CN112995644A - Naked eye 3D display device and electronic equipment - Google Patents
Naked eye 3D display device and electronic equipment Download PDFInfo
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- CN112995644A CN112995644A CN202110215968.6A CN202110215968A CN112995644A CN 112995644 A CN112995644 A CN 112995644A CN 202110215968 A CN202110215968 A CN 202110215968A CN 112995644 A CN112995644 A CN 112995644A
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- H—ELECTRICITY
- H04—ELECTRIC COMMUNICATION TECHNIQUE
- H04N—PICTORIAL COMMUNICATION, e.g. TELEVISION
- H04N13/00—Stereoscopic video systems; Multi-view video systems; Details thereof
- H04N13/30—Image reproducers
- H04N13/302—Image reproducers for viewing without the aid of special glasses, i.e. using autostereoscopic displays
Abstract
The invention provides a naked eye 3D display device and electronic equipment, wherein the naked eye 3D display device comprises: the system comprises an image acquisition module, a display module and a display module, wherein the image acquisition module is used for acquiring holographic 3D image information of a scene to be displayed; the image display module comprises a point light source layer and a shielding layer, wherein the point light source layer comprises a plurality of white point light sources, each white point light source corresponds to one pixel, the shielding layer comprises a plurality of shielding surfaces, each shielding surface is arranged in front of at least one corresponding white point light source, and each shielding surface displays the pixel corresponding to the corresponding white point light source according to the holographic 3D image information. The invention can realize the naked eye 3D effect, bring richer visual information and realize the full-view viewing of the naked eye.
Description
Technical Field
The invention relates to the technical field of display devices, in particular to a naked eye 3D display device and electronic equipment.
Background
Currently, mainstream 3D display is divided into glasses type and naked eye type, and the most basic principle of the two 3D displays is similar, namely that different pictures are respectively received by the left and right of human eyes, and then the brain superimposes and reproduces image information to make the brain feel a stereoscopic image. Both solutions have some drawbacks and disadvantages.
Specifically, the glasses type 3D display scheme uses special glasses to enable two eyes to receive different pictures, for example, red and blue filters are used in a red-blue difference mode, the left and right lenses transmit different lights, the pictures of the left and right eyes are projected by using different colors of lights, and the left and right eyes can see different pictures. The other mainstream glasses are of a polarization type, the polarization type 3D decomposes an original image by using the principle that light has a "vibration direction", the image is divided into two groups of pictures of vertical polarized light and horizontal polarized light, and then polarization lenses with different polarization directions are adopted on the left and the right of the 3D glasses, so that the left eye and the right eye of a person can receive the two groups of pictures and synthesize a stereoscopic image through the brain. The glasses type 3D display scheme requires the use of additional devices to have a 3D effect.
The naked-eye type 3D display scheme is an effect in which 3D stereoscopic display can be directly viewed with naked-eye vision without wearing any special accessories. The naked-eye type 3D is classified into three types, namely, a Barrier (Barrier), a Lenticular Lens (Lens) technology, and a Directional light source (Directional Backlight), and different pictures are seen by the left and right eyes in some way. The naked eye type 3D display scheme is not as good as glasses type in use experience.
In addition to the above mentioned drawbacks, the two solutions described above also have a common drawback: the visual information is single, and the stereo image can be seen from only one visual angle, namely the stereo effect seen from different angles is the same.
Disclosure of Invention
The invention provides a naked eye 3D display device and electronic equipment for solving the technical problems, which can realize a naked eye 3D effect, bring richer visual information and realize full-view viewing of naked eyes.
The technical scheme adopted by the invention is as follows:
a naked eye 3D display device comprising: the system comprises an image acquisition module, a display module and a display module, wherein the image acquisition module is used for acquiring holographic 3D image information of a scene to be displayed; the image display module comprises a point light source layer and a shielding layer, wherein the point light source layer comprises a plurality of white point light sources, each white point light source corresponds to one pixel, the shielding layer comprises a plurality of shielding surfaces, each shielding surface is arranged in front of at least one corresponding white point light source, and each shielding surface displays the pixel corresponding to the corresponding white point light source according to the holographic 3D image information.
The holographic 3D image information of the scene to be displayed is obtained by shooting through a plurality of viewfinders arranged at different shooting angles.
And the holographic 3D image information of the scene to be displayed is obtained by conversion according to an image which is shot by a depth viewfinder and contains depth information.
And converting the holographic 3D image information of the scene to be displayed according to the 3D model.
When one of the mask surfaces corresponds to two or more white point-like light sources, the two or more white point-like light sources emit light in sequence at different time intervals, and the mask surface displays pixels corresponding to the light-emitting white point-like light sources.
The cover surface is a liquid crystal panel.
An electronic device comprises the naked eye 3D display device.
The invention has the beneficial effects that:
according to the invention, the point light source layer and the mask layer are arranged, the point light source layer comprises a plurality of white point light sources which correspond to the pixels one by one, the mask layer comprises a plurality of mask surfaces, each mask surface is arranged in front of at least one corresponding white point light source, and each mask surface displays the pixel corresponding to the corresponding white point light source, so that a naked eye 3D effect can be realized, richer visual information can be brought, and the naked eye full-view viewing can be realized.
Drawings
Fig. 1 is a schematic block diagram of a naked-eye 3D display device according to an embodiment of the present invention;
FIG. 2 is a view of a scene to be displayed according to an embodiment of the present invention;
FIG. 3 is a schematic diagram illustrating an acquisition method of an image of a scene to be displayed according to another embodiment of the present invention;
FIG. 4 is a schematic diagram illustrating an acquisition method of an image of a scene to be displayed according to another embodiment of the present invention;
FIG. 5 is a schematic view of a mask layout and a display layout according to an embodiment of the present invention;
fig. 6 is a schematic view of a mask surface arrangement and a display mode according to another embodiment of the invention.
Detailed Description
The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments. All other embodiments, which can be derived by a person skilled in the art from the embodiments given herein without making any creative effort, shall fall within the protection scope of the present invention.
As shown in fig. 1, the naked-eye 3D display device according to the embodiment of the present invention includes an image acquisition module 100 and an image display module 200. The image obtaining module 100 is configured to obtain holographic 3D image information of a scene to be displayed; the image display module 200 includes a point light source layer 210 and a mask layer 220, wherein the point light source layer 210 includes a plurality of white point light sources, each white point light source corresponds to one pixel, the mask layer 220 includes a plurality of mask surfaces, each mask surface is disposed in front of at least one corresponding white point light source, and each mask surface displays the pixel corresponding to the corresponding white point light source according to the holographic 3D image information.
In one embodiment of the invention, holographic 3D image information of a scene to be displayed may be captured by a plurality of viewfinders arranged at different capture angles. As shown in fig. 2, a plurality of viewfinders can be uniformly arranged in an angle range of 180 degrees in front of a scene to be displayed, different viewfinders can acquire different visual information, and holographic 3D image information of the scene to be displayed can be obtained by synthesizing images acquired by different viewfinders.
In one embodiment of the invention, the holographic 3D image information of the scene to be displayed may be converted from an image taken by a depth finder that contains depth information. As shown in fig. 3, an image containing depth information of a scene to be displayed may be collected through a depth finder, the image is information of a single viewing angle and is superimposed with the depth information, and then, image conversion is performed by a computer to calculate different visual information, so as to obtain holographic 3D image information of the scene to be displayed.
In one embodiment of the invention, the holographic 3D image information of the scene to be displayed may be converted from a 3D model. As shown in fig. 4, by obtaining a virtual 3D model of a scene to be displayed, and then performing image conversion by a computer, different visual information is calculated, and holographic 3D image information of the scene to be displayed is obtained.
After acquiring the holographic 3D image information of the scene to be displayed, the holographic 3D image may be displayed through the mask layer 220. In the embodiment of the invention, a planar mask surface can be arranged in front of the white point-shaped light source, and the mask surface is a transparent panel, preferably a liquid crystal panel. If the area occupied by each white point-shaped light source is larger, a cover surface can be arranged corresponding to one white point-shaped light source; if the area occupied by each white point-like light source is small, a mask surface may be provided corresponding to a plurality of white point-like light sources in order to prevent the influence of light diffraction due to the small size of a single mask surface. When one mask surface corresponds to one white point-like light source, all the white point-like light sources in the point light source layer 210 may emit light at the same time; when one cover surface corresponds to two or more white point-shaped light sources, the two or more white point-shaped light sources can emit light in sequence in a time-sharing manner, and the cover surface can display pixels corresponding to the light-emitting white point-shaped light sources. The number of the white point-like light sources corresponding to one mask surface is set based on that the mask surface cannot normally display due to the influence of light diffraction. It should be noted that, in the embodiment of the present invention, the shielding surface is disposed before the white point-like light source, and the direction from the white point-like light source to the eye position is the forward direction, that is, the shielding surface is disposed between the white point-like light source and the viewing position, and when the display content is viewed by the eyes, the shielding surface can completely shield the corresponding white point-like light source. The distance between the cover surface and the white point-like light sources can be set according to normal display, and depends on the white point-like light sources, that is, the size of the area occupied by one pixel, the size of the area of the cover surface and other factors, the number of the white point-like light sources corresponding to one cover surface is the same as that of the white point-like light sources corresponding to the above cover surface, and the white point-like light sources can be obtained by calculation according to actual design parameters or through limited experiments by technicians in the field, and the white point-like light sources are not limited to specific.
In an embodiment of the present invention, when a display scene corresponding to a low pixel density, for example, a naked-eye 3D display device is applied to a large billboard, each pixel corresponds to a point light source due to the low pixel density, but the distance between adjacent pixels is larger, that is, the area occupied by each white point light source is larger on average, in this case, a cover surface may be disposed before each white point light source. As shown in fig. 5, the white point-like light source emits light and contains a full amount of color vision information, the mask surface can display the pixel corresponding to the white point-like light source, and after the light of the white point-like light source passes through the mask surface, the mask surface can filter some colors to restore the original light field information of the pixel. Because the mask has a certain area, when the stereo-glasses are viewed from different visual angles, the seen point light sources are different, for example, different colors, and because the positions of two eyes of a person on the space are different, the pixels seen by the two eyes are different, so that the stereo effect is realized, and another stereo scene can be viewed after the two eyes move.
In an embodiment of the present invention, when a display scene corresponding to a high pixel density, for example, a naked eye 3D display device is applied to a mobile phone, a tablet computer, a PC, etc., since the pixel density is high, an area occupied by each white point light source is small on average, and if a mask surface is small, visual information of different viewing angles cannot be restored well due to light diffraction, which requires to enlarge the area of the mask surface. For example, a mask surface may be disposed corresponding to a square matrix formed by four white point-like light sources, that is, one mask surface covers the four white point-like light sources, and each white point-like light source uses the mask surface in turn. As shown in fig. 6, first, a mask surface is used for the first white point-like light source (a, b, c, d are in the order of upper left, upper right, lower left, and lower right), that is, the white point-like light source a is turned on, the white point-like light sources b, c, d are turned off, a pixel corresponding to the white point-like light source a is displayed in an area corresponding to the white point-like light source a on the mask surface, and the original light field information of the pixel is restored; then the white point light source b is lighted, the white point light sources a, c and d are turned off, the area corresponding to the white point light source b on the cover surface displays the pixel corresponding to the white point light source b, and original light field information of the pixel is restored; …, and so on, to achieve the display of stereoscopic effect. It should be understood that in this way of time-sharing lighting, the refresh frequency of the display is relatively reduced, for example, in the case that the one mask surface covers four white point-like light sources, compared with the case that the one mask surface covers one white point-like light source, the information that can be displayed once originally needs to be displayed four times, so the refresh frequency is 1/4 originally, but the problem of diffraction of light when the pixel is too small can be solved, and the naked-eye 3D effect is ensured.
According to the naked eye 3D display device provided by the embodiment of the invention, the point light source layer and the mask layer are arranged, the point light source layer comprises a plurality of white point light sources which correspond to the pixels one by one, the mask layer comprises a plurality of mask surfaces, each mask surface is arranged in front of at least one corresponding white point light source, and each mask surface displays the pixels corresponding to the corresponding white point light sources, so that a naked eye 3D effect can be realized, richer visual information can be brought, and the naked eye full-view viewing can be realized.
Based on the naked eye 3D display device of the embodiment, the invention further provides electronic equipment.
The electronic device according to the embodiment of the present invention includes the naked-eye 3D display device according to any one of the above embodiments of the present invention, and specific implementation manners thereof may refer to the above embodiments, and details thereof are not described herein.
According to the electronic equipment provided by the embodiment of the invention, a naked eye 3D effect can be realized, richer visual information can be brought, and full-view viewing of the naked eye can be realized.
In the description of the present invention, the terms "first" and "second" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implying any number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. The meaning of "plurality" is two or more unless specifically limited otherwise.
In the present invention, unless otherwise expressly stated or limited, the terms "mounted," "connected," "secured," and the like are to be construed broadly and can, for example, be fixedly connected, detachably connected, or integrally formed; can be mechanically or electrically connected; either directly or indirectly through intervening media, either internally or in any other relationship. The specific meanings of the above terms in the present invention can be understood by those skilled in the art according to specific situations.
In the present invention, unless otherwise expressly stated or limited, the first feature "on" or "under" the second feature may be directly contacting the first and second features or indirectly contacting the first and second features through an intermediate. Also, a first feature "on," "over," and "above" a second feature may be directly or diagonally above the second feature, or may simply indicate that the first feature is at a higher level than the second feature. A first feature being "under," "below," and "beneath" a second feature may be directly under or obliquely under the first feature, or may simply mean that the first feature is at a lesser elevation than the second feature.
In the description herein, references to the description of the term "one embodiment," "some embodiments," "an example," "a specific example," or "some examples," etc., 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.
Any process or method descriptions in flow charts or otherwise described herein may be understood as representing modules, segments, or portions of code which include one or more executable instructions for implementing specific logical functions or steps of the process, and alternate implementations are included within the scope of the preferred embodiment of the present invention in which functions may be executed out of order from that shown or discussed, including substantially concurrently or in reverse order, depending on the functionality involved, as would be understood by those reasonably skilled in the art of the present invention.
The logic and/or steps represented in the flowcharts or otherwise described herein, e.g., an ordered listing of executable instructions that can be considered to implement logical functions, can be embodied in any computer-readable medium for use by or in connection with an instruction execution system, apparatus, or device, such as a computer-based system, processor-containing system, or other system that can fetch the instructions from the instruction execution system, apparatus, or device and execute the instructions. For the purposes of this description, a "computer-readable medium" can be any means that can contain, store, communicate, propagate, or transport the program for use by or in connection with the instruction execution system, apparatus, or device. More specific examples (a non-exhaustive list) of the computer-readable medium would include the following: an electrical connection (electronic device) having one or more wires, a portable computer diskette (magnetic device), a Random Access Memory (RAM), a read-only memory (ROM), an erasable programmable read-only memory (EPROM or flash memory), an optical fiber device, and a portable compact disc read-only memory (CDROM). Additionally, the computer-readable medium could even be paper or another suitable medium upon which the program is printed, as the program can be electronically captured, via for instance optical scanning of the paper or other medium, then compiled, interpreted or otherwise processed in a suitable manner if necessary, and then stored in a computer memory.
It should be understood that portions of the present invention may be implemented in hardware, software, firmware, or a combination thereof. In the above embodiments, the various steps or methods may be implemented in software or firmware stored in memory and executed by a suitable instruction execution system. For example, if implemented in hardware, as in another embodiment, any one or combination of the following techniques, which are known in the art, may be used: a discrete logic circuit having a logic gate circuit for implementing a logic function on a data signal, an application specific integrated circuit having an appropriate combinational logic gate circuit, a Programmable Gate Array (PGA), a Field Programmable Gate Array (FPGA), or the like.
It will be understood by those skilled in the art that all or part of the steps carried by the method for implementing the above embodiments may be implemented by hardware related to instructions of a program, which may be stored in a computer readable storage medium, and when the program is executed, the program includes one or a combination of the steps of the method embodiments.
In addition, functional units in the embodiments of the present invention may be integrated into one processing module, or each unit may exist alone physically, or two or more units are integrated into one module. The integrated module can be realized in a hardware mode, and can also be realized in a software functional module mode. The integrated module, if implemented in the form of a software functional module and sold or used as a stand-alone product, may also be stored in a computer readable storage medium.
Although embodiments of the present invention have been shown and described above, it is understood that the above embodiments are exemplary and should not be construed as limiting the present invention, and that variations, modifications, substitutions and alterations can be made to the above embodiments by those of ordinary skill in the art within the scope of the present invention.
Claims (7)
1. A naked eye 3D display device, comprising:
the system comprises an image acquisition module, a display module and a display module, wherein the image acquisition module is used for acquiring holographic 3D image information of a scene to be displayed;
the image display module comprises a point light source layer and a shielding layer, wherein the point light source layer comprises a plurality of white point light sources, each white point light source corresponds to one pixel, the shielding layer comprises a plurality of shielding surfaces, each shielding surface is arranged in front of at least one corresponding white point light source, and each shielding surface displays the pixel corresponding to the corresponding white point light source according to the holographic 3D image information.
2. The naked-eye 3D display device according to claim 1, wherein the holographic 3D image information of the scene to be displayed is captured by a plurality of viewfinders arranged at different capture angles.
3. The naked-eye 3D display device according to claim 1, wherein the holographic 3D image information of the scene to be displayed is converted from an image taken by a depth viewfinder containing depth information.
4. The naked-eye 3D display device according to claim 1, wherein the holographic 3D image information of the scene to be displayed is converted from a 3D model.
5. The naked eye 3D display device according to any one of claims 1 to 4, wherein when one mask surface corresponds to two or more white point-like light sources, the two or more white point-like light sources sequentially emit light in a time-sharing manner, and the mask surface displays pixels corresponding to the white point-like light sources that emit light.
6. The naked-eye 3D display device according to claim 5, wherein the cover side is a liquid crystal panel.
7. An electronic device, characterized in that it comprises a naked-eye 3D display apparatus according to any of claims 1-6.
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| CN202110215968.6A CN112995644A (en) | 2021-02-25 | 2021-02-25 | Naked eye 3D display device and electronic equipment |
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