Light guide film structure with protection function

Abstract

The utility model discloses a light guide film structure with a protection function, which comprises an upper structure and a lower structure which are bonded, a cavity is arranged between the upper structure and the lower structure, the upper structure consists of an upper sealing layer and a lower sealing layer which are bonded on the upper surface and the lower surface of a film body, and convex surfaces and concave surfaces on the upper structure are distributed in a staggered manner. According to the film structure, the mode that the upper layer and the lower layer are bonded is adopted, the lower structure is bonded with the upper structure which is arranged on the light source placing portion and used for reflecting light, the lower structure is bonded with the upper structure with the diffusion film in a spaced mode, and the upper structure is provided with the staggered concave-convex faces. Meanwhile, heat is prevented from being conducted through the film structure due to the arrangement of the space, the good heat insulation effect is achieved, and the heat insulation and protection effects on light-emitting equipment are achieved.

Description

Technical Field

[0001] The utility model relates to the technical field of astigmatic heat insulation, in particular to a light guide film structure with a protection function. Background Art

[0002] A light guide film (abbreviation: LGF) is a transparent film with high refractive index and light transmittance, mainly used in optical applications such as backlight display and lighting. For example, the light guide film can also be applied to automotive lighting and high-power lighting devices to provide a uniform and efficient light source;

[0003] However, when a high-power lighting device is working, due to light radiation and heat conduction, the backlight part of the device will have an extremely high temperature, causing some electronic devices in the device to bear a relatively high temperature and affecting the service life of the device. Summary of the Utility Model

[0004] The purpose of this part is to outline some aspects of the embodiments of the utility model and briefly introduce some preferred embodiments. Some simplifications or omissions may be made in this part, as well as in the abstract of the specification and the title of the utility model of this application, to avoid obscuring the purpose of this part, the abstract of the specification, and the title of the utility model. However, such simplifications or omissions shall not be used to limit the scope of the utility model.

[0005] To solve the above-mentioned problems, the utility model provides the following technical solution: A light guide film structure with a protection function includes an upper structure and a lower structure bonded together, with a cavity therebetween. The upper structure is composed of an upper sealing layer and a lower sealing layer bonded to the upper and lower surfaces of the film body, and the convex surfaces and concave surfaces on the upper structure are distributed alternately.

[0006] Based on the above technical solution, the utility model can be further improved as follows.

[0007] As a preferred scheme of the light guide film structure with a protection function described in the utility model, wherein: the film body is a diffusion film, and both the upper sealing layer and the lower sealing layer are made of transparent materials.

[0008] As a preferred scheme of the light guide film structure with a protection function described in the utility model, wherein: the order of the film body, the upper sealing layer, and the lower sealing layer is that the film body is in the middle, and the upper sealing layer and the lower sealing layer are sequentially on the upper surface and the lower surface of the film body.

[0009] As a preferred scheme of the light guide film structure with a protection function described in the utility model, wherein: the gap distance between adjacent convex surfaces gradually decreases from high to low.

[0010] As a preferred scheme of the light guide film structure with a protection function described in the utility model, wherein: the surface of the convex surface is a smooth spherical surface, and the surface of the concave surface is a smooth spherical surface.

[0011] As a preferred embodiment of the light guide film structure with a protection function of the present utility model, wherein: the concave surface is bonded to the lower structure to form a partition surface, and the partition surface divides the cavity into interconnected partition spaces.

[0012] The beneficial effects of the present utility model are as follows: The film structure adopts a bonding method of upper and lower layers. The lower structure is used for reflecting light at the light source position. The lower structure and the upper structure with a diffusion film are adhesively bonded in a spaced manner, and the upper structure has intersecting concave and convex surfaces. This film structure not only further increases the reflection surface area of the light source, but also the spaced setting avoids heat conduction through the film structure, having a good heat insulation effect and achieving the effect of heat insulation and protection for the light-emitting device. Description of the Drawings

[0013] In order to more clearly illustrate the technical solutions of the embodiments of the present utility model, the drawings required for the description of the embodiments will be briefly introduced below. Obviously, the drawings in the following description are only some embodiments of the present utility model. For those of ordinary skill in the art, other drawings can be obtained based on these drawings without creative efforts. Among them:

[0014] Figure 1 is a three-dimensional view of the whole of this embodiment.

[0015] Figure 2 is for this embodiment Figure 1 of a partial three-dimensional view.

[0016] Figure 3 is for this embodiment Figure 1 of a plan view.

[0017] Figure 4 is for this embodiment Figure 3 of a partial three-dimensional view.

[0018] Figure 5 is for this embodiment Figure 1 of a sectional structure view.

[0019] Figure 6 is for this embodiment Figure 1 of a sectional structure view.

[0020] Figure 7 is a structure view of the upper structure of this embodiment.

[0021] In the figure: upper structure 100, upper sealing layer 100a, film body 100b, lower sealing layer 100c;

[0022] convex surface 101, concave surface 102, gap 103, partition space 104, partition surface 105;

[0023] Lower structure 200 and cavity 201. Detailed implementation mode

[0024] To make the above objects, features, and advantages of the present utility model more obvious and understandable, the following will describe the detailed implementation mode of the present utility model in conjunction with the drawings of the specification.

[0025] In the following description, many specific details are set forth to fully understand the present utility model. However, the present utility model can also be implemented in other ways different from those described herein. Those skilled in the art can make similar extensions without departing from the connotation of the present utility model. Therefore, the present utility model is not limited by the specific embodiments disclosed below.

[0026] Secondly, the so-called "one embodiment" or "embodiment" herein refers to a specific feature, structure, or characteristic that can be included in at least one implementation mode of the present utility model. The "in one embodiment" that appears in different places in this specification does not all refer to the same embodiment, nor is it an individual or selectively exclusive embodiment with other embodiments.

[0027] Embodiment

[0028] Referring to Figures 1 to 7 , which is an embodiment of the present utility model. This embodiment provides a light guide film structure with a protection function, including an upper structure 100 and a lower structure 200 bonded together, with a cavity 201 therebetween. The upper structure 100 is composed of an upper sealing layer 100a and a lower sealing layer 100c bonded to the upper and lower surfaces of the film body 100b. The convex surfaces 101 and concave surfaces 102 on the upper structure 100 are distributed alternately.

[0029] As Figure 1 shown, specifically, this film structure adopts a bonding method of two upper and lower layers. The lower structure 200 is used for reflecting light at the light source position. The lower structure 200 and the upper structure 100 with a diffusion film are bonded in an air-spaced manner, and the upper structure 100 has alternating concave and convex surfaces. This film structure not only further increases the reflection surface area of the light source, but also the air-spaced setting avoids heat conduction through the film structure, has a good heat insulation effect, and has an effect of heat insulation and protection on the light-emitting device;

[0030] Furthermore, the film body 100b is a diffusion film, and both the upper sealing layer 100a and the lower sealing layer 100c are made of transparent materials. The order of the film body 100b, the upper sealing layer 100a, and the lower sealing layer 100c is that the film body 100b is in the middle, and the upper sealing layer 100a and the lower sealing layer 100c are successively on the upper and lower surfaces of the film body 100b;

[0031] The main functions of the diffusion film include correcting the angle of light propagation, making the light more uniform, and reducing or eliminating some adverse phenomena such as Newton's rings and interference fringes. As part of the backlight source, the diffusion film plays a role in correcting the diffusion angle, increasing the light radiation area, but reducing the light intensity per unit area. The diffusion film usually consists of three layers: a scratch-resistant layer, a transparent PET substrate layer, and a diffusion layer. Light passes through the transparent PET substrate layer and then is dispersed in the diffusion coating, thus achieving soft and uniform diffusion of light. The upper sealing layer 100a and the lower sealing layer 100c can use the ZS-322 transparent high-temperature resistant heat insulation coating, which is a transparent coating that combines softness and high-temperature resistance. This coating is made by finely processing high-temperature inorganic material compounds and can withstand temperatures up to 2000°C. When the coating cures, the crystal nuclei of the compound materials are evenly controlled to ensure its transparency and high-temperature resistance performance;

[0032] As Figure 5 , Figure 6 shown, the distance of the gap 103 between adjacent convex surfaces 101 gradually decreases from high to low. The shape of the gap between adjacent convex surfaces 101 is generally frustum-shaped. At high temperatures, the flow velocity of air flowing through this gap is different. At the lower gap, due to its narrowness, the flow velocity of air speeds up. According to Bernoulli's principle, an increase in flow velocity leads to a decrease in pressure energy. Therefore, in the narrow area, while the flow velocity of air speeds up, its pressure also decreases. This pressure difference further promotes the air to flow faster. The principle that a narrower pipe or terrain makes the air flow velocity increase is mainly because the air mass cannot accumulate in the narrow area, resulting in the air flow being forced to accelerate. And an increase in flow velocity leads to a decrease in pressure, thus forming a negative pressure area, which further promotes air flow. The faster the flow velocity, the temperature at this gap decreases, which will deprive part of the heat on the surface of the film and further reduce the heat exchange between the film body and the equipment;

[0033] Furthermore, the surface of the convex surface 101 is a smooth spherical surface, and the surface of the concave surface 102 is a smooth spherical surface. The spherical surface has a good and uniform light reflection effect;

[0034] Furthermore, the concave surface 102 is bonded to the lower structure 200 to form a partition surface 105. The partition surface 105 divides the cavity 201 into interconnected partition spaces 104, making the two-layer bonded film structure more stable. At the same time, the interconnected partition spaces 104 have heat insulation effects.

[0035] Importantly, it should be noted that the construction and arrangement of the present application shown in multiple different exemplary embodiments are merely illustrative. Although only a few embodiments are described in detail in this disclosure, those who refer to this disclosure should easily understand that many modifications are possible without materially departing from the novel teachings and advantages of the subject matter described in this application (e.g., changes in the dimensions, scales, structures, shapes and proportions of various elements, as well as parameter values (such as temperature, pressure, etc.), installation arrangements, use of materials, colors, orientations, etc.). For example, an element shown as integrally formed may be composed of multiple parts or elements, the position of the element may be inverted or otherwise changed, and the nature, number or position of discrete elements may be altered or changed. Accordingly, all such modifications are intended to be included within the scope of the present utility model. The order or sequence of any process or method steps may be changed or reordered according to alternative embodiments. In the claims, any "means plus function" clauses are intended to cover the structures that perform the recited functions herein, and not only structural equivalents but also equivalent structures. Other substitutions, modifications, changes and omissions may be made in the design, operating conditions and arrangement of the exemplary embodiments without departing from the scope of the present utility model. Therefore, the present utility model is not limited to a particular embodiment, but extends to various modifications that still fall within the scope of the appended claims.

[0036] In addition, in order to provide a concise description of the exemplary embodiments, all features of the actual embodiments may not be described (i.e., those features that are not relevant to the currently contemplated best mode of carrying out the present utility model or those features that are not relevant to the implementation of the present utility model).

[0037] It should be understood that in the development of any actual implementation, as in any engineering or design project, numerous specific implementation decisions may be made. Such development efforts may be complex and time-consuming, but for those of ordinary skill in the art who benefit from this disclosure, without undue experimentation, such development efforts will be a routine task of design, manufacture and production.

[0038] It should be noted that the above embodiments are only used to illustrate the technical solutions of the present utility model and not to limit them. Although the present utility model has been described in detail with reference to the preferred embodiments, those of ordinary skill in the art should understand that the technical solutions of the present utility model may be modified or equivalently replaced without departing from the spirit and scope of the technical solutions of the present utility model, and all of them should be covered by the scope of the claims of the present utility model.

Claims

1. A light-guiding film structure with a protective function, characterized in that: The invention comprises an upper structure (100) and a lower structure (200) bonded together, with a cavity (201) therebetween; the upper structure (100) is composed of an upper sealing layer (100a) and a lower sealing layer (100c) bonded to the upper and lower surfaces of a membrane body (100b); and the convex surface (101) and the concave surface (102) on the upper structure (100) are arranged in an alternating manner.

2. The light-guiding film structure with a protective function as claimed in claim 1, characterized in that: The film body (100b) is a diffusion film, and the upper sealing layer (100a) and the lower sealing layer (100c) are both made of transparent materials.

3. The light-guiding film structure with a protective function as claimed in claim 2, characterized in that: The order of the film body (100b), the upper sealing layer (100a) and the lower sealing layer (100c) is that the film body (100b) is in the middle, and the upper sealing layer (100a) and the lower sealing layer (100c) are respectively on the upper surface and the lower surface of the film body (100b).

4. The light-guiding film structure with a protective function as claimed in claim 1, characterized in that: The distance of the gap (103) between adjacent convex surfaces (101) gradually decreases from high to low.

5. The light-guiding film structure with a protective function as claimed in claim 4, characterized in that: The convex surface (101) is a smooth spherical surface, and the concave surface (102) is a smooth spherical surface.

6. The light-guiding film structure with protective function according to claim 1 or 4, characterized in that: The concave surface (102) is bonded to the lower structure (200) to form a partition surface (105), and the partition surface (105) divides the cavity (201) into mutually connected compartments (104).

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