Light emitting assembly and vehicle

By installing light-emitting components of light-transmitting materials and micro-patterned layers in the vehicle, the problem of insufficient improvement of the interior atmosphere in the vehicle in the prior art is solved, and the effect of no interference in sight during night use is achieved and the harmonious atmosphere in the vehicle is achieved.

JP7678900B2Active Publication Date: 2025-05-16FUYAO GLASS IND GROUP CO LTD
View PDF 4 Cites 0 Cited by

Patent Information

Application Number
JP2023570164
Authority / Receiving Office
JP · JP
Patent Type
Patents
Current Assignee / Owner
Priority Date
2021-06-02
Filing Date
2022-06-02
Publication Date
2025-05-16
Estimated Expiration
2042-06-02

AI Technical Summary

Technical Problem

The prior art is difficult to effectively improve the interior atmosphere of the vehicle, especially when used at night, the light-grain layer may interfere with the driver's line of sight, and long-term exposure to the light-grain layer will lead to visual fatigue and a discordant interior atmosphere.

Method used

A light emitting component is designed, including a light-transmitting material and a pattern layer. The pattern layer displays an optical pattern when the light emitting component is activated. Through the combination of a micro pattern layer (diameter 0.025 mm to 0.26 mm, spacing 0.2 mm to 1.5 mm) and a light-transmitting material, light propagation and pattern display are achieved.

Benefits of technology

When the light emitting component is activated, the miniature pattern layer displays an optical pattern, improving the atmosphere inside the car, and maintaining a concealed state when not activated, avoiding interference with the driver's sight and the harmonious atmosphere inside the car.

✦ Generated by Eureka AI based on patent content.

Smart Images

  • Figure 0007678900000001
    Figure 0007678900000001
  • Figure 0007678900000002
    Figure 0007678900000002
  • Figure 0007678900000003
    Figure 0007678900000003
Patent Text Reader

Abstract

The present application provides a light emitting assembly and a vehicle. The light emitting assembly includes a light transmissive material and a pattern layer. The pattern layer is attached to a surface of the light transmissive material and includes a plurality of spaced apart micro-patterns. The radial dimension of the micro-patterns ranges from 0.025mm to 0.26mm, and the distance between adjacent micro-patterns ranges from 0.2mm to 1.5mm. The micro-patterns emit light so that the pattern layer appears when the light emitting assembly is energized. The light emitting assembly according to the present application can improve the atmosphere effect inside the vehicle.
Need to check novelty before this filing date? Find Prior Art

Description

[Technical field]

[0001] REFERENCE TO RELATED APPLICATIONS This application claims priority to China Patent Application No. 202110615170.0, filed on June 2, 2021, entitled "Light-emitting Assembly and Vehicle," the entire contents of which are incorporated herein by reference.

[0002] TECHNICAL FIELD This application relates to the field of vehicles, and in particular to light emitting assemblies and vehicles. [Background technology]

[0003] With the improvement of living standards, people's demands for quality of life are also increasing. For example, in the field of vehicles, there is a strong demand for improving the atmosphere effect inside the vehicle. Therefore, how to improve the atmosphere inside the vehicle has become the focus of research in recent years. Summary of the Invention

[0004] The present application provides a lighting assembly and a vehicle that can improve interior atmosphere effects.

[0005] The present application provides a light emitting assembly. The light emitting assembly includes a light transmissive material and a pattern layer. The pattern layer is attached to a surface of the light transmissive material and includes a plurality of spaced apart micro-patterns. The micro-patterns have a radial dimension ranging from 0.025mm to 0.26mm, and the distance between adjacent micro-patterns ranges from 0.2mm to 1.5mm. The micro-patterns emit light when the light emitting assembly is energized, revealing the pattern layer.

[0006] The light-transmitting material includes a first light-transmitting layer, an adhesive layer, and a second light-transmitting layer. The adhesive layer is for adhering the first light-transmitting layer and the second light-transmitting layer. The pattern layer is provided between the first light-transmitting layer and the second light-transmitting layer, or the pattern layer is provided on a surface of the second light-transmitting layer facing away from the first light-transmitting layer.

[0007] The second light-transmitting layer includes a light incident surface and a light exit surface. The light exit surface is a surface of the second light-transmitting layer facing away from the first light-transmitting layer. The light-emitting assembly further includes a light-emitting element at least partially disposed facing the light incident surface. The light-emitting element is for emitting light rays, and the light rays enter the interior of the second light-transmitting layer through the light incident surface. The pattern layer is for changing a propagation path of the light rays so that the light rays in the interior of the second light-transmitting layer are emitted from the light exit surface.

[0008] The micropattern can be self-illuminating, and when the micropattern photoluminesces, the pattern layer is revealed.

[0009] The light incident surface and the light exit surface are bent and in contact with each other. The light incident surface is at least a part of the peripheral surface of the second light transmissive layer. The light emitting element is provided facing the peripheral surface of the second light transmissive layer.

[0010] The second light-transmitting layer has a storage space, and a sidewall of the storage space constitutes a light incident surface. At least a portion of the light-emitting element is accommodated in the storage space.

[0011] The pattern layer is disposed between the first and second transparent layers, and the light incident surface and the light exit surface are located in the same plane.

[0012] The distance from the light emitting element to the second transparent layer is 10 mm to 15 mm. The light emitting assembly further includes an opaque cover. The cover is provided on one side of the light emitting element away from the first transparent layer in a direction from the first transparent layer to the second transparent layer, and is arranged to cover the light emitting element and 2nd transparent layer Covers the gap between.

[0013] The distance from the light emitting element to the second translucent layer is 0 mm to 10 mm. The light emitting assembly further includes an opaque cover. The cover is provided on one side of the second translucent layer away from the first translucent layer and covers the light emitting assembly and at least a part of the second translucent layer. The area of ​​the orthogonal projection of the cover onto the second translucent layer is the cover area, and the dimension of the cover area is 5 mm to 50 mm in the direction from the light emitting element toward the second translucent layer.

[0014] The distance from the light emitting element to the second transmissive layer is 0 mm to 10 mm. The light emitting assembly further includes an opaque cover and an opaque light blocking layer. The cover is provided on one side of the light emitting element away from the first light transmissive layer in a direction from the first light transmissive layer to the second light transmissive layer. The light blocking layer is provided on one side of the second light transmissive layer facing away from the first light transmissive layer, and the dimension of the light blocking layer is 5 mm to 40 mm in a direction from the light emitting element to the second light transmissive layer.

[0015] The thickness range of the micropattern is 0.01mm to 0.03mm.

[0016] The light transmittance of the micropattern is 10% to 85%.

[0017] The present application further provides a vehicle, comprising: a vehicle body and the above-mentioned light emitting assembly, the light emitting assembly being mounted on the vehicle body.

[0018] In the present application, when the light emitting assembly is energized, the micro-pattern can emit light from the light emitting surface of the transparent member to reveal the pattern layer, and when the light emitting assembly is applied to a vehicle, people inside the vehicle can see the luminous pattern layer, thereby improving the atmosphere effect inside the vehicle. [Brief description of the drawings]

[0019] In order to more clearly describe the technical solutions of the embodiments of the present application, the following briefly introduces the drawings necessary for describing the embodiments. Obviously, the drawings described are only some embodiments of the present application, and those skilled in the art can obtain other drawings by these drawings without creative efforts. [Figure 1] FIG. 1 is a schematic diagram showing a vehicle according to an embodiment of the present application. [Diagram 2] FIG. 2 is a schematic diagram of a light emitting assembly according to an embodiment of the present application when energized. [Diagram 3] FIG. 3 is a schematic diagram illustrating a portion of a pattern layer according to an embodiment of the present application. [Figure 4] FIG. 4 is a schematic diagram of a light emitting assembly according to an embodiment of the present application when not energized. [Diagram 5] FIG. 5 is a cross-sectional view of a portion of a light emitting assembly according to one embodiment of the present application. [Figure 6] FIG. 6 is a cross-sectional view of a portion of a light emitting assembly according to another embodiment of the present application. [Figure 7] FIG. 7 is a cross-sectional view of a portion of a light emitting assembly according to yet another embodiment of the present application. [Figure 8] FIG. 8 is a cross-sectional view of a portion of a light emitting assembly according to yet another embodiment of the present application. [Figure 9] FIG. 9 is a cross-sectional view of a portion of a light emitting assembly according to yet another embodiment of the present application. [Figure 10] FIG. 10 is a cross-sectional view of a portion of a light emitting assembly according to yet another embodiment of the present application. [Figure 11] FIG. 11 is a cross-sectional view of a portion of a light emitting assembly according to yet another embodiment of the present application. [Figure 12] FIG. 12 is a cross-sectional view of a portion of a light emitting assembly according to yet another embodiment of the present application. [Figure 13] FIG. 13 is a cross-sectional view of a portion of a light emitting assembly according to yet another embodiment of the present application. [Figure 14] FIG. 14 is a cross-sectional view of a portion of a light emitting assembly according to yet another embodiment of the present application. DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS

[0020] Hereinafter, with reference to the drawings of the embodiments of the present application, the technical solutions in the embodiments of the present application will be clearly and comprehensively described. Obviously, the described embodiments are only some of the embodiments of the present application, but not all of the embodiments. Based on the embodiments in the present application, all other embodiments that a person skilled in the art can obtain without creative efforts all belong to the protection scope of the present application.

[0021] The terms "first", "second", etc. in the specification, claims and the above drawings of this application are intended to distinguish different objects, not to describe a particular order. Also, the terms "comprise", "have" and any variations thereof are intended to cover, not exclude, the inclusion of other components. For example, a process, method, system, product, or device that includes a series of operations or units is not limited to the listed operations or units, and may optionally include unlisted operations or units, or may optionally include other operations or units inherent to those processes, methods, products, or devices.

[0022] An "embodiment" referred to in this specification means that a particular feature, structure, or characteristic described in connection with an embodiment can be included in at least one embodiment of the present application. The wording anywhere in the specification does not necessarily refer to the same embodiment, nor is it an independent or alternative embodiment mutually exclusive with other embodiments. Those skilled in the art can understand, explicitly or implicitly, that an embodiment described in this specification can be combined with other embodiments when there is no contradiction between at least two embodiments combined.

[0023] Referring to FIG. 1, the present application provides a vehicle 1. The vehicle 1 includes a vehicle body 10 and a light emitting assembly 20 described in any of the following embodiments. The light emitting assembly 20 is mounted on the vehicle body 10. The light emitting assembly 20 may be, but is not limited to, a sunroof of the vehicle 1. The sunroof is attached to a roof panel of the vehicle 1, and external light can pass through the sunroof and enter the inside of the vehicle 1. In the following embodiments of the present application, the light emitting assembly 20 is exemplified as only a sunroof. The vehicle body 10 refers to main components and electronic components that constitute the vehicle 1, and the vehicle body 10 may include, for example, a body frame, a seat, etc.

[0024] Next, the light emitting assembly 20 in the vehicle 1 according to the above embodiment will be described in detail with reference to the drawings.

[0025] 2 and 3, the present application provides a light-emitting assembly 20. The light-emitting assembly 20 includes a light-transmitting material 210 and a pattern layer 220. The light-transmitting material 210 may be, but is not limited to, glass or transparent plastic. The pattern layer 220 is attached to the surface of the light-transmitting material 210. The pattern layer 220 may be formed on the light-transmitting material 210 by means of printing, spraying, or the like, but is not limited to such means. The pattern layer 220 includes a plurality of micro-patterns 221, that is, the pattern layer 220 is composed of several micro-patterns 221. The shape of the micro-pattern 221 may be a circle, an ellipse, a triangle, a rectangle, a diamond, or a polygon with five or more sides. The pattern presented by the entire pattern layer 220 may be a number, a Chinese character, a symbol, a person, etc., and may be specifically set according to needs, and is not limited here. The plurality of micro-patterns 221 are spaced apart. The radial dimension range of the micropattern 221 is 0.025 mm to 0.26 mm, that is, the micropattern 221 is any shape that can be contained within a circle with a diameter range of 0.025 to 0.15 mm. The distance between adjacent micropatterns 221 ranges from 0.2 mm to 1.5 mm.

[0026] The micro patterns 221 may be arranged at equal intervals. The micro patterns 221 may be arranged at unequal intervals. If the micro patterns 221 are arranged at unequal intervals, moire can be eliminated, and the phenomenon of uneven light emission over the entire pattern can be improved by adjusting the intervals.

[0027] 2, when the light-emitting assembly 20 is energized, the micro-pattern 221 emits light to reveal the pattern layer 220, so that people inside the vehicle 1 can see the emitting pattern layer 220, thus enhancing the atmosphere effect inside the vehicle. The light-emitting principle of the micro-pattern 221 will be specifically described in the following embodiments.

[0028] As can be seen, if the dimensions of the micro-pattern 221 are too large, even when the light-emitting assembly 20 is not energized, the pattern layer 220 is relatively conspicuous, i.e., people inside the vehicle can intuitively see the pattern layer 220 over a long distance. This brings about at least three problems: 1. Because the atmosphere effect is generally used at night, the pattern layer 220 visible during the day will block part of the visible area, thereby blocking part of the line of sight of people inside the vehicle, thereby reducing the comfort of people riding. 2. People inside the vehicle can always see the pattern layer 220, so they will inevitably get tired of looking at it after a long time. 3. Usually, the atmosphere effect inside the vehicle is harmonious as a whole, so the pattern layer 220 that is always displayed when other atmosphere light sources inside the vehicle are not lit will destroy the harmony of the atmosphere inside the vehicle.

[0029] In the embodiment of the present application, the dimensions of the micropatterns 221 are small, at the micrometer level, so that when the light emitting assembly 20 is not energized, the pattern layer 220 consisting of multiple micropatterns 221 cannot be recognized by the human eye outside a certain distance (230 mm or more), that is, when the light emitting assembly 20 is not energized, the pattern layer 220 is in a "hidden" state (as shown in FIG. 4), thereby overcoming the above-mentioned three problems.

[0030] Optionally, the thickness range of the micropattern 221 is 0.01 mm to 0.03 mm.

[0031] Since the dimensions of the micro-pattern 221 are small, it may or may not transmit light. Optionally, the micro-pattern 221 can transmit light, and the light transmittance of the micro-pattern 221 is 10%-85%. It can be understood that if the micro-pattern 221 has a certain light transmittance, the pattern layer 220 will be less visible to people inside the vehicle, that is, the "hiding" effect of the pattern layer 220 will be better when the light-emitting assembly 20 is not energized.

[0032] 5 and 6, the light-transmitting material 210 includes a first light-transmitting layer 211, an adhesive layer 213, and a second light-transmitting layer 212, which are laminated together. The adhesive layer 213 is used to adhere the first light-transmitting layer 211 and the second light-transmitting layer 212 together. The first light-transmitting layer 211 and the second light-transmitting layer 212 may be, but are not limited to, glass, plastic, and the like. The first light-transmitting layer 211 faces the outside of the vehicle 1, and the second light-transmitting layer 212 faces the inside of the vehicle 1.

[0033] Referring to FIG. 5, in one embodiment, the pattern layer 220 is provided between the first light-transmitting layer 211 and the second light-transmitting layer 212. This installation form can avoid the damage of the pattern layer 220 caused by external objects and improve the service life. Specifically, the pattern layer 220 may be provided between the first light-transmitting layer 211 and the adhesive layer 213, or between the second light-transmitting layer 212 and the adhesive layer 213. The pattern layer 220 may be pre-formed on the surface of the first light-transmitting layer 211 or the second light-transmitting layer 212, and the two light-transmitting layers may be bonded together by the adhesive layer 213. The pattern layer 220 may be pre-formed on the surface of the adhesive layer 213, and the first light-transmitting layer 211 and the second light-transmitting layer 212 may be bonded together by the adhesive layer 213 on which the pattern layer 220 is formed.

[0034] 6, in another embodiment, the pattern layer 220 is provided on the surface of the second transparent layer 212 facing the first transparent layer 211. As can be seen, in the process of bonding the first transparent layer 211 and the second transparent layer 212 by the adhesive layer 213, the first transparent layer 211 and the second transparent layer 212 need to be pressed by an external force, so as to ensure the strong bonding between the first transparent layer 211 and the second transparent layer 212. Therefore, compared with the above embodiment, this embodiment can avoid the problem of the pattern layer 220 being pressed against the first transparent layer 211 and the second transparent layer 212 and being deformed, and can ensure the original shape of the pattern layer 220.

[0035] Next, the light emitting principle of the pattern layer 220 will be described in detail with reference to the drawings.

[0036] In the first embodiment, the micro-patterns 221 can be self-illuminating, and the pattern layer 220 appears. That is, each of the micro-patterns 221 can generate photoluminescence, and the human eye receives the light beams from the multiple micro-patterns 221 and forms an image. If the pattern layer 220 is provided between the first transparent layer 211 and the second transparent layer 212, the light beams emitted from the pattern layer 220 will pass through the second transparent layer 212 and enter the human eye. If the pattern layer 220 is provided on the surface of the second transparent layer 212 facing away from the first transparent layer 211, the light beams emitted from the pattern layer 220 will directly enter the human eye without passing through the second transparent layer 212.

[0037] 7 to 11, in the second embodiment, the second transparent layer 212 includes a light incident surface M1 and a light exit surface M2. The light exit surface M2 is a surface of the second transparent layer 212 facing away from the first transparent layer 211. The light emitting assembly 20 further includes a light emitting element 230, at least a part of which is provided facing the light incident surface M1. The light emitting element 230 is for emitting light, and the light passes through the light incident surface M1 and enters the inside of the second transparent layer 212. Note that the refractive index of the second transparent layer 212 is greater than the refractive index of air. When the light reaches the interface between the second transparent layer 212 and air, total reflection occurs. When the light reaches the interface between the second transparent layer 212 and the pattern layer 220, the pattern layer 220 is for changing the propagation path of the light inside the second transparent layer 212 so that the light inside the second transparent layer 212 is emitted from the light exit surface M2. Total reflection occurs when, when a ray of light travels from a medium with a high refractive index to a medium with a low refractive index, the angle of incidence is greater than a critical angle θc (the ray of light moves away from the normal), and no ray of light is refracted, and all of the incident ray of light is reflected rather than entering the medium with the low refractive index.

[0038] Optionally, the refractive index of the adhesive layer 213 is smaller than the refractive index of the second transparent layer 212, so that the light inside the second transparent layer 212 can be prevented from being refracted by the adhesive layer 213 and exiting, and sufficient light can be ensured to exit from the pattern layer 220.

[0039] The light-emitting element 230 includes a printed circuit board (PCB) 231 and a number of light-emitting diodes (LEDs) 232, which are electrically connected to each other. The LEDs can emit light of various colors, so that the pattern layer 220 can exhibit different colors.

[0040] Next, based on the above-mentioned second embodiment, different installation modes of the pattern layer 220 and the light emitting element 230 will be described separately with reference to the drawings.

[0041] 7 and 8, in one embodiment, the pattern layer 220 is provided between the first transparent layer 211 and the second transparent layer 212. The light incident surface M1 and the light exit surface M2 are bent and in contact with each other. The light incident surface M1 is at least a part of the peripheral surface of the second transparent layer 212. The light emitting element 230 is provided opposite to the peripheral surface of the second transparent layer 212. Specifically, the light incident surface M1 is a side surface of the second transparent layer 212, and the side surface is located at the edge of the second transparent layer 212. The PCB is provided along the edge of the second transparent layer 212, and a plurality of LEDs are arranged on the PCB at intervals along the edge of the second transparent layer 212, and the LEDs are used to emit light toward the side surface of the second transparent layer 212 when energized. Optionally, the first transparent layer 211 protrudes from the second transparent layer 212 to form a receiving space K1 together. The light emitting element 230 is accommodated in the receiving space K1. This configuration is advantageous in that the protruding portion of the first light transmitting layer 211 protects the light emitting element 230 from being damaged by external objects.

[0042] 7, in the structural form in which the pattern layer 220 is disposed between the adhesive layer 213 and the second transparent layer 212, when the light inside the second transparent layer 212 reaches the interface between the second transparent layer 212 and the micro-pattern 221, it is reflected and the propagation path of the light is changed, and finally it is emitted from the light emitting surface M2, that is, the total reflection of the light inside the second transparent layer 212 is destroyed, so that the person inside the vehicle 1 can visually see the luminous pattern layer 220.

[0043] 8, the refractive index of the pattern layer 220 is greater than that of the second transparent layer 212. In a configuration in which the pattern layer 220 is provided on the surface of the second transparent layer 212 facing away from the first transparent layer 211 (i.e., the pattern layer 220 is provided on the light exit surface M2), when the light inside the second transparent layer 212 reaches the interface between the second transparent layer 212 and the micropattern 221, it is refracted by the micropattern 221 and exits. That is, the total reflection of the light inside the second transparent layer 212 is destroyed, so that people inside the vehicle 1 can visually see the luminous pattern layer 220.

[0044] 9 and 10, in another embodiment, the second transparent layer 212 has a storage space K2. The side wall of the storage space K2 constitutes a light incident surface M1. The light emitting element 230 is at least partially accommodated in the storage space K2. Specifically, in the direction from the second transparent layer 212 to the first transparent layer 211, the storage space K2 may or may not penetrate the second transparent layer 212 (i.e., the storage space K2 is a recessed groove in the second transparent layer 212). The PCB is connected to the second transparent layer 212 and covers at least a part of the opening communicating with the outside world of the storage space K2. The LED is at least partially disposed in the storage space K2. As can be seen, this arrangement is advantageous for avoiding damage to the LED by the outside world, and is also advantageous for the light in the storage space K2 to escape to the outside of the storage space K2, so that the brightness of the pattern layer 220 can be kept sufficiently bright with a small amount of electricity.

[0045] 9, in the structural form in which the pattern layer 220 is disposed between the adhesive layer 213 and the second transparent layer 212, when the light inside the second transparent layer 212 reaches the interface between the second transparent layer 212 and the micro-pattern 221, it is reflected and the light propagation path is changed, and finally it is emitted from the light emitting surface M2, that is, the total reflection of the light inside the second transparent layer 212 is destroyed, so that the person inside the vehicle 1 can visually see the luminous pattern layer 220.

[0046] 10, the refractive index of the pattern layer 220 is greater than that of the second transparent layer 212. In a configuration in which the pattern layer 220 is provided on the surface of the second transparent layer 212 facing away from the first transparent layer 211 (i.e., the pattern layer 220 is provided on the light exit surface M2), when the light inside the second transparent layer 212 reaches the interface between the second transparent layer 212 and the micropattern 221, it is refracted by the micropattern 221 and exits. That is, the total reflection of the light inside the second transparent layer 212 is destroyed, so that people inside the vehicle 1 can visually see the luminous pattern layer 220.

[0047] 11, in yet another embodiment, the pattern layer 220 is disposed between the adhesive layer 213 and the second transparent layer 212, and the light incident surface M1 and the light exit surface M2 are located in the same plane, that is, the light incident surface M1 and the light exit surface M2 are in the same plane of the second transparent layer 212. The PCB includes a mounting portion 2311 and an extending portion 2312. The mounting portion 2311 has an accommodating space K3. The extending portion 2312 extends from the periphery of the mounting portion 2311 in a direction away from the accommodating space K3. The LED is connected to the mounting portion 2311 and accommodated in the accommodating space K3. The extending portion 2312 is connected to the light incident surface M1, which is a structural form that is advantageous for preventing the light emitted from the LED from leaking out of the accommodating space K3. The light emitted from the LED enters the second transparent layer 212 through the light incident surface M1, and when the light inside the second transparent layer 212 reaches the interface between the second transparent layer 212 and the micro-pattern 221, it is reflected and the light propagation path is changed, and finally it is emitted from the light exit surface M2. That is, the total reflection of the light inside the second transparent layer 212 is destroyed, so that the person inside the vehicle 1 can visually see the luminous pattern layer 220. Optionally, the light emitting element 230 is disposed close to the edge of the second transparent layer 212, and the orthogonal projection of the light emitting element 230 on the light exit surface M2 and the orthogonal projection of the pattern layer 220 on the light exit surface M2 do not overlap, so that the light emitting element 230 can avoid blocking the pattern layer 220, which is favorable for improving the visual effect.

[0048] As can be seen from the experiment, if the positional relationship of the three elements, the light emitting element 230, the second transparent layer 212, and the cover 240, is improperly installed, the following technical problems will occur: 1. Since the LED in the light emitting element 230 is the light source, a granular light source (hereinafter referred to as a granular problem) will appear on the edge of the second transparent layer 212 close to the LED. 2. Scattered light will appear within a range of 10 mm from the LED in the light emission direction of the LED. That is, when the LED emits a mixed light of non-primary colors, a light beam of various mixed colors (hereinafter referred to as a scattering problem) will appear within a range of 10 mm from the LED in the light emission direction of the LED. If the above granular problem and scattering problem occur, it will affect the view of the light emitting pattern layer 220 by people inside the car, and will not be in harmony with the overall atmosphere of the car.

[0049] Three embodiments for solving the above-mentioned granularity and scattering problems are introduced and illustratively described based on the structures shown in FIG. 7 and FIG.

[0050] 12, in one embodiment, a distance H1 from the light emitting element 230 to the second transmissive layer 212 is 10 mm to 15 mm. The light emitting assembly 20 further includes an opaque cover 240. The cover 240 is provided on one side of the light emitting element 230 away from the first transmissive layer 211 in a direction from the first transmissive layer 211 to the second transmissive layer 212, and is disposed between the light emitting element 230 and the second transmissive layer 212. 230 and the second light-transmitting layer 212 In other words, the range of 10 mm to 15 mm from the light emitting element 230 in the light emission direction of the light emitting element 230 is covered by the cover 240.

[0051] 13, in another embodiment, a distance H1 from the light emitting element 230 to the second translucent layer 212 is 0 mm to 10 mm. The light emitting assembly 20 further includes an opaque cover 240. The cover 240 is provided on one side of the second translucent layer 212 away from the first translucent layer 211, and covers the light emitting assembly 20 and at least a part of the second translucent layer 212. When the distance H1 from the light emitting element 230 to the second translucent layer 212 is not zero (i.e., there is a gap between them), the cover 240 is disposed between the light emitting element 230 and the second translucent layer 212 and covers the light emitting element 20 and at least a part of the second translucent layer 212. 230 and the second light-transmitting layer 212The cover 240 covers the gap between the light emitting element 230 and the second light transmissive layer 212. The area of ​​the orthogonal projection of the cover 240 onto the second light transmissive layer 212 is the cover area. The size of the cover area (hereinafter, abbreviated as the first cover dimension H2) is 5 mm to 50 mm in the direction from the light emitting element 230 to the second light transmissive layer 212. Specifically, when the distance H1 from the light emitting element 230 to the second light transmissive layer 212 is 0 mm, the first cover dimension H2 is 15 mm to 50 mm. When the distance H1 from the light emitting element 230 to the second light transmissive layer 212 is 10 mm, the first cover dimension H2 is 5 mm to 50 mm.

[0052] 14, in yet another embodiment, a distance H1 from the light emitting element 230 to the second translucent layer 212 is 0 mm to 10 mm. The light emitting assembly 20 further includes an opaque cover 240 and an opaque light blocking layer 250. The cover 240 is provided on one side of the light emitting element 230 away from the first translucent layer 211 in a direction from the first translucent layer 211 to the second translucent layer 212. When the distance H1 from the light emitting element 230 to the second translucent layer 212 is not zero (i.e., there is a gap between them), the cover 240 is disposed on the light emitting element 230. 230 and the second light-transmitting layer 212 The light-shielding layer 250 covers the gap between the first light-transmitting layer 211 and the second light-transmitting layer 212. The light-shielding layer 250 is provided on one side of the second light-transmitting layer 212 facing away from the first light-transmitting layer 211. The dimension of the light-shielding layer 250 (hereinafter, abbreviated as second cover dimension H3) is 5 mm to 40 mm in the direction from the light-emitting element 230 to the second light-transmitting layer 212. Specifically, when the distance H1 from the light-emitting element 230 to the second light-transmitting layer 212 is 0 mm, the second cover dimension H3 is 15 mm to 40 mm. When the distance H1 from the light-emitting element 230 to the second light-transmitting layer 212 is 10 mm, the second cover dimension H3 is 5 mm to 40 mm.

[0053] Although the embodiments of the present application have been shown and described above, the above embodiments are illustrative and should not be understood as limiting the present application. Those skilled in the art may make changes, modifications, substitutions and variations to the above embodiments within the scope of the present application. These improvements and embellishments should also fall within the protection scope of the present application. [Explanation of symbols]

[0054] 1. Vehicle 10...Vehicle body 20…Light emitting assembly 210…Translucent material 211...First transparent layer 212...Second transparent layer 213...adhesive layer 220…Pattern layer 221...Micro pattern 230...Light emitting element 231...Circuit board 2311…Installation section 2312...Extension part 232...Light emitting diode 240…Cover 250...Light blocking layer K1: Receiving space K2: Storage space K3…Containment space M1…Light incidence surface M2…Light exit surface

Claims

1. 1. A light emitting assembly comprising: The light emitting assembly includes a light-transmitting material and a pattern layer, the pattern layer is attached to a surface of the light-transmitting material and includes a plurality of spaced apart micro-patterns, the radial dimension of the micro-patterns ranges from 0.025 mm to 0.26 mm, the distance between adjacent micro-patterns ranges from 0.2 mm to 1.5 mm, and the thickness of the micro-patterns ranges from 0.01 mm to 0.03 mm, and the micro-patterns emit light such that the entire pattern layer is revealed when the light emitting assembly is energized. A light emitting assembly comprising:

2. The light-transmitting material includes a first light-transmitting layer, an adhesive layer, and a second light-transmitting layer, the adhesive layer is for adhering the first light-transmitting layer and the second light-transmitting layer, and the pattern layer is provided between the first light-transmitting layer and the second light-transmitting layer, or the pattern layer is provided on a surface of the second light-transmitting layer facing away from the first light-transmitting layer.

10. The light emitting assembly of claim 1 .

3. the second light-transmitting layer includes a light incident surface and a light exit surface, the light exit surface being a surface of the second light-transmitting layer facing away from the first light-transmitting layer, the light-emitting assembly further includes a light-emitting element at least a portion of which is disposed facing the light incident surface, the light-emitting element is for emitting light rays, the light rays enter the second light-transmitting layer through the light incident surface, and the pattern layer is for changing a propagation path of the light rays so that the light rays in the second light-transmitting layer are emitted from the light exit surface.

3. The light emitting assembly of claim 2.

4. The micropattern is capable of self-illumination, and when the micropattern photoluminesces, the pattern layer is revealed.

3. The light emitting assembly of claim 2.

5. the light incident surface and the light exit surface are bent and in contact with each other, the light incident surface is at least a part of a peripheral surface of the second light transmitting layer, and the light emitting element is provided opposite to the peripheral surface of the second light transmitting layer.

4. The light emitting assembly of claim 3.

6. the second light-transmitting layer has a storage space, a sidewall of the storage space constitutes the light incident surface, and the light-emitting element is at least partially accommodated in the storage space; 4. The light emitting assembly of claim 3.

7. The pattern layer is provided between the first light-transmitting layer and the second light-transmitting layer, and the light incident surface and the light exit surface are located in the same plane.

4. The light emitting assembly of claim 3.

8. a distance between the light emitting element and the second transparent layer is 10 mm to 15 mm; and the light emitting assembly further includes an opaque cover, the cover being provided on one side of the light emitting element away from the first transparent layer in a direction from the first transparent layer toward the second transparent layer, and covering a gap between the light emitting element and the second transparent layer.

6. The light emitting assembly of claim 5.

9. a distance from the light emitting element to the second transparent layer is 0 mm to 10 mm; the light emitting assembly further includes an opaque cover, the cover being provided on one side of the second transparent layer away from the first transparent layer, covering the light emitting assembly and at least a portion of the second transparent layer; an area of ​​an orthogonal projection of the cover onto the second transparent layer is a cover area, and a dimension of the cover area is 5 mm to 50 mm in a direction from the light emitting element toward the second transparent layer; 6. The light emitting assembly of claim 5.

10. a distance from the light emitting element to the second transparent layer is 0 mm to 10 mm; the light emitting assembly further includes an opaque cover and an opaque light blocking layer, the cover being provided on one side of the light emitting element away from the first transparent layer in a direction from the first transparent layer to the second transparent layer, the light blocking layer being provided on one side of the second transparent layer facing away from the first transparent layer, and a dimension of the light blocking layer being 5 mm to 40 mm in a direction from the light emitting element to the second transparent layer; 6. The light emitting assembly of claim 5.

11. The refractive index of the adhesive layer is smaller than the refractive index of the second light-transmitting layer.

3. The light emitting assembly of claim 2.

12. The light transmittance of the micropattern is 10% to 85%.

10. The light emitting assembly of claim 1 .

13. A vehicle, The vehicle comprises a vehicle body and a light emitting assembly according to any one of claims 1 to 12, the light emitting assembly being mounted on the vehicle body. A vehicle characterized by:

Citation Information

Patent Citations

  • Surface light source device and liquid crystal display device

    JP2011154998A

  • Vehicle luminous glazing and its manufacture

    JP2013517989A

  • Transparent roof assembly for vehicle roof

    JP2020138725A

  • Light guide with patterned ink

    JP2020501325A