Light emitting device

Abstract

A supporting layer of the light-emitting device comprises a first supporting part and a second supporting part, a polyhedral supporting structure with a closed space is defined by the second supporting part and the first supporting part, an opening is formed in the supporting layer, a light-emitting panel is arranged on the face, away from the closed space, of the second supporting part, and one end of a flexible circuit board is connected with the light-emitting panel. And the other end passes through the opening and is connected with the main circuit board in the closed space. According to the light-emitting device, the multiple light-emitting modules are installed on the same polyhedral supporting structure, the integration degree of the light-emitting device is high, most of the flexible circuit boards are located in the closed space, the number of the flexible circuit boards exposed out of the outer surface of the polyhedral supporting structure is small, protection can be formed on the flexible circuit boards, and the weather resistance and attractiveness of the light-emitting device are high.

Description

Technical Field

[0001] The utility model relates to the field of display technology, in particular to a light emitting device. Background Art

[0002] Compared with LED light-emitting modules, large-area OLED light-emitting modules are ultra-thin and lightweight with excellent brightness uniformity. They can achieve complex, fine and highly recognizable lighting effects, greatly improving the aesthetics of automotive design and driving safety.

[0003] Most OLED light-emitting devices generally have a two-dimensional planar design. Assembling multiple two-dimensional planar OLED light-emitting devices together can achieve a three-dimensional light-emitting effect, but the integration is poor, and the flexible circuit boards of each OLED light-emitting device are difficult to shield, and the weather resistance and aesthetics are poor.

[0004] It should be noted that the information of the utility model in the above background technology section is only used to enhance the understanding of the background of the utility model, and therefore may include information that does not constitute the prior art known to ordinary technicians in the field. Utility Model Content

[0005] The purpose of the utility model is to provide a light-emitting device to overcome the problems that the way of assembling multiple OLED light-emitting modules together has poor integration, and the flexible circuit boards of each OLED light-emitting module are difficult to cover and have poor aesthetics.

[0006] According to one aspect of the utility model, a light-emitting device is provided, which includes a supporting layer and a light-emitting module, the supporting layer includes a first supporting part and a second supporting part, the second supporting part includes a plurality of sub-supporting parts, the plurality of sub-supporting parts are respectively connected to the edges of the first supporting part, the plurality of sub-supporting parts and the first supporting part form a polyhedron supporting structure with a closed space, and the supporting layer is provided with an opening; the light-emitting module includes a light-emitting panel, a flexible circuit board and a main circuit board, the light-emitting panel is arranged on a side of the second supporting part away from the closed space, the main circuit board is arranged on a side of the first supporting part close to the closed space, one end of the flexible circuit board is connected to the light-emitting panel, and the other end passes through the opening and is connected to the main circuit board.

[0007] In one embodiment of the present invention, the opening is provided at least in part of the sub-support portion or at the connection between at least in part of the sub-support portion and the first support portion.

[0008] In one embodiment of the present invention, a bending area is provided at the connection between the first support portion and the plurality of sub-support portions, the opening is located in the bending area, and the bending area, the opening, the first support portion and the sub-support portion all overlap.

[0009] In an embodiment of the present invention, along the width direction of the opening, the center line of the opening and the center line of the bending zone coincide with each other.

[0010] In one embodiment of the present invention, the distance between the edge of the opening and the edge of the bending zone is half of the width of the opening.

[0011] In one embodiment of the present invention, the light emitting device further comprises a sealant, and along the width direction of the opening, the sealant covers from the connection between the first supporting portion and the plurality of sub-supporting portions to at least the edge of the opening.

[0012] In an embodiment of the present invention, along the width direction of the opening, the sealant extends from the edge of the opening to both sides of the opening until covering the area of ​​the bending zone except the opening.

[0013] In one embodiment of the present invention, the sealant covers the opening and the bending area located at the periphery of the opening.

[0014] In an embodiment of the present invention, when there is a gap between the edge of the bending area and the light-emitting panel, the sealant covers the gap and extends to the edge of the light-emitting panel.

[0015] In one embodiment of the present invention, the light emitting panel has a peripheral area, and the sealant extends to a side of the peripheral area away from the supporting layer.

[0016] In one embodiment of the present invention, the light emitting device further comprises a decorative piece, which is arranged on a side of the sealant away from the supporting layer, and the decorative piece completely covers the opening.

[0017] In one embodiment of the present invention, the polyhedral support structure satisfies the Euler formula:

[0018] V-E+F=2;

[0019] Wherein, V represents the number of vertices of the polyhedron support structure, E represents the number of edges of the polyhedron support structure, and F represents the number of faces of the polyhedron support structure.

[0020] In one embodiment of the present invention, the first support portion and the sub-support portion are in the shape of regular triangles of the same size, and the plurality of sub-support portions and the first support portion form a regular tetrahedron support structure with a closed space.

[0021] In an embodiment of the present invention, the first support portion and the sub-support portion are in the shape of squares of the same size, and the plurality of sub-support portions and the first support portion form a cubic support structure with a closed space.

[0022] In one embodiment of the utility model, an opening is provided at the connection between each sub-support portion and the first support portion, the light-emitting panel includes a plurality of first light-emitting panels, the flexible circuit board includes a plurality of first flexible circuit boards, the plurality of first light-emitting panels are respectively arranged on a side of the sub-support portion away from the enclosed space, one end of the first flexible circuit board is connected to the first light-emitting panel, and the other end passes through the opening and is connected to the main circuit board.

[0023] In one embodiment of the utility model, the light-emitting panel includes a plurality of first light-emitting panels and a second light-emitting panel, the second light-emitting panel is a flexible panel, the flexible circuit board includes a plurality of first flexible circuit boards and at least one second flexible circuit board, the plurality of sub-support parts include a first sub-support part and a second sub-support part, the second sub-support part is arranged on the top surface and at least one side surface of the cube support structure, the first sub-support part is arranged on the remaining side surfaces of the cube support structure, the first light-emitting panel is arranged on the first sub-support part, the second light-emitting panel is arranged on the second sub-support part, the first sub-support part and the second sub-support part are both provided with openings at the connection with the first support part, one end of the first flexible circuit board and the second flexible circuit board are connected to the main circuit board through the opening, and the other end is respectively connected to the first light-emitting panel and the second light-emitting panel, the top surface of the cube support structure is arranged opposite to the first support part and parallel to each other, and the side surfaces of the cube support structure are perpendicular to the first support part and connected to each other.

[0024] In one embodiment of the present invention, the second sub-support portion is disposed on the top surface and at least two opposite side surfaces of the cube support structure.

[0025] In an embodiment of the present invention, each sub-support portion protrudes in a direction away from the enclosed space, and a plurality of first light-emitting panels are respectively attached to a surface of the sub-support portion away from the enclosed space.

[0026] In one embodiment of the utility model, the light emitting device further comprises protective glue and waterproof glue, the protective glue is arranged on a side of the flexible circuit board away from the supporting layer, and the waterproof glue is arranged on a side of the protective glue away from the supporting layer.

[0027] In one embodiment of the present invention, the light-emitting panel includes a packaging layer and a light-emitting substrate. The packaging layer is connected to a side of the second support portion away from the closed space through a first adhesive layer, and the light-emitting substrate is arranged on a side of the packaging layer away from the second support portion.

[0028] In one embodiment of the utility model, the light-emitting panel also includes a second adhesive layer, a filter film, a third adhesive layer and a protective film, the second adhesive layer is arranged on a side of the light-emitting substrate away from the second supporting portion, the filter film is arranged on a side of the second adhesive layer away from the second supporting portion, the third adhesive layer is arranged on a side of the filter film away from the second supporting portion, and the protective film is arranged on a side of the third adhesive layer away from the second supporting portion.

[0029] The support layer of the light-emitting device of the utility model includes a first support part and a second support part, the second support part and the first support part form a polyhedron support structure with a closed space, an opening is provided on the support layer, a light-emitting panel is provided on a side of the second support part away from the closed space, one end of the flexible circuit board is connected to the light-emitting panel, and the other end passes through the opening and is connected to the main circuit board in the closed space. Multiple light-emitting modules are installed on the same polyhedron support structure, the light-emitting device has a high degree of integration, most of the flexible circuit board is located in the closed space, and relatively little of it leaks out of the outer surface of the polyhedron support structure, which can form protection for the flexible circuit board, making the light-emitting device more weather-resistant and aesthetically pleasing.

[0030] It should be understood that the above general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0031] The drawings herein are incorporated into the specification and constitute a part of the specification, showing embodiments consistent with the present utility model, and together with the specification, are used to explain the principles of the present utility model. Obviously, the drawings described below are only some embodiments of the present utility model, and for ordinary technicians in this field, other drawings can be obtained based on these drawings without creative work.

[0032] Figure 1 This is a schematic structural diagram of a regular tetrahedron support structure formed by a first support portion and a sub-support portion involved in an embodiment of the utility model.

[0033] Figure 2 It is a plan view schematically showing the unfolded state of the regular tetrahedron support structure involved in an embodiment of the present utility model.

[0034] Figure 3 It is a structural schematic diagram of a cube support structure formed by a first support portion and a sub-support portion involved in an embodiment of the utility model.

[0035] Figure 4 It is a plan view of the cube support structure in the unfolded state according to the embodiment of the utility model.

[0036] Figure 5 It is a cross-sectional schematic diagram of a light-emitting panel being arranged on a side of the second supporting portion away from the enclosed space when the polyhedral supporting structure is a regular tetrahedral supporting structure.

[0037] Figure 6 It is a cross-sectional schematic diagram of a second supporting portion according to an embodiment of the present invention being provided with a light-emitting panel on a side away from the enclosed space when the polyhedral supporting structure is a cubic supporting structure.

[0038] Figure 7It is a schematic diagram of display panel stacking involved in an embodiment of the utility model.

[0039] Figure 8 It is a cross-sectional schematic diagram of a light-emitting substrate of a bottom emission structure involved in an embodiment of the utility model.

[0040] Fig. 9 It is a cross-sectional schematic diagram of a light-emitting substrate of a top emission structure involved in an embodiment of the utility model.

[0041] Fig.10 It is a schematic diagram of the connection between the light-emitting panel, the flexible circuit board and the main circuit board involved in the embodiment of the utility model when the polyhedron supporting structure is a regular tetrahedron supporting structure.

[0042] Fig.11 It is a schematic diagram of the connection between the light-emitting panel, the flexible circuit board and the main circuit board involved in the embodiment of the utility model when the polyhedron supporting structure is a cube supporting structure.

[0043] Fig.12 It is a plan view of the support layer involved in the embodiment of the utility model when the sealant covers from the connection between the first support part and the plurality of sub-support parts to the edge of the opening along the width direction of the opening.

[0044] Fig.13 It is a plan view of the support layer involved in the embodiment of the utility model when the sealant extends from the edge of the opening to both sides of the opening until it covers the area of ​​the bending zone except the opening.

[0045] Fig.14 A schematic plan view of the support layer involved in an embodiment of the present invention when there is a gap between the edge of the bending area covered by the sealant and the light-emitting panel and the gap extends to the edge of the light-emitting panel.

[0046] Fig.15 It is a plan view of the support layer involved in the embodiment of the utility model when the sealant extends to the side of the peripheral area away from the support layer.

[0047] Fig.16 A schematic plan view of the support layer involved in an embodiment of the present utility model when the sealant covers the opening and the bending area is located in the area outside the opening.

[0048] Fig.17 It is a plan view of the support layer involved in the embodiment of the utility model when the second sub-support part is arranged on the top surface and one side surface of the cube support structure.

[0049] Fig.18 It is a cross-sectional schematic diagram of the light-emitting device involved in the embodiment of the utility model when the second sub-support portion is arranged on the top surface and one side surface of the cube support structure and the second light-emitting panel is arranged on the second sub-support portion.

[0050] Fig.19 It is a plan view of the support layer involved in the embodiment of the utility model when the second sub-support part is arranged on the top surface and two side surfaces of the cube support structure.

[0051] Fig. 20 It is a cross-sectional schematic diagram of the light-emitting device involved in the embodiment of the utility model when the second sub-support part is arranged on the top surface and two side surfaces of the cube support structure and the second light-emitting panel is arranged on the second sub-support part.

[0052] Fig.21 It is a cross-sectional schematic diagram of the regular tetrahedron support structure involved in the embodiment of the utility model when the decorative component is arranged on the side of the sealant away from the support layer.

[0053] Fig. 22 It is a cross-sectional schematic diagram of the cube support structure involved in the embodiment of the utility model when the decorative component is arranged on the side of the sealant away from the support layer.

[0054] Fig.23 It is a schematic diagram of the three-dimensional structure of the regular tetrahedron support structure involved in the embodiment of the utility model when the decorative piece is arranged on the side of the sealant away from the support layer.

[0055] In the figure: 1-support layer, 10-support structure, 11-first support part, 12-second support part, 121-sub-support part, 1211-first sub-support part, 1212-second sub-support part, 13-bending area, 14-opening, 2-light-emitting module, 210-light-emitting panel, 2101-first light-emitting panel, 2102-second light-emitting panel, 2103-display area, 2104-peripheral area, 220-flexible circuit board, 2201-first flexible circuit board, 2202-second flexible circuit board, 230-main circuit board, 240-element Device, 21-first bonding layer, 22-packaging layer, 23-light-emitting substrate, 231-substrate substrate, 232-driving circuit layer, 2321-gate layer, 2322-gate insulating layer, 2323-active layer, 2324-interlayer dielectric layer, 2325-source-drain metal layer, 2326-planarization layer, 233-light-emitting layer, 2331-pixel electrode, 2332-light-emitting material layer, 2333-common electrode, 24-second bonding layer, 25-filter film, 26-third bonding layer, 27-protective film, 3-sealant, 4-decorative part. DETAILED DESCRIPTION

[0056] Example embodiments will now be described more fully with reference to the accompanying drawings. However, the example embodiments can be implemented in a variety of forms and should not be construed as limited to the embodiments set forth herein; rather, these embodiments are provided so that the present invention will be comprehensive and complete and fully convey the concepts of the example embodiments to those skilled in the art. The same reference numerals in the figures represent the same or similar structures, and thus their detailed description will be omitted. In addition, the drawings are only schematic illustrations of the present invention and are not necessarily drawn to scale.

[0057] Although relative terms such as "upper" and "lower" are used in this specification to describe the relative relationship of one component of the illustration to another component, these terms are used in this specification only for convenience, such as according to the orientation of the examples described in the drawings. It is understood that if the device of the illustration is turned upside down, the component described as "upper" will become the component "lower". When a structure is "on" other structures, it may mean that the structure is formed integrally on the other structure, or that the structure is "directly" disposed on the other structure, or that the structure is "indirectly" disposed on the other structure through another structure.

[0058] The terms "a", "an", "the", "said" and "at least one" are used to indicate the presence of one or more elements / components / etc.; the terms "including" and "having" are used to express an open-ended inclusive meaning and mean that additional elements / components / etc. may exist in addition to the listed elements / components / etc.; the terms "first", "second" and "third" etc. are used merely as labels and are not intended to limit the quantity of their objects.

[0059] OLED taillight technology is a major innovation in automotive lighting, and has achieved significant technological progress and market applications in recent years. OLED taillights are favored for their ultra-thin, lightweight and excellent brightness uniformity. Compared with traditional LED light-emitting modules, OLED light-emitting modules with large-area light emission can achieve complex, fine and highly recognizable lighting effects, which greatly enhances the aesthetics of automotive design and driving safety. As shown in the figure, in the current field of automotive lighting, mainstream OLED taillights generally use two-dimensional planar OLED light-emitting devices, which to a certain extent limits the space for OLED taillights to fully exert their unique advantages. Assembling multiple two-dimensional planar OLED light-emitting devices together can achieve a three-dimensional light-emitting effect, but the integration is poor, and the flexible circuit boards of each OLED light-emitting device are difficult to block, and the weather resistance and aesthetics are poor.

[0060] Based on this, the present invention provides a display panel. Figures 1 to 23As shown, the light-emitting device includes a support layer 1 and a light-emitting module 2, the support layer 1 includes a first support portion 11 and a second support portion 12, the second support portion 12 includes a plurality of sub-support portions 121, the plurality of sub-support portions 121 are respectively connected to the edges of the first support portion 11, the plurality of sub-support portions 121 and the first support portion 11 form a polyhedron support structure 10 with a closed space, and an opening 14 is provided on the support layer 1; the light-emitting module 2 includes a light-emitting panel 210, a flexible circuit board 220 and a main circuit board 230, the light-emitting panel 210 is arranged on a side of the second support portion 12 away from the closed space, the main circuit board 230 is arranged on a side of the first support portion 11 close to the closed space, one end of the flexible circuit board 220 is connected to the light-emitting panel 210, and the other end passes through the opening 14 to be connected to the main circuit board 230.

[0061] The second support part 12 and the first support part 11 form a polyhedron support structure 10 with a closed space, an opening 14 is provided on the support layer 1, a light-emitting panel 210 is provided on a side of the second support part 12 away from the closed space, one end of the flexible circuit board 220 is connected to the light-emitting panel 210, and the other end passes through the opening 14 and is connected to the main circuit board 230 in the closed space. Multiple light-emitting modules 2 are installed on the same polyhedron support structure 10, the light-emitting device has a high degree of integration, most of the flexible circuit board 220 is located in the closed space, and relatively little of it leaks out of the outer surface of the polyhedron support structure 10, and the light-emitting device has strong weather resistance and aesthetics.

[0062] The light emitting device according to the embodiment of the present invention will be described in detail below with reference to specific embodiments.

[0063] like Figures 1 to 6 As shown, the light-emitting device may include a first support portion 11 and a second support portion 12, the second support portion 12 includes a plurality of sub-support portions 121, the plurality of sub-support portions 121 are respectively connected to the edges of the first support portion 11, a bending area 13 is provided at the connection between the first support portion 11 and the plurality of sub-support portions 121, and the bending area 13 overlaps the first support portion 11 and the sub-support portions 121. The plurality of sub-support portions 121 and the first support portion 11 are bent in the bending area 13 to form a polyhedral support structure 10 with a closed space. The light-emitting device also includes a light-emitting module 2, the light-emitting module 2 may include a light-emitting panel 210, and the light-emitting panel 210 is provided on a side of the second support portion 12 away from the closed space.

[0064] The light-emitting device is closely attached to the overall structure of the vehicle through the first support portion 11. The strong connection and stability between the two are ensured by using a double-sided adhesive with high strength performance. The bonding process is designed to provide a durable and reliable interface adhesion and adapt to the dynamic stress changes in various driving environments.

[0065] The second support portion 12 not only bears the physical support function of the light-emitting panel 210, but also performs the actual bonding and assembly work of the light-emitting panel 210 through the first adhesive layer 21 to ensure efficient energy transfer and mechanical coupling between the light-emitting panel 210 and the second support portion 12. It should be noted that the first adhesive layer 21 can be made of double-sided adhesive or thermal conductive adhesive. The bending area 13 needs to provide an effective mechanical buffer and protection mechanism to ensure that the structural integrity and long-term reliability of the light-emitting device are maintained under frequent or extreme bending operations.

[0066] Therefore, the selection of the material of the support layer 1 is of vital importance. The materials used in the support layer 1 include but are not limited to a series of high-performance alloys, such as: stainless steel with excellent corrosion resistance, lightweight and high-strength aluminum alloy, and titanium alloy with excellent strength-to-weight ratio. In addition, carbon fiber composite materials can also be integrated into the alloy to utilize their excellent stiffness and fatigue resistance to optimize the overall structural performance of the support layer 1.

[0067] The material of the supporting layer 1 has high thermal conductivity, which can effectively transfer the heat generated by the main circuit board 230 during operation to the supporting layer 1 and further diffuse it outward, thereby achieving efficient heat dissipation, effectively preventing the occurrence of overheating, ensuring the working stability and reliability of the entire light-emitting device, and extending the life of the light-emitting device.

[0068] like Figures 5 to 7 As shown, the light-emitting panel 210 includes an encapsulation layer 22, a light-emitting substrate 23, a second adhesive layer 24, a filter film 25, a third adhesive layer 26 and a protective film 27. The encapsulation layer 22 is connected to a side of the second support portion 12 away from the enclosed space through the first adhesive layer 21. The light-emitting substrate 23 is arranged on a side of the encapsulation layer 22 away from the second support portion 12. The second adhesive layer 24 is arranged on a side of the light-emitting substrate 23 away from the second support portion 12. The filter film 25 is arranged on a side of the second adhesive layer 24 away from the second support portion 12. The third adhesive layer 26 is arranged on a side of the filter film 25 away from the second support portion 12. The protective film 27 is arranged on a side of the third adhesive layer 26 away from the second support portion 12.

[0069] like Figure 8 and Fig. 9As shown, the light-emitting substrate 23 may include a base substrate 231 and a driving circuit layer 232, the driving circuit layer 232 includes a gate layer 2321, a gate insulating layer 2322, an active layer 2323, an interlayer dielectric layer 2324, a source-drain metal layer 2325 and a planarization layer 2326, the light-emitting layer 233 includes a pixel electrode 2331, a light-emitting material layer 2332 and a common electrode 2333, the gate insulating layer 2322 is arranged on a side of the gate layer 2321 away from the base substrate 231, the active layer 2323 is arranged on a side of the gate insulating layer 2322 away from the base substrate 231, the interlayer dielectric layer 2324 is arranged on a side of the active layer 2323 away from the base substrate 231, the source-drain metal layer 2325 is arranged on a layer of the interlayer dielectric layer 2324 away from the base substrate 231, and the planarization layer 2326 is arranged on a side of the source-drain metal layer 2325 away from the base substrate 231.

[0070] The light-emitting substrate 23 may also include a light-emitting layer 233, which includes a pixel electrode 2331, a light-emitting material layer 2332 and a common electrode 2333. The pixel electrode 2331 is arranged on the side of the planarization layer 2326 away from the base substrate 231, the pixel electrode 2331 is connected to the source-drain metal layer 2325 through a via, the light-emitting material layer 2332 is arranged on the side of the pixel electrode 2331 away from the base substrate 231, and the common electrode 2333 is arranged on the side of the light-emitting material layer 2332 away from the base substrate 231. It should be noted that the light-emitting layer 233 is made of an organic light-emitting diode (OLED), and an organic material is used as the light-emitting material layer 2332. When powered on, these organic materials form excitons and release energy in the form of light through the injection and transmission of carriers (electrons and holes) and recombination in the light-emitting material layer 2332.

[0071] The light emitting substrate 23 may be formed of Figure 8 The bottom emission structure shown in the figure, in this case, the pixel electrode 2331 can be a transparent electrode, the common electrode 2333 can be a metal electrode, and the common electrode 2333 can reflect the light generated by the light-emitting material layer 2332 to the pixel electrode 2331, and the light passes through the pixel electrode 2331 and is emitted from the driving circuit layer 232. The light-emitting panel 210 can be used as shown in the figure. Fig. 9 In the top emission structure shown, the pixel electrode 2331 can be a metal electrode, the common electrode 2333 can be a transparent electrode, and the pixel electrode 2331 can reflect the light generated by the light-emitting material layer 2332 to the common electrode 2333, and emit through the common electrode 2333. Usually, the light-emitting panel 210 can adopt a bottom emission structure, because the light-emitting panel 210 has a relatively low requirement for pixel density, so there is sufficient space to place the thin film transistor of the driving circuit layer 232, and even if part of the light is blocked, the requirement can be met.

[0072] The filter film 25 can accurately filter out light of a specific wavelength, so that the light-emitting device emits red, yellow, orange and other colors of light that meet regulatory requirements and have high recognition, so that the light-emitting device can ensure driving safety when used as a taillight. For taillights with different functions such as brake lights, turn signals and reverse lights, the filter film 25 can ensure that each light signal is clear and discernible, reducing the risk of traffic accidents caused by light confusion. The filter film 25 can also adjust the brightness of the light-emitting device by absorbing or reflecting part of the unnecessary spectrum to avoid the problem of too bright or too dark. The filter film 25 helps to improve the uniformity of the light source and reduce hot spots and dark areas. The filter film 25 also has certain weather resistance and impact resistance. When the light-emitting device is used as a taillight, it can prevent the taillight from aging and discoloration caused by ultraviolet radiation, as well as scratches, wear and tear that may occur during use. Using a filter film 25 with a special color or pattern can also increase the visual appeal of the taillight.

[0073] like Fig.10 and Fig.11 As shown, the display module also includes a flexible circuit board 220 and a main circuit board 230. The main circuit board 230 is arranged on a side of the first support portion 11 close to the closed space. The bending area 13 is provided with an opening 14, and the flexible circuit board 220 passes through the opening 14. One end of the flexible circuit board 220 is connected to the light-emitting panel 210, and the other end is connected to the main circuit board 230. The opening 14 is for a flexible printed circuit board (Flexible Printed Circuit, FPC) to pass through, so that the flexible circuit board 220 and the main circuit board 230 (Printed Circuit Board, PCB) are electrically connected, and the electrical connection between the flexible printed circuit board and the main circuit board 230 is realized more conveniently and efficiently. The main circuit board 230 (PCB), most of the flexible printed circuit boards, and the connection between the main circuit board 230 (PCB) and the flexible printed circuit board are all located inside the closed space, which can protect the circuit structure of the light-emitting device and ensure that the electrical signal can be transmitted stably and completely, thereby constructing a stable and efficient electrical connection system.

[0074] like Figures 12 to 16As shown, the size of the opening 14 needs to be strictly controlled to be smaller than the corresponding bending zone 13, so the opening 14 is usually arranged in the bending zone 13, which can not only meet the functional requirements, but also maximize the overall rigidity and structural stability of the support layer 1, and prevent the local strength from being weakened due to the excessive size of the opening 14. In this embodiment, the bending zone 13, the opening 14 overlaps with the first support portion 11 and the sub-support portion 121. Along the width direction of the opening 14, the center line of the opening 14 coincides with the center line of the bending zone 13, and the center line of the opening 14 and the center line of the bending zone 13 can coincide with the boundary line between the first support portion 11 and the plurality of sub-support portions 121. In other embodiments, the opening 14 can also be arranged on the sub-support portion 121, that is, the opening 14 only overlaps with the sub-support portion 121, and the opening 14 is arranged on a plane to reduce its processing difficulty.

[0075] The flexible circuit board 220 and the light-emitting panel 210 are bound together by anisotropic conductive film (ACF), which ensures that the flexible circuit board 220 and the light-emitting panel 210 can achieve accurate and efficient electrical signal transmission at the designated contact points while maintaining good mechanical stability. Anisotropic conductive adhesive is a special thin-film conductive adhesive with anisotropic conductive properties, that is, it conducts electricity only in the vertical direction and not in the planar direction. When appropriate pressure is applied, the conductive particles in the film will just contact and conduct the two electrodes to be connected, while in the non-conductive direction, the particles remain separated and will not cause a short circuit.

[0076] In order to further enhance the protection performance and sealing of the flexible circuit board 220, after the flexible circuit board 220 is bound to the light-emitting panel 210, the outer surface can be coated. First, a layer of protective glue is coated on the side of the flexible circuit board 220 away from the supporting layer 1, which can provide necessary structural reinforcement for the flexible circuit board 220 and help prevent short circuits or potential damage caused by environmental factors. The protective glue can be made of ultraviolet curing adhesive (Ultraviolet Curing Adhesive), which is a polymer material that can be quickly cured by ultraviolet radiation. Secondly, in response to waterproof requirements, waterproof glue is set on the side of the protective glue away from the supporting layer 1 to form an effective waterproof barrier to ensure that moisture cannot penetrate into the internal circuit, thereby greatly improving the working reliability and service life of the light-emitting device in humid or extreme environments.

[0077] The protective glue can be a modified cyanoacrylate (MCL) type UV curing adhesive. This type of glue combines the characteristics of cyanoacrylate and UV curing. After being applied under normal conditions, it first relies on the rapid chemical reaction between the cyanoacrylate component and the contact surface to achieve preliminary positioning and bonding, and then achieves deep curing and final high-strength bonding through ultraviolet irradiation. It has both the rapid positioning ability of cyanoacrylate glue and the deep curing and durability advantages of UV curing glue.

[0078] The waterproof glue has excellent sealing properties and can form an effective sealing barrier on the flexible circuit board 220 to prevent moisture from penetrating into the flexible circuit board 220 and the light-emitting panel 210. The waterproof glue has strong electrical insulation properties, which not only prevents moisture from entering, but also provides good electrical insulation effects to ensure safe isolation between components 240 and circuits. The waterproof glue has low viscosity and can easily fill the tiny gaps between the components 240 and circuits of the flexible circuit board 220. After curing, it will not cause stress or deformation to the components 240. The waterproof glue has strong weather resistance: it has UV resistance, high temperature resistance, low temperature resistance and aging resistance, and can play a protective role in a long-term and stable manner under various climatic conditions. In summary, the waterproof glue can protect the flexible circuit board 220 from the influence of water, moisture and other environmental pollutants, ensuring that it can maintain normal working conditions even in harsh environments.

[0079] like Fig.10 and Fig.11 As shown, since the support layer 1 may have a certain rebound tendency after being bent, the structure of the polyhedral support structure 10 formed by folding is sometimes not particularly stable. In order to ensure the structural stability of the polyhedral support structure 10, a sealant 3 needs to be provided at the connection between the sub-support portion 121 and the first support portion 11. Fig.12 As shown, along the width direction of the opening 14, the sealant 3 covers at least the edge of the opening 14 from the connection between the first support portion 11 and the plurality of sub-support portions 121. If the sealant 3 has sufficient strength, the structural stability of the polyhedral support structure 10 can be ensured. Fig.12 The x direction in .

[0080] like Fig.13As shown, in the width direction of the opening 14, the sealant 3 extends from the edge of the opening 14 to both sides of the opening 14 until it covers the area of ​​the bending zone 13 except the opening 14, thereby avoiding any physical interference or influence between the sealant 3 and the flexible circuit board 220. As the coating area of ​​the sealant 3 increases, the stability of the polyhedron support structure 10 can be further enhanced, and the flexible circuit board 220 can be covered, thereby enhancing the waterproof and dustproof performance of the light-emitting device under complex environmental conditions. At the same time, the main circuit board 230 and the flexible circuit board 220 can dissipate heat through the opening 14. Fig.14 As shown, there is usually a gap between the edge of the bending area 13 and the light-emitting panel 210. The sealant 3 covers the gap and extends to the edge of the light-emitting panel 210, which can further increase the coating area of ​​the sealant 3 and further enhance the waterproof and dustproof performance of the light-emitting device under complex environmental conditions.

[0081] like Fig.15 As shown, the light-emitting panel 210 has a light-emitting area and a peripheral area 2104, the peripheral area 2104 is located outside the light-emitting area, and the sealant 3 extends to the side of the peripheral area 2104 away from the support layer 1. The sealant 3 can cover the binding portion between the light-emitting panel 210 and the flexible circuit board 220, further enhancing the waterproof and dustproof performance of the light-emitting device under complex environmental conditions. Fig.16 As shown, the material of the supporting layer 1 usually has good thermal conductivity. Therefore, while avoiding the key conductive area of ​​the flexible circuit board 220, the opening 14 can also be sealed with a sealant 3, that is, the sealant 3 covers the opening 14 and the area of ​​the bending zone 13 located outside the opening 14, which can prevent dust and water vapor from entering the enclosed space and optimize the waterproof and dustproof performance of the light-emitting device under complex environmental conditions.

[0082] The polyhedral support structure 10 satisfies the Euler formula: V-E+F=2; wherein V represents the number of vertices of the polyhedral support structure 10, E represents the number of edges of the polyhedral support structure 10, and F represents the number of faces of the polyhedral support structure 10. The polyhedral support structure 10 may be a tetrahedral support structure 10, which has 4 vertices, 6 edges, and 4 faces. The polyhedral support structure 10 may also be a cubic support structure 10, which has 8 vertices, 12 edges, and 6 faces. The polyhedral support structure 10 may also be an octahedral support structure, which has 6 vertices, 12 edges, and 8 faces. The polyhedral support structure 10 may also be a dodecahedral support structure, which has 20 vertices, 30 edges, and 12 faces.

[0083] See again Figure 1, the first support portion 11 and the sub-support portion 121 are equilateral triangles of the same size, the number of the first support portion 11 can be one, and the number of the sub-support portions 121 can be three, so there are four triangles in total, each equilateral triangle shares edges and vertices with the other two triangles, and the four equilateral triangles are spliced ​​to form a regular tetrahedron support structure 10. The vertices of the four triangles must contain four non-intersecting line segments as the four edges of the regular tetrahedron support structure 10, and are connected together to form a closed space.

[0084] The surface of the regular tetrahedron support structure 10 is smooth and continuous, that is, there is no depression in the first support part 11 and the sub-support part 121, and the sub-support part 121 and the first support part 11 do not cross each other, so as to avoid the problem of weakened connection between the sub-support part 121 and the first support part 11 after the sealant 3 is attached, so that there is a misalignment, collision or interference between the first light-emitting panel 2101 or between the first light-emitting panel 2101 and the second light-emitting panel 2102 under long-term vibration. Since the flexible circuit board 220 and the main circuit board 230 are both arranged in a sealed space, there should be no overlapping parts or gaps between the four regular triangles, that is, the four triangles should be completely seamlessly spliced ​​together to form a complete three-dimensional surface, so as to avoid the sealant 3 from leaking to the connection between the flexible circuit board 220 and the main circuit board 230 when applying.

[0085] It should be noted that the first support portion 11 and the sub-support portion 121 may also be in the shape of four non-equilateral triangles of different sizes, but the sizes of the non-equilateral triangles need to be adapted so that after splicing, an irregular tetrahedral support structure 10 can be formed. The first support portion 11 and the sub-support portion 121 may also be in the shape of rectangles of different sizes so that after splicing, a hexahedral support structure 10 can be formed, wherein the shapes and sizes of the rectangles on the opposite sides of the hexahedral support structure 10 are equal.

[0086] See again Figure 2, a value is the side length of the first support portion 11, b value is the length of the opening 14, wherein b value is less than a value. c value is 1 / 2 of the width of the bending zone 13, the distance between the edge of the opening 14 and the edge of the bending zone 13 is d value, d value is half of the width of the opening 14, because the opening 14 is arranged in the bending zone 13, so c value is greater than or equal to d, in this embodiment, 2d is less than or equal to 1mm, 2c is less than or equal to 5mm. Among them, 2d can be 0.2mm, 0.4mm, 0.6mm, 0.8mm or 1mm, 2c can be 1mm, 2mm, 3mm, 4mm or 5mm. If the shape of the first support portion 11 and the sub-support portion 121 is a non-equilateral triangle, the side lengths of the first support portion 11 are a1, a2, a3 respectively, and the lengths of the corresponding different openings 14 are b1, b2, b3 respectively, b1 is less than a1, b2 is less than a2, and b3 is less than a3 (not shown in the figure).

[0087] See again Figure 3 , the first support part 11 and the sub-support part 121 can be in the shape of squares of the same size, the number of the first support part 11 can be one, and the number of the sub-support parts 121 can be five, so a total of six squares are included, and the six squares form a cubic support structure 10 with a closed space. In the cubic support structure 10, each square has another square of the same size adjacent to it, and these two squares should still be adjacent in the unfolded view, and each cube has another square of the same size opposite to it, and these two squares cannot be adjacent in the unfolded view.

[0088] See again Figure 4 , the cube support structure 10 can have the same a value, b value, c value, and d value as the regular tetrahedron support structure 10, and will not be described in detail here. When the first support portion 11 and the sub-support portion 121 are rectangular in shape, the side lengths of the first support portion 11 are a1, a2, a1, and a2, respectively, and the lengths of the corresponding openings 14 are b1, b2, b1, and b2, respectively, b1 is smaller than a1, and b2 is smaller than a2 (not shown in the figure).

[0089] See again Fig.10 When the support layer 1 forms a regular tetrahedron support structure 10, the light-emitting panel 210 may include four regular triangular first light-emitting panels 2101, and each sub-support portion 121 is provided with a first light-emitting panel 2101 on one side away from the closed space. The flexible circuit board 220 includes four first flexible circuit boards 2201, one end of the four first flexible circuit boards 2201 is connected to the first light-emitting panel 2101, and the other end passes through four openings 14 to connect to the main circuit board 230.

[0090] See again Fig.11The above structure is also applicable to the cube support structure 10. When the support layer 1 forms a regular tetrahedron support structure 10, the light-emitting panel 210 may include six square first light-emitting panels 2101, and the flexible circuit board 220 includes six first flexible circuit boards 2201. One end of the six first flexible circuit boards 2201 is connected to the first light-emitting panel 2101, and the other end passes through the opening 14 to connect to the main circuit board 230. It can be seen that the distance between the binding area of ​​one of the first light-emitting panels 2101 and the main circuit board 230 is relatively far, so the first flexible circuit board 2201 of the first light-emitting panel 2101 is set to be relatively long, so it is considered to shorten the length of the first flexible circuit board 2201 to simplify the circuit structure of the light-emitting device.

[0091] like Fig.17 and Fig.18 As shown, the light-emitting panel 210 includes a plurality of first light-emitting panels 2101 and a second light-emitting panel 2102, the second light-emitting panel 2102 is a flexible panel, the flexible circuit board 220 includes a plurality of first flexible circuit boards 2201 and a second flexible circuit board 2202, the second sub-support portion 1212 is disposed on the top surface and one side surface of the cube support structure 10, the first sub-support portion 1211 is disposed on the remaining side surfaces of the cube support structure 10, the plurality of sub-support portions 121 include a first sub-support portion 1211 and a second sub-support portion 1212, the first light-emitting panel 2101 is disposed on the first sub-support portion 1211, and the second light-emitting panel 2102 is disposed on the second sub-support portion 1212. The top surface of the cube support structure 10 is arranged opposite to the first support portion 11 and is parallel to each other, and the side surfaces of the cube support structure 10 are perpendicular to the first support portion 11 and are connected to each other.

[0092] The first sub-support portion 1211 and the second sub-support portion 1212 are both provided with openings 14 at the connection points with the first support portion 11. One end of the first flexible circuit board 2201 and the second flexible circuit board 2202 pass through the opening 14 to be connected to the main circuit board 230, and the other end is respectively connected to the first light-emitting panel 2101 and the second light-emitting panel 2102. The top surface of the cube support structure 10 is arranged opposite to the first support portion 11 and is parallel to each other, and the side surface of the cube support structure 10 is perpendicular to the first support portion 11 and is connected to each other.

[0093] It can be understood that the second sub-support portion 1212 is composed of a first sub-support portion 1211 on the top surface connected to a first sub-support portion 1211 on the side surface, and the second light-emitting panel 2102 is bent at the common edge of the first sub-support portion 1211 on the top surface of the cube support structure 10 and the first sub-support portion 1211 on one side surface, and is bound to the main circuit board 230 through the opening 14 at the connection between the first sub-support portion 1211 on the side surface and the first support portion 11.

[0094] The cube support structure 10 omits the opening 14 at the connection between the first sub-support portion 1211 on the top surface and the first sub-support portion 1211 on the side surface, and the distance between the binding area of ​​the second light-emitting panel 2102 and the main circuit board 230 is greatly shortened compared to the distance between the binding area of ​​the first light-emitting panel 2101 on the top surface and the main circuit board 230, and one flexible circuit board 220 is omitted, thereby reducing the number of flexible circuit boards 220 and greatly simplifying the circuit structure of the light-emitting device.

[0095] like Fig.19 and Fig. 20 As shown, in order to further reduce the number of flexible circuit boards 220, the second sub-support part 1212 is provided on the top surface and two opposite side surfaces of the cube support structure 10. The second sub-support part 1212 is composed of the first sub-support part 1211 on the top surface and the first sub-support parts 1211 on the two opposite side surfaces connected to each other. The second light-emitting panel 2102 is bent at the common edge of the first sub-support part 1211 on the top surface of the cube support structure 10 and the first sub-support parts 1211 on the two opposite side surfaces, and is bound to the main circuit board 230 through the opening 14 at the connection between the first sub-support part 1211 on one side and the first support part 11. The cube support structure 10 omits the opening 14 at the connection between the first sub-support part 1211 on the top surface and the first sub-support parts 1211 on the two opposite side surfaces, and omits two flexible circuit boards 220, further reducing the number of flexible circuit boards 220 and better simplifying the circuit structure of the light-emitting device.

[0096] When the first light-emitting panel 2101 does not need to be bent, it can be a rigid OLED light-emitting panel 210, and because the second light-emitting panel 2102 needs to be folded, it can be a flexible OLED light-emitting panel 210. The rigid OLED light-emitting panel 210 usually uses a rigid material such as glass as a substrate and does not have bending or folding properties. The flexible OLED light-emitting panel 210 uses a flexible material such as polyimide as a substrate. Compared with the rigid OLED light-emitting panel 210, it has the ability to bend, fold, and even curl.

[0097] In order to further improve the three-dimensional effect of the light-emitting device, each sub-support part 121 can be configured to protrude in a direction away from the enclosed space, and a plurality of first light-emitting panels 2101 are respectively attached to a side of the sub-support part 121 away from the enclosed space. In this case, the first light-emitting panel 2101 will also bend, and in this case, the first light-emitting panel 2101 needs to be configured as a flexible OLED light-emitting panel 210.

[0098] like Figure 21 to Figure 23As shown, the light-emitting device also includes a decorative piece 4, which is arranged on the side of the sealant 3 away from the support layer 1. The decorative piece 4 can further fix the angle between the sub-support portion 121 and the first support portion 11, and the angle between adjacent sub-support portions 121, that is, the bending angle of the support layer 1 is further fixed, thereby enhancing the structural stability of the polyhedron support structure 10, and can also enhance the packaging effect, prevent environmental factors from potentially damaging sensitive components inside the enclosed space, and at the same time, the decorative piece 4 has a certain decorative effect, which can enhance the aesthetic characteristics of the light-emitting device. In this embodiment, the decorative piece 4 completely covers the sealant 3, which can prevent the sealant 3 from being exposed, avoid affecting the aesthetic characteristics of the light-emitting device, and further enhance the strength of the light-emitting device. It should be noted that the decorative piece 4 can decorate the prism.

[0099] It is worth noting that the areas covered by the sealant 3 are not the same. The decorative member 4 can increase the shielding range while shielding the area covered by the sealant 3, thereby enhancing its protective effect. For example, when the sealant 3 covers at least the edge of the opening 14 from the connection between the first support portion 11 and the plurality of sub-support portions 121, the decorative member 4 can also completely shield the opening 14 and shield the area between the edge of the opening 14 and the edge of the bending area 13, thereby preventing the circuit part in the closed space from being exposed, and playing a certain role in waterproofing and dustproofing.

[0100] Regardless of whether the sealant 3 covers the opening 14, when the coverage of the sealant 3 extends from the edge of the opening 14 to both sides of the opening 14 along the width direction of the opening 14, the waterproof and dustproof performance of the light-emitting device has been guaranteed to a certain extent, and the decorative component 4 can be extended to the edge of the light-emitting panel 210 to block the inevitable exposed part of the flexible circuit board 220, so that the inevitable exposed part of the flexible circuit board 220 can be just hidden under the decorative component 4, which not only avoids the visual interference caused by the exposure of the flexible circuit board 220, but also greatly improves the overall appearance of the light-emitting device.

[0101] It should be noted that the same or equal mentioned above refers to the same or equal size within a certain tolerance range.

[0102] It should be noted that the above-mentioned light-emitting device can be used for automobile taillights, and of course can also be used as lighting for other purposes, which is not specifically limited here.

[0103] It should be noted that the above embodiments are interoperable and can be combined with each other to form other solutions. The solutions of the utility model are not limited to the solutions described in the above embodiments. After considering the specification and practicing the disclosure of the utility model here, those skilled in the art will easily think of other implementation schemes of the utility model. This application is intended to cover any modification, use or adaptive change of the utility model, which follows the general principles of the utility model and includes common knowledge or customary technical means in the technical field that are not disclosed in the utility model. The specification and embodiments are regarded as exemplary only, and the true scope and spirit of the utility model are indicated by the attached claims.

Claims

1. A light emitting device, characterized in that: include: A support layer, comprising a first support portion and a second support portion, wherein the second support portion comprises a plurality of sub-support portions, wherein the plurality of sub-support portions are respectively connected to edges of the first support portion, and the plurality of sub-support portions and the first support portion form a polyhedral support structure having a closed space, and an opening is provided on the support layer; The light-emitting module includes a light-emitting panel, a flexible circuit board and a main circuit board. The light-emitting panel is arranged on a side of the second supporting part away from the enclosed space, and the main circuit board is arranged on a side of the first supporting part close to the enclosed space. One end of the flexible circuit board is connected to the light-emitting panel, and the other end passes through the opening to be connected to the main circuit board.

2. The light emitting device according to claim 1, characterized in that: The opening is provided at least in part of the sub-support portion or at a connection between at least in part of the sub-support portion and the first support portion.

3. The light emitting device according to claim 2, characterized in that: A bending area is provided at the connection between the first supporting portion and the plurality of sub-supporting portions, the opening is located in the bending area, and the bending area, the opening, the first supporting portion and the sub-supporting portion all overlap.

4. The light emitting device according to claim 3, characterized in that: Along the width direction of the opening, the center line of the opening and the center line of the bending area coincide with each other.

5. The light emitting device according to claim 4, characterized in that: The distance between the edge of the opening and the edge of the bending zone is half the width of the opening.

6. The light emitting device according to claim 3, characterized in that: The light emitting device further comprises a sealant, and along the width direction of the opening, the sealant covers from the connection between the first supporting portion and the plurality of sub-supporting portions to at least the edge of the opening.

7. The light emitting device according to claim 6, characterized in that: Along the width direction of the opening, the sealant extends from the edge of the opening to both sides of the opening until covering the area of ​​the bending zone except the opening.

8. The light emitting device according to claim 6, characterized in that: The sealant covers the opening and the area of ​​the bending zone located outside the opening.

9. The light emitting device according to claim 7 or 8, characterized in that: When there is a gap between the edge of the bending area and the light-emitting panel, the sealant covers the gap and extends to the edge of the light-emitting panel.

10. The light emitting device according to claim 9, characterized in that: The light emitting panel has a peripheral area, and the sealant extends to a side of the peripheral area away from the supporting layer.

11. The light emitting device according to claim 6, characterized in that: The light emitting device further comprises a decorative piece, wherein the decorative piece is arranged on a side of the sealant away from the supporting layer, and the decorative piece completely covers the opening.

12. The light emitting device according to claim 1, characterized in that: The polyhedral support structure satisfies the Euler formula: V-E+F=2; Wherein, V represents the number of vertices of the polyhedral support structure, E represents the number of edges of the polyhedral support structure, and F represents the number of faces of the polyhedral support structure.

13. The light emitting device according to claim 12, characterized in that: The first support portion and the sub-support portion are in the shape of regular triangles of the same size, and a plurality of the sub-support portions and the first support portion form a regular tetrahedron support structure with a closed space.

14. The light emitting device according to claim 12, characterized in that: The first support portion and the sub-support portion are in the shape of squares of the same size, and a plurality of the sub-support portions and the first support portion form a cubic support structure with a closed space.

15. The light emitting device according to claim 1, characterized in that: An opening is provided at the connection between each sub-support portion and the first support portion, the light-emitting panel includes a plurality of first light-emitting panels, and the flexible circuit board includes a plurality of first flexible circuit boards. The plurality of first light-emitting panels are respectively arranged on a side of the sub-support portion away from the enclosed space, one end of the first flexible circuit board is connected to the first light-emitting panel, and the other end passes through the opening and is connected to the main circuit board.

16. The light emitting device according to claim 14, characterized in that: The light-emitting panel includes a plurality of first light-emitting panels and at least one second light-emitting panel, the second light-emitting panel is a flexible panel, the flexible circuit board includes a plurality of first flexible circuit boards and a second flexible circuit board, the plurality of sub-support parts include a first sub-support part and a second sub-support part, the second sub-support part is arranged on the top surface and at least one side surface of the cube support structure, the first sub-support part is arranged on the remaining side surfaces of the cube support structure, the first light-emitting panel is arranged on the first sub-support part, the second light-emitting panel is arranged on the second sub-support part, the first sub-support part and the second sub-support part are both provided with openings at the connection with the first support part, one end of any one of the first flexible circuit board and the second flexible circuit board passes through the opening and is connected to the main circuit board, and the other end is respectively connected to the first light-emitting panel and the second light-emitting panel, the top surface of the cube support structure is arranged opposite to the first support part and is parallel to each other, and the side surfaces of the cube support structure are perpendicular to the first support part and are connected to each other.

17. The light emitting device according to claim 16, characterized in that: The second sub-supporting portion is arranged on the top surface and at least two opposite side surfaces of the cube supporting structure.

18. The light emitting device according to claim 15 or 16, characterized in that: Each of the sub-support parts protrudes in a direction away from the enclosed space, and a plurality of first light-emitting panels are respectively attached to a surface of the sub-support part away from the enclosed space.

19. The light emitting device according to claim 1, characterized in that: The light emitting device further comprises a protective glue and a waterproof glue. The protective glue is arranged on a side of the flexible circuit board away from the supporting layer, and the waterproof glue is arranged on a side of the protective glue away from the supporting layer.

20. The light emitting device according to claim 1, characterized in that: The light emitting panel comprises a packaging layer and a light emitting substrate. The packaging layer is connected to a side of the second supporting portion away from the closed space via a first adhesive layer. The light emitting substrate is arranged on a side of the packaging layer away from the second supporting portion.

21. The light emitting device according to claim 20, characterized in that: The light-emitting panel also includes a second adhesive layer, a filter film, a third adhesive layer and a protective film, the second adhesive layer is arranged on a side of the light-emitting substrate away from the second supporting portion, the filter film is arranged on a side of the second adhesive layer away from the second supporting portion, the third adhesive layer is arranged on a side of the filter film away from the second supporting portion, and the protective film is arranged on a side of the third adhesive layer away from the second supporting portion.

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