Naked eye 3D holographic display device

Abstract

The utility model discloses a naked-eye 3D holographic display device. The naked-eye 3D holographic display device comprises a naked-eye 3D display device and a reflection device, the naked-eye 3D display device is arranged on one side of the reflection device, so that a user can check 3D content displayed by the naked-eye 3D display device in a set area through the reflection device. According to the naked-eye 3D holographic display device provided by the utility model, the content on the naked-eye 3D display device is reflected into the eyes of a user through the reflecting device, and the 3D content suspended in the air is seen from the perspective of the user, so that the naked-eye 3D holographic display device has a good visual effect and user experience.

Description

Technical Field

[0001] This utility model belongs to the field of display device technology, and relates to a display device, and more particularly to a naked-eye 3D holographic display device. Background Technology

[0002] In recent years, naked-eye 3D technology has once again received attention from the industry.

[0003] With the rise of the metaverse concept, glasses-free 3D has become one of the core technologies for entering the metaverse. However, the current speed of application and promotion of glasses-free 3D display technology cannot meet people's growing demand.

[0004] In view of this, there is an urgent need to design a new glasses-free 3D display device in order to overcome at least some of the aforementioned defects of existing glasses-free 3D display devices. Utility Model Content

[0005] This invention provides a naked-eye 3D holographic display device that allows users to see 3D content suspended in the air, providing excellent visual effects and user experience.

[0006] To solve the above-mentioned technical problems, according to one aspect of this utility model, the following technical solution is adopted:

[0007] A glasses-free 3D holographic display device, comprising: a glasses-free 3D display device and a reflective device;

[0008] The glasses-free 3D display device is disposed on one side of the reflective device, which enables the 3D content displayed by the glasses-free 3D display device to be reflected to a set area through the reflective device, so that the user can view the 3D content displayed by the glasses-free 3D display device through the reflective device in the set area.

[0009] As one embodiment of this utility model, the naked-eye 3D display device can image the content on the liquid crystal display panel by fully bonding a grating in front of the liquid crystal display panel.

[0010] As one embodiment of this utility model, the content on the liquid crystal display panel is 3D content processed by a specific algorithm, which matches the optical characteristics of the fully laminated grating in front of the liquid crystal display panel, so that the user's left eye only sees the content belonging to the left eye, the right eye only sees the content belonging to the right eye, and both eyes see content with parallax at the same time, thereby forming a 3D stereoscopic visual effect.

[0011] As one embodiment of this utility model, the fully laminated grating used in the naked-eye 3D display device is a cylindrical lens grating or a slit grating.

[0012] In one embodiment of this utility model, the reflecting device is a mirror material with total reflection or a material with semi-reflection and semi-transmission.

[0013] In one embodiment of this utility model, the naked-eye 3D display device is placed horizontally and forms a 45° angle with the reflective device.

[0014] As one embodiment of this utility model, the naked-eye 3D display device includes a display content adjustment module for adjusting the display content of the video. The adjustment methods for the display content include mirroring or rotating by a set angle.

[0015] In one embodiment of this utility model, the naked-eye 3D display device is located below the reflective device or above the reflective device.

[0016] The beneficial effects of this utility model are as follows: The naked-eye 3D holographic display device proposed in this utility model reflects the content on the naked-eye 3D display device to the user's eyes through a reflection device. From the user's perspective, what is seen is 3D content floating in the air, which has a good visual effect and user experience. Attached Figure Description

[0017] Figure 1 This is a schematic diagram of the naked-eye 3D holographic display device in one embodiment of the present invention.

[0018] Figure 2 This is a schematic diagram of the naked-eye 3D holographic display device in one embodiment of the present invention.

[0019] Figure 3 This is a schematic diagram of plane mirror imaging in one embodiment of the present invention.

[0020] Figure 4 This is a schematic diagram of the naked-eye 3D display device in one embodiment of the present invention.

[0021] Figure 5 This is a schematic diagram of the naked-eye 3D holographic display device in one embodiment of the present invention.

[0022] Figure 6 This is a flowchart of a holographic display control method in one embodiment of the present invention.

[0023] Figure 7 This is a schematic diagram of the naked-eye 3D holographic display device in one embodiment of the present invention.

[0024] Figure 8 This is a schematic diagram of the naked-eye 3D holographic display device in one embodiment of the present invention. Detailed Implementation

[0025] The preferred embodiments of this utility model are described in detail below with reference to the accompanying drawings.

[0026] To further understand this utility model, preferred embodiments of this utility model are described below in conjunction with examples. However, it should be understood that these descriptions are only for further illustrating the features and advantages of this utility model, and not for limiting the scope of the claims of this utility model.

[0027] The description in this section pertains to only a few typical embodiments, and this utility model is not limited to the scope of the embodiments described. Substitution of identical or similar prior art methods with some technical features in the embodiments is also within the scope of this utility model's description and protection.

[0028] The steps described in the various embodiments in the specification are for illustrative purposes only, and the implementation of this application is not limited by the order of the steps.

[0029] The term "connection" in the instruction manual includes both direct and indirect connections.

[0030] This utility model discloses a naked-eye 3D holographic display device. Figure 1 , Figure 2 This is a schematic diagram of the naked-eye 3D holographic display device in one embodiment of the present invention; please refer to... Figure 1 , Figure 2 The naked-eye 3D holographic display device includes a naked-eye 3D display device 1 and a reflective device 2. The naked-eye 3D display device 1 is disposed on one side of the reflective device 2, enabling the 3D content displayed by the naked-eye 3D display device 1 to be reflected by the reflective device 2 to a designated area, allowing a user to view the 3D content displayed by the naked-eye 3D display device 1 in the designated area through the reflective device 2.

[0031] In one embodiment of this utility model, the naked-eye 3D display device 1 can segment the content on the liquid crystal display panel by fully bonding a grating in front of the liquid crystal display panel. The content on the liquid crystal display panel is 3D content processed by a specific algorithm, which matches the optical characteristics of the fully bonded grating in front of the liquid crystal display panel, so that the user's left eye only sees the content belonging to the left eye, and the right eye only sees the content belonging to the right eye, with both eyes simultaneously seeing content with parallax, thereby forming a 3D stereoscopic visual effect, such as... Figure 4 As shown. In one embodiment, the fully laminated grating used in the naked-eye 3D display device 1 is a lenticular lens grating or a slit grating.

[0032] The reflecting device 2 can be a fully reflective mirror material or a semi-reflective / semi-transmissive material. The naked-eye 3D display device 1 is placed horizontally and forms a 45° angle with the reflecting device 2. The naked-eye 3D display device 1 can be located below or above the reflecting device 2.

[0033] like Figure 1 As shown, on the glasses-free 3D display device, the correct, upright display direction of the image is from point A1 to point B1. The images corresponding to points A1 and B1 at the virtual image location are A2 and B2, respectively. To ensure that the user sees the correct, upright display content with A2 above and B2 below at the virtual image location, A1 on the glasses-free 3D display device must be closer to the user, and B1 must be farther from the user. This can be achieved in two ways: First, during the installation of the glasses-free 3D display device, the top of the displayed image is farther from the user, and the bottom is closer to the user. Then, the vertical mirroring is set on the glasses-free 3D display device via software or processed as a vertical mirror during content creation. Second, the installation direction of the glasses-free 3D display device is rotated so that the top of the displayed image is closer to the user and the bottom is farther from the user. Then, the horizontal mirroring is set on the glasses-free 3D display device via software or processed as a horizontal mirror during content creation.

[0034] like Figure 2 As shown, on the glasses-free 3D display device, the correct, upright display direction of the image is from point A1 to point B1. The images corresponding to points A1 and B1 at the virtual image location are A2 and B2, respectively. To ensure that the user sees the correct, upright display content with A2 above and B2 below at the virtual image location, A1 on the glasses-free 3D display device must be closer to the user, and B1 must be farther from the user. This can be achieved in two ways: First, during the installation of the glasses-free 3D display device, the top of the displayed image is farther from the user, and the bottom is closer to the user. Then, the device is horizontally mirrored using software or processed horizontally during content creation. Second, the installation direction of the glasses-free 3D display device is rotated so that the top of the displayed image is closer to the user, and the bottom is farther from the user. Then, the device is vertically mirrored using software or processed vertically during content creation.

[0035] Figure 3 This is a schematic diagram of plane mirror imaging in one embodiment of the present invention; please refer to [link / reference]. Figure 3According to the principle of plane mirror imaging, an object forms an upright, same-size, and equidistant virtual image in a plane mirror. The line connecting the virtual image and the object is perpendicular to the mirror surface, meaning the object and the virtual image are symmetrical about the plane mirror. Since the naked-eye 3D display device is placed horizontally and forms a 45° angle with the reflecting device, the naked-eye 3D display device and its virtual image form a 90° angle, meaning they are perpendicular to each other. When... Figure 2 As shown, the imaging principle is the same when the naked-eye 3D display device is located above the reflective device. According to the principle of light propagation, from the user's perspective, when the user's line of sight is perpendicular to the virtual image, the displayed content on the naked-eye 3D display device can be seen.

[0036] Figure 5 This is a schematic diagram of the naked-eye 3D holographic display device in one embodiment of the present invention; please refer to [link / reference]. Figure 5 In one embodiment of this utility model, the naked-eye 3D display device mainly consists of a signal input module, a 3D image processing module, a display module, a user control module, a storage module, a network connection module, and a power supply module.

[0037] Furthermore, in order for users to see the correct, upright image content at the virtual image formed by the plane mirror, it is necessary to display the corresponding and correct image content on the naked-eye 3D display device according to the imaging principle of plane mirrors. This can be achieved by rotating the installation orientation of the naked-eye 3D display device or / and by setting the mirror function in the software. In one embodiment, the naked-eye 3D display device 1 includes a display content adjustment module for adjusting the displayed video content. The adjustment methods include mirroring or rotating by a set angle.

[0038] Figure 6 This is a flowchart of a holographic display control method in one embodiment of the present invention; please refer to [link / reference]. Figure 6 In one embodiment of this utility model, the signal processing flow of the naked-eye 3D display device is as follows: Figure 6 As shown, the 3D video signal is input from external HDMI / DP signals or directly decoded and played from internally stored video files; the 3D image processing module extracts the parallax of the 3D video signal content to obtain the parallax of the left and right views, and then performs parallax compensation and generates new viewpoints using a multi-view naked-eye 3D algorithm to form multi-view (>=4 viewpoints) image content; finally, all multi-view image content is synthesized and rendered and output to the screen.

[0039] Figure 7 , Figure 8 This is a schematic diagram of the naked-eye 3D holographic display device in one embodiment of the present invention; please refer to [link / reference]. Figure 7 , Figure 8In one embodiment of this utility model, the naked-eye 3D holographic display device is a naked-eye 3D holographic display cabinet. The naked-eye 3D holographic display device includes: a naked-eye 3D display device 1, a reflective device 2, a computer host 3, a video signal cable 4, and a cabinet 7; the naked-eye 3D display device 1 includes a naked-eye 3D display screen, and the reflective device 2 is a specular reflective glass.

[0040] The naked-eye 3D display screen is located at the top of the naked-eye 3D holographic display case, with the screen facing downwards. A mirror-reflective glass (reflective device 2) is fixed below the naked-eye 3D display screen 1, with the reflective surface facing upwards, and the mirror-reflective glass is installed and fixed to the naked-eye 3D display screen at a 45° angle. A computer host is located at the bottom of the naked-eye 3D holographic display case and is connected to the naked-eye 3D display screen 1 via video signal cables 4 and other cables.

[0041] In this implementation case, the naked-eye 3D display screen is installed after being rotated 180 degrees. Specifically, the top of the naked-eye 3D display screen is located on the inner side of the naked-eye 3D holographic display cabinet, while the bottom of the display screen is located on the outer side. During use, by enabling the built-in horizontal mirroring function of the naked-eye 3D display screen or by horizontally mirroring the content, the user can see the correct, upright image content.

[0042] Computer host 3 runs naked-eye 3D related algorithm software and applications made by common 3D rendering engines such as Unity3D or Unreal. The 3D content rendered by the application is transmitted to the naked-eye 3D display screen via video signal cable 4 for 3D display. The 3D content displayed on the naked-eye 3D display screen enters the user's eyes through the mirror reflection glass 2. The user sees a virtual image 5 on the backward extension line of light 6, achieving a floating effect.

[0043] To further enhance the visual effect, the interior of the upper part of cabinet 7, which contains the naked-eye 3D display screen and the mirrored glass, is completely blacked out. At the same time, when the application running on computer host 3 renders 3D content, the background color is also chosen to be black as much as possible. This allows users to see a completely floating stereoscopic visual effect with 3D depth.

[0044] In summary, the naked-eye 3D holographic display device proposed in this utility model reflects the content on the naked-eye 3D display device into the user's eyes through a reflective device. From the user's perspective, the 3D content appears to be suspended in the air, which has a good visual effect and user experience.

[0045] It should be noted that this application can be implemented in software and / or a combination of software and hardware; for example, it can be implemented using an application-specific integrated circuit (ASIC), a general-purpose computer, or any other similar hardware device. In some embodiments, the software program of this application can be executed by a processor to implement the steps or functions described above. Similarly, the software program of this application (including related data structures) can be stored in a computer-readable recording medium; for example, RAM memory, magnetic or optical drives, floppy disks, and similar devices. In addition, some steps or functions of this application can be implemented in hardware; for example, as circuitry that cooperates with a processor to perform the various steps or functions.

[0046] The technical features of the above embodiments can be combined in any way. For the sake of brevity, not all possible combinations of the technical features in the above embodiments are described. However, as long as there is no contradiction in the combination of these technical features, they should be considered to be within the scope of this specification.

[0047] The description and application of this utility model herein are illustrative and not intended to limit the scope of the utility model to the above embodiments. The effects or advantages involved in the embodiments may not be manifested in the embodiments due to various factors, and the description of effects or advantages is not intended to limit the embodiments. Variations and modifications of the embodiments disclosed herein are possible, and various substitutions and equivalents of the components in the embodiments are well known to those skilled in the art. It should be clear to those skilled in the art that this utility model can be implemented in other forms, structures, arrangements, proportions, and with other components, materials, and parts without departing from the spirit or essential characteristics of this utility model. Other variations and modifications can be made to the embodiments disclosed herein without departing from the scope and spirit of this utility model.

Claims

1. A naked-eye 3D holographic display device, characterized in that, The naked-eye 3D holographic display device includes: a naked-eye 3D display device and a reflective device; The glasses-free 3D display device is disposed on one side of the reflective device, which enables the 3D content displayed by the glasses-free 3D display device to be reflected to a set area through the reflective device, so that the user can view the 3D content displayed by the glasses-free 3D display device through the reflective device in the set area; The reflective device is made of a fully reflective mirror material; the naked-eye 3D display device is placed horizontally and forms a 45° angle with the reflective device; the naked-eye 3D display device is located above the reflective device.

2. The naked-eye 3D holographic display device according to claim 1, characterized in that: The naked-eye 3D display device can image the content on the liquid crystal display panel by fully bonding a grating in front of the liquid crystal display panel.

3. The naked-eye 3D holographic display device according to claim 2, characterized in that: The content on the liquid crystal display panel is 3D content processed by a specific algorithm, which matches the optical characteristics of the fully laminated grating in front of the liquid crystal display panel, so that the user's left eye only sees the content belonging to the left eye, the right eye only sees the content belonging to the right eye, and both eyes see content with parallax at the same time, thus forming a 3D stereoscopic visual effect.

4. The naked-eye 3D holographic display device according to claim 2, characterized in that: The naked-eye 3D display device uses a fully laminated grating, which is either a lenticular lens grating or a slit grating.

5. The naked-eye 3D holographic display device according to claim 1, characterized in that: The naked-eye 3D display device includes a display content adjustment module for adjusting the display content of the video. The adjustment methods for the display content include mirroring or rotating by a set angle.

Images