CN111812859A - Holographic display device - Google Patents

Abstract

The application provides a holographic display device, including support frame, arc transparency, display screen subassembly, photomask, translucent substrate and light emitting source. This application is through setting up translucent substrate and photomask respectively in the place ahead of display screen subassembly, when the user stands in arc transparency the place ahead, the sight passes photomask to translucent substrate earlier, then the sight reflects to the photomask through translucent substrate, because be provided with the light emitting source in the holding chamber, make the illumination intensity in the holding chamber great than outside illumination intensity, the diffuse reflection of light that the light emitting source sent through the photomask makes the sight can't launch from holding the chamber, and the light that the cooperation translucent substrate transmission display screen subassembly launched, reach the holographic image effect that the display picture suspends in the holding chamber. Therefore, the holographic display device can effectively solve the limitation that the traditional holographic equipment needs to be used in a dark environment through the luminous source, cancels the structural design of the inclined semi-reflective glass and reduces the occupied area.

Description

Holographic display device

technical field

The present application belongs to the technical field of holographic projection, and more particularly, relates to a holographic display device.

Background technique

At present, holographic equipment is usually installed with inclined semi-reflective glass or holographic film in the middle of the holographic cabinet, and display equipment such as a display screen or a projector is installed on the top of the holographic cabinet to achieve 3D imaging effects according to the principles of light reflection and diffraction. Due to reflection and diffraction, the intensity of light will be weakened. In order to obtain a better imaging effect, it is required that the light of the external environment should not be too strong; moreover, the inclined semi-reflective glass or holographic film requires a large area, which leads to holographic There are many restrictions on the use of the equipment, and the adaptability is poor.

SUMMARY OF THE INVENTION

The purpose of the embodiments of the present application is to provide a holographic display device to solve the problems in the related art that the holographic equipment needs to be used in an environment with weak external light, and has a large footprint and poor adaptability.

In order to achieve the above purpose, the technical solutions adopted in the embodiments of the present application are:

A holographic display device is provided, comprising a support frame, an arc-shaped transparent sheet mounted on one end of the support frame, and a display screen assembly mounted on the other end of the support frame, the support frame, the arc-shaped transparent sheet and the The display screen assembly is enclosed into an accommodating chamber; the holographic display device further includes a light-shielding film for diffusely reflecting the light in the accommodating chamber, and for reflecting the light emitted by the display screen assembly to form a holographic image a translucent substrate and a light-emitting source for illuminating the accommodating chamber; the light-shielding film is mounted on the inner peripheral surface of the arc-shaped transparent sheet facing the display screen assembly, and the translucent substrate is mounted on the The display screen assembly faces the side of the light-shielding film, and the light-emitting source is mounted on the support frame.

In one embodiment, the support frame includes a frame body and two cover plates respectively covering two opposite open ends of the accommodating chamber, and the two cover plates are respectively mounted on both ends of the frame body, The frame body is provided with a through hole connecting the display screen assembly and the translucent substrate; the arc-shaped transparent sheet, the light-shielding film and the translucent substrate are all arranged on one side of the frame body , the display screen assembly is arranged on the other side of the frame body, and the light-emitting source is installed on the cover plate.

In one embodiment, the light-emitting source includes light-emitting units respectively mounted on the cover plates, and each of the light-emitting units is electrically connected to the display screen assembly.

In one embodiment, the display screen assembly includes a display screen body mounted on the support frame and a main control unit for controlling the display screen body; the main control unit is electrically connected to the display screen body.

In one embodiment, the holographic display device further includes a back cover for covering the display screen assembly, and the back cover is mounted on the support frame.

In one embodiment, a plurality of heat dissipation holes are opened on the rear case.

In one embodiment, the rear case is in an arc shape, the cross-section of the arc-shaped transparent sheet and the cross-section of the rear case are both semicircular, and the cross-sectional area of the arc-shaped transparent sheet is equal to the cross-sectional area of the arc-shaped transparent sheet. The cross-sectional area of the rear shell.

In one embodiment, the light-shielding film is a honeycomb-shaped film layer.

In one embodiment, the holographic display device further includes a touch panel for adjusting the image angle of the display screen assembly; the touch panel is mounted on the support frame, and the touch panel is connected to the The display assembly is electrically connected.

In one embodiment, the holographic display device further comprises a support table supporting the support frame and a drive assembly for driving the support table to rotate; the drive assembly is connected with the support table.

The above-mentioned one or more technical solutions in the embodiments of the present application have at least one of the following technical effects: in the present application, the translucent substrate and the light-shielding film are respectively arranged in front of the display screen assembly, when the user stands in front of the curved transparent sheet , the line of sight first passes through the light-shielding film to the translucent substrate, and then the line of sight is reflected to the light-shielding film through the translucent substrate. Since the light-emitting source is arranged in the accommodating chamber, the illumination intensity in the accommodating chamber is higher than that of the outside. The light emitted by the light source is diffusely reflected by the light-shielding film, so that the line of sight cannot be emitted from the accommodating chamber, and the translucent substrate transmits the light emitted by the display screen assembly to achieve a holographic image effect in which the display screen is suspended in the accommodating chamber. Therefore, the holographic display device can effectively solve the limitation that the traditional holographic equipment needs to be used in a dark environment through the light source, cancel the structural design of the inclined semi-reflective glass, and reduce the floor space.

Description of drawings

In order to illustrate the technical solutions in the embodiments of the present application more clearly, the following briefly introduces the accompanying drawings that are used in the description of the embodiments or exemplary technologies. Obviously, the drawings in the following description are only for the present application. In some embodiments, for those of ordinary skill in the art, other drawings can also be obtained according to these drawings without any creative effort.

FIG. 1 is a schematic three-dimensional structure diagram of a holographic display device provided by an embodiment of the present application;

2 is an exploded schematic diagram of a holographic display device provided by an embodiment of the present application;

3 is a schematic cross-sectional view of a front view of a holographic display device provided in an embodiment of the present application;

4 is a schematic three-dimensional structural diagram of a support frame provided by an embodiment of the present application;

FIG. 5 is a schematic cross-sectional view of a top view of a holographic display device according to an embodiment of the present application.

Among them, the main symbols of each accompanying drawing in the figure are:

1-support frame; 11-frame body; 110-through hole; 12-cover plate; 13-touch panel;

2-display assembly; 21-display body; 22-main control unit;

3- rear shell; 30- cooling hole;

4-Arc-shaped transparent sheet; 5-Accommodating chamber; 6-Shading film; 7-Translucent substrate; 8-Light-emitting unit.

Detailed ways

In order to make the technical problems, technical solutions and beneficial effects to be solved by the present application clearer, the present application will be described in further detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are only used to explain the present application, but not to limit the present application.

It should be noted that when an element is referred to as being "fixed to" or "disposed on" another element, it can be directly on the other element or indirectly on the other element. When an element is referred to as being "connected to" another element, it can be directly connected to the other element or indirectly connected to the other element.

Furthermore, the terms "first", "second" and "third" are used for descriptive purposes only, and should not be construed as indicating or implying relative importance or implying the number of indicated technical features. Thus, a feature defined as "first", "second", "third" may expressly or implicitly include one or more of that feature. In the description of the present application, "plurality" means two or more, unless otherwise expressly and specifically defined. "Several" means one or more than one, unless expressly specifically defined otherwise.

In the description of this application, it should be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", " The orientation or positional relationship indicated by "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", etc. is based on the orientation or positional relationship shown in the drawings, and is only for convenience Describe the application and simplify the description without indicating or implying that the referred device or element must have a particular orientation, be constructed and operate in a particular orientation, and therefore should not be construed as limiting the application.

In the description of this application, it should be noted that, unless otherwise expressly specified and limited, the terms "installed", "connected" and "connected" should be understood in a broad sense, for example, it may be a fixed connection or a detachable connection Connection, or integral connection; may be mechanical connection or electrical connection; may be direct connection or indirect connection through an intermediate medium, may be internal communication between two elements or an interaction relationship between the two elements. For those of ordinary skill in the art, the specific meanings of the above terms in this application can be understood according to specific situations.

Reference throughout this specification to "one embodiment" or "an embodiment" means that a particular feature, structure or characteristic described in connection with the embodiment is included in at least one embodiment of the present application. Thus, the phrases "in one embodiment" or "in some embodiments" appear in various places throughout the specification, not all referring to the same embodiment. Furthermore, the particular features, structures or characteristics may be combined in any suitable manner in one or more embodiments.

Referring to FIGS. 1 to 3 , the holographic display device provided by the present application will now be described. The holographic display device comprises a support frame 1, an arc-shaped transparent sheet 4 mounted on one end of the support frame 1 and a display screen assembly 2 mounted on the other end of the support frame 1. The support frame 1, the arc-shaped transparent sheet 4 and the display screen assembly 2 enclose A closed accommodating chamber 5 is synthesized. The holographic display device also includes a light-shielding film 6 for diffusing the light in the accommodating chamber 5 to block the light inside the accommodating chamber 5, and a light-shielding film 6 for transmitting the light emitted from the display screen assembly 2 to form a holographic image. A translucent substrate 7 and a light source (not shown) for illuminating the accommodating chamber 5; the light-shielding film 6 is mounted on the inner peripheral surface of the arc-shaped transparent sheet 4 facing the display screen assembly 2, and the translucent substrate 7 is mounted on the display On the side of the screen assembly 2 facing the light shielding film 6 , the light source is mounted on the support frame 1 . Wherein, the semi-transparent substrate 7 can be semi-reflective and semi-transparent glass; the arc-shaped transparent sheet 4 can be made of transparent glass, which is not limited here. In this structure, by disposing the translucent substrate 7 and the light-shielding film 6 respectively in front of the display screen assembly 2, when the user stands in front of the arc-shaped transparent sheet 4, the line of sight first passes through the light-shielding film 6 to the translucent substrate 7, and then the line of sight passes through the translucent substrate 7. The translucent substrate 7 is reflected to the light-shielding film 6. Since the light-emitting source is arranged in the accommodating chamber 5, the illumination intensity in the accommodating chamber 5 is higher than that of the outside, and the light emitted by the light-emitting source is diffused by the light-shielding film 6. The reflection prevents the line of sight from being emitted from the accommodating chamber 5 , and cooperates with the translucent substrate 7 to transmit the light emitted by the display screen assembly 2 to achieve a holographic image effect in which the display screen is suspended in the accommodating chamber 5 . Therefore, the holographic display device can effectively solve the limitation that the traditional holographic equipment needs to be used in a dark environment through the light source, cancel the structural design of the inclined semi-reflective glass, and reduce the floor space.

In one embodiment, please refer to FIG. 3 and FIG. 4 , as a specific implementation manner of the holographic display device provided by the present application, the support frame 1 includes a frame body 11 and a frame body 11 and two opposite opening ends respectively covering the accommodating chamber 5 . Two cover plates 12, the two cover plates 12 are respectively installed on both ends of the frame body 11, the frame body 11 is provided with through holes 110 connecting the display screen assembly 2 and the translucent substrate 7; the arc-shaped transparent sheet 4, the light shielding film 6 and the translucent substrate 7 are arranged on one side of the frame body 11 , the display screen assembly 2 is arranged on the other side of the frame body 11 , and the light source is installed on the cover plate 12 . With this structure, the display screen assembly 2 and the translucent substrate 7 can be respectively supported by the frame body 11, which is convenient for disassembly and assembly. The two cover plates 12 can cover the opposite two open ends of the arc-shaped transparent sheet 4, and cooperate with the translucent substrate 7 to cover the other open end of the arc-shaped transparent sheet 4, so that the sealing of the accommodating chamber 5 can be realized, and the Certain shading, waterproof, dustproof and other functions. The through hole 110 allows the image light displayed by the display screen assembly 2 to pass through, and then passes through the translucent substrate 7 to form a holographic image.

In one embodiment, first grooves are correspondingly formed on the two cover plates 12, and both ends of the translucent substrate 7 can be respectively inserted into the corresponding first grooves for fixing; alternatively, the translucent substrate 7 can also be glued It is connected to the frame body 11; or it cooperates with the first groove to play a double fixing role; It can be inserted into the corresponding first card groove to realize fixing; or cooperate with the first groove to play a double fixing role. The two cover plates 12 are correspondingly provided with first arc-shaped grooves adapted to the cross-section of the arc-shaped transparent sheet 4, and both ends of the arc-shaped transparent sheet 4 can be respectively extended into the corresponding first arc-shaped grooves for fixing. Of course, in other embodiments, the connection between the arc-shaped transparent sheet 4 and the translucent substrate 7 and the support frame 1 can also be adjusted according to actual needs, which is not limited here.

In one embodiment, please refer to FIG. 2 and FIG. 3 , as a specific implementation manner of the holographic display device provided in the present application, the light-emitting source includes light-emitting units 8 installed on each cover plate 12 respectively, and each light-emitting unit 8 is connected to The display screen assembly 2 is electrically connected. In this structure, by arranging the light-emitting units 8 on each cover plate 12 respectively, the light intensity in the accommodating chamber 5 can be made larger than the light intensity of the external environment, so that the internal light cannot be transparent from the arc after being diffusely reflected by the light-shielding film 6 . The sheet 4 is ejected, which is convenient for forming a holographic image, which is helpful for the use of the holographic display device in a dark environment, and has good adaptability. The light-emitting units 8 on each cover plate 12 are arranged in a one-to-one correspondence, forming a symmetrical distribution structure, and the light uniformity in the accommodating chamber 5 is good. In other embodiments, a plurality of light-emitting units 8 can also be provided on one cover plate 12 alone; the arrangement and quantity of the light-emitting units 8 on each cover plate 12 can be adjusted according to actual needs; It can be controlled by a separate power supply, which is not uniquely limited here.

In one embodiment, please refer to FIG. 2 and FIG. 3 , as a specific implementation of the holographic display device provided by the present application, the display screen assembly 2 includes a display screen body 21 mounted on the support frame 1 and a control display screen body The main control unit 22 of 21 ; the display screen body 21 is arranged between the translucent substrate 7 and the main control unit 22 , and the main control unit 22 is electrically connected to the display screen body 21 . In this structure, the display screen body 21 is used to display images, and the main control unit 22 is used to control the display screen body 21 , such as controlling the display screen body 21 to display different images, and providing working current for the display screen body 21 .

In one embodiment, the depth of the through hole 110 is equal to the thickness of the display screen body 21 , the display screen body 21 extends into the through hole 110 and can form a fit with the translucent substrate 7 , and the display screen body 21 can be fixed by locking screws on the frame body 11 . This structure, on the one hand, is conducive to the support and fixation of the display screen body 21;

In one embodiment, the bottom of the frame body 11 is provided with a second card slot, and the bottom of the display screen body 21 can extend into the second card slot for positioning and installation; A third card slot is provided, and the two ends of the display screen body 21 are respectively extended into the corresponding third card slot to realize positioning and installation; Fixing can improve the fixing effect of the display screen body 21; alternatively, the two cover plates 12 are correspondingly provided with second grooves, and the two ends of the display screen body 21 are respectively inserted into the corresponding second grooves to achieve fixing; or The display screen body 21 is directly bonded to the frame body 11; or cooperates with the second groove to achieve double fixing effect. Of course, in other embodiments, the connection between the display screen body 21 and the support frame 1 can also be adjusted according to actual needs, which is not limited here.

In one embodiment, please refer to FIG. 1 and FIG. 2 , as a specific implementation manner of the holographic display device provided by the present application, the holographic display device further includes a rear case 3 for covering the display screen assembly 2 , and the rear case 3 is installed on the support frame 1. With this structure, the display screen assembly 2 can be covered by the rear case 3, thereby improving the use safety and aesthetics of the holographic display device. Wherein, the two cover plates 12 can be respectively provided with second arc-shaped grooves, and the two ends of the rear shell 3 can respectively extend into the corresponding second arc-shaped grooves for fixing. In other embodiments, the connection between the rear shell 3 and the support frame 1 can also be adjusted according to actual needs, which is not limited herein.

In one embodiment, please refer to FIG. 1 and FIG. 2 , as a specific implementation manner of the holographic display device provided in the present application, the rear case 3 is provided with a plurality of heat dissipation holes 30 . With this structure, the heat generated by the display screen body 21 and the main control unit 22 can be expelled in time through the heat dissipation holes 30, thereby prolonging the service life of the holographic display device. In other embodiments, the holographic display device may further include a cooling fan for cooling the display screen assembly 2 , the cooling fan may be installed on the support frame 1 , and the cooling fan is electrically connected to the main control unit 22 . The cooling effect of the display screen assembly 2 can be improved by the cooling fan. The cooling fan can be disposed opposite to the cooling holes 30 to form air convection, and further improve the cooling effect.

In one embodiment, please refer to FIG. 5 , as a specific implementation of the holographic display device provided by the present application, the rear case 3 is in an arc shape, and the cross section of the arc transparent sheet 4 and the cross section of the rear case 3 are both The cross-sectional area of the semicircular, arc-shaped transparent sheet 4 is equal to the cross-sectional area of the rear case 3 . In this structure, the connection between the arc-shaped transparent sheet 4 and the rear shell 3 can form a complete cylindrical structure. When the user views the screen displayed by the display screen assembly 2 from the front of the arc-shaped transparent sheet 4, the semicircular mirror image formed by the translucent substrate 7 and the light shielding film 6 can be matched with the semi-cylindrical arc-shaped transparent sheet 4 and the semi-cylindrical rear case 3. The visual illusion of a complete cylinder is formed, and the screen seen by the user is suspended in the center of the cylinder, and the holographic image effect is better. In other embodiments, the rear case 3 may also be in other configurations, such as a square shape, which is not limited herein.

In one embodiment, as a specific implementation of the holographic display device provided in the present application, the light shielding film 6 is a honeycomb-shaped film layer. With this structure, the honeycomb-shaped light-shielding film 6 has better diffuse reflection effect on light, thereby facilitating the formation of a clear holographic image. In other embodiments, the light-shielding film 6 may also be a film layer with other configurations, which is not limited herein.

In one embodiment, please refer to FIG. 1 and FIG. 2 , as a specific implementation manner of the holographic display device provided by the present application, the holographic display device further includes a touch panel 13 for adjusting the image angle of the display screen assembly 2; The touch panel 13 is mounted on the support frame 1 , and the touch panel 13 is electrically connected to the display screen assembly 2 . With this structure, the image angle of the display screen assembly 2 can be rotated and adjusted by 360 degrees through the touch panel 13 , so that the image can be viewed from all angles.

In one embodiment, as a specific implementation of the holographic display device provided by the present application, the holographic display device further includes a support table (not shown) for supporting the above-mentioned support frame 1 and a drive assembly (not shown in the figure) for driving the support table to rotate. Not shown); the drive assembly is connected to the support table. With this structure, when the driving component drives the support table to rotate, it can also drive the support frame 1 to rotate, thereby enabling users to watch from multiple angles. Wherein, the drive assembly may be a motor, and the motor can directly drive the support table to rotate; or the drive assembly and the support table are connected through a gear assembly, thereby improving the transmission efficiency, which is not limited here.

The above descriptions are only optional embodiments of the present application, and are not intended to limit the present application. Any modifications, equivalent replacements and improvements made within the spirit and principles of the present application shall be included in the protection of the present application. within the range.

Claims (10)

1. The holographic display device is characterized in that: comprising a support frame, an arc-shaped transparent sheet installed on one end of the support frame and a display screen assembly installed at the other end of the support frame, the support frame, the arc-shaped transparent sheet The sheet and the display screen assembly are enclosed into an accommodating chamber; the holographic display device further comprises a light shielding film for diffusing the light in the accommodating chamber to block the light in the accommodating chamber, a translucent substrate for transmitting the light emitted by the display screen assembly to form a holographic image and a light-emitting source for illuminating the accommodating chamber; the light shielding film is installed on the curved transparent sheet and faces the display screen On the inner peripheral surface of the assembly, the translucent substrate is mounted on the side of the display screen assembly facing the light-shielding film, and the light-emitting source is mounted on the support frame. 2 . The holographic display device according to claim 1 , wherein the support frame comprises a frame body and two cover plates respectively covering two opposite open ends of the accommodating chamber, and the two cover plates They are respectively installed on both ends of the frame body, and the frame body is provided with through holes connecting the display screen assembly and the translucent substrate; the arc-shaped transparent sheet, the light-shielding film and the translucent substrate The substrates are arranged on one side of the frame body, the display screen assembly is arranged at the other side of the frame body, and the light-emitting source is mounted on the cover plate. 3 . The holographic display device according to claim 2 , wherein the light-emitting source comprises light-emitting units respectively mounted on the cover plates, and each of the light-emitting units is electrically connected to the display screen assembly. 4 . . 4. The holographic display device according to claim 1, wherein the display screen assembly comprises a display screen body mounted on the support frame and a main control unit for controlling the display screen body; the main control The unit is electrically connected with the display screen body. 5 . The holographic display device according to claim 1 , wherein the holographic display device further comprises a back cover for covering the display screen assembly, and the back cover is mounted on the support frame. 6 . 6 . The holographic display device of claim 5 , wherein a plurality of heat dissipation holes are formed on the rear case. 7 . 7 . The holographic display device according to claim 5 , wherein the rear case is in an arc shape, the cross section of the arc transparent sheet and the cross section of the rear case are both semicircular, and the The cross-sectional area of the arc-shaped transparent sheet is equal to the cross-sectional area of the rear case. 8 . The holographic display device according to claim 1 , wherein the light-shielding film is a honeycomb-shaped film layer. 9 . 9 . The holographic display device according to claim 1 , wherein: the holographic display device further comprises a touch panel for adjusting the image angle of the display screen assembly; the touch panel Installed on the support frame, the touch panel is electrically connected with the display screen assembly. 10. The holographic display device according to any one of claims 1-7, wherein the holographic display device further comprises a support table for supporting the support frame and a drive assembly for driving the support table to rotate; The drive assembly is connected to the support table.

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