CN212675293U - Double-vision 3D display device based on micro-lens array - Google Patents
Double-vision 3D display device based on micro-lens array Download PDFInfo
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- CN212675293U CN212675293U CN201921195835.1U CN201921195835U CN212675293U CN 212675293 U CN212675293 U CN 212675293U CN 201921195835 U CN201921195835 U CN 201921195835U CN 212675293 U CN212675293 U CN 212675293U
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- 208000003164 Diplopia Diseases 0.000 title abstract description 8
- 208000029444 double vision Diseases 0.000 title abstract description 8
- 230000010287 polarization Effects 0.000 claims abstract description 96
- 239000011295 pitch Substances 0.000 claims abstract description 65
- 239000011521 glass Substances 0.000 claims abstract description 22
- 230000009977 dual effect Effects 0.000 claims description 7
- 238000003384 imaging method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 4
- 230000000694 effects Effects 0.000 description 2
- 238000009828 non-uniform distribution Methods 0.000 description 2
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Abstract
The utility model discloses a double-vision 3D display device based on a micro-lens array, which comprises a display screen, a polarization array, a pinhole array, a micro-lens array, a pair of polarization glasses I and a pair of polarization glasses II; the product of the ratio of the horizontal pitch to the vertical pitch of the pinholes and the ratio of the horizontal aperture width to the vertical aperture width is equal to the ratio of the horizontal width to the vertical width of the pinhole array; the horizontal pitches of the image element I, the image element II, the polarization unit I and the polarization unit II are the same as the horizontal pitch of the corresponding pinholes, and the vertical pitches of the image element I, the image element II, the polarization unit I and the polarization unit II are the same as the vertical pitch of the corresponding pinholes; the horizontal resolution of the 3D image I is the same as the vertical resolution, and the horizontal resolution of the 3D image II is the same as the vertical resolution.
Description
Technical Field
The utility model relates to a 3D shows, more specifically says, the utility model relates to a double vision 3D display device based on microlens array.
Background
The integrated imaging double-vision 3D display is the fusion of a double-vision display technology and an integrated imaging 3D display technology. It may enable the viewer to see different 3D pictures in different viewing directions.
In a conventional integrated imaging dual view 3D display based on a polarized array:
(1) the micro image array comprises two groups of image elements which are arranged alternately in the horizontal direction and the vertical direction.
(2) Both groups of picture elements are square, i.e. the horizontal pitch of both groups of picture elements is equal to the vertical pitch.
(3) The pinholes corresponding to the two groups of image elements are all square, and the horizontal pitch of the pinholes is equal to the vertical pitch.
(4) The polarization units corresponding to the two groups of picture elements are both square, and the horizontal pitches of the polarization units are equal to the vertical pitches.
For televisions and displays, the ratio of the horizontal width to the vertical width of the television and display is 4:3, 16:10, or 16: 9. The disadvantages are that:
(1) the horizontal viewing angle is much smaller than the vertical viewing angle.
(2) The ratio of 3D pixels in the horizontal direction to 3D pixels in the vertical direction of a single 3D image in an integrated imaging dual view 3D display is 4:3, 16:10 or 16: 9. The non-uniform distribution of the 3D pixels affects the viewing effect.
For a handset, the ratio of the horizontal width to the vertical width of the handset is 3:4, 10:16, or 9: 16. The disadvantages are that:
(1) the ratio of 3D pixels in the horizontal direction to 3D pixels in the vertical direction of a single 3D image in an integrated imaging dual view 3D display is 3:4, 10:16 or 9: 16. The non-uniform distribution of the 3D pixels affects the viewing effect.
Disclosure of Invention
The utility model provides a double-vision 3D display device based on microlens array, as shown in attached figures 1 and 2, which is characterized in that the device comprises a display screen, a polarization array, a pinhole array, a microlens array, a polarization glasses I and a polarization glasses II; the polarization array is attached to the display screen, and the pinhole array is attached to the micro-lens array; the polarization array is positioned between the display screen and the pinhole array, and the pinhole array is positioned between the polarization array and the micro-lens array; the display screen, the polarization array, the pinhole array and the micro-lens array are arranged in parallel and are correspondingly aligned; the horizontal widths of the display screen, the polarization array, the pinhole array and the micro-lens array are the same; the vertical widths of the display screen, the polarization array, the pinhole array and the micro-lens array are the same; the display screen is positioned on the focal plane of the micro lens array and is used for displaying the micro image array; as shown in fig. 3, the micro image array is composed of image elements I and image elements II arranged alternately in the horizontal and vertical directions; as shown in fig. 4, the polarization array is composed of a polarization unit I and a polarization unit II which are alternately arranged in the horizontal and vertical directions, and the polarization directions of the polarization unit I and the polarization unit II are orthogonal; the polarization direction of the polarization glasses I is the same as that of the polarization unit I, and the polarization direction of the polarization glasses II is the same as that of the polarization unit II;
as shown in fig. 5, in the pinhole array, the horizontal pitches of all the pinholes are the same, the vertical pitches of all the pinholes are the same, the horizontal aperture widths of all the pinholes are the same, the vertical aperture widths of all the pinholes are the same, and the product of the ratio of the horizontal pitch to the vertical pitch of the pinholes and the ratio of the horizontal aperture width to the vertical aperture width is equal to the ratio of the horizontal width to the vertical width of the pinhole array; the center of each image element I is correspondingly aligned with the center of the corresponding polarization unit I and the center of the corresponding pinhole, and the center of each image element II is correspondingly aligned with the center of the corresponding polarization unit II and the center of the corresponding pinhole; the horizontal pitches of the image element I, the image element II, the polarization unit I and the polarization unit II are the same as the horizontal pitch of the corresponding pinholes, and the vertical pitches of the image element I, the image element II, the polarization unit I and the polarization unit II are the same as the vertical pitch of the corresponding pinholes; the image elements I are all reconstructed into a plurality of 3D images I through corresponding pinholes and a plurality of corresponding micro lenses, and are combined into a high-resolution 3D image I in a viewing area, and the high-resolution 3D image I can be seen only through polarized glasses I; the image elements II are all reconstructed into a plurality of 3D images II through the corresponding pinholes and the corresponding microlenses, and are combined into a high-resolution 3D image II in a viewing area, and the high-resolution 3D image II can be seen only through the polarized glasses II; the horizontal resolution and the vertical resolution of the 3D image I are the same, and the horizontal resolution and the vertical resolution of the 3D image II are the same; the 3D image I has the same horizontal resolution as the 3D image II, and the 3D image I has the same vertical resolution as the 3D image II.
Preferably, the horizontal pitch and the vertical pitch of the pinholes are each a multiple of the pitch of the microlenses; the horizontal aperture width and the vertical aperture width of the pinhole are each a multiple of the pitch of the microlenses.
Preferably, the horizontal resolution of the 3D image IR 1Vertical resolutionR 2Comprises the following steps:
wherein,pis the pitch of the micro-lenses,wis the horizontal aperture width of the pinhole,mis the number of picture elements I in the horizontal direction in the micro-image array.
Preferably, the ratio of the horizontal pitch to the vertical pitch of the pinholes is equal to the ratio of the horizontal width to the vertical width of the pinhole array; the horizontal aperture width of the pinhole is equal to the vertical aperture width.
Preferably, the horizontal viewing angle of the 3D image I is the same as that of the 3D image II, and the vertical viewing angle of the 3D image I is the same as that of the 3D image II; horizontal viewing perspective of 3D image Iθ 1Vertical viewing angleθ 2Respectively as follows:
wherein,qis the horizontal pitch of the pinholes and,pis the pitch of the micro-lenses,wis the horizontal aperture width of the pinhole,mthe number of picture elements I in the horizontal direction in the micro-image array,lis the viewing distance, the distance between the viewer,fis the focal length of the micro-lens,ais the ratio of the vertical width to the horizontal width of the pinhole array.
Drawings
FIG. 1 is a schematic diagram of the structure and parameters in the horizontal direction of the present invention
FIG. 2 is a schematic diagram of the structure and parameters in the vertical direction of the present invention
FIG. 3 is a schematic structural view of a micro-image array according to the present invention
FIG. 4 is a schematic structural diagram of a polarization array according to the present invention
FIG. 5 is a schematic diagram of a pinhole array of the present invention
The reference numbers in the figures are:
1. the display screen, 2, a polarization array, 3, a pinhole array, 4, a micro-lens array, 5, polarization glasses I, 6, polarization glasses II, 7, an image element I, 8, an image element II, 9, a polarization unit I, 10 and a polarization unit II.
It should be understood that the above-described figures are merely schematic and are not drawn to scale.
Detailed Description
An exemplary embodiment of the present invention based on a dual-view 3D display device of a microlens array is described in detail below, and the present invention is further described in detail. It is necessary to point out here that the following examples are only used for further illustration of the present invention, and should not be understood as limiting the scope of the present invention, and those skilled in the art can make some non-essential improvements and modifications to the present invention according to the above-mentioned contents of the present invention, and still fall into the scope of the present invention.
The utility model provides a double-vision 3D display device based on microlens array, as shown in attached figures 1 and 2, which is characterized in that the device comprises a display screen, a polarization array, a pinhole array, a microlens array, a polarization glasses I and a polarization glasses II; the polarization array is attached to the display screen, and the pinhole array is attached to the micro-lens array; the polarization array is positioned between the display screen and the pinhole array, and the pinhole array is positioned between the polarization array and the micro-lens array; the display screen, the polarization array, the pinhole array and the micro-lens array are arranged in parallel and are correspondingly aligned; the horizontal widths of the display screen, the polarization array, the pinhole array and the micro-lens array are the same; the vertical widths of the display screen, the polarization array, the pinhole array and the micro-lens array are the same; the display screen is positioned on the focal plane of the micro lens array and is used for displaying the micro image array; as shown in fig. 3, the micro image array is composed of image elements I and image elements II arranged alternately in the horizontal and vertical directions; as shown in fig. 4, the polarization array is composed of a polarization unit I and a polarization unit II which are alternately arranged in the horizontal and vertical directions, and the polarization directions of the polarization unit I and the polarization unit II are orthogonal; the polarization direction of the polarization glasses I is the same as that of the polarization unit I, and the polarization direction of the polarization glasses II is the same as that of the polarization unit II;
as shown in fig. 5, in the pinhole array, the horizontal pitches of all the pinholes are the same, the vertical pitches of all the pinholes are the same, the horizontal aperture widths of all the pinholes are the same, the vertical aperture widths of all the pinholes are the same, and the product of the ratio of the horizontal pitch to the vertical pitch of the pinholes and the ratio of the horizontal aperture width to the vertical aperture width is equal to the ratio of the horizontal width to the vertical width of the pinhole array; the center of each image element I is correspondingly aligned with the center of the corresponding polarization unit I and the center of the corresponding pinhole, and the center of each image element II is correspondingly aligned with the center of the corresponding polarization unit II and the center of the corresponding pinhole; the horizontal pitches of the image element I, the image element II, the polarization unit I and the polarization unit II are the same as the horizontal pitch of the corresponding pinholes, and the vertical pitches of the image element I, the image element II, the polarization unit I and the polarization unit II are the same as the vertical pitch of the corresponding pinholes; the image elements I are all reconstructed into a plurality of 3D images I through corresponding pinholes and a plurality of corresponding micro lenses, and are combined into a high-resolution 3D image I in a viewing area, and the high-resolution 3D image I can be seen only through polarized glasses I; the image elements II are all reconstructed into a plurality of 3D images II through the corresponding pinholes and the corresponding microlenses, and are combined into a high-resolution 3D image II in a viewing area, and the high-resolution 3D image II can be seen only through the polarized glasses II; the horizontal resolution and the vertical resolution of the 3D image I are the same, and the horizontal resolution and the vertical resolution of the 3D image II are the same; the 3D image I has the same horizontal resolution as the 3D image II, and the 3D image I has the same vertical resolution as the 3D image II.
Preferably, the horizontal pitch and the vertical pitch of the pinholes are each a multiple of the pitch of the microlenses; the horizontal aperture width and the vertical aperture width of the pinhole are each a multiple of the pitch of the microlenses.
Preferably, the horizontal resolution of the 3D image IR 1Vertical resolutionR 2Comprises the following steps:
wherein,pis the pitch of the micro-lenses,wis the horizontal aperture width of the pinhole,mis the number of picture elements I in the horizontal direction in the micro-image array.
Preferably, the ratio of the horizontal pitch to the vertical pitch of the pinholes is equal to the ratio of the horizontal width to the vertical width of the pinhole array; the horizontal aperture width of the pinhole is equal to the vertical aperture width.
Preferably, the horizontal viewing angle of the 3D image I is the same as that of the 3D image II, and the vertical viewing angle of the 3D image I is the same as that of the 3D image II; horizontal viewing perspective of 3D image Iθ 1Vertical viewing angleθ 2Respectively as follows:
wherein,qis the horizontal pitch of the pinholes and,pis the pitch of the micro-lenses,wis the horizontal aperture width of the pinhole,mthe number of picture elements I in the horizontal direction in the micro-image array,lis the viewing distance, the distance between the viewer,fis the focal length of the micro-lens,ais the ratio of the vertical width to the horizontal width of the pinhole array.
The ratio of the horizontal width to the vertical width of the pinhole array is 4:3, the number of image elements I in the horizontal direction in the micro-image array is 30, the horizontal pitch of the pinholes is 8mm, the horizontal aperture width of the pinholes is 2mm, the pitch of the micro-lenses is 1mm, the focal length of the micro-lenses is 5mm, the viewing distance is 1000mm, the horizontal resolutions of the 3D image I and the 3D image II obtained by calculation according to the formulas (1), (2) and (3) are both 60, the vertical resolutions are both 60, the horizontal viewing angles are both 50 degrees, and the vertical viewing angles are both 36 degrees.
Claims (5)
1. The double-view 3D display device based on the micro-lens array is characterized by comprising a display screen, a polarization array, a pinhole array, the micro-lens array, a pair of polarization glasses I and a pair of polarization glasses II; the polarization array is attached to the display screen, and the pinhole array is attached to the micro-lens array; the polarization array is positioned between the display screen and the pinhole array, and the pinhole array is positioned between the polarization array and the micro-lens array; the display screen, the polarization array, the pinhole array and the micro-lens array are arranged in parallel and are correspondingly aligned; the horizontal widths of the display screen, the polarization array, the pinhole array and the micro-lens array are the same; the vertical widths of the display screen, the polarization array, the pinhole array and the micro-lens array are the same; the display screen is positioned on the focal plane of the micro lens array and is used for displaying the micro image array; the micro image array is formed by alternately arranging image elements I and image elements II in the horizontal direction and the vertical direction; the polarization array is formed by alternately arranging a polarization unit I and a polarization unit II in the horizontal and vertical directions, and the polarization directions of the polarization unit I and the polarization unit II are orthogonal; the polarization direction of the polarization glasses I is the same as that of the polarization unit I, and the polarization direction of the polarization glasses II is the same as that of the polarization unit II; in the pinhole array, the horizontal pitches of all pinholes are the same, the vertical pitches of all pinholes are the same, the horizontal aperture widths of all pinholes are the same, the vertical aperture widths of all pinholes are the same, and the product of the ratio of the horizontal pitch to the vertical pitch of the pinholes and the ratio of the horizontal aperture width to the vertical aperture width is equal to the ratio of the horizontal width to the vertical width of the pinhole array; the center of each image element I is correspondingly aligned with the center of the corresponding polarization unit I and the center of the corresponding pinhole, and the center of each image element II is correspondingly aligned with the center of the corresponding polarization unit II and the center of the corresponding pinhole; the horizontal pitches of the image element I, the image element II, the polarization unit I and the polarization unit II are the same as the horizontal pitch of the corresponding pinholes, and the vertical pitches of the image element I, the image element II, the polarization unit I and the polarization unit II are the same as the vertical pitch of the corresponding pinholes; the image elements I are all reconstructed into a plurality of 3D images I through corresponding pinholes and a plurality of corresponding micro lenses, and are combined into a high-resolution 3D image I in a viewing area, and the high-resolution 3D image I can be seen only through polarized glasses I; the image elements II are all reconstructed into a plurality of 3D images II through the corresponding pinholes and the corresponding microlenses, and are combined into a high-resolution 3D image II in a viewing area, and the high-resolution 3D image II can be seen only through the polarized glasses II; the horizontal resolution and the vertical resolution of the 3D image I are the same, and the horizontal resolution and the vertical resolution of the 3D image II are the same; the 3D image I has the same horizontal resolution as the 3D image II, and the 3D image I has the same vertical resolution as the 3D image II.
2. A lenticular array-based dual view 3D display device according to claim 1, wherein the horizontal pitch and vertical pitch of the pinholes are each a multiple of the pitch of the lenticules; the horizontal aperture width and the vertical aperture width of the pinhole are each a multiple of the pitch of the microlenses.
3. A lenticular array-based dual view 3D display device according to claim 1, wherein the horizontal resolution of the 3D image IR 1Vertical resolutionR 2Comprises the following steps:
wherein,pis the pitch of the micro-lenses,wis the horizontal aperture width of the pinhole,mis the number of picture elements I in the horizontal direction in the micro-image array.
4. A lenticular array-based dual view 3D display device according to claim 1, wherein the ratio of the horizontal pitch to the vertical pitch of the pinholes is equal to the ratio of the horizontal width to the vertical width of the pinhole array; the horizontal aperture width of the pinhole is equal to the vertical aperture width.
5. The dual view 3D display device based on microlens array as claimed in claim 4, wherein the horizontal viewing angle of 3D image I is the same as that of 3D image II, and the vertical viewing angle of 3D image I is the same as that of 3D image II; horizontal viewing perspective of 3D image Iθ 1Vertical viewing angleθ 2Respectively as follows:
wherein,qis the horizontal pitch of the pinholes and,pis the pitch of the micro-lenses,wis the horizontal aperture width of the pinhole,mthe number of picture elements I in the horizontal direction in the micro-image array,lis the viewing distance, the distance between the viewer,fis the focal length of the micro-lens,ais the ratio of the vertical width to the horizontal width of the pinhole array.
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| Publication number | Priority date | Publication date | Assignee | Title |
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| CN110361871A (en) * | 2019-07-28 | 2019-10-22 | 成都工业学院 | Double vision 3D display device based on microlens array |
| CN110361871B (en) * | 2019-07-28 | 2024-03-26 | 成都航空职业技术学院 | Double-vision 3D display device based on micro-lens array |
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