CN110908135A - Three-dimensional image suspension display device and method - Google Patents
Three-dimensional image suspension display device and method Download PDFInfo
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Abstract
The embodiment of the invention provides a three-dimensional image suspension display device and a method thereof, wherein the three-dimensional image suspension display device comprises: an image projection source and an optical flat; the image projection source is used for emitting light rays to form a three-dimensional image to be displayed; the optical flat plate is used for receiving light rays forming the three-dimensional image to be displayed and reflecting the light rays in the air to form a three-dimensional suspension image; wherein the optical flat plate is obliquely arranged relative to the image projection source. The light rays for forming the three-dimensional image to be displayed are emitted by the image projection source, and the light rays form the three-dimensional suspension image in the air after being reflected by the light ray flat plate, so that the suspension display of the three-dimensional image is realized.
Description
Technical Field
The invention relates to the technical field of stereoscopic display, in particular to a three-dimensional image suspension display device and a three-dimensional image suspension display method.
Background
With the continuous development of multimedia technology, image displays have become an indispensable part of modern life, and from monitoring displays to smart phones and flat panel television screens, image displays can provide users with information in various forms. At present, the simple planar two-dimensional display technology cannot meet the requirements of people, the two-dimensional image only enables people to know information on one side surface of a certain space in the world, the three-dimensional knowledge of people on the all-dimensional space of an object is limited, people hope to reflect the real world more directly, and a virtual image or the object can be displayed in the air.
The floating display technology is developed rapidly in recent years, and the floating display technology refers to the technology that images are directly floating displayed in the air without a projection screen or a medium, virtual images or objects can be displayed in the air without any carrying medium, and the floating display technology has strong visual impact. However, the existing suspension display device can only display a plane image, lacks depth information and cannot display a real three-dimensional image.
The above background disclosure is only for the purpose of assisting understanding of the inventive concept and technical solutions of the present invention, and does not necessarily belong to the prior art of the present patent application, and should not be used for evaluating the novelty and inventive step of the present application in the case that there is no clear evidence that the above content is disclosed at the filing date of the present patent application.
Disclosure of Invention
In order to solve the above problems in the prior art, embodiments of the present invention provide a three-dimensional image floating display device and method, which aim to achieve floating display of a three-dimensional image.
The embodiment of the invention provides a three-dimensional image suspension display device, which comprises: an image projection source and an optical flat; wherein the content of the first and second substances,
the image projection source is used for emitting light rays to form a three-dimensional image to be displayed and transmitting the light rays forming the three-dimensional image to be displayed to the optical flat plate;
the optical flat plate is used for receiving light rays forming the three-dimensional image to be displayed and reflecting the light rays in the air to form a three-dimensional suspension image; wherein the optical flat plate is obliquely arranged relative to the image projection source.
In some embodiments, the image projection source is a three-dimensional image projection source comprising a two-dimensional planar display device and a microlens array; the micro-lens array is arranged on one side of the two-dimensional plane display device, which emits light rays, and the distance between the two-dimensional plane display device and the micro-lens array is equal to or larger than the focal length of the micro-lens array.
In some embodiments, the tilt angle between the optical flat and the image projection source is set to (0,89 °).
In some embodiments, the two-dimensional planar display device is configured to emit light rays, and the microlens array is configured to modulate the direction of the light rays to form a three-dimensional image to be displayed.
In some embodiments, the microlens array includes a plurality of cylindrical lenses, the inclination angle of the plurality of cylindrical lenses is set to (0,89 °), and the pitch p of the plurality of cylindrical lenses is set to 0< p <20 mm.
In some embodiments, the microlens array includes a plurality of round lenses, and the round lens array formed by the round lenses is arranged in a rectangular arrangement or a hexagonal arrangement; the diameter d of the round lens is set to be 0< d <20mm, and the edge distance q between two adjacent round lenses is set to be 0< q <8 mm.
In some embodiments, the optical plate comprises a first micro mirror array and a second micro mirror array, wherein the first micro mirror array is orthogonal to the second micro mirror array.
The embodiment of the invention provides a three-dimensional image suspension display method, which comprises the following steps:
s1, emitting light through an image projection source to form a three-dimensional image to be displayed, and transmitting the light forming the three-dimensional image to be displayed to an optical flat plate;
s2, receiving the light forming the three-dimensional image to be displayed through the optical flat plate, reflecting the light in the air to form a three-dimensional suspension image, and performing suspension display on the three-dimensional image; wherein the optical flat plate is arranged obliquely relative to the image projection source.
In some embodiments, in step S1, the image projection source is a three-dimensional image projection source including a two-dimensional flat display device and a microlens array; the micro lens array is arranged on one side of the two-dimensional plane display device, which emits light rays, and the distance between the two-dimensional plane display device and the micro lens array is set to be equal to or larger than the focal length of the micro lens array.
In some embodiments, in step S2, the optical plate includes a first micro mirror array and a second micro mirror array; the first micro reflector array and the second micro reflector array are arranged in an orthogonal mode, the image projection source emits light to form the three-dimensional image to be displayed, the light is transmitted to the first micro reflector array and the second micro reflector array in sequence, and the first micro reflector array and the second micro reflector array reflect the light and then form the three-dimensional suspended image in the air.
The embodiment of the invention provides a three-dimensional image suspension display device, which comprises: an image projection source and an optical flat; wherein the image projection source is used for emitting light to form a three-dimensional image to be displayed; the optical flat plate is used for receiving the light rays forming the three-dimensional image to be displayed and reflecting the light rays in the air to form a three-dimensional suspension image; wherein the optical flat plate is obliquely arranged relative to the image projection source. The light rays for forming the three-dimensional image to be displayed are emitted by the image projection source, and the light rays form the three-dimensional suspension image in the air after being reflected by the light ray flat plate, so that the suspension display of the three-dimensional image is realized.
Drawings
In order to more clearly illustrate the embodiments of the present invention or the technical solutions in the prior art, the drawings used in the description of the embodiments or the prior art will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present invention, and for those skilled in the art, other drawings can be obtained according to these drawings without creative efforts.
FIG. 1 is a schematic structural diagram of a three-dimensional image suspension display device according to an embodiment of the present invention;
FIGS. 2a-2c are schematic diagrams of a microlens array of an image projection source of a three-dimensional image suspension display device according to an embodiment of the present invention;
FIG. 3 is a schematic diagram of an optical flat panel of a three-dimensional image suspension display device according to an embodiment of the present invention;
FIG. 4 is an imaging schematic diagram of a three-dimensional image suspension display device according to an embodiment of the present invention;
fig. 5 is a flowchart of a three-dimensional image suspension display method according to another embodiment of the invention.
Detailed Description
The present invention will be described in detail below with reference to the following embodiments in order to better understand the present invention, but the following embodiments do not limit the scope of the present invention. It should be noted that the drawings provided in the following embodiments are only for illustrating the basic concept of the present invention, and the drawings only show the components related to the present invention rather than the number, shape and size of the components in actual implementation, the shape, number and proportion of the components in actual implementation can be changed freely, and the layout of the components can be more complicated.
The following is a more detailed description of the present invention in connection with specific preferred embodiments and it is not intended that the practice of the invention be limited to these descriptions. For those skilled in the art to which the invention pertains, several equivalent substitutions or obvious modifications can be made without departing from the spirit of the invention, and all the properties or uses are considered to be within the scope of the invention.
It will be understood that when an element is referred to as being "secured to" or "disposed on" another element, it can be directly on the other element or be indirectly on the other element. When an element is referred to as being "connected to" another element, it can be wired or wirelessly connected to the other element for data transfer purposes.
Furthermore, the descriptions in the description of the invention, the claims, and the drawings referring to "first" or "second", etc. are only used for distinguishing between similar objects and are not to be construed as indicating or implying any relative importance or implicitly indicating the number of technical features indicated, i.e. these descriptions are not necessarily used for describing a particular order or sequence. Furthermore, it should be understood that the descriptions may be interchanged under appropriate circumstances in order to describe embodiments of the invention. In the description of the embodiments of the present invention, "a plurality" means two or more unless specifically limited otherwise.
Fig. 1 is a schematic structural diagram of a three-dimensional image floating display device 10 according to an embodiment of the present invention. The floating display device 10 comprises an image projection source 11 and an optical flat plate 104; the image projection source 11 is used for emitting light to form a three-dimensional image 103 to be displayed and transmitting the light forming the three-dimensional image 103 to be displayed to the optical flat plate 104; the optical flat plate 104 is used for receiving light rays forming a three-dimensional image 103 to be displayed and reflecting the light rays in the air to form a three-dimensional floating image 105; wherein the optical flat plate 104 is placed at an inclination with respect to the image projection source 11.
In some embodiments, the tilt angle between the optical flat plate 104 and the image projection source 11 is set to (0,89 °). specifically, when the tilt angle between the optical flat plate 104 and the image projection source 11 is 45 °, the three-dimensional floating image 105 formed in the air after the light emitted from the horizontally disposed image projection source 11 forms the three-dimensional image 103 to be displayed and passes through the floating display device 10 is displayed in a vertical manner.
The three-dimensional image suspension display device emits light rays for forming a three-dimensional image to be displayed through the image projection source, and the light rays form the three-dimensional suspension image in the air after being reflected by the optical flat plate, so that the suspension display of the three-dimensional image is realized.
In some embodiments, image projection source 11 is a three-dimensional image projection source that includes a two-dimensional planar display device 101 and a microlens array 102; wherein, the microlens array 102 is arranged on one side of the two-dimensional plane display device 101 for emitting light, and the distance between the two-dimensional plane display device 101 and the microlens array 102 is set to be equal to or larger than the focal length of the microlens array 102. Alternatively, the two-dimensional flat display device 101 is disposed horizontally, and the microlens array 102 is disposed above the two-dimensional flat display device 101. It is understood that the two-dimensional flat display device 101 may be arranged in other ways. Specifically, the two-dimensional flat display device 101 is used to emit light, and the microlens array 102 receives the light emitted from the two-dimensional display device 101 and adjusts the direction of the light to form a three-dimensional image 103 to be displayed.
In some embodiments, the two-dimensional planar display device 101 may be a liquid crystal display, an OLED, an LED, a projector, or a plasma display. The two-dimensional flat display device 101 is not limited in any way herein.
Fig. 2a, 2b, and 2c are schematic diagrams of a microlens array of an image projection source of a three-dimensional image suspension display device according to an embodiment of the present invention, and as shown in fig. 2a, the microlens array 102 includes a plurality of cylindrical lenses 201, the inclination angles of the cylindrical lenses 201 are set to (0,89 °), and the pitches p of the plurality of cylindrical lenses 201 are set to 0< p <20 mm.
In some embodiments, the microlens array 102 may further include a plurality of round lenses 202, and as shown in fig. 2b, the round lens array formed by the plurality of round lenses 202 may be arranged in a rectangular manner; as shown in fig. 2c, a hexagonal arrangement is also possible, in which the diameter d of the circular lenses 202 is set to 0< d <20mm, and the edge spacing q between two adjacent circular lenses 202 is set to 0< q <8 mm. In the embodiment of the present invention, the shape of the lenses, the arrangement of the lenses, and the number of the lenses in the microlens array are not limited at all.
Fig. 3 is a schematic diagram of an optical flat panel of a three-dimensional image floating display device according to an embodiment of the present invention, and as shown in fig. 3, the optical flat panel 104 includes a first micro mirror array 301 and a second micro mirror array 302, where the first micro mirror array 301 and the second micro mirror array 302 are orthogonally disposed. Specifically, the image projection source 11 emits light to generate the three-dimensional image 103 to be displayed, and the light is transmitted to the first micro mirror array 301 and the second micro mirror array 302 in sequence, and the three-dimensional floating image 105 is formed in the air after the light is reflected by the first micro mirror array 301 and the second micro mirror array 302.
Fig. 4 is an imaging schematic diagram of a three-dimensional image floating display device according to an embodiment of the present invention, as shown in fig. 4, an image projection source 11 emits light rays in two orthogonal directions to form a three-dimensional image 103 to be displayed, and transmits the light rays forming the three-dimensional image to be displayed to an optical flat plate 104, and the optical flat plate 104 receives the light rays forming the three-dimensional image 103 to be displayed and reflects the light rays in the air to form a three-dimensional floating image 105; wherein the three-dimensional image 103 to be displayed and the three-dimensional floating image 105 are symmetrical with respect to the optical flat plate 104.
In some embodiments, the first micro mirror array 301 and the second micro mirror array 302 each include a plurality of micro mirrors disposed in parallel. In the embodiment of the present invention, the number and the shape of the minute mirrors are not limited at all.
Another embodiment of the present invention is a three-dimensional image floating display method, and as shown in fig. 5, the three-dimensional image floating display method includes the following steps:
s1, emitting light through an image projection source to form a three-dimensional image to be displayed, and transmitting the light forming the three-dimensional image to be displayed to an optical flat plate;
s2, receiving the light forming the three-dimensional image to be displayed through the optical flat plate, reflecting the light in the air to form a three-dimensional suspension image, and performing suspension display on the three-dimensional image; wherein the optical flat plate is arranged obliquely relative to the image projection source.
In some embodiments, the tilt angle between the optical flat plate 104 and the image projection source 11 is set to (0,89 ° ]. specifically, when the tilt angle between the optical flat plate 104 and the image projection source 11 is 45 °, the light emitted from the horizontally disposed image projection source 11 forms a three-dimensional floating image 105 formed in the air of the three-dimensional image 103 to be displayed in a vertical manner.
Specifically, in step S1, the image projection source 11 is a three-dimensional image projection source including a two-dimensional flat display device 101 and a microlens array 102; the micro-lens array 102 is arranged on the side of the two-dimensional flat display device 101 emitting light, and the distance between the two-dimensional flat display device 101 and the micro-lens array 102 is set to be equal to or larger than the focal length of the micro-lens array 102. Alternatively, the two-dimensional flat display device 101 is disposed horizontally, and the microlens array 102 is disposed above the two-dimensional flat display device 101. It is understood that the two-dimensional flat display device 101 may be arranged in other ways. Specifically, the two-dimensional flat display device 101 is used to emit light, and the microlens array 102 receives the light emitted from the two-dimensional display device 101 and adjusts the direction of the light to form a three-dimensional image 103 to be displayed.
In some embodiments, the two-dimensional planar display device 101 may be a liquid crystal display, an OLED, an LED, a projector, or a plasma display. The two-dimensional flat display device 101 is not limited in any way herein.
Fig. 2a, 2b, and 2c are schematic diagrams of the microlens array, and as shown in fig. 2a, the microlens array 102 includes a plurality of cylindrical lenses 201, the inclination angles of the cylindrical lenses 201 are set to (0,89 °), and the pitches p of the plurality of cylindrical lenses 201 are set to 0< p <20 mm.
In some embodiments, the microlens array 102 may further include a plurality of round lenses 202, and as shown in fig. 2b, the round lens array formed by the plurality of round lenses 202 may be arranged in a rectangular manner; as shown in fig. 2c, a hexagonal arrangement is also possible, in which the diameter d of the circular lenses 202 is set to 0< d <20mm, and the edge spacing q between two adjacent circular lenses 202 is set to 0< q <8 mm. In the embodiment of the present invention, the shape of the lenses, the arrangement of the lenses, and the number of the lenses in the microlens array are not limited at all.
In step S2, the optical flat panel 104 includes a first micro mirror array 301 and a second micro mirror array 302, wherein the first micro mirror array 301 and the second micro mirror array 302 are disposed orthogonally. Specifically, the image projection source 11 emits light to generate the three-dimensional image 103 to be displayed, and the light is transmitted to the first micro mirror array 301 and the second micro mirror array 302 in sequence, and the three-dimensional floating image 105 is formed in the air after the light is reflected by the first micro mirror array 301 and the second micro mirror array 302. Wherein the three-dimensional image 103 to be displayed and the three-dimensional floating image 105 are symmetrical with respect to the optical flat plate 104.
In some embodiments, the first micro mirror array 301 and the second micro mirror array 302 each include a plurality of micro mirrors disposed in parallel. In the embodiment of the present invention, the number and the shape of the minute mirrors are not limited at all.
The foregoing is a more detailed description of the invention in connection with specific/preferred embodiments and is not intended to limit the practice of the invention to those descriptions. It will be apparent to those skilled in the art that various substitutions and modifications can be made to the described embodiments without departing from the spirit of the invention, and these substitutions and modifications should be considered to fall within the scope of the invention. In the description herein, references to the description of the term "one embodiment," "some embodiments," "preferred embodiments," "an example," "a specific example," or "some examples" or the like are intended to mean that a particular feature, structure, material, or characteristic described in connection with the embodiment or example is included in at least one embodiment or example of the invention.
In this specification, the schematic representations of the terms used above are not necessarily intended to refer to the same embodiment or example. Furthermore, the particular features, structures, materials, or characteristics described may be combined in any suitable manner in any one or more embodiments or examples. Furthermore, various embodiments or examples and features of different embodiments or examples described in this specification can be combined and combined by one skilled in the art without contradiction. Although embodiments of the present invention and their advantages have been described in detail, it should be understood that various changes, substitutions and alterations can be made herein without departing from the scope of the invention as defined by the appended claims.
Moreover, the scope of the present application is not intended to be limited to the particular embodiments of the process, machine, manufacture, composition of matter, means, methods and steps described in the specification. One of ordinary skill in the art will readily appreciate that the above-disclosed, presently existing or later to be developed, processes, machines, manufacture, compositions of matter, means, methods, or steps, that perform substantially the same function or achieve substantially the same result as the corresponding embodiments described herein may be utilized. Accordingly, the appended claims are intended to include within their scope such processes, machines, manufacture, compositions of matter, means, methods, or steps.
Claims (10)
1. A three-dimensional image floating display device is characterized by comprising: an image projection source and an optical flat; wherein the content of the first and second substances,
the image projection source is used for emitting light rays to form a three-dimensional image to be displayed and transmitting the light rays forming the three-dimensional image to be displayed to the optical flat plate;
the optical flat plate is used for receiving light rays forming the three-dimensional image to be displayed and reflecting the light rays in the air to form a three-dimensional suspension image; wherein the optical flat plate is obliquely arranged relative to the image projection source.
2. The three-dimensional image suspension display device according to claim 1, wherein the image projection source is a three-dimensional image projection source comprising a two-dimensional planar display device and a micro-lens array; the micro-lens array is arranged on one side of the two-dimensional plane display device, which emits light rays, and the distance between the two-dimensional plane display device and the micro-lens array is equal to or larger than the focal length of the micro-lens array.
3. The three-dimensional image suspension display device according to claim 1, wherein the tilt angle between the optical flat plate and the image projection source is set to (0,89 ° ].
4. The apparatus according to claim 2, wherein the two-dimensional flat display device is configured to emit light, and the micro-lens array is configured to modulate the direction of the light to form a three-dimensional image to be displayed.
5. The three-dimensional image suspension display device according to claim 2 or 4, wherein the micro lens array comprises a plurality of cylindrical lenses, the inclination angle of the plurality of cylindrical lenses is set to (0,89 ° ], and the pitch p of the plurality of cylindrical lenses is set to 0< p <20 mm.
6. The three-dimensional image suspension display device according to claim 2 or 4, wherein the micro lens array comprises a plurality of round lenses, and the round lens array formed by the round lenses is arranged in a rectangular arrangement or a hexagonal arrangement; the diameter d of the round lens is set to be 0< d <20mm, and the edge distance q between two adjacent round lenses is set to be 0< q <8 mm.
7. The three-dimensional image suspension display device according to claim 1, wherein the optical flat plate comprises a first micro mirror array and a second micro mirror array, wherein the first micro mirror array and the second micro mirror array are orthogonally arranged.
8. A three-dimensional image suspension display method is characterized by comprising the following steps:
s1, emitting light through an image projection source to form a three-dimensional image to be displayed, and transmitting the light forming the three-dimensional image to be displayed to an optical flat plate;
s2, receiving the light forming the three-dimensional image to be displayed through the optical flat plate, reflecting the light in the air to form a three-dimensional suspension image, and performing suspension display on the three-dimensional image; wherein the optical flat plate is arranged obliquely relative to the image projection source.
9. The three-dimensional image suspension display method according to claim 8, wherein in step S1, the image projection source is a three-dimensional image projection source comprising a two-dimensional flat display device and a micro-lens array; the micro lens array is arranged on one side of the two-dimensional plane display device, which emits light rays, and the distance between the two-dimensional plane display device and the micro lens array is set to be equal to or larger than the focal length of the micro lens array.
10. The three-dimensional image suspension display method according to claim 8, wherein in step S2, the optical flat panel includes a first micro mirror array and a second micro mirror array; the first micro reflector array and the second micro reflector array are arranged in an orthogonal mode, the image projection source emits light to form the three-dimensional image to be displayed, the light is transmitted to the first micro reflector array and the second micro reflector array in sequence, and the first micro reflector array and the second micro reflector array reflect the light and then form the three-dimensional suspended image in the air.
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