CN207067548U - Integration imaging 3D display device based on polarization grating and microlens array - Google Patents

Integration imaging 3D display device based on polarization grating and microlens array Download PDF

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Publication number
CN207067548U
CN207067548U CN201720372542.0U CN201720372542U CN207067548U CN 207067548 U CN207067548 U CN 207067548U CN 201720372542 U CN201720372542 U CN 201720372542U CN 207067548 U CN207067548 U CN 207067548U
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China
Prior art keywords
polarization
grid line
polarization grating
grating
line unit
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Expired - Fee Related
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CN201720372542.0U
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Chinese (zh)
Inventor
樊为
范钧
吴睿
邓慧
高燕
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Chengdu Technological University CDTU
Chengdu Univeristy of Technology
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Chengdu Technological University CDTU
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Abstract

The utility model discloses a kind of integration imaging 3D display device based on polarization grating and microlens array, including 2D display screens, polarization grating I, polarization grating II, microlens array.The polarization direction of grid line unit is identical with the polarization direction of grid line unit in polarization grating II corresponding to lens cells corresponding to the image primitive in polarization grating I corresponding to each image primitive, polarization grating I to be changed into the polarised light with different polarization direction by its light, and polarization grating II has modulating action to polarised light;The light that each image primitive is sent can form normal vision area by lens cells corresponding with the image primitive, and the light that each image primitive is sent can not form crosstalk image by the adjacent lens cells of lens cells corresponding with the image primitive.

Description

Integration imaging 3D display device based on polarization grating and microlens array
Technical field
Integration imaging 3D display technology is the utility model is related to, more specifically, the utility model is related to a kind of based on inclined Shake the integration imaging 3D display technology of grating and microlens array.
Background technology
Integration imaging 3D display make use of light path principle, be recorded the steric information of 3D scenes by microlens array Onto image recorder, micro- pattern matrix is generated, then micro- pattern matrix is shown on 2D display screens, through micro- Lens array reconstructs the stereo-picture of former 3D scenes.But current integration imaging 3D display has the shortcomings of crosstalk, so as to limit Its practical application is made.
As shown in Figure 1, in traditional integration imaging 3D display based on microlens array, each image primitive is sent Light form normal vision area by lens cells corresponding with the image primitive, in normal vision area, the image primitive rebuild 3D figure As having correct parallax and depth.The common portion for the normal vision area that all image primitives are rebuild is the master of integration imaging 3D display Vision area, the 3D rendering in primary vision area have correct parallax and depth.But the light that each image primitive is sent can also pass through The adjacent lens cells of lens cells corresponding with the image primitive form crosstalk image.
The content of the invention
The utility model proposes the integration imaging 3D display device based on polarization grating and microlens array, such as accompanying drawing 2 It is shown, including 2D display screens, polarization grating I, polarization grating II, microlens array.2D display screens are used to show micro- pattern matrix. As shown in Figure 3, polarization grating I and 2D display screens are brought into close contact, and polarization grating II is brought into close contact with microlens array.Polarised light By the grid line unit of series of identical size, close-packed arrays form grid I in the horizontal direction, and each grid line unit only has one kind Polarization direction, the polarization direction of two grid line units of arbitrary neighborhood are orthogonal.The number of grid line unit and micro- figure in polarization grating I As the number of array horizontal direction epigraph member is equal, in polarization grating I in the horizontal width of grid line unit and micro- pattern matrix The horizontal width of image primitive is equal.Polarization grating II by series of identical size grid line unit close-packed arrays in the horizontal direction Composition, each grid line unit only have a kind of polarization direction, and the polarization direction of two grid line units of arbitrary neighborhood is orthogonal.Polarization The number of grid line unit is equal with the number of lens cells in microlens array horizontal direction in grating II, grid line in polarization grating II The horizontal width of unit is equal with the horizontal width of lens cells in microlens array.
Characterized in that, the polarization direction of grid line unit and the image primitive in polarization grating I corresponding to each image primitive The polarization direction of grid line unit is identical in polarization grating II corresponding to corresponding lens cells, and polarization grating I causes the light by it It is changed into the polarised light with different polarization direction, and polarization grating II has modulating action to polarised light;Each image primitive is sent out The light gone out can form normal vision area by lens cells corresponding with the image primitive, and the light that each image primitive is sent is equal Crosstalk image can not be formed by the adjacent lens cells of lens cells corresponding with the image primitive.
Brief description of the drawings
Accompanying drawing 1 is the crosstalk schematic diagram of traditional integration imaging 3D display device based on microlens array
Accompanying drawing 2 be the utility model proposes integration imaging 3D display device structure chart
Accompanying drawing 3 be the utility model proposes integration imaging 3D display device schematic diagram
Shown by reference numeral in above-mentioned accompanying drawing is:
1. micro- pattern matrix, 2. microlens arrays, 3. image primitives, 4. traditional integration imaging 3D based on microlens array The normal vision area that single image member is rebuild in display device, 5. traditional integration imaging 3D display devices based on microlens array Middle single image member passes through the crosstalk vision area of the adjacent lens cells of lens cells corresponding with the image primitive, 6.2D display screens, 7. viewings Person, 8. polarization grating I, 9. polarization grating II.
It should be appreciated that above-mentioned accompanying drawing is simply schematical, it is not drawn to draw.
Embodiment
The following detailed description of what is shown using integration imaging 3D of the utility model based on polarization grating and microlens array One exemplary embodiments, the utility model is further described specifically.It is necessarily pointed out that following examples It is served only for the utility model to be described further, it is impossible to be interpreted as the limitation to scope of protection of the utility model, the field skill Art skilled person makes some nonessential modifications and adaptations to the utility model according to above-mentioned the utility model content, still falls within The scope of protection of the utility model.
The utility model proposes the integration imaging 3D display device based on polarization grating and microlens array, such as accompanying drawing 2 It is shown, including 2D display screens, polarization grating I, polarization grating II, microlens array.2D display screens are used to show micro- pattern matrix. As shown in Figure 3, polarization grating I and 2D display screens are brought into close contact, and polarization grating II is brought into close contact with microlens array.Polarised light By the grid line unit of series of identical size, close-packed arrays form grid I in the horizontal direction, and each grid line unit only has one kind Polarization direction, the polarization direction of two grid line units of arbitrary neighborhood are orthogonal.The number of grid line unit and micro- figure in polarization grating I As the number of array horizontal direction epigraph member is equal, in polarization grating I in the horizontal width of grid line unit and micro- pattern matrix The horizontal width of image primitive is equal.Polarization grating II by series of identical size grid line unit close-packed arrays in the horizontal direction Composition, each grid line unit only have a kind of polarization direction, and the polarization direction of two grid line units of arbitrary neighborhood is orthogonal.Polarization The number of grid line unit is equal with the number of lens cells in microlens array horizontal direction in grating II, grid line in polarization grating II The horizontal width of unit is equal with the horizontal width of lens cells in microlens array.
Characterized in that, the polarization direction of grid line unit and the image primitive in polarization grating I corresponding to each image primitive The polarization direction of grid line unit is identical in polarization grating II corresponding to corresponding lens cells, and polarization grating I causes the light by it It is changed into the polarised light with different polarization direction, and polarization grating II has modulating action to polarised light;Each image primitive is sent out The light gone out can form normal vision area by lens cells corresponding with the image primitive, and the light that each image primitive is sent is equal Crosstalk image can not be formed by the adjacent lens cells of lens cells corresponding with the image primitive.

Claims (1)

1. the integration imaging 3D display device based on polarization grating and microlens array, including 2D display screens, polarization grating I, partially Shake grating II, microlens array;2D display screens are used to show micro- pattern matrix;Polarization grating I and 2D display screens are brought into close contact, partially The grating II that shakes is brought into close contact with microlens array;Polarization grating I by series of identical size grid line unit in the horizontal direction Close-packed arrays form, and each grid line unit only has a kind of polarization direction, the polarization direction of two grid line units of arbitrary neighborhood It is orthogonal;The number of grid line unit is equal with the number of micro- pattern matrix horizontal direction epigraph member in polarization grating I, polarization grating The horizontal width of grid line unit is equal with the horizontal width of image primitive in micro- pattern matrix in I;Polarization grating II is by a series of phases With the grid line unit of size, close-packed arrays form in the horizontal direction, and each grid line unit only has a kind of polarization direction, arbitrarily The polarization direction of two adjacent grid line units is orthogonal;The number of grid line unit and microlens array level side in polarization grating II The number of upward lens cells is equal, in polarization grating II in the horizontal width and microlens array of grid line unit lens cells level Width is equal;Characterized in that, the polarization direction of grid line unit and the image primitive in polarization grating I corresponding to each image primitive The polarization direction of grid line unit is identical in polarization grating II corresponding to corresponding lens cells, and polarization grating I causes the light by it It is changed into the polarised light with different polarization direction, and polarization grating II has modulating action to polarised light;Each image primitive is sent out The light gone out can form normal vision area by lens cells corresponding with the image primitive, and the light that each image primitive is sent is equal Crosstalk image can not be formed by the adjacent lens cells of lens cells corresponding with the image primitive.
CN201720372542.0U 2017-04-11 2017-04-11 Integration imaging 3D display device based on polarization grating and microlens array Expired - Fee Related CN207067548U (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110161678A (en) * 2019-04-18 2019-08-23 深圳市麓邦技术有限公司 Optical beam scanner and its scan method
CN112305778A (en) * 2020-11-09 2021-02-02 北京理工大学 Method and system for expanding field angle of integrated imaging three-dimensional display system

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN110161678A (en) * 2019-04-18 2019-08-23 深圳市麓邦技术有限公司 Optical beam scanner and its scan method
CN112305778A (en) * 2020-11-09 2021-02-02 北京理工大学 Method and system for expanding field angle of integrated imaging three-dimensional display system

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