CN211786413U - Double-vision 3D display device - Google Patents
Double-vision 3D display device Download PDFInfo
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- CN211786413U CN211786413U CN202020866143.1U CN202020866143U CN211786413U CN 211786413 U CN211786413 U CN 211786413U CN 202020866143 U CN202020866143 U CN 202020866143U CN 211786413 U CN211786413 U CN 211786413U
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Abstract
The utility model discloses a double-vision 3D display device, which comprises a display screen, a polaroid, a gradual-change pitch cylindrical lens grating, a pair of polarized glasses I and a pair of polarized glasses II; the polaroid is tightly attached to the display screen and is positioned between the display screen and the cylindrical lens grating with the gradually changed pitch; the sub-polarizing film I is correspondingly aligned with the left half part of the display screen, and the sub-polarizing film II is correspondingly aligned with the right half part of the display screen; the image element I reconstructs a 3D image I through the lens unit corresponding to the image element I and the sub-polaroid I, and the 3D image I can be seen only through polarized glasses I; the image element II reconstructs a 3D image II through the lens unit corresponding to the image element II and the sub-polaroid II, and the 3D image II can only be seen through the polarized glasses II; the viewing angle and resolution of the 3D image I and the 3D image II are respectively equal.
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.
Background
The one-dimensional integrated imaging double-view 3D display is the fusion of a double-view display technology and a one-dimensional integrated imaging 3D display technology. It may enable the viewer to see different 3D pictures in different viewing directions. The one-dimensional integrated imaging dual-view 3D display has the advantage of high resolution. However, the conventional integrated imaging dual-view 3D display based on the polarizer has a disadvantage of a narrow viewing angle.
Disclosure of Invention
The utility model provides a double-vision 3D display device, as shown in figure 1, which is characterized in that the device comprises a display screen, a polaroid, a gradually-changed pitch cylindrical lens grating, a pair of polarized glasses I and a pair of polarized glasses II; the display screen, the polaroid and the cylindrical lenticulation with gradually changed pitch are arranged in parallel and are correspondingly aligned; the polaroid is tightly attached to the display screen and is positioned between the display screen and the cylindrical lens grating with the gradually changed pitch; the display screen is used for displaying the image element array and is positioned on the focal plane of the cylindrical lenticulation with gradually changed pitch; the picture element array comprises a picture element I and a picture element II, the picture element I is positioned in the left half part of the display screen, and the picture element II is positioned in the right half part of the display screen, as shown in FIG. 2; the pitches of the lens units in the gradient-pitch cylindrical lenticulation are gradually increased from the middle to two sides; first in the cylindrical lens grating with gradually changed pitchesiPitch of column lens unitP i Calculated from the following formula
Wherein the content of the first and second substances,pis the pitch of the lens element located in the middle of the graded-pitch cylindrical lenticular lens,mis the number of lenticular elements in the gradient-pitch lenticular lens,lis the viewing distance, the distance between the viewer,gis the distance between the display screen and the cylindrical lenticular lens grating with gradually changed pitch,nis the refractive index of the graded-pitch cylindrical lenticular lens,dis the thickness of the graded-pitch cylindrical lenticular lens,iis less than or equal tomA positive integer of (d); the polaroid consists of a sub-polaroid I and a sub-polaroid II, wherein the polarization directions of the sub-polaroid I and the sub-polaroid II are orthogonal, and are shown in the attached figure 3; the widths of the sub-polaroid I and the sub-polaroid II are equal to half of the width of the display screen; the sub-polarizing film I is correspondingly aligned with the left half part of the display screen, and the sub-polarizing film II is correspondingly aligned with the right half part of the display screen; the polarization direction of the polarization glasses I is the same as that of the sub-polaroid I, and the polarization direction of the polarization glasses II is the same as that of the sub-polaroid II; the pitch of the picture element I is equal to the pitch of the lens element corresponding thereto; the pitch of the picture element II is equal to the pitch of the lens unit corresponding thereto; the image element I reconstructs a 3D image I through the lens unit corresponding to the image element I and the sub-polaroid I, and the 3D image I can be seen only through polarized glasses I; the image element II reconstructs a 3D image II through the lens unit corresponding to the image element II and the sub-polaroid II, and the 3D image II can only be seen through the polarized glasses II; the viewing angle and the resolution of the 3D image I and the 3D image II are respectively equal; viewing angle of 3D image I and 3D image IIθAnd resolutionRRespectively as follows:
drawings
FIG. 1 is a schematic diagram of the structure and parameters of the present invention
FIG. 2 is a schematic diagram of the structure of the image element array of the present invention
FIG. 3 is a schematic structural view of the polarizer of the present invention
The reference numbers in the figures are:
1. the display comprises a display screen, 2 polarizer, 3 gradient pitch cylindrical lens grating, 4 polarizing glasses I, 5 polarizing glasses II, 6 image element I, 7 image element II, 8 sub polarizer I, 9 sub polarizer II, 10.3D image I and 11.3D image 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 a dual-view 3D display device in detail, and further details the present invention. 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-vision 3D display device, as shown in figure 1, which is characterized in that the device comprises a display screen, a polaroid, a gradually-changed pitch cylindrical lens grating, a pair of polarized glasses I and a pair of polarized glasses II; the display screen, the polaroid and the cylindrical lenticulation with gradually changed pitch are arranged in parallel and are correspondingly aligned; the polaroid is tightly attached to the display screen and is positioned between the display screen and the cylindrical lens grating with the gradually changed pitch; the display screen is used for displaying the image element array and is positioned on the focal plane of the cylindrical lenticulation with gradually changed pitch; the picture element array comprises a picture element I and a picture element II, the picture element I is positioned in the left half part of the display screen, and the picture element II is positioned in the right half part of the display screen, as shown in FIG. 2; the pitches of the lens units in the gradient-pitch cylindrical lenticulation are gradually increased from the middle to two sides; first in the cylindrical lens grating with gradually changed pitchesiPitch of column lens unitP i Calculated from the following formula
Wherein the content of the first and second substances,pis the pitch of the lens element located in the middle of the graded-pitch cylindrical lenticular lens,mis the number of lenticular elements in the gradient-pitch lenticular lens,lis the viewing distance, the distance between the viewer,gis the distance between the display screen and the cylindrical lenticular lens grating with gradually changed pitch,nis the refractive index of the graded-pitch cylindrical lenticular lens,dis the thickness of the graded-pitch cylindrical lenticular lens,iis less than or equal tomA positive integer of (d); the polaroid consists of a sub-polaroid I and a sub-polaroid II, wherein the polarization directions of the sub-polaroid I and the sub-polaroid II are orthogonal, and are shown in the attached figure 3; the widths of the sub-polaroid I and the sub-polaroid II are equal to half of the width of the display screen; the sub-polarizing film I is correspondingly aligned with the left half part of the display screen, and the sub-polarizing film II is correspondingly aligned with the right half part of the display screen; the polarization direction of the polarization glasses I is the same as that of the sub-polaroid I, and the polarization direction of the polarization glasses II is the same as that of the sub-polaroid II; the pitch of the picture element I is equal to the pitch of the lens element corresponding thereto; the pitch of the picture element II is equal to the pitch of the lens unit corresponding thereto; the image element I reconstructs a 3D image I through the lens unit corresponding to the image element I and the sub-polaroid I, and the 3D image I can be seen only through polarized glasses I; the image element II reconstructs a 3D image II through the lens unit corresponding to the image element II and the sub-polaroid II, and the 3D image II can only be seen through the polarized glasses II; the viewing angle and the resolution of the 3D image I and the 3D image II are respectively equal; viewing angle of 3D image I and 3D image IIθAnd resolutionRRespectively as follows:
the pitch of the lens unit in the middle of the cylindrical lens grating with gradually changed pitch isp=6mm, the number of lenticular elements in a graded-pitch lenticular lensm=8, viewing distance ofl=205mm, the distance between the display screen and the cylindrical lenticular lens grating with gradually changed pitch isg=5mm, refractive index of graded-pitch cylindrical lens gratingn=2, graduated pitch columnThe thickness of the lenticular lens isd=2 mm. The pitches of the 1 st to 8 th rows of lens units in the cylindrical lens grating with the gradually-changed pitch are respectively 7.1mm, 6.7mm, 6.3mm, 6mm, 6.3mm, 6.7mm and 7.1mm according to the formula (1); the viewing angles and resolutions of the 3D image I and the 3D image II are 52 ° and 4, respectively, as obtained from equations (2) and (3).
Claims (1)
1. A double-vision 3D display device is characterized by comprising a display screen, a polaroid, a cylindrical lens grating with gradually changed pitches, a pair of polarized glasses I and a pair of polarized glasses II; the display screen, the polaroid and the cylindrical lenticulation with gradually changed pitch are arranged in parallel and are correspondingly aligned; the polaroid is tightly attached to the display screen and is positioned between the display screen and the cylindrical lens grating with the gradually changed pitch; the display screen is used for displaying the image element array and is positioned on the focal plane of the cylindrical lenticulation with gradually changed pitch; the image element array comprises an image element I and an image element II, wherein the image element I is positioned on the left half part of the display screen, and the image element II is positioned on the right half part of the display screen; the pitches of the lens units in the gradient-pitch cylindrical lenticulation are gradually increased from the middle to two sides; first in the cylindrical lens grating with gradually changed pitchesiPitch of column lens unitP i Calculated from the following formula
Wherein the content of the first and second substances,pis the pitch of the lens element located in the middle of the graded-pitch cylindrical lenticular lens,mis the number of lenticular elements in the gradient-pitch lenticular lens,lis the viewing distance, the distance between the viewer,gis the distance between the display screen and the cylindrical lenticular lens grating with gradually changed pitch,nis the refractive index of the graded-pitch cylindrical lenticular lens,dis the thickness of the graded-pitch cylindrical lenticular lens,iis less than or equal tomA positive integer of (d); the polaroid consists of a sub-polaroid I and a sub-polaroid II, and the polarization directions of the sub-polaroid I and the sub-polaroid II are orthogonal; the widths of the sub-polaroid I and the sub-polaroid II are equal to half of the width of the display screen; the sub-polarizing film I is correspondingly aligned with the left half part of the display screen, and the sub-polarizing film II is correspondingly aligned with the right half part of the display screen; polarization of polarized glasses IThe vibration direction is the same as that of the sub-polaroid I, and the polarization direction of the polarized glasses II is the same as that of the sub-polaroid II; the pitch of the picture element I is equal to the pitch of the lens element corresponding thereto; the pitch of the picture element II is equal to the pitch of the lens unit corresponding thereto; the image element I reconstructs a 3D image I through the lens unit corresponding to the image element I and the sub-polaroid I, and the 3D image I can be seen only through polarized glasses I; the image element II reconstructs a 3D image II through the lens unit corresponding to the image element II and the sub-polaroid II, and the 3D image II can only be seen through the polarized glasses II; the viewing angle and the resolution of the 3D image I and the 3D image II are respectively equal; viewing angle of 3D image I and 3D image IIθAnd resolutionRRespectively as follows:
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
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| CN202020866143.1U CN211786413U (en) | 2020-05-22 | 2020-05-22 | Double-vision 3D display device |
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| CN202020866143.1U CN211786413U (en) | 2020-05-22 | 2020-05-22 | Double-vision 3D display device |
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Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113741054A (en) * | 2021-09-11 | 2021-12-03 | 成都工业学院 | High resolution and wide viewing angle 3D display device |
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Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN113741054A (en) * | 2021-09-11 | 2021-12-03 | 成都工业学院 | High resolution and wide viewing angle 3D display device |
| CN113741054B (en) * | 2021-09-11 | 2024-05-14 | 成都工业学院 | High resolution and wide viewing angle 3D display device |
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