Pixelated lighting device, lamp assembly and vehicle

Abstract

The utility model specifically discloses a pixelated lighting device, a lamp assembly and a vehicle, and belongs to the field of vehicle lighting technology. The pixelated lighting device includes: a pixel plate, a light guide plate and a plurality of light sources, the pixel plate is provided with a plurality of pixel holes, and the plurality of pixel holes are arranged in a matrix; the light guide plate is arranged on the rear side of the pixel plate, the light guide plate is provided with a plurality of light guide holes, and each light guide hole is arranged corresponding to a plurality of pixel holes; a plurality of light sources are arranged on the rear side of the light guide plate, and the plurality of light sources are arranged one by one corresponding to the plurality of light guide holes, so that each light source can emit light toward the plurality of pixel holes corresponding to the light guide holes. The utility model can reduce the use of light sources, effectively avoid the serious heating problem caused by a large number of light sources densely arranged inside the pixelated lighting device, and not only reduce the heat dissipation difficulty of the pixelated lighting device, but also reduce the manufacturing cost of the pixelated lighting device.

Description

Technical Field

[0001] The utility model relates to the technical field of vehicle lighting, and in particular to a pixelated lighting device, a vehicle lamp assembly and a vehicle. Background Art

[0002] With the development of car lighting technology, car lighting systems that can achieve matrix lighting and pixel display have been widely used due to their precise light control and flexible display methods. However, when implementing pixel display, existing pixel lighting systems generally adopt a design scheme where one pixel corresponds to one LED light source. Since a large number of LED light sources are required, not only will the manufacturing cost of the car lights increase significantly, but the car lights will also heat up severely, affecting their service life. Utility Model Content

[0003] The utility model aims to solve at least one of the technical problems existing in the prior art. To this end, the utility model proposes a pixelated lighting device, which can reduce the use of light sources, thereby reducing the manufacturing cost of the vehicle lamp, and can also reduce the heat generation of the vehicle lamp.

[0004] The utility model also provides a vehicle lamp assembly and a vehicle having the pixelated lighting device.

[0005] According to a first aspect of the utility model, a pixelated lighting device is provided, comprising: a pixel plate, a light guide plate and a plurality of light sources, wherein the pixel plate is provided with a plurality of pixel holes, and the plurality of pixel holes are arranged in a matrix; the light guide plate is provided at the rear side of the pixel plate, and the light guide plate is provided with a plurality of light guide holes, and each of the light guide holes is provided corresponding to the plurality of pixel holes; the plurality of light sources are provided at the rear side of the light guide plate, and the plurality of light sources are provided in a one-to-one correspondence with the plurality of light guide holes, so that each of the light sources can emit light toward the plurality of pixel holes corresponding to the light guide holes.

[0006] A pixelated lighting device according to an embodiment of the utility model has at least the following beneficial effects:

[0007] The embodiment of the utility model realizes matrix lighting and pixel display by setting a pixel board, in which multiple pixel holes are arranged in a matrix; and realizes matrix lighting and pixel display by setting a light guide plate between the light source and the pixel board, wherein the light guide plate is provided with multiple light guide holes, each light guide hole is arranged corresponding to the multiple pixel holes, and multiple light sources are arranged one-to-one with the multiple light guide holes, so that each light source can emit light toward the multiple pixel holes corresponding to the light guide hole, that is, each light source can make the multiple pixel holes emit light, thereby realizing a reduction in the use of light sources, and effectively avoiding the serious heating problem caused by a large number of light sources densely arranged inside the pixelated lighting device, which not only reduces the heat dissipation difficulty of the pixelated lighting device, but also simplifies the maintenance process, thereby reducing the risk of failure of the pixelated lighting device, extending its service life, and can also reduce the manufacturing cost of the pixelated lighting device. The utility model is suitable for a vehicle lamp assembly, can reduce the manufacturing cost of the vehicle lamp, and reduce the heating of the vehicle lamp.

[0008] According to some embodiments of the present invention, the light guide hole is a square hole, and along the front-to-back direction, each corner of the projection of the light guide hole covers at least one pixel hole.

[0009] According to some embodiments of the present invention, the pixelated lighting device further includes a circuit board, which is disposed on the rear side of the light guide plate, and the plurality of light sources are evenly arranged in the circuit board.

[0010] According to some embodiments of the present invention, the circuit board and the light guide plate are fixedly connected via fasteners.

[0011] According to some embodiments of the present invention, the pixelated lighting device further includes a shell, the shell is provided with an installation cavity, the circuit board, the light guide plate and the pixel plate are sequentially arranged in the installation cavity and are respectively connected to the shell through fasteners.

[0012] According to some embodiments of the present invention, the pixelated lighting device further includes a light distribution component, which is disposed on the front side of the pixel plate and bonded to the housing.

[0013] According to some embodiments of the present invention, the pixelated lighting device further includes a diffusion plate, wherein the diffusion plate is disposed between the pixel plate and the light guide plate, and the diffusion plate is fixedly connected to the light guide plate via a fastener.

[0014] According to some embodiments of the present invention, along the front-to-back direction, the projection of the light guide hole covers four of the pixel holes.

[0015] According to a second aspect of the utility model, a vehicle lamp assembly is provided, comprising the pixelated lighting device disclosed in the first aspect of the utility model.

[0016] A vehicle lamp assembly according to an embodiment of the utility model has at least the following beneficial effects:

[0017] The headlight assembly adopts the pixelated lighting device of the first aspect embodiment, and the headlight assembly optimizes the structure of the pixelated lighting device by arranging a light guide plate between the light source and the pixel plate, wherein the light guide plate is provided with a plurality of light guide holes, each light guide hole is arranged corresponding to a plurality of pixel holes, and a plurality of light sources are arranged one by one corresponding to the plurality of light guide holes, so that each light source can emit light toward the plurality of pixel holes corresponding to the light guide hole, that is, each light source can make a plurality of pixel holes emit light, thereby achieving a reduction in the use of light sources, and effectively avoiding the problem of severe heating of the headlight assembly caused by a large number of light sources densely arranged inside the pixelated lighting device, which not only reduces the heat dissipation difficulty of the headlight assembly, but also simplifies its maintenance process, thereby reducing the risk of failure of the headlight assembly, extending its service life, and reducing the manufacturing cost of the headlight assembly.

[0018] According to a third aspect of the utility model, a vehicle is provided, comprising the vehicle lamp assembly disclosed in the second aspect of the utility model.

[0019] A vehicle according to an embodiment of the utility model has at least the following beneficial effects:

[0020] The vehicle adopts the headlight assembly of the second aspect of the embodiment. Since the vehicle's headlight assembly has been structurally optimized, the use of light sources has been reduced, effectively avoiding the problem of severe heating of the headlight assembly caused by a large number of light sources densely arranged inside the pixelated lighting device. This not only reduces the heat dissipation difficulty of the headlight assembly, but also simplifies its maintenance process, thereby reducing the risk of vehicle failure and reducing the manufacturing cost of the vehicle.

[0021] Additional aspects and advantages of the present invention will be given in part in the following description, and in part will become apparent from the following description, or will be learned through the practice of the present invention. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] The present invention is further described below with reference to the accompanying drawings and embodiments, wherein:

[0023] Figure 1 It is a structural schematic diagram of an embodiment of a pixelated lighting device of the utility model;

[0024] Figure 2 An exploded view of an embodiment of a pixelated lighting device of the utility model;

[0025] Figure 3 for Figure 2 The enlarged schematic diagram of point A in the middle;

[0026] Figure 4 for Figure 2The enlarged schematic diagram of point B in the middle;

[0027] Figure 5 It is a rear view of a pixel plate and a light guide plate in an embodiment of a pixelated lighting device of the utility model;

[0028] Figure 6 for Figure 5 Enlarged schematic diagram of point C in the middle.

[0029] Reference numerals:

[0030] Pixelated lighting device 10;

[0031] Pixel plate 100; pixel hole 110;

[0032] Light guide plate 200; light guide hole 210;

[0033] Circuit board 300;

[0034] Housing 400; mounting cavity 410;

[0035] Optical accessories 500;

[0036] The diffuser plate 600 . DETAILED DESCRIPTION

[0037] The embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements having the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are only used to explain the present invention, and cannot be understood as limiting the present invention.

[0038] In the description of the present invention, it should be understood that descriptions involving orientation, such as up, down, inside, outside, etc., indicating orientations or positional relationships, are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as a limitation on the present invention.

[0039] In the description of the utility model, if there is a description of first and second, it is only for the purpose of distinguishing the technical features, and cannot be understood as indicating or implying the relative importance or implicitly indicating the number of the indicated technical features or implicitly indicating the order of the indicated technical features.

[0040] In the description of the present invention, unless otherwise clearly defined, terms such as setting, installing, connecting, etc. should be understood in a broad sense, and technicians in the relevant technical field can reasonably determine the specific meanings of the above terms in the present invention based on the specific content of the technical solution.

[0041] Some embodiments of the present invention provide a pixelated lighting device 10 for use in a vehicle lamp assembly. Figures 1 to 6 A pixelated lighting device 10 is shown for illustration.

[0042] Reference Figure 2 As shown, in the embodiment of the present utility model, the pixelated lighting device 10 includes: a pixel plate 100, a light guide plate 200 and a plurality of light sources, wherein, with reference to Figure 3 As shown, in this embodiment, the pixel plate 100 is provided with a plurality of pixel holes 110, and the plurality of pixel holes 110 are arranged in a matrix, and each pixel hole 110 penetrates the pixel plate 100 in the front-to-back direction. The matrix arrangement may include a linear arrangement, a rectangular arrangement, and a circular arrangement, which is not limited in this embodiment. It should be noted that the pixel plate 100 is made of an opaque material, and light can only pass through the pixel holes 110. Therefore, each pixel hole 110 represents a pixel in the pixel display.

[0043] Reference Figure 2 and Figure 4 As shown, in the embodiment of the present invention, the light guide plate 200 is arranged at the rear side of the pixel plate 100, that is, between the light source and the pixel plate 100, and the light guide plate 200 is provided with a plurality of light guide holes 210, each of which penetrates the light guide plate 200 in the front-to-back direction. The plurality of light guide holes 210 are also arranged in a matrix, and each light guide hole 210 is arranged corresponding to a plurality of pixel holes 110. It should be noted that the light guide plate 200 is made of an opaque material, and light can only pass through the light guide holes 210. Figure 5 and Figure 6 As shown, the corresponding arrangement of one light guide hole 210 and multiple pixel holes 110 can be understood as follows: along the front-to-back direction, the projection of the light guide hole 210 can cover multiple pixel holes 110, that is, the front side of the light guide hole 210 has multiple pixel holes 110. Based on this, the light passing through the light guide hole 210 can be transmitted to the multiple pixel holes 110 corresponding thereto.

[0044] In the embodiment of the utility model, a plurality of light sources (not shown in the figure) are arranged on the rear side of the light guide plate 200, and the plurality of light sources are arranged one-to-one corresponding to the plurality of light guide holes 210. In the embodiment, the number of light sources can be consistent with the number of light guide holes 210, and the light sources are arranged one-to-one corresponding to the rear side of the light guide holes 210 to emit light to the light guide holes 210. A light source corresponds to one light guide hole 210, that is, a light source corresponds to a plurality of pixel holes 110 corresponding to the light guide hole 210, and therefore, each light source can emit light toward the plurality of pixel holes 110 corresponding to the light guide hole 210. It can be understood that one light source in the embodiment can make a plurality of pixel holes 110 emit light, and therefore, the embodiment reduces the use of light sources relative to the solution in the prior art that one light source corresponds to one pixel hole 110. It should be noted that in the embodiment, the light source can be an LED lamp, or a xenon lamp bead, or other types of light-emitting lamps, and those skilled in the art can select and set it according to actual conditions, and the embodiment does not limit this.

[0045] The embodiment of the utility model sets a pixel board 100, and a plurality of pixel holes 110 in the pixel board 100 are arranged in a matrix, thereby realizing matrix lighting and pixel display; and sets a light guide plate 200 between the light source and the pixel board 100, wherein the light guide plate 200 is provided with a plurality of light guide holes 210, each light guide hole 210 is arranged corresponding to a plurality of pixel holes 110, and a plurality of light sources are arranged one-to-one corresponding to the plurality of light guide holes 210, so that each light source can emit light toward the plurality of pixel holes 110 corresponding to the light guide hole 210, that is, each light source can make the plurality of pixel holes 110 emit light, thereby realizing a reduction in the use of light sources, effectively avoiding the serious heating problem caused by a large number of light sources being densely arranged inside the pixelated lighting device 10, not only reducing the heat dissipation difficulty of the pixelated lighting device 10, but also simplifying the maintenance process, thereby reducing the risk of failure of the pixelated lighting device 10, extending its service life, and reducing the manufacturing cost of the pixelated lighting device 10, and being suitable for a vehicle lamp assembly, which can reduce the manufacturing cost of the vehicle lamp and reduce the heating of the vehicle lamp.

[0046] Reference Figure 4 and Figure 6As shown, in the embodiment of the utility model, the light guide hole 210 is a square hole. The design of the square hole allows the light to be more evenly dispersed in all directions when propagating in the light guide hole 210, so that the amount of light received by the multiple pixel holes 110 corresponding to the light guide hole 210 is similar, thereby making the light emission of each pixel hole 110 uniform. In this embodiment, along the front-to-back direction, each corner of the projection of the light guide hole 210 covers at least one pixel hole 110, ensuring that each pixel hole 110 can receive sufficient and uniform light, thereby achieving a more uniform and consistent light emission effect for each pixel hole 110, and at the same time, reducing the light waste in the light guide hole 210 and improving the light utilization rate. In one example, referring to Figure 6 As shown, along the front-to-back direction, the projection of the light guide hole 210 covers four pixel holes 110. In another example, along the front-to-back direction, the projection of the light guide hole 210 covers six pixel holes 110, wherein four pixel holes 110 are located in front of the corners of the light guide hole 210, and two pixel holes 110 are located in front of the middle of the light guide hole 210.

[0047] Reference Figure 2 As shown, in the embodiment of the utility model, the pixelated lighting device 10 further includes a circuit board 300, which is disposed on the rear side of the light guide plate 200, and a plurality of light sources are evenly arranged in the circuit board 300. In one example, the circuit board 300 adopts an integrated plate structure to ensure overall stability and compactness; in another example, the circuit board 300 adopts a segmented structure, and the circuit board 300 can be composed of multiple sections of plate members connected together, so that the circuit board 300 can present an arc-shaped curved structure, and correspondingly, the light guide plate 200 can also be a segmented structure composed of multiple sections of plate members connected together, so that the pixelated lighting device 10 can adapt to the shape design requirements of vehicle lamp assemblies of different shapes, thereby improving the flexibility and universality of the pixelated lighting device 10.

[0048] In the embodiment of the utility model, the circuit board 300 and the light guide plate 200 are fixedly connected by fasteners. Specifically, the circuit board 300 and the light guide plate 200 are respectively provided with holes. In one example, the fastener is a screw, and the light guide plate 200 is provided with a screw hole connected to the hole of the circuit board 300. Based on this, the fastener can be inserted into the hole of the circuit board 300 and cooperate with the screw hole of the light guide plate 200 to achieve a fastened connection in a threaded connection. It should be noted that the fastener is not limited to a screw, but can also be a rivet. The light guide plate 200 is provided with a rivet hole connected to the hole of the circuit board 300. Based on this, the fastener can be inserted into the hole of the circuit board 300 and cooperate with the rivet hole of the light guide plate 200 to achieve a fastened connection in a riveted manner. It should be noted that the fastener and the hole positions of the circuit board 300 and the light guide plate 200 can be selected and set according to actual conditions, and this embodiment does not limit this.

[0049] Reference Figure 1 and Figure 2 As shown, in the embodiment of the utility model, the pixelated lighting device 10 further includes a housing 400, and the housing 400 is provided with an installation cavity 410. The size of the installation cavity 410 is slightly larger than the circuit board 300, the light guide plate 200 and the pixel plate 100. Based on this, the circuit board 300, the light guide plate 200 and the pixel plate 100 are sequentially arranged in the installation cavity 410, and are respectively connected to the housing 400 by fasteners. It can be understood that the housing 400 can provide protection for the circuit board 300, the light guide plate 200 and the pixel plate 100, effectively preventing external factors from infringing on the circuit board 300, the light guide plate 200 and the pixel plate 100, and ensuring the stability and reliability of the pixelated lighting device 10. In this embodiment, during assembly, the circuit board 300 and the light guide plate 200 can be connected first, and then the two can be placed in the installation cavity 410 as a whole, and then the pixel plate 100 can be placed, so as to realize the assembly of the pixelated lighting device 10.

[0050] Reference Figure 1 and Figure 2 As shown, in the embodiment of the utility model, the pixelated lighting device 10 further includes a light distribution member 500, which is disposed on the front side of the pixel board 100 and bonded to the housing 400. In this embodiment, during assembly, after the circuit board 300, the light guide plate 200 and the pixel board 100 are placed in the installation cavity 410, the light distribution member 500 can be bonded to the front end of the housing 400 by hot melt adhesive, so that the installation cavity 410 forms a closed space. The light distribution member 500 not only optimizes the light distribution and prevents the generation of glare, but also plays a role in protecting the circuit board 300, the light guide plate 200 and the pixel board 100 in the installation cavity 410.

[0051] Reference Figure 1 and Figure 2 As shown, in the embodiment of the utility model, the pixelated lighting device 10 also includes a diffusion plate 600, which is arranged between the pixel plate 100 and the light guide plate 200. The light emitted by the light source passes through the light guide hole 210 in the light guide plate 200, passes through the diffusion plate 600, and is then transmitted to the pixel hole 110 in the pixel plate 100. In this process, the diffusion plate 600 can play a role in evenly diffusing the light.

[0052] In this embodiment, the diffuser plate 600 is fixedly connected to the light guide plate 200 by a fastener. Specifically, the diffuser plate 600 and the light guide plate 200 are respectively provided with holes. In one example, the fastener is a screw, and the light guide plate 200 is provided with a screw hole connected to the hole of the diffuser plate 600. Based on this, the fastener can be inserted into the hole of the diffuser plate 600 and cooperate with the screw hole of the light guide plate 200 to achieve a fastened connection in a threaded connection. It should be noted that the fastener is not limited to a screw, but can also be a rivet. The light guide plate 200 is provided with a rivet hole connected to the hole of the diffuser plate 600. Based on this, the fastener can be inserted into the hole of the diffuser plate 600 and cooperate with the rivet hole of the light guide plate 200 to achieve a fastened connection in a riveted manner. It should be noted that the fastener and the hole positions of the diffuser plate 600 and the light guide plate 200 can be selected and set according to actual conditions, and this embodiment does not limit this.

[0053] The embodiment of the present utility model further provides a vehicle lamp assembly, comprising the pixelated lighting device 10 of the above embodiment. Specifically, in the embodiment, the vehicle lamp assembly can be a headlamp or a rear lamp, which is not limited in the embodiment.

[0054] The vehicle lamp assembly of the present embodiment optimizes the structure of the pixelated lighting device 10 by arranging a light guide plate 200 between the light source and the pixel plate 100, wherein the light guide plate 200 is provided with a plurality of light guide holes 210, each light guide hole 210 is arranged corresponding to a plurality of pixel holes 110, and a plurality of light sources are arranged one-to-one corresponding to the plurality of light guide holes 210, so that each light source can emit light toward the plurality of pixel holes 110 corresponding to the light guide hole 210, that is, each light source can make the plurality of pixel holes 110 emit light, thereby achieving a reduction in the use of light sources, and effectively avoiding the problem of severe heating of the vehicle lamp assembly caused by a large number of light sources densely arranged inside the pixelated lighting device 10, which not only reduces the heat dissipation difficulty of the vehicle lamp assembly, but also simplifies its maintenance process, thereby reducing the risk of failure of the vehicle lamp assembly, extending its service life, and reducing the manufacturing cost of the vehicle lamp assembly.

[0055] Since the vehicle lamp assembly adopts all the technical solutions of the pixelated lighting device 10 of the above embodiment, it has at least all the beneficial effects brought by the technical solutions of the above embodiment, which will not be described in detail here.

[0056] An embodiment of the utility model further provides a vehicle, comprising the vehicle lamp assembly of the above embodiment.

[0057] In the embodiment of the utility model, the vehicle lamp assembly can be installed at the front end of the vehicle as the vehicle's headlight, or installed at the rear end of the vehicle as the vehicle's taillight, which is not limited in this embodiment. In this embodiment, the vehicle can be a private car, such as a sedan, SUV, MPV or pickup truck. The vehicle can also be an operating vehicle, such as a van, bus, small truck or large trailer. The vehicle can be a gasoline vehicle or a new energy vehicle. When the vehicle is a new energy vehicle, it can be a hybrid vehicle or a pure electric vehicle.

[0058] The vehicle headlight assembly of the present embodiment has been structurally optimized to achieve a reduction in the use of light sources, effectively avoiding the problem of severe heating of the headlight assembly caused by a large number of light sources densely distributed inside the pixelated lighting device 10. It not only reduces the heat dissipation difficulty of the headlight assembly, but also simplifies its maintenance process, thereby reducing the risk of vehicle failure and reducing the manufacturing cost of the vehicle.

[0059] Since the vehicle adopts all the technical solutions of the headlight assembly of the above embodiment, it has at least all the beneficial effects brought by the technical solutions of the above embodiment, which will not be repeated here.

[0060] The embodiments of the utility model are described in detail above in conjunction with the accompanying drawings. Finally, it should be explained that the above embodiments are only used to illustrate the technical solution of the utility model, rather than to limit it. Although the utility model is described in detail with reference to the aforementioned embodiments, ordinary technicians in this field should understand that they can still modify the technical solutions recorded in the aforementioned embodiments, or replace some or all of the technical features therein with equivalents. However, these modifications or replacements do not make the essence of the corresponding technical solutions deviate from the scope of the technical solutions of the embodiments of the utility model.

Claims

1. A pixelated lighting device, characterized in that: include: A pixel plate, provided with a plurality of pixel holes, wherein the plurality of pixel holes are arranged in a matrix; A light guide plate, disposed at the rear side of the pixel plate, the light guide plate being provided with a plurality of light guide holes, each of the light guide holes being arranged corresponding to the plurality of pixel holes; A plurality of light sources are arranged at the rear side of the light guide plate, and the plurality of light sources are arranged in one-to-one correspondence with the plurality of light guide holes, so that each of the light sources can emit light toward the plurality of pixel holes corresponding to the light guide hole.

2. The pixelated lighting device according to claim 1, characterized in that The light guide hole is a square hole, and along the front-to-back direction, each corner of the projection of the light guide hole covers at least one pixel hole.

3. The pixelated lighting device according to claim 1, characterized in that The pixelated lighting device further comprises a circuit board, which is arranged at the rear side of the light guide plate, and the plurality of light sources are evenly arranged in the circuit board.

4. The pixelated lighting device according to claim 3, characterized in that: The circuit board and the light guide plate are fixedly connected via fasteners.

5. The pixelated lighting device according to claim 4, characterized in that The pixelated lighting device further comprises a housing, wherein the housing is provided with an installation cavity, wherein the circuit board, the light guide plate and the pixel plate are sequentially arranged in the installation cavity and are respectively connected to the housing via fasteners.

6. The pixelated lighting device according to claim 5, characterized in that The pixelated lighting device further includes a light distribution component, which is disposed on the front side of the pixel plate and bonded to the housing.

7. The pixelated lighting device according to claim 5, characterized in that The pixelated lighting device further includes a diffusion plate, which is disposed between the pixel plate and the light guide plate, and is fixedly connected to the light guide plate via a fastener.

8. The pixelated lighting device according to claim 2, characterized in that Along the front-to-back direction, the projection of the light guide hole covers the four pixel holes.

9. A vehicle lamp assembly, characterized in that: Comprising a pixelated lighting device as claimed in any one of claims 1 to 8.

10. A vehicle, characterized in that: Comprising the vehicle lamp assembly as claimed in claim 9.

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