CN111025678A - Integrated imaging double-view 3D display device based on gradient aperture pinhole array - Google Patents
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- CN111025678A CN111025678A CN202010101482.5A CN202010101482A CN111025678A CN 111025678 A CN111025678 A CN 111025678A CN 202010101482 A CN202010101482 A CN 202010101482A CN 111025678 A CN111025678 A CN 111025678A
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Abstract
The invention discloses an integrated imaging double-view 3D display device based on a gradient aperture pinhole array, which comprises a display screen, a polaroid, a gradient aperture pinhole array, a pair of polarized glasses I and a pair of polarized glasses II, wherein the display screen is provided with a plurality of display screens; the ratio of the vertical pitch to the horizontal pitch of the pinholes is equal to twice the ratio of the vertical width to the horizontal width of the graded-aperture pinhole array; the horizontal aperture widths of continuous rows of pinholes in the center of the gradually-changed aperture pinhole array are the same, and the horizontal aperture widths of the gradually-changed aperture pinhole array are gradually reduced from the center to the left side and the right side; the vertical aperture widths of continuous rows of pinholes in the center of the gradually-changed aperture pinhole array are the same, and the vertical aperture widths of the gradually-changed aperture pinhole array are gradually reduced from the center to the upper side and the lower side.
Description
Technical Field
The invention relates to 3D display, in particular to an integrated imaging double-vision 3D display device based on a gradient aperture pinhole 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. The traditional integrated imaging double-view 3D display device based on the gradual-change aperture pinhole array has the following defects:
(1) the aperture widths of two adjacent pinholes in the horizontal direction and the vertical direction in the traditional gradually-changed aperture pinhole array are changed in an equal difference relation, so that the brightness of two adjacent 3D pixels has an equal difference relation, and the watching effect of a 3D image is influenced.
(2) The aperture width of the pinhole is generally not less than 5% of the pinhole pitch, and too small an aperture width causes problems such as diffraction and too low brightness to be viewed. The aperture width of the pinholes in the traditional gradual-change aperture pinhole array is gradually reduced from the middle to two sides in an equal difference relationship. Therefore, the number of pinholes in the conventional graded-aperture pinhole array is limited, and the conventional graded-aperture pinhole array cannot be widely applied.
(3) Horizontal resolution is not equal to vertical resolution, and the problem of poor viewing experience caused by low resolution is further deepened.
Disclosure of Invention
The invention provides an integrated imaging double-view 3D display device based on a gradient aperture pinhole array, which is shown in attached figures 1, 2 and 3 and is characterized by comprising a display screen, a polaroid, a gradient aperture pinhole array, a pair of polarized glasses I and a pair of polarized glasses II; the display screen, the polaroid and the gradient aperture pinhole array are sequentially arranged in parallel and correspondingly aligned; the polaroid is attached to the display screen; as shown in fig. 4, in the gradient-aperture pinhole array, the horizontal aperture widths of the pinholes in any column are the same, and the vertical aperture widths of the pinholes in any row are the same; the horizontal aperture widths of continuous rows of pinholes in the center of the gradually-changed aperture pinhole array are the same, and the horizontal aperture widths of the gradually-changed aperture pinhole array are gradually reduced from the center to the left side and the right side; the vertical aperture widths of continuous rows of pinholes in the center of the gradually-changed aperture pinhole array are the same, and the vertical aperture widths of the gradually-changed aperture pinhole array are gradually reduced from the center to the upper side and the lower side; first in a graded aperture pinhole arrayiHorizontal aperture width of row pin holesH i The first stepjVertical aperture width of pinholeV j Calculated from the following formula
Wherein the content of the first and second substances,pis the horizontal pitch of the pinholes and,qis the vertical pitch of the pinholes and,ais a continuous multi-row pinhole with the same horizontal aperture width positioned at the center of the pinhole array with gradually-changed apertureThe number of columns of (a) is,bis the number of rows of continuous rows of pinholes with the same vertical aperture width at the center of the gradient aperture pinhole array,wthe horizontal aperture widths of continuous multi-row pinholes with the same horizontal aperture width are positioned at the center of the gradient aperture pinhole array,vthe vertical aperture widths of continuous rows of pinholes with the same vertical aperture width are positioned at the center of the gradient aperture pinhole array,mis the number of pinholes in the horizontal direction in the pinhole array with gradually changed aperture,nis the number of pinholes in the vertical direction in the pinhole array with gradually changed aperture,lis the viewing distance, the distance between the viewer,gis the distance between the display screen and the pinhole array with gradually changed aperture; the display screen is used for displaying the micro-image array, and the micro-image array comprises a picture element I and a picture element II; the horizontal pitch and the vertical pitch of the image element I are respectively equal to the horizontal pitch and the vertical pitch of the pinhole; the horizontal pitch and the vertical pitch of the image element II are respectively equal to the horizontal pitch and the vertical pitch of the pinhole; as shown in fig. 5, the polarizer includes a sub-polarizer I and a sub-polarizer II, the polarization direction of the sub-polarizer I is orthogonal to the polarization direction of the sub-polarizer II; the image element I is correspondingly aligned with the sub-polaroid I, and the image element II is correspondingly aligned with the sub-polaroid II; the polarization direction of the polarization glasses I is the same as that of the sub-polarizing plate I, and the polarization direction of the polarization glasses II is the same as that of the sub-polarizing plate II; the image element I reconstructs a 3D image I through the sub-polaroid I and the corresponding pinhole array, and can only be seen through polarized glasses I; and the image element II reconstructs a 3D image II through the sub-polaroid II and the corresponding pinhole array, and the 3D image II can only be seen through the polarized glasses II.
Preferably, the horizontal widths of the display screen, the polarizing plate and the gradient aperture pinhole array are the same, and the vertical widths of the display screen, the polarizing plate and the gradient aperture pinhole array are the same.
Preferably, the ratio of the vertical pitch to the horizontal pitch of the pinholes is equal to twice the ratio of the vertical width to the horizontal width of the graded aperture pinhole array.
Preferably, the picture element I is located in the left half of the display screen and the picture element II is located in the right half of the display screen; the sub-polarizing film I is correspondingly aligned with the left half part of the display screen, and the sub-polarizing film II is correspondingly aligned with the right half part of the display screen; the horizontal widths of the sub-polarizer I and the sub-polarizer II are equal to half of the horizontal width of the display panel, and the vertical widths of the sub-polarizer I and the sub-polarizer II are equal to the vertical width of the display panel.
Preferably, the horizontal resolution, the vertical resolution, the horizontal viewing angle, the vertical viewing angle and the optical efficiency of the 3D image I and the 3D image II are respectively equal; horizontal resolution of each 3D imageR 1Vertical resolutionR 2Horizontal viewing angleθ 1Vertical viewing angleθ 2And optical efficiencyφRespectively as follows:
wherein the content of the first and second substances,pis the horizontal pitch of the pinholes and,ais the number of rows of continuous multi-row pinholes which are positioned at the center of the pinhole array with gradually changed aperture and have the same horizontal aperture width,bis the number of rows of continuous rows of pinholes with the same vertical aperture width at the center of the gradient aperture pinhole array,wthe horizontal aperture widths of continuous multi-row pinholes with the same horizontal aperture width are positioned at the center of the gradient aperture pinhole array,vthe vertical aperture widths of continuous rows of pinholes with the same vertical aperture width are positioned at the center of the gradient aperture pinhole array,mis the number of pinholes in the horizontal direction in the pinhole array with gradually-changed aperture，lIs the viewing distance, the distance between the viewer,gis the distance between the display screen and the pinhole array with gradually changed aperture,cis the ratio of the vertical width to the horizontal width of the graded aperture pinhole array.
Drawings
FIG. 1 is a schematic diagram of the structure and horizontal parameters of the present invention
FIG. 2 is a schematic diagram showing the parameters of the image element I and the sub-polarizer I in the vertical direction
FIG. 3 is a schematic diagram showing the parameters of the image element II and the sub-polarizer II in the vertical direction
FIG. 4 is a schematic structural diagram of a pinhole array with gradually changing aperture according to the present invention
FIG. 5 is a schematic view showing the structure of a polarizing plate of the present invention
The reference numbers in the figures are:
1. the display comprises a display screen, 2 polarizer, 3 gradient aperture pinhole array, 4 polarizing glasses I, 5 polarizing glasses II, 6 image element I, 7 image element II, 8 sub polarizer I, 9 sub polarizer 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 below with reference to a detailed description of an exemplary embodiment of an integrated imaging dual-view 3D display device based on a graded aperture pinhole array according to the present invention. It should be noted that the following examples are only for illustrative purposes and should not be construed as limiting the scope of the present invention, and that the skilled person in the art may make modifications and adaptations of the present invention without departing from the scope of the present invention.
The invention provides an integrated imaging double-view 3D display device based on a gradient aperture pinhole array, which is shown in attached figures 1, 2 and 3 and is characterized by comprising a display screen, a polaroid, a gradient aperture pinhole array, a pair of polarized glasses I and a pair of polarized glasses II; the display screen, the polaroid and the gradient aperture pinhole array are sequentially arranged in parallel and correspondingly aligned; the polaroid is attached to the display screen; as shown in figure 4In the gradient aperture pinhole array, the horizontal aperture widths of the pinholes in any column are the same, and the vertical aperture widths of the pinholes in any row are the same; the horizontal aperture widths of continuous rows of pinholes in the center of the gradually-changed aperture pinhole array are the same, and the horizontal aperture widths of the gradually-changed aperture pinhole array are gradually reduced from the center to the left side and the right side; the vertical aperture widths of continuous rows of pinholes in the center of the gradually-changed aperture pinhole array are the same, and the vertical aperture widths of the gradually-changed aperture pinhole array are gradually reduced from the center to the upper side and the lower side; first in a graded aperture pinhole arrayiHorizontal aperture width of row pin holesH i The first stepjVertical aperture width of pinholeV j Calculated from the following formula
Wherein the content of the first and second substances,pis the horizontal pitch of the pinholes and,qis the vertical pitch of the pinholes and,ais the number of rows of continuous multi-row pinholes which are positioned at the center of the pinhole array with gradually changed aperture and have the same horizontal aperture width,bis the number of rows of continuous rows of pinholes with the same vertical aperture width at the center of the gradient aperture pinhole array,wthe horizontal aperture widths of continuous multi-row pinholes with the same horizontal aperture width are positioned at the center of the gradient aperture pinhole array,vthe vertical aperture widths of continuous rows of pinholes with the same vertical aperture width are positioned at the center of the gradient aperture pinhole array,mis the number of pinholes in the horizontal direction in the pinhole array with gradually changed aperture,nis the number of pinholes in the vertical direction in the pinhole array with gradually changed aperture,lis the viewing distance, the distance between the viewer,gis the distance between the display screen and the pinhole array with gradually changed aperture; the display screen is used for displaying the micro-image array, and the micro-image array comprises a picture element I and a picture element II; the horizontal pitch and the vertical pitch of the image element I are respectively equal to the horizontal pitch and the vertical pitch of the pinhole; the horizontal pitch and the vertical pitch of the picture elements II are respectively equal to the pinsHorizontal and vertical pitches of the holes; as shown in fig. 5, the polarizer includes a sub-polarizer I and a sub-polarizer II, the polarization direction of the sub-polarizer I is orthogonal to the polarization direction of the sub-polarizer II; the image element I is correspondingly aligned with the sub-polaroid I, and the image element II is correspondingly aligned with the sub-polaroid II; the polarization direction of the polarization glasses I is the same as that of the sub-polarizing plate I, and the polarization direction of the polarization glasses II is the same as that of the sub-polarizing plate II; the image element I reconstructs a 3D image I through the sub-polaroid I and the corresponding pinhole array, and can only be seen through polarized glasses I; and the image element II reconstructs a 3D image II through the sub-polaroid II and the corresponding pinhole array, and the 3D image II can only be seen through the polarized glasses II.
Preferably, the horizontal widths of the display screen, the polarizing plate and the gradient aperture pinhole array are the same, and the vertical widths of the display screen, the polarizing plate and the gradient aperture pinhole array are the same.
Preferably, the ratio of the vertical pitch to the horizontal pitch of the pinholes is equal to twice the ratio of the vertical width to the horizontal width of the graded aperture pinhole array.
Preferably, the picture element I is located in the left half of the display screen and the picture element II is located in the right half of the display screen; the sub-polarizing film I is correspondingly aligned with the left half part of the display screen, and the sub-polarizing film II is correspondingly aligned with the right half part of the display screen; the horizontal widths of the sub-polarizer I and the sub-polarizer II are equal to half of the horizontal width of the display panel, and the vertical widths of the sub-polarizer I and the sub-polarizer II are equal to the vertical width of the display panel.
Preferably, the horizontal resolution, the vertical resolution, the horizontal viewing angle, the vertical viewing angle and the optical efficiency of the 3D image I and the 3D image II are respectively equal; horizontal resolution of each 3D imageR 1Vertical resolutionR 2Horizontal viewing angleθ 1Vertical viewing angleθ 2And optical efficiencyφRespectively as follows:
wherein the content of the first and second substances,pis the horizontal pitch of the pinholes and,ais the number of rows of continuous multi-row pinholes which are positioned at the center of the pinhole array with gradually changed aperture and have the same horizontal aperture width,bis the number of rows of continuous rows of pinholes with the same vertical aperture width at the center of the gradient aperture pinhole array,wthe horizontal aperture widths of continuous multi-row pinholes with the same horizontal aperture width are positioned at the center of the gradient aperture pinhole array,vthe vertical aperture widths of continuous rows of pinholes with the same vertical aperture width are positioned at the center of the gradient aperture pinhole array,mis the number of pinholes in the horizontal direction in the pinhole array with gradually changed aperture,lis the viewing distance, the distance between the viewer,gis the distance between the display screen and the pinhole array with gradually changed aperture,cis the ratio of the vertical width to the horizontal width of the graded aperture pinhole array.
Horizontal pitch of the pinholes ofp=10mm, vertical pitch of pinholesq=12mm, and the number of rows of continuous rows of pinholes with the same horizontal aperture width at the center of the pinhole array with gradually-changed aperture isa=4, the number of rows of continuous rows of pinholes with the same vertical aperture width at the center of the gradient aperture pinhole array isb=2, the horizontal aperture width of continuous multi-row pinholes with same horizontal aperture width at the center of the gradient aperture pinhole array isw=3mm, and the vertical aperture width of continuous rows of pinholes at the center of the gradient aperture pinhole array is equal tov=4mm, the number of pinholes in the horizontal direction in the gradient aperture pinhole array ism=44, the number of pinholes in the vertical direction in the pinhole array with gradually-changed aperture isn=22, viewing distance ofl=3990mm, the distance between the display screen and the pinhole array with gradually-changed aperture isg=10mm, the ratio of the vertical width to the horizontal width of the pinhole array with gradually changing aperture isc= 0.6. Obtained according to the formulas (1) and (2), the horizontal aperture width of the 1 st to 44 th rows of pinholes is 2mm, 2.1mm, 2.2mm, 2.3mm, 2.4mm, 2.5mm, 2.6mm, 2.7mm, 2.8mm, 2.9mm, 3mm, 2.9mm, 2.8mm, 2.7mm, 2.6mm, 2.5mm, 2.4mm, 2.3mm, 2.2.2 mm, 2.2mm, 2.1mm, 2.6mm, 2.5mm, 2.4mm, 2.3mm, 2.2.2 mm, 2.2mm, 2mm, 2.1mm, 2.6mm, 2.5mm, 3mm, 2.2.2.2.2.2 mm, 2mm, 2.2mm, 2.2.2 mm, 2mm, 3mm, 2.2.4 mm, 2mm, 2.04 mm, 3mm, 3.64mm, 3.52mm, 3.4mm, 3.28mm, 3.16mm, 3.04mm, 2.92mm, 2.8 mm; from the expressions (3), (4), (5), (6), (7), the horizontal resolution, the vertical resolution, the horizontal viewing angle, the vertical viewing angle, and the optical efficiency of each 3D image are 22, 38 °, 44 °, and 3.5%, respectively.
Claims (5)
1. The integrated imaging double-view 3D display device based on the gradient aperture pinhole array is characterized by comprising a display screen, a polaroid, the gradient aperture pinhole array, a pair of polarized glasses I and a pair of polarized glasses II; the display screen, the polaroid and the gradient aperture pinhole array are sequentially arranged in parallel and correspondingly aligned; the polaroid is attached to the display screen; in the gradient aperture pinhole array, the horizontal aperture widths of pinholes in any column are the same, and the vertical aperture widths of pinholes in any row are the same; the horizontal aperture widths of continuous rows of pinholes in the center of the gradually-changed aperture pinhole array are the same, and the horizontal aperture widths of the gradually-changed aperture pinhole array are gradually reduced from the center to the left side and the right side; with successive rows of pinholes at the centre of the pinhole array of gradually varying apertureThe vertical aperture widths are the same, and the vertical aperture widths of the gradually-changed aperture pinhole array are gradually reduced from the center to the upper side and the lower side; first in a graded aperture pinhole arrayiHorizontal aperture width of row pin holesH i The first stepjVertical aperture width of pinholeV j Calculated from the following formula
Wherein the content of the first and second substances,pis the horizontal pitch of the pinholes and,qis the vertical pitch of the pinholes and,ais the number of rows of continuous multi-row pinholes which are positioned at the center of the pinhole array with gradually changed aperture and have the same horizontal aperture width,bis the number of rows of continuous rows of pinholes with the same vertical aperture width at the center of the gradient aperture pinhole array,wthe horizontal aperture widths of continuous multi-row pinholes with the same horizontal aperture width are positioned at the center of the gradient aperture pinhole array,vthe vertical aperture widths of continuous rows of pinholes with the same vertical aperture width are positioned at the center of the gradient aperture pinhole array,mis the number of pinholes in the horizontal direction in the pinhole array with gradually changed aperture,nis the number of pinholes in the vertical direction in the pinhole array with gradually changed aperture,lis the viewing distance, the distance between the viewer,gis the distance between the display screen and the pinhole array with gradually changed aperture,cis the ratio of the vertical width to the horizontal width of the gradient aperture pinhole array; the display screen is used for displaying the micro-image array, and the micro-image array comprises a picture element I and a picture element II; the horizontal pitch and the vertical pitch of the image element I are respectively equal to the horizontal pitch and the vertical pitch of the pinhole; the horizontal pitch and the vertical pitch of the image element II are respectively equal to the horizontal pitch and the vertical pitch of the pinhole; the polarizing plate comprises a sub-polarizing plate I and a sub-polarizing plate II, wherein the polarization direction of the sub-polarizing plate I is orthogonal to that of the sub-polarizing plate II; the image element I is correspondingly aligned with the sub-polaroid I, and the image element II is correspondingly aligned with the sub-polaroid II; polarization direction of polarized glasses I and polarization of sub-polaroid IThe vibration directions are the same, and the polarization direction of the polarization glasses II is the same as that of the sub-polarizer II; the image element I reconstructs a 3D image I through the sub-polaroid I and the corresponding pinhole array, and can only be seen through polarized glasses I; and the image element II reconstructs a 3D image II through the sub-polaroid II and the corresponding pinhole array, and the 3D image II can only be seen through the polarized glasses II.
2. The integrated imaging dual-view 3D display device based on the gradient aperture pinhole array according to claim 1, wherein horizontal widths of the display screen, the polarizer and the gradient aperture pinhole array are the same, and vertical widths of the display screen, the polarizer and the gradient aperture pinhole array are the same.
3. The integrated imaging dual-view 3D display device based on a graded aperture pinhole array according to claim 2, characterized in that the ratio of vertical pitch to horizontal pitch of the pinholes is equal to twice the ratio of vertical width to horizontal width of the graded aperture pinhole array.
4. The integrated imaging dual-view 3D display device based on the gradient aperture pinhole array of claim 3, wherein image element I is located in the left half of the display screen and image element II is located in the right half of the display screen; the sub-polarizing film I is correspondingly aligned with the left half part of the display screen, and the sub-polarizing film II is correspondingly aligned with the right half part of the display screen; the horizontal widths of the sub-polarizer I and the sub-polarizer II are equal to half of the horizontal width of the display panel, and the vertical widths of the sub-polarizer I and the sub-polarizer II are equal to the vertical width of the display panel.
5. The integrated imaging dual-view 3D display device based on the gradual-change aperture pinhole array according to claim 4, wherein the horizontal resolution, the vertical resolution, the horizontal viewing angle, the vertical viewing angle and the optical efficiency of the 3D image I and the 3D image II are respectively equal; horizontal resolution of each 3D imageR 1Vertical resolutionR 2Horizontal viewing angleθ 1Vertical viewingAngle of viewθ 2And optical efficiencyφRespectively as follows:
wherein the content of the first and second substances,pis the horizontal pitch of the pinholes and,ais the number of rows of continuous multi-row pinholes which are positioned at the center of the pinhole array with gradually changed aperture and have the same horizontal aperture width,bis the number of rows of continuous rows of pinholes with the same vertical aperture width at the center of the gradient aperture pinhole array,wthe horizontal aperture widths of continuous multi-row pinholes with the same horizontal aperture width are positioned at the center of the gradient aperture pinhole array,vthe vertical aperture widths of continuous rows of pinholes with the same vertical aperture width are positioned at the center of the gradient aperture pinhole array,mis the number of pinholes in the horizontal direction in the pinhole array with gradually changed aperture,lis the viewing distance, the distance between the viewer,gis the distance between the display screen and the pinhole array with gradually changed aperture,cis the ratio of the vertical width to the horizontal width of the graded aperture pinhole array.
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112485911A (en) * | 2021-01-11 | 2021-03-12 | 成都工业学院 | Double-vision 3D display device based on stepped gradient aperture pinhole array |
| CN112485920A (en) * | 2021-01-11 | 2021-03-12 | 成都工业学院 | Double-vision 3D display device based on stepped gradient aperture pinhole array |
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Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN112485911A (en) * | 2021-01-11 | 2021-03-12 | 成都工业学院 | Double-vision 3D display device based on stepped gradient aperture pinhole array |
| CN112485920A (en) * | 2021-01-11 | 2021-03-12 | 成都工业学院 | Double-vision 3D display device based on stepped gradient aperture pinhole array |
| CN112485911B (en) * | 2021-01-11 | 2024-02-23 | 成都工业学院 | Double-vision 3D display device based on stepped gradient aperture pinhole array |
| CN112485920B (en) * | 2021-01-11 | 2024-05-14 | 江苏洪旭德生科技有限公司 | Double-vision 3D display device based on stepped gradual change aperture pinhole array |
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