CN111812859A

CN111812859A - Holographic display device

Info

Publication number: CN111812859A
Application number: CN202010299434.1A
Authority: CN
Inventors: 陈永新; 周健; 曾敬根
Original assignee: Shenzhen Iwin Visual Technology Co ltd
Current assignee: Shenzhen Iwin Visual Technology Co ltd
Priority date: 2020-04-16
Filing date: 2020-04-16
Publication date: 2020-10-23

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

Background

At present, holographic equipment is generally that semi-reflective glass or a holographic film which is obliquely arranged is installed in the middle of a holographic cabinet, a display screen or a projector and other display equipment are arranged on the top of the holographic cabinet, and a 3D imaging effect is achieved according to the reflection and diffraction principles of light rays. Since reflection and diffraction cause the intensity of light to be weakened, in order to obtain a better imaging effect, the light of the external environment is required not to be too strong; moreover, the inclined semi-reflective glass or holographic film requires a large floor space, which results in a large number of limitations in the use of the holographic device and poor adaptability.

Disclosure of Invention

An object of the embodiments of the present application is to provide a holographic display device, so as to solve the problems that a holographic device in the related art needs to be used in an environment with weak external light, and has a large occupied area and poor adaptability.

In order to achieve the above purpose, the embodiment of the present application adopts the following technical solutions:

the holographic display device comprises a support frame, an arc-shaped transparent sheet and a display screen assembly, wherein the arc-shaped transparent sheet is arranged at one end of the support frame, the display screen assembly is arranged at the other end of the support frame, and the support frame, the arc-shaped transparent sheet and the display screen assembly form an accommodating chamber in a surrounding mode; the holographic display device also comprises a shading film for diffusely reflecting light rays in the accommodating chamber, a semi-transparent substrate for reflecting the light rays emitted by the display screen component to form a holographic image and a light emitting source for irradiating the accommodating chamber; the shading film is arranged on the inner circumferential surface of the arc-shaped transparent sheet facing the display screen assembly, the semitransparent substrate is arranged on the side surface of the display screen assembly facing the shading film, and the light emitting source is arranged on the support frame.

In one embodiment, the supporting frame comprises a frame body and two cover plates respectively covering two opposite open ends of the accommodating chamber, the two cover plates are respectively installed at two ends of the frame body, and a through hole for communicating the display screen assembly and the translucent substrate is formed in the frame body; the arc-shaped transparent sheet, the shading film and the semitransparent 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 arranged on the cover plate.

In one embodiment, the light 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 comprises 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 with the display screen body.

In one embodiment, the holographic display device further comprises a rear case for covering the display screen assembly, the rear case being mounted on the support frame.

In one embodiment, the rear housing is formed with a plurality of heat dissipation holes.

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

In one embodiment, the light shielding film is a film layer in a honeycomb shape.

In one embodiment, the holographic display device further comprises a touch pad for adjusting an image angle of the display screen assembly; the touch pad is arranged on the support frame and is electrically connected with the display screen assembly.

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

One or more technical solutions in the embodiments of the present application have at least one of the following technical effects: 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.

Drawings

In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed to be used in the embodiments or exemplary technical descriptions will be briefly described below, and it is obvious that the drawings in the following description are only some embodiments of the present application, and it is obvious for those skilled in the art to obtain other drawings without creative efforts.

Fig. 1 is a schematic perspective view of a holographic display device provided in an embodiment of the present application;

FIG. 2 is an exploded view of a holographic display device provided by an embodiment of the present application;

FIG. 3 is a schematic cross-sectional view of a front view of a holographic display provided by embodiments of the present application;

fig. 4 is a schematic perspective view of a support frame according to an embodiment of the present disclosure;

fig. 5 is a schematic cross-sectional view of a top view of a holographic display device provided by embodiments of the present application.

Wherein, in the drawings, the reference numerals are mainly as follows:

1-a support frame; 11-a frame body; 110-a via; 12-a cover plate; 13-a touch pad;

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

3-rear shell; 30-heat dissipation holes;

4-arc transparent sheet; 5-an accommodating chamber; 6-a light-shielding film; 7-a translucent substrate; 8-light emitting unit.

Detailed Description

In order to make the technical problems, technical solutions and advantageous effects to be solved by the present application clearer, the present application is further described in detail below with reference to the accompanying drawings and embodiments. It should be understood that the specific embodiments described herein are merely illustrative of the present application and are not intended to limit the present application.

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 directly connected to the other element or be indirectly connected to the other element.

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

In the description of the present application, it is to be understood that the terms "center", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", and the like, indicate orientations or positional relationships based on those shown in the drawings, and are used only for convenience in describing the present application and for simplicity in description, and do not indicate or imply that the referenced devices or elements must have a particular orientation, be constructed and operated in a particular orientation, and thus, are not to be construed as limiting the present application.

In the description of the present application, it is to be noted that, unless otherwise explicitly specified or limited, the terms "mounted," "connected," and "connected" are to be construed broadly, e.g., as meaning either a fixed connection, a removable connection, or an integral connection; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meaning of the above terms in the present application can be understood by those of ordinary skill in the art as appropriate.

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 appearances of the phrases "in one embodiment" or "in some embodiments" in various places throughout this specification are not necessarily 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 fig. 1 to 3, a holographic display device provided by the present application will now be described. The holographic display device comprises a support frame 1, an arc transparent sheet 4 arranged at one end of the support frame 1 and a display screen assembly 2 arranged at the other end of the support frame 1, wherein the support frame 1, the arc transparent sheet 4 and the display screen assembly 2 are enclosed into a closed accommodating chamber 5. The holographic display device further comprises a light shielding film 6 for diffusely reflecting the light in the accommodating chamber 5 to block the light inside the accommodating chamber 5, a semi-transparent substrate 7 for transmitting the light emitted from the display screen assembly 2 to form a holographic image, and a light emitting source (not shown) for irradiating the accommodating chamber 5; the shading film 6 is arranged on the inner circumferential surface of the arc-shaped transparent sheet 4 facing the display screen assembly 2, the semitransparent substrate 7 is arranged on the side surface of the display screen assembly 2 facing the shading film 6, and the light emitting source is arranged on the support frame 1. Wherein, the translucent substrate 7 can be a semi-reflective and semi-transparent glass; the arc-shaped transparent sheet 4 may be made of transparent glass, and is not limited herein. According to the structure, the semi-transparent substrate 7 and the shading film 6 are respectively arranged in front of the display screen assembly 2, when a user stands in front of the arc-shaped transparent sheet 4, the sight line firstly penetrates through the shading film 6 to the semi-transparent substrate 7, then the sight line is reflected to the shading film 6 through the semi-transparent substrate 7, due to the fact that the light emitting source is arranged in the accommodating chamber 5, the illumination intensity in the accommodating chamber 5 is larger than that of the outside, light emitted by the light emitting source is subjected to diffuse reflection through the shading film 6, the sight line cannot be emitted from the accommodating chamber 5, the light emitted by the display screen assembly 2 is transmitted through the semi-transparent substrate 7, and the holographic image effect that a display picture is suspended in. 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.

In an embodiment, please refer to fig. 3 and 4, as a specific implementation of the holographic display device provided in the present application, the supporting frame 1 includes a frame 11 and two cover plates 12 respectively covering two opposite open ends of the accommodating chamber 5, the two cover plates 12 are respectively installed at two ends of the frame 11, and the frame 11 is provided with a through hole 110 for communicating the display screen assembly 2 and the translucent substrate 7; the arc-shaped transparent sheet 4, the shading film 6 and the semitransparent 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 emitting source is arranged on the cover plate 12. This structure can support display screen subassembly 2 and translucent substrate 7 respectively through framework 11, the dismouting of being convenient for. Two apron 12 can cover two relative open ends of arc transparency 4, and the cooperation translucent substrate 7 covers another open end of arc transparency 4, can realize holding chamber 5's sealed, plays certain shading, waterproof, effect such as dustproof. The through hole 110 allows the image light displayed by the display screen assembly 2 to pass through, and forms a holographic image after passing through the translucent substrate 7.

In one embodiment, the two cover plates 12 are correspondingly provided with first grooves, and two ends of the translucent substrate 7 can respectively extend into the corresponding first grooves to realize fixation; alternatively, the translucent substrate 7 may be bonded to the frame 11; or the first groove is matched with the second groove to play a double fixing role; or, the two opposite sides of the frame body 11 are provided with first clamping grooves in the vertical reverse direction, and the two ends of the semitransparent substrate 7 respectively extend into the corresponding first clamping grooves to realize fixation; or to cooperate with the first recess to provide a dual securing function. The two cover plates 12 are correspondingly provided with first arc-shaped grooves corresponding to the cross sections of the arc-shaped transparent sheets 4, and the two ends of each arc-shaped transparent sheet 4 can respectively extend into the corresponding first arc-shaped grooves to be fixed. Of course, in other embodiments, the connection between the arc-shaped transparent sheet 4 and the translucent substrate 7 and the supporting frame 1 can also be adjusted according to actual needs, and is not limited herein.

In one embodiment, referring to fig. 2 and 3, as an embodiment of the holographic display device provided by the present application, the light source includes light emitting units 8 respectively mounted on the cover plates 12, and each light emitting unit 8 is electrically connected to the display screen assembly 2. This structure through set up luminescence unit 8 respectively on each apron 12, can make the light intensity in the accommodation chamber 5 be greater than the light intensity of external environment for inside light can't follow arc transparency 4 and jet out after the photomask 6 produces diffuse reflection, is convenient for form holographic image, helps holographic display device to use under the dark surrounds, and adaptability is good. The light emitting units 8 on the cover plates 12 are arranged in a one-to-one correspondence manner to form a symmetrical distribution structure, and the light uniformity in the accommodating chamber 5 is good. In other embodiments, several light emitting units 8 may be separately disposed on one cover plate 12; the arrangement mode, the number and the like of the light-emitting units 8 on each cover plate 12 can be adjusted according to actual needs; each light emitting unit 8 may be controlled by a separate power source, which is not limited herein.

In one embodiment, referring to fig. 2 and 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 supporting frame 1 and a main control unit 22 for controlling the display screen body 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 with the display screen body 21. In this structure, the display body 21 is used for displaying images, and the main control unit 22 is used for controlling the display body 21, for example, controlling the display body 21 to display different images, and providing working current for the display 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 be attached to the translucent substrate 7, and the display screen body 21 can be fixed on the frame 11 by a locking screw. On one hand, the structure is beneficial to supporting and fixing the display screen body 21; on the other hand, the display screen body 21 is inserted into the through hole 110, so that the occupied area of the display screen body 21 is reduced.

In one embodiment, the bottom of the frame 11 is provided with a second slot, and the bottom of the display screen body 21 can extend into the second slot to realize positioning and installation; or, third clamping grooves are vertically formed in two opposite side walls of the frame body 11, and two ends of the display screen body 21 respectively extend into the corresponding third clamping grooves to realize positioning and installation; or the second clamping groove and the third clamping groove are arranged simultaneously, so that the display screen body 21 can be fixed at multiple sides simultaneously, and the fixing effect on the display screen body 21 can be improved; or, the two cover plates 12 are correspondingly provided with second grooves, and two ends of the display screen body 21 respectively extend into the corresponding second grooves to realize fixation; or the display screen body 21 is directly adhered to the frame body 11; or with the cooperation of second recess, realize dual fixed effect. Of course, in other embodiments, the connection between the display screen body 21 and the support frame 1 may also be adjusted according to actual needs, and is not limited herein.

In an embodiment, referring to fig. 1 and fig. 2, as a specific implementation 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 mounted on the supporting frame 1. According to the structure, the display screen component 2 can be covered through the rear shell 3, and the use safety and the attractiveness of the holographic display device are improved. Wherein, two cover plates 12 can be respectively provided with a second arc-shaped groove correspondingly, and two ends of the rear shell 3 can be respectively extended into the corresponding second arc-shaped grooves to realize fixation. In other embodiments, the connection between the rear shell 3 and the supporting frame 1 can also be adjusted according to actual needs, and is not limited herein.

In an embodiment, referring to fig. 1 and fig. 2, as a specific implementation of the holographic display device provided by the present application, a plurality of heat dissipation holes 30 are formed on the rear case 3. With the structure, the heat generated by the display screen body 21 and the main control unit 22 can be discharged in time through the heat dissipation holes 30, and the service life of the holographic display device is further prolonged. In other embodiments, the holographic display device may further include a heat dissipation fan for dissipating heat from the display panel assembly 2, and the heat dissipation fan may be mounted on the support frame 1 and electrically connected to the main control unit 22. The heat radiation effect to the display screen component 2 can be improved through the heat radiation fan. The heat dissipation fan may be disposed opposite to the heat dissipation holes 30 to form air convection, thereby further improving the heat dissipation effect.

In one embodiment, referring to fig. 5, as a specific implementation of the holographic display device provided by the present application, the rear shell 3 is arc-shaped, the cross section of the arc-shaped transparent sheet 4 and the cross section of the rear shell 3 are both semi-circular, and the cross-sectional area of the arc-shaped transparent sheet 4 is equal to the cross-sectional area of the rear shell 3. In the structure, the arc-shaped transparent sheet 4 is connected with the rear shell 3 to form a complete cylinder structure. When a user watches the picture displayed by the display screen assembly 2 from the front of the arc-shaped transparent sheet 4, the semi-circular mirror image formed by the semi-transparent substrate 7 and the shading film 6 can form a complete cylinder visual false image with the semi-cylindrical arc-shaped transparent sheet 4 and the semi-cylindrical rear shell 3, the picture seen by the user is suspended in the center of the cylinder, and the holographic image effect is good. In other embodiments, the rear housing 3 may have other configurations, such as a square shape, etc., and is not limited herein.

In one embodiment, the light shielding film 6 is a honeycomb-shaped film layer as a specific embodiment of the holographic display device provided in the present application. With the structure, the cellular shading film 6 has good diffuse reflection effect on light rays, thereby being convenient for forming clear holographic images. In other embodiments, the light shielding film 6 may be a film layer with other configurations, which is not limited herein.

In one embodiment, please refer to fig. 1 and 2, as an embodiment of the holographic display device provided in the present application, the holographic display device further includes a touch pad 13 for adjusting an image angle of the display screen assembly 2; the touch pad 13 is mounted on the supporting frame 1, and the touch pad 13 is electrically connected with the display screen assembly 2. With the structure, the image angle of the display screen component 2 can be adjusted in a 360-degree rotation mode through the touch pad 13, so that the image can be conveniently viewed in a full-angle mode.

In one embodiment, as a specific implementation of the holographic display device provided by the present application, the holographic display device further includes a supporting table (not shown) for supporting the supporting frame 1 and a driving assembly (not shown) for driving the supporting table to rotate; the driving component is connected with the supporting platform. This structure, when drive assembly drove the brace table and rotates, can drive support frame 1 rotatory in the lump, and then can realize that the user multi-angle is vwatched. The driving component can be a motor, and the motor can directly drive the supporting platform to rotate; or the driving assembly is connected with the support platform through a gear assembly, so that the transmission efficiency is improved, and the drive assembly is not limited uniquely.

The above description is only exemplary of the present application and should not be taken as limiting the present application, as any modification, equivalent replacement, or improvement made within the spirit and principle of the present application should be included in the protection scope of the present application.

Claims

1. A holographic display, characterized by: the display screen assembly comprises a support frame, an arc-shaped transparent sheet and a display screen assembly, wherein the arc-shaped transparent sheet is arranged at one end of the support frame, the display screen assembly is arranged at the other end of the support frame, and the support frame, the arc-shaped transparent sheet and the display screen assembly form an accommodating chamber in a surrounding mode; the holographic display device also comprises a shading film for diffusely reflecting the light rays in the accommodating chamber so as to block the light rays in the accommodating chamber, a semi-transparent substrate for transmitting the light rays emitted by the display screen component so as to form a holographic image and a light emitting source for irradiating the accommodating chamber; the shading film is arranged on the inner circumferential surface of the arc-shaped transparent sheet facing the display screen assembly, the semitransparent substrate is arranged on the side surface of the display screen assembly facing the shading film, and the light emitting source is arranged on the support frame.

2. Holographic display of claim 1, in which: the supporting frame comprises a frame body and two cover plates which respectively cover two opposite opening ends of the accommodating cavity, the two cover plates are respectively arranged at two ends of the frame body, and a through hole which is communicated with the display screen assembly and the semitransparent substrate is formed in the frame body; the arc-shaped transparent sheet, the shading film and the semitransparent 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 arranged on the cover plate.

3. Holographic display of claim 2, in which: the luminous source comprises luminous units which are respectively arranged on the cover plates, and the luminous units are electrically connected with the display screen component.

4. Holographic display of claim 1, in which: the display screen assembly comprises a display screen body arranged on the support frame and a main control unit for controlling the display screen body; the main control unit is electrically connected with the display screen body.

5. Holographic display of claim 1, in which: the holographic display device further comprises a rear shell used for covering the display screen assembly, and the rear shell is installed on the supporting frame.

6. Holographic display of claim 5, in which: the rear shell is provided with a plurality of heat dissipation holes.

7. Holographic display of claim 5, in which: the rear shell is arc-shaped, the cross section of the arc-shaped transparent sheet and the cross section of the rear shell are both semicircular, and the cross sectional area of the arc-shaped transparent sheet is equal to that of the rear shell.

8. Holographic display of any of claims 1 to 7, in which: the shading film is a honeycomb-shaped film layer.

9. Holographic display of any of claims 1 to 7, in which: the holographic display device also comprises a touch control plate used for adjusting the image angle of the display screen component; the touch pad is arranged on the support frame and is electrically connected with the display screen assembly.

10. Holographic display of any of claims 1 to 7, in which: the holographic display device also comprises a supporting table for supporting the supporting frame and a driving component for driving the supporting table to rotate; the driving assembly is connected with the supporting platform.