LED lighting effect enhancing structure for printing FPC

Abstract

The utility model relates to the technical field of FPCs (Flexible Printed Circuit), in particular to an LED (Light Emitting Diode) luminous efficiency enhancing structure for printing an FPC, which comprises a first protective layer for printing the FPC, a luminous efficiency enhancing ink layer for refracting and scattering light, and a second protective layer for protecting the luminous efficiency enhancing ink layer, the second protective layer is connected to one side of the luminous efficiency enhancing ink layer, and the first protective layer is connected to the other side of the luminous efficiency enhancing ink layer relative to the second protective layer; the first protection layer is provided with an FPC printing layer used for installing an LED lamp and a first protection film used for protecting the FPC printing layer. The FPC printing layer is connected to the first protective film and connected to the lighting effect enhancing ink layer through the first protective film to refract and scatter light generated by the LED lamp. According to the scheme, the design that the refraction structure is additionally arranged is adopted, and the effects of improving the brightness of the LED lamp and improving the uniformity of LED lamplight are achieved.

Description

TECHNICAL FIELD

[0001] The utility model belongs to the technical field of FPC, especially relates to a LED light effect enhancement structure for printing FPC. BACKGROUND

[0002] In recent years, flexible electronic technology has rapidly emerged, covering flexible display, wearable devices, flexible lighting, medical electronics and other fields. These applications have higher requirements for the performance of FPC (flexible printed circuit board), especially in terms of light efficiency; the FPC in the prior art has no light efficiency enhancement structure or a relatively complex structure, which cannot meet the requirements of FPC for high brightness and uniform light emission, therefore, the utility model provides a new technical scheme. UTILITY MODEL CONTENT

[0003] The utility model discloses a LED light effect enhancement structure for printing FPC, adopts the design of increasing the light refraction structure, reaches the effect of improving LED lamp brightness and improving LED light uniformity.

[0004] Based on this, the utility model provides a LED light effect enhancement structure for printing FPC, including:

[0005] The first protective layer for printing FPC, the light effect enhancement ink layer for the refraction and scattering of light, the second protective layer for protecting the light effect enhancement ink layer;

[0006] The second protective layer is connected on one side of the light effect enhancement ink layer, and the first protective layer is connected on the other side of the light effect enhancement ink layer relative to the second protective layer;

[0007] The first protective layer is provided with the FPC printing layer for installing LED lamp, and the first protective film for protecting the FPC printing layer; The FPC printing layer is connected on the first protective film and is connected on the light effect enhancement ink layer through the first protective film to refract and scatter the light generated by LED lamp.

[0008] The LED light effect enhancement structure for printing FPC as described above, the light effect enhancement ink layer is the white ink layer.

[0009] The LED light effect enhancement structure for printing FPC as described above, the light effect enhancement ink layer thickness range is 2-50 μm.

[0010] The LED light effect enhancement structure for printing FPC as described above, the first protective film is the PI layer or PET layer.

[0011] The LED light efficiency enhancement structure for printing FPC has the FPC printing layer being a conductive silver paste layer, and the conductive silver paste layer can be connected on the first protective film through screen printing or inkjet printing.

[0012] The LED light efficiency enhancement structure for printing FPC has the first protective film having a thickness ranging from 12.5 to 100 mu m.

[0013] The LED light efficiency enhancement structure for printing FPC has the first protective film being a white protective film or a black protective film.

[0014] The LED light efficiency enhancement structure for printing FPC has the second protective layer being a black PI layer or a black PET layer.

[0015] The LED light efficiency enhancement structure for printing FPC has the second protective layer having a thickness ranging from 4 to 100 mu m.

[0016] The LED light efficiency enhancement structure for printing FPC has the first protective film being connected on the light efficiency enhancement ink layer through heat pressing.

[0017] The embodiment of the present application has the following beneficial effects:

[0018] 1. The present application adopts the design of adding a light refraction structure, the second protective layer is connected on one side of the light efficiency enhancement ink layer, the first protective layer is connected on the other side of the light efficiency enhancement ink layer relative to the second protective layer, the FPC printing layer is connected on the first protective film by arranging the FPC printing layer and the first protective film on the first protective layer, the first protective film is connected on the light efficiency enhancement ink layer, so that the light emitted by the LED lamp installed on the FPC printing layer is scattered and refracted by the light efficiency enhancement ink layer to enhance the light effect, thereby improving the brightness of the LED lamp and the uniformity of the LED light. BRIEF DESCRIPTION OF DRAWINGS

[0019] 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.

[0020] Figure 1 The structure of the present application is shown in the schematic diagram.

[0021] In the figure: 1-first protective layer, 11-FPC printing layer, 12-first protective film; 2-light efficiency enhancement ink layer; 3-second protective layer. Detailed Implementation

[0022] The technical solutions of the present utility model will be clearly and completely described below with reference to the accompanying drawings of the embodiments. Obviously, the described embodiments are only some embodiments of the present utility model, and not all embodiments. Based on the embodiments of the present utility model, all other embodiments obtained by those of ordinary skill in the art without creative effort are within the protection scope of the present utility model.

[0023] like Figure 1 As shown, this embodiment of the present invention provides an LED luminous efficacy enhancement structure for printed FPCs, comprising:

[0024] A first protective layer 1 for printing FPC, a light-enhancing ink layer 2 for light refraction and scattering, and a second protective layer 3 for protecting the light-enhancing ink layer 2; the second protective layer 3 is connected to one side of the light-enhancing ink layer 2, and the first protective layer 1 is connected to the other side of the light-enhancing ink layer 2 opposite to the second protective layer 3, so as to protect the light-enhancing ink layer 2; the first protective layer 1 is provided with an FPC printing layer 11 for mounting LED lights and a first protective film 12 for protecting the FPC printing layer 11; the FPC printing layer 11 is connected to the first protective film 12, and is connected to the light-enhancing ink layer 2 through the first protective film 12 to refract and scatter the light generated by the LED lights, so as to enhance the lighting effect of the LED lights.

[0025] Specifically, the light-enhancing ink layer 2 is a white ink layer, and the white ink layer contains nano-sized particles. These particles can further optimize the refraction and scattering effects of light, thereby making the light more evenly distributed and enhancing the lighting effect of the LED lamp. The white ink layer is preferably coated on the second protective layer 3 by a doctor blade coating method and then dried or cured to increase the coating thickness of the white ink layer.

[0026] Further, the light efficiency enhancement ink layer 2 has a thickness range of 2-50 μm, and a corresponding thickness range can be selected according to actual conditions to enhance the applicability of the light efficiency enhancement structure; first, when the thickness of the light efficiency enhancement ink layer 2 is 2-10 μm, the light efficiency enhancement ink layer 2 is applicable to light and thin equipment to provide efficient light refraction and scattering effects while maintaining the light and thin nature of the overall structure; second, when the thickness of the light efficiency enhancement ink layer 2 is 10-20 μm, the light efficiency enhancement ink layer 2 has optimal light efficiency enhancement performance and can significantly improve the uniformity of light distribution and enhance brightness; third, when the thickness of the light efficiency enhancement ink layer 2 is 20-30 μm, the light efficiency enhancement ink layer 2 can provide stronger light reflection and scattering capabilities and is applicable to display equipment that requires high brightness and high contrast; and fourth, when the thickness of the light efficiency enhancement ink layer 2 is 30-50 μm, the light efficiency enhancement ink layer 2 has better durability and scratch resistance and is applicable to application scenarios that require high wear resistance.

[0027] Further, the first protective film 12 is a PI layer or a PET layer to enhance the applicability of the light efficiency enhancement structure; when the first protective film 12 is made of PI material, the PI material has high heat resistance and high mechanical strength and is applicable to high-temperature environments or application scenarios that require high mechanical stability, thereby effectively protecting the FPC printing layer 11 from high temperature and external force damage; when the first protective film 12 is made of PET material, the PET material has good flexibility, transparency, and wear resistance and is applicable to equipment that requires light and thin and transparent protection, thereby effectively protecting the FPC printing layer 11 and prolonging the service life of the first protective film 12.

[0028] Further, the FPC printing layer 11 is a conductive silver paste layer, and the conductive silver paste layer can be connected to the first protective film 12 through screen printing or inkjet printing; the conductive silver paste layer is composed of high-purity silver powder, an organic binder, and an additive and has good oxidation resistance and corrosion resistance, thereby maintaining stable conductive performance in harsh environments and facilitating the convenience of welding LED lamps; in the embodiment of the utility model, the conductive silver paste layer preferably uses a screen printing process to realize high-precision printing with a line width as low as 50 μm, thereby improving the printing accuracy of the FPC printing layer 11.

[0029] Further, the thickness of the first protective film 12 ranges from 12.5 μm to 100 μm, and a corresponding thickness range can be selected according to actual conditions to enhance the applicability of the light efficiency enhancement structure; first, when the first protective film 12 is made of PI material and the thickness ranges from 25 μm to 75 μm, the first protective film 12 is applicable to application scenarios that require high heat resistance and high mechanical strength to protect the FPC printing layer 11 from high temperature and external force damage; and second, when the first protective film 12 is made of PET material and the thickness ranges from 12.5 μm to 100 μm, the first protective film 12 has good flexibility, transparency, and wear resistance to facilitate application to equipment that requires light and thin and transparent protection.

[0030] Further, the first protective film 12 is a white protective film or a black protective film, and a corresponding color protective film can be selected according to actual conditions to enhance the applicability of the light efficiency enhancement structure; the white protective film has high reflectivity, can effectively reflect light, reduces light absorption, and is suitable for application scenarios requiring high brightness and high reflectivity; the black protective film has high absorption, can effectively absorb light, reduces light reflection and scattering, and is suitable for application scenarios requiring high contrast and low reflection; in the embodiment of the utility model, the first protective film 12 is preferably a white protective film to achieve the effect of improving the brightness of the LED lamp and improving the uniformity of the LED light.

[0031] Further, the second protective layer 3 is a black PI layer or a black PET layer to protect the FPC printing layer 11 from high temperature and external force damage, and the black appearance can effectively absorb excess light and absorb a certain amount of heat, thereby reducing external light interference and protecting internal electronic components or structures from high temperature environment to improve overall stability and durability.

[0032] Further, the thickness of the second protective layer 3 is 4-100 μm, and in the embodiment of the utility model, the thickness of the second protective layer 3 can be selected as needed; when the light efficiency enhancement structure is applied in a high durability device, the thickness of the second protective layer 3 is preferably 75-100 μm; when the light efficiency enhancement structure is applied in a light and thin device, the thickness of the second protective layer 3 is preferably 4-12.5 μm to enhance the applicability of the light efficiency enhancement structure.

[0033] Further, the first protective film 12 is connected to the light efficiency enhancement ink layer 2 by hot pressing to ensure the uniformity and reliability of the connection through the uniform distribution of pressure in the hot pressing process, thereby facilitating the extension of the service life of the light efficiency enhancement structure and the mass production of the factory.

[0034] It should be understood that the terms "first", "second" and the like are used in the utility model to describe various information, but these information should not be limited to these terms, and these terms are only used to distinguish the same type of information from each other. For example, without departing from the scope of the utility model, the "first" information can also be referred to as "second" information, and similarly, the "second" information can also be referred to as "first" information. In addition, the orientation or position relationship indicated by the terms "center", "upper", "lower", "left", "right", "vertical", "horizontal", "inner", "outer" and the like is based on the orientation or position relationship shown in the drawings, and is only for the convenience of describing the utility model and simplifying the description, and is not intended to indicate or imply that the indicated device or element must have a particular orientation, be constructed and operated in a particular orientation, therefore it cannot be understood as a limitation on the utility model.

[0035] The above is the preferred embodiment of the present application, it should be noted that, for those skilled in the ordinary in the art, without departing from the principles of the present application, can make a number of improvements and deformation, these improvements and deformation also considered as the protection scope of the present application.

Claims

1. An LED light efficiency enhancement structure for printed FPC, characterized by, Comprise: A first protective layer (1) for printing FPC, a light effect enhancement ink layer (2) for refraction and scattering of light, a second protective layer (3) for protecting the light effect enhancement ink layer (2); The second protective layer (3) is connected on one side of the light effect enhancement ink layer (2), and the first protective layer (1) is connected on the other side of the light effect enhancement ink layer (2) opposite to the second protective layer (3); The first protective layer (1) is provided with an FPC printing layer (11) for mounting LED lamp and a first protective film (12) for protecting the FPC printing layer (11); the FPC printing layer (11) is connected on the first protective film (12) and the first protective film (12) is connected on the light effect enhancement ink layer (2) to refract and scatter the light generated by LED lamp.

2. The LED light efficiency enhancement structure for printing FPC according to claim 1, wherein, The light effect enhancement ink layer (2) is a white ink layer.

3. The LED light efficiency enhancement structure for printing FPC according to claim 2, wherein, The thickness of the light effect enhancement ink layer (2) ranges from 2 to 50 μm.

4. The LED light efficiency enhancement structure for printing FPC according to claim 1, wherein, The first protective film (12) is a PI layer or a PET layer.

5. The LED light efficiency enhancement structure for printing FPC according to claim 4, wherein, The FPC printing layer (11) is a conductive silver paste layer, which can be connected on the first protective film (12) by screen printing or inkjet printing.

6. The LED light efficiency enhancement structure for printing FPC according to claim 4, wherein, The thickness of the first protective film (12) ranges from 12.5 to 100 μm.

7. The LED light efficiency enhancement structure for printing FPC according to claim 4, wherein, The first protective film (12) is a white protective film or a black protective film.

8. The LED light efficiency enhancement structure for printed FPC according to claim 1, wherein, The second protective layer (3) is a black PI layer or a black PET layer.

9. The LED light efficiency enhancement structure for printing FPC according to claim 8, wherein, The thickness of the second protective layer (3) ranges from 4 to 100 μm.

10. The LED light efficiency enhancement structure for printing FPC according to claim 8, wherein, The first protective film (12) is connected on the light effect enhancement ink layer (2) by hot pressing.

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