;
light rays emitted from the leftmost side and the rightmost side of the image elements 1 of the odd columns in the micro-image array just cannot pass through pinholes corresponding to the image elements positioned in the adjacent odd columns;
light rays emitted from the leftmost side and the rightmost side of the image elements 1 of even columns in the micro-image array just cannot pass through pinholes corresponding to the image elements positioned in adjacent even columns;
light rays emitted from the leftmost side and the rightmost side of the image elements 2 of the odd columns in the micro-image array just cannot pass through pinholes corresponding to the image elements positioned in the adjacent odd columns;
light rays emitted from the leftmost and rightmost image elements 2 of even columns in the micro-image array cannot just pass through pinholes corresponding to the image elements positioned in adjacent even columns;
light rays emitted from the uppermost edge and the lowermost edge of the image elements 1 of the odd rows in the micro-image array just cannot pass through pinholes corresponding to the image elements positioned in the adjacent odd rows;
light rays emitted from the uppermost edge and the lowermost edge of the image elements 1 of the even lines in the micro-image array just cannot pass through pinholes corresponding to the image elements positioned in the adjacent even lines;
light rays emitted from the uppermost edge and the lowermost edge of the image elements 2 of the odd rows in the micro-image array just cannot pass through pinholes corresponding to the image elements positioned in the adjacent odd rows;
light rays emitted from the uppermost edge and the lowermost edge of the image elements 2 of the even lines in the micro-image array just cannot pass through pinholes corresponding to the image elements positioned in the adjacent even lines;
preferably, the pitch of the picture elements 1, the pitch of the picture elements 2, the pitch of the polarizing units 1, the pitch of the polarizing units 2, and the pitch of the pinholes are allpThe aperture width of the pinhole iswThickness of pinholetThe method comprises the following steps:
wherein, gis the distance between the display screen and the pinhole array.
Preferably, the centers of the polarizing array and the pinhole array of the display screen are corresponding and aligned.
Preferably, the polarization array is closely attached to the pinhole array.
Preferably, the pinhole is a one-dimensional pinhole.
Preferably, the pinhole is a two-dimensional pinhole.
The crosstalk-free and uniform-resolution double-view 3D display method of the same visual area comprises the following steps:
the polarization units 1 and the polarization units 2 with orthogonal polarization directions are alternately arranged in the horizontal and vertical directions, the polarization directions of the adjacent polarization units in the horizontal and vertical directions in the polarization array are orthogonal,
the image element 1 and the image element 2 acquired through the 3D scene 1 and the 3D scene 2 correspond to and are aligned with the polarization unit 1 and the polarization unit 2, respectively;
the polarization unit 1 modulates the light emitted by the image element 1 into polarized light, and the polarized light reconstructs a 3D image 1 through a pinhole corresponding to the image element 1 and can only be seen through the polarized glasses 1;
the polarization unit 2 modulates the light emitted by the image element 2 into polarized light, and the polarized light reconstructs a 3D image 2 through a pinhole corresponding to the image element 2 and can only be seen through the polarized glasses 2;
light rays emitted from the leftmost side and the rightmost side of the image elements 1 of the odd columns in the micro-image array just cannot pass through pinholes corresponding to the image elements positioned in the adjacent odd columns;
light rays emitted from the leftmost side and the rightmost side of the image elements 1 of even columns in the micro-image array just cannot pass through pinholes corresponding to the image elements positioned in adjacent even columns;
light rays emitted from the leftmost side and the rightmost side of the image elements 2 of the odd columns in the micro-image array just cannot pass through pinholes corresponding to the image elements positioned in the adjacent odd columns;
light rays emitted from the leftmost and rightmost image elements 2 of even columns in the micro-image array cannot just pass through pinholes corresponding to the image elements positioned in adjacent even columns;
light rays emitted from the uppermost edge and the lowermost edge of the image elements 1 of the odd rows in the micro-image array just cannot pass through pinholes corresponding to the image elements positioned in the adjacent odd rows;
light rays emitted from the uppermost edge and the lowermost edge of the image elements 1 of the even lines in the micro-image array just cannot pass through pinholes corresponding to the image elements positioned in the adjacent even lines;
light rays emitted from the uppermost edge and the lowermost edge of the image elements 2 of the odd rows in the micro-image array just cannot pass through pinholes corresponding to the image elements positioned in the adjacent odd rows;
light rays emitted from the uppermost edge and the lowermost edge of the image elements 2 of the even lines in the micro-image array just cannot pass through pinholes corresponding to the image elements positioned in the adjacent even lines; crosstalk is eliminated.
The micro image array, the polarization array and the pinhole array all comprise 20 units, wherein 20 units are arranged in the horizontal direction, 20 units are arranged in the vertical direction, the pitch of the image elements 1, the pitch of the image elements 2, the pitch of the polarization units 1, the pitch of the polarization units 2 and the pitch of pinholes are allp=3mm, the distance between the display screen and the pinhole array isg=2mm, the aperture width of the pinhole isw=1mm, then by the formulaThe thickness of the pinhole array is calculated to be 0.5mm, and the 3D image 1 and the 3D image 2 are respectively provided with 20 rows and 20 columns of pixels; the number of pixels of each row of the 3D image 1 and the 3D image 2 is 10, and the number of pixels of each column is 10; in the conventional integrated imaging double-view 3D display based on the above parameters, the number of pixels in odd lines of the 3D image 1 is 20, and the number of pixels in even lines is 0; the number of pixels in the odd lines of the 3D image 2 is 0 and the number of pixels in the even lines is 20.
Claims (4)
1. The crosstalk-free and uniform-resolution integrated imaging double-vision 3D display device in the same visual area is characterized by comprising a display screen, a polarization array, a pinhole array, a first polarization glasses and a second polarization glasses; the centers of the polarization array and the pinhole array are corresponding and aligned; the polarization array is closely attached to the pinhole array; the polarization array is formed by alternately arranging a first polarization unit and a second polarization unit in the horizontal direction and the vertical direction, wherein the first polarization unit is orthogonal to the polarization direction of the second polarization unit, and the polarization directions of the adjacent polarization units in the horizontal direction and the vertical direction of the polarization array are orthogonal; the polarization direction of the first polarization glasses is the same as that of the first polarization unit, and the polarization direction of the second polarization glasses is the same as that of the second polarization unit; the display screen is used for displaying a micro-image array, and the micro-image array is formed by alternately arranging image elements I and II in the horizontal and vertical directions; the first image element is acquired through a first 3D scene, and the second image element is acquired through a second 3D scene; the first image element and the second image element are respectively corresponding to and aligned with the first polarization unit and the second polarization unit; the pitch of the first image element, the pitch of the second image element, the pitch of the first polarizing unit, the pitch of the second polarizing unit and the pitch of the pinhole are p, and the aperture width of the pinhole is w, so that the thickness t of the pinhole is:
g is the distance between the display screen and the pinhole array; the leftmost and rightmost light rays emitted by the first image element of the odd columns in the micro-image array just cannot pass through pinholes corresponding to the image elements positioned in the adjacent odd columns; light rays emitted from the leftmost side and the rightmost side of the image elements I of even columns in the micro-image array just cannot pass through pinholes corresponding to the image elements positioned in adjacent even columns; the light rays emitted by the leftmost and rightmost of the image elements II of the odd columns in the micro-image array just cannot pass through pinholes corresponding to the image elements positioned in the adjacent odd columns; light rays emitted from the leftmost side and the rightmost side of the image elements II of even columns in the micro-image array just cannot pass through pinholes corresponding to the image elements positioned in adjacent even columns; light rays emitted from the uppermost edge and the lowermost edge of the first image element of the odd lines in the micro-image array just cannot pass through pinholes corresponding to the image elements positioned in the adjacent odd lines; light rays emitted from the uppermost edge and the lowermost edge of the image element I of the even-numbered rows in the micro-image array just cannot pass through pinholes corresponding to the image elements positioned in the adjacent even-numbered rows; light rays emitted from the uppermost edge and the lowermost edge of the image elements II of the odd lines in the micro-image array just cannot pass through pinholes corresponding to the image elements positioned in the adjacent odd lines; the light rays emitted from the uppermost edge and the lowermost edge of the second image elements of the even lines in the micro-image array just cannot pass through pinholes corresponding to the image elements positioned in the adjacent even lines.
2. The co-view area crosstalk-free and uniform resolution integrated imaging dual vision 3D display device of claim 1, wherein the pinhole is a one-dimensional pinhole.
3. The co-view area crosstalk-free and uniform resolution integrated imaging dual vision 3D display device of claim 1, wherein the pinhole is a two-dimensional pinhole.
4. The display method of the co-view area crosstalk-free and uniform resolution integrated imaging dual vision 3D display device of claim 1, comprising: the first polarization unit modulates the light rays emitted by the first image element into polarized light, and the polarized light reconstructs a first 3D image through a pinhole corresponding to the first image element and can only be seen through the first polarization glasses; the second polarization unit modulates the light emitted by the second image element into polarized light, and the polarized light reconstructs a second 3D image through a pinhole corresponding to the second image element and can only be seen through the second polarization glasses.
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| CN103823308A (en) * | 2014-03-04 | 2014-05-28 | 四川大学 | Integrated-imaging double-vision 3D (Three-Dimensional) display device based on polarization gratings |
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