Reflector plate capable of improving reflection intensity and preparation equipment

Abstract

The utility model relates to the technical field of reflector plates, in particular to a reflector plate capable of improving reflection intensity and preparation equipment, which comprises a base layer and an auxiliary component, particles are coated on the surface of the base layer, the auxiliary component comprises a reflecting layer, a bonding layer and a protective film layer, and light guide points are printed on the reflecting surface of the reflecting layer. The reflector plate not only has a traditional reflecting function, but also has a light guide function when the reflecting surface of the reflecting layer is matched with the transparent plate for use, and compared with the high cost of the light guide plate formed by printing the light guide points on the back surface of the transparent plate in the prior art, the technical cost of printing the light guide points on the reflecting layer is lower, and the light guide plate has the light guide function. Meanwhile, the safety of the reflecting layer can be improved and the service life can be prolonged through the protective film layer, and the performance can be further enhanced by coating particles on the surface of the base layer, so that the structure of the reflecting sheet can be optimally designed, and the reflecting strength can be improved and the cost can be reduced.

Description

Technical Field

[0001] The utility model relates to the technical field of reflection sheets, in particular to a reflection sheet with improved reflection intensity and a preparation device. Background Art

[0002] LED lighting fixtures, liquid crystal display screens and other structures have a backlight source structure. At present, traditional LED and lighting fixture backlight modules all use a reflective sheet as a carrier for the reuse of light. The role of the reflective sheet is to reuse light for the second or multiple times to reduce the light loss rate.

[0003] In the prior art, the conversion of a line light source into a surface light source is achieved through a light guide plate. The light guide plate of the prior art uses an optical-grade acrylic sheet, and then uses ink with extremely high reflectivity and non-light-absorbing to print light guide points on the bottom surface of the optical-grade acrylic sheet. The optical-grade acrylic sheet is used to absorb the light emitted from the lamp and stay on the surface of the optical-grade acrylic sheet. When the light hits each light guide point, the reflected light will diffuse to various angles, and then destroy the reflection condition and be emitted from the front of the light guide plate. Through various light guide points of different densities and sizes, the light guide plate can emit light evenly. The light guide plate is generally used with a reflective sheet on its back. The purpose of the reflective sheet is to reflect the light exposed from the bottom surface of the light guide plate back into the light guide plate to improve the efficiency of light use.

[0004] However, the light guide points on the light guide plate of the prior art are directly printed on the bottom surface of the light guide plate. This process is difficult to operate in practice, has a low yield rate, and therefore has a high cost. Summary of the invention

[0005] The utility model aims to provide a reflector sheet with improved reflection intensity and a preparation device, which can optimize the design of the reflector sheet structure, thereby improving the reflection intensity and reducing the cost.

[0006] To achieve the above-mentioned object, the utility model provides a reflective sheet with improved reflection intensity, comprising a base layer, particles coated on the surface of the base layer, and an auxiliary component;

[0007] The auxiliary component comprises a reflective layer, an adhesive layer and a protective film layer, wherein the reflective layer is arranged on one side of the base layer, the adhesive layer is fixedly connected to the base layer and the reflective layer respectively and is located between the base layer and the reflective layer, and the protective film layer is arranged above the reflective layer;

[0008] Light guide dots are printed on the reflective surface of the reflective layer, and the light guide dots are made of ink.

[0009] The base layer is made of PET or PC plastic, and the thickness of the base layer is 1.5 times that of the reflective layer.

[0010] The reflective layer is made of PC plastic, and the thickness of the reflective layer is 0.001mm-0.005mm.

[0011] Wherein, the thickness of the protective film layer is 0.02-0.05 mm.

[0012] Among them, a reflector preparation device is used to process the reflector with improved reflection intensity.

[0013] The utility model discloses a reflective sheet with improved reflection intensity, wherein particles are coated on the surface of a base layer, the reflective layer is fixedly connected to the base layer by an adhesive layer, a protective film layer is arranged above the reflective layer, and light guide points are printed on the reflective surface of the reflective layer, the light guide points are composed of ink, the reflective sheet of the utility model not only has the traditional reflection function, but also has the light guide function when used with a transparent plate on the reflective surface of the reflective layer, compared with the high cost of printing the light guide points on the back of the transparent plate to form a light guide plate in the prior art, the technical cost of printing the light guide points on the reflective layer in the utility model is lower, but the effect is the same, which is conducive to reducing costs, and at the same time, the protective film layer can improve the safety of the reflective layer and extend its service life, and the particles are coated on the surface of the base layer to further enhance the performance, and then the reflective sheet structure can be optimized and designed, which is conducive to improving the reflection intensity and reducing costs. BRIEF DESCRIPTION OF THE DRAWINGS

[0014] In order to more clearly illustrate the embodiments of the present application or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art are briefly introduced below.

[0015] Figure 1 It is a schematic diagram of the overall structure of a reflective sheet for improving reflection intensity of the utility model.

[0016] Figure 2 It is a structural schematic diagram of the reflective layer of the utility model.

[0017] In the figure: 101 - base layer, 102 - reflective layer, 103 - adhesive layer, 104 - protective film layer, 105 - light guide point. DETAILED DESCRIPTION

[0018] Embodiments of the present invention are described in detail below, and examples of the embodiments are shown in the accompanying drawings. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, but should not be understood as limiting the present invention.

[0019] like Figure 1 and Figure 2 As shown, Figure 1 It is a schematic diagram of the overall structure of the reflector for improving the reflection intensity. Figure 21 is a schematic diagram of the structure of the reflective layer 102. The utility model provides a reflective sheet with improved reflection intensity: comprising a base layer 101 and an auxiliary component, the surface of the base layer 101 is coated with particles, the auxiliary component comprises a reflective layer 102, an adhesive layer 103 and a protective film layer 104, and a light guide point 105 is printed on the reflective surface of the reflective layer 102, and the light guide point 105 is composed of ink. The above scheme can realize the optimized design of the reflective sheet structure, which is conducive to improving the reflection intensity and reducing the cost. It can be understood that the above scheme can be conducive to improving the reflection intensity of the reflective sheet and reducing the processing cost.

[0020] In this embodiment, particles are coated on the surface of the base layer 101, and particles are coated on the bottom surface of the base layer 101 close to the adhesive layer 103 to improve reflectivity. After the base layer 101 is coated with particles, a reflective film structure is formed, because the reflective film is usually applied to the bottom layer of the backlight module, the purpose is to reduce the process loss of the light source. This application adopts white polyester (PET) reflective film coating, because the white polyester reflective film has the characteristics of high reflectivity, good processing performance and low cost, so that the reflective sheet has good performance.

[0021] Among them, the adhesive layer 103 is fixedly connected to the base layer 101 and the reflective layer 102 respectively, and is located between the base layer 101 and the reflective layer 102, and the protective film layer 104 is arranged above the reflective layer 102; the reflective layer 102 is fixedly connected to the base layer 101 through the adhesive layer 103, so that a composite reflective sheet structure can be formed through the base layer 101, the adhesive layer 103 and the reflective layer 102.

[0022] The reflective surface of the reflective layer 102 is printed with light guide dots 105, which are made of ink. Compared with the high cost of printing the light guide dots 105 on the back of a transparent plate to form a light guide plate in the prior art, the technical cost of printing the light guide dots 105 on the reflective layer 102 in the utility model is relatively low, but the effect is the same, which is conducive to reducing costs.

[0023] Secondly, the base layer 101 is made of PET or PC plastic, and the thickness of the base layer 101 is 1.5 times that of the reflective layer 102. PET is a common polyethylene terephthalate material. PET material is widely used in various production fields due to its high transparency, excellent glossiness and appearance. At the same time, it has good mechanical properties, such as strength and toughness, and excellent electrical properties, making it an excellent insulating material and widely used. Compared with PET material, PC material (polycarbonate) is known for its higher performance and wider application fields. PC material is an engineering plastic with high transparency and excellent impact resistance. It has excellent heat resistance and can maintain stable performance at higher temperatures. This makes PC material an ideal choice for making high-performance products such as electronic product housings, automotive parts, and medical devices. In terms of electrical performance, PC material also performs well. It has excellent properties such as good self-extinguishing and flame retardant properties, making it widely used in the electrical and electronic fields. At the same time, the processing performance of PC material is also very good, and it can be subjected to various molding processes such as injection molding, extrusion, blow molding, etc., which is convenient for production according to the required shape of the product. Therefore, the base layer 101 is made of PET material or PC plastic, which will be able to obtain better performance.

[0024] Then, the reflective layer 102 is made of PC plastic and has a thickness of 0.001 mm to 0.005 mm. The reflective layer 102 can form a reflective film structure for light reflection.

[0025] Furthermore, the thickness of the protective film layer 104 is 0.02-0.05 mm. The protective film layer 104 is used to protect the reflective layer 102, thereby extending its service life.

[0026] Finally, a reflective sheet preparation device is provided, which is used to process the reflective sheet with improved reflection intensity. During processing, a hot pressing process is added after the reflective sheet is made. The internal shape of the reflective sheet is hot pressed on the surface of the reflective sheet using the surface structure of the equipment roller, and the reflective sheet is processed again according to the internal shape to achieve the purpose of improving the light reflection intensity. The surface structure of the hot pressing roller is cylindrical. The surface cylindrical structure is a cylinder with a diameter of 20±5μm and a height of 5±2μm. Each cylinder is 40μm apart. The structural spacing can adjust the reflection intensity of the reflective sheet by changing the spacing density according to the test structure. The equipment is divided into upper and lower rollers. The upper roller has a uniformly distributed cylindrical protruding structure, and the lower roller has a smooth surface without special structure. A layer of 0.33mm reflective sheet or PET of the same thickness is wrapped on the surface of the lower roller as a buffer. The upper and lower rollers of the equipment can adjust the temperature. During hot pressing, the upper roller is set to 80℃ and the lower roller is set to 40℃. The roller interval is set according to the thickness of the reflective sheet. The pressure during hot pressing is maintained at about 6T. The pressure used during hot pressing needs to be adjusted according to the depth of the internal shape of the reflective sheet after hot pressing. After hot pressing the internal structure, the temperature can be reduced, rolled and packaged to complete the processing.

[0027] When the utility model is used to optimize the design of the reflective sheet structure, which is beneficial to improving the reflection intensity and reducing the cost, the reflective sheet of the utility model not only has the traditional reflection function, but also has a light guiding function when used in conjunction with a transparent plate on the reflective surface of the reflective layer 102. Compared with the high cost of the prior art of printing the light guiding points 105 on the back of a transparent plate to form a light guiding plate, the utility model prints the light guiding points 105 on the reflective layer 102, which has a lower technical cost, but the effect is the same, which is beneficial to reducing costs. At the same time, the protective film layer 104 can improve the safety of the reflective layer 102 and extend its service life. Particles are coated on the surface of the base layer 101 to further enhance performance.

[0028] What is disclosed above is only one or more preferred embodiments of the present application, and cannot be used to limit the scope of rights of the present application. Ordinary technicians in this field can understand that all or part of the processes of implementing the above embodiments and equivalent changes made according to the claims of the present application are still within the scope covered by the present application.

Claims

1. A reflective sheet for improving reflection intensity, comprising a base layer, the surface of which is coated with particles, characterized in that: Also included are auxiliary components; The auxiliary component comprises a reflective layer, an adhesive layer and a protective film layer, wherein the reflective layer is arranged on one side of the base layer, the adhesive layer is fixedly connected to the base layer and the reflective layer respectively and is located between the base layer and the reflective layer, and the protective film layer is arranged above the reflective layer; Light guide dots are printed on the reflective surface of the reflective layer, and the light guide dots are made of ink.

2. The reflective sheet for improving reflection intensity according to claim 1, characterized in that: The base layer is made of PET or PC plastic, and the thickness of the base layer is 1.5 times that of the reflective layer.

3. The reflective sheet for improving reflection intensity according to claim 1, characterized in that: The reflective layer is made of PC plastic, and the thickness of the reflective layer is 0.001mm-0.005mm.

4. The reflective sheet for improving reflection intensity according to claim 1, wherein: The thickness of the protective film layer is 0.02-0.05 mm.

5. A reflective sheet manufacturing device, characterized in that: Used for processing a reflective sheet with improved reflection intensity as claimed in any one of claims 1 to 4.

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