Scratch-resistant and wear-resistant quantum dot diffusion film

By introducing a diamond-like carbon coating and a base layer design with reinforced PET material into the quantum dot diffusion film, the problem of easy damage to the film material is solved, and the scratch resistance, wear resistance and optical performance are improved, reducing maintenance costs and improving the stability and optical effect of use.

CN224231994UActive Publication Date: 2026-05-12CHANGZHOU ZHIWEN PHOTOELECTRIC TECH CO LTD
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Patent Information

Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
CHANGZHOU ZHIWEN PHOTOELECTRIC TECH CO LTD
Filing Date
2025-07-02
Publication Date
2026-05-12

AI Technical Summary

Technical Problem

Existing quantum dot diffusion membranes are easily damaged by external scratches or impacts during use, affecting their service life and increasing maintenance costs.

Method used

The design employs a diamond-like carbon coating on the protective layer surface and a base layer of reinforced PET material, combined with a transition layer and a diffusion composite layer, to provide scratch and abrasion resistance. The thickness and interface reflection are reduced by combining a quantum dot layer with a diffusion layer.

Benefits of technology

It improves the service life of the membrane material, reduces maintenance costs, enhances the stability and practicality of the membrane material, and improves the uniformity of light and color performance through optical design.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model relates to the technical field of diffusion films, and discloses a scratch-resistant wear-resistant quantum dot diffusion film which comprises a protective layer, a transition layer is fixedly connected to the lower end of the protective layer, a diffusion composite layer is fixedly connected to the lower end of the transition layer, and a substrate layer is fixedly connected to the lower end of the diffusion composite layer. According to the utility model, the diamond-like carbon coating on the surface of the protective layer is used for providing protection for the surface of the membrane material and is matched with the substrate layer and the transition layer which are made of enhanced PET (Polyethylene Terephthalate) materials to provide certain absorption for the internal stress or external impact of the structure, so that the aim of providing stable protection for the subsequent use of the membrane material is fulfilled; the subsequent membrane material is prevented from being damaged due to external scraping or impact, so that the service life of the membrane material is prolonged, the subsequent maintenance cost is further reduced, and the overall practicability of the membrane material is improved.
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Description

Technical Field

[0001] This utility model relates to the field of diffusion film technology, and in particular to a scratch-resistant and wear-resistant quantum dot diffusion film. Background Technology

[0002] Quantum dot diffusion film is a revolutionary optical composite material designed specifically for high-end liquid crystal display (LCD) backlight modules. It combines the optical properties of quantum dot nanomaterials with the structural functions of diffusion films, significantly improving the color performance, brightness, and uniformity of display devices.

[0003] However, when using quantum dot diffusion films, they may sometimes be damaged due to external scratches or other factors, requiring additional time for maintenance and affecting subsequent normal use. Utility Model Content

[0004] To solve the above-mentioned technical problems, this utility model provides a scratch-resistant and wear-resistant quantum dot diffusion film.

[0005] This utility model is achieved by the following technical solution: a scratch-resistant and wear-resistant quantum dot diffusion film, including a protective layer, a transition layer fixedly connected to the lower end of the protective layer, a diffusion composite layer fixedly connected to the lower end of the transition layer, and a base layer fixedly connected to the lower end of the diffusion composite layer.

[0006] The above technical solution uses a diamond-like carbon coating on the surface of the protective layer to provide protection for the membrane surface. Combined with a base layer and transition layer made of reinforced PET material, it provides a certain degree of absorption for internal stress or external impact. This achieves the purpose of providing stable protection for the subsequent use of the membrane material, preventing the membrane material from being damaged by external scratches or impacts, thereby increasing the service life of the membrane material, further reducing subsequent maintenance costs, and improving the overall practicality of the membrane material.

[0007] As a further improvement to the above scheme, the diffusion composite layer is a combination of a quantum dot layer and a diffusion layer.

[0008] By using the above technical solution, which combines the quantum dot layer with the diffusion layer, the overall thickness of the membrane material and the interface reflection are reduced, making the subsequent use of the membrane material more convenient.

[0009] As a further improvement to the above solution, the protective layer is made of UV-curable nanocomposite resin, and the surface of the protective layer is provided with a diamond-like carbon coating.

[0010] By using the above technical solution, the combination of the protective layer and its surface coating provides stable protection for the membrane material as a whole, preventing damage to the membrane material due to scratches or other reasons, and improving the overall practicality of the structure.

[0011] As a further improvement to the above solution, the substrate layer is made of reinforced PET material.

[0012] By using the above technical solution and a base layer made of reinforced PET, the overall initial strength is improved, making the membrane material more stable in subsequent use.

[0013] As a further improvement to the above scheme, the thickness of the substrate layer is 50-100 μm.

[0014] As a further improvement to the above solution, the transition layer is made of siloxane optical adhesive.

[0015] The above technical solutions provide a stable buffer and connection for the overall structure, making the subsequent use of the structure more convenient.

[0016] Compared with the prior art, the beneficial effects of this utility model are as follows:

[0017] This invention utilizes a diamond-like carbon coating on the protective layer, an amorphous carbon structure, and its low coefficient of friction to provide better scratch resistance. Furthermore, a reinforced PET base layer resists surface cracks caused by membrane curling, further enhancing the structure's stability. By using the diamond-like carbon coating on the protective layer to protect the membrane surface, and combining it with a reinforced PET base layer and transition layer to absorb internal stress or external impacts, this design achieves stable protection for subsequent membrane use, preventing damage from scratches or impacts, thus extending the membrane's lifespan, reducing maintenance costs, and improving overall practicality.

[0018] This invention allows light to penetrate the substrate layer and enter the diffusion composite layer during use. At this time, the quantum dot material in the diffusion composite layer absorbs blue light and excites high-purity red / green light. The diffused particles eliminate interference fringes. Subsequently, the excitation light is buffered by the refractive index matching of the transition layer and then outputs highly uniform wide color gamut light by the protective layer, making the overall color saturation more uniform and improving the practicality of the film material. Attached Figure Description

[0019] Figure 1 This is a schematic diagram of the overall specific parts structure of this utility model;

[0020] Figure 2 This is a schematic diagram of the overall structure of this utility model;

[0021] Figure 3 This is a schematic diagram of the overall bottom structure of this utility model.

[0022] Explanation of key symbols:

[0023] 1. Protective layer; 2. Transition layer; 3. Diffusion composite layer; 4. Base layer. Detailed Implementation

[0024] The present invention will be further described below with reference to the accompanying drawings and specific embodiments. It should be noted that, without conflict, the various embodiments or technical features described below can be arbitrarily combined to form new embodiments.

[0025] Example:

[0026] Please combine Figure 1-3 This embodiment of a scratch-resistant and wear-resistant quantum dot diffusion membrane includes a protective layer 1, a transition layer 2 fixedly connected to the lower end of the protective layer 1, a diffusion composite layer 3 fixedly connected to the lower end of the transition layer 2, and a base layer 4 fixedly connected to the lower end of the diffusion composite layer 3. The protective layer 1 uses a diamond-like carbon coating to provide protection for the membrane surface, and the base layer 4 and transition layer 2, made of reinforced PET material, are designed to absorb internal stress or external impacts. This achieves the purpose of providing stable protection for the subsequent use of the membrane, preventing damage from external scratches or impacts, thereby extending the service life of the membrane, further reducing subsequent maintenance costs, and improving the overall practicality of the membrane.

[0027] The diffusion composite layer 3 is a combination of a quantum dot layer and a diffusion layer. By combining the quantum dot layer and the diffusion layer, the overall thickness of the membrane material and the interface reflection are reduced, making the subsequent use of the membrane material more convenient.

[0028] The protective layer 1 is made of UV-cured nanocomposite resin.

[0029] The substrate 4 is made of reinforced PET material. Using a substrate 4 made of reinforced PET material achieves the purpose of improving the overall initial strength, making the membrane material more stable in subsequent use.

[0030] The thickness of the substrate 4 is 50-100 μm.

[0031] The transition layer 2 is made of silicone alkyl optical adhesive, which provides stable buffering and connection for the overall structure, making the subsequent use of the structure more convenient.

[0032] The protective layer 1 has a diamond-like carbon coating on its surface. The combination of the protective layer 1 and its surface coating provides stable protection for the membrane material as a whole, preventing damage to the membrane material due to scratches or other reasons, and improving the overall practicality of the structure.

[0033] The implementation principle of the scratch-resistant and wear-resistant quantum dot diffusion film in this application embodiment is as follows: When in use, light penetrates the substrate layer 4 and enters the diffusion composite layer 3. At this time, the quantum dot material in the diffusion composite layer 3 absorbs blue light and excites high-purity red / green light. The diffused particles eliminate interference fringes. Subsequently, the excitation light is buffered by the refractive index matching of the transition layer 2, and then outputs highly uniform wide color gamut light by the protective layer 1. At the same time, the diamond-like carbon coating on the surface of the protective layer 1 is an amorphous carbon structure, and its low coefficient of friction can provide better scratch resistance for the protective layer 1. Furthermore, the substrate is made of reinforced PET. The bottom layer 4 resists surface cracks caused by membrane material curling, thereby further improving the stability of the structure. The membrane material uses a diamond-like carbon coating on the surface of the protective layer 1 to provide protection for the membrane surface, and together with the base layer 4 made of reinforced PET material and the transition layer 2, it is designed to absorb internal stress or external impact. This achieves the purpose of providing stable protection for the subsequent use of the membrane material, preventing the membrane material from being damaged by external scratches or impacts, thereby increasing the service life of the membrane material, further reducing subsequent maintenance costs, and improving the overall practicality of the membrane material.

[0034] The above embodiments are merely preferred embodiments of this utility model and should not be construed as limiting the scope of protection of this utility model. Any non-substantial changes and substitutions made by those skilled in the art based on this utility model shall fall within the scope of protection claimed by this utility model.

Claims

1. A scratch-resistant and wear-resistant quantum dot diffusion film, characterized in that, The protective layer (1) is fixedly connected to a transition layer (2) at its lower end, a diffusion composite layer (3) is fixedly connected to the lower end of the transition layer (2), and a base layer (4) is fixedly connected to the lower end of the diffusion composite layer (3). The protective layer (1) is made of UV-curable nanocomposite resin, the base layer (4) is made of reinforced PET material, the thickness of the base layer (4) is 50-100 μm, the transition layer (2) is made of siloxane optical adhesive, and the surface of the protective layer (1) is provided with a diamond-like carbon coating.

2. The scratch-resistant and wear-resistant quantum dot diffusion film as described in claim 1, characterized in that: The diffusion composite layer (3) is a combination of a quantum dot layer and a diffusion layer.