WO2021139204A1 - Dispositif d'affichage en trois dimensions et système - Google Patents

Dispositif d'affichage en trois dimensions et système Download PDF

Info

Publication number
WO2021139204A1
WO2021139204A1 PCT/CN2020/115172 CN2020115172W WO2021139204A1 WO 2021139204 A1 WO2021139204 A1 WO 2021139204A1 CN 2020115172 W CN2020115172 W CN 2020115172W WO 2021139204 A1 WO2021139204 A1 WO 2021139204A1
Authority
WO
WIPO (PCT)
Prior art keywords
light
dimensional display
display device
mirror
turntable
Prior art date
Application number
PCT/CN2020/115172
Other languages
English (en)
Chinese (zh)
Inventor
卢增祥
Original Assignee
亿信科技发展有限公司
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by 亿信科技发展有限公司 filed Critical 亿信科技发展有限公司
Publication of WO2021139204A1 publication Critical patent/WO2021139204A1/fr

Links

Images

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

Definitions

  • This application relates to three-dimensional display technology, for example, to a three-dimensional display device and system.
  • naked-eye 3D display is mainly realized by using the principles of holography, lenticular grating, volumetric 3D, integrated imaging, etc.
  • holographic technology is Hungarian scientist Dennis Gabor invented a three-dimensional display technology that uses the interference and diffraction principles of coherent light to record and reproduce three-dimensional images of objects.
  • holographic technology is the most realistic 3D display technology, the structure of the coherent light source required for its display is more complex and due to the data Real-time display cannot be realized due to huge amount.
  • the lenticular lens display uses the refraction effect of the cylindrical lens to separate the left and right eye images, and uses the parallax to produce a 3D visual effect.
  • this display method has a small number of viewpoints, and usually the viewpoints are not continuous when viewed, and the visual effect is not perfect.
  • Volumetric 3D technology uses high-speed rotating transparent projection screens and the persistence effect of human eyes to combine the 2D image sequences projected on the projection screen by the projector in space to achieve 3D display.
  • the system preparation is more difficult and costly. Higher, it is more difficult to achieve large-scale and high-resolution three-dimensional display.
  • the integrated imaging technology is a naked eye 3D display technology that uses a microlens array arranged periodically in a plane to record and reproduce true three-dimensional stereoscopic images. However, it has problems such as a small viewing angle and low depth resolution.
  • SMV super multi-view stereoscopic displays
  • This technology increases the number of viewpoints as much as possible to provide smooth stereoscopic parallax images.
  • the resolution of the projection device or the flat panel display device in the 3D display greatly limits the spatial resolution of the 3D display.
  • the embodiments of the present application provide a three-dimensional display device and system to increase the number of viewpoints of three-dimensional display and improve the spatial resolution.
  • an embodiment of the present application provides a three-dimensional display device, including:
  • a turntable the turntable is configured to rotate around a central axis of the turntable, the central axis extending in a vertical direction;
  • a light pole fixed on the turntable is configured to independently emit light in at least two directions in a horizontal plane to form at least two viewpoints;
  • the light pole includes a light board and a unidirectional scattering screen;
  • the one-way scattering screen is located on the periphery of the light board on a side away from the central axis, and is located on the light exiting path of the light board.
  • the unidirectional scattering screen includes a first lenticular grating, and the first lenticular grating includes a plurality of first cylindrical mirrors extending along a first direction, and the first direction is the same as the vertical direction. cross.
  • the unidirectional scattering screen further includes a Fresnel cylinder, the Fresnel cylinder is located between the lamp board and the first cylinder grating, and the Fresnel cylinder is negative
  • the focal length cylindrical lens, and the axial direction of the Fresnel cylindrical lens is the vertical direction.
  • the light board includes a plurality of light-emitting components
  • the unidirectional scattering screen also includes a light homogenizing structure, and the light homogenizing structure is located between the light plate and the first lenticular grating.
  • the distance between the light pole and the central axis is greater than zero.
  • the light pole includes a first light pole and a second light pole, and the first light pole and the second light pole are symmetrically arranged about the central axis.
  • the unidirectional scattering screen is a curved screen.
  • the first direction is not perpendicular to the vertical direction
  • the three-dimensional display device further includes an upper mirror surface and a lower mirror surface; along the vertical direction, the first lenticular lens is located between the upper mirror surface and the lower mirror surface.
  • an embodiment of the present application provides a three-dimensional display device, including:
  • a turntable the turntable is configured to rotate around a central axis of the turntable, the central axis extending in a vertical direction;
  • the light pole is fixed on the turntable; the light pole is configured to independently emit light in at least two directions in a horizontal plane to form at least two viewpoints; the light pole includes a light board and a unidirectional scattering screen;
  • the one-way scattering screen is located on the inner side of the light panel and on the light exiting path of the light panel.
  • multiple light poles there are multiple one-way scattering screens, and the light poles and the one-way scattering screens are arranged in one-to-one correspondence.
  • an embodiment of the present application provides a three-dimensional display device, including:
  • the light pole is fixed on the fixed platform; the light pole independently emits light in at least two directions in the horizontal plane to form at least two viewpoints; the light pole includes a light board and a unidirectional scattering screen;
  • the one-way scattering screen is located on the inner side of the light panel and on the light exiting path of the light panel.
  • an embodiment of the present application provides a three-dimensional display system, which includes at least two three-dimensional display devices as described in the first aspect.
  • the first reflector corresponds to the three-dimensional display device one-to-one; the first end of the second reflector faces the same
  • the second mirror is the closest to the first mirror, the second end of the second mirror faces the gap between the two adjacent three-dimensional display devices, and the first mirror is connected to the
  • the second mirror is located on the same side of the three-dimensional display device; the first end of the third mirror faces the first mirror, and the second end of the third mirror faces the second mirror.
  • the connecting line between the centers of two adjacent three-dimensional display devices is a central connecting line, and the first reflecting mirror is parallel to the central connecting line;
  • the centers of all the three-dimensional display devices are located on the same straight line.
  • the connecting line between the centers of two adjacent three-dimensional display devices is a central connecting line, and the included angle between the first reflector and the central connecting line is greater than 0;
  • the centers of all the three-dimensional display devices are located on the same curve, and the first mirror and the second mirror are away from the center of curvature at any position of the curve.
  • the connecting line between the centers of two adjacent three-dimensional display devices is a central connecting line, and the included angle between the first reflector and the central connecting line is greater than 0;
  • the centers of all the three-dimensional display devices are located on the same curve, and the first mirror and the second mirror face one side of the center of curvature at any position of the curve.
  • FIG. 1 is a schematic structural diagram of a super multi-viewpoint three-dimensional display device provided by an embodiment of the application;
  • Figure 2 is a schematic diagram of the unidirectional scattering screen expanding the light emitted by the light board in the vertical direction;
  • FIG. 3 is a top view of a partial structure of another super-multi-viewpoint three-dimensional display device provided by an embodiment of the application;
  • FIG. 4 is a schematic diagram of a Fresnel cylindrical lens provided by an embodiment of the application expanding light in the horizontal direction;
  • FIG. 5 is a schematic diagram of the uniform light effect of a uniform light structure provided by an embodiment of the present application.
  • Fig. 6 is a schematic diagram of the structure of the first lenticular grating in the unidirectional scattering screen
  • FIG. 7 is a schematic diagram of the positions of the first light board and the second light board in FIG. 1;
  • FIG. 8 is a partial structural side view of another super-multi-viewpoint three-dimensional display device provided by an embodiment of the application.
  • Fig. 9 is a front view of the first lenticular grating, upper mirror surface and lower mirror surface in the unidirectional scattering screen;
  • Fig. 10 is a three-dimensional view of the first lenticular grating, the upper mirror surface and the lower mirror surface in the unidirectional scattering screen;
  • Figure 11 is a schematic diagram of light reflecting between the upper mirror surface and the lower mirror surface
  • FIG. 12 is a schematic structural diagram of a super multi-view 3D display device provided by an embodiment of the application.
  • FIG. 13 is a schematic diagram of a three-dimensional display system provided by an embodiment of the application.
  • FIG. 14 is a schematic diagram of a part of the structure of the three-dimensional display system shown in FIG. 13;
  • 15 is a schematic diagram of another three-dimensional display system provided by an embodiment of the application.
  • FIG. 16 is a schematic diagram of a part of the structure of the three-dimensional display system shown in FIG. 15;
  • FIG. 17 is a schematic diagram of another three-dimensional display system provided by an embodiment of the application.
  • FIG. 18 is a schematic diagram of a part of the structure of the three-dimensional display system shown in FIG. 17;
  • FIG. 19 is a schematic diagram of a trajectory circle equivalent to an equivalent circle provided by an embodiment of the application.
  • FIG. 1 is a schematic structural diagram of a super multi-viewpoint 3D display device provided by an embodiment of the application.
  • the super multi-viewpoint 3D display device includes a turntable 10 and at least one light pole 70.
  • the light pole 70 includes a light board 20 and a unidirectional diffusion screen 30.
  • one light panel 20 corresponds to one one-way diffusion screen 30, and the light panels 20 and the one-way diffusion screen 30 are arranged in one-to-one correspondence.
  • the turntable 10 rotates around a central axis L1 of the turntable 10, and the central axis L1 extends in the vertical direction.
  • At least one light pole 70 is fixed on the turntable 10 for luminous display.
  • the light pole 70 independently emits light in at least two directions in the horizontal plane to form at least two viewpoints. That is, the light pole 70 can independently emit light at at least two different angles in the horizontal direction to form at least two viewpoints in the horizontal direction.
  • the unidirectional scattering screen 30 is located at the periphery of the light board 20 away from the central axis L1 and is located on the light exiting path of the light board 20.
  • the one-way diffusion screen 30 is used to expand the light emitted by the lamp panel 20 in a direction perpendicular to the extension direction of the first cylindrical mirror.
  • the first cylindrical mirror in the one-way diffusion screen 30 extends in the horizontal direction, and the one-way diffusion screen 30 is used to expand the light emitted by the lamp panel 20 in the vertical direction.
  • Figure 2 is a schematic diagram of the unidirectional scattering screen expanding the light emitted by the lamp panel in the vertical direction.
  • the direction of the optical axis is the Z direction
  • the extension direction of the central axis L1 is parallel to the Y direction.
  • 30 expands the light emitted by the light board 20 in the Y direction, thereby expanding the visible viewing angle of the human eye Eye in the vertical direction (ie, the Y direction).
  • the light panel 20 and the unidirectional diffusion screen 30 are arranged in one-to-one correspondence, and the distance between the light panel 20 and the unidirectional diffusion screen 30 is fixed, and the light panel 20 and the unidirectional diffusion screen 30 are relatively fixed.
  • the light pole is located on the turntable, so that the turntable can be rotated and combined with the persistence effect of human vision by means of mechanical scanning to display pixels (the light-emitting components in the light pole include Multiple display pixels) time multiplexing in exchange for an increase in spatial resolution, thereby increasing the number of viewpoints of three-dimensional display and increasing the spatial resolution.
  • the light emitted by the lamp panel is projected onto the unidirectional scattering screen, which turns on the light on the projection unidirectional scattering screen in the vertical direction, while the horizontal direction maintains the vector nature of the original narrow beam, so that the image is projected
  • the unidirectional scattering screen expands the visible viewing angle in the vertical direction, and the image can be observed in any visible viewing angle in the vertical direction, and the image cannot be observed only at a specific viewpoint in the vertical direction.
  • the super-multi-viewpoint three-dimensional display device provided by the embodiments of the present application can achieve a large field of view, high resolution, super-multi-viewpoint real-time 3D display, and the vertical field of view can reach 160 degrees or more, and the resolution can reach retinal quality.
  • FIG. 3 is a top view of a part of the structure of another super multi-viewpoint 3D display device provided by an embodiment of the application.
  • FIG. 6 is a schematic diagram of the structure of the first lenticular grating in the unidirectional scattering screen. Referring to FIGS. 3 and 6, the unidirectional scattering The screen 30 includes a first lenticular lens 31, and the first lenticular lens 31 includes a plurality of first cylindrical lenses 311 extending in a first direction, the first direction intersecting the vertical direction.
  • the unidirectional scattering screen 30 includes a first lenticular grating 31, the extending direction of the first lenticular lens 311 in the first lenticular grating 31 is perpendicular to the vertical direction, or the first lenticular grating 31 is The extension direction of a cylindrical mirror 311 is substantially perpendicular to the vertical direction, so that the one-way scattering screen 30 can expand the light emitted by the lamp panel 20 in the extension direction perpendicular to the first cylindrical mirror 311.
  • the unidirectional scattering screen 30 may further include a slit grating or the like, for example.
  • the extending direction of the first cylindrical lens 311 in the first lenticular grating 31 When the extending direction of the first cylindrical lens 311 in the first lenticular grating 31 is approximately perpendicular to the vertical direction, the extending direction of the first cylindrical lens 311 has some deflection relative to the horizontal direction.
  • the deflection angle is determined by the maximum viewing distance and the height of the screen. (That is, the height of the light board 20), the distance between the eyes of a person is jointly determined.
  • the included angle between the first direction and the vertical direction is greater than or equal to 85° and less than or equal to 90°.
  • Fig. 4 is a schematic diagram of a Fresnel cylindrical lens expanding light in the horizontal direction according to an embodiment of the application.
  • the unidirectional scattering screen 30 also includes a Fresnel cylindrical lens 32.
  • the mirror 32 is located between the light board 20 and the first lenticular grating 31.
  • the Fresnel cylinder 32 is a negative focal length cylinder, and the axial direction of the Fresnel cylinder 32 is a vertical direction.
  • the Fresnel lens 32 can expand the light emitted by the lamp panel 20 in the horizontal direction (ie, the X direction) to increase the visible viewing angle in the horizontal direction.
  • the human eyes ie, human left and right eyes
  • the expansion of the Fresnel cylinder 32 to the light in the horizontal direction is the expansion of the entire image displayed on the unidirectional scattering screen 30.
  • the viewing angle formed by two adjacent display pixels or two display pixels separated by N display pixels in the horizontal direction is very small, and they are respectively visible to the left and right eyes, thereby forming a large number of pixels in the horizontal direction.
  • N is a positive integer.
  • the Fresnel cylinder 32 may be a Fresnel concave mirror or a Fresnel convex mirror.
  • Fig. 5 is a schematic diagram of the homogenization effect of a homogenization structure provided by an embodiment of the application.
  • the light board 20 includes a plurality of light-emitting parts 21 (the light-emitting part 21 includes a plurality of display pixels).
  • the diffuser screen 30 further includes a light homogenization structure 33, and the light homogenization structure 33 is located between the light plate 20 and the first lenticular grating 31.
  • the lamp panel 20 includes a plurality of light-emitting components 21, there is a problem of splicing the projected images of the adjacent light-emitting components 21.
  • the unidirectional scattering screen 30 also includes a uniform light structure 33.
  • the uniform light structure 33 makes the brightness of the spliced part uniform.
  • the imaging quality of the super-multi-viewpoint three-dimensional display device is improved. It should be noted that the number of light-emitting components 21 is exemplarily shown in FIG. 1.
  • the light-emitting component 21 scans and displays the image in the vertical direction (Y direction) and needs to be spliced. If there is no uniform light structure 33, the display image brightness It will be uneven, so the unidirectional scattering screen 30 also includes a uniform light structure 33, as shown in FIG. 5, the image brightness is independent of the direction of the incident light in the vertical direction.
  • the uniform light structure 33 may be located between the Fresnel lenticular lens 32 and the first lenticular grating 31.
  • the light homogenization structure 33 can also be arranged between the Fresnel lenticular lens 32 and the light board 20, or the light homogenization structure 33 can be arranged on the side of the first lenticular grating 31 away from the light board 20. .
  • the first lenticular grating 31, the Fresnel cylindrical lens 32 and the homogenizing structure 33 are tightly combined, and the first lenticular grating 31, the Fresnel cylindrical lens 32 and the homogenizing structure 33 are There can be no gap between any two.
  • the light emitting component 21 may be a vector pixel or a high frame rate micro projector.
  • Vector pixels refer to the use of optical imaging devices and light sources with bright, small, and fast response characteristics such as MicroLed, lasers, etc., combined with chip driver programs to realize that the intensity of the display pixels to different angles of light can be controlled separately, so that each display Pixels can be individually lit, individually addressed, and individually controlled light-emitting elements. That is, each display pixel in the vector pixel has vector directivity, so as to achieve high-precision, wide viewing area, and independent multi-directional projection.
  • the light board 20 further includes a driving circuit 22, and the driving circuit 22 is electrically connected to the light-emitting component 21 for providing a driving voltage or a driving current for the light-emitting component 21.
  • the distance between the light pole 70 and the central axis L1 is greater than zero.
  • the light pole 70 is not at the center of rotation of the turntable 10.
  • the area of the light pole 70 is smaller than that of the turntable 10.
  • At least one light pole 70 includes a first light pole 71 and a second light pole 72, and the first light pole 71 and the second light pole 72 are symmetrically arranged about the central axis L1.
  • the super-multi-view 3D display device includes two light poles 70.
  • the rotation speed of the turntable 10 is reduced by half under the same scanning frequency, which improves The system stability of the super multi-view 3D display device is improved; on the other hand, compared with the solution including at least three light poles 70, the provision of two light poles 70 reduces the cost of the super multi-view 3D display device.
  • the first light board 71 includes a first light board 201
  • the second light pole 72 includes a second light board 202.
  • FIG. 7 is a schematic diagram of the positions of the first light board and the second light board in FIG. 1.
  • the light board 20 includes a plurality of light-emitting components 21.
  • the light-emitting components 21 on the first light board 201 and the light-emitting components 21 on the second light board 202 are arranged in a staggered manner.
  • the light-emitting components 21 on the first light board 201 and the light-emitting components 21 on the second light board 202 are arranged in a staggered arrangement.
  • the requirement for the speed of the turntable 10 can be reduced, and the resolution can also be improved.
  • the light-emitting component 21 on the first light board 201 and the light-emitting component 21 on the second light board 202 may be offset by one-half of the light-emitting component 21.
  • the unidirectional scattering screen 30 is a curved screen.
  • the curved surface where the unidirectional scattering screen 30 is located is a cylindrical surface.
  • the unidirectional scattering screen 30 is a curved screen, and the curved screen has the function of expanding the viewing angle.
  • the super multi-viewpoint three-dimensional display device may further include a motor 40 and a housing 50.
  • the motor 40 is mechanically connected to the turntable 10 for driving the turntable 10 to rotate.
  • the housing 50 is located on the periphery of the light pole 70 (including the light board 20 and the one-way scattering screen 30), and is used to mechanically isolate the light pole 70 from the outside world and protect the light pole 70 from external damage.
  • the super-multi-viewpoint 3D display device provided by the embodiment of the present application may also include an eye tracking device.
  • the eye-tracking device tracks the position of the human eye.
  • the super-multi-viewpoint 3D display device only displays data from two viewing angles for each viewer, instead of Display data under all viewing angles, thereby reducing the amount of projection display information transmission and reducing the power consumption of the super-multi-viewpoint three-dimensional display device.
  • the super-multi-viewpoint three-dimensional display device provided by the embodiment of the present application may further include a gesture recognition module or a touch screen.
  • FIG. 8 is a partial structural side view of another super-multi-viewpoint three-dimensional display device provided by an embodiment of the application.
  • FIG. 9 is a front view of the first lenticular grating, upper mirror surface and lower mirror surface in the unidirectional scattering screen
  • FIG. 10 is The three-dimensional view of the first lenticular grating, the upper mirror surface and the lower mirror surface in the unidirectional scattering screen, referring to Fig. 8, Fig. 9 and Fig. 10, the first direction crosses the vertical direction (Y direction).
  • the extending direction of the first cylindrical mirror 311 is not perpendicular to the vertical direction, and the extending direction of the first cylindrical mirror 311 has a certain inclination with respect to the horizontal direction (X direction).
  • the super multi-viewpoint 3D display device further includes an upper mirror surface 41 and a lower mirror surface 42.
  • the first lenticular lens 31 is located between the upper mirror surface 41 and the lower mirror surface 42.
  • the light beam surface (the triangular area in FIG. 10) of the light emitted by the lamp panel 20 after being expanded by the unidirectional scattering screen 30 has a certain angle with the upper mirror surface 41 and the lower mirror surface 42.
  • the light emitted by the lamp panel 20 is expanded by the unidirectional scattering screen 30 to form a scan line L23, the light beam reflected by the upper mirror 41 of L23 forms a second scan line L22, and the light beam reflected by the lower mirror 42 forms the third line.
  • the scan lines L21, L21 are parallel to L22, and the three scan lines (that is, L21, L22, and L23) are not in a straight line, thereby increasing the resolution in the vertical direction.
  • the display pixel in the appropriate light-emitting component can be lighted to achieve the effect of expanding the field of view.
  • Fig. 11 is a schematic diagram of light reflecting between the upper and lower mirrors.
  • W1 is the light spot width of the light emitted by the light-emitting component 21 after passing through the unidirectional scattering screen 30 and reaching the Eye of the human eye
  • ⁇ indicates The angle between the center line of the light spot and the horizontal direction after the light emitted by the light-emitting component 21 passes through the unidirectional scattering screen 30, 90°- ⁇ is the inclination of the extension direction (and the horizontal direction) of the first lenticular grating 31, and
  • h1 is the person The vertical distance between the Eye Eye and the upper mirror surface 41, and h2 is the vertical distance between the Eye Eye and the lower mirror surface 42 of the human eye.
  • the distance between the viewer (the human eye) and the super multi-view 3D display device is K
  • the distance between the viewer and the super multi-view 3D display device refers to the geometric center of the viewer and the super multi-view 3D display device The distance between.
  • the divergence angle of the display pixel in the light-emitting component 21 is then It should be noted that in FIG. 11, the upper and lower mirror 41 reflects light to the left eye of the human eye as an example, and the viewing situation of the right eye is the same as the left eye.
  • the light directly emitted and the light reflected by the upper mirror 41 and the lower mirror 42 do not affect each other (in terms of interpupillary distance).
  • the interpupillary distance is the distance between the pupils of the left eye and the right eye
  • the inclination angle ⁇ shown in Fig. 11 needs to be satisfied, so that the reflection spot of the lower mirror 42 covers the left eye and the upper mirror reflection spot is the same as the direct exit The light spot does not cover the right eye.
  • W0 is the distance from the center of the light spot to the right eye when the light spot reflected by the lower mirror 42 covers the left eye after the light emitted by the display pixel passes through the unidirectional scattering screen 30.
  • the super-multi-viewpoint 3D display device shown in FIG. 1 is suitable for image display outside the super-multi-viewpoint 3D display device, for example, it can be used as a desktop sprite display device. In other embodiments, the image display can also be performed inside the super-multi-viewpoint three-dimensional display device.
  • FIG. 12 is a schematic structural diagram of a super-multi-viewpoint 3D display device provided by an embodiment of the application.
  • the super-multi-viewpoint 3D display device includes a turntable and at least one light pole 70.
  • the light pole 70 includes a light board 20 and a unidirectional diffusion screen 30.
  • the turntable rotates around the central axis of the turntable, and the central axis extends in the vertical direction.
  • At least one light pole 70 is fixed on the turntable for luminous display.
  • the light pole 70 independently emits light in at least two directions in the horizontal plane to form at least two viewpoints. That is, the light pole 70 can independently emit light at at least two different angles in the horizontal direction to form at least two viewpoints in the horizontal direction.
  • the one-way scattering screen 30 and the light board 20 are arranged in one-to-one correspondence, located on the inner side of the light board 20, and on the light exiting light path of the light board 20, and used to align the light board 20 in the direction perpendicular to the extension direction of the first cylindrical mirror 311.
  • the emitted light expands.
  • the super-multi-viewpoint three-dimensional display device may further include a viewing platform 60 on which the viewer can observe the image displayed by the light pole 70. Since the unidirectional scattering screen 30 expands the light emitted by the light pole 20 in the extending direction perpendicular to the first cylindrical mirror 311, thereby expanding the visible viewing angle of the human eye in the vertical direction. In the embodiment of the present application, the requirement for the viewing angle of the unidirectional scattering screen 30 is reduced, and the viewing angle does not need to be enlarged in the horizontal direction.
  • the light pole 70 may not be arranged on the turntable, so that the turntable drives the light pole 70 to move, and the observer is stationary. Instead, it uses the principle of relative motion and applies it to the scene where the observer moves relative to the three-dimensional display device. For example, it is installed along the subway. People in the subway can see through the window the light poles 70 along the subway. Perspective stereo image. At this time, there is relative movement between the observer and the light pole in the three-dimensional display device. Therefore, high-resolution super-multi-viewpoint display can also be realized.
  • the light pole 70 may include a light board 20 and a one-way diffusion screen 30 arranged in a one-to-one correspondence, and the distance between the light board 20 and the one-way diffusion screen 30 is fixed, that is, the light board 20 and the one-way diffusion screen 30 are relatively fixed.
  • the super-multi-viewpoint 3D display device may include: a fixed platform and at least one light pole 70. At least one light pole 70 is fixed on the fixed platform for luminous display. The light pole 70 independently emits light in at least two directions in the horizontal plane to form at least two viewpoints.
  • the light pole 70 includes a light board 20 and a unidirectional diffusion screen 30. The unidirectional scattering screen 30 is fixed on the fixed platform, located inside the light board 20 and on the light exiting path of the light board 20.
  • FIG. 13 is a schematic diagram of a three-dimensional display system provided by an embodiment of the application.
  • the three-dimensional display system includes at least two super-multi-viewpoint three-dimensional display devices.
  • the super-multi-viewpoint three-dimensional display device is suitable for image display outside the super-multi-viewpoint three-dimensional display device.
  • the three-dimensional display system further includes a first reflector 210, a second reflector 220, and a third reflector 230.
  • the first reflector 210 has a one-to-one correspondence with the super multi-viewpoint three-dimensional display device 100, and the second The first end of the reflector 220 faces the first reflector 210 closest to the second reflector 220, and the second end of the second reflector 220 faces the gap between two adjacent super-multi-view 3D display devices 100 ,
  • the first mirror 210 and the second mirror 220 are located on the same side of the super multi-view 3D display device 100.
  • the first end of the third reflecting mirror 230 faces the first reflecting mirror 210, and the second end of the third reflecting mirror 230 faces the second reflecting mirror 220.
  • the images displayed by the multiple super-multi-viewpoint 3D display devices 100 can be spliced by the first mirror 210, the second mirror 220, and the third mirror 230, so as to achieve the effect of spliced display and large-screen display. .
  • the first end of the third reflector 230 is connected to the first reflector 210, and the second end of the third reflector 230 is connected to the second reflector 220.
  • the third reflection mirror 230 and the second reflection mirror 220 are symmetrical with respect to the first reflection mirror 210, that is, the third reflection mirror 230 and the second reflection mirror 220 are symmetrically disposed on opposite sides of the first reflection mirror 210.
  • FIG. 14 is a partial structural diagram of the three-dimensional display system shown in FIG. 13, referring to FIG. 13 and FIG. 14, the center of two adjacent super-multi-viewpoint three-dimensional display devices 100 (shown as "+" in FIG. 13 and FIG. 14)
  • the connecting line is the central connecting line L3
  • the first reflecting mirror 210 is parallel to the central connecting line L3.
  • the centers of all the super multi-viewpoint 3D display devices 100 are located on the same straight line.
  • the image formed by the first super multi-view 3D display device 110 in the first mirror 210 and the second mirror 220 is the first super multi-view 3D display device image 110'.
  • the common tangent between the super multi-view 3D display device 110 and the first super multi-view 3D display device image 110 ′ is perpendicular to the first mirror 210.
  • the image formed by the second super multi-view 3D display device 120 in the first mirror 210 and the second mirror 220 is the second super multi-view 3D display device image 120', the second super multi-view 3D display device 120 and the second super multi-view 3D display device 120'
  • a common tangent of the super-multi-viewpoint three-dimensional display device image 120 ′ passes through the connection point of the first mirror 210 and the second mirror 220.
  • the included angle between the first mirror 210 and the second mirror 220 is 20.82°.
  • FIG. 15 is a schematic diagram of another three-dimensional display system provided by an embodiment of the application
  • FIG. 16 is a partial structural schematic diagram of the three-dimensional display system shown in FIG. 15.
  • the connecting line at the center of 100 is the center connecting line L3, and the included angle between the first mirror 210 and the center connecting line L3 is greater than zero. That is, the first mirror 210 is not parallel to the central connecting line L3.
  • the centers of all super-multi-viewpoint 3D display devices 100 are located on the same curve (shown by the dashed line in FIG. 15), and the first mirror 210 and the second mirror 220 are away from the center of curvature at any position of the curve.
  • the centers of all super-multi-viewpoint 3D display devices 100 are located on the same circle, the first mirror 210 and the second mirror 220 are located outside the circle, and the audience can be inside the circle Observe the image displayed by the 3D display system.
  • the included angle between the first mirror 210 and the second mirror 220 may be 21.23 degrees.
  • FIG. 17 is a schematic diagram of another three-dimensional display system provided by an embodiment of the application.
  • FIG. 18 is a schematic diagram of a partial structure of the three-dimensional display system shown in FIG. 17.
  • the connecting line at the center of 100 is the center connecting line L3, and the included angle between the first mirror 210 and the center connecting line L3 is greater than zero. That is, the first mirror 210 is not parallel to the central connecting line L3.
  • the centers of all super-multi-viewpoint 3D display devices 100 are located on the same curve (shown by the dashed line in FIG. 17), and the first mirror 210 and the second mirror 220 are located on the side facing the center of curvature at any position of the curve.
  • the centers of all super-multi-viewpoint 3D display devices 100 are located on the same circle, the first mirror 210 and the second mirror 220 are located in the circle, and the audience can observe the display of the 3D display system on the outside of the circle. image.
  • the included angle between the first mirror 210 and the second mirror 220 may be 18.98 degrees.
  • FIG. 19 is a schematic diagram of a trajectory circle equivalent to an equivalent circle provided by an embodiment of the application.
  • the splicing of multiple three-dimensional display devices is based on the emission angle of the light-emitting unit being 180 degrees.
  • the equivalent circle in Figure 13-18 (marked as the first circle 81 in Figure 19) is the equivalent emission angle of the light-emitting unit 180
  • the degree circle is smaller than the actual trajectory circle of the light-emitting unit (marked as the second circle 82 in FIG. 19).
  • Occlusion may occur during the actual rotation scan stitching. Because the vector pixel size is relatively small, it is basically transparent during scanning display, so the occlusion can be effectively avoided.
  • the light pole can be transparentized or the imaging method of the optical device can be used to avoid it. Occlude.
  • the first circle 81 may be determined by the two reverse extension lines of the second circle 82 at the actual exit angle ⁇ , and the two reverse extension lines of the exit angle ⁇ are the outer tangent lines of the first circle 81 .

Landscapes

  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Testing, Inspecting, Measuring Of Stereoscopic Televisions And Televisions (AREA)

Abstract

La présente invention concerne un dispositif d'affichage en trois dimensions (100) et un système. Le dispositif d'affichage en trois dimensions (100) comprend : un plateau tournant (10), le plateau tournant (10) étant conçu pour tourner autour de l'axe central (L1) du plateau tournant (10) et l'axe central (L1) s'étendant dans la direction verticale ; une tige de lumière (70) fixée sur le plateau tournant (10) ; la tige de lumière (70) étant conçue pour émettre des lumières indépendamment dans au moins deux directions, formant ainsi au moins deux points de vue ; la tige de lumière (70) comprenant une carte de lumière (20) et un écran de diffusion unidirectionnelle (30) ; et l'écran de diffusion unidirectionnelle (30) étant agencé à la périphérie sur le côté de la carte de lumière (20), à l'opposé de l'axe central (L1), et étant agencé sur un trajet d'éclairage de lumière de la carte de lumière (20).
PCT/CN2020/115172 2020-01-06 2020-09-15 Dispositif d'affichage en trois dimensions et système WO2021139204A1 (fr)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
CN202010009094.4 2020-01-06
CN202010009094.4A CN111158162B (zh) 2020-01-06 2020-01-06 一种超多视点三维显示装置以及系统

Publications (1)

Publication Number Publication Date
WO2021139204A1 true WO2021139204A1 (fr) 2021-07-15

Family

ID=70561296

Family Applications (1)

Application Number Title Priority Date Filing Date
PCT/CN2020/115172 WO2021139204A1 (fr) 2020-01-06 2020-09-15 Dispositif d'affichage en trois dimensions et système

Country Status (2)

Country Link
CN (1) CN111158162B (fr)
WO (1) WO2021139204A1 (fr)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024193151A1 (fr) * 2023-03-23 2024-09-26 亿信科技发展有限公司 Dispositif d'affichage tridimensionnel et système

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN111158162B (zh) * 2020-01-06 2022-08-30 亿信科技发展有限公司 一种超多视点三维显示装置以及系统
CN111899646B (zh) * 2020-08-12 2022-02-08 亿信科技发展有限公司 一种显示面板及显示装置

Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007309975A (ja) * 2006-05-16 2007-11-29 Tokyo Univ Of Agriculture & Technology 三次元画像表示方法及び三次元画像表示装置
CN101762881A (zh) * 2010-01-22 2010-06-30 浙江大学 基于俯仰多视角的全景视场三维显示装置
JP2010217384A (ja) * 2009-03-16 2010-09-30 Sony Corp スクリーン及び画像表示装置
US20130083291A1 (en) * 2011-09-29 2013-04-04 Disney Enterprises, Inc. Autostereoscopic display system with one dimensional (1d) retroreflective screen
CN203068423U (zh) * 2012-09-07 2013-07-17 芜湖晶鑫灯饰有限公司 多维反射灯具
CN104270628A (zh) * 2014-09-27 2015-01-07 杨灵芝 基于菲涅尔透镜的裸眼悬浮立体显示系统及使用方法
CN104714361A (zh) * 2014-12-02 2015-06-17 上海理鑫光学科技有限公司 一种多视点3d显示装置
CN111158162A (zh) * 2020-01-06 2020-05-15 亿信科技发展有限公司 一种超多视点三维显示装置以及系统

Family Cites Families (42)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2004040667A (ja) * 2002-07-05 2004-02-05 Kanazawa Inst Of Technology 三次元画像表示装置
JP2006133455A (ja) * 2004-11-05 2006-05-25 Matsushita Electric Ind Co Ltd 三次元画像表示装置
CN100595631C (zh) * 2008-04-18 2010-03-24 浙江大学 实现全视场空间三维显示的屏幕装置
CN101339309B (zh) * 2008-08-01 2011-04-06 浙江大学 一种可变换显示屏及其三维显示装置
JP5394108B2 (ja) * 2009-03-27 2014-01-22 日本放送協会 ３次元映像表示装置
CN101630066A (zh) * 2009-08-17 2010-01-20 浙江大学 一种基于高速投影机的全景视场三维显示装置
WO2011049025A1 (fr) * 2009-10-20 2011-04-28 シャープ株式会社 Dispositif d'affichage vidéo tridimensionnel
CN101794027A (zh) * 2010-01-26 2010-08-04 浙江大学 基于柱面光栅的前投影自体视三维显示装置
CN101819375B (zh) * 2010-04-16 2012-05-30 浙江大学 全视差三维显示装置
CN101982806A (zh) * 2010-09-17 2011-03-02 浙江大学 大尺寸空间三维影院放映光学系统及其方法
CN102116938A (zh) * 2011-03-30 2011-07-06 浙江大学 一种基于柱面会聚定向屏的全景视场三维显示装置
CN102169282B (zh) * 2011-04-19 2013-01-30 浙江大学 多视角桌面式三维显示装置
JP5699786B2 (ja) * 2011-04-28 2015-04-15 ソニー株式会社 表示装置および照明装置
CN102231044A (zh) * 2011-06-29 2011-11-02 浙江大学 基于多屏拼接的体视三维显示装置
JP2013017006A (ja) * 2011-07-04 2013-01-24 Sony Corp 表示装置
JP5852383B2 (ja) * 2011-09-26 2016-02-03 エフ・エーシステムエンジニアリング株式会社 映像表示装置
CN202794718U (zh) * 2012-09-17 2013-03-13 上海基美文化传媒股份有限公司 3d光栅显示屏
CN103713462A (zh) * 2012-10-09 2014-04-09 耿征 真三维图像显示系统及显示方法
CN103064244B (zh) * 2013-01-07 2016-04-06 浙江大学 基于高速投影机的真彩色360°三维显示装置和方法
CN103616769B (zh) * 2013-12-12 2016-06-15 北京理工大学 基于单投影机和透射式散射屏幕的周视三维显示装置
CN103616770B (zh) * 2013-12-12 2016-02-17 北京理工大学 基于多投影机和透射式散射屏幕的周视三维显示装置
CN103676449A (zh) * 2013-12-12 2014-03-26 北京理工大学 基于反射式散射屏幕的非扫描式裸眼三维显示装置
CN103631080B (zh) * 2013-12-12 2017-01-11 北京理工大学 基于单投影机和反射式散射屏幕的周视三维显示装置
CN104298065B (zh) * 2014-05-07 2017-01-25 浙江大学 基于多台高速投影机拼接的360°三维显示装置和方法
KR102225478B1 (ko) * 2014-07-02 2021-03-11 삼성디스플레이 주식회사 입체영상 표시장치
CN104714306A (zh) * 2014-12-02 2015-06-17 上海理鑫光学科技有限公司 悬浮式裸眼多视点3d显示装置
CN104536142A (zh) * 2014-12-17 2015-04-22 严俊文 一种基于负视差的裸眼悬浮立体显示系统及方法
CN105988225B (zh) * 2015-02-25 2019-04-19 台达电子工业股份有限公司 立体光场建立装置
CN104735437B (zh) * 2015-03-09 2017-06-30 南京航空航天大学 一种用于多视点三维成像系统的显示屏
CN204925515U (zh) * 2015-06-25 2015-12-30 黄舒然 柱面光栅单向散射系统
US9897891B2 (en) * 2015-06-30 2018-02-20 E Ink Corporation Multi-layered electrophoretic displays
US10104369B2 (en) * 2015-09-15 2018-10-16 Looking Glass Factory, Inc. Printed plane 3D volumetric display
CN105372824B (zh) * 2015-12-22 2017-12-29 苏州苏大维格光电科技股份有限公司 一种裸眼3d激光显示装置
CN105700162B (zh) * 2016-04-07 2018-07-17 浙江大学 基于光场扫描的全视差360°三维显示装置和方法
CN206618900U (zh) * 2017-01-25 2017-11-07 北京三星通信技术研究有限公司 头戴式显示设备
CN108761819B (zh) * 2018-08-16 2023-12-29 深圳臻像科技有限公司 一种全视差自由立体显示系统
CN109064923A (zh) * 2018-09-18 2018-12-21 杨松 显示屏、显示系统及显示系统的控制方法
CN110264892B (zh) * 2019-05-24 2021-09-24 亿信科技发展有限公司 一种环形屏的控制方法
CN110263657B (zh) * 2019-05-24 2023-04-18 亿信科技发展有限公司 一种人眼追踪方法、装置、系统、设备和存储介质
CN110264905B (zh) * 2019-05-24 2020-08-14 亿信科技发展有限公司 一种光场显示系统
CN110262050A (zh) * 2019-07-03 2019-09-20 安徽工程大学 基于柱镜光栅的超多视点的led立体显示屏装置
CN110515213B (zh) * 2019-09-02 2022-05-27 京东方科技集团股份有限公司 立体显示装置及其控制方法

Patent Citations (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007309975A (ja) * 2006-05-16 2007-11-29 Tokyo Univ Of Agriculture & Technology 三次元画像表示方法及び三次元画像表示装置
JP2010217384A (ja) * 2009-03-16 2010-09-30 Sony Corp スクリーン及び画像表示装置
CN101762881A (zh) * 2010-01-22 2010-06-30 浙江大学 基于俯仰多视角的全景视场三维显示装置
US20130083291A1 (en) * 2011-09-29 2013-04-04 Disney Enterprises, Inc. Autostereoscopic display system with one dimensional (1d) retroreflective screen
CN203068423U (zh) * 2012-09-07 2013-07-17 芜湖晶鑫灯饰有限公司 多维反射灯具
CN104270628A (zh) * 2014-09-27 2015-01-07 杨灵芝 基于菲涅尔透镜的裸眼悬浮立体显示系统及使用方法
CN104714361A (zh) * 2014-12-02 2015-06-17 上海理鑫光学科技有限公司 一种多视点3d显示装置
CN111158162A (zh) * 2020-01-06 2020-05-15 亿信科技发展有限公司 一种超多视点三维显示装置以及系统

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2024193151A1 (fr) * 2023-03-23 2024-09-26 亿信科技发展有限公司 Dispositif d'affichage tridimensionnel et système

Also Published As

Publication number Publication date
CN111158162A (zh) 2020-05-15
CN111158162B (zh) 2022-08-30

Similar Documents

Publication Publication Date Title
CN104854864B (zh) 具有横向操作模式和纵向操作模式的时间多路复用显示器
WO2021139204A1 (fr) Dispositif d'affichage en trois dimensions et système
TW571120B (en) Three-dimensional display method and its device
US9182604B2 (en) Minimized-thickness angular scanner of electromagnetic radiation
US20190007677A1 (en) Systems and Methods for Convergent Angular Slice True-3D Display
JP3151347B2 (ja) 自動立体方向性ディスプレイ装置
US20180284441A1 (en) Wide field head mounted display
US7699472B2 (en) Multi-view autostereoscopic projection system using single projection lens unit
JP3269823B2 (ja) 情報の２次元および３次元表示のための光学システム
WO2015043098A1 (fr) Système d'affichage tridimensionnel pour l'œil nu à angles de vision multiples et procédé d'affichage associé
JP3955589B2 (ja) 立体表示装置
US7154675B2 (en) Image display apparatus
WO2020237927A1 (fr) Système d'affichage de champ optique
KR20060134965A (ko) 3차원 디스플레이
JP2005513885A (ja) 立体表示装置及びシステム
CN1910937A (zh) 体显示器
CN108919503B (zh) 一种基于视角导向层的集成成像360°桌面3d显示系统
KR20060079545A (ko) 3차원 입체 동영상 디스플레이 장치
US9967554B2 (en) Multi-viewer autostereoscopic tabletop display with dynamic parallax barrier and directional backlight
Ishizuka et al. P. 48: Flat Panel Autostereoscopic Display with Wide Viewing Zone Using Time‐Division Multiplexing Backlight
JP5888742B2 (ja) 立体表示装置
CN114326129A (zh) 一种虚拟现实眼镜
CN112970247A (zh) 显示多重景深影像的系统与方法
JP2006276292A (ja) 映像表示システム
CN112335237A (zh) 显示三维图像的立体显示系统和方法

Legal Events

Date Code Title Description
121 Ep: the epo has been informed by wipo that ep was designated in this application

Ref document number: 20911811

Country of ref document: EP

Kind code of ref document: A1

NENP Non-entry into the national phase

Ref country code: DE

122 Ep: pct application non-entry in european phase

Ref document number: 20911811

Country of ref document: EP

Kind code of ref document: A1