Vehicle interior and exterior decorative components, light system apparatus, and optical module and optical control method thereof

Abstract

The present application relates to the technical field of vehicle-mounted lamps, and provides vehicle interior and exterior decorative components, a light system apparatus, and an optical module and an optical control method thereof. The light system apparatus comprises: an optical module, wherein the optical module comprises at least one light source, light blocking components located on two sides of the light source, and a light output component located in the light-emitting direction of the light source; and a cover plate, wherein the cover plate is used for the optical module to emit light, the cover plate comprises a substrate, a primer layer, a colored paint layer, and a transparent paint layer that are sequentially stacked, the substrate is located between the primer layer and the optical module, multiple first light-transmitting holes are formed in the primer layer, multiple second light-transmitting holes are formed in the colored paint layer, at least some of the second light-transmitting holes are communicated with at least some of the first light-transmitting holes, and the second light-transmitting holes and the first light-transmitting holes correspondingly communicated with each other together form light-transmitting hole positions. According to the light system apparatus, the color of the light emitted by the optical module does not change along with the original color of the cover plate, thereby achieving the rich and changeable display effects of the light system apparatus.

Description

Vehicle interior and exterior decoration and lighting system device, optical module and optical control method thereof Technical Field

[0001] The present application relates to the technical field of vehicle-mounted lamps, and in particular to a vehicle interior and exterior decoration and lighting system device, an optical module and an optical control method thereof. Background Art

[0002] Lighting systems can be integrated with exterior components such as bumpers, grilles, and door panels. Global automotive trends toward electrification and intelligentization are accelerating, and automotive styling is embracing this trend: front grilles are becoming enclosed or eliminated altogether, and lamps are becoming narrower and longer. While smart electric vehicles demand a more ambient lighting experience and Car2X interaction, these trends are also driving a reduction in available lighting area, creating a conflict.

[0003] Existing lighting systems operate by transmitting light through a layer of translucent paint, semi-transparent material, or ink. The light changes depending on the original color of the medium. For example, if the translucent paint is red, white light passing through the paint will appear red, preventing the creation of rich and varied display effects.

[0004] Application Contents

[0005] The purpose of this application is to address the deficiencies in the above-mentioned prior art and provide a vehicle interior and exterior decoration and lighting system device, an optical module and an optical control method thereof, which can improve the color of the light emitted by the optical module so that it changes with the original color of the cover, thereby solving the problem of a single display effect.

[0006] To achieve the above objectives, the technical solutions adopted in the embodiments of the present application are as follows:

[0007] One aspect of an embodiment of the present application provides a lighting system device, comprising: an optical module including at least one light source, light-blocking components disposed on either side of the light source, and a light-emitting component located in the light-emitting direction of the light source; a cover plate for emitting light from the optical module, the cover plate comprising a substrate, a primer layer, a color paint layer, and a transparent paint layer stacked in sequence; the substrate being positioned between the primer layer and the optical module, the primer layer being provided with a plurality of first light-transmitting holes, the color paint layer being provided with a plurality of second light-transmitting holes, at least some of the second light-transmitting holes being connected to at least some of the first light-transmitting holes, and the correspondingly connected first and second light-transmitting holes together forming light-transmitting hole positions. This lighting system device can improve the problem of light emitted from the optical module, where the color of the light changes with the original color of the cover plate, resulting in a monotonous display effect.

[0008] Optionally, the first light-transmitting hole and the second light-transmitting hole have the same shape and size.

[0009] Optionally, when the cross section of the light-transmitting hole is circular, the ratio of the aperture of the light-transmitting hole to the center distance between two adjacent light-transmitting holes is less than or equal to 0.2;

[0010] And / or, the area of ​​the plurality of light-transmitting holes on the cover plate accounts for less than or equal to 3.14%.

[0011] Optionally, the opening shape of the light-isolating component is the same as the cross-sectional shape of the light-transmitting hole;

[0012] Alternatively, the projection of the opening of the light-isolating component covers the projection of the light-transmitting hole.

[0013] Optionally, the ratio range of the aperture of the light-transmitting hole and the center distance between two adjacent light-transmitting holes is determined according to the brightness of the color paint layer of the cover plate; and / or, the area ratio range of multiple light-transmitting holes on the cover plate is determined according to the brightness of the color paint layer of the cover plate.

[0014] Optionally, the ratio of the aperture of the light-transmitting hole to the center distance between two adjacent light-transmitting holes satisfies the following formula:

[0015] Wherein, D is the aperture, L is the center distance between two adjacent light-transmitting holes, V is the brightness of the paint layer of the cover plate, a is a constant greater than 0 and less than 1, and the value of a is determined according to the type of the paint layer of the cover plate.

[0016] Optionally, the area ratio S of the plurality of light-transmitting holes on the cover plate satisfies the following formula: S≤b*V 2 -c*V+d;

[0017] Among them, V is the brightness of the paint layer of the cover plate, b is greater than 7*10 -5 And less than 9*10 -5 b is a constant, c is a constant greater than 0 and less than 0.1, d is a constant greater than 5 and less than 15, and the values ​​of b, c and d are determined according to the type of the color paint layer of the cover plate.

[0018] Optionally, the light isolation component extends toward the light emitting direction of the light source, adjacent light sources are isolated by the light isolation component, the light emitting component covers the gaps between multiple light sources and multiple light isolation components, and the light emitted by the light source is emitted to the cover through the light emitting component.

[0019] Another aspect of the present application provides an optical module comprising multiple light sources, light-isolating components disposed on both sides of each light source, and a light-emitting component located in the light-emitting direction of the light source. The light-isolating components extend in the light-emitting direction of the light source, and adjacent light sources are isolated by the light-isolating components to prevent light interference. The light-emitting component covers the gaps between the multiple light sources and the multiple light-isolating components, and light emitted by the light sources is emitted after passing through the light-emitting components. This optical module can improve the problem of the prior art in which display quality and cost cannot be balanced.

[0020] Optionally, the optical module further includes a circuit board, the material of the light-isolating component and the light-emitting component at least includes silicone, and the light-isolating component and the light-emitting component are sequentially formed on the circuit board.

[0021] Optionally, the light-isolating component is injection-molded on the circuit board.

[0022] Optionally, the light emitting component is filled between the light isolating components by injection molding or dispensing, and covers the light source and the light isolating components.

[0023] Optionally, a bottom dimension of the light-isolating component close to the light source is larger than a top dimension of the light-isolating component away from the light source, so that the light-isolating component forms a trapezoidal column structure.

[0024] Optionally, the distance between the optical center axes of two adjacent light sources is between 4 mm and 10 mm;

[0025] And / or, the distance between the top ends of two adjacent light-isolating components is between 2.5 mm and 15 mm.

[0026] Another aspect of the present application provides an optical control method for an optical module. The optical control method for an optical module is applied to the above-mentioned optical module, and the optical control method includes:

[0027] When the ambient illumination is less than the preset illumination, the driving currents of the plurality of light sources are controlled to light up respectively at their respective predetermined driving currents;

[0028] When the ambient illumination is greater than or equal to the preset illumination, the driving current of some light sources is reduced and the driving current of the remaining light sources is increased.

[0029] Optionally, when the ambient illumination is greater than or equal to a preset illumination, reducing the driving current of the light source further includes:

[0030] reducing the driving current of some of the light sources to 0;

[0031] and / or, increasing the driving current of the remaining light sources.

[0032] Optionally, the increase in the driving current of the remaining light sources is positively correlated with the decrease in the driving current of some of the light sources.

[0033] Optionally, the driving current I of the light source i among the remaining light sources ix Calculated according to the following formula: ix =ΔI x +I i max ;

[0034] Among them, ΔI x ​is the average increase in the driving current of the remaining light sources, I i is the predetermined driving current of light source i, I max is the maximum driving current, and the average increase value ΔI of the driving current of the remaining light sources x Calculate according to the following formula: ΔI x =(Δ1, Δ2, ... Δ m ) / (nm);

[0035] Where n is the total number of light sources, m is the number of light sources with reduced driving current, Δ1, Δ2, ... Δ m are respectively the reduction amounts of the predetermined driving current of each of the m light sources.

[0036] According to another aspect of the present application, a vehicle exterior is provided, comprising the above lighting system device.

[0037] According to another aspect of the present application, a vehicle interior is provided, comprising the above lighting system device.

[0038] The beneficial effects of this application include:

[0039] The present application provides a vehicle interior and exterior decoration and lighting system device, an optical module and an optical control method thereof. The lighting system device includes an optical module and a cover plate. The optical module includes at least one light source, and light-isolating components arranged on both sides of the light source and a light-emitting component located in the light-emitting direction of the light source; the cover plate is used for light output by the optical module, and the cover plate includes a substrate, a primer layer, a color paint layer and a transparent paint layer stacked in sequence; the substrate is located between the primer layer and the optical module, and a plurality of first light-transmitting holes are provided on the primer layer, and a plurality of second light-transmitting holes are provided on the color paint layer, at least some of the second light-transmitting holes are connected to at least some of the first light-transmitting holes, and the correspondingly connected first light-transmitting holes and second light-transmitting holes together form light-transmitting hole positions. Therefore, the present application uses a substrate, a primer layer, a color paint layer and a transparent paint layer stacked in sequence so that when the optical module emits light, the light emitted by the optical module displays the color of the optical module itself through the first light-transmitting hole and the second light-transmitting hole without being affected by the primer layer and the color paint layer. When the optical module does not emit light, due to the size distribution of the first light-transmitting hole and the second light-transmitting hole, the transmittance of the first light-transmitting hole and the second light-transmitting hole is low, so that the cover plate can display the color of its own color paint layer as a whole, and its appearance is almost the same as the appearance without the first light-transmitting hole and the second light-transmitting hole, thereby hiding the optical module behind the cover plate.

[0040] The present application also provides an optical module, including multiple light sources, and light-isolating components arranged on both sides of each light source and a light-emitting component located in the light-emitting direction of the light source, the light-isolating components extending toward the light-emitting direction of the light source, adjacent light sources are isolated by the light-isolating components to avoid light interference, the light-emitting component covers the gaps between the multiple light sources and the multiple light-isolating components, and the light emitted by the light source is emitted after passing through the light-emitting component. The present application can effectively block the light interference of adjacent light sources by arranging light-isolating components on both sides of the light source, and after the light source emits light, the light is emitted through the light-emitting component, and the light-emitting component surrounds and covers the light source, so that the light emitted by the light source can enter the light-emitting component to the maximum extent and be output by the light-emitting component, effectively improving the light efficiency, increasing the brightness of a single display pixel, and improving the display effect. In addition, silicone or similar soft light-isolating components and light-emitting components can be directly injection-molded onto the circuit board, reducing the installation structure of traditional plastic parts, which is conducive to reducing the space of the optical module and simplifying the assembly process. The minimum thickness of this optical module can be 5mm to 6mm; under the premise of ensuring the uniformity of lighting, the center spacing of pixels can be reduced to a minimum of 3mm to 4mm, making the pixel density higher than that of existing interactive signal lights, improving the display resolution, but lower than the pixel density of miniLED display screens, so the cost is relatively acceptable; LED light sources are preferably side-emitting, which can reduce the height of the light-isolating components to a minimum of 3mm to 4mm, while achieving a high pixel fill rate, thereby reducing the space requirements of the entire interactive signal light. The lighting system device provided in this application can also achieve high-brightness and uniform lighting of low-power light sources. BRIEF DESCRIPTION OF THE DRAWINGS

[0041] In order to more clearly illustrate the technical solutions of the embodiments of the present application, the following is a brief introduction to the drawings required for use in the embodiments. It should be understood that the following drawings only show certain embodiments of the present application and therefore should not be regarded as limiting the scope. For ordinary technicians in this field, other relevant drawings can be obtained based on these drawings without creative work.

[0042] FIG1 is a schematic diagram of a structure of a lighting system device according to an embodiment of the present application;

[0043] FIG2 is a second structural diagram of a lighting system device provided in an embodiment of the present application;

[0044] FIG3 is a schematic diagram of an arrangement of light-transmitting holes provided in an embodiment of the present application when the aperture is 40 μm and the center distance between two adjacent light-transmitting holes is L=200 μm;

[0045] FIG4 is a schematic diagram of an arrangement of light-transmitting holes provided in an embodiment of the present application when the aperture is 20 μm and the center distance between two adjacent light-transmitting holes is L=200 μm;

[0046] FIG5 is a schematic diagram of an arrangement of light-transmitting holes provided in an embodiment of the present application when the aperture is 20 μm and the center distance between two adjacent light-transmitting holes is L=100 μm;

[0047] FIG6 is a schematic diagram of an arrangement of light-transmitting holes provided in an embodiment of the present application when the aperture is 10 μm and the center distance between two adjacent light-transmitting holes is L=100 μm;

[0048] FIG7 is a schematic diagram of one arrangement mode of the light-transmitting holes provided in an embodiment of the present application when the light-transmitting holes are square and the center distance between two adjacent light-transmitting holes is L=200 μm;

[0049] FIG8 is a second schematic diagram of an arrangement of square light-transmitting holes provided in an embodiment of the present application, where the center distance between two adjacent light-transmitting holes is L=200 μm;

[0050] FIG9 is a schematic diagram showing one arrangement mode of light-transmitting holes provided in an embodiment of the present application when the center distance between two adjacent light-transmitting holes is L=100 μm when the light-transmitting holes are arranged in a non-array manner;

[0051] FIG10 is a second schematic diagram of an arrangement of light-transmitting holes provided in an embodiment of the present application when the light-transmitting holes are arranged in a non-array manner and the center distance between two adjacent light-transmitting holes is L=100 μm;

[0052] FIG11 is a schematic structural diagram of an optical module provided in an embodiment of the present application;

[0053] FIG12 is a diagram showing one of the optical module preparation process according to an embodiment of the present application;

[0054] FIG13 is a second diagram of the optical module preparation process provided in an embodiment of the present application.

[0055] Icon: 1-circuit board; 2-light source; 3-light-isolating component; 4-light-emitting component; 4-1-substrate; 4-2-primer layer; 4-2-1-first light-transmitting hole; 4-3-color paint layer; 4-3-1-second light-transmitting hole; 4-4-transparent paint layer; 45-light-transmitting hole position. DETAILED DESCRIPTION

[0056] This application provides a lighting system device (non-traditional lighting fixture) that can illuminate the grille, bumper, exterior door panel lighting area, or other vehicle locations (such as interior lighting, ambient lighting, etc.). This device caters to styling requirements while achieving exterior lighting display, while also being unaffected by the color of the cover itself. The specific structure of the new lighting system device provided by this application will be described in detail below.

[0057] Please refer to Figures 1 and 2. One aspect of an embodiment of the present application provides a lighting system device, which includes an optical module and a cover plate, wherein the optical module includes at least a light source 2, and a light-isolating component 3 arranged on both sides of the light source 2 and a light-emitting component 4 located in the light-emitting direction of the light source 2; the cover plate is used for light output by the optical module, and the cover plate includes a substrate 4-1, a primer layer 4-2, a color paint layer 4-3 and a transparent paint layer 4-4 stacked in sequence; the substrate 4-1 is located between the primer layer 4-2 and the optical component 5, and a plurality of first light-transmitting holes 4-2-1 are provided on the primer layer 4-2, and a plurality of second light-transmitting holes 4-3-1 are provided on the color paint layer 4-3, at least some of the second light-transmitting holes 4-3-1 are connected to at least some of the first light-transmitting holes 4-2-1, and the corresponding connected first light-transmitting holes 4-2-1 and second light-transmitting holes 4-3-1 together form a light-transmitting hole position 45.

[0058] The optical module includes at least one light source 2, and light-isolating components 3 provided on both sides of the light source 2 and a light-emitting component 4 located in the light-emitting direction of the light source 2. The light-isolating component 3 extends toward the light-emitting direction of the light source 2. When the optical module includes multiple light sources 2, adjacent light sources 2 are isolated by the light-isolating components 3 to avoid light interference. The light-emitting component 4 covers the gaps between the multiple light sources 2 and the multiple light-isolating components 3. The light emitted by the light source 2 is emitted after passing through the light-emitting component 4. The present application can effectively block the light interference of adjacent light sources 2 by providing light-isolating components 3 on both sides of the light source 2. After the light source 2 emits light, the light is emitted through the light-emitting component 4. The light-emitting component 4 surrounds and covers the light source 2, so that the light emitted by the light source 2 can enter the light-emitting component 4 to the maximum extent and be output by the light-emitting component 4, thereby effectively improving the light efficiency, increasing the brightness of a single display pixel, and improving the display effect.

[0059] The present application sets a plurality of first light-transmitting holes 4-2-1 on the primer layer 4-2, and sets a plurality of second light-transmitting holes 4-3-1 on the color paint layer 4-3, and makes at least part of the first light-transmitting holes 4-2-1 and the second light-transmitting holes 4-3-1 correspondingly connected, so that the corresponding first light-transmitting holes 4-2-1 and the second light-transmitting holes 4-3-1 can form light-transmitting hole positions 45. In this way, the primer layer 4-2 and the color paint layer 4-3 can have multiple light-transmitting hole positions 45. In this way, the color of the light emitted by the light source 2 will not change with the original color of the above medium, thereby improving the display effect of the pixel display.

[0060] In some embodiments, the first light-transmitting holes 4-2-1 and the second light-transmitting holes 4-3-1 are arranged in a one-to-one correspondence in position. The present application is not limited thereto, and the number of the first light-transmitting holes 4-2-1 and the second light-transmitting holes 4-3-1 can be different.

[0061] In some embodiments, when the optical module includes multiple light sources 2, the multiple light sources 2 are aligned with the light-transmitting hole positions 45 formed by the first light-transmitting hole 4-2-1 and the second light-transmitting hole 4-3-1. However, the present application is not limited to this, and the multiple light sources 2 may also be staggered with the light-transmitting hole positions 45 formed by the first light-transmitting hole 4-2-1 and the second light-transmitting hole 4-3-1.

[0062] In some embodiments, when the optical module has multiple light sources 2, the light sources 2 of the optical module can be individually controlled to display different pixel patterns through the first light-transmitting hole 4-2-1 and the second light-transmitting hole 4-3-1. However, the present application is not limited to this, and the light sources 2 of the optical module can also be controlled uniformly.

[0063] Optionally, the first light-transmitting hole 4-2-1 and the second light-transmitting hole 4-3-1 are both formed by laser technology.

[0064] Optionally, in order to maintain the appearance of the cover plate and prevent the light-transmitting hole 45 from being visible, the aperture of the light-transmitting hole 45 may be between 10 μm and 400 μm.

[0065] Optionally, in order to maintain the appearance of the cover plate and prevent the light-transmitting holes 45 from being visible, the center distance between adjacent light-transmitting holes 45 may be between 100 um and 1000 um.

[0066] The laser process makes the cover plate transparent at the punched areas through punching. The larger the area ratio of the holes per unit area, the higher the transmittance, and the easier it is to identify the holes in the static appearance. Conversely, the smaller the area ratio of the holes per unit area, the lower the transmittance, and the holes are not easy to identify in the static appearance, which can be consistent with the non-punched areas.

[0067] Optionally, the first light-transmitting hole 4-2-1 and the second light-transmitting hole 4-3-1 have the same shape and size, and the corresponding first light-transmitting hole 4-2-1 and the second light-transmitting hole 4-3-1 together form a light-transmitting hole position 45.

[0068] According to research, when the aperture of the light-transmitting hole 45 and the center distance between two adjacent light-transmitting holes 45 have a certain numerical relationship, the transmittance and the static pinhole visibility are in a balanced state.

[0069] Referring to Figure 3 , when the ratio of the aperture of a light-transmitting hole 45 to the center-to-center distance between two adjacent light-transmitting holes 45 is greater than 0.2, the cover plate has a high transmittance, and the light-transmitting holes 45 can be clearly identified during daytime. However, the light-transmitting holes 45 are clearly visible from a static appearance, resulting in a poor appearance. In Figure 3 , the aperture of the light-transmitting hole 45 is 40 μm, the center-to-center distance between two adjacent light-transmitting holes 45 (hereinafter referred to as the center distance) is L = 200 μm, and D / L = 0.2. Therefore, in some preferred embodiments, the ratio of the aperture of the light-transmitting hole 45 to the center-to-center distance between two adjacent light-transmitting holes 45 can be less than or equal to 0.2 to avoid the situation where the light-transmitting holes 45 are clearly visible from a static appearance.

[0070] Referring to Figure 4 , optionally, the ratio of the aperture of light-transmitting hole 45 to the center-to-center distance between two adjacent light-transmitting holes 45 is less than 0.1. In this case, the cover plate's transmittance is low, and light-transmitting holes 45 are only visible at night. They are invisible during static viewing, resulting in an excellent static appearance. In Figure 6 , the aperture of light-transmitting hole 45 is 20 μm, the center-to-center distance L = 200 μm, and D / L = 0.1.

[0071] As shown in Figures 5 and 6, when the center distance changes from 200 μm to 100 μm, maintaining the numerical relationship between the aperture diameter and the center distance of light-transmitting aperture 45 can achieve equivalent transmittance and static appearance. In Figure 5, the aperture diameter of light-transmitting aperture 45 is 20 μm, and the center distance L = 100 μm; in Figure 6, the aperture diameter of light-transmitting aperture 45 is 10 μm, and the center distance L = 100 μm.

[0072] Please refer to Figures 7 and 8. The above-mentioned light-transmitting hole 45 is not limited to a circle. It can also be a square, a triangle or any other shape. The non-circular hole area of ​​the light-transmitting hole 45 and the area of ​​the area surrounded by the center distance are maintained to be consistent with the light-transmitting hole 45 in the circular hole state, and equivalent transmittance and static appearance can be achieved.

[0073] 9 and 10 , the arrangement of the plurality of light-transmitting holes 45 is not limited to a regular matrix arrangement, and may also be an irregular arrangement.

[0074] In some embodiments of the present application, the regular or irregular arrangement of multiple light-transmitting apertures 45 can enable the multiple light-transmitting apertures 45 to display pixelated graphics and animations. The shape of the light-transmitting apertures 45 can be coordinated with the arrangement to improve the playback effect of the pixelated graphics and animations. In some embodiments, the light-transmitting apertures 45 can be, for example, triangular, and the multiple light-transmitting apertures 45 can be arranged in the form of a parallelogram, with two sides of the parallelogram being parallel to two sides of the triangle of the light-transmitting aperture 45, respectively, so as to be able to present corresponding rows and columns of pixels. At the same time, because the rows and columns of pixels are not perpendicular, the pixels of adjacent rows or adjacent columns are staggered to improve the display continuity of the oblique lines in the graphics and increase the interest of the animation display. Furthermore, the triangular shapes of adjacent light-transmitting apertures 45 can be inverted, that is, arranged in a manner such that one adjacent light-transmitting aperture 45 is an equilateral triangle and the other adjacent light-transmitting aperture 45 is an inverted triangle, further reducing the jagged display of the oblique lines in the graphics and improving the playback effect of the pixelated graphics and animations. In some variations, the shapes of the light-transmitting holes 45 may also be different.

[0075] In some embodiments of the present application, each light-transmitting hole 45 can also be composed of multiple adjacent light-transmitting sub-holes, thereby increasing the light-transmitting area of ​​each light-transmitting hole 45. However, since the size of the light-transmitting sub-holes is small, the transmittance of each light-transmitting sub-hole is small, thereby reducing the visibility of the light-transmitting hole 45 when the optical module is not emitting light.

[0076] In some embodiments of the present application, each light-transmitting hole 45 can also be composed of multiple adjacent light-transmitting sub-holes, thereby increasing the light-transmitting area of ​​each light-transmitting hole 45. However, since the size of the light-transmitting sub-holes is small, the transmittance of each light-transmitting sub-hole is small, thereby reducing the visibility of the light-transmitting hole 45 when the optical module is not emitting light.

[0077] Furthermore, the relationship between the aperture, center distance, shape of the light-transmitting holes 45 and the arrangement of multiple light-transmitting holes 45 and the static appearance / transmittance can be further summarized as the ratio of the cover area occupied by the light-transmitting holes 45 per unit area.

[0078] The cover plate has light-transmitting holes 45 of various shapes arranged in a predetermined pattern and evenly distributed. The relationship between the area occupied by the light-transmitting holes 45 per unit area (hole area / area occupied by hole distribution) and the static appearance / transmittance is as follows:

[0079] The first case: the area of ​​the multiple light-transmitting holes 45 on the cover plate is less than or equal to 0.79% (that is, the area of ​​the light-transmitting holes 45 per unit area is ≤ 0.79%). At this time, the transmittance can only be identified at night, and the light-transmitting holes 45 cannot be observed from the static appearance. The static appearance is fastened.

[0080] The second situation: the area of ​​the multiple light-transmitting holes 45 on the cover plate accounts for greater than or equal to 3.14% (that is, the area of ​​the light-transmitting holes 45 per unit area is ≥3.14%). At this time, the transmittance can be clearly identified during the day, and the light-transmitting holes 45 can be clearly observed in the static appearance, and the appearance effect is not perfect.

[0081] The third case: the area of ​​the plurality of light-transmitting holes 45 on the cover plate accounts for between 0.79% and 3.14% (i.e., the area of ​​the light-transmitting holes 45 per unit area is between 0.79% and 3.14%). In this case, the transmittance and the static appearance are between the above two cases.

[0082] In addition, in actual implementation, the color paint layer 4-3 can be divided into ordinary paint, pearlescent paint and metallic paint based on its texture. Among them, metallic paint has a better effect on shielding micropores than ordinary paint and pearlescent paint due to its higher reflectivity to ambient light.

[0083] Color paint, such as car body paint color, can be defined by the HSV (Hue, Saturation, Value) system. The values ​​of H and S can be customized. The higher the value of V (Value), the lower the value of D / L (the ratio of the aperture D of the light-transmitting hole 45 to the center distance L between two adjacent light-transmitting holes 45) to ensure the invisibility of the micropores.

[0084] In this embodiment, the numerical relationship between the ratio of the aperture of the light-transmitting hole 45 to the center distance L between two adjacent light-transmitting holes 45 and the texture and color brightness of different paint surfaces is as follows:

[0085] The ratio of the aperture of the light-transmitting hole 45 to the center distance between two adjacent light-transmitting holes satisfies the following formula:

[0086] Among them, D is the aperture, L is the center distance between two adjacent light-transmitting holes, V is the brightness of the color paint layer 4-3 of the cover plate, a is a constant greater than 0 and less than 1, and the value of a is determined according to the type of the color paint layer 4-3 of the cover plate.

[0087] For example, when the body paint color of the cover plate is ordinary paint or pearlescent paint, the value of a is 0.3, and the ratio of the aperture of the light-transmitting hole 45 to the center distance between two adjacent light-transmitting holes 45 satisfies the following formula:

[0088] Wherein, D is the aperture of the light-transmitting hole 45, L is the center distance between two adjacent light-transmitting holes 45, and V is the brightness of the color paint layer 4-3 of the cover plate.

[0089] When the body paint color of the cover is metallic paint, the value of a is 0.4, and the ratio of the aperture of the light-transmitting hole 45 to the center distance between two adjacent light-transmitting holes 45 satisfies the following formula:

[0090] Wherein, D is the aperture of the light-transmitting hole 45, L is the center distance between two adjacent light-transmitting holes 45, and V is the brightness of the color paint layer 4-3 of the cover plate.

[0091] The relationship between the aperture, center distance, shape of the light-transmitting holes 45 and the arrangement of the plurality of light-transmitting holes 45 and the brightness of the paint layer can be further summarized as the ratio of the area of ​​the cover occupied by the light-transmitting holes 45 per unit area.

[0092] In this embodiment, the numerical relationship between the area ratio S of the plurality of light-transmitting holes 45 on the cover plate and the different paint surface textures and color brightness is as follows:

[0093] The area ratio S of the plurality of light-transmitting holes 45 on the cover plate satisfies the following formula: S≤b*V 2 -c*V+d;

[0094] Among them, V is the brightness of the color paint layer 4-3 of the cover plate, b is greater than 7*10 -5 And less than 9*10 -5 A constant, c is a constant greater than 0 and less than 0.1, d is a constant greater than 5 and less than 15, and the values ​​of b, c and d are determined according to the type of the color paint layer 4-3 of the cover plate.

[0095] When the color paint layer 4-3 of the cover plate is ordinary paint or pearlescent paint, b can be set to 7.7*10 -5 , c can be set to 0.044, d can be set to 7.044, and the area ratio S of the plurality of light-transmitting holes 45 on the cover plate satisfies the following formula: S≤7.7*10 -5 *V 2 -0.044*V+7.044;

[0096] Wherein, V is the brightness of the color paint layer 4-3 of the cover plate.

[0097] When the color paint layer 4-3 of the cover plate is metallic paint, b can be set to 8.48*10 -5 , c can be set to 0.0645, d can be set to 12.62, and the area ratio S of the plurality of light-transmitting holes 45 on the cover plate satisfies the following formula: S≤8.48*10 -5 *V 2 -0.0645*V+12.62;

[0098] Wherein, V is the brightness of the color paint layer 4-3 of the cover plate.

[0099] The above is merely a schematic illustration of the relationship between the brightness of different color paint layers 4 - 3 and the setting of the light-transmitting holes 45 to ensure that the visibility of the light-transmitting holes 45 is low. The present application is not limited to this.

[0100] Furthermore, in the optical module, the light-isolating component 3 extends toward the light-emitting direction of the light source 2, and adjacent light sources 2 are isolated by the light-isolating component 3 to avoid light-emitting interference. The light-emitting component 4 covers the gaps between multiple light sources 2 and multiple light-isolating components 3, and the light emitted by the light source 2 is emitted after passing through the light-emitting component 4.

[0101] The optical components 5 are the light-isolating component 3 and the light-emitting component 4 . In addition, the lighting system device may further include a circuit board 1 , and a plurality of light sources 2 are electrically connected to the circuit board 1 .

[0102] Furthermore, the light source 2 of the optical assembly is aligned with the first light transmission hole 4-2-1 and the second light transmission hole 4-3-1. In other words, the light source 2 of the optical module is aligned with the light transmission hole 45. That is, the light source 2 of the optical module is arranged in the same arrangement as the light transmission hole 45 so that the light source 2 can transmit light through the light transmission hole 45. In some specific implementations, the optical module and the cover plate may be provided with an alignment structure. When the optical module and the cover plate are connected via the alignment structure, the light source 2 of the optical module is aligned with the light transmission hole 45.

[0103] In some specific implementations, the opening shape of the light-isolating member 3 is the same as the cross-sectional shape of the light-transmitting hole 45. That is, when the light source 2 of the optical assembly is aligned with the first light-transmitting hole 4-2-1 and the second light-transmitting hole 4-3-1, the opening of the light-isolating member 3 can overlap with the light-transmitting hole 45, thereby improving the utilization rate of the light source emitting light from the opening of the light-isolating member 3. In some variations, the projection of the opening of the light-isolating member 3 overlaps the projection of the light-transmitting hole 45. That is, when the light source 2 of the optical assembly is aligned with the first light-transmitting hole 4-2-1 and the second light-transmitting hole 4-3-1, the opening area of ​​the light-isolating member 3 is larger than the opening area of ​​the light-transmitting hole 45, thereby preventing the dark area caused by the light-isolating member 3 from being seen through the light-transmitting hole 45.

[0104] It should be noted that the multiple light sources 2, the multiple light-isolating components 3, the light-emitting components 4 and the circuit board 1 can all be referred to below, and the same parts will not be repeated in this application.

[0105] The present application can effectively block the light interference of adjacent light sources 2 by arranging light-isolating components 3 on both sides of the light source 2. After the light source 2 emits light, the light is emitted through the light-emitting component 4. The light-emitting component 4 surrounds and covers the light source 2, so that the light emitted by the light source 2 can enter the light-emitting component 4 to the maximum extent and be output by the light-emitting component 4, effectively improving the light efficiency, increasing the brightness of a single display pixel, and improving the display effect. In addition, the light-isolating component 3 and the light-emitting component 4 made of silicone or similar soft materials can be directly injection-molded onto the circuit board 1, reducing the installation structure of traditional plastic parts, which is beneficial to reducing the space of the optical module and simplifying the assembly process. The minimum thickness of this optical module can be 5mm to 6mm; under the premise of ensuring the uniformity of lighting, the center spacing of pixels can be reduced to a minimum of 3mm to 4mm, making the pixel density higher than that of existing interactive signal lights, improving the display resolution, but lower than the pixel density of mini LED display screens, so the cost is relatively acceptable; LED light sources are preferably side-emitting, so that the height of the light-isolating component 3 can be reduced to a minimum of 3mm to 4mm, while achieving a high pixel fill rate, thereby reducing the space requirement of the entire interactive signal light. The lighting system device provided in this application can also achieve high-brightness and uniform lighting of the low-power light source 2.

[0106] Another aspect of the present application provides an optical module, as shown in FIG11 . The optical module includes a plurality of light sources 2, light-isolating components 3 disposed on both sides of each light source 2, and a light-emitting component 4 located in the light-emitting direction of the light sources. The light-isolating components 3 extend in the light-emitting direction of the light sources 2, and adjacent light sources 2 are isolated by the light-isolating components 3 to avoid light interference. The light-emitting component 4 covers the gaps between the plurality of light sources 2 and the plurality of light-isolating components 3. Light emitted by the light sources 2 is emitted after passing through the light-emitting component 4. This optical module can improve the problem in the prior art that low-cost, low-power LEDs have difficulty achieving high-brightness and uniform lighting effects.

[0107] The light source 2 may be an LED light source. This application does not limit the type of light source 2. For example, the light source 2 preferably uses a side-emitting LED, thereby effectively reducing the height of the light-isolating component 3. A top-emitting LED may also be used. This application does not limit the arrangement of the above-mentioned multiple light sources 2. The multiple light sources 2 may be arranged in a preset arrangement, which may be a matrix arrangement, a staggered arrangement, or the like.

[0108] Each light source 2 can be independently controlled, meaning the brightness and color of each light source 2 can be individually controlled. This allows the brightness and color of each light pixel to be varied. While fulfilling the functions of a traditional signal light, it can also send pixelated interactive signals to surrounding traffic participants. This allows the car's signal lights to present different visual effects based on different needs, enhancing the user's personalized experience.

[0109] In summary, the present application provides an optical module, comprising a plurality of light sources 2, and light-isolating components 3 provided on both sides of each light source 2 and a light-emitting component 4 located in the light-emitting direction of the light source, the light-isolating component 3 extending toward the light-emitting direction of the light source 2, the adjacent light sources 2 are isolated by the light-isolating component 3 to avoid light interference, the light-emitting component 4 covers the gaps between the plurality of light sources 2 and the plurality of light-isolating components 3, and the light emitted by the light source 2 is emitted after passing through the light-emitting component 4. The present application is able to effectively block the light interference of the adjacent light sources 2 by providing the light-isolating components 3 on both sides of the light source 2, after the light source 2 emits the light, the light is emitted through the light-emitting component 4, and the light-emitting component 4 surrounds and covers the light source 2, so that the light emitted by the light source 2 can enter the light-emitting component 4 to the maximum extent and be output by the light-emitting component 4, thereby effectively improving the light efficiency, increasing the brightness of a single display pixel, and improving the display effect. Therefore, the present application can achieve high-brightness and uniform lighting of the low-power light source 2.

[0110] In addition, silicone or similar soft light-isolating components 3 and light-emitting components 4 can be directly injection-molded onto the circuit board 1, reducing the installation structure of traditional plastic parts, which is beneficial to reducing the space of the optical module and simplifying the assembly process. The minimum thickness of this optical module can be 5mm~6mm; under the premise of ensuring the uniformity of lighting, the pixel center spacing can be reduced to a minimum of 3mm~4mm, so that the pixel density is higher than that of existing interactive signal lights, improving the display resolution, but lower than the pixel density of miniLED display screens, so the cost is relatively acceptable; LED light sources preferably use side-emitting type, so that the height of the light-isolating component 3 can be reduced to a minimum of 3mm~4mm, while achieving a high pixel fill rate, thereby reducing the space requirement of the entire interactive signal light.

[0111] In order to facilitate the control of the multiple light sources 2 , the optical module further includes a circuit board 1 , and the multiple light sources 2 are electrically connected to the circuit board 1 .

[0112] Optionally, the distance between the optical center axes of two adjacent light sources 2 is between 4 mm and 20 mm. For example, the distance between the optical center axes of two adjacent light sources 2 can be 4 mm, 5 mm, 8 mm, 10 mm, 15 mm or 20 mm.

[0113] Optionally, the bottom dimension of the light-isolating component 3 close to the light source is larger than the top dimension of the light-isolating component 3 away from the light source, so that the light-isolating component 3 forms a trapezoidal column structure.

[0114] The light-isolating component 3 and the light source are both located on the circuit board 1, the bottom end of the light-isolating component 3 and the bottom end of the light source 2 are coplanar, and the light-isolating component 3 extends toward the light-emitting direction of the light source 2, that is, in the light-emitting direction, the height of the light-isolating component 3 is greater than the height of the light source 2; as can be seen from Figure 11, the height of the light-isolating component 3 is at least greater than twice the height of the light source 2; so that the light emitted by one light source 2 can be effectively blocked by two adjacent light-isolating components 3, thereby avoiding interference between the light of the light source 2 and the light of the adjacent light source 2 and affecting the light-emitting effect.

[0115] A light-isolating component 3 is provided on both sides of each light source 2. In the light-emitting direction, the central axis of the light-isolating component 3 is parallel to the central axis of the light source 2. The light-isolating component 3 forms a trapezoidal column structure with a large bottom and a small top, so that the light from the light source 2 is emitted in a divergent manner.

[0116] The light-isolating component 3 is made of opaque silicone or similar soft material; the distance between the top ends of two adjacent light-isolating components 3 is between 2.5 mm and 15 mm.

[0117] Optionally, light emitting component 4 is located in the light emitting direction of light source 2. Light emitting component 4 outputs the light emitted by light source 2 and fills the gap between light source 2 and light-isolating component 3, so that light emitting component 4 covers the light emitting path of light source 2 to the greatest extent possible. Light emitted by light source 2 can enter light emitting component 4 in the greatest amount and then be output by light emitting component 4. For example, light emitting component 4 is made of silicone or a similar soft material with scattering properties. The height of the pixel in the light emitting direction is approximately 2.5 mm to 10 mm, that is, the height of light emitting component 4 in the light emitting direction is between 2.5 mm and 10 mm, to optimize the efficiency of light propagation.

[0118] From the above, it can be seen that the light-isolating component 3 and the light-emitting component 4 can both be made of silicone or similar soft materials, so that the light-isolating component 3 and the light-emitting component 4 can be directly injection-molded onto the circuit board 1, reducing the installation structure of traditional plastic parts, which is beneficial to reducing the space of the optical module and simplifying the assembly process. The minimum thickness of this optical module can be between 5mm and 6mm.

[0119] Furthermore, when preparing the optical module provided by this application, as shown in Figures 12 and 13 , the light sources 2 can first be soldered to the circuit board 1 at the desired spacing. A mold can then be used to injection-mold the light-isolating component 3 onto the circuit board 1. Finally, the light-emitting component 4 can be inserted above the light sources and light-isolating component 3 using mold injection molding or dispensing. This makes preparation simple and efficient.

[0120] Alternatively, multiple light sources 2 may be evenly distributed on the circuit board 1, meaning the spacing between any two adjacent light sources 2 may be equal, but this is not limiting. In some achievable embodiments, the spacing between at least two adjacent light sources 2 may be different. Similarly, multiple light-shielding components 3 may be evenly distributed on the circuit board 1, and the spacing between any two adjacent light-shielding components 3 may be equal or unequal, depending on actual needs.

[0121] Another aspect of the present application provides an optical control method for an optical module. The optical control method for an optical module is applied to the above-mentioned optical module, and the optical control method includes:

[0122] 1) When the ambient illumination is less than the preset illumination, the driving currents of the plurality of light sources 2 are controlled to light up at their respective predetermined driving currents;

[0123] 2) When the ambient illumination is greater than or equal to the preset illumination, the driving current of some light sources 2 is reduced.

[0124] It should be noted that the optical control method of the optical module provided in this application is applied to the above-mentioned optical module. The optical control method includes: controlling the magnitude of the driving current of the plurality of light sources 2 according to the ambient illumination.

[0125] In some embodiments, when the ambient illumination is greater than or equal to a preset illumination, the driving current of some light sources 2 may be reduced to 0, that is, some light sources 2 are turned off. In other embodiments, the driving current of some light sources 2 may be reduced and the driving current of the remaining light sources 2 may be increased. The increase in the driving current of the remaining light sources 2 is positively correlated with the decrease in the driving current of some light sources 2.

[0126] Specifically, the light sources 2 with reduced driving current and the light sources with non-reduced driving current can be selected at intervals to ensure the integrity of the displayed information.

[0127] Specifically, controlling the magnitude of the driving current of the plurality of light sources 2 according to the ambient illumination can be achieved in the following manner:

[0128] 1) When the ambient illumination is less than a preset illumination, the driving currents of the multiple light sources 2 are controlled to illuminate at their respective predetermined driving currents. That is, when the ambient illumination is low, the driving currents of the multiple light sources 2 can be controlled to illuminate at their respective predetermined currents. In this way, the effect of high pixel resolution can be achieved when the ambient illumination is low.

[0129] 2) When the ambient illumination is greater than or equal to the preset illumination, the driving current of some light sources 2 is reduced and the driving current of the remaining light sources 2 is increased. In other words, when the ambient illumination is high, the driving current of some light sources 2 can be reduced and the predetermined current of the remaining light sources 2 can be increased. In this way, the effect of high brightness pixels and high recognition can be achieved when the ambient illumination is high.

[0130] For ease of understanding, it is assumed that the optical module includes a total of n light sources 2, wherein the driving currents of each single light source 2 in the n light sources 2 are I1, I2, ..., I n The maximum driving current allowed for a single light source 2 is I max At this time, if the ambient illumination is less than the preset illumination, each of the n light sources 2 is driven by its own predetermined driving current (I1, I2, ... I n if so, the ambient illumination is greater than or equal to the preset illumination, the predetermined driving current of the n light sources 2 can be reduced, and the predetermined driving current of the remaining light sources 2 can be increased.

[0131] Assume that the predetermined driving current of m light sources 2 is reduced, wherein the reduction amount of the predetermined driving current of each light source 2 in the m light sources 2 is Δ1, Δ2, ... Δ m , the driving current I of light source i among the remaining light sources ix Calculated according to the following formula: ix =ΔI x +I i max ;

[0132] Among them, ΔI x is the average increase in the driving current of the remaining light sources, I i is the predetermined driving current of light source i, I max is the maximum driving current, and the average increase value ΔI of the driving current of the remaining light sources x Calculate according to the following formula: ΔI x =(Δ1, Δ2, ... Δ m ) / (nm);

[0133] Of course, the above-mentioned increase and decrease methods are only examples, and this application is not limited to the above-mentioned theoretical calculation values. The increase in the above-mentioned predetermined driving current can be appropriately adjusted according to the distribution and heat resistance of the light source 2, and the increase and / or decrease in the driving current of each light source 2 can be adjusted to different values ​​as needed.

[0134] The present application provides an optical control method for an optical module, which can adjust the predetermined driving current of the light source 2 under different illuminations, thereby achieving high pixel resolution when the ambient illumination is low, and achieving high pixel brightness and high recognition when the ambient illumination is high, thereby achieving functional optimization without increasing hardware costs.

[0135] ​Optionally, the preset illuminance may be 1000 lux. Of course, the preset illuminance value is only an example and is not intended to limit the present application. Those skilled in the art may adjust the specific value of the preset illuminance according to different requirements in different application scenarios.

[0136] The present application also provides a vehicle exterior, including the above lighting system device. The vehicle exterior can be, for example, a grille, a bumper surface, an exterior door panel, etc., but the present application is not limited thereto.

[0137] The present application also provides a vehicle interior, including the above lighting system device. The vehicle interior can be, for example, a vehicle interior lighting lamp, an ambient light, etc., but the present application is not limited thereto.

[0138] The above are merely preferred embodiments of the present application and are not intended to limit the present application. Those skilled in the art will readily appreciate that various modifications and variations are possible. Any modifications, equivalent substitutions, or improvements made within the spirit and principles of the present application shall be included within the scope of protection of the present application. Industrial Applicability

[0139] The vehicle interior and exterior lighting system device, optical module, and optical control method disclosed herein can achieve high-brightness, uniform lighting from a low-power light source at a low cost, resolving the existing art issue of achieving a balance between display quality and cost. The optical module can be applied to automobiles, motorcycles, bicycles, ships, and other fields.

Claims

1. A lighting system device, characterized in that: include: An optical module, the optical module comprising at least one light source, and light-isolating components arranged on both sides of the light source and a light-emitting component located in the light-emitting direction of the light source; A cover plate is provided for the optical module to emit light, and the cover plate includes a substrate, a primer layer, a color paint layer and a transparent paint layer stacked in sequence; the substrate is located between the primer layer and the optical module, the primer layer is provided with a plurality of first light-transmitting holes, the color paint layer is provided with a plurality of second light-transmitting holes, at least part of the second light-transmitting holes are connected with at least part of the first light-transmitting holes, and the correspondingly connected first light-transmitting holes and the second light-transmitting holes together form light-transmitting hole positions.

2. The lighting system device according to claim 1, characterized in that: The first light-transmitting hole and the second light-transmitting hole have the same shape and size.

3. The lighting system device according to claim 1, characterized in that: When the cross section of the light-transmitting hole is circular, the ratio of the aperture of the light-transmitting hole to the center distance between two adjacent light-transmitting holes is less than or equal to 0.2; And / or, the area of ​​the plurality of light-transmitting holes on the cover plate accounts for less than or equal to 3.14%.

4. The lighting system device according to claim 1, characterized in that: The opening shape of the light-isolating component is the same as the cross-sectional shape of the light-transmitting hole; Alternatively, the projection of the opening of the light-isolating component covers the projection of the light-transmitting hole.

5. The lighting system device according to claim 1, characterized in that: The ratio range of the aperture of the light-transmitting hole and the center distance between two adjacent light-transmitting holes is determined according to the brightness of the paint layer of the cover plate; and / or, the area ratio range of the multiple light-transmitting holes on the cover plate is determined according to the brightness of the paint layer of the cover plate.

6. The lighting system device according to claim 5, characterized in that: The ratio of the aperture of the light-transmitting hole to the center distance between two adjacent light-transmitting holes satisfies the following formula: Among them, D is the aperture, L is the center distance between two adjacent light-transmitting holes, V is the brightness of the paint layer of the cover plate, a is a constant greater than 0 and less than 1, and the value of a is determined according to the type of the paint layer of the cover plate.

7. The lighting system device according to claim 5, characterized in that: The area ratio S of the plurality of light-transmitting holes on the cover plate satisfies the following formula: S≤b*V 2 -c*V+d; Wherein, V is the brightness of the paint layer of the cover plate, b is greater than 7*10 -5 And less than 9*10 -5 A constant, c is a constant greater than 0 and less than 0.1, d is a constant greater than 5 and less than 15, and the values ​​of b, c and d are determined according to the type of the color paint layer of the cover plate.

8. The lighting system device according to claim 1, characterized in that: The light-isolating component extends toward the light-emitting direction of the light source, and the adjacent light sources are isolated by the light-isolating component. The light-emitting component covers the gaps between the plurality of light sources and the plurality of light-isolating components, and the light emitted by the light source is emitted to the cover plate after passing through the light-emitting component.

9. An optical module, characterized in that: The invention comprises a plurality of light sources, and light-isolating components arranged on both sides of each of the light sources and a light-emitting component located in the light-emitting direction of the light sources, wherein the light-isolating components extend toward the light-emitting direction of the light sources, and the adjacent light sources are isolated from each other by the light-isolating components. The light-emitting component covers the gaps between the plurality of light sources and the plurality of light-isolating components, and the light emitted by the light sources is emitted after passing through the light-emitting components.

10. The optical module according to claim 9, wherein: The light source is located on the circuit board, the materials of the light isolation component and the light emitting component at least include silicone, and the light isolation component and the light emitting component are sequentially formed on the circuit board.

11. The optical module according to claim 10, wherein: The light isolation component is injection molded on the circuit board.

12. The optical module according to claim 10, wherein: The light emitting component is filled between the light isolating components by injection molding or dispensing, and covers the light source and the light isolating components.

13. The optical module according to claim 9, wherein: The size of the bottom end of the light-isolating component close to the light source is larger than the size of the top end of the light-isolating component away from the light source, so that the light-isolating component forms a trapezoidal column structure.

14. The optical module according to any one of claims 9 to 13, characterized in that: The distance between the optical center axes of two adjacent light sources is between 4 mm and 10 mm; And / or, the distance between the top ends of two adjacent light-isolating components is between 2.5 mm and 15 mm.

15. An optical control method of an optical module, characterized in that: Applied to the optical module according to any one of claims 9 to 14, the optical control method comprises: When the ambient illumination is less than the preset illumination, controlling the driving currents of the plurality of light sources to light up respectively with respective predetermined driving currents; When the ambient illumination is greater than or equal to the preset illumination, the driving current of part of the light sources is reduced.

16. The optical control method of the optical module according to claim 15, characterized in that: When the ambient illumination is greater than or equal to the preset illumination, reducing the driving current of part of the light source further includes: Reducing the driving current of some of the light sources to 0; And / or, increasing the driving current of the remaining light sources.

17. The optical control method of the optical module according to claim 16, wherein: The increase amount of the driving current of the remaining light sources is positively correlated with the decrease amount of the driving current of some of the light sources.

18. The optical control method of the optical module according to claim 17, wherein: The driving current I of the light source i among the remaining light sources ix Calculated according to the following formula: ix =ΔI x +I i max ;​ Among them, ΔI x is the average increase in the driving current of the remaining light sources, I i is the predetermined driving current of light source i, I max is the maximum driving current, and the average increase value of the driving current of the remaining light sources is ΔI x Calculated according to the following formula: I x =(Δ1、Δ2、……Δ) m ) / (nm); Wherein, n is the total number of the light sources, m is the number of the light sources of the reduced driving current, Δ1, Δ2, ... Δ m are respectively a reduction amount of the predetermined driving current of each of the m light sources.

19. A vehicle exterior, characterized in that: The invention comprises a lighting system device as claimed in any one of claims 1 to 8.

20. A vehicle interior, characterized in that: The invention comprises a lighting system device as claimed in any one of claims 1 to 8.

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