WO2024041561A1

WO2024041561A1 - Optical interior trim part and vehicle interior structure

Info

Publication number: WO2024041561A1
Application number: PCT/CN2023/114423
Authority: WO
Inventors: 陈迪宇; 毕小凤; 柯尼希斯贝蒂娜
Original assignee: 延锋国际汽车技术有限公司
Priority date: 2022-08-25
Filing date: 2023-08-23
Publication date: 2024-02-29
Also published as: CN117656990A

Abstract

An optical interior trim part (100), comprising a light guide plate. The light guide plate comprises a plurality of layers of trim plates and has an exterior trim surface and an interior trim surface. The surfaces of at least two adjacent trim plates among the plurality of layers of trim plates are respectively provided with texture structures comprising ridge parts and recessed parts, the texture structures of the two adjacent layers overlap with each other, and incident light entering the light guide plate is guided out towards the exterior trim surface after the incident light makes contact with the texture structures. A vehicle interior structure comprises the optical interior trim part (100). The optical interior trim part is arranged in a way that the plurality of layers of trim plates two adjacent layers of which have texture structures comprising ridge parts and recessed parts are laminated, so that rich and varied light refraction and reflection effects are provided for light ray propagation under external ambient light irradiation and light source irradiation, thus improving the beauty and comfort of the interior trim part during use; and the optical interior trim part has a compact structure, is easy to assemble and has low cost, and therefore can be applied to various occasions, meeting diversified needs of users.

Description

Optical interior parts and vehicle interior structures

Technical field

The present invention relates to the technical field of vehicle accessories, and more specifically to an optical interior component for a vehicle and a vehicle interior structure having the optical interior component.

Background technique

With the rapid development of the automobile industry and consumers' increasing demand for vehicle functions, consumers are more inclined to have beautiful interior components. In recent years, crystal-textured decorative parts have gradually been used in car interiors. In relatively closed and small car interiors, crystal-textured products give people a transparent, refreshing sense of luxury, which is very attractive to consumers.

At present, optical interior parts with lighting effects are gradually being used in vehicles. For existing crystal-textured interior parts, in order to achieve colorful lighting effects, they are usually lit in the form of colorful RGB uniform backlights, and the backlight is used to refract time through the crystal decorative panels to achieve light and shadow/depth effects. However, existing solutions cannot achieve satisfactory lighting effects.

Contents of the invention

The purpose of the present invention is to propose an improved optical interior component, which, through optimized design of the internal structure, can obtain rich visual effects in both unlit and lit states.

To this end, according to one aspect of the present invention, an optical interior component is provided, which includes: a light guide plate, the light guide plate includes a multi-layer decorative panel and has an outer surface and an inner surface; wherein, The surface of at least two adjacent layers of the decorative panels in the multi-layered decorative panels is respectively provided with a texture structure including ridges and grooves. The texture structures of the two adjacent layers are superimposed on each other, and the incident light entering the light guide plate is in contact with the surface. The texture structure is then derived towards the exterior surface.

According to the above technical concept, the present invention may further include any one or more of the following optional forms.

In some optional forms, at least one surface of each layer of the multi-layer decorative panels is provided with the texture structure, and the texture structures on the surfaces of the multi-layer decorative panels that are not adjacent to each other are different. .

In some optional forms, two surfaces of each layer of the multi-layer decorative panel are respectively provided with The texture structure is different on different surfaces.

In some optional forms, the contours of the texture structures of two adjacent layers of the multi-layer decorative panel are adapted, and the ridges of one texture structure of the two adjacent layers of texture structures can be embedded in the grooves of the other layer of texture structures. among the ministry.

In some optional forms, the light guide plate includes an outer decorative panel, at least one intermediate decorative panel and an inner decorative panel that are stacked in sequence and whose adjacent surfaces are respectively provided with the texture structure. The outer decorative panel includes an outer surface with The exterior facing is formed and the interior trim panel includes an interior surface to form the interior facing.

In some optional forms, the optical interior component further includes a light source, the light source is arranged adjacent to the edge of the light guide plate and covers part or all of the edge of the light guide plate.

In some optional forms, the light source is configured to emit incident light to each layer of the multi-layer decorative panel respectively, and the incident light is adapted to be fully reflected in each layer of decorative panel and be reflected at the contact point. The texture structure is then derived towards the exterior surface.

In some optional forms, the direction of the incident light emitted by the light source is at an angle to the outer surface or inner surface of the light guide plate.

In some optional forms, at least one end of the light guide plate forms a bent portion and is adjacent to the light source, so that the light guide direction at the light incident surface of the light guide plate is consistent with the exterior facing or interior decoration. The face is angled.

In some optional forms, the texture structure is not provided in the light inlet area of the light guide plate.

In some optional forms, the optical interior component further includes a bracket attached to the inner surface of the light guide plate.

In some optional forms, the multi-layer decorative panel of the light guide plate is a transparent decorative panel, and the bracket includes a bracket surface visible from the outer facing.

In some alternative forms, the support surface includes decorative areas having color and/or pattern and/or texture.

In some alternative forms, the optical interior also includes a backlight arranged away from the surface of the bracket.

In some optional forms, the backlight provides dynamic animations and/or glowing patterns and/or textures.

In some optional forms, the bracket is provided with a receiving cavity to accommodate the light source and the The edge of the light guide plate.

In some optional forms, the optical interior parts further include a light shielding plate arranged on the outer surface adjacent to the light source and bounding the visible area of the light guide plate, and the texture structure at least distributed in the visible area.

In some optional forms, the light shielding plate is fixedly connected to the bracket to limit the light guide plate.

In some optional forms, the light shielding plate is provided with a reflective surface facing the light guide plate.

In some optional forms, the inner shape of the light shielding plate conforms to the shape of the outer surface of the light guide plate.

In some optional forms, the optical interior parts provide at least one of the following optical effects: (a) projection effects and/or decorative effects and/or color effects and/or patterns provided by the multi-layer decorative panels effect and/or surface effect, and/or (b) depth of field effect and/or decorative effect and/or color effect and/or pattern effect and/or surface effect provided by said exterior facing, and/or (c) The illumination effect provided by the light source, and/or (d) the illumination effect provided by the incident light emitted by the light source through the multi-layer decorative panel, and/or (e) the incident light emitted by the light source through the multi-layer The lighting effect provided by the veneer and said exterior finish, and/or (f) a daytime effect, and/or (g) a nighttime effect.

According to another aspect of the present invention, a vehicle interior structure is provided, and the vehicle interior structure includes the above-mentioned optical interior part.

The optical interior parts of the present invention provide rich and varied refraction for the propagation of light under external ambient light irradiation and light source irradiation by superimposing two adjacent layers of multi-layer decorative panels with a texture structure including ridges and grooves. The reflective light effect improves the aesthetics and comfort of interior parts. The optical interior parts of the present invention have compact structure, are easy to assemble and have low cost, can be used in various occasions and meet the diverse needs of users.

Description of drawings

Other features and advantages of the present invention will be better understood from the following detailed description of alternative embodiments taken in conjunction with the accompanying drawings, in which like reference numerals identify the same or similar parts, in which:

Figure 1A is a schematic diagram of the interior of the vehicle, showing the optical interior parts arranged between the secondary instrument panel and the rear seats;

Figure 1B is an enlarged schematic diagram of the interior of the vehicle;

Figure 2A is a schematic diagram of an optical interior component according to an embodiment of the present invention;

Figure 2B is a schematic side plan view of the optical interior component shown in Figure 2A;

Figure 3 is an exploded schematic view of the optical interior component shown in Figure 2A;

Figure 4A is an enlarged schematic diagram of part A in Figure 2B;

Figure 4B is an enlarged schematic diagram of part B in Figure 2B;

Figure 5 is similar to Figure 4A, showing the limit of the visible area by the light shield;

Figure 6A is a schematic diagram of external ambient light reflecting on the light guide plate in an unlit state;

Figure 6B is a schematic diagram of the refraction and reflection of external ambient light on the light guide plate through the multi-layer texture structure;

Figure 7A is a schematic diagram of the total reflection of the incident light emitted by the light source in each layer of decorative panels of the light guide plate in the lighted state;

Figure 7B is a schematic diagram of the incident light emitted by the light source in the lighting state being totally reflected in the first decorative plate and refracted out of the light guide plate after contacting the texture structure;

Figure 7C is a schematic diagram of the incident light emitted by the light source in the lighting state being totally reflected in the third decorative plate and refracted out of the light guide plate after contacting the texture structure;

Figure 8A is a schematic diagram of a stent according to another embodiment;

8B is a partial side plan view of an optical interior component of another embodiment.

Detailed ways

The implementation and use of the embodiments are discussed in detail below. It should be understood, however, that the specific embodiments discussed are merely illustrative of specific ways to make and use the invention and do not limit the scope of the invention. When describing, the structural position of each component, such as up, down, top, bottom, etc., are not absolute but relative. These directional representations are appropriate when the components are arranged as shown in the figures, but will change when the position of the components in the figures is changed.

As used herein, the expression "comprises" or its synonyms similar to "includes", "contains" and "having" are open-ended and do not exclude additional unrecited elements, steps or ingredients.

In this article, the terms "first", "second", "third" and other similar expressions are not used to limit the sequence and the number of components, unless otherwise stated.

In this article, "multiple" and "multiple layers" mean two or more, unless otherwise explicitly and specifically limited.

In this article, "outside" and "inside" are directions relative to the observer, "outside" refers to the direction facing the observer, and "inside" refers to the direction away from the observer.

In this article, unless otherwise clearly and specifically limited, terms such as "installation", "connection" and "attachment" should be understood in a broad sense. For example, they can be fixed connections, detachable connections, or integrated; they can be It can be directly connected or indirectly connected through an intermediate medium. It can be the internal connection between two elements or the interaction between two elements. For those skilled in the art, the specific meanings of the above terms in this article can be understood according to specific circumstances.

It should be understood that the term "vehicle" mentioned in this article includes but is not limited to vehicles, ships, aircraft, etc., where "vehicle" includes fuel vehicles, hybrid vehicles, electric vehicles, hydrogen-powered vehicles, etc., and may be Various vehicle models, such as small cars, buses, rail vehicles, etc., are not limited to those shown in the illustrations. In the following description, the optical interior parts are mainly applied to small cars. However, this does not rule out that the present invention can be applied to other types of vehicles.

In each of the described embodiments, unless otherwise specified, the thickness of each decorative plate in the light guide plate is a thickness range generally suitable for use in the art, and is not limited to what is shown in the figures. In addition, although the drawings show a substantially planar stacked decorative panel, the decorative panel of the present invention may also be a curved decorative panel. In various embodiments, a separate trim panel is described, however in some cases, the surface of the trim panel may also use special coatings or layers to provide functions such as durability and/or comfort.

Existing optical interior parts are usually lit in the form of colorful RGB uniform backlights, using the refraction of time through the backlight through the interior parts to achieve light and shadow/depth effects. However, since there is only one light source per unit area, the diversity of lighting effects (color, light intensity, dynamic effects) will be limited by the lighting structure, making it impossible to superimpose multiple colors on the same area. In some solutions, although multi-layer panels are used and light sources are independently incident on each layer of the panel to light up different characters or icons on the panel, specific processing is still required in terms of panel material, performance and pattern distribution, and through the real image The use of patterns and virtual image patterns in order to obtain three-dimensional visual effects and dynamic pattern changes is not satisfactory in terms of practical application and user experience. With the increasing development of intelligent vehicles and consumers' increasing demands for comfort and aesthetics, optical interior parts still need to be improved in many aspects.

To this end, according to the concept of the present invention, an optical interior component is provided. The optical interior component includes: a light guide plate, the light guide plate includes a multi-layer decorative panel and has an outer surface and an inner surface; wherein, the plurality of The surfaces of at least two adjacent layers of the decorative panels are respectively provided with texture structures including ridges and grooves. The texture structures of the two adjacent layers are superimposed on each other. The incident light entering the light guide plate is directed toward the texture structure after contacting the texture structure. Export to exterior facing. Here, the ridge portion of the texture structure means protruding with respect to the shape of the surface forming the texture structure, and the groove portion means being recessed relative to the surface form forming the texture structure. Advantageously, the contours of the texture structures of two adjacent layers of the multi-layer decorative panel are adapted, whereby the contours are adapted and superimposed on each other in such a way that the ridge of one layer of the texture structure of the two adjacent layers of texture structures can be A smaller gap is embedded in the groove of another layer of texture structure, thereby forming an optical structure that changes the light transmission angle on the superimposed interface, so as to be suitable for presenting rich light effects.

In this way, compared with existing solutions, the present invention superimposes multi-layer decorative panels with texture structures and advantageously adapts the contours of the texture structures of two adjacent layers to make the overall structure of the optical interior parts compact and at the same time , when not lit, the external ambient light achieves different refraction and reflection effects through the multi-layered texture structure, and richly layered decorative effects can be observed from different observation angles. When combined with light source lighting, through the distribution of light source positions and/or the ratio of different light sources (color, light intensity, etc.), even if the observation angle or observation area is fixed, the optical interior parts can present changing light effects. , thereby creating an unpredictable and distinctive decorative effect without being limited by existing limitations such as trim material and vehicle interior space.

As shown in FIGS. 1A and 1B , vehicle V includes an interior having an instrument panel IP and a sub-instrument panel FC. As an example, the optical interior parts 100 of the present invention are arranged in the middle of the front and rear seats by utilizing the space between the sub-instrument panel FC and the rear seats. However, this is not a limitation. The optical interior parts 100 may be suitable depending on different needs. It can be placed anywhere else in the car to form the interior structure of the vehicle, such as door panels DP, instrument panel IP, and even air-conditioning system air outlet devices AV and other areas that require lighting applications.

With reference to FIGS. 2A to 3 , an optical interior part 100 according to an embodiment of the present invention is shown. The light guide plate includes an outer decorative panel, at least one intermediate decorative panel and an inner decorative panel that are stacked in sequence and have texture structures on adjacent surfaces respectively. The outer decorative panel includes an outer surface to form the outer decorative panel, and the inner decorative panel includes an inner surface to form the outer decorative panel. Form the interior surface. In the embodiment shown, the light guide plate includes a first decorative panel 110 , a second decorative panel 120 and a third decorative panel 130 that are stacked in sequence. The first decorative panel 110 constitutes an external decorative panel, and the third decorative panel 130 constitutes an internal decorative panel. . It should be understood that the number of stacked decorative panels can be selected according to actual needs, and, as an example, the decorative panels are shown as approximately rectangular in shape, and other suitable shapes are possible, such as circular, depending on the environment in which they are applied. shapes or other polygons, etc.

In some embodiments, at least one surface of each layer of the multi-layer decorative panel is provided with a texture structure, and the texture structure is different on surfaces of the multi-layer decorative panel that are not adjacent to each other. For example, as illustrated in FIG. 4A , the first trim panel 110 includes a first outer surface 111 configured as a plane and forms the The outer surface, and the first inner surface 114 with a textured structure; the second decorative panel 120 includes a second outer surface 121 and a second inner surface 124 with a textured structure respectively; the third decorative panel 130 includes a third decorative panel with a textured structure. The outer surface 131, and the third inner surface 134 configured as a plane and forming the inner surface; wherein, the texture structure contours on the adjacent first inner surface 114 and the second outer surface 121 are adapted to connect accordingly, and the second The contours of the texture structures on the inner surface 124 and the third outer surface 131 are adapted to connect accordingly, and the texture structures on the first inner surface 114 or the second outer surface 121 that are not adjacent to each other are connected to the second inner surface 124 or the third outer surface. The texture structure on the 131 is different. When a light guide plate with more than three layers of decorative panels is used, the texture structure is arranged in the same manner as above, and configuring the outermost first outer surface 111 and the innermost third inner surface 134 as a plane can facilitate installation and installation. Styling surface requirements, such as the outer surface to ensure smooth assembly and touch, and the inner surface to ensure smoothness to meet the assembly requirements of related components (such as the bracket to be described below).

In some embodiments, two surfaces of each layer of the multi-layer decorative panel are respectively provided with texture structures, that is, the first outer surface 111 and the third inner surface 134 can also be provided with texture structures, similarly , the texture structures on different surfaces are different.

Through the above method, the texture structures of each layer of decorative panels in the optical interior parts of the present invention are superimposed on each other and through the staggered arrangement of different texture structures on different surfaces, it can be illuminated by ambient light in the unlit state or light source irradiation in the lit state. Unique decorative effects are obtained below, which will be described in detail below with reference to specific embodiments.

In certain embodiments, the optical interior trim 100 further includes a bracket 300 attached to an interior surface of the light guide panel, in the illustrated embodiment, to a third interior surface of the third trim panel 130 . Surface 134. Advantageously, the multi-layer decorative panel of the light guide plate is a transparent decorative panel, and the bracket 300 includes a bracket surface 310 visible from the outer surface. In this way, combined with the additional design of the bracket surface 310, the light guide plate can present a richer light effect.

It should be understood that the material of the "transparent" decorative panel herein includes any one of polymethyl methacrylate (PMMA or organic glass), polycarbonate (PC), glass or crystal glass. When PMMA and other similar materials are used, injection molding can be used to form each layer of decorative panels with a textured structure, which is suitable for mass production and saves production costs. When using glass, numerically controlled machining (CNC) laser engraving can be used to engrave the textured structure. If you choose imitation crystal glass, you can use hot melt glass method or lost wax casting process to obtain the texture structure.

In certain embodiments, the optical interior 100 further includes a light source adjacent the guide. The edge of the light panel is arranged and configured to respectively emit incident light to each layer of the multi-layer decorative panel. In the embodiment shown, the light sources are respectively arranged at both longitudinal ends of the first decorative panel 110 , the second decorative panel 120 and the third decorative panel 130 . However, this is only an example, and it does not rule out that the light sources are respectively arranged at each layer of decorative panels. Both transverse ends, or only arranged at one end of each layer of decorative panels. In other words, the light source covers part or all of the edge of the light guide plate.

The light source is, for example, a point-shaped or linear light source, such as a light-emitting diode (LED) lamp bead or an LED light strip. One or more LED lamp beads may be arranged according to the length and/or thickness of each layer of decorative panels. In the embodiment shown, there are a first light source 410 and a second light source 420 formed by installing multiple matrix LED lamp beads on a PCBA. Each light source includes a light source component (one or more lamps) corresponding to each layer of decorative panels. beads), thereby emitting incident light for a specific color and/or intensity.

As a support structure or installation structure of the light guide plate, the bracket 300 is provided with accommodating cavities 320 and 330 to respectively accommodate the first light source 410, the second light source 420 and the edge of the light guide plate, as shown in FIG. 3 . According to the present invention, the incident light emitted by the light source is adapted to be totally reflected within each layer of veneer and directed towards the exterior veneer after contacting the texture structure. Here, the texture structure can be any structure that changes the propagation angle of the light entering the decorative panel and exports it. Through the contour design of the ridges and grooves and/or the surface height difference, the propagation angle is diversified and the exported light is unpredictable. , observers can experience different refraction and reflection light effects at different viewing angles. It should be understood that as long as the incident angle satisfies the total reflection condition, the incident light can be parallel to or at an angle with the outer surface or inner surface of the light guide plate. Preferably, in some embodiments, the direction of the incident light emitted by the light source is at an angle to the outer surface or the inner surface of the light guide plate. For example, in the illustrated embodiment, bending portions are respectively formed at both longitudinal ends of the light guide plate and are adjacent to the light source, so that the light inlet of the light guide plate forms an angle of approximately 90 degrees with the outer surface or inner surface, that is, the angle of the light guide plate The light guide direction at the light incident surface is at an angle of approximately 90 degrees to the exterior or interior surface. The light transmission direction is adjusted from the height direction of the vehicle to the horizontal direction of the vehicle, thus optimizing the spatial size of the optical interior parts in the length direction. Suitable for the application scenario shown in Figure 1A. Of course, other angles are also feasible if space permits, such as 45 degrees, 60 degrees, etc. Optionally, the light guide plate can also be provided with a bent portion at one end, while the other end remains parallel to the outer surface or the inner surface.

By providing the accommodation cavities 320 and 330 on the bracket 300, the first bending portion 112 of the first decorative panel 110, the first bending portion 122 of the second decorative panel 120, and the first bending portion of the third decorative panel 130 132 are superimposed on each other and then inserted into the accommodation cavity 320 to dock with the first light source 410, as shown in FIG. 4B. The second bending portion 113 of the first decorative panel 110 , the second bending portion 123 of the second decorative panel 120 and the third decorative panel The second bent portions 133 of the light source 130 are superimposed on each other and then inserted into the receiving cavity 330 to connect with the second light source 420, as shown in FIG. 4A.

In some embodiments, the optical interior part 100 further includes a light-shielding plate arranged on the exterior surface adjacent to the light source and bounding the visible area of the light guide plate, as shown in FIGS. 2A and 2B with the first light source. 410 corresponds to the first light shielding plate 210 and the second light shielding plate 220 corresponding to the second light source 420, and illustrates the visible area VA, wherein the texture structure is at least distributed in the visible area VA. In this way, the light shielding plate can also be used as a mounting structure for the light guide plate, and the light guide plate can be limited to the bracket by fixedly connecting the light shielding plate to the bracket. For example, when three layers of decorative panels are stacked and placed on the bracket 300 and the light inlet of each layer of decorative panels is aligned with the light source, the light shielding panel can be pressed down toward the outer surface and installed and fixed with fasteners 500 (such as bolts) respectively. At both ends of the bracket, the relative positional relationship between the decorative panel and the bracket is controlled by the shading plate. When the shading plate is installed, the position of the decorative panel is relatively fixed.

When the light shielding plate is used, as shown in FIG. 5 , the light shielding plate 220 positions or pre-installs the superimposed decorative panel on the bracket 300 and at the same time positions the high-intensity light source 420 and the bent part (or light inlet) of the decorative panel. The structure is hidden outside the visible area. Only the visible area can be seen from the viewing angle V1, and the light source 420 will not be directly looked at from the viewing angle V2 and the internal structure of the bracket that does not need to be seen will not be seen, ensuring beautiful appearance. sex.

Advantageously, the shape of the inner side of the light shielding plate is consistent with the shape of the outer surface of the light guide plate, especially the shape of the end portion with the bent portion. In this way, in some embodiments, the inner side of the light shielding plate can be configured as The reflective surface facing the light guide. For example, spray paint on the inside of a sunshade to increase light transmission efficiency.

The illumination effects that the optical interior parts of the present invention can exhibit will be further described below with reference to the accompanying drawings.

First, referring to Figures 6A and 6B, when the optical interior parts are in a non-lit state, the reflection of external ambient light on the light guide plate and the refraction of the texture structure on the multi-layer decorative plate can achieve a rich lighting effect. Taking a single environmental incident light I as an example, the incident light I is reflected by the first outer surface or outer surface of the first decorative panel 110 to form a light R1 and enters the observer's viewing angle range V; at the same time, the incident light I continues to pass through the first decorative panel 110. The incident light I is refracted in the plate 110 and reflected at the adjacent texture structures of the first decorative plate 110 and the second decorative plate 120 to form light R2 and is exported into the observer's viewing angle range V; the incident light I continues to be refracted in the second decorative plate 120 and Formed by reflection at the adjacent texture structures of the second decorative panel 120 and the third decorative panel 130 and refraction at the adjacent texture structures of the first decorative panel 110 and the second decorative panel 120 The light R3 is exported into the observer's viewing angle range V; and the incident light I continues to be refracted in the third decorative panel 130, and is reflected at the third inner surface or interior surface of the third decorative panel 130, and is combined with the second decorative panel. The refraction at the adjacent texture structures of 120 and the third decorative panel 130 and the refraction at the adjacent texture structures of the first decorative panel 110 and the second decorative panel 120 form the light R4 that is exported into the observer's viewing angle range V. It can be seen that the reflected and refracted light rays R1 to R4 will be projected within the viewing angle of the human eye, thereby achieving a visual effect of superimposed multi-layer texture changes with rich levels. Furthermore, on this basis, through different structural designs of the physical properties and/or texture structure of each layer of decorative panels, the angles of light reflection and refraction can be changed to produce different effects. In addition, combined with the design and control of the light sources of each layer, such as color and/or light intensity and/or lighting time, not only can multi-level lighting effects be achieved, but also various layers of decorative panels can be lit separately or simultaneously to achieve animation. /Static lighting effects, such as flowing water, flickering, breathing, depth perception, etc.

7A to 7C illustrate schematic diagrams of light paths of the optical interior parts in a lit state. In the illustrated embodiment, the light source component for the first trim panel 110 is shown as S1 , the light source component for the second trim panel 120 is shown as S2 , and the light source component for the third trim panel 130 is shown as S3 . Since there is no texture structure in the light inlet area, the entire bent portion of each layer of decorative panels is formed into a light guide suitable for total internal reflection of light. The incident light L1, L2, L3 is totally reflected inside the respective decorative panels, and will not be derived from the light guide plate when it is transmitted to a texture structure that contacts a total reflection angle greater than or equal to the total reflection angle, as shown in Figure 7A, ensuring the efficiency of light transmission to the greatest extent.

As an example, when the incident light L1 transmits and contacts the texture structure with an angle smaller than the total reflection angle, part of the light is still totally reflected in the first decorative plate 110, and the other part of the light will be refracted and exported to the first decorative plate 110 to form the light L1a. As shown in Figure 7B. For the incident light L3 in the third decorative panel 130, when it comes into contact with the texture structure that is smaller than the total reflection angle, part of the light will be refracted at least twice, that is, the second decorative panel 120 and the third decorative panel 130 are adjacent to each other. The first refraction at the texture structure forms light ray L3a, and then the second refraction at the adjacent texture structure between the first decorative plate 110 and the second decorative plate 120 forms light ray L3b. Therefore, each layer of the multi-layer decorative panel can reflect and refract light at the corresponding texture structure. The light finally observed by the human eye is the superposition of the multi-layer texture structure formed after multiple reflections and refractions. The lighting effect makes the lighting effect more visually unique, an effect that cannot be obtained with a single pattern or single layer of texture.

As mentioned above, by utilizing the transparent and visible characteristics of each layer of decorative panels of the light guide plate, the bracket 300 can Includes the surface of the bracket that is always visible from the exterior finish. In another embodiment shown in FIG. 8A , the stent surface 310a includes a decorative area with a color and/or pattern and/or texture structure. The decorative area is specifically designed, for example, through silk screen printing, spray painting, coating, electroplating and other processes. Color, pattern or texture as decoration. In this way, more complex and diversified visual effects can be obtained through the superposition of the texture structure on the bracket surface 310a, such as the diaphragm and the decorative plate, or the superposition of the spray pattern on the bracket surface 310a and the texture structure on the decorative plate.

In some embodiments, the optical interior also includes a backlight disposed away from the surface of the support. As shown in FIG. 8B in one embodiment, the backlight source 600 can use liquid crystal (LCD), organic light-emitting diode (OLED) or colorful matrix LED to provide a backlight solution, thereby combining the backlight source with the light source at the edge of the light guide plate, and the backlight The source 600 can provide corresponding dynamic animations and/or luminous patterns and/or textures as required, which can further enrich the lighting effects and meet the atmosphere requirements of certain specific scenes.

The optical interior parts of the present invention can achieve multi-layer reflection and refraction illumination effects through the multi-layer superimposed texture structure when illuminated by external ambient light in the unlit state, and when the light source illuminates each layer of decorative panels in the lit state. It can present changing light effects for different viewing angles or viewing ranges of the observer. The solution based on transparent decorative panels can also be combined with the design of the bracket surface of the bottom bracket and/or the backlight to create a unique and distinctive decorative effect. Depending on different application requirements and application scenarios, the optical interior parts of the present invention can provide at least one of the following optical effects: (a) projection effects and/or decorative effects and/or color effects and/or provided by multi-layer decorative panels Pattern effects and/or surface effects, and/or (b) depth of field effects and/or decorative effects and/or color effects and/or pattern effects and/or surface effects provided by exterior finishes, and/or (c) provided by The lighting effect provided by the light source, and/or (d) the lighting effect provided by the incident light emitted by the light source through the multi-layer decorative panel, and/or (e) the incident light emitted by the light source through the multi-layer decorative panel and exterior decoration lighting effects provided above, and/or (f) daytime effects, and/or (g) nighttime effects.

It should be understood here that the embodiments shown in the figures only show optional architectures, shapes, sizes and arrangements of various optional components of the optical interior parts according to the present invention. However, they are only illustrative and not limiting. Other shapes, sizes and arrangements may also be adopted without departing from the spirit and scope of the present invention.

It should be noted that the present invention (eg, inventive concept, etc.) has been described in the description of this patent document and/or illustrated in the drawings according to exemplary embodiments; the embodiments of the present invention are presented by way of example only and are not intended to be as a limitation on the scope of the invention. as described in the instructions and/or The structure and/or arrangement of elements of the inventive concepts embodied in the invention illustrated in the drawings are illustrative only. Although exemplary embodiments of the invention have been described in detail in this patent document, those of ordinary skill in the art will readily appreciate that equivalents, modifications, variations, and the like of the subject matter of the exemplary embodiments and alternative embodiments are possible and are considered to be within the scope of the present invention; all such subject matters (such as modifications, variations, embodiments, combinations, equivalents, etc.) are intended to be included within the scope of the present invention. It should also be noted that in the configuration and/or arrangement of the exemplary embodiments (e.g., in concept, design, structure, means, form, assembly, construction, means, function, system, process/method, steps, process/method Various/other modifications, changes, substitutions, equivalences, changes, omissions, etc. may be made in terms of the sequence of steps, operations, operating conditions, performance, materials, composition, combinations, etc.). ) without departing from the scope of the present invention; all such subject matter (such as modifications, variations, embodiments, combinations, equivalents, etc.) are intended to be included within the scope of the present invention. The scope of the present invention is not intended to be limited to the subject matter (such as details, structures, functions, materials, acts, steps, sequences, systems, results, etc.) described in the specification and/or drawings of this patent document. It is contemplated that the claims of this patent document will be properly construed to cover the full scope of the inventive subject matter (e.g., including any and all such modifications, variations, embodiments, combinations, equivalents, etc.); it should be understood that the use in this patent document The terminology is intended to provide a description of the subject matter of exemplary embodiments and is not intended to limit the scope of the invention.

It should also be noted that according to the exemplary embodiments, the present invention may include conventional technologies (such as technologies implemented and/or integrated in the exemplary embodiments, modifications, changes, combinations, equivalents), or may include any other applicable technologies (present and/or future), have the ability to perform the functions and processes/operations described in the instructions and/or illustrated in the figures. All such techniques (eg, techniques implemented in embodiments, modifications, variations, combinations, equivalents, etc.) are considered to be within the scope of the invention of this patent document.

Claims

An optical interior part, characterized in that the optical interior part includes:

A light guide plate, which includes a multi-layer decorative plate and has an outer surface and an inner surface;

Wherein, the surfaces of at least two adjacent layers of the decorative panels in the multi-layered decorative panels are respectively provided with texture structures including ridges and grooves. The texture structures of the adjacent two layers are superimposed on each other, and the incident light entering the light guide plate is After contacting the texture structure it is directed towards the exterior finish.
The optical interior parts according to claim 1, characterized in that at least one surface of each of the multi-layered decorative panels is provided with the texture structure, and the multi-layered decorative panels that are not adjacent to each other are provided with the texture structure. The texture structure on the surface is different.
The optical interior parts according to claim 1, wherein the texture structures are respectively provided on two surfaces of each layer of the multi-layer decorative panels, and the texture structures on different surfaces are different.
The optical interior part according to claim 1, characterized in that the contours of the texture structures of two adjacent layers of the multi-layer decorative panel are adapted, and the ridge of one layer of the texture structure of the two adjacent layers can be Embedded in the groove of another layer of texture.
The optical interior parts according to claim 1, wherein the light guide plate includes an outer decorative panel, at least one intermediate decorative panel and an inner decorative panel which are stacked in sequence and whose adjacent surfaces are respectively provided with the texture structure. The exterior trim panel includes an exterior surface to form the exterior trim panel, and the interior trim panel includes an interior surface to form the interior trim panel.
The optical interior part according to claim 1, characterized in that the optical interior part further includes a light source, the light source is arranged adjacent to the edge of the light guide plate and covers part or all of the edge of the light guide plate.
The optical interior part according to claim 6, characterized in that the light source is configured as Incident light is emitted to each layer of the multi-layer decorative panel respectively, and the incident light is suitable for total reflection in each layer of decorative panel and is directed toward the outer surface after contacting the texture structure.
The optical interior part according to claim 6, wherein the direction of the incident light emitted by the light source is at an angle to the outer surface or the inner surface of the light guide plate.
The optical interior part according to claim 8, wherein at least one end of the light guide plate forms a bent portion and is adjacent to the light source, so that the light guide direction at the light incident surface of the light guide plate is consistent with that of the light guide plate. The exterior or interior surfaces are angled.
The optical interior part according to claim 9, characterized in that the texture structure is not provided in the light inlet area of the light guide plate.
The optical interior part according to claim 6, wherein the optical interior part further includes a bracket attached to the inner surface of the light guide plate.
The optical interior part according to claim 11, wherein the multi-layer decorative panel of the light guide plate is a transparent decorative panel, and the bracket includes a bracket surface visible from the outer surface.
The optical interior part according to claim 12, characterized in that the support surface includes a decorative area having a color and/or a pattern and/or a texture structure.
The optical interior part according to claim 12, wherein the optical interior part further includes a backlight arranged away from the surface of the bracket.
The optical interior part according to claim 14, characterized in that the backlight provides dynamic animation and/or luminous patterns and/or textures.
The optical interior part according to claim 11, wherein the bracket is provided with a receiving cavity to accommodate the light source and an edge of the light guide plate.
The optical interior part according to claim 11, characterized in that the optical interior part further includes a light shielding plate, the light shielding plate is arranged on the outer surface adjacent to the light source and limits the available area of the light guide plate. The texture structure is at least distributed in the visible area.
The optical interior part according to claim 17, wherein the light shielding plate is fixedly connected to the bracket to limit the light guide plate.
The optical interior part according to claim 17, wherein the light shielding plate is provided with a reflective surface facing the light guide plate.
The optical interior part according to claim 17, characterized in that the inner shape of the light shielding plate fits the shape of the outer surface of the light guide plate.
The optical interior part according to any one of claims 1 to 20, characterized in that the optical interior part provides at least one of the following optical effects:

(a) Projection effects and/or decorative effects and/or color effects and/or pattern effects and/or surface effects provided by the multi-layer decorative panels, and/or

(b) Depth of field effect and/or decorative effect and/or color effect and/or pattern effect and/or surface effect provided by said exterior surface, and/or

(c) Illumination effects provided by light sources, and/or

(d) The lighting effect provided by the incident light emitted by the light source passing through the multi-layer decorative panel, and/or

(e) The lighting effect provided by the incident light emitted by the light source passing through the multi-layer decorative panel and the outer surface, and/or

(f) daytime effects, and/or

(g) Nighttime effect.
A vehicle interior structure, characterized in that the vehicle interior structure includes the optical interior part according to any one of claims 1 to 21.