CN212229358U - 3D display device based on step gradual change composite pinhole array - Google Patents
3D display device based on step gradual change composite pinhole array Download PDFInfo
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- CN212229358U CN212229358U CN202021845402.9U CN202021845402U CN212229358U CN 212229358 U CN212229358 U CN 212229358U CN 202021845402 U CN202021845402 U CN 202021845402U CN 212229358 U CN212229358 U CN 212229358U
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Abstract
The utility model discloses a 3D display device based on a ladder gradual change composite pinhole array, which comprises a display screen and the ladder gradual change composite pinhole array; the step gradual change composite pinhole array comprises one-dimensional pinholes and two-dimensional pinholes; the composite micro-image array comprises a one-dimensional image element and a two-dimensional image element, wherein the one-dimensional image element and the two-dimensional image element are respectively aligned with the one-dimensional pinhole and the two-dimensional pinhole correspondingly; the horizontal pitches of the one-dimensional pinhole, the two-dimensional pinhole, the one-dimensional image element and the two-dimensional image element are the same; the horizontal aperture widths of the one-dimensional pinholes and the two-dimensional pinholes in the same column are the same; the horizontal aperture widths of continuous multiple rows of one-dimensional pinholes and two-dimensional pinholes in the middle of the stepped gradient composite pinhole array are the same; the one-dimensional image element reconstructs a one-dimensional 3D image through the corresponding one-dimensional pinhole, and the two-dimensional image element reconstructs a two-dimensional 3D image through the corresponding two-dimensional pinhole; the one-dimensional 3D image and the two-dimensional 3D image are combined into one high-resolution 3D image at the viewing area.
Description
Technical Field
The utility model relates to a 3D shows, more specifically says, the utility model relates to a 3D display device based on compound pinhole array of ladder gradual change.
Background
3D display based on integrated imaging, namely integrated imaging 3D display for short, is true 3D display. Compared with the vision-aiding/grating 3D display, the three-dimensional stereoscopic vision-aiding display has the remarkable advantages of no stereoscopic vision fatigue and the like; compared with holographic 3D display, the method has the advantages of relatively small data volume, no need of coherent light source, no harsh environmental requirements and the like. Therefore, the integrated imaging 3D display has become one of the international leading edge 3D display modes at present, and is also the most promising naked-eye true 3D display mode for realizing 3D television. However, the bottleneck problem of insufficient 3D resolution seriously affects the experience of the viewer. In the conventional integrated imaging 3D display, too few 3D pixels are provided in the vertical direction, which further affects the viewing effect and restricts the wide application of the integrated imaging 3D display. In addition, the low optical efficiency caused by the low aperture ratio is also one of the disadvantages of the integrated imaging 3D display.
Disclosure of Invention
The utility model provides a 3D display device based on a ladder gradual change composite pinhole array, which is characterized by comprising a display screen and the ladder gradual change composite pinhole array, as shown in attached figure 1; the stepped gradient composite pinhole arrays are arranged in parallel in front of the display screen and are correspondingly aligned; the horizontal widths of the display screen and the stepped gradient composite pinhole array are the same, and the vertical widths of the display screen and the stepped gradient composite pinhole array are the same; the step gradual change composite pinhole array comprises one-dimensional pinholes and two-dimensional pinholes, as shown in figure 2; the one-dimensional pinholes and the two-dimensional pinholes are arranged at intervals in the horizontal and vertical directions; the display screen displays the composite micro-image array as shown in figure 3; the composite micro-image array comprises a one-dimensional image element and a two-dimensional image element, wherein the one-dimensional image element and the two-dimensional image element are respectively aligned with the one-dimensional pinhole and the two-dimensional pinhole correspondingly; the horizontal pitches of the one-dimensional pinhole, the two-dimensional pinhole, the one-dimensional image element and the two-dimensional image element are the same; the vertical pitches of the one-dimensional pinhole, the two-dimensional pinhole, the one-dimensional image element and the two-dimensional image element are the same; the horizontal aperture widths of the one-dimensional pinholes and the two-dimensional pinholes in the same column are the same; the horizontal aperture widths of continuous multiple rows of one-dimensional pinholes and two-dimensional pinholes in the middle of the stepped gradient composite pinhole array are the same; in the step gradual change composite pinhole arrayiHorizontal aperture width of row of one-dimensional pinholes and two-dimensional pinholesH i Calculated from the following formula
Wherein the content of the first and second substances,ais the horizontal width of the stepped gradient composite pinhole array,pis the horizontal pitch of the one-dimensional pinholes and the two-dimensional pinholes,nis arranged in the middle of a stepped gradient composite pinhole arrayThe number of continuous rows of one-dimensional pinholes and two-dimensional pinholes with the same horizontal aperture width,wthe horizontal aperture widths of continuous multi-row one-dimensional pinholes and two-dimensional pinholes which are positioned in the middle of the stepped gradient composite pinhole array and have the same horizontal aperture width,lis the viewing distance, the distance between the viewer,gthe distance between the display screen and the stepped gradient composite pinhole array; the one-dimensional image element reconstructs a one-dimensional 3D image through the corresponding one-dimensional pinhole, and the two-dimensional image element reconstructs a two-dimensional 3D image through the corresponding two-dimensional pinhole; the one-dimensional 3D image and the two-dimensional 3D image are combined into one high-resolution 3D image at the viewing area.
Preferably, the number of the one-dimensional pinholes is equal to that of the two-dimensional pinholes in the horizontal direction; the number of the one-dimensional pinholes is equal to that of the two-dimensional pinholes in the vertical direction.
Preferably, the horizontal resolution of each line of the 3D image is the same and has full parallax; the vertical resolution of each column of the 3D image is the same and has full parallax.
Preferably, the vertical pitch of the one-dimensional pinholes and the two-dimensional pinholesqIs composed of
Wherein the content of the first and second substances,pis the horizontal pitch of the one-dimensional pinholes and the two-dimensional pinholes,ais the horizontal width of the stepped gradient composite pinhole array,bis the vertical width of the stepped gradient composite pinhole array,xis the pitch of a single pixel of the display screen.
Preferably, the horizontal resolution of the 3D imageR 1And vertical resolutionR 2Is composed of
Wherein the content of the first and second substances,pis the horizontal pitch of the one-dimensional pinholes and the two-dimensional pinholes,ais the horizontal width of the stepped gradient composite pinhole array.
Preferably, the vertical aperture widths of the two-dimensional pinholes are all the same.
Preferably, the optical efficiencyφIs composed of
Wherein the content of the first and second substances,ais the horizontal width of the stepped gradient composite pinhole array,pis the horizontal pitch of the one-dimensional pinholes and the two-dimensional pinholes,qis the vertical pitch of the one-dimensional pinholes and the two-dimensional pinholes,vis the vertical aperture width of the two-dimensional pinhole,H i is the first in the step gradual change composite pinhole arrayiThe horizontal aperture width of the one-dimensional pinholes and the two-dimensional pinholes is listed.
Drawings
FIG. 1 is a schematic diagram of the structure and parameters of the present invention
FIG. 2 is a schematic diagram of the stepped gradient composite pinhole array of the present invention
FIG. 3 is a schematic diagram of a composite micro-image array according to the present invention
The reference numbers in the figures are:
1. the display screen, 2, the step gradual change composite pinhole array, 3, the one-dimensional pinhole, 4, the two-dimensional pinhole, 5, the one-dimensional image element and 6, the two-dimensional image element.
It should be understood that the above-described figures are merely schematic and are not drawn to scale.
Detailed Description
The following describes in detail an exemplary embodiment of the 3D display device based on the stepped gradient composite pinhole array, 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 3D shows based on compound pinhole array of ladder gradual changeThe device is characterized by comprising a display screen and a step gradual change composite pinhole array, as shown in figure 1; the stepped gradient composite pinhole arrays are arranged in parallel in front of the display screen and are correspondingly aligned; the horizontal widths of the display screen and the stepped gradient composite pinhole array are the same, and the vertical widths of the display screen and the stepped gradient composite pinhole array are the same; the step gradual change composite pinhole array comprises one-dimensional pinholes and two-dimensional pinholes, as shown in figure 2; the one-dimensional pinholes and the two-dimensional pinholes are arranged at intervals in the horizontal and vertical directions; the display screen displays the composite micro-image array as shown in figure 3; the composite micro-image array comprises a one-dimensional image element and a two-dimensional image element, wherein the one-dimensional image element and the two-dimensional image element are respectively aligned with the one-dimensional pinhole and the two-dimensional pinhole correspondingly; the horizontal pitches of the one-dimensional pinhole, the two-dimensional pinhole, the one-dimensional image element and the two-dimensional image element are the same; the vertical pitches of the one-dimensional pinhole, the two-dimensional pinhole, the one-dimensional image element and the two-dimensional image element are the same; the horizontal aperture widths of the one-dimensional pinholes and the two-dimensional pinholes in the same column are the same; the horizontal aperture widths of continuous multiple rows of one-dimensional pinholes and two-dimensional pinholes in the middle of the stepped gradient composite pinhole array are the same; in the step gradual change composite pinhole arrayiHorizontal aperture width of row of one-dimensional pinholes and two-dimensional pinholesH i Calculated from the following formula
Wherein the content of the first and second substances,ais the horizontal width of the stepped gradient composite pinhole array,pis the horizontal pitch of the one-dimensional pinholes and the two-dimensional pinholes,nthe number of continuous rows of one-dimensional pinholes and two-dimensional pinholes with the same horizontal aperture width are positioned in the middle of the stepped gradient composite pinhole array,wthe horizontal aperture widths of continuous multi-row one-dimensional pinholes and two-dimensional pinholes which are positioned in the middle of the stepped gradient composite pinhole array and have the same horizontal aperture width,lis the viewing distance, the distance between the viewer,gthe distance between the display screen and the stepped gradient composite pinhole array; the one-dimensional image element reconstructs a one-dimensional 3D image through the corresponding one-dimensional pinhole, and the two-dimensional image element reconstructs a two-dimensional 3D image through the corresponding two-dimensional pinhole;the one-dimensional 3D image and the two-dimensional 3D image are combined into one high-resolution 3D image at the viewing area.
Preferably, the number of the one-dimensional pinholes is equal to that of the two-dimensional pinholes in the horizontal direction; the number of the one-dimensional pinholes is equal to that of the two-dimensional pinholes in the vertical direction.
Preferably, the horizontal resolution of each line of the 3D image is the same and has full parallax; the vertical resolution of each column of the 3D image is the same and has full parallax.
Preferably, the vertical pitch of the one-dimensional pinholes and the two-dimensional pinholesqIs composed of
Wherein the content of the first and second substances,pis the horizontal pitch of the one-dimensional pinholes and the two-dimensional pinholes,ais the horizontal width of the stepped gradient composite pinhole array,bis the vertical width of the stepped gradient composite pinhole array,xis the pitch of a single pixel of the display screen.
Preferably, the horizontal resolution of the 3D imageR 1And vertical resolutionR 2Is composed of
Wherein the content of the first and second substances,pis the horizontal pitch of the one-dimensional pinholes and the two-dimensional pinholes,ais the horizontal width of the stepped gradient composite pinhole array.
Preferably, the vertical aperture widths of the two-dimensional pinholes are all the same.
Preferably, the optical efficiencyφIs composed of
Wherein the content of the first and second substances,ais the horizontal width of the stepped gradient composite pinhole array,pis the horizontal pitch of the one-dimensional pinholes and the two-dimensional pinholes,qis the vertical pitch of the one-dimensional pinholes and the two-dimensional pinholes,vis the vertical aperture width of the two-dimensional pinhole,H i is the first in the step gradual change composite pinhole arrayiThe horizontal aperture width of the one-dimensional pinholes and the two-dimensional pinholes is listed.
The horizontal width of the step gradual change composite pinhole array is 36mm, the vertical width of the step gradual change composite pinhole array is 18mm, the horizontal pitch of the one-dimensional pinholes and the two-dimensional pinholes is 3mm, the pitch of a single pixel of the display screen is 1mm, the number of rows of continuous multi-row one-dimensional pinholes and two-dimensional pinholes with the same horizontal aperture width in the middle of the step gradual change composite pinhole array is 4, the horizontal aperture width of continuous multi-row one-dimensional pinholes and two-dimensional pinholes with the same horizontal aperture width in the middle of the step gradual change composite pinhole array is 0.6mm, the viewing distance is 720mm, the distance between the display screen and the step gradual change composite pinhole array is 3mm, the vertical aperture width of the two-dimensional pinholes is 0.6mm, the horizontal aperture widths of the 1 st to 12 th rows of one-dimensional pinholes and the two-dimensional pinholes in the step gradual change composite pinhole array are respectively 0.5mm, 0.5mm and, 0.5mm, 0.6mm, 0.5 mm; calculating by the formula (2) to obtain the vertical pitch of the one-dimensional pinholes and the two-dimensional pinholes as 3 mm; the horizontal resolution and the vertical resolution of the 3D image are both 12 calculated by the formula (3); the optical efficiency was calculated from formula (4) to be 10.7%.
Claims (7)
1. The 3D display device based on the step gradual change composite pinhole array is characterized by comprising a display screen and the step gradual change composite pinhole array; the stepped gradient composite pinhole arrays are arranged in parallel in front of the display screen and are correspondingly aligned; the horizontal widths of the display screen and the stepped gradient composite pinhole array are the same, and the vertical widths of the display screen and the stepped gradient composite pinhole array are the same; the step gradual change composite pinhole array comprises one-dimensional pinholes and two-dimensional pinholes; the one-dimensional pinholes and the two-dimensional pinholes are arranged at intervals in the horizontal and vertical directions; the display screen displays the composite micro-image array; the composite micro-image array comprises a one-dimensional image element and a two-dimensional image element, wherein the one-dimensional image element and the two-dimensional image element are respectively aligned with the one-dimensional pinhole and the two-dimensional pinhole correspondingly;the horizontal pitches of the one-dimensional pinhole, the two-dimensional pinhole, the one-dimensional image element and the two-dimensional image element are the same; the vertical pitches of the one-dimensional pinhole, the two-dimensional pinhole, the one-dimensional image element and the two-dimensional image element are the same; the horizontal aperture widths of the one-dimensional pinholes and the two-dimensional pinholes in the same column are the same; the horizontal aperture widths of continuous multiple rows of one-dimensional pinholes and two-dimensional pinholes in the middle of the stepped gradient composite pinhole array are the same; in the step gradual change composite pinhole arrayiHorizontal aperture width of row of one-dimensional pinholes and two-dimensional pinholesH i Calculated from the following formula
Wherein the content of the first and second substances,ais the horizontal width of the stepped gradient composite pinhole array,pis the horizontal pitch of the one-dimensional pinholes and the two-dimensional pinholes,nthe number of continuous rows of one-dimensional pinholes and two-dimensional pinholes with the same horizontal aperture width are positioned in the middle of the stepped gradient composite pinhole array,wthe horizontal aperture widths of continuous multi-row one-dimensional pinholes and two-dimensional pinholes which are positioned in the middle of the stepped gradient composite pinhole array and have the same horizontal aperture width,lis the viewing distance, the distance between the viewer,gthe distance between the display screen and the stepped gradient composite pinhole array; the one-dimensional image element reconstructs a one-dimensional 3D image through the corresponding one-dimensional pinhole, and the two-dimensional image element reconstructs a two-dimensional 3D image through the corresponding two-dimensional pinhole; the one-dimensional 3D image and the two-dimensional 3D image are combined into one high-resolution 3D image at the viewing area.
2. The 3D display device based on the step-graded composite pinhole array according to claim 1, wherein the number of the one-dimensional pinholes and the number of the two-dimensional pinholes in the horizontal direction are the same; the number of the one-dimensional pinholes is equal to that of the two-dimensional pinholes in the vertical direction.
3. The 3D display device based on the step-graded composite pinhole array according to claim 2, wherein the horizontal resolution of each row of the 3D image is the same and has full parallax; the vertical resolution of each column of the 3D image is the same and has full parallax.
4. The 3D display device based on the step-graded composite pinhole array according to claim 2, wherein the vertical pitch of the one-dimensional pinholes and the two-dimensional pinholesqIs composed of
Wherein the content of the first and second substances,pis the horizontal pitch of the one-dimensional pinholes and the two-dimensional pinholes,ais the horizontal width of the stepped gradient composite pinhole array,bis the vertical width of the stepped gradient composite pinhole array,xis the pitch of a single pixel of the display screen.
5. The 3D display device based on the step-graded composite pinhole array according to claim 4, wherein the horizontal resolution of the 3D imageR 1And vertical resolutionR 2Is composed of
Wherein the content of the first and second substances,pis the horizontal pitch of the one-dimensional pinholes and the two-dimensional pinholes,ais the horizontal width of the stepped gradient composite pinhole array.
6. The 3D display device based on the step-graded composite pinhole array according to claim 4, wherein the vertical aperture widths of the two-dimensional pinholes are all the same.
7. The 3D display device based on the step-graded composite pinhole array according to claim 6, wherein optical efficiency is higher than that of the compound pinhole arrayφIs composed of
Wherein the content of the first and second substances,ais the horizontal width of the stepped gradient composite pinhole array,pis the horizontal pitch of the one-dimensional pinholes and the two-dimensional pinholes,qis the vertical pitch of the one-dimensional pinholes and the two-dimensional pinholes,vis the vertical aperture width of the two-dimensional pinhole,H i is the first in the step gradual change composite pinhole arrayiThe horizontal aperture width of the one-dimensional pinholes and the two-dimensional pinholes is listed.
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