An impact resistant reflective membrane structure

Abstract

This utility model discloses an impact-resistant reflective film structure, relating to the field of thin film technology. It includes a protective layer, a transparent buffer layer bonded to the lower side of the protective layer, a metal reflective layer bonded to the lower side of the transparent buffer layer, and a base layer bonded to the lower side of the metal reflective layer. The transparent buffer layer is made of a flexible material, and multiple buffer grooves are arrayed on the upper side of the transparent buffer layer. By setting an array of inclined through-grooves at 40°~60° on the surface of the transparent buffer layer, with the bottom of the grooves being arc-shaped, this structure addresses the problems of light leakage and poor impact resistance in traditional reflective films by directionally dispersing impact stress, compensating for thermal expansion and contraction deformation, and combining with a stretchable metal reflective layer.

Description

Technical Field

[0001] This utility model relates to the field of reflective film technology, specifically to an impact-resistant reflective film structure. Background Technology

[0002] In the field of optical thin films, traditional light leakage prevention structures typically consist of a protective layer, a metal reflective layer, and a base layer stacked together. However, these structures have significant drawbacks in practical applications: First, micro-gaps can easily form between the layers due to thermal expansion and contraction or bending, leading to light leakage at the edges. Second, the metal reflective layer has poor ductility and is prone to cracking under external force, creating light leakage points. Third, the lack of stress dispersion design makes it more susceptible to interlayer delamination or metal layer cracking under impact. For example, when a common silicone buffer layer is under pressure, localized stress concentration accelerates the separation of the metal layer from the protective layer. Therefore, there is an urgent need for a thin film structure that can simultaneously address interlayer stress, metal brittleness, and buffer failure to achieve a stable light leakage prevention effect. Utility Model Content

[0003] The purpose of this invention is to provide an impact-resistant reflective film structure to solve the problems of light leakage at the edges and internal light leakage in existing films mentioned in the background art.

[0004] To achieve the above objectives, the present invention provides the following technical solution: an anti-impact reflective film structure, comprising a protective layer, a transparent buffer layer attached to the lower side of the protective layer, a metal reflective layer attached to the lower side of the transparent buffer layer, a base layer attached to the lower side of the metal reflective layer, the transparent buffer layer being a flexible material, and a plurality of buffer grooves arrayed on the upper side of the transparent buffer layer.

[0005] Furthermore, all of the aforementioned buffer slots are inclined in the same direction.

[0006] Furthermore, the angle between the buffer groove and the upper side of the transparent buffer layer is 40° to 60°.

[0007] Furthermore, the bottom of the buffer groove is arc-shaped.

[0008] Furthermore, the two ends of the buffer groove are connected to the sides of the transparent buffer layer.

[0009] Furthermore, the transparent buffer layer is a transparent silicone layer or a transparent rubber film layer.

[0010] Furthermore, the metal reflective layer is a ductile metal layer.

[0011] Furthermore, the metal reflective layer is an aluminum layer, a silver layer, or a palladium layer.

[0012] Compared with the prior art, the beneficial effects of this utility model are: This invention provides an impact-resistant reflective film structure. By setting an array of inclined buffer grooves at 40°~60° on the surface of a transparent buffer layer, with the bottom of the grooves being arc-shaped, this structure disperses impact stress in a directional manner, compensates for thermal expansion and contraction deformation, and, combined with a ductile metal reflective layer, such as a palladium alloy, achieves three-layer synergy: the inclined grooves guide stress diffusion, reducing the stress on the metal layer by more than 60%; the through-groove structure absorbs impact energy and eliminates interlayer gaps, solving the problems of light leakage and poor impact resistance of traditional reflective films. Attached Figure Description

[0013] Figure 1 This is a cross-sectional structural diagram of the present invention.

[0014] In the diagram: 1. Protective layer; 2. Transparent buffer layer; 3. Metal reflective layer; 4. Base layer; 5. Buffer groove. Detailed Implementation

[0015] 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.

[0016] This utility model embodiment provides an anti-impact reflective film structure, including a protective layer 1, a transparent buffer layer 2 attached to the lower side of the protective layer 1, a metal reflective layer 3 attached to the lower side of the transparent buffer layer 2, and a base layer 4 attached to the lower side of the metal reflective layer 3. The metal reflective layer 3 is deposited on the upper side of the base layer 4 using a deposition method, and then formed into a composite layered structure by hot pressing together with the protective layer 1 and the transparent buffer layer 2. The transparent buffer layer 2 is a flexible material, and multiple buffer grooves 5 are arrayed on the upper side of the transparent buffer layer 2. The thickness of the transparent buffer layer 2 is 0.3 mm, the protective layer 1 is a 0.2 mm rigid polycarbonate layer, and the base layer 4 is a 0.1 mm PET layer.

[0017] In this embodiment, the upper part of the multiple buffer grooves 5 is inclined to the right, and the inclination angle of the buffer grooves 5 is the same. The width of the buffer groove 5 is 0.1mm, the spacing between the buffer grooves 5 is 0.1mm, and the depth of the buffer groove 5 is 0.15mm.

[0018] In this embodiment, the angle between the buffer groove 5 and the upper side of the transparent buffer layer 2 is 45°. In some other embodiments, the optional range can be adjusted adaptively, and the preferred angle setting range is 40° to 60°.

[0019] In this embodiment, the bottom of the buffer groove 5 is an arc shape with a diameter of 0.1 mm.

[0020] In this embodiment, the two ends of the buffer groove 5 are connected to the side of the transparent buffer layer 2.

[0021] In this embodiment, the transparent buffer layer 2 is a transparent silicone layer or a transparent rubber film layer.

[0022] In this embodiment, the metal reflective layer 3 is a ductile metal layer.

[0023] In this embodiment, the metal reflective layer 3 is an aluminum layer, a silver layer, or a palladium layer.

[0024] The working principle includes stress dispersion: when an external impact acts on the protective layer 1, the buffer groove 5 guides the impact force to spread along the long axis of the groove. At the same time, the buffer groove 5 deforms to relieve the impact force, avoids stress damage to the protective layer 1 caused by instantaneous impact, and disperses the local stress of the metal layer reflective layer.

[0025] Deformation compensation: The through-hole design of the buffer groove 5 allows the silicone layer to absorb volume changes through the deformation of the groove when it expands and contracts with heat, eliminating micro gaps between layers and reducing the probability of light leakage.

[0026] It will be apparent to those skilled in the art that this invention is not limited to the details of the exemplary embodiments described above, and that it can be implemented in other specific forms without departing from the spirit or essential characteristics of this invention. Therefore, the embodiments should be considered illustrative and non-limiting in all respects, and the scope of this invention is defined by the appended claims rather than the foregoing description. Thus, it is intended that all variations falling within the meaning and scope of equivalents of the claims be included within this invention. No reference numerals in the claims should be construed as limiting the scope of the claims.

Claims

1. An anti-impact reflective diaphragm structure, comprising a protective layer (1), characterized in that: The lower side of the protective layer (1) is attached to a transparent buffer layer (2), the lower side of the transparent buffer layer (2) is attached to a metal reflective layer (3), the lower side of the metal reflective layer (3) is attached to a base layer (4), the transparent buffer layer (2) is a flexible material, and the upper side of the transparent buffer layer (2) is arrayed with multiple buffer grooves (5).

2. The anti-impact reflective diaphragm structure according to claim 1, characterized in that: All of the buffer slots (5) are inclined in the same direction.

3. The anti-impact reflective diaphragm structure according to claim 1, characterized in that: The angle between the buffer groove (5) and the upper side of the transparent buffer layer (2) is 40° to 60°.

4. The anti-impact reflective diaphragm structure according to claim 1, characterized in that: The bottom of the buffer groove (5) is arc-shaped.

5. The anti-impact reflective diaphragm structure according to claim 1, characterized in that: The two ends of the buffer groove (5) are connected to the side of the transparent buffer layer (2).

6. The anti-impact reflective diaphragm structure according to claim 1, characterized in that: The transparent buffer layer (2) is a transparent silicone layer or a transparent rubber film layer.

7. The anti-impact reflective diaphragm structure according to claim 1, characterized in that: The metal reflective layer (3) is a ductile metal layer.

8. The anti-impact reflective diaphragm structure according to claim 7, characterized in that: The metal reflective layer (3) is an aluminum layer, a silver layer, or a palladium layer.

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