3D display device

Abstract

The application discloses a 3D display device. The 3D display device comprises a plurality of light-emitting fibers and a plurality of electrode traces. The plurality of light-emitting fibers are arranged at intervals and are arranged in different planes. The plurality of electrode traces are arranged at intervals and are arranged in contact with the corresponding light-emitting fibers to form a three-dimensional network structure. The 3D display device of the application can display a more comprehensive and real three-dimensional image by using the light-emitting fibers and the electrode traces to form a three-dimensional network structure.

Description

Technical Field

[0001] This application relates to the field of display technology, and more specifically to a 3D display device. Background Technology

[0002] Holographic display is a true three-dimensional display achieved using the principles of holography. Holographic displays show all the features of a three-dimensional object and exhibit parallax effects. When observed from different positions, the object appears significantly displaced. Holographic displays utilize the principle of interference to record specific light waves emitted by an object as interference fringes, storing all information about the object's wavefront in a recording medium. Therefore, the recorded interference fringe pattern is called a "hologram." When a hologram is illuminated with light waves, the original object's light waves can be reproduced using the principle of diffraction, thus forming a three-dimensional image of the original object.

[0003] However, the principle of holographic stereoscopic image display is quite complex and difficult to integrate into a display device. Therefore, there is an urgent need to provide a display device capable of realizing stereoscopic images. Summary of the Invention

[0004] This application provides a 3D display device capable of displaying more comprehensive and realistic stereoscopic images.

[0005] This application provides a 3D display device, which includes:

[0006] Multiple light-emitting fibers are arranged at intervals and disposed in different planes;

[0007] Multiple electrode traces are arranged at intervals and cross-contact with the corresponding light-emitting fibers to form a three-dimensional network structure.

[0008] Optionally, in some embodiments of this application, the 3D display device has a plurality of mutually parallel display planes along the first direction;

[0009] Within each of the display planes, multiple light-emitting fibers are arranged along a second direction, and multiple electrode traces are arranged along a third direction. The second direction and the third direction intersect, and both the second direction and the third direction are perpendicular to the first direction.

[0010] Optionally, in some embodiments of this application, adjacent light-emitting fibers emit light of different colors.

[0011] Optionally, in some embodiments of this application, the light-emitting fibers include red light-emitting fibers, green light-emitting fibers, and blue light-emitting fibers;

[0012] Within the same display plane, the red light-emitting fibers, the green light-emitting fibers, and the blue light-emitting fibers are repeatedly arranged in any combination; within adjacent display planes, the light-emitting fibers are arranged in a one-to-one correspondence.

[0013] Optionally, in some embodiments of this application, the 3D display device further includes a first substrate and a second substrate disposed opposite to each other, and a third substrate and a fourth substrate disposed opposite to each other, wherein the first substrate, the second substrate, the third substrate and the fourth substrate are connected end to end;

[0014] One end of each of the light-emitting fibers is fixed on the first substrate, the other end of each of the light-emitting fibers is fixed on the second substrate, one end of each of the electrode traces is fixed on the third substrate, and the other end of each of the electrode traces is fixed on the fourth substrate.

[0015] Optionally, in some embodiments of this application, a first via is provided on the first substrate and / or the second substrate, and a second via is provided on the third substrate and / or the fourth substrate. Each of the light-emitting fibers extends to the outside of the first substrate or the second substrate through the first via, and each of the electrode traces extends to the outside of the third substrate or the fourth substrate through the second via.

[0016] Optionally, in some embodiments of this application, the first substrate and / or the second substrate includes a first conductive pin, the third substrate and / or the fourth substrate includes a second conductive pin, one end of each light-emitting fiber is electrically connected to the corresponding first conductive pin, and one end of each electrode trace is electrically connected to the corresponding second conductive pin.

[0017] Optionally, in some embodiments of this application, the 3D display device further includes a driving chip, which is connected to the light-emitting fiber through the first conductive pin and to the electrode trace through the second conductive pin. The driving chip is used to provide a driving voltage to the light-emitting fiber and the electrode trace.

[0018] Optionally, in some embodiments of this application, the 3D display device further includes a fifth substrate and a sixth substrate disposed opposite to each other, wherein the first substrate, the second substrate, the third substrate, the fourth substrate, the fifth substrate, and the sixth substrate form a closed structure;

[0019] Both the fifth substrate and the sixth substrate are made of transparent material.

[0020] Optionally, in some embodiments of this application, the light-emitting fiber includes a conductive layer and an insulating dielectric layer coaxially arranged from the inside to the outside, and the insulating dielectric layer contains a light-emitting material;

[0021] Both the conductive layer and the electrode traces are made of transparent and / or stretchable materials.

[0022] Optionally, in some embodiments of this application, the luminescent material includes a plurality of luminescent particles, which are doped in the insulating dielectric layer.

[0023] Optionally, in some embodiments of this application, the luminescent material includes a luminescent layer, and the insulating dielectric layer includes a first insulating dielectric layer and a second insulating dielectric layer. The first insulating dielectric layer covers the outside of the conductive layer, the luminescent layer covers the outside of the first insulating dielectric layer, and the second insulating dielectric layer covers the outside of the luminescent layer.

[0024] This application provides a 3D display device. The 3D display device includes multiple light-emitting fibers and multiple electrode traces. The multiple light-emitting fibers are arranged at intervals and disposed in different planes. The multiple electrode traces are arranged at intervals and are in cross-contact with the corresponding light-emitting fibers to form a three-dimensional network structure. This application utilizes the contact and intersection of the light-emitting fibers and electrode traces to form a three-dimensional network structure. Each intersection point between the light-emitting fibers and electrode traces is a pixel. By applying different driving voltages to the light-emitting fibers and electrode traces, the corresponding pixels can be made to emit light, thereby enabling the 3D display device to display a more comprehensive and realistic three-dimensional image. Attached Figure Description

[0025] To more clearly illustrate the technical solutions in the embodiments of this application, the accompanying drawings used in the description of the embodiments will be briefly introduced below. Obviously, the accompanying drawings described below are only some embodiments of this application. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0026] Figure 1 This is a first structural schematic diagram of the 3D display device provided in this application;

[0027] Figure 2 This is a schematic diagram of a structure of the luminescent fiber provided in this application;

[0028] Figure 3 yes Figure 2 The diagram shows a schematic of the first cross-sectional structure of the luminescent fiber along AA'.

[0029] Figure 4 This is a schematic diagram of the light-emitting principle of the light-emitting fibers and electrode wiring provided in this application;

[0030] Figure 5 yes Figure 2 The diagram shows the second cross-sectional structure of the luminescent fiber along AA'.

[0031] Figure 6 This is a second structural schematic diagram of the 3D display device provided in this application;

[0032] Figure 7 This is a schematic diagram of a structure of the first substrate in the 3D display device provided in this application;

[0033] Figure 8 This is a schematic diagram of the structure of a third substrate in the 3D display device provided in this application. Detailed Implementation

[0034] The technical solutions of the embodiments of this application will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some embodiments of this application, and not all embodiments. Based on the embodiments of this application, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of this application. In addition, it should be understood that the specific embodiments described herein are only for illustration and explanation of this application and are not intended to limit this application. Furthermore, the terms "first" and "second" are used for descriptive purposes only and should not be construed as indicating or implying relative importance or implicitly specifying the number of indicated technical features. Thus, features defined with "first" and "second" may explicitly or implicitly include one or more of the stated features.

[0035] This application provides a 3D display device, which will be described in detail below. It should be noted that the order of description of the following embodiments is not intended to limit the preferred order of the embodiments of this application.

[0036] Please see Figure 1 , Figure 1 This is a first structural schematic diagram of the 3D display device provided in this application. In this application, the 3D display device 100 includes multiple light-emitting fibers 10 and multiple electrode traces 20. The multiple light-emitting fibers 10 are arranged at intervals and disposed in different planes. The multiple electrode traces 20 are arranged at intervals and are arranged in cross contact with the corresponding light-emitting fibers 10 to form a three-dimensional network structure.

[0037] Therefore, this application utilizes the contact and intersection of the light-emitting fibers 10 and the electrode traces 20 to form a three-dimensional network structure. Each intersection point Q between the light-emitting fibers 10 and the electrode traces 20 is a pixel. The light emission state of each intersection point Q is controlled by the corresponding light-emitting fiber 10 and electrode trace 20. Therefore, by applying different driving voltages to the light-emitting fibers 10 and electrode traces 20, the corresponding intersection point Q can be made to emit light, thereby enabling the 3D display device 100 to display a more comprehensive and realistic stereoscopic image.

[0038] Please also refer to Figure 2 and Figure 3 , Figure 2 This is a schematic diagram of a structure of the luminescent fiber provided in this application. Figure 3 yes Figure 2 The diagram shows a first cross-sectional view of the luminescent fiber along AA'. In this application, the luminescent fiber 10 includes a conductive layer 11 and an insulating dielectric layer 12 arranged coaxially from the inside to the outside. A luminescent material 13 is disposed in the insulating dielectric layer 12.

[0039] In this application, the conductive layer 11 and the electrode traces 20 can be made of conductive metallic materials such as copper, aluminum, and molybdenum. The conductive layer 11 and the electrode traces 20 can also be made of transparent conductive materials such as organic conductive polymers, indium gallium zinc oxide, graphene, ion-conducting hydrogels, indium gallium zinc oxide, indium gallium tin oxide, and antimony tin oxide. Among these, the organic conductive polymer can be poly(3,4-ethylenedioxythiophene), etc. The ion-conducting hydrogel can be aluminum chloride-polyacrylamide conductive hydrogel, etc. Aluminum chloride-polyacrylamide conductive hydrogel exhibits stable stretchability and sufficient ionic conductivity.

[0040] In this application, the dielectric layer 12 has insulating properties. When the luminescent material 13 is dispersed luminescent particles, the material of the dielectric layer 12 needs to be able to disperse the luminescent material particles. The material of the dielectric layer 12 can be a transparent polymer material such as polydimethylsiloxane (PDMS), polyimide, or polyethylene terephthalate (PET). The thickness of the dielectric layer 12 is generally between 5 μm and 500 μm. For example, the thickness of the dielectric layer 12 can be 5 μm, 50 μm, 100 μm, 250 μm, 400 μm, 500 μm, etc., which will not be elaborated here.

[0041] Specifically, the size of the dielectric layer 12 can be adjusted based on the particle size of the selected light-emitting material 13 and the display resolution. It is understood that the smaller the thickness of the dielectric layer 12, the smaller the cross-sectional size of the light-emitting fiber 10. This allows for a higher resolution in the 3D display device 100. Furthermore, the thickness of the dielectric layer 12 must be greater than the particle size of the light-emitting material 13 doped within it to provide insulation and protection.

[0042] In this application, the luminescent material 13 mainly comprises two parts: a matrix material and a luminescent center. The matrix material is typically a group II-VI compound, a ternary sulfide, an oxide, or a fluoride. Group II-VI compounds can be ZnS, ZnSe, CaS, SrS, etc. Ternary sulfides can be CaGaS4, SrGa2S4, etc. Oxides can be Zn2Si. 1-x Ce x O4, ZnGa2O4, Ga2O3, etc. The luminescent center is typically a transition metal or rare earth metal. Transition metals can be manganese, copper, chromium, etc. Rare earth metals can be cerium, praseodymium, europium, terbium, etc. For example, luminescent material 13 can be ZnS:Mn, SrS:Ce, SrS:Cu, SrS:Ag / Cu, ZnS doped with rare earth elements, thioglycolate, other alkaline earth metal sulfides, etc.

[0043] The particle size of the luminescent material 13 is typically between 50 nm and 10 μm. For example, the particle size of the luminescent material 13 can be 50 nm, 100 nm, 50 nm, 500 nm, 1 μm, 5 μm, 10 μm, etc., which will not be elaborated here.

[0044] Different types of luminescent materials 13 emit different colors. For the same type of luminescent material 13, different particle sizes may also produce different colors. This application can use the same type of luminescent material 13 or different types of luminescent materials 13 in the dielectric layer 12.

[0045] It is understood that the aforementioned luminescent material 13 emits light via electroluminescence. In some embodiments of the application, photoluminescent materials can also be doped into the insulating dielectric layer 12 to achieve luminescence through an energy transfer process, thereby obtaining a richer range of luminescent colors. The photoluminescent materials can be quantum dots, upconversion nanoparticles, phosphors, etc., which will not be elaborated upon here.

[0046] In some embodiments of this application, the 3D display device 100 can be transparent to achieve a better display effect. For this purpose, the light-emitting fiber 10 can be made of transparent light-emitting fiber. That is, both the conductive layer 11 and the insulating dielectric layer 12 can be made of the aforementioned transparent material. Furthermore, the electrode traces 20 can also be made of transparent material, which can further improve the transparency of the 3D display device 100. Of course, the material of the electrode traces 20 can also be opaque conductive metals such as copper, aluminum, or molybdenum. When the electrode traces 20 are made of opaque material, the aperture ratio (transparency) of the 3D display device 100 is determined by the weaving density.

[0047] Furthermore, the conductive layer 11, the insulating dielectric layer 12, and the electrode traces 20 are all made of stretchable materials. For example, the conductive layer 11 and the electrode traces 20 are made of stretchable conductive materials such as ion-conductive hydrogels, and the insulating dielectric layer 12 is made of stretchable dielectric materials such as PDMS. This results in a stretchable flexible 3D display device 100. The size of the 3D display device 100 can be changed by stretching the light-emitting fibers 10 and the electrode traces 20.

[0048] Please also refer to Figure 3 and Figure 4 , Figure 4 This is a schematic diagram illustrating the light-emitting principle of the light-emitting fiber and electrode wiring provided in this application. In the embodiments of this application, the light-emitting fiber 10 only includes a conductive layer 11 and an insulating dielectric layer 12. The light-emitting fiber 10 has a simple structure, higher production efficiency, and can reduce production costs. However, based on the principle of electroluminescence, when using... Figure 3 When using the light-emitting fiber 10 shown, additional electrode traces 20 are required to work together with the light-emitting fiber 10 to emit light.

[0049] The conductive layer 11 and electrode traces 20 serve as electrodes to supply power to the light-emitting material 13. Specifically, alternating current can be applied to the first transparent conductive layer 11 and the electrode traces 20. When the voltage is sufficiently high, electrons are injected from the insulating-semiconductor (dielectric layer 12 and light-emitting material 13) interface layer into the light-emitting material 13. The injected electrons gain energy in the strong electric field, and these high-energy electrons or hot electrons excite ions (such as Cu) that act as "light-emitting centers" through collisions. + The luminescent center, in its excited state, returns to its ground state by emitting photons, while electrons passing through the luminescent material 13 are trapped in the insulating-semiconductor interface layer on the other side. When the alternating current voltage is reversed, the same process repeats. Thus, the intersection Q of the first transparent conductive layer 11 and the electrode trace 20 can emit light under the influence of an alternating electric field. The brightness of the intersection Q can be increased by increasing the voltage and frequency of the alternating current.

[0050] Specifically, the voltage range of alternating current (AC) is 0.1-200V, and the frequency is 50Hz-50kHz. For example, the voltage values ​​of AC can be 0.1V, 5V, 50V, 100V, 200V, etc., and the frequencies can be 50Hz, 100Hz, 10kHz, 300kHz, 50kHz, etc.

[0051] In this design, multiple electrode traces 20 contact the light-emitting fiber 10 to form intersection points Q, and light emission is achieved only at intersection points Q. Therefore, by controlling the voltage applied to the light-emitting fiber 10 and the electrode traces 20, the light emission at different intersection points Q can be controlled. That is, by energizing specific pixels, the pixels are illuminated, and the desired stereoscopic image is formed from the three-dimensional pixels. Simultaneously, by adjusting the arrangement density of the light-emitting fiber 10 and the electrode traces 20, the resolution of the 3D display device 100 can be adjusted.

[0052] Please continue reading. Figure 3 In this embodiment, the luminescent material 13 comprises a plurality of luminescent particles. The luminescent particles are uniformly doped in the insulating dielectric layer 12. The doping concentration of the luminescent material 13 is between 1 mg / mL and 1000 mg / mL. For example, the doping concentration of the luminescent material 13 can be 1 mg / mL, 10 mg / mL, 100 mg / mL, 500 mg / mL, 800 mg / mL, 1000 mg / mL, etc., which will not be elaborated here.

[0053] Since the particle size of the light-emitting particles is generally small, in this embodiment, the light-emitting particles are directly doped into the insulating dielectric layer 12, which can further improve the transparency of the light-emitting fiber 10.

[0054] Please also refer to Figure 2 and Figure 5 , Figure 5 yes Figure 2 The diagram shows a second cross-sectional view of the luminescent fiber along point AA'. (Compared to...) Figure 3 The difference in the luminescent fiber 10 shown is that, in this embodiment, the luminescent material 13 is a luminescent layer 131. The insulating dielectric layer 12 includes a first dielectric layer 121 and a second dielectric layer 122. The luminescent layer 131, the first dielectric layer 121, and the second dielectric layer 122 are all coaxially disposed. The first dielectric layer 121 covers the outside of the conductive layer 11. The luminescent layer 131 covers the outside of the first dielectric layer 121. The second dielectric layer 122 covers the outside of the luminescent layer 131.

[0055] In this embodiment, a light-emitting layer 131 is provided in the light-emitting fiber 10, which allows for a wider range of material choices for the insulating dielectric layer 12, eliminating the need to consider the dispersion of light-emitting particles. Furthermore, the light-emitting layer 131 completely covers the first conductive layer 11, ensuring that the light-emitting fiber 10 is conductive throughout, further improving the pixel density of the 3D display device 100.

[0056] In this application, the number of light-emitting fibers 10 and electrode traces 20 can be designed according to the size and resolution of the 3D display device 100, and this application does not make specific limitations in this regard.

[0057] In this application, multiple light-emitting fibers 10 can extend in the same direction or in different directions, as long as any two light-emitting fibers 10 in the 3D display device 100 do not intersect. Each electrode trace 20 can contact and intersect with one light-emitting fiber 10 or multiple light-emitting fibers 10, depending on the arrangement of the light-emitting fibers 10 and the electrode trace 20. Furthermore, the electrode trace 20 can intersect the light-emitting fibers 10 perpendicularly or only intersect without being perpendicular.

[0058] For details, please continue reading. Figure 1 In some embodiments of this application, the 3D display device 100 has a plurality of parallel display planes 101 along the first direction Z. Within each display plane 101, a plurality of light-emitting fibers 10 are arranged along the second direction X. A plurality of electrode traces 20 are arranged along the third direction Y. The second direction X and the third direction Y intersect. Both the second direction X and the third direction Y are perpendicular to the first direction Z.

[0059] In this embodiment, the light-emitting fibers 10 and electrode traces 20 are regularly arranged in space along the first direction Z, the second direction X, and the third direction Y, thereby obtaining a regularly arranged pixel matrix. The regularly arranged pixels make the brightness of the 3D display device 100 more uniform, thus achieving a better display effect. Furthermore, because the pixels are evenly arranged, it is easier to control the light emission of the pixels by controlling the voltage applied to the corresponding light-emitting fibers 10 and electrode traces 20, avoiding interference between the driving voltage signals. In addition, when the 3D display device 100 is a transparent display device, the regularly arranged light-emitting fibers 10 and electrode traces 20 can further improve the aesthetic appearance of the 3D display device 100.

[0060] Optionally, the second direction X is perpendicular to the third direction Y. That is, the light-emitting fiber 10 intersects the electrode wiring 20 perpendicularly. This embodiment can further improve the regularity of the arrangement of the light-emitting fiber 10 and the electrode wiring 20. In addition, since the light-emitting fiber 10 and the electrode wiring 20 can be arranged in a braided manner, the perpendicular intersection of the light-emitting fiber 10 and the electrode wiring 20 can improve the stability between the light-emitting fiber 10 and the electrode wiring 20 and prevent swaying between them.

[0061] In some embodiments of this application, within each display plane 101, multiple electrode traces 20 can cover the corresponding light-emitting fibers 10 to achieve contact and intersection with the light-emitting fibers 10. This embodiment can simplify the structure of the light-emitting fibers 10 and the electrode traces 20, thereby simplifying the manufacturing process.

[0062] In other embodiments of this application, within each display plane 101, multiple electrode traces 20 and multiple corresponding light-emitting fibers 10 can be woven together to achieve contact and intersection between the electrode traces 20 and the light-emitting fibers 10. This embodiment can improve the structural stability of the light-emitting fibers 10 and the electrode traces 20, and prevent the light-emitting fibers 10 and the electrode traces 20 from shaking during the movement of the 3D display device 100, thus avoiding poor contact.

[0063] It is understood that the 3D display device 100 provided in this application is used to display stereoscopic images. The stereoscopic image may be composed of the same color or different colors.

[0064] In this application, multiple light-emitting fibers 10 can display the same color. The brightness of different intersection points Q can be controlled simply by controlling the voltage applied to the light-emitting fibers 10 and the electrode traces 20, thereby achieving a stereoscopic image display.

[0065] Of course, in this application, adjacent light-emitting fibers 10 can emit light of different colors. This arrangement, through the dual display effects of color and brightness, makes the images displayed by the 3D display device 100 more three-dimensional.

[0066] Furthermore, in this embodiment, the light-emitting fiber 10 includes red, green, and blue light-emitting fibers. Within the same display plane 101, the red, green, and blue light-emitting fibers are arranged repeatedly in any combination. In adjacent display planes 101, the light-emitting fibers are arranged in a one-to-one correspondence. This results in a regularly arranged color pixel matrix, enabling the display of a color stereoscopic image.

[0067] Specifically, within the same display plane 101, red light-emitting fibers, green light-emitting fibers, and blue light-emitting fibers can be repeatedly arranged in any combination of RGB, RBG, BGR, BRG, GRB, GBR, etc. This application does not impose any specific limitations on this.

[0068] Of course, this application is not limited to this. The 3D display device 100 can also add white pixels to the RGB pixel arrangement to form an RGBW pixel arrangement architecture. That is, white light-emitting fibers are added. The addition of white light-emitting fibers significantly improves the light transmittance of the 3D display device 100, and the brightness of the 3D display device 100 is also improved based on the traditional RGB pixel arrangement architecture.

[0069] Please continue reading. Figure 1 In this application, the 3D display device 100 further includes a first substrate 31 and a second substrate 32 disposed opposite to each other, and a third substrate 33 and a fourth substrate 34 disposed opposite to each other. The first substrate 31, the second substrate 32, the third substrate 33 and the fourth substrate 34 are connected end to end.

[0070] In this configuration, one end of each light-emitting fiber 10 is fixed to the first substrate 31. The other end of each light-emitting fiber 10 is fixed to the second substrate 32. One end of each electrode trace 20 is fixed to the third substrate 33. The other end of each electrode trace 20 is fixed to the fourth substrate 34.

[0071] The first substrate 31, the second substrate 32, the third substrate 33, and the fourth substrate 34 can be made of transparent material so that the stereoscopic image can be viewed from different angles outside the 3D display device 100. For example, the first substrate 31, the second substrate 32, the third substrate 33, and the fourth substrate 34 can be transparent glass substrates.

[0072] The planar structures of the first substrate 31, the second substrate 32, the third substrate 33, and the fourth substrate 34 can be rectangular, square, arc-shaped, etc. The three-dimensional structure formed by connecting the first substrate 31, the second substrate 32, the third substrate 33, and the fourth substrate 34 end-to-end can be a cube, a cuboid, or a sphere. This allows the 3D display device 100 to appear as a cube, cuboid, or sphere when not emitting light, improving the aesthetic appearance of the 3D display device 100.

[0073] The light-emitting fiber 10 can be fixed between the first substrate 31 and the second substrate 32 by means of adhesive, clip, etc. The electrode wiring 20 can also be fixed between the third substrate 33 and the fourth substrate 34 by means of adhesive, clip, etc.

[0074] This application, by setting a first substrate 31, a second substrate 32, a third substrate 33, and a fourth substrate 34, can stably fix the light-emitting fiber 10 and the electrode wiring 20 in the 3D display device 100, avoiding the problem of poor contact caused by the light-emitting fiber 10 and the electrode wiring 20 shaking during the movement of the 3D display device 100. This improves the display stability of the 3D display device 100.

[0075] Furthermore, in this application, the 3D display device 100 also includes a fifth substrate 35 and a sixth substrate 36 disposed opposite to each other. The first substrate 31, the second substrate 32, the third substrate 33, the fourth substrate 34, the fifth substrate 35, and the sixth substrate 36 form a closed structure. Both the fifth substrate 35 and the sixth substrate 36 are made of transparent material.

[0076] This application provides a fifth substrate 35 and a sixth substrate 36, thereby forming a closed structure using the first substrate 31, the second substrate 32, the third substrate 33, the fourth substrate 34, the fifth substrate 35, and the sixth substrate 36, serving as the outer casing of the 3D display device 100, which can protect the display structure within the 3D display device 100. This further improves the stability of the 3D display device 100.

[0077] Please see Figure 6 , Figure 6 This is a second structural schematic diagram of the 3D display device provided in this application. Figure 1 The difference in the 3D display device 100 shown is that, in this embodiment, a first via 310 is provided on the first substrate 31 and / or the second substrate 32. A second via 330 is provided on the third substrate 33 and / or the fourth substrate 34. Each light-emitting fiber 10 extends to the outside of the first substrate 31 or the second substrate 32 through the first via 310. Each electrode trace 20 extends to the outside of the third substrate 33 or the fourth substrate 34 through the second via 330.

[0078] It is understood that this application requires applying voltage to the light-emitting fiber 10 and the electrode trace 20 to cause the corresponding intersection point Q to emit light, thereby achieving a stereoscopic display effect. Therefore, the ends of the light-emitting fiber 10 and the electrode trace 20 need to be led out to facilitate the application of voltage.

[0079] Specifically, when the resolution of the 3D display device 100 is low, the distribution density of the light-emitting fibers 10 is low. Therefore, the first via 310 can be provided only on the first substrate 31 or the second substrate 32 to lead the ends of the light-emitting fibers 10 to the outside of the first substrate 31 or the second substrate 32. Similarly, the distribution density of the electrode traces 20 is low. Therefore, the second via 330 can be provided only on the third substrate 33 or the fourth substrate 34 to lead the ends of the light-emitting fibers 10 to the outside of the third substrate 33 or the fourth substrate 34. This ensures that the extended light-emitting fibers 10 or electrode traces 20 are located on only one side of the 3D display device 100, improving the concentration of the circuitry.

[0080] When the resolution of the 3D display device 100 is high, the distribution density of the light-emitting fibers 10 is large. Due to the limited size of the first substrate 31 or the second substrate 32, this application respectively provides a plurality of first vias 310 on the first substrate 31 and the second substrate 32. On the one hand, this provides a sufficient number of first vias 310. On the other hand, it avoids cross-short circuits between adjacent light-emitting fibers 10 when they pass through the first vias 310. Similarly, the arrangement of the second vias 330 is also similar, and will not be described further here.

[0081] The diameter of the first via 310 is adapted to the radial dimension of the cross-section of the light-emitting fiber 10. This ensures that the light-emitting fiber 10 can pass smoothly through the first via 310 while also stably securing it within it. Similarly, the diameter of the second via 330 is adapted to the radial dimension of the cross-section of the electrode trace 20, which will not be elaborated further here.

[0082] Furthermore, a driving chip 40 may be disposed on the outer side of the first substrate 31, the second substrate 32, the third substrate 33, and the fourth substrate 34. The driving chip 40 is connected to the corresponding light-emitting fiber 10 or electrode trace 20 to provide a driving voltage to the light-emitting fiber 10 or electrode trace 20. It should be noted that... Figure 6 For illustrative purposes only, not all first vias 310, second vias 330, light-emitting fibers 10 extending to the outside, and electrode traces 20 are shown, but this should not be construed as limiting the scope of this application.

[0083] Optional, please refer to Figure 7 , Figure 7 This is a schematic diagram of a structure of the first substrate in the 3D display device provided in this application. Figure 6 The difference in the 3D display device 100 shown is that, in this embodiment, the first substrate 31 includes a substrate 311, a first conductive pin 312, and a first connection trace 313. One end of each light-emitting fiber 10 is electrically connected to the corresponding first conductive pin 312. The light-emitting fiber 10 is connected to the first connection trace 313 through the first conductive pin 312.

[0084] Furthermore, the 3D display device 100 also includes a driver chip 40. The driver chip 40 is connected to the light-emitting fiber 10 and the electrode wiring 20 respectively, and is used to provide driving voltage to the light-emitting fiber 10 and the electrode wiring 20.

[0085] The light-emitting fiber 10 can be connected to the same driving chip 40 as the electrode wiring 20. Alternatively, the light-emitting fiber 10 and the electrode wiring 20 can be connected to different driving chips 40. The number of driving chips 40 can be set according to the number of light-emitting fibers 10 and electrode wiring 20. The driving chips 40 can be disposed on the first substrate 31, the second substrate 32, the third substrate 33, or the fourth substrate 34, or at other locations within the 3D display device 100; this application does not specifically limit their placement.

[0086] One end of each light-emitting fiber 10 can be electrically connected to the first conductive pin 312 via conductive adhesive. The first conductive pin 312, the first connection trace 313, and the driving chip 40 can be disposed on the inner or outer sidewall of the first substrate 31. When the first conductive pin 312, the first connection trace 313, and the driving chip 40 are disposed on the outer sidewall of the first substrate 31, the first conductive pin 312 penetrates through the first substrate 31 to achieve the connection between the light-emitting fiber 10 and the first connection trace 313.

[0087] In this embodiment, by providing a first conductive pin 312 on the first substrate 31, the light-emitting fiber 10 can be prevented from being led out of the outside of the first substrate 31, thereby better protecting the light-emitting fiber 10 and improving the lifespan of the 3D display device 100.

[0088] Of course, the second substrate 32 may also be provided with the first conductive pin 312 and the first connection trace 313. For details, please refer to the structure of the first substrate 31, which will not be described in detail here.

[0089] Similarly, please refer to Figure 8 , Figure 8 This is a schematic diagram of a third substrate in a 3D display device provided in this application. In this embodiment, the third substrate 33 includes a substrate 331, a second conductive pin 332, and a second connection trace 333. One end of each electrode trace 20 is electrically connected to the corresponding second conductive pin 332. The electrode trace 20 is connected to the second connection trace 333 through the second conductive pin 332.

[0090] One end of each electrode trace 20 can be electrically connected to the second conductive pin 332 via conductive adhesive. The second conductive pin 332, the second connection trace 333, and the driver chip 40 can be disposed on the inner or outer sidewall of the third substrate 33. When the second conductive pin 332, the second connection trace 333, and the driver chip 40 are disposed on the outer sidewall of the third substrate 33, the second conductive pin 332 penetrates through the third substrate 33 to achieve the connection between the electrode trace 20 and the second connection trace 333.

[0091] In this embodiment, by providing a second conductive pin 332 on the third substrate 33, the electrode trace 20 can be prevented from being led out of the outside of the third substrate 33, thereby better protecting the electrode trace 20 and improving the lifespan of the 3D display device 100.

[0092] Of course, a second conductive pin 332 and a second connecting trace 333 may also be provided on the fourth substrate 34. For details, please refer to the structure of the third substrate 33, which will not be described in detail here.

[0093] The 3D display device provided in this application has been described in detail above. Specific examples have been used to illustrate the principles and implementation methods of this application. The description of the above embodiments is only for the purpose of helping to understand the method and core ideas of this application. At the same time, for those skilled in the art, there will be changes in the specific implementation methods and application scope based on the ideas of this application. Therefore, the content of this specification should not be construed as a limitation of this application.

Claims

1. A 3D display device, characterized in that, include: Multiple light-emitting fibers are arranged at intervals and disposed in different planes. Each light-emitting fiber includes a conductive layer and an insulating dielectric layer arranged coaxially from the inside to the outside. The insulating dielectric layer contains a light-emitting material. Multiple electrode traces are arranged at intervals and are cross-contact with the corresponding light-emitting fibers to form a three-dimensional network structure. The 3D display device further includes a first substrate and a second substrate disposed opposite to each other, and a third substrate and a fourth substrate disposed opposite to each other, wherein the first substrate, the second substrate, the third substrate and the fourth substrate are connected end to end; One end of each of the light-emitting fibers is fixed on the first substrate, the other end of each of the light-emitting fibers is fixed on the second substrate, one end of each of the electrode traces is fixed on the third substrate, and the other end of each of the electrode traces is fixed on the fourth substrate. The first substrate and the second substrate are provided with a first via, and the third substrate and the fourth substrate are provided with a second via. Each of the light-emitting fibers extends to the outside of the first substrate or the second substrate through the first via, and each of the electrode traces extends to the outside of the third substrate or the fourth substrate through the second via, so as to apply an alternating current signal to the light-emitting fibers and the electrode traces. The first substrate and / or the second substrate includes a first conductive pin, the third substrate and / or the fourth substrate includes a second conductive pin, one end of each light-emitting fiber is electrically connected to the corresponding first conductive pin, and one end of each electrode trace is electrically connected to the corresponding second conductive pin. The 3D display device further includes a driving chip, which is connected to the light-emitting fiber through the first conductive pin and to the electrode trace through the second conductive pin. The driving chip is used to provide driving voltage to the corresponding light-emitting fiber and the electrode trace. The light-emitting fibers and the electrode traces are arranged in a cross-braided manner; each intersection point between multiple light-emitting fibers and multiple electrode traces is a pixel point, and the light emission state of each intersection point is controlled by the driving voltage connected to the corresponding light-emitting fiber and the corresponding electrode trace respectively.

2. The 3D display device according to claim 1, characterized in that, Along the first direction, the 3D display device has multiple parallel display planes; Within each of the display planes, multiple light-emitting fibers are arranged along a second direction, and multiple electrode traces are arranged along a third direction. The second direction and the third direction intersect, and both the second direction and the third direction are perpendicular to the first direction.

3. The 3D display device according to claim 2, characterized in that, Adjacent luminescent fibers emit light of different colors.

4. The 3D display device according to claim 2, characterized in that, The luminescent fibers include red luminescent fibers, green luminescent fibers, and blue luminescent fibers; Within the same display plane, the red light-emitting fibers, the green light-emitting fibers, and the blue light-emitting fibers are repeatedly arranged in any combination; within adjacent display planes, the light-emitting fibers are arranged in a one-to-one correspondence.

5. The 3D display device according to claim 1, characterized in that, The 3D display device further includes a fifth substrate and a sixth substrate disposed opposite to each other, and the first substrate, the second substrate, the third substrate, the fourth substrate, the fifth substrate and the sixth substrate form a closed structure; Both the fifth substrate and the sixth substrate are made of transparent material.

6. The 3D display device according to any one of claims 1-4, characterized in that, Both the conductive layer and the electrode traces are made of transparent and / or stretchable materials.

7. The 3D display device according to claim 1, characterized in that, The luminescent material comprises multiple luminescent particles, which are doped into the insulating dielectric layer.

8. The 3D display device according to claim 1, characterized in that, The luminescent material includes a luminescent layer, and the insulating dielectric layer includes a first insulating dielectric layer and a second insulating dielectric layer. The first insulating dielectric layer covers the outside of the conductive layer, the luminescent layer covers the outside of the first insulating dielectric layer, and the second insulating dielectric layer covers the outside of the luminescent layer.

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