Illuminated vehicle interior trim panel

By designing interior luminous panels and utilizing a flexible base layer and a luminous fabric layer with an interwoven optical fiber structure, the problem of insufficient aesthetics in car interiors is solved, providing diverse luminous effects and durability, and enhancing the driving experience.

WO2025201391A1PCT designated stage Publication Date: 2025-10-02SUZHOU FIR TUNG AUTOMATIVE INTERIORS MATERIAL CO LTD +1
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Patent Information

Application Number
PCT/CN2025/084987
Authority / Receiving Office
WO · WO
Patent Type
Applications
Current Assignee / Owner
Priority Date
2024-03-29
Filing Date
2025-03-26
Publication Date
2025-10-02

AI Technical Summary

Technical Problem

Existing car interior materials lack aesthetics and decorativeness, resulting in a monotonous and boring driving experience, which cannot meet the needs of young people for a colorful driving atmosphere.

Method used

A car interior luminous trim is designed, including a flexible base layer, a luminous fabric layer and a translucent fabric layer. Polymer optical fibers and yarns are interwoven into 2D and 3D structures. Combined with LED modules and power supplies, a flexible luminous fabric layer is formed as a light source, eliminating the traditional LED backlight source.

Benefits of technology

It achieves diverse luminous effects and flexibly matches the interior structure of the vehicle, enhancing the aesthetics and decorativeness of the driving experience. The luminous fabric layer is durable and not prone to aging, with minimal color decay.

✦ Generated by Eureka AI based on patent content.

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Abstract

Provided in the present invention is an illuminated vehicle interior trim panel, comprising, successively arranged from bottom to top, a flexible base layer, a luminous fabric layer, a light-transmitting fabric layer and a decorative layer. The luminous fabric layer is formed by interweaving a plurality of polymer optical fibers and yarns into a 2D structure, the plurality of polymer optical fibers being connected to a power source by means of a LED module. The light-transmitting fabric layer is formed by interweaving a plurality of polymer optical fibers and yarns into a 3D structure. In the illuminated vehicle interior trim panel provided by the present invention, a traditional LED backlight source is removed, such that there is no need to take into account the mounting position of a backlight panel in product design. The luminous fabric layer formed by interweaving the plurality of polymer optical fibers and yarns into the 2D structure is used as a light source, and the flexibility of the material of the luminous fabric layer enables better fit with the shapes of door panels. In addition, single-side lighting, double-side lighting and four-side lighting configurations can be implemented according to different requirements.
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Description

A luminous decorative panel in a car Technical Field

[0001] The present invention relates to the technical field of automobile interior decoration, and in particular to a luminous decorative panel inside a vehicle. Background Art

[0002] Nowadays, demands for automotive interiors extend beyond comfort to include increasingly high aesthetics and decorative features. Currently, covering products such as roofs, door inserts, pillars, instrument panels, instrument panel trim strips, and console covers are typically overlaid with conventional PET knitted fabrics, leather, and other materials. These coverings often serve only as surface protection and decorative elements. This results in a monotonous and boring driving experience for passengers, a phenomenon that contradicts young people's desire for a vibrant and engaging driving experience.

[0003] Therefore, in view of the shortcomings of the existing technology, it is necessary to design an interior luminous panel to solve the above problems. Summary of the Invention

[0004] In order to overcome the above-mentioned deficiencies in the prior art, the present invention aims to provide a vehicle interior luminous decorative panel.

[0005] To achieve the above-mentioned and other related purposes, the technical solution provided by the present invention is: a vehicle interior luminous trim panel, comprising a flexible base layer, a luminous fabric layer, a translucent fabric layer and a decorative layer arranged in sequence from bottom to top; the luminous fabric layer is composed of a plurality of polymer optical fibers and yarns interwoven into a 2D structure, and the plurality of polymer optical fibers are connected to a power supply via an LED module; the translucent fabric layer is composed of a plurality of polymer optical fibers and yarns interwoven into a 3D structure.

[0006] A preferred technical solution is that the flexible base layer and the light-emitting fabric layer, the light-emitting fabric layer and the light-transmitting fabric layer, and the light-transmitting fabric layer and the decorative layer are all bonded together by a glue layer.

[0007] The preferred technical solution is that the flexible base layer is made of sponge.

[0008] The preferred technical solution is: the decorative layer adopts at least one of PVC surface, TPO surface, PU surface, silicone surface and knitted fabric.

[0009] The preferred technical solution is: the glue layer uses PUR glue.

[0010] Due to the application of the above technical solution, the beneficial effects of the present invention are as follows: The present invention proposes an in-vehicle luminous trim panel, which eliminates the traditional LED backlight light source, and the product design does not need to consider the installation position of the backlight panel. The luminous fabric layer composed of multiple polymer optical fibers and yarns woven into a 2D structure is used as the light source. The flexibility of its own material can better match the shape of the door panel, and can meet various diverse needs; and, according to different needs, it can also be made into single-sided lighting, double-sided lighting, four-sided lighting, etc. BRIEF DESCRIPTION OF THE DRAWINGS

[0011] FIG1 is a schematic cross-sectional view of a vehicle interior luminous decorative panel according to the present invention. DETAILED DESCRIPTION

[0012] The following describes the implementation of the present invention through specific embodiments. People skilled in the art can easily understand other advantages and effects of the present invention from the contents disclosed in this specification.

[0013] Please refer to Figure 1. It should be noted that in the description of the present invention, it should be noted that the terms "center", "up", "down", "left", "right", "vertical", "horizontal", "inside", "outside" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, or the orientations or positional relationships in which the inventive product is usually placed when in use. They are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the device or element referred to must have a specific orientation, be constructed and operated in a specific orientation, and therefore cannot be understood as limiting the present invention. In addition, the terms "first", "second", "third" and the like are only used to distinguish descriptions and cannot be understood as indicating or implying relative importance. Terms such as "horizontal", "vertical", and "overhanging" do not mean that the components are required to be absolutely horizontal or overhanging, but can be slightly tilted. For example, "horizontal" only means that its direction is more horizontal than "vertical", and does not mean that the structure must be completely horizontal, but can be slightly tilted.

[0014] In the description of the present invention, it should also be noted that, unless otherwise expressly specified or limited, the terms "disposed," "installed," "connected," and "connected" should be understood in a broad sense. For example, they may refer to fixed connections, detachable connections, or integral connections; mechanical connections, electrical connections, direct connections, indirect connections through an intermediate medium, and internal connections between two components. Those skilled in the art will understand the specific meanings of the above terms in the present invention based on specific circumstances.

[0015] Example: As shown in Figure 1, according to an overall technical concept of the present invention, a car interior luminous trim panel is provided, including a flexible base layer 1, a luminous fabric layer 2, a translucent fabric layer 3 and a decorative layer 4 arranged in sequence from bottom to top; wherein, the luminous fabric layer 2 is composed of multiple polymer optical fibers and yarns interwoven into a 2D structure, and the multiple polymer optical fibers are connected to the power supply through an LED module; the translucent fabric layer 3 is composed of multiple polymer optical fibers and yarns interwoven into a 3D structure.

[0016] As shown in FIG1 , in an exemplary embodiment of the present invention, the flexible base layer 1 and the light-emitting fabric layer 2 , the light-emitting fabric layer 2 and the light-transmitting fabric layer 3 , and the light-transmitting fabric layer 3 and the decorative layer 4 are all bonded together by a glue layer 5 .

[0017] As shown in FIG1 , in an exemplary embodiment of the present invention, the flexible base layer 1 is made of sponge, which can give the decorative panel an elastic touch, thereby improving the texture.

[0018] As shown in FIG1 , in an exemplary embodiment of the present invention, the decorative layer is made of at least one of PVC surface, TPO surface, PU surface, silicone surface and knitted fabric.

[0019] As shown in FIG. 1 , in an exemplary embodiment of the present invention, the glue layer 5 is made of PUR glue.

[0020] The luminous principle of the luminous fabric layer 2 is to transmit the light energy emitted by the LED module to the surface of the fabric layer 2 through the optical fiber to scatter the light energy to form a luminous effect, that is, to convert a point light source into a surface light source.

[0021] The luminous fabric layer 2 is made of fine Hiroshima fibers through a woven process, resulting in a two-dimensional surface. The thickness of the product generally does not exceed 1mm. Due to this weaving process, the product is flexible and bendable, with a minimum bend radius of 5mm.

[0022] The luminous fabric layer 2 has the ability to convert remote light sources to the desired luminous areas. For areas where it is difficult to install light sources or where power cannot be connected, the light energy emitted by the light source is transmitted to the areas where light is required through optical fibers, thereby achieving the purpose of luminescence.

[0023] The luminous fabric layer 2 is also durable and resists long-term light and color decay. Current light sources experience these issues over time. In particular, LED light sources experience color decay and spectral shift over time, which can cause changes in the brightness and color of the light-emitting components, necessitating replacement of these components to maintain performance. However, the luminous fabric itself is a high-molecular polymer, and its physical properties remain stable under normal operating conditions (-40°C to 90°C). When the light source degrades, simply replacing it will restore performance to normal operation.

[0024] Therefore, the present invention has the following advantages: The present invention proposes an in-vehicle luminous trim panel that eliminates the traditional LED backlight light source, and the product design does not need to consider the installation position of the backlight panel. The luminous fabric layer composed of multiple polymer optical fibers and yarns woven into a 2D structure is used as the light source. The flexibility of its own material can better match the shape of the door panel and can meet various diverse needs; and, according to different needs, it can also be made into single-sided lighting, double-sided lighting, four-sided lighting, etc.

[0025] The above embodiments are merely illustrative of the principles and effects of the present invention and are not intended to limit the present invention. Anyone skilled in the art may modify or alter the above embodiments without departing from the spirit and scope of the present invention. Therefore, all equivalent modifications or alterations made by one of ordinary skill in the art without departing from the spirit and technical concepts disclosed herein are intended to be covered by the claims of the present invention.

Claims

1. A vehicle interior luminous panel, characterized by: It includes a flexible base layer, a luminous fabric layer, a light-transmitting fabric layer and a decorative layer arranged in sequence from bottom to top; The luminous fabric layer is composed of a plurality of polymer optical fibers and yarns interwoven into a 2D structure, and the plurality of polymer optical fibers are connected to a power source via an LED module; The light-transmitting fabric layer is composed of a plurality of polymer optical fibers and yarns interwoven into a 3D structure.

2. The vehicle interior luminous decorative panel according to claim 1, characterized in that: The flexible base layer and the light-emitting fabric layer, the light-emitting fabric layer and the light-transmitting fabric layer, and the light-transmitting fabric layer and the decorative layer are all adhered to each other via a glue layer.

3. The vehicle interior luminous decorative panel according to claim 1, characterized in that: The flexible base layer is sponge.

4. The vehicle interior luminous panel according to claim 1, characterized in that: The decorative layer is made of at least one of PVC surface, TPO surface, PU surface, silicone surface and knitted fabric.

5. The vehicle interior luminous decorative panel according to claim 2, characterized in that: The glue layer adopts PUR glue.

Citation Information

Patent Citations

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