Lamp strip and light-emitting device

Abstract

The utility model relates to the technical field of illumination, in particular to a lamp strip and a light-emitting device.The lamp strip comprises a light-emitting part and a flexible connecting part which are connected with each other, the light-emitting part is used for generating a light source, the flexible connecting part can be bent, a notch is formed in the flexible connecting part, the area of the notch is S1, the area of the flexible connecting part is S2, and S1 / S2 is larger than or equal to 0.2 and smaller than or equal to 0.8; if the ratio of S1 to S2 is too small, the overall rigidity and hardness of the flexible connecting part are too large easily, and the bending difficulty of the flexible connecting part is increased; if the ratio of S1 to S2 is too large, the mechanical strength of the flexible connecting part is too low, and the flexible connecting part is easy to break or tear when being bent. The area ratio of the notch to the flexible connecting part is set in the range, so that the bending difficulty of the lamp strip can be reduced, the lamp strip is ensured to have better mechanical strength and flexibility, the lamp strip is not easy to tilt or break when being bent, and the lamp strip can be better attached to mounting surfaces with different shapes.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of lighting, in particular to a lamp strip and a light emitting device. BACKGROUND

[0002] The lamp strip is a bendable linear light emitting device composed of a plurality of lamp beads installed on a flexible circuit board. In recent years, the lamp strip has been widely used in light emitting devices and display devices such as displays, screens and billboards.

[0003] In the related art, the lamp strip is difficult to bend, and when the lamp strip is attached to a target mounting surface, the bending portion is prone to lifting or breaking, the bending performance is poor, and the normal use of the lamp strip is affected. CONTENT OF THE UTILITY MODEL

[0004] The embodiments of the present application provide a lamp strip and a light emitting device, which can solve the technical problem that the lamp strip is difficult to bend, the bending portion is prone to lifting or breaking when the lamp strip is attached to a target mounting surface, the bending performance is poor, and the normal use of the lamp strip is affected.

[0005] In a first aspect, the embodiments of the present application provide a lamp strip, which comprises a light emitting portion and a flexible connecting portion connected to each other, the light emitting portion is used to generate a light source, and the flexible connecting portion can be bent;

[0006] A notch is formed on the flexible connecting portion, the area of the notch is S1, the area of the flexible connecting portion is S2, and 0.2≤S1 / S2≤0.8.

[0007] In an embodiment, 0.3≤S1 / S2≤0.5; and / or

[0008] The input voltage of the lamp strip is 5V-24V; and / or

[0009] The average thickness of the lamp strip is 2.6mm-3.0mm.

[0010] In an embodiment, the number of the light emitting portions is a plurality, and two adjacent light emitting portions are connected by the flexible connecting portion. Each light emitting portion is provided with a light source piece, and the spacing between adjacent light source pieces is 5mm-70mm.

[0011] In an embodiment, the spacing between adjacent light source pieces is 8mm-34mm

[0012] In an embodiment, the lamp strip comprises a flexible protective layer, and the flexible protective layer covers at least one of the flexible connecting portion and the light emitting portion.

[0013] The thickness of the flexible protective layer is 0.9mm-1.0mm.

[0014] In an embodiment, the light-emitting part comprises a first flexible circuit board and a light source element, the light source element has pins, the pins are electrically connected with the first flexible circuit board, at least part of the pins are located in the flexible protective layer;

[0015] The flexible connecting part has a second flexible circuit board, the first flexible circuit board and the second flexible circuit board are integrally formed.

[0016] In an embodiment, the lamp strip further comprises a reinforcing layer, the reinforcing layer is arranged on a side of the first flexible circuit board and / or the second flexible circuit board away from the flexible protective layer.

[0017] In an embodiment, the lamp strip further comprises a sticking layer, the sticking layer is arranged on a side of the first flexible circuit board and / or the second flexible circuit board away from the flexible protective layer.

[0018] In an embodiment, the thickness of the sticking layer is 0.2mm-1.2mm; and / or

[0019] The material of the sticking layer is double-sided adhesive tape; and / or

[0020] The area of the sticking layer is S3, the sum of the areas of the first flexible circuit board and the second flexible circuit board is S4, the ratio between S3 and S4 is 1:1; and / or

[0021] A release paper is arranged on a side of the sticking layer away from the light source element.

[0022] In a second aspect, an embodiment of the present application provides a light-emitting device, comprising a connecting end and the lamp strip as described above, the connecting end is used for connecting a cable and the lamp strip.

[0023] The beneficial effects of the embodiments of the present application are as follows:

[0024] The lamp strip in the embodiment of the present application comprises light-emitting parts and flexible connecting parts connected with each other, the light-emitting parts are used to generate light sources, and the flexible connecting parts can be bent, so that the lamp strip can be bent into different shapes according to requirements to fit various contour installation surfaces, improving the adaptability and flexibility of the lamp strip. In addition, notches are formed on the flexible connecting parts, the notches can reduce the mechanical strength of the flexible connecting parts, improve the flexibility of the flexible connecting parts, disperse stress during bending, so that the flexible connecting parts are more easily bent, reducing the difficulty of bending the lamp strip, when the lamp strip is fitted to the target installation surface, the flexible connecting parts can better fit the target installation surface, and the bent part of the flexible connecting part is not easy to be raised. The area of the notch is S1, the area of the flexible connecting part is S2, and 0.2≤S1 / S2≤0.8; if the ratio of S1 to S2 is too small, the area of the notch is too small, the area of the flexible connecting part is too large, the overall rigidity and hardness of the flexible connecting part is too large, and the bending difficulty of the flexible connecting part is increased; if the ratio of S1 to S2 is too large, the area of the notch is too large, the area of the flexible connecting part is too small, the mechanical strength of the flexible connecting part is too low, and the flexible connecting part is easily broken or torn during bending. By setting the area ratio of the notch to the flexible connecting part in the above range, the bending difficulty of the lamp strip can be reduced, and the lamp strip also has good mechanical strength and flexibility, and the lamp strip is not easy to be raised or broken during bending. BRIEF DESCRIPTION OF DRAWINGS

[0025] In order to more clearly illustrate the technical solutions in the embodiments of the present application, the drawings needed in the embodiment description will be briefly introduced. Obviously, the drawings in the following description are only some embodiments of the present application, and other drawings can be obtained by those skilled in the art without creative labor.

[0026] Figure 1 is a schematic diagram of the three-dimensional structure of the lamp strip provided by the embodiment of the present application;

[0027] Figure 2 is a front view of the lamp strip provided by the embodiment of the present application;

[0028] Figure 3 is a top view of the lamp strip provided by the embodiment of the present application;

[0029] Figure 4 is a sectional view of the lamp strip provided by the embodiment of the present application;

[0030] Figure 5 is an enlarged view of A of Figure 4

[0031] REFERENCE SIGNS:

[0032] ​100, light strip; 1, light emitting part; 11, light source piece; 12, first flexible circuit board; 2, flexible connecting part; 21, notch; 3, flexible protective layer; 4, reinforcing layer; 5, adhesive layer; 51, release paper. DETAILED DESCRIPTION

[0033] The technical solutions in the embodiments of the present application will be clearly and completely described below with reference to the drawings in the embodiments of the present application. Obviously, the described embodiments are only part of the embodiments of the present application, rather than all the embodiments of the present application. Based on the embodiments in the present application, all other embodiments obtained by those skilled in the art without creative work fall within the scope of protection of the present application. In addition, it should be understood that the specific embodiments described herein are only used to illustrate and explain the present application, and are not used to limit the present application. In the present application, the orientation words such as "upper" and "lower" generally refer to the upper and lower in the actual use or working state of the device, and specifically refer to the direction of the drawing surface in the drawings; and "inner" and "outer" refer to the outline of the device.

[0034] Reference should be made to Figures 1 to 3The lamp strip 100 of the present application comprises light-emitting parts 1 and flexible connecting parts 2 connected with each other, the light-emitting parts 1 are used to generate light sources, and the flexible connecting parts 2 can be bent, so that the lamp strip 100 can be bent into different shapes according to requirements to fit various contour installation surfaces, improving the adaptability and flexibility of the lamp strip 100. In addition, the flexible connecting part 2 is provided with a notch 21, which can reduce the mechanical strength of the flexible connecting part 2, improve the flexibility of the flexible connecting part 2, disperse the stress during bending, so that the flexible connecting part 2 is more easily bent, reducing the difficulty of bending the lamp strip 100. When the lamp strip 100 is fitted to the target installation surface, the flexible connecting part 2 can better fit the target installation surface, and the bent part of the flexible connecting part 2 is not easy to be raised. The area of the notch 21 is S1, the area of the flexible connecting part 2 is S2, and 0.2≤S1 / S2≤0.8. If the ratio of S1 to S2 is too small, it is easy to cause the area of the notch 21 to be too small, the area of the flexible connecting part 2 to be too large, the overall rigidity and hardness of the flexible connecting part 2 to be too large, and the bending difficulty of the flexible connecting part 2 to be increased. If the ratio of S1 to S2 is too large, it is easy to cause the area of the notch 21 to be too large, the area of the flexible connecting part 2 to be too small, the mechanical strength of the flexible connecting part 2 to be too low, and the flexible connecting part 2 to be easily broken or torn during bending. In addition, the area of the flexible connecting part 2 is too small, which is easy to cause the available space of the flexible connecting part 2 to be reduced, and the circuit wiring on the flexible connecting part 2 to be limited. By setting the area ratio of the notch 21 to the flexible connecting part 2 within the above range, the bending difficulty of the lamp strip 100 can be reduced, and the lamp strip 100 has good mechanical strength and flexibility, so that the lamp strip 100 is not easy to be raised or broken during bending, and the lamp strip 100 can better fit installation surfaces of different shapes. At the same time, it is ensured that the flexible connecting part 2 has enough space for arranging circuits.

[0035] In the present embodiment, the value of S1 / S2 can be any one of 0.2, 0.3, 0.4, 0.5, 0.6, 0.7, 0.8 or a range between any two of them, which is not limited herein. In a preferred embodiment, 0.3≤S1 / S2≤0.5.

[0036] In the present embodiment, the number of light-emitting parts 1 and flexible connecting parts 2 is not limited, the number of light-emitting parts 1 can be one, two or more than two; and the number of flexible connecting parts 2 can be one, two or more than two.

[0037] In the present embodiment, the shape of the notch 21 is not limited, the shape of the notch 21 can be rectangular, circular, semicircular, oval, W-shaped, V-shaped or other shapes; the number of notches 21 is also not limited, the number of notches 21 can be one, two or more than two; and the position of the notch 21 on the flexible connecting part 2 is also not limited, the notch 21 can be located at the edge of the flexible connecting part 2, or can be arranged at the middle part of the flexible connecting part 2.

[0038] In a specific implementation, the lamp strip 100 can be installed on the back of a television screen or a computer screen. Specifically, first, take any point on the edge of the back of the screen as a starting point, fix one end of the lamp strip 100 at the starting point, and then paste the lamp strip 100 along the edge of the screen on the mounting surface of the screen. Since the lamp strip 100 has good flexibility and mechanical strength, the lamp strip 100 can be well fitted to the mounting surface of the screen after being bent at the four corners of the screen. The lamp strip 100 is not prone to warping and breaking, and does not need to be split into multiple segments to avoid the mounting surface at the corners of the screen. The lamp strip 100 can be distributed along the edge of the screen in a complete and continuous manner, avoiding the problem of discontinuous light effect caused by segmented installation, and improving the smoothness of light effect and overall visual effect.

[0039] In an embodiment, the input voltage of the lamp strip 100 is 5V-24V. The input voltage of the lamp strip 100 is relatively low, and the current flowing through the lamp strip 100 is relatively small, which can reduce energy loss and improve the overall energy efficiency of the lamp strip 100, making the lamp strip 100 suitable for long-term use. Alternatively, the input voltage of the lamp strip 100 can be any one of 5V, 8V, 10V, 12V, 15V, 18V, 20V, 24V, or a range between any two of them, which is not limited herein. In a specific embodiment, the area of the notch 21 on the flexible connection part 2 is S1, the area of the flexible connection part 2 is S2, the value of S1 / S2 is 0.36, and the input voltage of the lamp strip 100 is 5V or 12V.

[0040] In an embodiment, referring to Figures 1 to 3 , the number of light emitting parts 1 is multiple, and two adjacent light emitting parts 1 are connected by a flexible connection part 2. In this embodiment, multiple light emitting parts 1 can provide stronger light and make light distribution more uniform, reducing the difference between light and dark and improving the lighting effect. In addition, when part of the light emitting parts 1 are damaged, the remaining light emitting parts 1 can still work normally, improving the reliability of the lamp strip 100.

[0041] In this embodiment, the number of light emitting parts 1 can be two, three or more than three. Multiple light emitting parts 1 can be arranged at equal intervals along the length direction of the lamp strip 100, or multiple light emitting parts 1 can be arranged at unequal intervals along the length direction of the lamp strip 100, which is not limited herein.

[0042] In an embodiment, referring to Figure 1 and Figure 2 , each light emitting part 1 is provided with a light source 11, and the light source 11 is used to generate light. In this embodiment, the type of light source 11 is not limited, and the light source 11 can be an LED lamp bead, an OLED lamp bead, a fluorescent lamp bead, a neon lamp bead, a halogen lamp bead or other types of lamp beads. The spacing between adjacent light sources 11 is also not limited and can be flexibly set according to actual needs.

[0043] In an embodiment, the distance between the adjacent light source pieces 11 is 5mm-70mm, preferably, the distance between the adjacent light source pieces 11 is 8mm-34mm. Optionally, the distance between the adjacent light source pieces 11 can be any one of 5mm, 8mm, 15mm, 20mm, 30mm, 34mm, 40mm, 50mm, 60mm, 70mm or a range between any two of them, which is not limited herein. In the embodiment, if the distance between the adjacent light source pieces 11 is too small, in the case of the same length of the light strip 100, the number of light source pieces 11 will increase, the cost will increase, and at the same time, the light will overlap, resulting in uneven lighting, bright spots or dark areas, and affecting the atmosphere effect; if the distance between the adjacent light source pieces 11 is too large, in the case of the same length of the light strip 100, the number of light source pieces 11 will decrease, and the overall brightness will decrease, at the same time, the large distance between the light source pieces 11 will make the light strip 100 look discontinuous, affecting the appearance and decoration effect.

[0044] In an embodiment, the average thickness of the light strip 100 is 2.6mm-3.0mm. Optionally, the average thickness of the light strip 100 can be any one of 2.6mm, 2.7mm, 2.8mm, 2.9mm, 3.0mm or a range between any two of them, which is not limited herein. In the embodiment, if the average thickness of the light strip 100 is too large, the hardness of the light strip 100 will increase, and then the bending difficulty of the light strip 100 will increase, resulting in the inconvenience of the installation of the light strip 100; if the average thickness of the light strip 100 is too small, the mechanical strength of the light strip 100 will decrease, the light strip 100 is easy to be damaged in the process of installation or use, at the same time, the light strip 100 will be too soft to be fixed and installed, and the light strip 100 is easy to be broken.

[0045] In an embodiment, referring to Figure 4 and Figure 5The lamp strip 100 comprises a flexible protective layer 3 covering at least one of the flexible connecting portion 2 and the light-emitting portion 1. In the embodiment, the flexible protective layer 3 has a certain flexibility, which can protect the flexible connecting portion 2 and the light-emitting portion 1, reduce the daily collision and scratching of the flexible connecting portion 2 and the light-emitting portion 1, and meanwhile, the flexible protective layer 3 has a certain flexibility, which is beneficial to the bending of the flexible connecting portion 2. In the embodiment, the material type of the flexible protective layer 3 is not limited, and the flexible protective layer 3 can be made of transparent waterproof material. The transparent flexible protective layer 3 will not block or scatter light, so that the light is softer and more uniform, and the light efficiency and brightness of the lamp strip 100 are not affected. Meanwhile, the damage of the lamp strip 100 caused by environmental factors such as water vapor and dust can be reduced. Alternatively, the material of the flexible protective layer 3 can be selected from one or more of silicone, epoxy resin, polyurethane, polycarbonate, polyvinyl chloride, etc. In the embodiment, the thickness of the flexible protective layer 3 is not limited and can be flexibly set according to actual needs.

[0046] In an embodiment, the thickness of the flexible protective layer 3 is 0.9mm-1.0mm. Alternatively, the average thickness of the lamp strip 100 can be any one of 0.90mm, 0.92mm, 0.94mm, 0.96mm, 0.98mm, 1.00mm, or a range between any two of them, which is not limited herein. In the embodiment, if the thickness of the flexible protective layer 3 is too small, the flexible protective layer 3 cannot completely cover the flexible connecting portion 2 and / or the light-emitting portion 1, and the waterproof effect and protection effect of the flexible protective layer 3 are not ideal. If the thickness of the flexible protective layer 3 is too large, the material cost will increase, the lamp strip 100 will become hard, the flexibility of the lamp strip 100 will be reduced, the lamp strip 100 will be difficult to bend and adapt to complex shapes, and meanwhile, the volume and weight of the lamp strip 100 will increase, which makes the lamp strip 100 more difficult to operate and fix during installation.

[0047] In an embodiment, referring to Figure 4 and Figure 5 , the light-emitting portion 1 comprises a first flexible circuit board 12 and a light source 11, the light source 11 has pins electrically connected with the first flexible circuit board 12, and at least part of the pins are located in the flexible protective layer 3. In the embodiment, the pins of the light source 11 can be partially located in the flexible protective layer 3, or all the pins can be located in the flexible protective layer 3, which is not limited herein. Preferably, the pins of the light source 11 are completely located in the flexible protective layer 3. The flexible protective layer 3 can wrap the pins to protect the pins, effectively reduce the contact of moisture and humidity with the pins, enhance the waterproof performance of the lamp strip 100, prolong the service life of the lamp strip 100, and meanwhile, reduce the risk of electric shock and improve the safety in use.

[0048] In an embodiment, the flexible connection portion 2 has a second flexible circuit board (not shown in the figure), and the first flexible circuit board 12 and the second flexible circuit board are integrally formed. The first flexible circuit board 12 and the second flexible circuit board are integrally formed, which can reduce the assembly steps, simplify the manufacturing process, and at the same time, can reduce the connection points and welding points between the flexible circuit boards, reduce the resistance and signal loss, and improve the overall reliability of the light strip 100.

[0049] In an embodiment, referring to Figure 4 and Figure 5 , the light strip 100 further comprises a reinforcing layer 4, which is arranged on the side of the first flexible circuit board 12 and / or the second flexible circuit board away from the flexible protective layer 3. The reinforcing layer 4 can improve the mechanical strength of the first flexible circuit board 12 and / or the second flexible circuit board, and the first flexible circuit board 12 and / or the second flexible circuit board are not easy to break. In the present embodiment, the position of the reinforcing layer 4 is not limited, and the reinforcing layer 4 can be arranged at both ends of the light strip 100 or in the middle of the light strip 100. The material type of the reinforcing layer 4 is not limited, and the material of the reinforcing layer 4 can be one or more of polyimide, polyester, polytetrafluoroethylene, polyurethane, etc.

[0050] In an embodiment, referring to Figure 4 and Figure 5 , the light strip 100 further comprises a sticking layer 5, which is arranged on the side of the first flexible circuit board 12 and / or the second flexible circuit board away from the flexible protective layer 3. In the present embodiment, the sticking layer 5 has certain adhesion, and the light strip 100 can be directly pasted on the target mounting surface of the billboard, display screen or other device through the sticking layer 5, without the need to use additional fixing tools or glue, reducing the installation time and material cost, and simplifying the installation process. In the present embodiment, the type of the sticking layer 5 is not limited, and the sticking layer 5 can be double-sided tape. The type of the double-sided tape is not limited, and the double-sided tape can be ordinary double-sided tape, foam double-sided tape, non-woven fabric double-sided tape or other types of double-sided tape.

[0051] In an embodiment, the thickness of the sticking layer 5 is 0.2mm-1.2mm. Optionally, the thickness of the sticking layer 5 can be any one of 0.2mm, 0.4mm, 0.6mm, 0.8mm, 1.0mm, 1.2mm or a range between any two of them, which is not limited herein. In the present embodiment, if the thickness of the sticking layer 5 is too large, it is easy to cause material waste of the sticking layer 5; if the thickness of the sticking layer 5 is too small, it is easy to cause insufficient buffering performance and adhesion of the sticking layer 5, and the fixing effect of the sticking layer 5 on the light strip 100 is not ideal.

[0052] In a preferred embodiment, the material of the adhesive layer 5 is a foam double-sided tape. The foam double-sided tape has good weather resistance and stable performance under different environmental conditions, and is not prone to aging, cracking or loss of adhesion. In addition, the foam double-sided tape has strong adhesion and can be firmly attached to various surfaces, can withstand relatively large external forces, and is not prone to falling off or opening during use. In addition, the foam double-sided tape has good cushioning performance and can provide cushioning for the light strip 100 to reduce the risk of damage.

[0053] In an embodiment, referring to Figure 5 , the side of the adhesive layer 5 away from the light source member 11 is provided with a release paper 51. The release paper 51 can effectively prevent the adhesive layer 5 from being exposed to the air, thereby preventing the adhesion of the adhesive layer 5 from being reduced due to dust, moisture or oxidation. At the same time, the release paper 51 can prevent the adhesive layer 5 from accidentally adhering to other objects before installation.

[0054] In an embodiment, the area of the adhesive layer 5 is S3, the sum of the areas of the first flexible circuit board 12 and the second flexible circuit board is S4, and the ratio between S3 and S4 is 1:1. In this embodiment, if the value of S3 / S4 is too large, the area of the adhesive layer 5 is likely to be too large, and the adhesive layer 5 is likely to extend beyond the edges of the first flexible circuit board 12 and / or the second flexible circuit board. The adhesive layer 5 extending out is likely to adhere to other debris. If the value of S3 / S4 is too small, the area of the adhesive layer 5 is likely to be too small, resulting in insufficient adhesion of the adhesive layer 5, and the light strip 100 is likely to loosen or detach from the target installation surface after installation, affecting the use effect.

[0055] In a second aspect, the embodiments of the present application provide a light emitting device, which comprises a connection end and the light strip 100 as described above, and the connection end is used to connect a cable and the light strip 100. In this embodiment, the cable can be a data cable, a power cable or other types of conductive wires, which are not limited here.

[0056] The above has introduced the embodiments of the present application in detail, and the specific examples have been applied to describe the principles and implementation modes of the present application. The above embodiment descriptions are only used to help understand the method of the present application and its core idea; at the same time, for those skilled in the art, according to the idea of the present application, the specific implementation mode and application range will be changed, and the above description should not be understood as a limitation of the present application.

Claims

1. A light strip, characterized in that, The lamp strip comprises light-emitting parts and flexible connecting parts, the light-emitting parts are used to generate light sources, and the flexible connecting parts can be bent; A notch is arranged on the flexible connecting part, the area of the notch is S1, the area of the flexible connecting part is S2, and 0.2≤S1 / S2≤0.

8.

2. The lamp strip according to claim 1, wherein, 0.3≤S1 / S2≤0.5; and / or The input voltage of the lamp strip is 5V-24V; and / or The average thickness of the lamp strip is 2.6mm-3.0mm.

3. The lamp strip according to claim 1 or 2, wherein, The number of the light-emitting parts is multiple, two adjacent light-emitting parts are connected by the flexible connecting part, each light-emitting part is provided with a light source piece, and the distance between two adjacent light source pieces is 5mm-70mm.

4. The light strip of claim 3, wherein, The distance between two adjacent light source pieces is 8mm-34mm.

5. The lamp strip according to claim 1 or 2, wherein, The lamp strip comprises a flexible protective layer, and the flexible protective layer covers at least one of the flexible connecting part and the light-emitting part; The thickness of the flexible protective layer is 0.9mm-1.0mm.

6. The lamp strip according to claim 5, wherein, The light-emitting part comprises a first flexible circuit board and a light source piece, the light source piece has a pin, the pin is electrically connected with the first flexible circuit board, and at least part of the pin is located in the flexible protective layer; The flexible connecting part has a second flexible circuit board, and the first flexible circuit board and the second flexible circuit board are integrally formed.

7. The lamp strip according to claim 6, wherein, The lamp strip further comprises a reinforcing layer, and the reinforcing layer is arranged on the side of the first flexible circuit board and / or the second flexible circuit board away from the flexible protective layer.

8. The lamp strip according to claim 6, wherein, The lamp strip further comprises a sticking layer, and the sticking layer is arranged on the side of the first flexible circuit board and / or the second flexible circuit board away from the flexible protective layer.

9. The lamp strip according to claim 8, wherein, The thickness of the sticking layer is 0.2mm-1.2mm; and / or The material of the sticking layer is double-sided adhesive; and / or The area of the sticking layer is S3, the sum of the areas of the first flexible circuit board and the second flexible circuit board is S4, and the ratio between S3 and S4 is 1:1; and / or The side of the sticking layer away from the light source piece is provided with a release paper.

10. A light-emitting device, characterized in that, The lamp strip comprises a connecting end and a lamp strip according to any one of claims 1 to 9, and the connecting end is used to connect a cable and the lamp strip.

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