CN110361871B - 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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- CN110361871B CN110361871B CN201910685910.0A CN201910685910A CN110361871B CN 110361871 B CN110361871 B CN 110361871B CN 201910685910 A CN201910685910 A CN 201910685910A CN 110361871 B CN110361871 B CN 110361871B
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- 208000003164 Diplopia Diseases 0.000 title claims abstract description 6
- 208000029444 double vision Diseases 0.000 title claims abstract description 6
- 239000011295 pitch Substances 0.000 claims abstract description 65
- 230000010287 polarization Effects 0.000 claims abstract description 63
- 239000011521 glass Substances 0.000 claims abstract description 22
- 238000000034 method Methods 0.000 claims description 6
- 230000009977 dual effect Effects 0.000 description 5
- 238000003384 imaging method Methods 0.000 description 5
- 238000010586 diagram Methods 0.000 description 3
- 230000007547 defect Effects 0.000 description 2
- 230000000694 effects Effects 0.000 description 2
- 238000009828 non-uniform distribution Methods 0.000 description 2
- 230000006978 adaptation Effects 0.000 description 1
- 238000003491 array Methods 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
Classifications
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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
Abstract
The invention 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, polarized glasses I and polarized 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 polarizing unit I and the polarizing unit II are the same as the horizontal pitches of the corresponding pinholes, and the vertical pitches of the image element I, the image element II, the polarizing unit I and the polarizing unit II are the same as the vertical pitches 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 present invention relates to 3D displays, and more particularly, to a lenticular array-based dual vision 3D display device.
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.
In conventional integrated imaging dual vision 3D displays based on polarizing arrays:
(1) The micro-image array comprises two groups of image elements, and the two groups of image elements are arranged at intervals in the horizontal and vertical directions.
(2) Both sets of picture elements are square, i.e. the horizontal pitch of the two sets of picture elements is equal to the vertical pitch.
(3) The pinholes corresponding to the two groups of picture elements are square, and the horizontal pitch of the pinholes is equal to the vertical pitch.
(4) The polarization units corresponding to the two groups of image elements are square, and the horizontal pitch of the polarization units is equal to the vertical pitch.
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 defects 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 3D pixels affects the viewing effect.
For a cell phone, the ratio of the horizontal width to the vertical width of the cell phone is 3:4, 10:16, or 9:16. The defects 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 3D pixels affects the viewing effect.
Disclosure of Invention
The invention provides a double-vision 3D display device based on a micro-lens array, which is shown in figures 1 and 2 and is characterized by comprising a display screen, a polarization array, a pinhole array, a micro-lens 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 aligned correspondingly; the horizontal widths of the display screen, the polarization array, the pinhole array and the microlens 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 II which are alternately arranged in the horizontal and vertical directions; as shown in fig. 4, the polarization array is formed by alternately arranging a polarization unit I and a polarization unit II in horizontal and vertical directions, wherein the polarization unit I is orthogonal to the polarization direction of the polarization unit II; the polarization direction of the polarized glasses I is the same as that of the polarized unit I, and the polarization direction of the polarized glasses II is the same as that of the polarized unit II;
as shown in fig. 5, 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 to 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 centers of the corresponding polarization unit I and the pinhole, and the center of each image element II is correspondingly aligned with the centers of the corresponding polarization unit II and the pinhole; the horizontal pitches of the image element I, the image element II, the polarizing unit I and the polarizing unit II are the same as the horizontal pitches of the corresponding pinholes, and the vertical pitches of the image element I, the image element II, the polarizing unit I and the polarizing unit II are the same as the vertical pitches of the corresponding pinholes; the image element I reconstructs a plurality of 3D images I through corresponding pinholes and a plurality of corresponding microlenses, and the images I are combined into a high-resolution 3D image I in a viewing area and can only be seen through polarized glasses I; the image element II reconstructs a plurality of 3D images II through corresponding pinholes and a plurality of corresponding microlenses, and the images II are combined into a high-resolution 3D image II in a viewing area and can only be seen through polarized glasses II; 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; the horizontal resolution of the 3D image I is the same as that of the 3D image II, and the vertical resolution of the 3D image I is the same as that of 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 pinholes are each a multiple of the pitch of the microlenses.
Preferably, the horizontal resolution R of the 3D image I 1 Vertical resolution R 2 The method comprises the following steps:
where p is the pitch of the microlenses, w is the horizontal aperture width of the pinholes, and m is the number of image elements I in the horizontal direction in the microimage 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 array of pinholes; the horizontal aperture width of the pinholes 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 angle θ of 3D image I 1 Vertical viewing angle θ 2 The method comprises the following steps of:
where q is the horizontal pitch of the pinholes, p is the pitch of the microlenses, w is the horizontal aperture width of the pinholes, m the number of image elements I in the horizontal direction of the microimage array, l is the viewing distance, f is the focal length of the microlenses, and a is the ratio of the vertical width to the horizontal width of the pinhole array.
Drawings
FIG. 1 is a schematic view of the structure and parameters in the horizontal direction of the present invention
FIG. 2 is a schematic view of the structure and parameters in the vertical direction of the present invention
FIG. 3 is a schematic structural diagram of a microimage array according to the present invention
FIG. 4 is a schematic diagram of a polarization array according to the present invention
FIG. 5 is a schematic diagram of a pinhole array according to the present invention
The graphic reference numerals in the above figures are:
1. the display screen, 2, polarization array, 3, pinhole array, 4, microlens array, 5, polarization glasses I,6, polarization glasses II,7, picture element I,8, picture element II,9, polarization unit I,10, polarization unit II.
It should be understood that the above-described figures are merely schematic and are not drawn to scale.
Detailed Description
The present invention will be described in further detail with reference to an exemplary embodiment of a lenticular array-based dual vision 3D display device of the present 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 invention provides a double-vision 3D display device based on a micro-lens array, which is shown in figures 1 and 2 and is characterized by comprising a display screen, a polarization array, a pinhole array, a micro-lens 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 aligned correspondingly; the horizontal widths of the display screen, the polarization array, the pinhole array and the microlens 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 II which are alternately arranged in the horizontal and vertical directions; as shown in fig. 4, the polarization array is formed by alternately arranging a polarization unit I and a polarization unit II in horizontal and vertical directions, wherein the polarization unit I is orthogonal to the polarization direction of the polarization unit II; the polarization direction of the polarized glasses I is the same as that of the polarized unit I, and the polarization direction of the polarized glasses II is the same as that of the polarized unit II;
as shown in fig. 5, 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 to 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 centers of the corresponding polarization unit I and the pinhole, and the center of each image element II is correspondingly aligned with the centers of the corresponding polarization unit II and the pinhole; the horizontal pitches of the image element I, the image element II, the polarizing unit I and the polarizing unit II are the same as the horizontal pitches of the corresponding pinholes, and the vertical pitches of the image element I, the image element II, the polarizing unit I and the polarizing unit II are the same as the vertical pitches of the corresponding pinholes; the image element I reconstructs a plurality of 3D images I through corresponding pinholes and a plurality of corresponding microlenses, and the images I are combined into a high-resolution 3D image I in a viewing area and can only be seen through polarized glasses I; the image element II reconstructs a plurality of 3D images II through corresponding pinholes and a plurality of corresponding microlenses, and the images II are combined into a high-resolution 3D image II in a viewing area and can only be seen through polarized glasses II; 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; the horizontal resolution of the 3D image I is the same as that of the 3D image II, and the vertical resolution of the 3D image I is the same as that of 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 pinholes are each a multiple of the pitch of the microlenses.
Preferably, the horizontal resolution R of the 3D image I 1 Vertical resolution R 2 The method comprises the following steps:
where p is the pitch of the microlenses, w is the horizontal aperture width of the pinholes, and m is the number of image elements I in the horizontal direction in the microimage 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 array of pinholes; the horizontal aperture width of the pinholes 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 angle θ of 3D image I 1 Vertical viewing angle θ 2 The method comprises the following steps of:
where q is the horizontal pitch of the pinholes, p is the pitch of the microlenses, w is the horizontal aperture width of the pinholes, m the number of image elements I in the horizontal direction of the microimage array, l is the viewing distance, f is the focal length of the microlenses, and a is 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 of the micro-image array is 30, the horizontal pitch of pinholes is 8mm, the horizontal aperture width of pinholes is 2mm, the pitch of microlenses is 1mm, the focal length of the microlenses is 5mm, and the viewing distance is 1000mm, then the horizontal resolutions of the 3D image I and the 3D image II obtained by calculation of formulas (1), (2) and (3) are 60, the vertical resolutions are 60, the horizontal viewing angles are 50 degrees, and the vertical viewing angles are 36 degrees.
Claims (2)
1. The double-vision 3D display device based on the micro-lens array is characterized by comprising a display screen, a polarization array, a pinhole array, a micro-lens array, polarized glasses I and polarized 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 aligned correspondingly; display screen, polarizing array, pinhole array and microlens arrayThe horizontal widths 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 II in the horizontal and vertical directions; the polarization array is formed by alternately arranging a polarization unit I and a polarization unit II in the horizontal direction and the vertical direction, and the polarization direction of the polarization unit I is orthogonal to that of the polarization unit II; the polarization direction of the polarized glasses I is the same as that of the polarized unit I, and the polarization direction of the polarized glasses II is the same as that of the polarized 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 centers of the corresponding polarization unit I and the pinhole, and the center of each image element II is correspondingly aligned with the centers of the corresponding polarization unit II and the pinhole; the horizontal pitches of the image element I, the image element II, the polarizing unit I and the polarizing unit II are the same as the horizontal pitches of the corresponding pinholes, and the vertical pitches of the image element I, the image element II, the polarizing unit I and the polarizing unit II are the same as the vertical pitches of the corresponding pinholes; the horizontal pitch and the vertical pitch of the pinholes are multiples of the pitch of the microlenses; 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; the horizontal aperture width and the vertical aperture width of the pinholes are multiples of the pitch of the microlenses; the image element I reconstructs a plurality of 3D images I through corresponding pinholes and a plurality of corresponding microlenses, and the images I are combined into a high-resolution 3D image I in a viewing area and can only be seen through polarized glasses I; the image element II reconstructs a plurality of 3D images II through corresponding pinholes and a plurality of corresponding microlenses, and the images II are combined into a high-resolution 3D image II in a viewing area and can only be seen through polarized glasses II; the horizontal resolution of the 3D image I is the same as the vertical resolution, the horizontal resolution of the 3D image IIThe rate is the same as the vertical resolution; the horizontal resolution of the 3D image I is the same as that of the 3D image II, and the vertical resolution of the 3D image I is the same as that of the 3D image II; horizontal resolution R of 3D image I 1 Vertical resolution R 2 The method comprises the following steps:
where p is the pitch of the microlenses, w is the horizontal aperture width of the pinholes, and m is the number of image elements I in the horizontal direction in the microimage array.
2. The lenticular array-based dual-view 3D display device of claim 1, wherein the horizontal viewing angle of the 3D image I is the same as the horizontal viewing angle of the 3D image II, and the vertical viewing angle of the 3D image I is the same as the vertical viewing angle of the 3D image II; horizontal viewing angle θ of 3D image I 1 Vertical viewing angle θ 2 The method comprises the following steps of:
where q is the horizontal pitch of the pinholes, p is the pitch of the microlenses, w is the horizontal aperture width of the pinholes, m the number of image elements I in the horizontal direction of the microimage array, l is the viewing distance, f is the focal length of the microlenses, and a is the ratio of the vertical width to the horizontal width of the pinhole array.
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