Skyline neon lamp strip capable of being modeled

Abstract

The utility model relates to the technical field of lighting lamp strips, and discloses a modelable skyline neon lamp strip which comprises a light-transmitting strip, a flexible PCB (printed circuit board), LED (light-emitting diode) lamp beads, a light-blocking strip, a reflective layer and a retainer, the flexible PCB is fixedly embedded on the light-transmitting strip, the light-blocking strip is embedded on one side of the outer edge of the light-transmitting strip opposite to the back of the LED lamp beads along the extension direction of the light-transmitting strip, and the reflective layer is arranged on the light-transmitting strip. A light reflecting layer is coated between the inner side wall of the light blocking strip and the light-transmitting strip in the extending direction of the light blocking strip, a maintaining piece penetrating through the light-transmitting strip in the extending direction of the light-transmitting strip is embedded in the position, between the light reflecting layer and the back face of the LED lamp bead, in the light-transmitting strip, and the maintaining piece can support plastic deformation of the light-transmitting strip and the light blocking strip. According to the LED lamp strip, light waste can be effectively reduced, the light utilization rate can be effectively improved, the overall illumination intensity of the lamp strip can be effectively improved, the lamp strip can have the plastic deformation capacity while having the large bending degree, and the modeling performance of the lamp strip is effectively improved.

Description

Technical Field

[0001] The utility model belongs to the technical field of lighting strips, and in particular relates to a shapeable skyline neon strip. Background Art

[0002] Skyline neon light strip is a flexible lighting strip with decorative effects. It has the characteristics of good flexibility, energy saving and high efficiency, and easy installation. It can be designed into straight lines, curves or various irregular shapes to achieve linear lighting in straight or curved forms. It can simulate the outline of the city skyline and add a unique beauty and artistic atmosphere to the space. It is widely used in urban landscape lighting, building edging, home decoration, interior ceilings and other fields.

[0003] Existing unilateral luminous neon light strips, such as a neon light strip disclosed in Chinese Patent Publication No. CN218762994U and a neon light strip disclosed in Chinese Patent Publication No. CN217441434U, are formed by extruding a light-blocking rubber strip and a light-transmitting rubber strip in two colors, and a flexible PCB board with LED lamp beads is installed in a groove opened at the bottom of the light-blocking rubber strip. This will cause the light irradiated from the side of the LED lamp beads to irradiate the inner wall of the light-blocking rubber strip and is difficult to irradiate the light-transmitting rubber strip, thereby causing the light emitted by the LED lamp beads to be wasted and the light strip to be out of service. The problem of low light efficiency is that in order to improve the light output efficiency, it is usually necessary to increase the number or power of LED lamp beads, but this will lead to an increase in the heat generated by the LED lamp beads, which can easily cause aging of the light strip components and affect the service life of the light strip; in addition, since the light-blocking rubber strips and the light-transmitting rubber strips of the light strip are both soft rubber, although the light strip can be bent into shape, the light strip is too soft and is not conducive to the special shape of the light strip. Specifically, on the one hand, it is difficult to straighten the light strip, and on the other hand, the light strip itself is difficult to maintain a complex shape and needs to be fixed in multiple places, which makes the light strip have the problems of low installation efficiency and low aesthetics. Utility Model Content

[0004] In order to solve or partially solve the problems existing in the related art, the utility model provides a shapeable skyline neon light strip. The shapeable skyline neon light strip can effectively reduce light waste, effectively improve light utilization, effectively improve the overall light intensity of the light strip, and enable the light strip to have a large bendability and plastic deformation ability at the same time, thereby effectively improving the shapeability of the light strip.

[0005] The present application provides a sculpted skyline neon light strip, comprising a light-transmitting strip, a flexible PCB, LED lamp beads, a light-blocking strip, a reflective layer, and a retaining member. The light-transmitting strip is an integrally molded, light-transmitting cylindrical strip structure. A first cavity is formed in the middle of the light-transmitting strip, extending along the direction in which the light-transmitting strip extends. The flexible PCB is fixedly embedded in the light-transmitting strip at a position on one side of the first cavity. A plurality of LED lamp beads are arrayed on the flexible PCB, and the LED lamp beads are located in the first cavity.

[0006] A light-blocking strip is embedded on the side of the outer edge of the light-transmitting strip facing the back of the LED lamp bead along the extending direction of the light-transmitting strip, and a reflective layer is coated between the inner side wall of the light-blocking strip and the light-transmitting strip along the extending direction of the light-blocking strip;

[0007] A retaining member is embedded in the light-transmitting strip at a position between the reflective layer and the back of the LED lamp bead, and passes through the light-transmitting strip along the extension direction of the light-transmitting strip. The retaining member can support the plastic deformation of the light-transmitting strip and the light-blocking strip.

[0008] In an optional solution, the light-transmitting strip is divided into a diffusion area and a reflection area by the plane where its axis is located. The first cavity is located in the reflection area, the LED lamp beads are located in the reflection area and facing the diffusion area, and the light-blocking strip and the reflective layer do not exceed the range of the reflection area.

[0009] In an optional solution, the light-transmitting strip is transparent silicone or plastic mixed with a light diffuser. The light-transmitting strip and the light-blocking strip are formed as one piece by double-color extrusion through an extruder. The flexible PCB board, the retaining part and the light-transmitting strip are extruded and pressed together and fixed on the light-transmitting strip through an extruder.

[0010] In an optional solution, the symmetry axes of the light-transmitting strip, the flexible PCB board, the LED lamp beads, the light-blocking strip, the reflective layer, and the retaining member are on the same straight line.

[0011] In an optional solution, outer walls of the light-transmitting strip and the light-blocking strip are on the same cylindrical surface.

[0012] In one alternative, the light reflecting layer is a highly reflective coating.

[0013] The present application also provides a shapeable skyline neon light strip, comprising the aforementioned light-transmitting strip, a flexible PCB board, LED lamp beads, and a retaining member. The light-transmitting strip is an integrally molded light-transmitting cylindrical strip structure. A second cavity is formed in the center of the light-transmitting strip, extending along the direction in which the light-transmitting strip extends. Two flexible PCB boards are symmetrically embedded in the light-transmitting strip at the position of the second cavity. A plurality of LED lamp beads are arrayed on the two flexible PCB boards, and the LED lamp beads are located in the second cavity.

[0014] A retaining member is embedded on one side of the light-transmitting strip facing the LED lamp beads, and passes through the light-transmitting strip along the extension direction of the light-transmitting strip. The retaining member can support the plastic deformation of the light-transmitting strip and the light-blocking strip; the two flexible PCB boards, the retaining member and the light-transmitting strip are extruded and pressed together and fixed on the light-transmitting strip through an extruder.

[0015] Beneficial effects of the utility model:

[0016] The utility model provides a light-blocking strip and a reflective layer on the side of the outer edge of the light-transmitting strip facing the back of the LED lamp beads, so that the light originally irradiated on the inner side wall of the light-blocking strip is reflected back to the light-transmitting strip through the reflective layer, so that this part of the light is emitted in a desired direction, thereby effectively reducing light waste, effectively improving the light output efficiency of the light strip, effectively improving the light utilization rate, and effectively improving the overall light intensity of the light strip, thereby achieving 180° single-sided lighting with higher brightness without increasing the number and power of LED lamp beads;

[0017] By burying a retaining member inside the light-transmitting strip that is strong enough to support the light strip and maintain its shape after bending, the light strip can have a large bendability and at the same time achieve plastic deformation through the retaining member, effectively improving the shapeability of the light strip, so that the light strip can be straightened or bent to shape, so that the light strip can achieve rich artistic shapes. At the same time, it can effectively reduce the fixed points of the light strip to maintain complex shapes, which is conducive to improving the efficiency of installing the light strip and improving the aesthetics of the light strip.

[0018] It should be understood that the foregoing general description and the following detailed description are exemplary and explanatory only and are not restrictive of the present application. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] In order to more clearly illustrate the technical solutions of the embodiments of the present invention, the following is a brief introduction to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are only some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative work.

[0020] Figure 1 This is a schematic diagram of a front cross-sectional assembly of a skyline neon light strip in one embodiment of the present application;

[0021] Figure 2 is a schematic exploded view of a front cross-section of a skyline neon light strip in one embodiment of the present application;

[0022] Figure 3 is a schematic diagram of a front cross-sectional assembly of a skyline neon light strip in another embodiment of the present application;

[0023] Figure 4This is a schematic exploded view of a main cross-section of a skyline neon light strip in another embodiment of the present application.

[0024] Reference numerals in the figures are: 1-light-transmitting strip, 101-first cavity, 102-second cavity, 11-diffusion area, 12-reflection area; 2-flexible PCB board; 3-LED lamp bead; 4-light-blocking strip; 5-reflective layer; 6-holding member. DETAILED DESCRIPTION

[0025] The specific embodiments of the present application are further described in detail below in conjunction with the accompanying drawings and examples. The following examples are used to illustrate the present application, but are not intended to limit the scope of the present application. Similarly, the following examples are only some embodiments of the present application and not all embodiments. All other embodiments obtained by those of ordinary skill in the art without making creative work are within the scope of protection of this application.

[0026] In this application, unless otherwise specified or limited, the terms "installed," "connected," "connect," "fixed," etc. should be understood in a broad sense. For example, they can refer to fixed connection, detachable connection, or integration; mechanical connection, electrical connection, or communication; direct connection or indirect connection through an intermediate medium; internal communication between two elements or interaction between two elements, unless otherwise specified. Those skilled in the art will understand the specific meanings of the above terms in this application based on specific circumstances.

[0027] In this application, the concept of "roughly" describes the main features of an overall structure or shape. When describing the shape of an object, it means that the object mainly presents a certain specific shape, but may differ in non-functional details. These detailed differences do not affect the overall characteristics and can therefore be classified as "roughly" a certain shape. For example, when describing a rectangular object, the expression "roughly rectangular" means that the overall shape of the object is rectangular, but there are differences in certain non-functional details. Similarly, when describing a cube, the expression "roughly cubic" means that the overall shape of the object is a cube, but there are differences in certain non-functional details.

[0028] In this application, the terms "one embodiment", "some embodiments", "examples", "specific examples", or "some examples" mean that the specific features, structures, materials or characteristics described in conjunction with the embodiment or example are included in at least one embodiment or example of the present application. In this specification, the schematic representations of the above terms do not necessarily refer to the same embodiment or example. Moreover, the specific features, structures, materials or characteristics described can be combined in any one or more embodiments or examples in a suitable manner. In addition, those skilled in the art can combine and combine different embodiments or examples described in this specification and the features of different embodiments or examples without contradiction.

[0029] The existing one-sided luminous skyline neon light strips have problems such as light emitted by LED beads causing waste, low light output efficiency, and being too soft, which is not conducive to special shapes, low installation efficiency, and poor aesthetics.

[0030] In response to the above problems, the present application makes improvements and innovations and proposes the following embodiments.

[0031] Example 1

[0032] In one embodiment, see Figure 1 、 Figure 2 The present application provides a shapeable skyline neon light strip, comprising a light-transmitting strip 1, a flexible PCB board 2, LED lamp beads 3, a light-blocking strip 4, a reflective layer 5, and a retaining member 6. The light-transmitting strip 1 is an integrally molded light-transmitting cylindrical strip structure. A first cavity 101 is constructed in the middle of the light-transmitting strip 1 and passes through the light-transmitting strip 1 along its extension direction. The flexible PCB board 2 is fixedly embedded in a position on one side of the first cavity 101 on the light-transmitting strip 1. A plurality of LED lamp beads 3 are arrayed on the flexible PCB board 2, and the LED lamp beads 3 are located in the first cavity 101.

[0033] The light-transmitting strip 1 is transparent silicone or plastic mixed with a light diffusing agent, so as to improve the light-transmitting strip 1's diffusion performance on the light emitted by the LED lamp beads 3. The light-blocking strip 4 is opaque silicone or plastic. The light-transmitting strip 1 and the light-blocking strip 4 are integrally formed by double-color extrusion using an extruder. The flexible PCB board 2 and the light-transmitting strip 1 are extruded and pressed together and fixed to the light-transmitting strip 1 by the extruder. In this way, by adopting the method of extruding and pressing the flexible PCB board 2 and the light-transmitting strip 1 together and fixing them to the light-transmitting strip 1 by the extruder, the light-transmitting strip 1 can form a clamping effect on the outer portion of the flexible PCB board 2 located on both sides of the LED lamp beads 3, thereby effectively improving the installation stability of the flexible PCB board 2 in the first cavity 101 of the light-transmitting strip 1 and effectively preventing the flexible PCB board 2 from falling out during the cutting process of the light strip. At the same time, the light-transmitting strip 1 can form a good seal between the flexible PCB board 2 and the LED lamp beads 3 to facilitate dust and water resistance.

[0034] In this embodiment, a light-blocking strip 4 is embedded along the extension direction of the light-transmitting strip 1 on the side of the outer edge of the light-transmitting strip 1 that faces the back of the LED lamp beads 3. A reflective layer 5 is coated along the extension direction of the light-blocking strip 4 between the inner sidewall of the light-transmitting strip 1 and the light-transmitting strip 1. In this way, light emitted by the LED lamp beads 3 is evenly scattered from the exposed cylindrical surface of the light-transmitting strip 1 through the diffusion effect of the light-transmitting strip 1, thereby achieving the illumination of the light strip.

[0035] During the light-emitting process of the light-transmitting strip 1, most of the light emitted in the forward direction by the LED lamp bead 3 is irradiated from the position of the light-transmitting strip 1 on the front of the LED lamp bead 3, and a small part reaches the back of the LED lamp bead 3 under the diffusion and refraction of the light-transmitting strip 1 and irradiates the inner wall of the light-blocking strip 4, while most of the light emitted in the side direction by the LED lamp bead 3 is irradiated on the inner wall of the light-blocking strip 4 on both sides and the back of the LED lamp bead 3, and a small part is irradiated from the position of the light-transmitting strip 1 on the front of the LED lamp bead 3; in this embodiment, by setting a side of the outer edge of the light-transmitting strip 1 facing the back of the LED lamp bead 3 The light-blocking strip 4 and the reflective layer 5 can reflect the light originally directed to the inner wall of the light-blocking strip 4 back to the light-transmitting strip 1 through the reflective layer 5, so that this part of the light is emitted in the desired direction, that is, from the position of the light-transmitting strip 1 located in front of and on the oblique side of the LED lamp beads 3, thereby effectively reducing the waste of this part of the light, effectively improving the light output efficiency of the light strip, effectively improving the light utilization rate, and effectively improving the overall light intensity of the light strip, thereby achieving higher brightness 180° single-sided lighting of the skyline neon light strip without increasing the number and power of the LED lamp beads 3.

[0036] Among them, by arranging the reflective layer 5 between the inner wall of the light-blocking strip 4 and the outer wall of the light-transmitting strip 1, the reflective layer 5 can be prevented from being worn and falling off during transportation, installation and use, thereby effectively ensuring the effectiveness of the reflective layer 5; specifically, the reflective layer 5 is a highly reflective coating, such as a metal oxide reflective coating such as zinc oxide, aluminum oxide, etc., which has a high reflectivity, so as to effectively improve the light reflection efficiency, thereby further improving the light output efficiency of the light strip and improving the overall light intensity of the light strip.

[0037] In some embodiments, the outer walls of the light-transmitting strip 1 and the light-blocking strip 4 are on the same cylindrical surface. This can prevent the light strip from glaring due to the light-transmitting strip 1 protruding outward from the light-blocking strip 4, and can also prevent the light strip from being blocked due to the light-blocking strip 4 protruding outward from the light-transmitting strip 1, and can effectively improve the aesthetics of the overall structure of the light strip.

[0038] In this embodiment, a retaining member 6 is embedded in the light-transmitting strip 1 at a position between the reflective layer 5 and the back of the LED lamp beads 3. The retaining member 6 penetrates the light-transmitting strip 1 along the extension direction of the light-transmitting strip 1. The retaining member 6 and the light-transmitting strip 1 are fixed to the light-transmitting strip 1 by extrusion and pressing by an extruder. The retaining member 6 can support the plastic deformation of the light-transmitting strip 1 and the light-blocking strip 4. In this way, by embedding the retaining member 6 in the light-transmitting strip 1, the retaining member 6 is a metal wire with sufficient strength to support the light strip after bending to maintain the shape of the light strip. Thus, the light strip can have a large bendability and at the same time, the retaining member 6 can realize the light strip's plastic deformation ability, effectively improving the shapeability of the light strip, so that the light strip can be straightened or bent to shape, so that the light strip can achieve rich artistic shapes. At the same time, it can effectively reduce the fixed points of the light strip to maintain complex shapes, which is conducive to improving the efficiency of installing the light strip and improving the aesthetics of the light strip.

[0039] In some embodiments, the light-transmitting strip 1 is divided into a diffusion area 11 and a reflection area 12 by the plane on which its axis lies. The first cavity 101 is located in the reflection area 12, the LED lamp beads 3 are located in the reflection area 12 and face the diffusion area 11, and the light-blocking strip 4 and the reflective layer 5 do not extend beyond the range of the reflection area 12. Therefore, by arranging the flexible PCB board 2, the LED lamp beads 3, the light-blocking strip 4, the reflective layer 5, and the retaining member 6 within the range of the reflection area 12, the LED lamp beads 3 face the diffusion area 11, and thus the light emitted by the LED lamp beads 3 can be fully refracted and diffused by the larger diffusion area 11 of the light-transmitting strip 1. This allows the light emitted by the LED lamp beads 3 to be evenly scattered from the exposed cylindrical surface of the light-transmitting strip 1, effectively improving the luminous uniformity and luminous effect of the light strip.

[0040] In some embodiments, the axes of symmetry of the light-transmitting strip 1, flexible PCB 2, LED lamp beads 3, light-blocking strip 4, reflective layer 5, and retaining member 6 are aligned on the same straight line. This allows the portions of the light strip located on the left and right sides of the LED lamp beads 3 to be evenly distributed, effectively ensuring uniform light emission from the light strip.

[0041] Example 2

[0042] In one embodiment, see Figure 3 、 Figure 4The present application also provides a shapeable skyline neon light strip, comprising the aforementioned light-transmitting strip 1, a flexible PCB board 2, LED lamp beads 3, and a retaining member 6. The light-transmitting strip 1 is an integrally molded light-transmitting cylindrical strip structure. A second cavity 102 is constructed in the center of the light-transmitting strip 1 and passes through the light-transmitting strip 1 along the extension direction of the light-transmitting strip 1. Two flexible PCB boards 2 are symmetrically embedded back to back at the position of the second cavity 102 on the light-transmitting strip 1. A plurality of LED lamp beads 3 are arrayed on the two flexible PCB boards 2, and the LED lamp beads 3 are located in the second cavity 102; a retaining member 6 is buried on one side of the light-transmitting strip 1 facing the LED lamp beads 3 and passing through the light-transmitting strip 1 along the extension direction of the light-transmitting strip 1. The retaining member 6 can support the plastic deformation of the light-transmitting strip 1 and the light-blocking strip 4; the two flexible PCB boards 2, the retaining member 6 and the light-transmitting strip 1 are extruded and pressed together with the light-transmitting strip 1 by an extruder.

[0043] Thus, compared with Example 1, this embodiment eliminates the light-blocking strip 4 and the reflective layer 5, and sets two flexible PCB boards 2 with LED lamp beads 3 installed back to back in the light-transmitting strip 1. The light emitted by the two groups of LED lamp beads 3 is evenly scattered from the cylindrical surface of the light-transmitting strip 1 under the diffusion effect of the light-transmitting strip 1, so as to realize 360° luminescence of the light strip.

[0044] In this embodiment, by adopting a method of extrude, press and fix the two flexible PCB boards 2 and the light-transmitting strip 1 on the light-transmitting strip 1 through an extruder, the light-transmitting strip 1 can form a clamping effect on the outer parts of the two flexible PCB boards 2 located on both sides of the LED lamp beads 3, thereby effectively improving the installation stability of the two flexible PCB boards 2 in the second cavity 102 of the light-transmitting strip 1, and effectively preventing the flexible PCB boards 2 from falling out during the cutting process of the light strip. At the same time, the light-transmitting strip 1 can form a good seal for the two flexible PCB boards 2 and the LED lamp beads 3 to facilitate dust and water prevention.

[0045] In this embodiment, a retaining member 6 is buried inside the light-transmitting strip 1. The retaining member 6 is a metal wire that is strong enough to support the light strip and maintain the shape of the light strip after it is bent. As a result, the light strip can have a large bendability and at the same time, the retaining member 6 can realize the plastic deformation ability of the light strip, effectively improving the shapeability of the light strip, so that the light strip can be straightened or bent to shape, so that the light strip can achieve rich artistic shapes. At the same time, it can effectively reduce the fixed points of the light strip to maintain complex shapes, which is beneficial to improving the efficiency of installing the light strip and improving the aesthetics of the light strip.

[0046] Finally, it should be noted that although the embodiments of the present invention have been shown and described above, it can be understood that the above embodiments are exemplary and cannot be understood as limitations on the present invention. Ordinary technicians in this field can make changes, modifications, replacements and variations to the above embodiments within the scope of the present invention, which should all be included in the scope of protection of this application.

Claims

1. A shapeable skyline neon light strip, characterized by: The invention comprises a light-transmitting strip (1), a flexible PCB (2), LED lamp beads (3), a light-blocking strip (4), a reflective layer (5), and a retaining member (6); the light-transmitting strip (1) is an integrally formed light-transmitting cylindrical strip structure; a first cavity (101) is formed in the middle of the light-transmitting strip (1) and passes through the light-transmitting strip (1) along the extension direction of the light-transmitting strip (1); the flexible PCB (2) is fixedly embedded in the light-transmitting strip (1) at a position on one side of the first cavity (101); a plurality of LED lamp beads (3) are array-mounted on the flexible PCB (2), and the LED lamp beads (3) are located in the first cavity (101); A light-blocking strip (4) is embedded on the side of the outer edge of the light-transmitting strip (1) facing the back of the LED lamp bead (3) along the extension direction of the light-transmitting strip (1), and a reflective layer (5) is coated between the inner side wall of the light-blocking strip (4) and the light-transmitting strip (1) along the extension direction of the light-blocking strip (4); A retaining member (6) is embedded in the light-transmitting strip (1) at a position between the reflective layer (5) and the back surface of the LED lamp bead (3), and passes through the light-transmitting strip (1) along the extension direction of the light-transmitting strip (1). The retaining member (6) can support the plastic deformation of the light-transmitting strip (1) and the light-blocking strip (4).

2. The shapeable skyline neon light strip according to claim 1, characterized in that: The light-transmitting strip (1) is divided into a diffusion zone (11) and a reflection zone (12) with the plane where its axis is located as a boundary, the first cavity (101) is located in the reflection zone (12), the LED lamp bead (3) is located in the reflection zone (12) and directly faces the diffusion zone (11), and the light-blocking strip (4) and the reflective layer (5) do not exceed the range of the reflection zone (12).

3. A shapeable skyline neon light strip according to claim 1 or 2, characterized in that: The light-transmitting strip (1) is transparent silicone or plastic mixed with a light diffusing agent. The light-transmitting strip (1) and the light-blocking strip (4) are integrally formed by double-color extrusion using an extruder. The flexible PCB board (2), the retaining member (6) and the light-transmitting strip (1) are extruded and pressed together and fixed on the light-transmitting strip (1) using an extruder.

4. The shapeable skyline neon light strip according to claim 1, characterized in that: The symmetry axes of the light-transmitting strip (1), the flexible PCB board (2), the LED lamp beads (3), the light-blocking strip (4), the reflective layer (5), and the retaining member (6) are on the same straight line.

5. The shapeable skyline neon light strip according to claim 1, characterized in that: The outer walls of the light-transmitting strip (1) and the light-blocking strip (4) are on the same cylindrical surface.

6. The shapeable skyline neon light strip according to claim 1 or 4, characterized in that: The reflective layer (5) is a high-reflective coating.

7. A shapeable skyline neon light strip, characterized by: The invention comprises a light-transmitting strip (1), a flexible PCB board (2), an LED lamp bead (3), and a retaining member (6) as described in any one of claims 1 to 6, wherein the light-transmitting strip (1) is a light-transmitting cylindrical strip structure of an integral molding structure, a second cavity (102) is constructed at the center of the light-transmitting strip (1) and passes through the light-transmitting strip (1) along the extension direction of the light-transmitting strip (1), two flexible PCB boards (2) are symmetrically embedded in the light-transmitting strip (1) at the position of the second cavity (102), a plurality of the LED lamp beads (3) are array-mounted on the two flexible PCB boards (2), and the LED lamp beads (3) are located in the second cavity (102); A retaining member (6) is embedded in one side of the light-transmitting strip (1) facing the LED lamp bead (3), and passes through the light-transmitting strip (1) along the extension direction of the light-transmitting strip (1). The retaining member (6) can support the plastic deformation of the light-transmitting strip (1) and the light-blocking strip (4); The two flexible PCB boards (2), the retaining member (6) and the light-transmitting strip (1) are fixed on the light-transmitting strip (1) by extrusion and pressing using an extruder.

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