CN212276127U - Double-vision 3D display device based on stepped gradient composite pinhole array - Google Patents
Double-vision 3D display device based on stepped gradient composite pinhole array Download PDFInfo
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Abstract
The utility model discloses a double-vision 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 one-dimensional pinholes and the two-dimensional pinholes are sequentially arranged in odd rows; the two-dimensional pinholes and the one-dimensional pinholes are sequentially arranged in even rows; the horizontal pitches of continuous 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 I reconstructs a one-dimensional 3D image I through the corresponding one-dimensional pinhole, the two-dimensional image element I reconstructs a two-dimensional 3D image I through the corresponding two-dimensional pinhole, and the one-dimensional 3D image I and the two-dimensional 3D image I are combined into a high-resolution 3D image I in a 3D visual area I; and the one-dimensional image element II reconstructs a one-dimensional 3D image II through the corresponding one-dimensional pinhole, the two-dimensional image element II reconstructs a two-dimensional 3D image II through the corresponding two-dimensional pinhole, and the one-dimensional 3D image II and the two-dimensional 3D image II are combined into a high-resolution 3D image II in the 3D visual area II.
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 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.
In recent years, the integrated imaging 3D display and the dual view display are fused to form an integrated imaging dual view 3D display. It may provide different 3D pictures in different viewing directions. However, the bottleneck problem of insufficient 3D resolution seriously affects the experience of the viewer. In the traditional integrated imaging double-view 3D display, the number of 3D pixels in the vertical direction is too small, so that the viewing effect is further influenced, and the wide application of the integrated imaging double-view 3D display is restricted. In addition, the conventional integrated imaging dual-view 3D display has the disadvantages that the viewing angle is inversely proportional to the number of image elements, and the optical efficiency is low.
Disclosure of Invention
The utility model provides a double-view 3D display device based on a ladder gradual change composite pinhole array, as shown in attached figures 1 and 2, which is characterized by comprising a display screen and a ladder 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, as shown in figure 3; the one-dimensional pinholes and the two-dimensional pinholes are sequentially arranged in odd rows; the two-dimensional pinholes and the one-dimensional pinholes are sequentially arranged in even rows; the horizontal pitches of the one-dimensional pinholes and the two-dimensional pinholes in the same column are the same; the horizontal pitches of continuous 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 pitch of rows of one-dimensional pinholes and two-dimensional pinholesP i Calculated from the following formula
Wherein,pis the horizontal pitch of continuous multi-row one-dimensional pinholes and two-dimensional pinholes which are positioned in the middle of the step gradual change composite pinhole array and have the same horizontal pitch,nthe number of continuous rows of one-dimensional pinholes and two-dimensional pinholes with the same horizontal pitch is positioned in the middle of the stepped gradient composite pinhole array,mis a stepped gradual change compound needleThe sum of the number of one-dimensional pinholes and the number of two-dimensional pinholes in the horizontal direction of the hole array,lis the viewing distance, the distance between the viewer,gthe distance between the display screen and the stepped gradient composite pinhole array; the display screen displays the composite micro-image array as shown in figure 4; the composite micro-image array comprises a one-dimensional image element I, a two-dimensional image element I, a one-dimensional image element II and a two-dimensional image element II; the one-dimensional image element I and the two-dimensional image element I are obtained through a 3D scene I; the one-dimensional image element II and the two-dimensional image element II are obtained through a 3D scene II; the one-dimensional image element I, the one-dimensional image element II, the two-dimensional image element I and the two-dimensional image element II are sequentially arranged in odd rows; the two-dimensional image element I, the two-dimensional image element II, the one-dimensional image element I and the one-dimensional image element II are sequentially arranged in even lines; the number of the one-dimensional image element I, the two-dimensional image element I, the one-dimensional image element II, the two-dimensional image element II, the one-dimensional pinholes and the two-dimensional pinholes in the horizontal direction is the same; the numbers of the one-dimensional image element I, the two-dimensional image element I, the one-dimensional image element II, the two-dimensional image element II, the one-dimensional pinholes and the two-dimensional pinholes in the vertical direction are the same; the horizontal pitch of the one-dimensional image element I is equal to half of the horizontal pitch of the one-dimensional pinhole corresponding to the one-dimensional image element I, the horizontal pitch of the one-dimensional image element II is equal to half of the horizontal pitch of the one-dimensional pinhole corresponding to the one-dimensional image element II, the horizontal pitch of the two-dimensional image element I is equal to half of the horizontal pitch of the two-dimensional pinhole corresponding to the two-dimensional image element I, and the horizontal pitch of the two-dimensional image element II is equal to half of the horizontal pitch of the two-dimensional pinhole; the vertical pitches of the one-dimensional image element I, the two-dimensional image element I, the one-dimensional image element II, the two-dimensional image element II, the one-dimensional pinhole and the two-dimensional pinhole are the same; the one-dimensional image element I reconstructs a one-dimensional 3D image I through the corresponding one-dimensional pinhole, the two-dimensional image element I reconstructs a two-dimensional 3D image I through the corresponding two-dimensional pinhole, and the one-dimensional 3D image I and the two-dimensional 3D image I are combined into a high-resolution 3D image I in a 3D visual area I; and the one-dimensional image element II reconstructs a one-dimensional 3D image II through the corresponding one-dimensional pinhole, the two-dimensional image element II reconstructs a two-dimensional 3D image II through the corresponding two-dimensional pinhole, and the one-dimensional 3D image II and the two-dimensional 3D image II are combined into a high-resolution 3D image II in the 3D visual area II.
Preferably, the horizontal resolution of each line of the 3D image I is the same and has full parallax; the vertical resolution of each column of the 3D image I is the same and has full parallax; the horizontal resolution of each line of the 3D image II is the same and has full parallax; the vertical resolution of each column of the 3D image II is the same and has full parallax.
Preferably, the vertical resolution of the 3D image IR 1And vertical resolution of 3D image IIR 2Is composed of
Wherein,vis the sum of the number of one-dimensional pinholes and the number of two-dimensional pinholes in the vertical direction of the step gradient composite pinhole array,qis the vertical pitch of the one-dimensional pinholes,xis the pitch of a single pixel of the display screen.
Preferably, the aperture widths of the one-dimensional pinholes and the two-dimensional pinholes are the same.
Optical efficiency of a preferred, dual view 3D display deviceφIs composed of
Wherein,qis the vertical pitch of the one-dimensional pinholes and the two-dimensional pinholes,wis the aperture width of the one-dimensional pinholes and the two-dimensional pinholes,mis the sum of the number of one-dimensional pinholes and the number of two-dimensional pinholes in the horizontal direction of the stepped gradient composite pinhole array,P i is the first in the step gradual change composite pinhole arrayiHorizontal pitches of the columns of one-dimensional pinholes and the two-dimensional pinholes.
Preferably, the viewing angle of the 3D image Iθ 1And viewing perspective of 3D image IIθ 2Is composed of
Wherein,pis composed of a plurality of continuous rows of one-dimensional pinholes and two-dimensional pinholes which are positioned in the middle of a step gradual change composite pinhole array and have the same horizontal pitchThe horizontal pitch of the pinholes is such that,wis the aperture width of the one-dimensional pinholes and the two-dimensional pinholes,lis the viewing distance, the distance between the viewer,gis the distance between the display screen and the stepped gradient composite pinhole array.
Drawings
FIG. 1 is a schematic diagram of the structure and odd row parameters of the present invention
FIG. 2 is a schematic diagram of the structure and even-numbered row parameters of the present invention
FIG. 3 is a schematic diagram of the stepped gradient composite pinhole array of the present invention
FIG. 4 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 comprises a display screen, 2, a step gradual change composite pinhole array, 3, one-dimensional pinholes, 4, two-dimensional pinholes, 5, one-dimensional image elements I, 6, two-dimensional image elements I, 7, one-dimensional image elements II, 8, two-dimensional image elements II, a 9.3D visual area I and a 10.3D visual area II.
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 dual-view 3D display device based on the stepped gradient composite pinhole array of the present invention, and it is to be understood that the present invention is not limited to this embodiment. 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-view 3D display device based on a ladder gradual change composite pinhole array, as shown in attached figures 1 and 2, which is characterized by comprising a display screen and a ladder 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; step gradual change complexThe pin combining hole array comprises one-dimensional pin holes and two-dimensional pin holes, as shown in figure 3; the one-dimensional pinholes and the two-dimensional pinholes are sequentially arranged in odd rows; the two-dimensional pinholes and the one-dimensional pinholes are sequentially arranged in even rows; the horizontal pitches of the one-dimensional pinholes and the two-dimensional pinholes in the same column are the same; the horizontal pitches of continuous 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 pitch of rows of one-dimensional pinholes and two-dimensional pinholesP i Calculated from the following formula
Wherein,pis the horizontal pitch of continuous multi-row one-dimensional pinholes and two-dimensional pinholes which are positioned in the middle of the step gradual change composite pinhole array and have the same horizontal pitch,nthe number of continuous rows of one-dimensional pinholes and two-dimensional pinholes with the same horizontal pitch is positioned in the middle of the stepped gradient composite pinhole array,mis the sum of the number of one-dimensional pinholes and the number of two-dimensional pinholes in the horizontal direction of the stepped gradient composite pinhole array,lis the viewing distance, the distance between the viewer,gthe distance between the display screen and the stepped gradient composite pinhole array; the display screen displays the composite micro-image array as shown in figure 4; the composite micro-image array comprises a one-dimensional image element I, a two-dimensional image element I, a one-dimensional image element II and a two-dimensional image element II; the one-dimensional image element I and the two-dimensional image element I are obtained through a 3D scene I; the one-dimensional image element II and the two-dimensional image element II are obtained through a 3D scene II; the one-dimensional image element I, the one-dimensional image element II, the two-dimensional image element I and the two-dimensional image element II are sequentially arranged in odd rows; the two-dimensional image element I, the two-dimensional image element II, the one-dimensional image element I and the one-dimensional image element II are sequentially arranged in even lines; the number of the one-dimensional image element I, the two-dimensional image element I, the one-dimensional image element II, the two-dimensional image element II, the one-dimensional pinholes and the two-dimensional pinholes in the horizontal direction is the same; the numbers of the one-dimensional image element I, the two-dimensional image element I, the one-dimensional image element II, the two-dimensional image element II, the one-dimensional pinholes and the two-dimensional pinholes in the vertical direction are the same; the horizontal pitch of a one-dimensional image element I is equal to half the horizontal pitch of the corresponding one-dimensional pinholeThe horizontal pitch of the one-dimensional image element II is equal to half of the horizontal pitch of the one-dimensional pinhole corresponding to the one-dimensional image element II, the horizontal pitch of the two-dimensional image element I is equal to half of the horizontal pitch of the two-dimensional pinhole corresponding to the two-dimensional image element I, and the horizontal pitch of the two-dimensional image element II is equal to half of the horizontal pitch of the two-dimensional pinhole corresponding to the two-dimensional image element II; the vertical pitches of the one-dimensional image element I, the two-dimensional image element I, the one-dimensional image element II, the two-dimensional image element II, the one-dimensional pinhole and the two-dimensional pinhole are the same; the one-dimensional image element I reconstructs a one-dimensional 3D image I through the corresponding one-dimensional pinhole, the two-dimensional image element I reconstructs a two-dimensional 3D image I through the corresponding two-dimensional pinhole, and the one-dimensional 3D image I and the two-dimensional 3D image I are combined into a high-resolution 3D image I in a 3D visual area I; and the one-dimensional image element II reconstructs a one-dimensional 3D image II through the corresponding one-dimensional pinhole, the two-dimensional image element II reconstructs a two-dimensional 3D image II through the corresponding two-dimensional pinhole, and the one-dimensional 3D image II and the two-dimensional 3D image II are combined into a high-resolution 3D image II in the 3D visual area II.
Preferably, the horizontal resolution of each line of the 3D image I is the same and has full parallax; the vertical resolution of each column of the 3D image I is the same and has full parallax; the horizontal resolution of each line of the 3D image II is the same and has full parallax; the vertical resolution of each column of the 3D image II is the same and has full parallax.
Preferably, the vertical resolution of the 3D image IR 1And vertical resolution of 3D image IIR 2Is composed of
Wherein,vis the sum of the number of one-dimensional pinholes and the number of two-dimensional pinholes in the vertical direction of the step gradient composite pinhole array,qis the vertical pitch of the one-dimensional pinholes,xis the pitch of a single pixel of the display screen.
Preferably, the aperture widths of the one-dimensional pinholes and the two-dimensional pinholes are the same.
Optical efficiency of a preferred, dual view 3D display deviceφIs composed of
Wherein,qis the vertical pitch of the one-dimensional pinholes and the two-dimensional pinholes,wis the aperture width of the one-dimensional pinholes and the two-dimensional pinholes,mis the sum of the number of one-dimensional pinholes and the number of two-dimensional pinholes in the horizontal direction of the stepped gradient composite pinhole array,P i is the first in the step gradual change composite pinhole arrayiHorizontal pitches of the columns of one-dimensional pinholes and the two-dimensional pinholes.
Preferably, the viewing angle of the 3D image Iθ 1And viewing perspective of 3D image IIθ 2Is composed of
Wherein,pis the horizontal pitch of continuous multi-row one-dimensional pinholes and two-dimensional pinholes which are positioned in the middle of the step gradual change composite pinhole array and have the same horizontal pitch,wis the aperture width of the one-dimensional pinholes and the two-dimensional pinholes,lis the viewing distance, the distance between the viewer,gis the distance between the display screen and the stepped gradient composite pinhole array.
The horizontal pitch of continuous multiple rows of one-dimensional pinholes and two-dimensional pinholes with the same horizontal pitch in the middle of the step gradient composite pinhole array is 10mm, the number of continuous multiple rows of one-dimensional pinholes and two-dimensional pinholes with the same horizontal pitch in the middle of the step gradient composite pinhole array is 10, the sum of the number of the one-dimensional pinholes and the two-dimensional pinholes in the horizontal direction of the step gradient composite pinhole array is 30, the sum of the number of the one-dimensional pinholes and the two-dimensional pinholes in the vertical direction of the step gradient composite pinhole array is 20, the viewing distance is 1010mm, the distance between the display screen and the step gradient composite pinhole array is 10mm, the vertical pitch of the one-dimensional pinholes and the two-dimensional pinholes is 8mm, the aperture width of the one-dimensional pinholes and the two-dimensional pinholes is 2mm, the pitch of single pixel of the display screen is 1mm, and the horizontal pitch of the 1-30 rows of, 12mm, 10mm, 12mm, and the vertical resolution of the 3D image I and the 3D image II calculated by the formula (2) is 80; the optical efficiency of the dual-view 3D display device calculated from equation (3) was 8.8%; the viewing angles of the 3D image I and the 3D image II are both 16 ° calculated by equation (4).
Claims (6)
1. The double-view 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 sequentially arranged in odd rows; the two-dimensional pinholes and the one-dimensional pinholes are sequentially arranged in even rows; the horizontal pitches of the one-dimensional pinholes and the two-dimensional pinholes in the same column are the same; the horizontal pitches of continuous 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 pitch of rows of one-dimensional pinholes and two-dimensional pinholesP i Calculated from the following formula
Wherein,pis the horizontal pitch of continuous multi-row one-dimensional pinholes and two-dimensional pinholes which are positioned in the middle of the step gradual change composite pinhole array and have the same horizontal pitch,nthe number of continuous rows of one-dimensional pinholes and two-dimensional pinholes with the same horizontal pitch is positioned in the middle of the stepped gradient composite pinhole array,mis the sum of the number of one-dimensional pinholes and the number of two-dimensional pinholes in the horizontal direction of the stepped gradient composite pinhole array,lis the viewing distance, the distance between the viewer,gthe distance between the display screen and the stepped gradient composite pinhole array; the display screen displays the composite micro-image array; composite micrographsThe image array comprises a one-dimensional image element I, a two-dimensional image element I, a one-dimensional image element II and a two-dimensional image element II; the one-dimensional image element I and the two-dimensional image element I are obtained through a 3D scene I; the one-dimensional image element II and the two-dimensional image element II are obtained through a 3D scene II; the one-dimensional image element I, the one-dimensional image element II, the two-dimensional image element I and the two-dimensional image element II are sequentially arranged in odd rows; the two-dimensional image element I, the two-dimensional image element II, the one-dimensional image element I and the one-dimensional image element II are sequentially arranged in even lines; the number of the one-dimensional image element I, the two-dimensional image element I, the one-dimensional image element II, the two-dimensional image element II, the one-dimensional pinholes and the two-dimensional pinholes in the horizontal direction is the same; the numbers of the one-dimensional image element I, the two-dimensional image element I, the one-dimensional image element II, the two-dimensional image element II, the one-dimensional pinholes and the two-dimensional pinholes in the vertical direction are the same; the horizontal pitch of the one-dimensional image element I is equal to half of the horizontal pitch of the one-dimensional pinhole corresponding to the one-dimensional image element I, the horizontal pitch of the one-dimensional image element II is equal to half of the horizontal pitch of the one-dimensional pinhole corresponding to the one-dimensional image element II, the horizontal pitch of the two-dimensional image element I is equal to half of the horizontal pitch of the two-dimensional pinhole corresponding to the two-dimensional image element I, and the horizontal pitch of the two-dimensional image element II is equal to half of the horizontal pitch of the two-dimensional pinhole; the vertical pitches of the one-dimensional image element I, the two-dimensional image element I, the one-dimensional image element II, the two-dimensional image element II, the one-dimensional pinhole and the two-dimensional pinhole are the same; the one-dimensional image element I reconstructs a one-dimensional 3D image I through the corresponding one-dimensional pinhole, the two-dimensional image element I reconstructs a two-dimensional 3D image I through the corresponding two-dimensional pinhole, and the one-dimensional 3D image I and the two-dimensional 3D image I are combined into a high-resolution 3D image I in a 3D visual area I; and the one-dimensional image element II reconstructs a one-dimensional 3D image II through the corresponding one-dimensional pinhole, the two-dimensional image element II reconstructs a two-dimensional 3D image II through the corresponding two-dimensional pinhole, and the one-dimensional 3D image II and the two-dimensional 3D image II are combined into a high-resolution 3D image II in the 3D visual area II.
2. The dual-view 3D display device based on the echelon gradient composite pinhole array as claimed in claim 1, wherein the horizontal resolution of each row of the 3D image I is the same and has full parallax; the vertical resolution of each column of the 3D image I is the same and has full parallax; the horizontal resolution of each line of the 3D image II is the same and has full parallax; the vertical resolution of each column of the 3D image II is the same and has full parallax.
3. The dual-view 3D display device based on the step-gradient composite pinhole array according to claim 1, wherein the vertical resolution of the 3D image IR 1And vertical resolution of 3D image IIR 2Is composed of
Wherein,vis the sum of the number of one-dimensional pinholes and the number of two-dimensional pinholes in the vertical direction of the step gradient composite pinhole array,qis the vertical pitch of the one-dimensional pinholes,xis the pitch of a single pixel of the display screen.
4. The dual-view 3D display device based on the stepped gradient composite pinhole array according to claim 1, wherein the aperture widths of the one-dimensional pinholes and the two-dimensional pinholes are the same.
5. The dual-view 3D display device based on the stepped gradient composite pinhole array of claim 4, wherein the optical efficiency of the dual-view 3D display deviceφIs composed of
Wherein,qis the vertical pitch of the one-dimensional pinholes and the two-dimensional pinholes,wis the aperture width of the one-dimensional pinholes and the two-dimensional pinholes,mis the sum of the number of one-dimensional pinholes and the number of two-dimensional pinholes in the horizontal direction of the stepped gradient composite pinhole array,P i is the first in the step gradual change composite pinhole arrayiHorizontal pitches of the columns of one-dimensional pinholes and the two-dimensional pinholes.
6. The stair-based system of claim 4The double-vision 3D display device of the gradual change composite pinhole array is characterized in that the watching visual angle of a 3D image Iθ 1And viewing perspective of 3D image IIθ 2Is composed of
Wherein,pis the horizontal pitch of continuous multi-row one-dimensional pinholes and two-dimensional pinholes which are positioned in the middle of the step gradual change composite pinhole array and have the same horizontal pitch,wis the aperture width of the one-dimensional pinholes and the two-dimensional pinholes,lis the viewing distance, the distance between the viewer,gis the distance between the display screen and the stepped gradient composite pinhole array.
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