CN108761819B - Full parallax free three-dimensional display system - Google Patents
Full parallax free three-dimensional display system Download PDFInfo
- Publication number
- CN108761819B CN108761819B CN201810936864.2A CN201810936864A CN108761819B CN 108761819 B CN108761819 B CN 108761819B CN 201810936864 A CN201810936864 A CN 201810936864A CN 108761819 B CN108761819 B CN 108761819B
- Authority
- CN
- China
- Prior art keywords
- light
- collimation
- optical
- refraction
- module
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
- 230000003287 optical effect Effects 0.000 claims abstract description 76
- 238000009792 diffusion process Methods 0.000 claims abstract description 38
- 230000000694 effects Effects 0.000 claims abstract description 20
- 230000008859 change Effects 0.000 claims abstract description 10
- 239000002131 composite material Substances 0.000 claims description 14
- 230000000903 blocking effect Effects 0.000 claims description 8
- 238000013329 compounding Methods 0.000 claims description 8
- 230000005499 meniscus Effects 0.000 claims description 2
- 238000003384 imaging method Methods 0.000 abstract description 13
- 230000004075 alteration Effects 0.000 abstract description 5
- 230000000007 visual effect Effects 0.000 abstract description 4
- 238000005516 engineering process Methods 0.000 description 11
- 239000000463 material Substances 0.000 description 7
- 238000010586 diagram Methods 0.000 description 6
- 239000011521 glass Substances 0.000 description 5
- 239000005331 crown glasses (windows) Substances 0.000 description 4
- 230000007423 decrease Effects 0.000 description 4
- 239000005308 flint glass Substances 0.000 description 4
- 230000003068 static effect Effects 0.000 description 3
- 239000000088 plastic resin Substances 0.000 description 2
- 229920003229 poly(methyl methacrylate) Polymers 0.000 description 2
- 229920000515 polycarbonate Polymers 0.000 description 2
- 239000004926 polymethyl methacrylate Substances 0.000 description 2
- 230000004888 barrier function Effects 0.000 description 1
- 210000004556 brain Anatomy 0.000 description 1
- 238000004891 communication Methods 0.000 description 1
- 238000002059 diagnostic imaging Methods 0.000 description 1
- 210000000887 face Anatomy 0.000 description 1
- 230000004927 fusion Effects 0.000 description 1
- 239000004973 liquid crystal related substance Substances 0.000 description 1
- 238000004519 manufacturing process Methods 0.000 description 1
- 239000002184 metal Substances 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 239000002096 quantum dot Substances 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 238000006467 substitution reaction Methods 0.000 description 1
Classifications
-
- 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
- G02B30/27—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 lenticular arrays
Abstract
The invention provides a full parallax auto-stereoscopic display system, which comprises a display source, an optical collimation module, a refraction module and a diffusion structure, wherein the display source is connected with the optical collimation module; the display source comprises a plurality of pixel points, the optical collimation module comprises a plurality of optical collimation units, the refraction module comprises a plurality of refraction units, and the pixel points, the optical collimation units and the refraction units are arranged in one-to-one correspondence; the light ray collimation structure of the optical collimation unit is a positive focal power lens structure with curvature in the horizontal direction and the vertical direction, and the display source is arranged at the focal plane of the light ray collimation structure; the refraction unit is an optical structure which has a deflection effect on light rays in the horizontal direction and the vertical direction and does not change the light beam convergence; the diffusion structure is an optical structure having a diffusion effect in the horizontal direction and the vertical direction on the light. The light emitted by the display source is processed by the collimation module, the refraction module and the diffusion structure to realize free stereoscopic display, and the display has high imaging resolution, large visual angle, small aberration influence and good viewing experience.
Description
Technical Field
The embodiment of the invention relates to the technical field of three-dimensional display, in particular to a full parallax auto-stereoscopic display system.
Background
With the rapid development of science and technology, more and more fields such as medical imaging, military command, government emergency dispatch and communication media are no longer satisfied with 2D information provided by planar display, and 3D display capable of realizing full parallax, high definition and real reproduction of large viewing angle has become a pursuit target.
Integrated imaging display technology is the most well known light field display technology. The technology is different from the holographic display technology, the integrated imaging utilizes the lens array to display the modulation effect of the 2D display, and the 3D effect with true color can be easily realized. The integrated imaging 3D display technology can simultaneously provide the viewer with parallax in the horizontal and vertical directions and continuously smooth viewpoint information. With development of technology and hardware equipment, the integrated imaging technology not only can display still pictures, but also can collect and reconstruct dynamic images.
The integrated imaging display system can realize full parallax true three-dimensional display at present, and generally needs a light control structure to control the light direction emitted by a two-dimensional display to form a space viewpoint, so that the purpose that left eyes and right eyes respectively receive different parallax images is achieved, and then three-dimensional sense can be formed through brain fusion. Therefore, the free stereo display system generally consists of a 2D display and a light control structure, and performs image coding on 3D content according to specific parameters of the light control structure so as to realize 3D display.
The current integrated imaging technology also has the following problems to be perfected:
(1) Insufficient resolution: in conventional integrated imaging techniques, the resolution of the 3D image depends on the pitch of the lens elements, which needs to be reduced in order to increase the resolution. As the pitch of the lenticular elements decreases, the number of pixels under each lenticular element on the display screen also decreases, so that the number of controllable light rays from the lenticular elements decreases and the quality of the 3D image decreases. Integrated imaging 3D displays based on display screens require higher resolution display screens to compensate for the effects of the small pitch lenticular elements, but higher resolution 2D display screens are currently not available.
(2) The viewing angle is insufficient: the expression of the lens focal length f is:where r is the radius of curvature. According to the principle of lens light control and the triangle geometry relation, the viewing of the 3D stereoscopic display system of the current integrated imaging technology under ideal conditions can be obtained as follows: />In the existing free stereoscopic display, as the lens intercept p is smaller than or equal to two times of curvature radius, the refractive index n is generally 1.5, and the value range theta of theta is smaller than or equal to 52 degrees, namely the stereoscopic viewing angle is smaller, which is obtained according to the two formulas.
(3) The aberration is largely affected: in the integrated imaging technology, the lens array is used for modulating light rays, when the lens array modulates light rays, aberration phenomenon can be generated by the lens, crosstalk between viewpoints can be introduced, namely, the light rays entering one eye enter the other eye, so that ghost image phenomenon and image blurring can be caused, and the quality of three-dimensional stereoscopic display can be reduced.
Disclosure of Invention
Embodiments of the present invention provide a full parallax autostereoscopic display system that overcomes or at least partially solves the above-described problems
Embodiments of the present invention provide a full parallax autostereoscopic display system, the autostereoscopic display system comprising: the device comprises a display source, an optical collimation module, a refraction module and a diffusion structure; wherein,
the display source comprises a plurality of pixel points, the optical collimation module comprises a plurality of optical collimation units, the refraction module comprises a plurality of refraction units, and the pixel points, the optical collimation units and the refraction units are arranged in one-to-one correspondence;
the optical collimation unit comprises an aperture stop and a light collimation structure, the aperture stop is a cavity structure, the light collimation structure is a positive focal power lens structure with curvature in the horizontal direction and the vertical direction, the light collimation structure is nested in the cavity of the aperture stop, and the display source is arranged at the focal plane of the light collimation structure;
the refraction unit is an optical structure which has a deflection effect on light rays in the horizontal direction and the vertical direction and does not change the light beam convergence;
the diffusion structure is an optical structure having a diffusion effect in the horizontal direction and the vertical direction on the light.
Further, the diameter of the inscribed circle of the inner frame of the stop ring in the optical collimating unit is larger than the diameter of the circumscribed circle of the corresponding pixel point and smaller than the distance between the center of the corresponding pixel point and the center of the adjacent pixel point.
Further, the light collimating structure in the optical collimating unit is a positive power traditional lens, a positive power linear Fresnel lens, a positive power lens structure formed by compounding a plurality of traditional lenses or a positive power lens structure formed by compounding a plurality of linear Fresnel lenses.
Further, the refraction unit is a prism, a reflector, a composite structure formed by a plurality of prisms or a composite structure formed by a plurality of reflectors.
Further, the diffusion structure is a directional diffusion film.
Further, the autostereoscopic display system comprises: the device comprises a display source, an optical collimation module, a refraction module and a diffusion structure; wherein,
the display source comprises a plurality of pixel points, the optical collimation module comprises a plurality of optical collimation units, the refraction module comprises a plurality of refraction units, and the pixel points, the optical collimation units and the refraction units are arranged in one-to-one correspondence;
the optical collimation unit comprises an aperture stop and a light collimation structure, the aperture stop is a cavity structure, the light collimation structure is a positive focal power lens structure with curvature in the horizontal direction and the vertical direction, the light collimation structure is nested in the cavity of the aperture stop, and the display source is arranged at the focal plane of the light collimation structure; the diameter of the inscribed circle of the inner frame of the light blocking ring in the optical collimation unit is larger than the diameter of the circumscribed circle of the corresponding pixel point and smaller than the distance between the center of the corresponding pixel point and the center of the adjacent pixel point; the light collimation structure is a positive focal power traditional lens, a positive focal power linear Fresnel lens, a positive focal power lens structure formed by compounding a plurality of traditional lenses or a positive focal power lens structure formed by compounding a plurality of linear Fresnel lenses;
the refraction unit is an optical structure which has a horizontal deflection effect on light and does not change the light beam convergence; the refraction unit is a prism, a reflector, a composite structure formed by a plurality of prisms or a composite structure formed by a plurality of reflectors;
the horizontal diffusion structure is an optical structure with a horizontal diffusion effect on light rays; the diffusion structure is a directional diffusion film.
The embodiment of the invention provides a full parallax free three-dimensional display system, which comprises a display source, an optical collimation module, a refraction module and a diffusion structure; the display source comprises a plurality of pixel points, the optical collimation module comprises a plurality of optical collimation units, the refraction module comprises a plurality of refraction units, and the pixel points, the optical collimation units and the refraction units are arranged in one-to-one correspondence; the optical collimation unit comprises an aperture stop and a light collimation structure, the aperture stop is a cavity structure, the light collimation structure is a positive focal power lens structure with curvature in the horizontal direction and the vertical direction, the light collimation structure is nested in the cavity of the aperture stop, and the display source is arranged at the focal plane of the light collimation structure; the refraction unit is an optical structure which has a deflection effect on light rays in the horizontal direction and the vertical direction and does not change the light beam convergence; the diffusion structure is an optical structure having a diffusion effect in the horizontal direction and the vertical direction on the light. The light emitted by the display source is processed by the collimation module, the refraction module and the diffusion structure to realize free stereoscopic display, and the display has high imaging resolution, large visual angle, small aberration influence and good viewing experience.
Drawings
Fig. 1 is a schematic structural diagram of a full parallax autostereoscopic display system according to an embodiment of the present invention;
FIG. 2 is a schematic diagram of a display source in an embodiment of the invention;
FIG. 3 is a cross-sectional view of a light barrier in an embodiment of the invention;
FIG. 4 is a schematic diagram of a conventional lens with four positive powers according to an embodiment of the present invention;
FIG. 5 is a schematic diagram of a positive power lens structure according to an embodiment of the present invention;
FIG. 6 is a schematic diagram of two positive power linear Fresnel lenses and three positive power lens structures according to an embodiment of the present invention;
fig. 7 is a schematic view of an optical path in a refraction unit according to an embodiment of the invention.
Detailed Description
For the purpose of making the objects, technical solutions and advantages of the embodiments of the present invention more apparent, the technical solutions of the embodiments of the present invention will be clearly described below with reference to the accompanying drawings in the embodiments of the present invention, and it is apparent that the described embodiments are some embodiments of the present invention, but not all embodiments of the present invention. All other embodiments, which can be made by those skilled in the art based on the embodiments of the invention without making any inventive effort, are intended to be within the scope of the invention.
Fig. 1 is a schematic structural diagram of a full parallax autostereoscopic display system according to an embodiment of the present invention, and as shown in the drawings, the autostereoscopic display system includes: the display source E, the optical collimation module M1, the refraction module M2 and the diffusion structure K1. Wherein:
the display source E comprises a plurality of pixel points, the optical collimation module M1 comprises a plurality of optical collimation units, the refraction module M2 comprises a plurality of refraction units, and the pixel points, the optical collimation units and the refraction units are arranged in one-to-one correspondence;
the optical collimation unit comprises an aperture stop and a light collimation structure, the aperture stop is a cavity structure, the light collimation structure is a positive focal power lens structure with curvature in the horizontal direction and the vertical direction, the light collimation structure is nested in the cavity of the light blocking ring, and the display source is arranged at the focal plane of the light collimation structure;
the refraction unit is an optical structure which has a deflection effect on light rays in the horizontal direction and the vertical direction and does not change the light beam convergence;
the diffusion structure is an optical structure having a diffusion effect in the horizontal direction and the vertical direction on the light.
The light emitted by any pixel point sequentially passes through the corresponding optical collimation unit and the corresponding refraction unit. D1 is the distance between the display source E and the light collimating module M1, D2 is the distance between the light collimating module M1 and the refraction module M2, and D3 is the distance between the refraction module M2 and the diffusion structure K1, and the range thereof is: d3 is more than or equal to 5000mm and more than 0mm. Preferably, E, M and M2 are disposed in close proximity, i.e. D1, D2 are both 0.
The display source E is capable of providing visual content information to a viewer, and may be a self-luminous display source or a display source in which backlight is diffuse light. The diffuse light is scattered, disordered, as shown in fig. 2. May be a Liquid Crystal Display (LCD), LED display, OLED display, quantum dot display, or the like. It is used to display static, dynamic and any content that can be displayed or viewed. Static content refers to content that is displayed that does not change over time, including but not limited to pictures, still images, static text, and chart data. Dynamic content refers to content that changes over time and includes, but is not limited to, recorded video, real-time video, changing images, dynamic text and graphic data, and the like. Its surface has dense pixels. There is a space between the pixel points. The shape of the pixel point can be any shape such as rectangle, circle, parallelogram, etc., therefore, the size of the pixel point is represented by the dimension P of the diameter of the circumscribing circle of each optical lens, and the variation range is 5mm more than or equal to P > 0mm. The shapes of the pixel points may be all the same, may be partially the same, or may be all different.
The aperture in the optical collimating unit is of a three-dimensional structure, the material of the aperture can be any opaque material, the cavity on the aperture is a light hole, the aperture has a constraint function on diffuse light emitted by corresponding pixel points, and after the light enters from one end of the light hole of the aperture, the light exits from the other end of the light hole under the constraint of the aperture, so that the light is blocked from entering other adjacent optical collimating units. Preferably, as shown in fig. 3, the light blocking ring includes an outer frame, an inner frame and a light transmitting hole, the cross section of the light transmitting hole can be rectangular, and the shape of the outer ring can be selected according to practical requirements, for example, the light blocking ring can be circular, elliptic, polygonal and the like.
The light collimation structure is nested in the light passing hole of the stop ring, the light collimation structure is a positive focal power lens structure with curvature in the horizontal direction and the vertical direction, the display source is arranged at the focal plane of the light collimation structure, and after the light emitted by the corresponding pixel point passes through the light collimation structure, the horizontal direction and the vertical direction are both parallel light emergent. The light collimation structure collimates light emitted by the pixel points in the horizontal direction and the vertical direction.
The refraction mold units are used for deflecting parallel light beams of the corresponding optical collimation units in the horizontal direction and the vertical direction, and each refraction mold unit deflects and exits at a specific angle, so that viewpoints are formed in the horizontal direction and the vertical direction in space.
The diffusion structure K1 is a structure that diffuses in the horizontal direction and the vertical direction, and functions to diffuse the light from the refraction module M2 in the horizontal direction and the vertical direction, thereby increasing the viewing ranges in the horizontal direction and the vertical direction.
Specifically, when the auto-stereoscopic display works, light emitted by the display source E enters the optical collimation module M1, the light enters the refraction module M2 after being collimated in the horizontal direction and the vertical direction in the optical collimation module M1, the light forms a view point in the horizontal direction and the vertical direction after being refracted in the horizontal direction and the vertical direction in the refraction module M2, and then the auto-stereoscopic display is realized after being diffused in the horizontal direction and the vertical direction through the diffusion structure K1.
The embodiment of the invention provides a full parallax auto-stereoscopic display system, which comprises a display source, an optical collimation module, a refraction module and a diffusion structure; the display source comprises a plurality of pixel points, the optical collimation module comprises a plurality of optical collimation units, the refraction module comprises a plurality of refraction units, and the pixel points, the optical collimation units and the refraction units are arranged in one-to-one correspondence; the optical collimation unit comprises an aperture stop and a light collimation structure, the aperture stop is a cavity structure, the light collimation structure is a positive focal power lens structure with curvature in the horizontal direction and the vertical direction, the light collimation structure is nested in the cavity of the aperture stop, and the display source is arranged at the focal plane of the light collimation structure; the refraction unit is an optical structure which has a deflection effect on light rays in the horizontal direction and the vertical direction and does not change the light beam convergence; the diffusion structure is an optical structure having a diffusion effect in the horizontal direction and the vertical direction on the light. The light emitted by the display source is processed by the collimation module, the refraction module and the diffusion structure to realize free stereoscopic display, and the display has high imaging resolution, large visual angle, small aberration influence and good viewing experience.
In the above embodiment, the diameter of the inscribed circle of the inner frame of the light-blocking ring in the optical collimating unit is larger than the diameter of the circumscribed circle of the corresponding pixel, and smaller than the distance between the center of the corresponding pixel and the center of the adjacent pixel.
Specifically, in order to prevent light of the display source pixel from entering other aperture stops, it is required that the inner frame of each aperture stop completely encloses the corresponding display source light emitting point, and the diameter of the inscribed circle of the inner frame of the aperture stop is larger than the diameter of the circumscribed circle of the corresponding pixel and smaller than the distance between the center of the corresponding pixel and the center of the adjacent pixel. The thickness of the stop is determined according to the actual situation.
In the above embodiment, the light collimating structure in the optical collimating unit is a positive power conventional lens, a positive power linear fresnel lens, a positive power lens structure composed of a plurality of conventional lenses, or a positive power lens structure composed of a plurality of linear fresnel lenses.
Specifically, the light collimating structure may be a conventional lens of positive optical power, such as a plano-convex lens, a biconvex lens, a convex screen lens, a positive meniscus lens, etc., as shown in fig. 4, wherein R1, R2 are the curvatures of both faces thereof, respectively, l E The edge thickness of the optical lens is as follows: h is greater than or equal to l E > 0mm. The light collimating structure may be a positive power lens structure composed of a plurality of conventional lenses, for example, as shown in fig. 5, a positive power lens structure composed of a plano-convex lens, a biconcave lens and a biconvex lens, or a light collimating structure, i E The edge thickness of the positive focal power lens structure is as follows: h is greater than or equal to l E > 0mm. The shape and the size of the positive focal power lens structure are completely the same as those of the inner frame of the stop ring so as to ensure that the light collimating structure can be nested in the light blocking ring. The light collimating structure may also be a positive power linear fresnel lens or be composed of multiple linear fresnel lensesAs shown in fig. 6, for example, the thickness of the linear fresnel lens or the composite structure is d, and the range of values is: h > d > 0mm. The range of the annular distance of the linear Fresnel lens is 0.001 mm-1 mm. In practice, the tooth depth, the inclination angle and the draft angle of each tooth of the linear Fresnel lens can be adjusted according to the actual production process and requirements under the condition of ensuring that the optical power is unchanged. Each tooth of the linear fresnel lens may be either a straight triangular sawtooth or an arc equivalent to its corresponding lens.
It should be noted that the material used for each optical lens may be various glass materials (such as crown glass, flint glass, dense crown glass, dense flint glass, or LA-based glass), and may be plastic resin materials (such as PMMA, PC, COC, POLYCARB).
In the above-described embodiments, the refractive unit is a prism, a mirror that has a horizontal direction deflecting effect on light without changing the beam condensing and scattering properties, a composite structure composed of a plurality of prisms, or a composite structure composed of a plurality of mirrors.
Specifically, the refraction module may be a prism, a reflector, or the like, which deflects light and does not change the beam dispersibility. As shown in fig. 7, H represents the height of the refraction module, and the range of values is: h is more than or equal to 0.5mm and more than or equal to 0mm. W represents the width of the refraction module, and the size of the W is equal to the diameter of an inscribed circle of the inner frame of the stop aperture. By controlling the inclination angle theta and the placement posture of the prism and the reflecting mirror, the light beam can realize deflection with the angle alpha, and the value range of alpha is 90 degrees larger than alpha > -90 degrees. The refraction module can also be a composite structure formed by a plurality of prisms, a composite structure formed by a plurality of reflecting mirrors and a composite structure formed by the prisms and the reflecting mirrors.
The prism may be made of various glass materials (such as crown glass, flint glass, dense crown glass, dense flint glass or LA glass, etc.), and may be made of plastic resin materials (such as PMMA, PC, COC, POLYCARB, etc.). The reflecting mirror is a plane mirror with reflecting capability, such as a glass reflecting mirror, a resin reflecting mirror, a smooth metal surface and other plane elements with reflecting capability, and the thickness of the reflecting mirror is selected according to practical situations.
An autostereoscopic display system, the autostereoscopic display system comprising: the device comprises a display source, an optical collimation module, a refraction module and a diffusion structure; wherein,
the display source comprises a plurality of pixel points, the optical collimation module comprises a plurality of optical collimation units, the refraction module comprises a plurality of refraction units, and the pixel points, the optical collimation units and the refraction units are arranged in one-to-one correspondence;
the optical collimation unit comprises an aperture stop and a light collimation structure, the aperture stop is a cavity structure, the light collimation structure is a positive focal power lens structure with curvature only in the horizontal direction, the light collimation structure is nested in the cavity of the light blocking ring, and the display source is arranged at the focal plane of the light collimation structure; the diameter of an inscribed circle of an inner frame of the light blocking ring in the optical collimation unit is larger than the diameter of an circumscribed circle of a corresponding pixel point and smaller than the distance between the center of the corresponding pixel point and the center of an adjacent pixel point; the light collimation structure is a positive focal power traditional lens, a positive focal power linear Fresnel lens, a positive focal power lens structure formed by compounding a plurality of traditional lenses or a positive focal power lens structure formed by compounding a plurality of linear Fresnel lenses;
the refraction unit is an optical structure which has a horizontal deflection effect on light and does not change the light beam convergence and scattering property; the refraction unit is a prism, a reflector, a composite structure formed by a plurality of prisms or a composite structure formed by a plurality of reflectors;
the horizontal diffusion structure is an optical structure with a horizontal diffusion effect on light rays; the horizontal diffusion structure is a cylindrical lens array or a directional diffusion film.
Finally, it should be noted that: the above embodiments are only for illustrating the technical solution of the present invention, and are not limiting; although the invention has been described in detail with reference to the foregoing embodiments, it will be understood by those of ordinary skill in the art that: the technical scheme described in the foregoing embodiments can be modified or some technical features thereof can be replaced by equivalents; such modifications and substitutions do not depart from the spirit and scope of the technical solutions of the embodiments of the present invention.
Claims (1)
1. A full parallax autostereoscopic display system, the autostereoscopic display system comprising: the device comprises a display source, an optical collimation module, a refraction module and a diffusion structure; wherein,
the display source comprises a plurality of pixel points, the optical collimation module comprises a plurality of optical collimation units, the refraction module comprises a plurality of refraction units, and the pixel points, the optical collimation units and the refraction units are arranged in one-to-one correspondence;
the optical collimation unit comprises an aperture stop and a light collimation structure, the aperture stop is a cavity structure, the light collimation structure is a positive focal power lens structure with curvature in the horizontal direction and the vertical direction, the light collimation structure is nested in the cavity of the aperture stop, and the display source is arranged at the focal plane of the light collimation structure; the diameter of the inscribed circle of the inner frame of the light blocking ring in the optical collimation unit is larger than the diameter of the circumscribed circle of the corresponding pixel point and smaller than the distance between the center of the corresponding pixel point and the center of the adjacent pixel point; the light collimation structure is a positive focal power traditional lens, a positive focal power linear Fresnel lens, a positive focal power lens structure formed by compounding a plurality of traditional lenses or a positive focal power lens structure formed by compounding a plurality of linear Fresnel lenses; the positive power conventional lens includes at least one of: plano-convex lenses, biconvex lenses, convex screen lenses, and positive meniscus lenses;
the refraction unit is an optical structure which has a horizontal deflection effect on light and does not change the light beam convergence; the refraction unit is a prism, a reflector, a composite structure formed by a plurality of prisms or a composite structure formed by a plurality of reflectors;
the horizontal diffusion structure is an optical structure with a horizontal diffusion effect on light rays; the diffusion structure is a directional diffusion film.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810936864.2A CN108761819B (en) | 2018-08-16 | 2018-08-16 | Full parallax free three-dimensional display system |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201810936864.2A CN108761819B (en) | 2018-08-16 | 2018-08-16 | Full parallax free three-dimensional display system |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| CN108761819A CN108761819A (en) | 2018-11-06 |
| CN108761819B true CN108761819B (en) | 2023-12-29 |
Family
ID=63966364
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201810936864.2A Active CN108761819B (en) | 2018-08-16 | 2018-08-16 | Full parallax free three-dimensional display system |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN108761819B (en) |
Families Citing this family (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN110913201B (en) * | 2019-10-22 | 2021-03-30 | 北京邮电大学 | Light field display structure and synthetic image coding method |
| CN111158162B (en) * | 2020-01-06 | 2022-08-30 | 亿信科技发展有限公司 | Super multi-viewpoint three-dimensional display device and system |
| CN111929914B (en) * | 2020-08-07 | 2022-02-18 | 亿信科技发展有限公司 | One-way even light beam expanding screen and three-dimensional display device |
| CN116088193A (en) * | 2022-11-07 | 2023-05-09 | 北京京东方技术开发有限公司 | Display device |
Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102566110A (en) * | 2010-12-13 | 2012-07-11 | 财团法人工业技术研究院 | Display with dimension switching function |
| JP2013160808A (en) * | 2012-02-01 | 2013-08-19 | Nippon Hoso Kyokai <Nhk> | Three-dimensional picture imaging device |
| JP2016035513A (en) * | 2014-08-04 | 2016-03-17 | 富士通株式会社 | Display device and display control method |
| CN107632404A (en) * | 2017-10-13 | 2018-01-26 | 北京眸合科技有限公司 | Air suspension display system |
| CN107817609A (en) * | 2017-11-29 | 2018-03-20 | 北京眸合科技有限公司 | A kind of auto-stereo display system |
| CN208752317U (en) * | 2018-08-16 | 2019-04-16 | 深圳市眸合科技有限公司 | A kind of full parallax auto-stereo display system |
-
2018
- 2018-08-16 CN CN201810936864.2A patent/CN108761819B/en active Active
Patent Citations (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| CN102566110A (en) * | 2010-12-13 | 2012-07-11 | 财团法人工业技术研究院 | Display with dimension switching function |
| JP2013160808A (en) * | 2012-02-01 | 2013-08-19 | Nippon Hoso Kyokai <Nhk> | Three-dimensional picture imaging device |
| JP2016035513A (en) * | 2014-08-04 | 2016-03-17 | 富士通株式会社 | Display device and display control method |
| CN107632404A (en) * | 2017-10-13 | 2018-01-26 | 北京眸合科技有限公司 | Air suspension display system |
| CN107817609A (en) * | 2017-11-29 | 2018-03-20 | 北京眸合科技有限公司 | A kind of auto-stereo display system |
| CN208752317U (en) * | 2018-08-16 | 2019-04-16 | 深圳市眸合科技有限公司 | A kind of full parallax auto-stereo display system |
Also Published As
| Publication number | Publication date |
|---|---|
| CN108761819A (en) | 2018-11-06 |
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| CN108761818B (en) | Free three-dimensional display system | |
| CN108761819B (en) | Full parallax free three-dimensional display system | |
| US11726325B2 (en) | Near-eye optical imaging system, near-eye display device and head-mounted display device | |
| US11016241B2 (en) | Display device and display method | |
| KR100910393B1 (en) | The real image display device with wide viewing angle | |
| US10534178B2 (en) | Display apparatuses and display methods | |
| JP6217882B1 (en) | 3D display device | |
| US9274345B2 (en) | Multiple view display | |
| CN108803053B (en) | Three-dimensional light field display system | |
| TWI608254B (en) | Image display device | |
| Yang et al. | Viewing-angle and viewing-resolution enhanced integral imaging based on time-multiplexed lens stitching | |
| JP2016500829A (en) | True 3D display with convergence angle slice | |
| CN105445833A (en) | 3D imaging grating assembly and 3D display device | |
| TW202246853A (en) | Stereoscopic image display device | |
| JP2019101115A (en) | Stereoscopic image display device | |
| CN208752319U (en) | A kind of auto-stereo display system | |
| CN108388075B (en) | Laser projection screen and laser projection system | |
| WO2023201945A1 (en) | Naked-eye 3d display optical device | |
| CN208752317U (en) | A kind of full parallax auto-stereo display system | |
| CN113985623B (en) | Three-dimensional light field display system for evenly distributing viewpoints | |
| CN115236872A (en) | Three-dimensional display system of pixel level accuse light | |
| US20210373205A1 (en) | System and method for holographic displays | |
| CN109031655B (en) | Lens unit and display device | |
| US20230359063A1 (en) | Integrated stereoscopic image display device | |
| CN108732773B (en) | Stereoscopic display device |
Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| PB01 | Publication | ||
| PB01 | Publication | ||
| SE01 | Entry into force of request for substantive examination | ||
| SE01 | Entry into force of request for substantive examination | ||
| CB02 | Change of applicant information | ||
| CB02 | Change of applicant information |
Address after: 518000 14a, building 3, No. 1, Zhongying street, Shatoujiao street, Yantian District, Shenzhen, Guangdong Applicant after: Shenzhen Huiyan Technology Co.,Ltd. Address before: 518106 floor 3, building a40, Xinwei fourth industrial zone, Jiangshi community, Gongming street, Guangming New Area, Shenzhen, Guangdong Applicant before: SHENZHEN MOUHE TECHNOLOGY Co.,Ltd. |
|
| TA01 | Transfer of patent application right | ||
| TA01 | Transfer of patent application right |
Effective date of registration: 20211116 Address after: 518000 room c615-2, Research Institute of Tsinghua University, South District, high tech Industrial Park, Yuehai street, Nanshan District, Shenzhen, Guangdong Applicant after: Shenzhen Zhenxiang Technology Co.,Ltd. Address before: 518000 14a, building 3, No. 1, Zhongying street, Shatoujiao street, Yantian District, Shenzhen, Guangdong Applicant before: Shenzhen Huiyan Technology Co.,Ltd. |
|
| GR01 | Patent grant | ||
| GR01 | Patent grant |