Light emitting device and display apparatus
By using transparent protrusions and multi-layer reflective structures in LED modules, the problems of low light transmittance and insufficient light uniformity caused by traditional diffused particles are solved, achieving a combination of high-efficiency light uniformity and transmittance.
Patent Information
- Application Number
- CN202511168147.6
- Authority / Receiving Office
- CN · China
- Patent Type
- Applications(China)
- Current Assignee / Owner
- Filing Date
- 2025-08-20
- Publication Date
- 2025-12-12
AI Technical Summary
In traditional LED modules, the high absorption rate of diffused particles results in low light transmittance and limited improvement in light uniformity.
The structure employs a transparent protrusion and a multi-layered reflective structure. The transparent protrusion gradually narrows and a second reflective layer is set on the top surface. Part of the light is reflected back to the driving substrate and then reflected back to the light emission direction through the first reflective layer. Combined with the light diverging from the side of the transparent protrusion, the uniformity of light emission is improved and the light absorption rate is reduced.
It achieves a balance between high light uniformity and light transmittance, and compared with the traditional diffused particle method, it reduces light absorption and improves overall light efficiency.
Smart Images
Figure CN121127010A_ABST
Abstract
Description
TECHNICAL FIELD
[0001] The present application relates to the technical field of light-emitting devices, in particular to a light-emitting device and a display device. BACKGROUND
[0002] In a conventional LED module, light emitted by an LED lamp bead is usually diffused by a diffusion layer to increase the light-emitting uniformity of the LED module. In a conventional diffusion layer, diffusion particles are dispersed in a diffusion film to scatter light incident into the diffusion layer. However, the diffusion particles have limited effect on improving the light-emitting uniformity of the LED module, and the diffusion particles usually have a high light absorption rate, thereby affecting the light transmittance of the LED module. SUMMARY
[0003] Therefore, it is necessary to provide a light-emitting device and a display device. The light-emitting device of the present application can simultaneously achieve high light-emitting uniformity and light transmittance.
[0004] In a first aspect, the present application provides a light-emitting device, comprising: a driving substrate, a light-emitting element, a first reflective layer, an encapsulation layer, a substrate layer, a transparent protrusion, and a second reflective layer.
[0005] The driving substrate has a working surface, and the light-emitting element and the first reflective layer are arranged on the working surface.
[0006] The encapsulation layer is arranged on the driving substrate, and the encapsulation layer covers the light-emitting element and the first reflective layer.
[0007] The substrate layer is arranged on a surface of the encapsulation layer away from the driving substrate; the transparent protrusion is arranged on a surface of the substrate layer away from the driving substrate; the transparent protrusion gradually narrows in a direction away from the substrate layer; and the second reflective layer is arranged on a surface of the transparent protrusion away from the substrate layer.
[0008] In some embodiments, the transparent protrusion is a plurality of transparent protrusions, and the plurality of transparent protrusions are arranged in a matrix on the surface of the substrate layer away from the driving substrate.
[0009] In some embodiments, the plurality of transparent protrusions cover the surface of the substrate layer away from the driving substrate.
[0010] In some embodiments, the total area of the orthographic projection of the second reflective layer on the working surface accounts for 20% to 50% of the total area of the orthographic projection of the transparent protrusion on the working surface.
[0011] In some embodiments, the transparent protrusion has a height of 0.1mm to 2mm.
[0012] In some embodiments, the first reflective layer is disposed outside the area where the light emitting element is located, and the first reflective layer covers the portion of the working surface which is not covered by the light emitting element.
[0013] In some embodiments, the material of the first reflective layer comprises a reflective base material, and the reflective base material comprises at least one of epoxy resin, silicone, polyurethane and acrylic resin.
[0014] In some embodiments, the material of the first reflective layer further comprises a reflective filler dispersed in the reflective base material, and the reflective filler comprises at least one of aerogel, glass microbead, barium sulfate and titanium dioxide.
[0015] In some embodiments, the reflectivity of the first reflective layer is 80% to 98%.
[0016] In some embodiments, the thickness of the first reflective layer is 10μm to 100μm.
[0017] In some embodiments, the reflectivity of the second reflective layer is 30% to 70%.
[0018] In some embodiments, the light transmittance of the second reflective layer is 30% to 70%.
[0019] In some embodiments, the thickness of the second reflective layer is 1μm to 10μm.
[0020] In a second aspect, the present application provides a display device comprising the light emitting device as described in any one of the above.
[0021] The light emitting device has a transparent protruding part with a structure gradually narrowing in a direction away from the substrate layer. The second reflecting layer arranged on the top surface of the transparent protruding part can reflect the light rays emitted from the light emitting element and exiting from the top surface of the transparent protruding part back to the driving substrate, and then the first reflecting layer arranged on the driving substrate can reflect the reflected light rays back to the light emitting direction, and then the light rays are emitted from the side surface of the transparent protruding part. The light emitting device with the above structure can partially reflect the light rays emitted from the light emitting element, and at the same time, the light rays emitted from the side surface of the transparent protruding part after being reflected by the first reflecting layer are diffused, so that the brightness of the area without the light emitting element can be improved, and the uniformity of the overall light emission of the light emitting device can be improved. The light emitting device with the cooperation of the transparent protruding part, the first reflecting layer and the second reflecting layer has a lower light absorption rate compared with the light diffusion mode by using diffusion particles, and at the same time, the uniformity of the light emission and the light transmittance of the light emitting device can be improved. BRIEF DESCRIPTION OF DRAWINGS
[0022] Figure 1 A structure schematic diagram of the light emitting device provided by an embodiment of the present application is shown in the figure.
[0023] Figure 2 A partial structure schematic diagram of the light emitting device provided by an embodiment of the present application is shown in the figure. Figure 2 Figure a is a top view structure schematic diagram of the transparent protruding part, Figure 2 Figure b is a front view structure schematic diagram of the transparent protruding part.
[0024] Explanation of reference signs
[0025] 10, driving substrate; 20, light emitting element; 30, first reflecting layer; 40, encapsulation layer; 50, substrate layer; 60, transparent protruding part; 70, second reflecting layer. DETAILED DESCRIPTION
[0026] In order to make the above-mentioned purposes, features and advantages of the present application more obvious and easy to understand, the specific embodiments of the present application are described in detail below. In the following description, a lot of specific details are described in order to fully understand the present application. However, the present application can be implemented in many other ways different from the description herein, and those skilled in the art can make similar improvements without departing from the connotation of the present application, so the present application is not limited by the specific embodiments disclosed below.
[0027] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this application belongs. The terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting of the application. The term "and / or" as used herein includes any and all combinations of one or more of the associated listed items.
[0028] In the description of this application, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", etc., indicating the orientation or positional relationship based on the orientation or positional relationship shown in the accompanying drawings, are only for the convenience of describing this application and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, or be constructed and operated in a specific orientation, and therefore should not be construed as a limitation of this application.
[0029] 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 technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include at least one of that feature. In the description of this application, "multiple" means at least two, such as two, three, etc., unless otherwise explicitly specified.
[0030] In this application, unless otherwise expressly specified and limited, the terms "installation," "connection," "joining," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral part; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; they can refer to the internal communication of two components or the interaction between two components, unless otherwise expressly limited. Those skilled in the art can understand the specific meaning of the above terms in this application according to the specific circumstances.
[0031] Reference Figure 1As shown, one embodiment of this application provides a light-emitting device, including: a driving substrate 10, a light-emitting element 20, a first reflective layer 30, an encapsulation layer 40, a substrate layer 50, a transparent protrusion 60, and a second reflective layer 70. The driving substrate 10 has a working surface, on which the light-emitting element 20 and the first reflective layer 30 are disposed. The encapsulation layer 40 is disposed on the driving substrate 10, covering the light-emitting element 20 and the first reflective layer 30. The substrate layer 50 is disposed on the surface of the encapsulation layer 40 away from the driving substrate 10. The transparent protrusion 60 is disposed on the surface of the substrate layer 50 away from the driving substrate 10. The transparent protrusion 60 gradually narrows in the direction away from the substrate layer 50. The second reflective layer 70 is disposed on the surface of the transparent protrusion 60 away from the substrate layer 50.
[0032] In the aforementioned light-emitting device, the transparent protrusion 60 has a structure that gradually narrows in the direction away from the substrate layer 50. The second reflective layer 70 disposed on the top surface of the transparent protrusion 60 can reflect a portion of the light emitted from the light-emitting element 20 that exits from the top surface of the transparent protrusion 60 back to the driving substrate 10. Then, the reflected light is reflected back to the light-emitting direction by the first reflective layer 30 disposed on the driving substrate 10, and then emitted from the side of the transparent protrusion 60. The light-emitting device with this structure can partially reflect the light emitted by the light-emitting element 20 to reduce the brightness in the light-emitting direction of the light-emitting element 20. Simultaneously, the side of the transparent protrusion 60 diffuses the emitted light reflected by the first reflective layer, thereby increasing the brightness of areas where the light-emitting element 20 is not disposed, and thus improving the overall uniformity of light emission from the light-emitting device. In the aforementioned light-emitting device, the combination of the transparent protrusion 60, the first reflective layer 30, and the second reflective layer 70, compared to the method of light diffusion by diffusing particles, achieves improved overall light emission uniformity while exhibiting lower light absorption. In other words, the light-emitting device of this application can simultaneously achieve high light emission uniformity and high light transmittance.
[0033] In one embodiment, a plurality of light-emitting elements 20 are spaced apart on the surface of the driving substrate 10.
[0034] In some of these embodiments, the light-emitting element 20 includes an LED chip.
[0035] In some embodiments, the light-emitting element 20 includes a MIP (Mini / Micro LED in Package) lamp bead.
[0036] In some embodiments, the light-emitting element 20 includes SMT (discrete surface mount) LEDs.
[0037] In some embodiments, the material of the substrate layer 50 includes at least one of PET and glass.
[0038] In some embodiments, the thickness of the substrate layer 50 is 0.4 mm to 1 mm.
[0039] Optionally, the thickness of the substrate layer 50 is 0.4 mm, 0.45 mm, 0.5 mm, 0.55 mm, 0.6 mm, 0.65 mm, 0.7 mm, 0.75 mm, 0.8 mm, 0.85 mm, 0.9 mm, 0.95 mm, or 1 mm, or the thickness of the substrate layer 50 may be within any two of the above-mentioned thicknesses.
[0040] Reference Figure 2 As shown, Figure 2 This is a partial structural schematic diagram of a light-emitting device provided in one embodiment of this application; wherein, Figure 2 Figure 'a' is a top view of the transparent protrusion 60. Figure 2 Figure b is a schematic diagram of the main structure of the transparent protrusion 60. In some embodiments, there are multiple transparent protrusions 60, which are arranged in a matrix on the surface of the substrate layer 50 away from the driving substrate 10.
[0041] In some embodiments, a plurality of transparent protrusions 60 cover the surface of the substrate layer 50 away from the driving substrate 10.
[0042] In some embodiments, the transparent protrusions 60 are of the same shape and size.
[0043] In some embodiments, the transparent protrusion 60 is shaped as at least one of a frustum and a truncated cone.
[0044] In some embodiments, the transparent protrusion 60 is made of at least one of PMMA, transparent nylon, PET, PS, and glass. The transparent protrusion 60 can be fabricated by means of embossing, printing, or photolithography.
[0045] In some embodiments, the second reflective layer 70 covers the surface of the transparent protrusion 60 that is away from the substrate layer 50.
[0046] In some embodiments, the total area of the orthographic projection of the second reflective layer 70 onto the working surface accounts for 20% to 50% of the total area of the orthographic projection of the transparent protrusion 60 onto the working surface.
[0047] Understandably, the percentage of the total area of the orthographic projection of the second reflective layer 70 onto the working surface relative to the total area of the orthographic projection of the transparent protrusion 60 onto the working surface can be used to characterize the area ratio between the region on the light-emitting surface of the light-emitting device where the second reflective layer 70 is provided and the region where the second reflective layer 70 is not provided. Within the range of the percentage of the total area of the orthographic projection of the second reflective layer 70 onto the working surface relative to the total area of the orthographic projection of the transparent protrusion 60 onto the working surface, the light-emitting device achieves both high light emission uniformity and high light transmittance. When the percentage of the total area of the orthographic projection of the second reflective layer 70 onto the working surface relative to the total area of the orthographic projection of the transparent protrusion 60 onto the working surface is too small, the effect on improving the light emission uniformity of the light-emitting device is relatively limited. When the percentage of the total area of the orthographic projection of the second reflective layer 70 onto the working surface relative to the total area of the orthographic projection of the transparent protrusion 60 onto the working surface is too large, it may affect the light emission rate of the light-emitting device.
[0048] Optionally, the percentage of the total area of the orthographic projection of the second reflective layer 70 on the working surface to the total area of the orthographic projection of the transparent protrusion 60 on the working surface is 20%, 22%, 24%, 26%, 28%, 30%, 32%, 34%, 36%, 38%, 40%, 42%, 44%, 46%, 48%, or 50%, or the percentage of the total area of the orthographic projection of the second reflective layer 70 on the working surface to the total area of the orthographic projection of the transparent protrusion 60 on the working surface may be within the range of any two of the above percentages.
[0049] In some embodiments, the height of the transparent protrusion 60 is 0.1 mm to 2 mm.
[0050] Optionally, the height of the transparent protrusion 60 is 0.1mm, 0.2mm, 0.4mm, 0.5mm, 0.6mm, 0.8mm, 1mm, 1.2mm, 1.5mm, 1.7mm, 1.8mm or 2mm, or the height of the transparent protrusion 60 may be within any two of the above-mentioned heights.
[0051] In some embodiments, the first reflective layer 30 is disposed outside the area where the light-emitting element 20 is located, and the first reflective layer 30 covers the portion of the working surface not covered by the light-emitting element 20.
[0052] It is understood that the material of the first reflective layer 30 can be any type of film layer that satisfies the reflectivity requirement. For example, it can be a metal film deposited by physical vapor deposition, a non-metal film deposited by chemical vapor deposition, a sprayed pigment, or a printed ink, etc.
[0053] In some embodiments, the material of the first reflective layer 30 includes a reflective substrate, which includes at least one of epoxy resin, silicone resin, polyurethane, and acrylic resin.
[0054] In some embodiments, the material of the first reflective layer 30 further includes a reflective filler dispersed in the reflective substrate. The reflective filler includes at least one selected from aerogel, glass microspheres, barium sulfate, and titanium dioxide.
[0055] In some embodiments, the reflectivity of the first reflective layer 30 is 80% to 98%.
[0056] Within the range of reflectivity of the first reflective layer 30, the light-emitting device achieves both high light emission uniformity and high light transmittance. Optionally, the reflectivity of the first reflective layer 30 is 80%, 81%, 82%, 83%, 84%, 85%, 86%, 87%, 88%, 89%, 90%, 91%, 92%, 93%, 94%, 95%, 96%, 97%, or 98%, or the reflectivity of the first reflective layer 30 can be within the range of any two of the above reflectivities.
[0057] In some embodiments, the thickness of the first reflective layer 30 is 10 μm to 100 μm.
[0058] Within the range of the thickness of the first reflective layer 30, the light-emitting device can achieve both high light emission uniformity and high light transmittance. Optionally, the thickness of the first reflective layer 30 can be 10μm, 15μm, 20μm, 25μm, 30μm, 35μm, 40μm, 45μm, 50μm, 55μm, 60μm, 65μm, 70μm, 75μm, 80μm, 85μm, 90μm, 95μm, or 100μm, or the thickness of the first reflective layer 30 can be within any two of the above-mentioned thicknesses.
[0059] It is understood that the material of the second reflective layer 70 can be any of the film layers that satisfy the above-mentioned reflectivity and transmittance. For example, it can be a metal film deposited by physical vapor deposition, a non-metal film deposited by chemical vapor deposition, sprayed black pigment, or printed ink, etc.
[0060] In some embodiments, the reflectivity of the second reflective layer 70 is 30% to 70%.
[0061] Within the range of reflectivity of the second reflective layer 70, the light-emitting device achieves both high light emission uniformity and high light transmittance. Optionally, the reflectivity of the second reflective layer 70 is 30%, 32%, 35%, 38%, 40%, 42%, 45%, 48%, 50%, 52%, 55%, 58%, 60%, 62%, 65%, 68%, or 70%, or the reflectivity of the second reflective layer 70 can be within the range of any two of the above reflectivities.
[0062] In some embodiments, the second reflective layer 70 is prepared by mask spraying.
[0063] In some embodiments, the transmittance of the second reflective layer 70 is 30% to 70%.
[0064] Within the range of the transmittance of the second reflective layer 70, the light-emitting device achieves both high light emission uniformity and high light transmittance. Optionally, the transmittance of the second reflective layer 70 is 30%, 32%, 35%, 38%, 40%, 42%, 45%, 48%, 50%, 52%, 55%, 58%, 60%, 62%, 65%, 68%, or 70%, or the transmittance of the second reflective layer 70 can be within the range of any two of the above transmittances.
[0065] In some embodiments, the thickness of the second reflective layer 70 is 1 μm to 10 μm.
[0066] Within the range of the thickness of the second reflective layer 70, the light-emitting device achieves both high light emission uniformity and high light transmittance. Optionally, the thickness of the second reflective layer 70 can be 1 μm, 1.5 μm, 2 μm, 2.5 μm, 3 μm, 3.5 μm, 4 μm, 4.5 μm, 5 μm, 5.5 μm, 6 μm, 6.5 μm, 7 μm, 7.5 μm, 8 μm, 8.5 μm, 9 μm, 9.5 μm, or 10 μm, or the thickness of the second reflective layer 70 can be within any two of the above-mentioned thicknesses.
[0067] In some embodiments, the thickness of the encapsulation layer 40 is 200 μm to 1000 μm.
[0068] Optionally, the thickness of the encapsulation layer 40 is 200μm, 250μm, 300μm, 350μm, 400μm, 450μm, 500μm, 550μm, 600μm, 650μm, 700μm, 750μm, 800μm, 850μm, 900μm, 950μm or 1000μm, or the thickness of the encapsulation layer 40 may be within any two of the above thicknesses.
[0069] In some embodiments, the driving substrate 10 includes a carrier plate, a metal circuit layer, and an insulating layer stacked together. The light-emitting element 20 and the first reflective layer 30 are disposed on the surface of the insulating layer away from the carrier plate. The light-emitting element 20 and the metal circuit layer are electrically connected.
[0070] In some embodiments, the carrier plate is selected from at least one of glass carrier plates, aluminum substrates, BT plates, epoxy resin plates, silicone resin plates, polyphthalamide plates, and ABF plates.
[0071] In some embodiments, the metal of the metal circuit layer includes at least one of copper, copper alloy, aluminum, aluminum alloy, silver, and silver alloy.
[0072] Refer again Figure 1 As shown, in some embodiments, the light-emitting device includes: a driving substrate 10, a light-emitting element 20, a first reflective layer 30, an encapsulation layer 40, a substrate layer 50, a transparent protrusion 60, and a second reflective layer 70. The driving substrate 10 has a working surface, on which the light-emitting element 20 and the first reflective layer 30 are disposed. A plurality of light-emitting elements 20 are spaced apart on the surface of the driving substrate 10. The encapsulation layer 40 is disposed on the driving substrate 10, covering the light-emitting element 20 and the first reflective layer 30. The substrate layer 50 is disposed on the surface of the encapsulation layer 40 away from the driving substrate 10. A plurality of transparent protrusions 60 are disposed on the surface of the substrate layer 50 away from the driving substrate 10, and the plurality of transparent protrusions 60 are arranged in a matrix on the surface of the substrate layer 50 away from the driving substrate 10, covering the surface of the substrate layer 50 away from the driving substrate 10. Each transparent protrusion 60 has the same shape and size, and the transparent protrusion 60 has a regular square frustum structure. The transparent protrusion 60 gradually narrows in the direction away from the substrate layer 50. A second reflective layer 70 is disposed on the surface of the transparent protrusion 60 away from the substrate layer 50. The second reflective layer 70 covers the surface of the transparent protrusion 60 away from the substrate layer 50, and the total area of the orthographic projection of the second reflective layer 70 onto the working surface accounts for 20% to 50% of the total area of the orthographic projection of the transparent protrusion 60 onto the working surface. A first reflective layer 30 is disposed outside the area where the light-emitting element 20 is located, and the first reflective layer 30 covers the portion of the working surface not covered by the light-emitting element 20. The reflectivity of the first reflective layer 30 is 80% to 98%. The reflectivity of the second reflective layer 70 is 30% to 70%. The light transmittance of the second reflective layer 70 is 30% to 70%.
[0073] In the aforementioned light-emitting device, the transparent protrusion 60 has a structure that gradually narrows in the direction away from the substrate layer 50. The second reflective layer 70 disposed on the top surface of the transparent protrusion 60 can reflect a portion of the light emitted from the light-emitting element 20 that exits from the top surface of the transparent protrusion 60 back to the driving substrate 10. Then, the reflected light is reflected back to the light-emitting direction by the first reflective layer 30 disposed on the driving substrate 10, and then emitted from the side of the transparent protrusion 60. The light-emitting device with this structure can partially reflect the light emitted by the light-emitting element 20 to reduce the brightness in the light-emitting direction of the light-emitting element 20. Simultaneously, the side of the transparent protrusion 60 diffuses the emitted light reflected by the first reflective layer, thereby increasing the brightness of areas where the light-emitting element 20 is not disposed, and thus improving the overall uniformity of light emission from the light-emitting device. In the aforementioned light-emitting device, the combination of the transparent protrusion 60, the first reflective layer 30, and the second reflective layer 70, compared to the method of light diffusion by diffusing particles, achieves improved overall light emission uniformity while exhibiting lower light absorption. In other words, the light-emitting device of this application can simultaneously achieve high light emission uniformity and high light transmittance.
[0074] Another embodiment of this application provides a method for fabricating a light-emitting device, comprising the following steps:
[0075] A substrate is provided, the substrate including a driving substrate 10 and a light-emitting element 20 disposed on the working surface of the driving substrate 10;
[0076] A first reflective layer 30 is formed on the portion of the working surface where no light-emitting element 20 is provided;
[0077] An encapsulation layer 40 is formed on the driving substrate 10, and the encapsulation layer 40 covers the light-emitting element 20 and the base color layer;
[0078] A substrate layer 50 is provided, and a transparent protrusion 60 is formed on the surface of the substrate layer 50;
[0079] A second reflective layer 70 is formed on the top surface of the transparent protrusion 60;
[0080] The surface of the substrate layer 50 without the transparent protrusions 60 is attached to the surface of the encapsulation layer 40 away from the driving substrate 10.
[0081] Another embodiment of this application provides a display device including any of the light-emitting devices described above.
[0082] 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.
[0083] The embodiments described above are merely illustrative of several implementation methods of this application, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the invention patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this application, and these all fall within the protection scope of this application. Therefore, the protection scope of this patent application should be determined by the appended claims, and the specification and drawings can be used to interpret the content of the claims.
Claims
1. A light emitting device, characterized by, The application relates to a light-emitting device, comprising: a driving substrate, a light-emitting element, a first reflective layer, an encapsulation layer, a substrate layer, a transparent protruding part and a second reflective layer; the driving substrate has a working surface, and the light-emitting element and the first reflective layer are arranged on the working surface; the encapsulation layer is arranged on the driving substrate, and the encapsulation layer covers the light-emitting element and the first reflective layer; the substrate layer is arranged on the surface of the encapsulation layer away from the driving substrate; the transparent protruding part is arranged on the surface of the substrate layer away from the driving substrate; the transparent protruding part gradually narrows in the direction away from the substrate layer; and the second reflective layer is arranged on the surface of the transparent protruding part away from the substrate layer.
2. The light emitting device of claim 1, wherein The transparent protruding part is in a matrix arrangement on the surface of the substrate layer away from the driving substrate.
3. The light emitting device of claim 2, wherein, The transparent protruding part covers the entire surface of the substrate layer away from the driving substrate.
4. The light emitting device of claim 1, wherein, The total area of the orthographic projection of the second reflective layer on the working surface accounts for 20%-50% of the total area of the orthographic projection of the transparent protruding part on the working surface; and / or The height of the transparent protruding part is 0.1mm-2mm.
5. The light emitting device of claim 1, wherein, The first reflective layer is arranged outside the area where the light-emitting element is located, and the first reflective layer covers the part of the working surface not covered by the light-emitting element.
6. The light-emitting device according to any one of claims 1 to 5, wherein The material of the first reflective layer comprises a reflective substrate, and the reflective substrate comprises at least one of epoxy resin, silicone, polyurethane and acrylic resin.
7. The light emitting device of claim 6, wherein the light emitting device is a light emitting diode. The material of the first reflective layer further comprises reflective fillers dispersed in the reflective substrate; the reflective fillers comprise at least one of aerogel, glass microbeads, barium sulfate and titanium dioxide.
8. The light-emitting device according to any one of claims 1 to 5, wherein The reflectivity of the first reflective layer is 80%-98%; and / or The thickness of the first reflective layer is 10um-100um.
9. The light-emitting device according to any one of claims 1 to 5, wherein The reflectivity of the second reflective layer is 30%-70%; and / or The light transmittance of the second reflective layer is 30%-70%; and / or The thickness of the second reflective layer is 1um-10um.
10. A display device, characterized by comprising: The application further relates to a light-emitting device comprising the light-emitting device according to any one of claims 1-9.