CN211928323U - Double-vision 3D display device based on polarization glasses - Google Patents

Abstract

The utility model discloses a double-vision 3D display device based on polarized glasses, which comprises a display screen, a gradient pitch polarized grating, a gradient pitch rectangular pinhole array, polarized glasses I and polarized glasses II; the grating I is positioned in the odd-numbered rows of the gradient pitch polarization grating, and the grating II is positioned in the even-numbered rows of the gradient pitch polarization grating; the rectangular image element I is positioned in the odd-numbered columns of the gradient-pitch rectangular image element array, and the rectangular image element II is positioned in the even-numbered columns of the gradient-pitch rectangular image element array; the rectangular image element I reconstructs a 3D image I through the corresponding grating I and the rectangular pinhole, and can only be seen through the polarized glasses I; the rectangular image element II reconstructs a 3D image II through the corresponding grating II and the rectangular pinhole, and the 3D image II can only be seen through the polarized glasses II.

Description

Double-vision 3D display device based on polarization glasses

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 polarization glasses.

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. However, in conventional integrated imaging dual view 3D display, both the image elements and the pinholes are square, i.e. the horizontal pitch of the image elements and the pinholes is equal to the vertical pitch. The horizontal width and the vertical width of the display are not equal, so that the traditional integrated imaging double-vision 3D display has the problem that the horizontal resolution is not equal to the vertical resolution. The horizontal resolution is not equal to the vertical resolution, which further deepens the problem of poor viewing experience caused by low resolution. In addition, the horizontal viewing angle of each 3D image in the conventional integrated imaging dual-view 3D display is inversely proportional to the number of picture elements I and II in the horizontal direction, respectively.

Disclosure of Invention

The utility model provides a look 3D display device doubly based on polarization glasses, as shown in the attached figure 1, its characterized in that, including display screen, gradual change pitch polarization grating, gradual change pitch rectangle pinhole array, polarization glasses I and polarization glasses II; the display screen is provided with a gradually-changed pitch polarization grating, and the gradually-changed pitch rectangular pinhole arrays are sequentially arranged in parallel and correspondingly aligned; the gradient pitch polarization grating is tightly attached to the display screen and is positioned between the display screen and the gradient pitch rectangular pinhole array; the horizontal widths of the display screen, the gradient pitch polarization grating and the gradient pitch rectangular pinhole array are the same, and the display screen and the gradient pitch are all the sameThe vertical widths of the polarization grating and the gradient pitch rectangular pinhole array are the same; the number of rectangular pinholes in the horizontal direction of the gradual pitch rectangular pinhole array is equal to twice the number of rectangular pinholes in the vertical direction; the ratio of the horizontal pitch to the vertical pitch of the rectangular pinholes in the central position of the gradient-pitch rectangular pinhole array is equal to half of the ratio of the horizontal width to the vertical width of the gradient-pitch rectangular pinhole array; in the gradually-changed pitch rectangular pinhole arrayiHorizontal pitch of rows of rectangular pinholesH _i The first stepjVertical pitch of row rectangular pinholesV _j Calculated from the following formula

（1）

（2）

Wherein the content of the first and second substances,pis the horizontal pitch of the rectangular pinholes at the central position of the gradient pitch rectangular pinhole array,mis the number of rectangular pinholes in the horizontal direction in the gradually-changed pitch rectangular pinhole array,lis the viewing distance, the distance between the viewer,gis the distance between the display screen and the gradually-changed pitch rectangular pinhole array,vis the ratio of the vertical width to the horizontal width of the gradual pitch rectangular pinhole array,iis less than or equal tomIs a positive integer of (a) to (b),jis less than or equal tomA positive integer of (d); the gradient pitch polarization grating comprises a grating I and a grating II; the grating I is positioned in the odd-numbered rows of the gradient pitch polarization grating, and the grating II is positioned in the even-numbered rows of the gradient pitch polarization grating; the polarization direction of the grating I is orthogonal to the polarization direction of the grating II; the pitch of the grating I is equal to the horizontal pitch of the corresponding rectangular pinhole, and the pitch of the grating II is equal to the horizontal pitch of the corresponding rectangular pinhole; the polarization direction of the polarization glasses I is the same as that of the grating I, and the polarization direction of the polarization glasses II is the same as that of the grating II; the display screen is used for displaying a gradient pitch rectangular image element array, and the gradient pitch rectangular image element array comprises rectangular image elements I and rectangular image elements II; rectangular image elementI is positioned in the odd columns of the rectangular image element array with the gradual change pitch, and the rectangular image element II is positioned in the even columns of the rectangular image element array with the gradual change pitch; the horizontal pitch of the rectangular image element I is equal to the horizontal pitch of the corresponding rectangular pinhole, and the vertical pitch of the rectangular image element I is equal to the vertical pitch of the corresponding rectangular pinhole; the horizontal pitch of the rectangular image element II is equal to the horizontal pitch of the corresponding rectangular pinhole, and the vertical pitch of the rectangular image element II is equal to the vertical pitch of the corresponding rectangular pinhole; the rectangular image element I reconstructs a 3D image I through the corresponding grating I and the rectangular pinhole, and can only be seen through the polarized glasses I; the rectangular image element II reconstructs a 3D image II through the corresponding grating II and the rectangular pinhole, and can only be seen through the polarized glasses II; horizontal viewing perspective of each 3D image in integrated imaging dual view 3D displayθ ₁Vertical viewing angleθ ₂Horizontal resolutionR ₁Vertical resolutionR ₂All are as follows:

（3）

（4）

（5）

wherein the content of the first and second substances,wis the aperture width of the rectangular pinhole.

Drawings

FIG. 1 is a schematic diagram of the structure and parameters of the present invention

The reference numbers in the figures are:

1. the display screen comprises a display screen, 2 gradient pitch polarization gratings, 3 gradient pitch rectangular pinhole arrays, 4 polarization glasses I, 5 polarization glasses II, 6 rectangular image elements I, 7 rectangular image elements II, 8 gratings I, 9 gratings II, 10.3D images I and 11.3D images II.

It should be understood that the above-described figures are merely schematic and are not drawn to scale.

Detailed Description

The following describes an exemplary embodiment of the dual-view 3D display device based on polarized glasses in detail, 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 look 3D display device doubly based on polarization glasses, as shown in the attached figure 1, its characterized in that, including display screen, gradual change pitch polarization grating, gradual change pitch rectangle pinhole array, polarization glasses I and polarization glasses II; the display screen is provided with a gradually-changed pitch polarization grating, and the gradually-changed pitch rectangular pinhole arrays are sequentially arranged in parallel and correspondingly aligned; the gradient pitch polarization grating is tightly attached to the display screen and is positioned between the display screen and the gradient pitch rectangular pinhole array; the horizontal widths of the display screen, the gradient pitch polarization grating and the gradient pitch rectangular pinhole array are the same, and the vertical widths of the display screen, the gradient pitch polarization grating and the gradient pitch rectangular pinhole array are the same; the number of rectangular pinholes in the horizontal direction of the gradual pitch rectangular pinhole array is equal to twice the number of rectangular pinholes in the vertical direction; the ratio of the horizontal pitch to the vertical pitch of the rectangular pinholes in the central position of the gradient-pitch rectangular pinhole array is equal to half of the ratio of the horizontal width to the vertical width of the gradient-pitch rectangular pinhole array; in the gradually-changed pitch rectangular pinhole arrayiHorizontal pitch of rows of rectangular pinholesH _i The first stepjVertical pitch of row rectangular pinholesV _j Calculated from the following formula

（1）

（2）

Wherein the content of the first and second substances,pis the horizontal pitch of the rectangular pinholes at the central position of the gradient pitch rectangular pinhole array,mis the number of rectangular pinholes in the horizontal direction in the gradually-changed pitch rectangular pinhole array,lis the viewing distance, the distance between the viewer,gis the distance between the display screen and the gradually-changed pitch rectangular pinhole array,vis the ratio of the vertical width to the horizontal width of the gradual pitch rectangular pinhole array,iis less than or equal tomIs a positive integer of (a) to (b),jis less than or equal tomA positive integer of (d); the gradient pitch polarization grating comprises a grating I and a grating II; the grating I is positioned in the odd-numbered rows of the gradient pitch polarization grating, and the grating II is positioned in the even-numbered rows of the gradient pitch polarization grating; the polarization direction of the grating I is orthogonal to the polarization direction of the grating II; the pitch of the grating I is equal to the horizontal pitch of the corresponding rectangular pinhole, and the pitch of the grating II is equal to the horizontal pitch of the corresponding rectangular pinhole; the polarization direction of the polarization glasses I is the same as that of the grating I, and the polarization direction of the polarization glasses II is the same as that of the grating II; the display screen is used for displaying a gradient pitch rectangular image element array, and the gradient pitch rectangular image element array comprises rectangular image elements I and rectangular image elements II; the rectangular image element I is positioned in the odd-numbered columns of the gradient-pitch rectangular image element array, and the rectangular image element II is positioned in the even-numbered columns of the gradient-pitch rectangular image element array; the horizontal pitch of the rectangular image element I is equal to the horizontal pitch of the corresponding rectangular pinhole, and the vertical pitch of the rectangular image element I is equal to the vertical pitch of the corresponding rectangular pinhole; the horizontal pitch of the rectangular image element II is equal to the horizontal pitch of the corresponding rectangular pinhole, and the vertical pitch of the rectangular image element II is equal to the vertical pitch of the corresponding rectangular pinhole; the rectangular image element I reconstructs a 3D image I through the corresponding grating I and the rectangular pinhole, and can only be seen through the polarized glasses I; the rectangular image element II reconstructs a 3D image II through the corresponding grating II and the rectangular pinhole, and can only be seen through the polarized glasses II; horizontal viewing perspective of each 3D image in integrated imaging dual view 3D displayθ ₁Vertical viewing angleθ ₂Horizontal resolutionR ₁Vertical resolutionR ₂All are as follows:

（3）

（4）

（5）

wherein the content of the first and second substances,wis the aperture width of the rectangular pinhole.

The ratio of the vertical width to the horizontal width of the gradient-pitch rectangular pinhole array is 0.6, and the horizontal pitch of the rectangular pinholes at the center of the gradient-pitch rectangular pinhole array isp=10mm, the number of rectangular pinholes in the horizontal direction in the gradient pitch rectangular pinhole array ism=8, aperture width of rectangular pinhole isw=2mm, viewing distancel=510mm, the distance between the display screen and the gradual change pitch rectangular pinhole array isg=10 mm. According to the formula (1), the horizontal pitches of the 1 st to 8 th rows of rectangular pinhole arrays in the gradually-changed pitch rectangular pinhole array are respectively 11.2mm, 10.8mm, 10.4mm, 10mm, 10.4mm, 10.8mm and 11.2 mm; obtaining the vertical pitches of the 1 st to 4 th rows of rectangular pinhole arrays in the gradient pitch rectangular pinhole array according to the formula (2) as 12.5mm, 12mm and 12.5mm respectively; the horizontal viewing angle, the vertical viewing angle, the horizontal resolution and the vertical resolution of the 3D image I and the 3D image II are respectively 62 °, 54 °, 4 and 4, which are obtained from the equations (3), (4) and (5).

Claims (1)

1. The double-view 3D display device based on the polarized glasses is characterized by comprising a display screen, a gradient pitch polarized grating, a gradient pitch rectangular pinhole array, polarized glasses I and polarized glasses II;the display screen is provided with a gradually-changed pitch polarization grating, and the gradually-changed pitch rectangular pinhole arrays are sequentially arranged in parallel and correspondingly aligned; the gradient pitch polarization grating is tightly attached to the display screen and is positioned between the display screen and the gradient pitch rectangular pinhole array; the horizontal widths of the display screen, the gradient pitch polarization grating and the gradient pitch rectangular pinhole array are the same, and the vertical widths of the display screen, the gradient pitch polarization grating and the gradient pitch rectangular pinhole array are the same; the number of rectangular pinholes in the horizontal direction of the gradual pitch rectangular pinhole array is equal to twice the number of rectangular pinholes in the vertical direction; the ratio of the horizontal pitch to the vertical pitch of the rectangular pinholes in the central position of the gradient-pitch rectangular pinhole array is equal to half of the ratio of the horizontal width to the vertical width of the gradient-pitch rectangular pinhole array; in the gradually-changed pitch rectangular pinhole arrayiHorizontal pitch of rows of rectangular pinholesH _i The first stepjVertical pitch of row rectangular pinholesV _j Calculated from the following formula

（1）

（2）

Wherein the content of the first and second substances,pis the horizontal pitch of the rectangular pinholes at the central position of the gradient pitch rectangular pinhole array,mis the number of rectangular pinholes in the horizontal direction in the gradually-changed pitch rectangular pinhole array,lis the viewing distance, the distance between the viewer,gis the distance between the display screen and the gradually-changed pitch rectangular pinhole array,vis the ratio of the vertical width to the horizontal width of the gradual pitch rectangular pinhole array,iis less than or equal tomIs a positive integer of (a) to (b),jis less than or equal tomA positive integer of (d); the gradient pitch polarization grating comprises a grating I and a grating II; the grating I is positioned in the odd-numbered rows of the gradient pitch polarization grating, and the grating II is positioned in the even-numbered rows of the gradient pitch polarization grating; the polarization direction of the grating I is orthogonal to the polarization direction of the grating II; pitch of grating I, etcThe pitch of the grating II is equal to the horizontal pitch of the corresponding rectangular pinhole; the polarization direction of the polarization glasses I is the same as that of the grating I, and the polarization direction of the polarization glasses II is the same as that of the grating II; the display screen is used for displaying a gradient pitch rectangular image element array, and the gradient pitch rectangular image element array comprises rectangular image elements I and rectangular image elements II; the rectangular image element I is positioned in the odd-numbered columns of the gradient-pitch rectangular image element array, and the rectangular image element II is positioned in the even-numbered columns of the gradient-pitch rectangular image element array; the horizontal pitch of the rectangular image element I is equal to the horizontal pitch of the corresponding rectangular pinhole, and the vertical pitch of the rectangular image element I is equal to the vertical pitch of the corresponding rectangular pinhole; the horizontal pitch of the rectangular image element II is equal to the horizontal pitch of the corresponding rectangular pinhole, and the vertical pitch of the rectangular image element II is equal to the vertical pitch of the corresponding rectangular pinhole; the rectangular image element I reconstructs a 3D image I through the corresponding grating I and the rectangular pinhole, and can only be seen through the polarized glasses I; the rectangular image element II reconstructs a 3D image II through the corresponding grating II and the rectangular pinhole, and can only be seen through the polarized glasses II; horizontal viewing perspective of each 3D image in integrated imaging dual view 3D displayθ ₁Vertical viewing angleθ ₂Horizontal resolutionR ₁Vertical resolutionR ₂All are as follows:

wherein the content of the first and second substances,wis the aperture width of the rectangular pinhole.

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