3D display device

Abstract

This application discloses a three-dimensional display device, comprising: a first display module, including a first display light source, a first retroreflective component, and a first beam splitter connected end-to-end in sequence, wherein display light emitted from the first display light source exits through the first beam splitter to form a first suspended image; and a second display module, including a second display light source, a second retroreflective component, and a second beam splitter connected end-to-end in sequence, wherein display light emitted from the second display light source exits through the second beam splitter to form a second suspended image; wherein one end of the first beam splitter and one end of the second beam splitter are connected, and the angle between the plane of the first beam splitter and the plane of the second beam splitter is greater than 0 degrees and less than or equal to 90 degrees; the first suspended image and the second suspended image partially overlap. When viewed by the human eye, this application produces an optical illusion effect, with the first and second suspended images merging to form a three-dimensional image, thereby achieving three-dimensional display.

Description

TECHNICAL FIELD

[0001] The present application relates to the display field, and in particular to a three-dimensional display device. BACKGROUND

[0002] Under the rapid development of the 5G era, the concept of "meta universe" will be an important interactive way in the next generation of high-speed information era. VR (Virtual Reality), AR (Augmented Reality) and MR (Mixed Reality) technologies can realize virtual and real interaction through wearable devices. Display devices, as an important component of many interactive devices, have become indispensable electronic devices for communication, exchange, learning, entertainment and shopping. Among them, three-dimensional display (3D display) technology will be an important window for the next generation of display technology.

[0003] However, the current three-dimensional display technology has not yet appeared a display mode with very excellent performance in all aspects, and has not yet achieved a very perfect display effect. Three-dimensional display technology still needs to be vigorously developed. SUMMARY

[0004] The embodiments of the present application provide a three-dimensional display device and a three-dimensional display scheme to solve the technical problem that the current three-dimensional display technology has not yet appeared a display mode with very excellent performance in all aspects, and has not yet achieved a very perfect display effect.

[0005] The embodiments of the present application provide a three-dimensional display device, which comprises:

[0006] The first display module comprises a first display light source, a first retroreflective component and a first light splitting component connected in sequence, the display light emitted by the first display light source is emitted from the first light splitting component and forms a first floating image; and

[0007] The second display module comprises a second display light source, a second retroreflective component and a second light splitting component connected in sequence, the display light emitted by the second display light source is emitted from the second light splitting component and forms a second floating image.

[0008] The first light splitting component and the second light splitting component are connected at one end, the angle between the plane where the first light splitting component is located and the plane where the second light splitting component is located is greater than 0 degrees and less than or equal to 90 degrees, and the first floating image and the second floating image partially overlap.

[0009] Optionally, in some embodiments of the present application, the first display light source comprises a first display panel, and the second display light source comprises a second display panel.

[0010] Optionally, in some embodiments of the present application, a first end of the first display panel is connected to a first end of the first light splitting component, a first end of the second retroreflective component is connected to a first end of the second light splitting component, and the first end of the first light splitting component is connected to the first end of the second light splitting component.

[0011] Optionally, in some embodiments of the present application, the display light emitted by the first display panel passes through the first light splitting component, the first retroreflective component, the first light splitting component, and the second light splitting component in sequence to form the first floating image after light conversion.

[0012] The display light emitted by the second display panel passes through the second light splitting component, the second retroreflective component, and the second light splitting component in sequence to form the second floating image after light conversion.

[0013] Optionally, in some embodiments of the present application, the length of the first light splitting component is greater than or equal to the length of the first retroreflective component, and the length of the first retroreflective component is greater than or equal to the length of the first display panel.

[0014] The length of the second light splitting component is greater than or equal to the length of the second retroreflective component, and the length of the second retroreflective component is greater than or equal to the length of the second display panel.

[0015] Optionally, in some embodiments of the present application, a second end of the first display panel is connected to a first end of the first retroreflective component, a second end of the first retroreflective component is connected to a second end of the first light splitting component, and the first display panel is perpendicular to the first retroreflective component.

[0016] A second end of the second retroreflective component is connected to a first end of the second display panel, a second end of the second display panel is connected to a second end of the second light splitting component, and the second display panel is perpendicular to the second retroreflective component.

[0017] Optionally, in some embodiments of the present application, the first display panel is parallel to the second retroreflective component.

[0018] Optionally, in some embodiments of the present application, the first light splitting component and the second light splitting component are both beam splitters.

[0019] The first retroreflective component and the second retroreflective component are both retroreflective films.

[0020] Optionally, in some embodiments of the present application, the first light splitting component and the second light splitting component are both reflective polarizers.

[0021] The first retroreflective component includes a first retroreflective film and a first quarter wave plate, and the first quarter wave plate is arranged on a side of the first retroreflective film close to the first light splitting component.

[0022] The second retroreflective component includes a second retroreflective film and a second quarter wave plate, and the second quarter wave plate is arranged on a side of the second retroreflective film close to the second light splitting component.

[0023] Optionally, in some embodiments of the present application, the first display light source includes a first display panel and a first plane mirror, and the first display panel, the first plane mirror, the first light splitting component and the first retroreflective component are sequentially connected end to end.

[0024] The second display light source includes a second display panel and a second plane mirror, and the second plane mirror, the second display panel, the second retroreflective component and the second light splitting component are sequentially connected end to end.

[0025] Optionally, in some embodiments of the present application, a first end of the first plane mirror is connected to a first end of the first light splitting component, a first end of the second retroreflective component is connected to a first end of the second light splitting component, and the first end of the first light splitting component is connected to the first end of the second light splitting component.

[0026] Optionally, in some embodiments of the present application, display light emitted by the first display panel is converted by the first plane mirror, the first light splitting component, the first retroreflective component, the first light splitting component and the second light splitting component in sequence to form the first floating image.

[0027] The second display panel emits display light, which is converted by the second plane mirror, the second light splitting component, the second retroreflective component and the second light splitting component in sequence to form the second floating image.

[0028] Optionally, in some embodiments of the present application, the length of the first light splitting component is greater than or equal to the length of the first retroreflective component, the length of the first retroreflective component is greater than or equal to the length of the first plane mirror, and the length of the first plane mirror is greater than or equal to the length of the first display panel.

[0029] The length of the second light splitting component is greater than or equal to the length of the second retroreflective component, the length of the second retroreflective component is greater than or equal to the length of the second plane mirror, and the length of the second plane mirror is greater than or equal to the length of the second display panel.

[0030] Optionally, in some embodiments of the present application, the first retroreflective component is parallel to the first display panel, the second retroreflective component is parallel to the second display panel, and the first retroreflective component is perpendicular to the second retroreflective component.

[0031] Optionally, in some embodiments of the present application, the second end of the first planar mirror is connected to the first end of the first display panel.

[0032] The first display module further comprises a first sub-rotating component and a second sub-rotating component, the first sub-rotating component is rotationally connected to the second end of the first planar mirror, and the second sub-rotating component is rotationally connected to the first end of the first display panel.

[0033] Optionally, in some embodiments of the present application, the first display module has a first state and a second state.

[0034] In the first state, the first planar mirror is located at a first position, and the first display panel is located at a second position.

[0035] In the second state, the first planar mirror is located at a third position, and the first display panel is located at a fourth position.

[0036] An included angle between the fourth position and the second position is twice an included angle between the third position and the first position.

[0037] Optionally, in some embodiments of the present application, the second end of the second display panel is connected to the first end of the second planar mirror.

[0038] The second display module further comprises a third sub-rotating component and a fourth sub-rotating component, the third sub-rotating component is rotationally connected to the first end of the second planar mirror, and the fourth sub-rotating component is rotationally connected to the second end of the second display panel.

[0039] Optionally, in some embodiments of the present application, the second display module has a third state and a fourth state.

[0040] In the third state, the second planar mirror is located at a fifth position, and the second display panel is located at a sixth position.

[0041] In the fourth state, the second planar mirror is located at a seventh position, and the second display panel is located at an eighth position.

[0042] An included angle between the eighth position and the sixth position is twice an included angle between the seventh position and the fifth position.

[0043] The application provides a three-dimensional display device, which comprises a first display module and a second display module, wherein the first display module comprises a first display light source, a first inverse reflection component and a first light splitting component which are sequentially connected end to end, the display light emitted by the first display light source is emitted from the first light splitting component and forms a first floating image; the second display module comprises a second display light source, a second inverse reflection component and a second light splitting component which are sequentially connected end to end, the display light emitted by the second display light source is emitted from the second light splitting component and forms a second floating image; one end of the first light splitting component and one end of the second light splitting component are connected, the included angle between the plane where the first light splitting component is located and the plane where the second light splitting component is located is greater than 0 degrees and less than or equal to 90 degrees; and the first floating image and the second floating image partially overlap. The display light emitted by the first display light source is emitted from the first light splitting component and forms the first floating image, the display light emitted by the second display light source is emitted from the second light splitting component and forms the second floating image, the first floating image and the second floating image partially overlap, the parallax effect is generated when the human eyes watch, the first floating image and the second floating image are fused to form a three-dimensional image, and thus the three-dimensional display is realized. BRIEF DESCRIPTION OF DRAWINGS

[0044] In order to more clearly illustrate the technical solutions in the embodiments of the application, the drawings needed to be used in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the application, and other drawings can be obtained by those skilled in the art without any creative effort on the basis of these drawings.

[0045] Figure 1 A sectional schematic view of a three-dimensional display device provided by the first embodiment of the application;

[0046] Figure 2 A sectional schematic view of a three-dimensional display device provided by the second embodiment of the application;

[0047] Figure 3 A sectional schematic view of a three-dimensional display device provided by the third embodiment of the application;

[0048] Figure 4 A sectional schematic view of a three-dimensional display device provided by the fourth embodiment of the application. DETAILED DESCRIPTION

[0049] With reference to the accompanying drawings, the technical solutions in the embodiments of the present application will be described clearly and completely. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all the other embodiments obtained by those skilled in the art without creative work fall within the scope of the present application. In addition, it should be understood that the specific implementation described herein is only used to illustrate and explain the present application, and is not used to limit the present application. In the present application, the orientation words such as "upper" and "lower" generally refer to the upper and lower in the actual use or working state of the device, and specifically refer to the direction of the drawing surface in the accompanying drawings; and "inner" and "outer" refer to the contour of the device.

[0050] The embodiment of the present application provides a three-dimensional display device, which comprises: a first display module comprising a first display light source, a first inverse reflection component and a first light splitting component connected in sequence, display light emitted by the first display light source is emitted from the first light splitting component and forms a first floating image; and a second display module comprising a second display light source, a second inverse reflection component and a second light splitting component connected in sequence, display light emitted by the second display light source is emitted from the second light splitting component and forms a second floating image; wherein one end of the first light splitting component and one end of the second light splitting component are connected, the angle between the plane where the first light splitting component is located and the plane where the second light splitting component is located is greater than 0 degrees and less than or equal to 90 degrees; and the first floating image and the second floating image partially overlap.

[0051] The following embodiments are described in detail. It should be noted that the order of the following embodiment descriptions is not limited as the preferred order of the embodiments.

[0052] Embodiment one

[0053] Please refer to Figure 1 ; Figure 1 A cross-sectional schematic view of a three-dimensional display device provided by the embodiment one of the present application.

[0054] The embodiment of the present application provides a kind of three-dimensional display device 1000, three-dimensional display device 1000 including first display module 100 and second display module 200, first display module 100 includes first display light source 11, first inverse reflection component 21 and first light splitting component 31 in turn head-to-tail, display light emitted by first display light source 11 is emitted from first light splitting component 31 and forms first suspended image 101;Second display module 200 includes second display light source 12, second inverse reflection component 22 and second light splitting component 32 in turn head-to-tail, display light emitted by second display light source 12 is emitted from second light splitting component 32 and forms second suspended image 201;Wherein, one end of first light splitting component 31 and one end of second light splitting component 32 are connected, the angle θ of the plane where first light splitting component 31 is located and the plane where second light splitting component 32 is located is greater than 0 degree and less than or equal to 90 degrees;First suspended image 101 and second suspended image 201 partially overlap.

[0055] Specifically, first display module 100 includes first display light source 11, first inverse reflection component 21 and first light splitting component 31, first display light source 11, first inverse reflection component 21 and first light splitting component 31 are in turn head-to-tail, as shown in Figure 1 In cross-sectional view, first display light source 11, first inverse reflection component 21 and first light splitting component 31 are in turn head-to-tail and constitute a triangular or approximately triangular structure.

[0056] Specifically, display light emitted by first display light source 11 is emitted from first light splitting component 31 after optical conversion of first inverse reflection component 21 and first light splitting component 31, and forms first suspended image 101.

[0057] Specifically, display light emitted by second display light source 12 is emitted from second light splitting component 32 after optical conversion of second inverse reflection component 22 and second light splitting component 32, and forms second suspended image 201.

[0058] Specifically, first suspended image 101 and second suspended image 201 are located on the same side of three-dimensional display device 1000, in Figure 1 First suspended image 101 and second suspended image 201 are formed on the same side of three-dimensional display device 1000.For example, first suspended image 101 and second suspended image 201 are located in the range between the plane where first light splitting component 31 is located and the plane where second light splitting component 32 is located, but not limited to this.

[0059] Specifically, the angle θ of the plane where first light splitting component 31 is located and the plane where second light splitting component 32 is located is greater than 0 degree and less than or equal to 90 degrees, the greater the angle θ, the larger the imaging space.

[0060] Specifically, in the embodiment of the present application, the connection setting means adjacent, or close or connected setting.

[0061] Specifically, the first suspended image 101 and the second suspended image 201 partially overlap. When viewed by the human eye, one of the first suspended image 101 and the second suspended image 201 is located at the front (closer to the human eye), and the other is located at the back (farther from the human eye). The first suspended image 101 and the second suspended image 201 have different color depths and / or brightness, which creates an optical illusion when viewed by the human eye. The first suspended image 101 and the second suspended image 201 are superimposed on two transparent screens with different brightness, and the observer can perceive a three-dimensional image. If the image at the front is brighter, the fused image appears closer to the observer; if the image at the back is brighter, the fused image appears farther away from the observer. By utilizing the display effect of different distances from the observer's vision, and by using the display depth formed by the different color depths and / or different brightnesses of the first suspended image 101 and the second suspended image 201, a three-dimensional image is fused together.

[0062] In this embodiment, the display light emitted by the first display light source 11 is emitted from the first beam splitter 31 and forms a first suspended image 101, and the display light emitted by the second display light source 12 is emitted from the second beam splitter 32 and forms a second suspended image 201. The first suspended image 101 and the second suspended image 201 partially overlap. When viewed by the human eye, the first suspended image 101 and the second suspended image 201 merge to form a three-dimensional image, thereby realizing three-dimensional display.

[0063] In some embodiments, the first display light source 11 includes a first display panel 111, and the second display light source 12 includes a second display panel 121.

[0064] Specifically, such as Figure 1 As shown, the first display panel 111 serves as the first display light source 11, emitting display light from the first display module 100, and the second display panel 121 serves as the second display light source 12, emitting display light from the second display module 200. In subsequent or other implementations, the first display light source 11 may include the first display panel 111 and other component structures, and the second display light source 12 may include the second display panel 121 and other component structures.

[0065] In some embodiments, the first end 11101 of the first display panel is connected to the first end 3101 of the first beam splitter, the first end 2201 of the second retroreflective component is connected to the first end 3201 of the second beam splitter, and the first end 3101 of the first beam splitter is connected to the first end 3201 of the second beam splitter.

[0066] Specifically, the first end 3101 of the first beam splitter is connected to the first end 3201 of the second beam splitter, which facilitates the fusion of the first suspended image 101 and the second suspended image 201 to form a three-dimensional image.

[0067] In some embodiments, the display light emitted from the first display panel 111 is converted into a first suspended image after passing through the first beam splitter 31, the first retroreflector 21, the first beam splitter, and the second beam splitter 32 in sequence; the display light emitted from the second display panel 121 is converted into a second suspended image after passing through the second beam splitter 32, the second retroreflector 22, and the second beam splitter 32 in sequence.

[0068] Specifically, such as Figure 1 As shown, the first display light source 11 or the first display panel 111 emits a first display light 102. The first display light 102 is reflected by the first beam splitter 31, reflected by the first retroreflector 21, transmitted by the first beam splitter 31, and reflected by the second beam splitter 32 in sequence to form a first suspended image 101.

[0069] Specifically, such as Figure 1 As shown, the second display light source 12 or the second display panel 121 emits a second display light 202. The second display light 202 is reflected by the second beam splitter 32, reflected by the second retroreflector 22, and transmitted by the second beam splitter 32 in sequence to form a second suspended image 201.

[0070] Specifically, the first retroreflector 21 and the second retroreflector 22 can reflect light incident on their surfaces in the opposite direction to or close to the original incident direction. The surfaces of the first retroreflector 21 and the second retroreflector 22 can be arrayed triangular pyramids or cubic pyramid microstructures. Light incident on the surfaces of the first retroreflector 21 and the second retroreflector 22 can be reflected back with a very small divergence angle. The structure of the first retroreflector 21 and the second retroreflector 22 is not limited to this.

[0071] Specifically, the first beam splitter 31 can transmit light and the second beam splitter 32 can both reflect and transmit light, and the ratio of transmitted light to reflected light can be preset or set according to the film structure.

[0072] In some embodiments, the length of the first beam splitter 31 is greater than or equal to the length of the first retroreflector 21, and the length of the first retroreflector 21 is greater than or equal to the length of the first display panel 111; the length of the second beam splitter 32 is greater than or equal to the length of the second retroreflector 22, and the length of the second retroreflector 22 is greater than or equal to the length of the second display panel 121.

[0073] Specifically, the length of the first retroreflective component 21 is greater than or equal to the length of the first display panel 111, which allows most or all of the first display light 102 emitted by the first display panel 111 to be reflected by the first retroreflective component 21; the length of the first beam splitter 31 is greater than or equal to the length of the first retroreflective component 21, which allows most or all of the first display light 102 emitted by the first display panel 111 to be reflected or / and transmitted by the first beam splitter 31.

[0074] Specifically, the length of the second retroreflective component 22 is greater than or equal to the length of the second display panel 121, which allows most or all of the second display light 202 emitted by the second display panel 121 to be reflected by the second retroreflective component 22; the length of the second beam splitter 32 is greater than or equal to the length of the second retroreflective component 22, which allows most or all of the second display light 202 emitted by the second display panel 121 to be reflected or / and transmitted by the second beam splitter 32.

[0075] In some embodiments, the second end 11102 of the first display panel is connected to the first end 2101 of the first retroreflective component, the second end 2102 of the first retroreflective component is connected to the second end 3102 of the first beam splitter, and the first display panel 111 is perpendicular to the first retroreflective component 21; the second end 2202 of the second retroreflective component is connected to the first end 12101 of the second display panel, the second end 12102 of the second display panel is connected to the second end 3202 of the second beam splitter, and the second display panel 121 is perpendicular to the second retroreflective component 22.

[0076] Specifically, in a preferred embodiment, the first display panel 111 is perpendicular to the first retroreflective component 21, which is beneficial for forming a high-quality first suspended image 101. Generally, if the angle between the first display panel 111 and the first retroreflective component 21 is greater than 90°, some light from the first display panel 111 will be lost and will not enter the first retroreflective component 21, greatly reducing the light efficiency. If the angle between the first display panel 111 and the first retroreflective component 21 is less than 90°, the light from the first display panel 111 will enter the first retroreflective component 21 before entering the first beam splitter 31, forming more noise. Similarly, the second display panel 121 is perpendicular to the second retroreflective component 22, which is beneficial for forming a high-quality second suspended image 201. The first display panel 111 being perpendicular to the first retroreflective component 21 and the second display panel 121 being perpendicular to the second retroreflective component 22 facilitates better fusion of the first suspended image 101 and the second suspended image 201 into a high-quality three-dimensional image.

[0077] In some embodiments, the first display panel 111 is parallel to the second retroreflective component 22.

[0078] Specifically, in a preferred embodiment, the first display panel 111 is parallel to the second retroreflective component 22, which facilitates better fusion of the first suspended image 101 and the second suspended image 201 into a three-dimensional image.

[0079] In some embodiments, the first beam splitter 31 and the second beam splitter 32 are both beam splitters; the first retroreflector 21 and the second retroreflector 22 are both retroreflective films.

[0080] Specifically, both the first beam splitter 31 and the second beam splitter 32 are beam splitters. The structure of the beam splitter can be coated glass, with one or more thin films coated on the surface of the optical glass. When a beam of light is projected onto the coated glass, the beam is split into two or more beams through reflection and transmission. The structure of the beam splitter is not limited to this.

[0081] Specifically, both the first retroreflective component 21 and the second retroreflective component 22 are retroreflective films. The structure of the retroreflective film can be an array of triangular pyramids or cubic pyramids on the substrate surface, but the structure of the retroreflective film is not limited to this.

[0082] Example 2

[0083] Please see Figure 2 ; Figure 2 This is a cross-sectional schematic diagram of a three-dimensional display device provided in Embodiment 2 of this application.

[0084] This embodiment is the same as or similar to the three-dimensional display device 1000 in any of the embodiments in Embodiment 1. The similarities will not be repeated here, and only the differences will be described.

[0085] In some embodiments, both the first beam splitter 31 and the second beam splitter 32 reflect polarizers. The first retroreflective component 21 includes a first retroreflective film 211 and a first quarter-wave plate 212, with the first quarter-wave plate 212 disposed on the side of the first retroreflective film 211 close to the first beam splitter 31. The second retroreflective component 22 includes a second retroreflective film 221 and a second quarter-wave plate 222, with the second quarter-wave plate 222 disposed on the side of the second retroreflective film 221 close to the second beam splitter 32.

[0086] Specifically, the reflective polarizer can reflect light in a first polarization direction and transmit light in a second polarization direction, wherein the first polarization direction is perpendicular to the second polarization direction.

[0087] Specifically, the first reverse membrane 211 and the second reverse membrane 221 have the same performance and structure as the reverse membrane in Example 1, and will not be described again here.

[0088] Specifically, the first quarter-wave plate 212 is disposed on the side of the first inverse film 211 close to the first beam splitter 31. The light rays with the first polarization direction reflected by the first beam splitter 31 first pass through the first quarter-wave plate 212, are reflected by the first inverse film 211, and then pass through the first quarter-wave plate 212 again. The light rays with the first polarization direction are then converted into light rays with the second polarization direction, and the light rays with the second polarization direction can pass through the first beam splitter 31.

[0089] Specifically, the second quarter-wave plate 222 is disposed on the side of the second inverse film 221 close to the second beam splitter 32. The light rays with the first polarization direction reflected by the second beam splitter 32 first pass through the second quarter-wave plate 222, are reflected by the second inverse film 221, and then pass through the second quarter-wave plate 222. The light rays with the first polarization direction are then converted into light rays with the second polarization direction, and the light rays with the second polarization direction can pass through the second beam splitter 32.

[0090] Specifically, the polarization directions of the light reflected or transmitted by the first beam splitter 31 and the second beam splitter 32 may be the same or different.

[0091] Specifically, when the first display panel 111 and the second display panel 121 are liquid crystal display panels (TFT-LCD), a polarizer is provided on the surface of the liquid crystal display panel. Alternatively, when the first display panel 111 and the second display panel 121 are other types of display panels and a polarizer is provided on their surfaces, the first display panel 111 is paired with the first beam splitter 31. The polarization direction of the first display light 102 emitted by the first display panel 111 is the same as the polarization direction of the reflected light from the first beam splitter 31. The first display light 102 emitted by the first display panel 111 is first reflected by the first beam splitter 31 to the first retroreflector 21. At this time, no light passes through the first beam splitter 31. All the light from the first display panel 111 is utilized to form the first suspended image 101, which increases the light utilization rate of the first display panel 111 and avoids the first display light 102 passing through the first beam splitter 31 without being reflected by the first retroreflector 21 and interfering with the first suspended image 101, thereby improving the imaging quality of the three-dimensional display device 1000. The light path and beneficial effects of the second display module 200 are the same as or similar to those of the first display module 100, and will not be described again here.

[0092] Example 3

[0093] Please see Figure 3 ; Figure 3 This is a cross-sectional schematic diagram of a three-dimensional display device provided in Embodiment 3 of this application.

[0094] This embodiment is similar to the three-dimensional display device 1000 in any of Embodiments 1 / 2. The similarities will not be repeated here, and only the differences will be described.

[0095] In some embodiments, the first display light source 11 includes a first display panel 111 and a first planar reflector 112, wherein the first display panel 111, the first planar reflector 112, the first beam splitter 31 and the first retroreflector 21 are connected end to end in sequence; the second display light source 12 includes a second display panel 121 and a second planar reflector 122, wherein the second planar reflector 122, the second display panel 121, the second retroreflector 22 and the second beam splitter 32 are connected end to end in sequence.

[0096] Specifically, the first display light source 11 includes a first display panel 111 and a first plane mirror 112. The first display light 102 emitted by the first display panel 111 is first reflected by the first plane mirror 112 before being incident on other components.

[0097] Specifically, the second display light source 12 includes a second display panel 121 and a second plane mirror 122. The second display light 202 emitted by the second display panel 121 is first reflected by the second plane mirror 122 before being incident on other components.

[0098] In some embodiments, the first end 11201 of the first planar reflector is connected to the first end 3101 of the first beam splitter, the first end 2201 of the second retroreflector is connected to the first end 3201 of the second beam splitter, and the first end 3101 of the first beam splitter is connected to the first end 3201 of the second beam splitter.

[0099] Specifically, the first end 3101 of the first beam splitter is connected to the first end 3201 of the second beam splitter, which facilitates the fusion of the first suspended image 101 and the second suspended image 201 to form a three-dimensional image.

[0100] In some embodiments, the display light emitted from the first display panel 111 is sequentially converted by the first planar reflector 112, the first beam splitter 31, the first retroreflector 21, the first beam splitter 31 and the second beam splitter 32 to form a first suspended image; the display light emitted from the second display panel 121 is sequentially converted by the second planar reflector 122, the second beam splitter 32, the second retroreflector 22 and the second beam splitter 32 to form a second suspended image.

[0101] Specifically, the first display light 102 emitted by the first display panel 111 is first reflected by the first planar reflector 112 before being incident on the first beam splitter 31. The subsequent optical path and optical conversion process of the first display light 102 are the same as in the above embodiment, and will not be repeated here. The first planar reflector 112 reflects the first display light 102 emitted by the first display panel 111, such as... Figure 3 As shown, the first planar reflector 112 forms an image, which is equivalent to the first display panel 111 being located at position 111-2.

[0102] Specifically, the second display light 202 emitted from the second display panel 121 is first reflected by the second planar reflector 122 before entering the second beam splitter 32. The subsequent optical path and optical conversion process of the second display light 202 are the same as in the above embodiment, and will not be repeated here. The second planar reflector 122 reflects the second display light 202 emitted from the second display panel 121, such as... Figure 3 As shown, the second plane mirror 122 forms an image, which is equivalent to the second display panel 121 being located at position 121-2.

[0103] In this embodiment, by setting the first planar reflector 112 and the second planar reflector 122, such that the first planar reflector 112 and / or the first display panel 111 have a preset small rotation angle relative to the first retroreflective component 21, or that the first planar reflector 112 and / or the first display panel 111 have a small preset angular relationship, the position of the first levitation image 101 can undergo a significant change or migration. Similarly, the position of the second levitation image 201 can also undergo a significant change or migration, which will not be elaborated further here. Therefore, the first levitation image 101 and the second levitation image 201 can achieve a greater display depth.

[0104] In some embodiments, the length of the first beam splitter 31 is greater than or equal to the length of the first retroreflector 21, the length of the first retroreflector 21 is greater than or equal to the length of the first plane mirror 112, and the length of the first plane mirror 112 is greater than or equal to the length of the first display panel 111; the length of the second beam splitter 32 is greater than or equal to the length of the second retroreflector 22, the length of the second retroreflector 22 is greater than or equal to the length of the second plane mirror 122, and the length of the second plane mirror 122 is greater than or equal to the length of the second display panel 121.

[0105] Specifically, the length of the first planar reflector 112 is greater than or equal to the length of the first display panel 111, which allows the first planar reflector 112 to reflect all or most of the display light of the first display panel 111.

[0106] Specifically, the length of the second plane mirror 122 is greater than or equal to the length of the second display panel 121, which allows the second plane mirror 122 to reflect all or most of the display light from the second display panel 121.

[0107] In some embodiments, the first retroreflective component 21 is parallel to the first display panel 111, the second retroreflective component 22 is parallel to the second display panel 121, and the first retroreflective component 21 is perpendicular to the second retroreflective component 22.

[0108] Specifically, the first retroreflective component 21 is parallel to the first display panel 111, and the display light emitted by the first display panel 111 can be incident on the first retroreflective component 21 more efficiently or more, which is beneficial to forming a high-quality first levitation image 101.

[0109] Specifically, the second retroreflective component 22 is parallel to the second display panel 121, and the display light emitted by the second display panel 121 can be incident on the second retroreflective component 22 more efficiently or more, which is beneficial to forming a high-quality second levitation image 201.

[0110] Specifically, the first retroreflective component 21 is perpendicular to the second retroreflective component 22, which helps the first suspended image 101 and the second suspended image 201 to better fuse into a high-quality three-dimensional image.

[0111] Specifically, Figure 3 The diagram illustrates that the second end 12102 of the second display panel is connected to the first end 12201 of the second plane mirror, and the second end 12202 of the second plane mirror is connected to the second end 3202 of the second beam splitter.

[0112] Example 4

[0113] Please see Figure 4 ; Figure 4 This is a cross-sectional schematic diagram of a three-dimensional display device provided in Embodiment 4 of this application. Figure 4 and Figure 3 Similar, but different in that a first rotating component 61 and a second rotating component 62 are added.

[0114] This embodiment is similar to the three-dimensional display device 1000 in any of the embodiments in Embodiment 3. The similarities will not be repeated here, and only the differences will be described.

[0115] Specifically, the first rotating component 61 includes a first sub-rotating component 611 and a second sub-rotating component 612. Specifically, the second rotating component 62 includes a third sub-rotating component 621 and a fourth sub-rotating component 622.

[0116] In some embodiments, the second end 11202 of the first planar reflector is connected to the first end 11101 of the first display panel; the first display module 100 further includes a first sub-rotating component 611 and a second sub-rotating component 612, the first sub-rotating component 611 being rotatably connected to the second end 11202 of the first planar reflector, and the second sub-rotating component 612 being rotatably connected to the first end 11101 of the first display panel.

[0117] Specifically, the first sub-rotating component 611 and the second sub-rotating component 612 can be a dual-axis rotator or other rotating mechanical structure, which is not limited here.

[0118] Specifically, the first display panel 111 and the first planar reflector 112 can be rotated to adjust the relative positional relationship between the first floating image 101 and the second floating image 201, including adjusting the display depth and the display position. By dynamically adjusting the display distance between the first floating image 101 and the second floating image 201, the image fusion state can be changed, and different display effects can be achieved.

[0119] In some embodiments, the first display module has a first state and a second state; in the first state, the first planar reflector 112 is located in a first position and the first display panel 111 is located in a second position; in the second state, the first planar reflector 112 is located in a third position and the first display panel 111 is located in a fourth position; the angle between the fourth position and the second position is twice the angle between the third position and the first position.

[0120] Specifically, the first planar reflector 112 rotates in the same direction as the first display panel 111, the angle between the fourth position and the second position is β1, the angle between the third position and the first position is α1, and β1 is twice α1.

[0121] Specifically, both the first plane mirror 112 and the first display panel 111 rotate clockwise or counterclockwise. The rotation angle β1 of the first display panel 111 is twice the rotation angle α1 of the first plane mirror 112, which can keep the size of the first suspended image 101 unchanged and only change its position.

[0122] In some embodiments, the second end 12102 of the second display panel is connected to the first end 12201 of the second planar reflector; the second display module 200 further includes a third sub-rotating component 621 and a fourth sub-rotating component 622, the third sub-rotating component 621 being rotatably connected to the first end 12201 of the second planar reflector, and the fourth sub-rotating component 622 being rotatably connected to the second end 12102 of the second display panel.

[0123] Specifically, the third sub-rotating component 621 and the fourth sub-rotating component 622 can be a dual-axis rotator or other rotating mechanical structure, which is not limited here.

[0124] Specifically, the second display panel 121 and the second planar reflector 122 can be rotated to adjust the relative position between the second floating image 201 and the first floating image 101, including adjusting the display depth and display position. By dynamically adjusting the display distance between the first floating image 101 and the second floating image 201, the image fusion state can be changed, and different display effects can be achieved.

[0125] In some embodiments, the second display module 200 has a third state and a fourth state; in the third state, the second planar reflector 122 is located in the fifth position and the second display panel 121 is located in the sixth position; in the fourth state, the second planar reflector 122 is located in the seventh position and the second display panel 121 is located in the eighth position; the angle between the eighth position and the sixth position is twice the angle between the seventh position and the fifth position.

[0126] Specifically, the second plane mirror 122 rotates in the same direction as the second display panel 121, the angle between the eighth position and the sixth position is β2, the angle between the seventh position and the fifth position is α2, and β2 is twice α2.

[0127] Specifically, both the second plane mirror 122 and the second display panel 121 rotate clockwise or counterclockwise. The rotation angle β2 of the second display panel 121 is twice the rotation angle α2 of the second plane mirror 122, which can keep the size of the second suspended image unchanged and only change its position.

[0128] Furthermore, the first plane mirror 112, the first display panel 111, the second plane mirror 122, and the second display panel 121 rotate in the same direction.

[0129] Furthermore, the rotation angle of the first display panel 111 is equal to the rotation angle of the second display panel, which can synchronously adjust the positions of the first floating image 101 and the second floating image 201, so that the fused three-dimensional image has excellent display effect.

[0130] In this embodiment, the rotation angle β1 of the first display panel 111 is greater than 0 degrees and less than 90 degrees, and the rotation angle α1 of the first plane mirror 112 is greater than 0 degrees and less than 45 degrees; or / and the rotation angle β2 of the second display panel 121 is greater than 0 degrees and less than 90 degrees, and the rotation angle α2 of the second plane mirror 122 is greater than 0 degrees and less than 45 degrees. By implementing this method, a small rotation of the first display panel 111 and the first plane mirror 112 can be achieved, and the first suspended image 101 can obtain a large displacement distance; or / and a small rotation of the second display panel 121 and the second plane mirror 122 can be achieved, and the second suspended image 201 can obtain a large displacement distance.

[0131] Furthermore, in a preferred embodiment, the first retroreflective component 21 is parallel to the first display panel 111, the second retroreflective component 22 is parallel to the second display panel 121, and the first retroreflective component 21 is perpendicular to the second retroreflective component 22. At this time, the first plane mirror 112, the first display panel 111, the second plane mirror 122 and the second display panel 121 rotate in the same direction, which can better adjust the relative positional relationship between the first suspended image 101 and the second suspended image 201, which is beneficial for fusing into a three-dimensional image.

[0132] In this embodiment, by mechanically rotating the components in the three-dimensional display device 1000, a certain change in the floating distance can be achieved, so that the three-dimensional image has a greater display depth. In addition, the image fusion state can be changed by dynamically adjusting the display distance between the first floating image 101 and the second floating image 201, so as to achieve different display effects.

[0133] It should be noted that in any of the three-dimensional display devices 1000 described above, by adjusting the brightness of the first display panel 111, the brightness of the second display panel 121, and the preset positions of the first display panel 111 and the second display panel 121, images with different front and rear positions and different brightness of the first floating image 101 and the second floating image 201 can be obtained for deep fusion.

[0134] It should be noted that in any of the three-dimensional display devices 1000 described above, the brightness of the suspended image is adjusted or controlled by adjusting or presetting different transmission and reflection ratios of the first beam-splitting component 31 and the second beam-splitting component 32. For example, if the transmittance of the first beam-splitting component 31 is 50% and the reflectance is 50%, and the transmittance of the second beam-splitting component 32 is 75% and the reflectance is 250%, the brightness of the fused image can be 18.75% of the initial brightness of the first display light source 11 or the second display light source 12.

[0135] The above provides a detailed description of a three-dimensional display device provided in the embodiments of this application. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A three-dimensional display device, characterized by comprising: Comprising: a first display module comprising a first display light source, a first retroreflective component and a first light splitting component connected in sequence end to end, display light emitted by the first display light source exits the first light splitting component and forms a first floating image; and a second display module comprising a second display light source, a second retroreflective component and a second light splitting component connected in sequence end to end, display light emitted by the second display light source exits the second light splitting component and forms a second floating image; wherein one end of the first light splitting component and one end of the second light splitting component are connected, the angle between the plane where the first light splitting component is located and the plane where the second light splitting component is located is greater than 0 degrees and less than or equal to 90 degrees; the first floating image and the second floating image partially overlap; the first display light source comprises a first display panel, and the second display light source comprises a second display panel; the first end of the first display panel is connected to the first end of the first light splitting component, the first end of the second retroreflective component is connected to the first end of the second light splitting component, and the first end of the first light splitting component is connected to the first end of the second light splitting component.

2. The three-dimensional display apparatus of claim 1, wherein The display light emitted by the first display panel is converted by the first light splitting component, the first retroreflective component, the first light splitting component and the second light splitting component in sequence to form the first floating image; The display light emitted by the second display panel is converted by the second light splitting component, the second retroreflective component and the second light splitting component in sequence to form the second floating image.

3. The three-dimensional display apparatus of claim 1, wherein The length of the first light splitting component is greater than or equal to the length of the first retroreflective component, and the length of the first retroreflective component is greater than or equal to the length of the first display panel; The length of the second light splitting component is greater than or equal to the length of the second retroreflective component, and the length of the second retroreflective component is greater than or equal to the length of the second display panel.

4. The autostereoscopic display apparatus of claim 3, wherein, The second end of the first display panel is connected to the first end of the first retroreflective component, the second end of the first retroreflective component is connected to the second end of the first light splitting component, and the first display panel is perpendicular to the first retroreflective component; The second end of the second retroreflective component is connected to the first end of the second display panel, the second end of the second display panel is connected to the second end of the second light splitting component, and the second display panel is perpendicular to the second retroreflective component.

5. The autostereoscopic display apparatus of claim 4, wherein, The first display panel is parallel to the second retroreflective component.

6. The three-dimensional display device according to any one of claims 1 to 5, wherein, The first light splitting component and the second light splitting component are both beam splitters, and the first retroreflective component and the second retroreflective component are both retroreflective films; or The first light splitting component and the second light splitting component are both reflective polarizing plates, the first retroreflective component comprises a first retroreflective film and a first quarter-wave plate, the first quarter-wave plate is arranged on the side of the first retroreflective film close to the first light splitting component, the second retroreflective component comprises a second retroreflective film and a second quarter-wave plate, and the second quarter-wave plate is arranged on the side of the second retroreflective film close to the second light splitting component.

7. A three-dimensional display device, characterized by comprising: Comprising: The first display module comprises a first display light source, a first retroreflective component and a first light splitting component connected in sequence, display light emitted by the first display light source exits the first light splitting component and forms a first floating image; and The second display module comprises a second display light source, a second retroreflective component and a second light splitting component connected in sequence, display light emitted by the second display light source exits the second light splitting component and forms a second floating image; wherein one end of the first light splitting component and one end of the second light splitting component are connected, the angle between the plane where the first light splitting component is located and the plane where the second light splitting component is located is greater than 0 degrees and less than or equal to 90 degrees; the first floating image and the second floating image partially overlap; The first display light source comprises a first display panel and a first plane mirror, the first display panel, the first plane mirror, the first light splitting component and the first retroreflective component are connected in sequence; The second display light source comprises a second display panel and a second plane mirror, the second plane mirror, the second display panel, the second retroreflective component and the second light splitting component are connected in sequence.

8. The autostereoscopic display apparatus of claim 7, wherein, The first end of the first plane mirror is connected with the first end of the first light splitting component, the first end of the second retroreflective component is connected with the first end of the second light splitting component, and the first end of the first light splitting component is connected with the first end of the second light splitting component.

9. The autostereoscopic display apparatus of claim 8, wherein, The display light emitted by the first display panel passes through the first plane mirror, the first light splitting component, the first retroreflective component, the first light splitting component and the second light splitting component in sequence to form the first floating image after light conversion; The display light emitted by the second display panel passes through the second plane mirror, the second light splitting component, the second retroreflective component and the second light splitting component in sequence to form the second floating image after light conversion.

10. The autostereoscopic display apparatus of claim 8, wherein, The length of the first light splitting component is greater than or equal to the length of the first retroreflective component, the length of the first retroreflective component is greater than or equal to the length of the first plane mirror, and the length of the first plane mirror is greater than or equal to the length of the first display panel; The length of the second light splitting component is greater than or equal to the length of the second retroreflective component, the length of the second retroreflective component is greater than or equal to the length of the second plane mirror, and the length of the second plane mirror is greater than or equal to the length of the second display panel.

11. The autostereoscopic display apparatus of claim 10, wherein, The first retroreflective component is parallel to the first display panel, the second retroreflective component is parallel to the second display panel, and the first retroreflective component is perpendicular to the second retroreflective component.

12. The three-dimensional display device of claim 10 or 11, wherein The second end of the first plane mirror is connected with the first end of the first display panel; The first display module further comprises a first sub-rotating component and a second sub-rotating component, the first sub-rotating component is rotationally connected with the second end of the first plane mirror, and the second sub-rotating component is rotationally connected with the first end of the first display panel; The first display module has a first state and a second state; In the first state, the first plane mirror is located at a first position, and the first display panel is located at a second position; In the second state, the first plane mirror is located at a third position, and the first display panel is located at a fourth position; An included angle between the fourth position and the second position is twice an included angle between the third position and the first position.

13. The autostereoscopic display apparatus of claim 12, wherein, A second end of the second display panel is connected with a first end of the second plane mirror; The second display module further comprises a third sub-rotating component and a fourth sub-rotating component, the third sub-rotating component is rotatably connected with the first end of the second plane mirror, and the fourth sub-rotating component is rotatably connected with the second end of the second display panel; The second display module has a third state and a fourth state; In the third state, the second plane mirror is located at a fifth position, and the second display panel is located at a sixth position; In the fourth state, the second plane mirror is located at a seventh position, and the second display panel is located at an eighth position; An included angle between the eighth position and the sixth position is twice an included angle between the seventh position and the fifth position.

Images