CN113031297B - Double-vision 3D display method based on polarized glasses - Google Patents
Double-vision 3D display method based on polarized glasses Download PDFInfo
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- CN113031297B CN113031297B CN202110355916.9A CN202110355916A CN113031297B CN 113031297 B CN113031297 B CN 113031297B CN 202110355916 A CN202110355916 A CN 202110355916A CN 113031297 B CN113031297 B CN 113031297B
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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
- G02B30/30—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 parallax barriers
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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
- G02B30/34—Stereoscopes providing a stereoscopic pair of separated images corresponding to parallactically displaced views of the same object, e.g. 3D slide viewers
Abstract
The invention discloses a double-vision 3D display method based on polarized glasses, which realizes double-vision 3D display through integrated imaging display equipment; the integrated imaging display device comprises a display screen, a polarization grating, a pinhole array, a pair of polarization glasses I and a pair of polarization glasses II; the discrete composite image element array comprises a plurality of image elements I and image elements II which are arranged discretely; a plurality of image elements I which are discretely arranged in the horizontal direction are correspondingly aligned with the same grating unit I; a plurality of image elements II which are discretely arranged in the horizontal direction are correspondingly aligned with the same grating unit II; the imaging areas of the image elements I are all overlapped at the optimal viewing distance; the imaging areas of the image elements II are all overlapped at the optimal viewing distance; only 3D image I can be seen through polarized glasses I and only 3D image II can be seen through polarized glasses II.
Description
Technical Field
The present invention relates to 3D display, and more particularly, to a dual view 3D display method based on polarized glasses.
Background
The integrated imaging 3D display has the characteristic of being watched by naked eyes, the shooting and displaying processes are relatively simple, and 3D images with full parallax and full true colors can be displayed, so that the integrated imaging 3D display is one of the main modes of the current 3D display. 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. Two different 3D pictures can be separated by adopting the polarization grating and the matched polarization glasses, and a viewer can see different 3D pictures by switching different polarization glasses.
In the existing integrated imaging double-view 3D display based on the polarization grating and the pinhole array, a plurality of image elements I which are continuously arranged in the horizontal direction and a plurality of pinholes which are correspondingly continuously arranged in the horizontal direction are correspondingly aligned with the same grating unit I; and a plurality of image elements II which are continuously arranged in the horizontal direction and a plurality of corresponding pinholes which are continuously arranged in the horizontal direction are correspondingly aligned with the same grating unit II. The method reduces the manufacturing difficulty and cost of the polarization grating. However, this method has the following disadvantages:
(1) A plurality of image elements I which are continuously arranged in the horizontal direction and correspond to the same grating unit I are mutually interfered; a plurality of image elements II which are continuously arranged in the horizontal direction and correspond to the same grating unit II interfere with each other;
(2) The image elements I which are continuously arranged in the vertical direction have mutual interference; the image elements II which are continuously arranged in the vertical direction have mutual interference;
(3) The viewing view zone of the 3D image I is far smaller than the viewing view zone reconstructed by the image element I at the center; the viewing zone of the 3D image II is much smaller than the viewing zone reconstructed from the centrally located image element II;
(5) The optical efficiency is low.
In the existing integrated imaging double-vision 3D display based on polarization grating and pinhole array, the horizontal viewing angle of a 3D image Iθ 1 Vertical viewing angle of 3D image Iθ 2 Horizontal viewing perspective of 3D image IIθ 3 Vertical viewing angle of 3D image IIθ 4 Optical efficiency of 3D image Iφ 1 Optical efficiency of 3D image IIφ 2 Are respectively as
Wherein, the first and the second end of the pipe are connected with each other,pis the pitch of the pinholes and is,wis the aperture width of the pinhole,lis the viewing distance, the distance between the viewer,gis the distance between the display screen and the pinhole array,mis the number of pinholes in the horizontal direction,nis the number of pinholes in the vertical direction,kis the number of pinholes which are continuously arranged in the horizontal direction and correspond to the same grating unit I,tis the light transmission of the polarization grating and the polarization glasses.
Disclosure of Invention
The invention provides a double-vision 3D display method based on polarized glasses, which realizes double-vision 3D display through integrated imaging display equipment; the integrated imaging display equipment comprises a display screen, a polarization grating and a pinhole arrayColumn, polarization glasses I and polarization glasses II; the display screen, the polarization grating and the pinhole array are sequentially arranged in parallel and are correspondingly aligned as shown in the attached figures 1, 2 and 3; the polarization grating is attached to the display screen; the polarization grating is formed by alternately arranging a grating unit I and a grating unit II, and the polarization direction of the grating unit I is orthogonal to that of the grating unit II; the display screen is used for displaying the discrete composite image element array; the discrete composite image element array comprises a plurality of image elements I and image elements II which are arranged discretely; the width of picture element I is equal to the width of picture element II; the interval width of the adjacent image element I, the interval width of the adjacent image element II and the interval widths of the adjacent image element I and the adjacent image element II are equal; width of picture element IqThe width of the interval between adjacent picture elements IaAnd pitch of the pin holepSatisfies the following formula
Wherein the content of the first and second substances,lis the best viewing distance for the user,gis the distance between the display screen and the pinhole array; a plurality of image elements I which are discretely arranged in the horizontal direction are correspondingly aligned with the same grating unit I; a plurality of image elements II which are discretely arranged in the horizontal direction are correspondingly aligned with the same grating unit II; the image element I reconstructs a 3D image I through the corresponding grating unit I and the pinhole, and light rays emitted by the image element I adjacent to the image element I cannot interfere with the 3D image I reconstructed by the image element I; the image element II reconstructs a 3D image II through the corresponding grating unit II and the pinhole, and the light rays emitted by the image element II adjacent to the image element II cannot interfere with the 3D image II reconstructed by the image element II; the imaging areas of the image elements I are all overlapped at the optimal viewing distance; the imaging areas of the image elements II are all overlapped at the optimal viewing distance; the polarization direction of the polarization glasses I is the same as that of the grating unit I, and the polarization direction of the polarization glasses II is the same as that of the grating unit II; only 3D image I can be seen through polarized glasses I and only 3D image II can be seen through polarized glasses II.
Preferably, the images corresponding to the same raster unit I are arranged discretely in the horizontal directionThe number of the elements I is equal to the number of image elements II which are corresponding to the same raster unit II and are discretely arranged in the horizontal direction; pitch of grating unit I and grating unit IIsCalculated from the following formula
Wherein the content of the first and second substances,pis the pitch of the pinholes and is,kis the number of picture elements I which are arranged discretely in the horizontal direction corresponding to the same raster unit I.
Preferably, the width of the interval of adjacent picture elements IaSatisfies the following formula
Wherein the content of the first and second substances,wis the aperture width of the pinhole,lis the best viewing distance for the user,gis the distance between the display screen and the pinhole array.
Preferably, the width of the picture element IqAnd the width of the interval between adjacent picture elements IaRespectively as follows:
wherein the content of the first and second substances,pis the pitch of the pinholes and is,wis the aperture width of the pinhole,lis the best viewing distance for the user,gis the distance between the display screen and the pinhole array.
Preferably, the horizontal viewing angle of the 3D image Iθ 1 Vertical viewing angle of 3D image Iθ 2 Horizontal viewing perspective of 3D image IIθ 3 Vertical viewing angle of 3D image IIθ 4 Optical efficiency of 3D image Iφ 1 Light of 3D image IIEfficiency of studyφ 2 Respectively as follows:
wherein, the first and the second end of the pipe are connected with each other,pis the pitch of the pinholes and is,qis the width of the picture element I,wis the aperture width of the pinhole,lis the best viewing distance for the user,gis the distance between the display screen and the pinhole array,tis the light transmission of the polarization grating and the polarization glasses.
Drawings
FIG. 1 is a schematic diagram of the structure and horizontal direction parameters of the present invention
FIG. 2 is a diagram illustrating the parameters of the image element I and the grating unit I in the vertical direction
FIG. 3 is a diagram illustrating the parameters of the image element II and the grating unit II in the vertical direction
The reference numbers in the figures are:
1. the display screen, 2 polarization grating, 3 pinhole array, 4 polarization glasses I,5 polarization glasses II,6 grating unit I, 7 grating unit II,8 image element I, 9 image element II,10 interval of adjacent image element I, 11 interval of adjacent image element II, 12 interval of adjacent image element I and image element 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 by describing in detail an exemplary embodiment of a polarized glasses-based dual-view 3D display method of the present invention. It should be noted that the following examples are given by way of illustration only and should not be construed as limiting the scope of the present invention, which is intended to be encompassed by the present invention as set forth herein.
The invention provides a double-vision 3D display method based on polarized glasses, which realizes double-vision 3D display through integrated imaging display equipment; the integrated imaging display device is characterized by comprising a display screen, a polarization grating, a pinhole array, a pair of polarization glasses I and a pair of polarization glasses II; the display screen, the polarization grating and the pinhole array are sequentially arranged in parallel and are correspondingly aligned as shown in the attached figures 1, 2 and 3; the polarization grating is attached to the display screen; the polarization grating is formed by alternately arranging a grating unit I and a grating unit II, and the polarization direction of the grating unit I is orthogonal to that of the grating unit II; the display screen is used for displaying the discrete composite image element array; the discrete composite image element array comprises a plurality of image elements I and image elements II which are arranged discretely; the width of picture element I is equal to the width of picture element II; the interval width of the adjacent image element I, the interval width of the adjacent image element II and the interval widths of the adjacent image element I and the adjacent image element II are equal; width of picture element IqThe width of the interval between adjacent picture elements IaAnd pitch of the pin holepSatisfies the following formula
Wherein the content of the first and second substances,lis the best viewing distance for the user,gis the distance between the display screen and the pinhole array; a plurality of image elements I which are discretely arranged in the horizontal direction are correspondingly aligned with the same grating unit I; a plurality of image elements II which are discretely arranged in the horizontal direction are correspondingly aligned with the same grating unit II; the image element I reconstructs a 3D image I through the corresponding grating unit I and the pinhole, and light rays emitted by the image element I adjacent to the image element I cannot interfere with the 3D image I reconstructed by the image element I; the image element II reconstructs a 3D image II through the corresponding grating unit II and the pinhole, and the light rays emitted by the image element II adjacent to the image element II cannot interfere with the 3D image II reconstructed by the image element II; image of a personThe imaging regions of element I are all coincident at the optimal viewing distance; the imaging areas of the image elements II coincide at the optimum viewing distance; the polarization direction of the polarization glasses I is the same as that of the grating unit I, and the polarization direction of the polarization glasses II is the same as that of the grating unit II; only 3D image I can be seen through polarized glasses I and only 3D image II can be seen through polarized glasses II.
Preferably, the number of image elements I discretely arranged in the horizontal direction corresponding to the same raster unit I is equal to the number of image elements II discretely arranged in the horizontal direction corresponding to the same raster unit II; pitch of grating unit I and grating unit IIsCalculated from the following formula
Wherein the content of the first and second substances,pis the pitch of the pinholes and is,kis the number of picture elements I which are arranged discretely in the horizontal direction corresponding to the same raster unit I.
Preferably, the interval width of adjacent picture elements IaSatisfies the following formula
Wherein the content of the first and second substances,wis the aperture width of the pinhole,lis the best viewing distance for the user,gis the distance between the display screen and the pinhole array.
Preferably, the width of the picture element IqAnd the width of the interval between adjacent picture elements IaRespectively as follows:
wherein the content of the first and second substances,pis the pitch of the pin-holes,wis the aperture width of the pinhole and,lis the best viewing distance for the user,gis the distance between the display screen and the pinhole array.
Preferably, the horizontal viewing angle of the 3D image Iθ 1 Vertical viewing angle of 3D image Iθ 2 Horizontal viewing perspective of 3D image IIθ 3 Vertical viewing angle of 3D image IIθ 4 Optical efficiency of 3D image Iφ 1 Optical efficiency of 3D image IIφ 2 Respectively as follows:
wherein the content of the first and second substances,pis the pitch of the pinholes and is,qis the width of the picture element I,wis the aperture width of the pinhole,lis the best viewing distance for the user,gis the distance between the display screen and the pinhole array,tis the light transmission of the polarization grating and the polarization glasses.
The pitch of the pinholes is 10mm, the aperture width of the pinholes is 2mm, the distance between the display screen and the pinhole array is 10mm, the optimal viewing distance is 500mm, the number of image elements I which are corresponding to the same grating unit I and are discretely arranged in the horizontal direction is 2, the number of the pinholes in the horizontal direction is 8, the number of the pinholes in the vertical direction is 6, the light transmittance of the polarization grating and the polarization glasses is 0.5, and then the pitch of the grating unit I and the grating unit II is 20.4mm through calculation of the formula (1); the widths of the image elements I and the interval widths of the adjacent image elements I are respectively 8.16mm and 2.04mm calculated by the formulas (3) and (4); the horizontal viewing angle of the 3D image I, the vertical viewing angle of the 3D image I, the horizontal viewing angle of the 3D image II, the vertical viewing angle of the 3D image II, the optical efficiency of the 3D image I, and the optical efficiency of the 3D image II are 54 °, 3%, respectively, calculated from equations (5), (6), and (7); the horizontal viewing angle of the 3D image I, the vertical viewing angle of the 3D image I, the horizontal viewing angle of the 3D image II, the vertical viewing angle of the 3D image II, the optical efficiency of the 3D image I, and the optical efficiency of the 3D image II of the prior art scheme based on the above parameters are 38 °, 2%, and 2%, respectively.
Claims (4)
1. A dual-view 3D display method based on polarized glasses realizes dual-view 3D display through integrated imaging display equipment; the integrated imaging display device is characterized by comprising a display screen, a polarization grating, a pinhole array, a pair of polarization glasses I and a pair of polarization glasses II; the display screen, the polarization grating and the pinhole array are sequentially arranged in parallel and are correspondingly aligned; the polarization grating is attached to the display screen; the polarization grating is formed by alternately arranging grating units I and grating units II, and the polarization direction of the grating units I is orthogonal to that of the grating units II; the display screen is used for displaying the discrete composite image element array; the discrete composite image element array comprises a plurality of image elements I and image elements II which are arranged discretely; the width of picture element I is equal to the width of picture element II; the interval width of the adjacent image element I, the interval width of the adjacent image element II and the interval widths of the adjacent image element I and the adjacent image element II are equal; width of picture element IqThe width of the interval between adjacent picture elements IaAnd pitch of the pin holepSatisfies the following formula
Wherein, the first and the second end of the pipe are connected with each other,lis the best viewing distance for the user,gis the distance between the display screen and the pinhole array; a plurality of image elements I which are discretely arranged in the horizontal direction are correspondingly aligned with the same grating unit I; a plurality of image elements II which are discretely arranged in the horizontal direction are correspondingly aligned with the same grating unit II; reconstructing a 3D image by the image element I through the corresponding grating unit I and the pinholeLike I, the light rays emitted by the image element I adjacent to the image element I do not interfere with the 3D image I reconstructed by the image element I; the image element II reconstructs a 3D image II through the corresponding grating unit II and the pinhole, and the light rays emitted by the image element II adjacent to the image element II cannot interfere with the 3D image II reconstructed by the image element II; the imaging areas of the image elements I are all overlapped at the optimal viewing distance; the imaging areas of the image elements II are all overlapped at the optimal viewing distance; the polarization direction of the polarization glasses I is the same as that of the grating unit I, and the polarization direction of the polarization glasses II is the same as that of the grating unit II; only the 3D image I can be seen through the polarized glasses I, and only the 3D image II can be seen through the polarized glasses II; horizontal viewing perspective of 3D image Iθ 1 Vertical viewing angle of 3D image Iθ 2 Horizontal viewing perspective of 3D image IIθ 3 Vertical viewing angle of 3D image IIθ 4 Optical efficiency of 3D image Iφ 1 Optical efficiency of 3D image IIφ 2 Respectively as follows:
wherein the content of the first and second substances,wis the aperture width of the pinhole,tis the light transmission of the polarization grating and the polarization glasses.
2. The polarized glasses-based dual-view 3D display method according to claim 1, wherein the number of image elements I discretely arranged in the horizontal direction corresponding to the same raster unit I is equal to the number of image elements I discretely arranged in the horizontal direction corresponding to the same raster unit IIThe number of picture elements II of a column; pitch of grating unit I and grating unit IIsCalculated from the following formula
Wherein the content of the first and second substances,pis the pitch of the pin-holes,kis the number of picture elements I which are arranged discretely in the horizontal direction corresponding to the same raster unit I.
3. A polarized glasses based dual view 3D display method according to claim 1, wherein the interval width of adjacent image elements IaSatisfies the following formula
Wherein the content of the first and second substances,wis the aperture width of the pinhole,lis the best viewing distance for the user,gis the distance between the display screen and the pinhole array.
4. A polarized glasses based dual view 3D display method according to claim 3, wherein the width of the picture element IqAnd the width of the interval between adjacent picture elements IaRespectively as follows:
wherein the content of the first and second substances,pis the pitch of the pinholes and is,wis the aperture width of the pinhole,lis the best viewing distance for the user,gis the distance between the display screen and the pinhole array.
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