Optical film structure

Abstract

The embodiment of the utility model belongs to the technical field of optical films. The utility model further relates to an optical film structure which comprises an optical film assembly, one face of the optical film assembly is provided with a first protective film layer, the other face of the optical film assembly is provided with a second protective film layer, and the second protective film layer and the first protective film layer are matched to be used for protection in the machining process of the optical film assembly. The second protective film layer and the first protective film layer are arranged on the two faces of the optical film assembly respectively, the second protective film layer and the first protective film layer are matched for protection in the machining process of the optical film assembly, the situation that dust, woolen yarn and other impurities adhere to the optical film assembly is reduced, the cleanliness of the optical film assembly is remarkably improved, and the service life of the optical film assembly is prolonged. And the reject ratio of downstream TP 100-grade laminating workshops is greatly reduced, and rework and material waste are greatly reduced.

Description

Technical Field

[0001] This utility model relates to the field of optical film technology, and more specifically, to an optical film structure. Background Technology

[0002] Traditional large roll optical film incoming material structure usually consists of heavy release film, optical film body and PET film. In the processing, these large roll materials are first cut into small rolls in ordinary workshop, and then laser cut into single optical films in the same environment. Finally, these single optical films are sent to a Class 100 workshop for quality inspection (QC).

[0003] However, traditional cutting methods have significant problems: due to the limited cleanliness of large rolls of incoming material and the processing environment (ordinary workshops), the surfaces of the release film and PET film often become contaminated with dust, lint, and other impurities. Although there are subsequent QC processes, these impurities are difficult to completely remove during processing. When these single-sheet optical films are sent to the downstream TP Class 100 lamination workshop for bonding, the impurities on the PET film adhere to the optical film adhesive or TP glass surface during the peeling process, leading to poor bonding. Therefore, we have made improvements to address this issue and proposed an optical film structure. Utility Model Content

[0004] The technical problem to be solved by this utility model embodiment is that the cleanliness of large rolls of incoming materials and the processing environment is limited, and the surface of heavy release film and PET film is often contaminated with dust, lint and other impurities.

[0005] To solve the above-mentioned technical problems, the present invention adopts the following technical solution:

[0006] An optical film structure includes an optical film assembly. A first protective film layer is disposed on one side of the optical film assembly, and a second protective film layer is disposed on the other side. The second protective film layer cooperates with the first protective film layer to protect the optical film assembly during processing. This application, by disposing of a second protective film layer and a first protective film layer on both sides of the optical film assembly, and having the second and first protective film layers cooperate to protect the optical film assembly during processing, reduces the adhesion of dust, lint, and other impurities to the optical film assembly. This not only significantly improves the cleanliness of the optical film assembly but also greatly reduces the defect rate in the downstream Class 100 TP lamination workshop, significantly reducing rework and material waste.

[0007] As a preferred technical solution of this application, both the first protective film layer and the second protective film layer are removable, and the first protective film layer and the second protective film layer are removed after the optical film assembly is processed for packaging in a packaging bag.

[0008] As a preferred technical solution of this application, the outer dimensions of the first protective film layer and the second protective film layer are both larger than the outer dimensions of the optical film assembly, so as to provide sufficient operating space when removing the first protective film layer and the second protective film layer, and to provide better protection for the optical film assembly.

[0009] As a preferred technical solution of this application, the first protective film layer includes a first light release film, on which a first adhesive surface is provided, and the first adhesive surface is connected to one side of the optical film assembly.

[0010] As a preferred technical solution of this application, the second protective film layer includes a second light release film, on which a second adhesive surface is provided, and the second adhesive surface is connected to the other side of the optical film assembly.

[0011] As a preferred technical solution of this application, the surface roughness Ra value of the first and second light release films is no greater than 0.05 μm, so as to reduce the friction coefficient between them and the optical film assembly, reduce the static electricity generated during the removal process, and avoid the adverse effects of static electricity on the optical and electrical performance of the optical film assembly. Static electricity will attract dust and other impurities around it like a strong magnet, causing the optical film assembly to be contaminated again immediately after the protective film layer is removed, resulting in a sharp decline in its optical performance, such as the appearance of light spots and increased haze, which seriously affects the imaging clarity and quality of the product. By using the first and second light release films with low surface roughness, the generation of static electricity is successfully reduced, and the optical and electrical performance of the optical film assembly is effectively protected.

[0012] As a preferred technical solution of this application, the optical film assembly includes an optical film body, one side of which is provided with an optical film adhesive, the optical film adhesive is connected to a first protective member, and the first protective member is connected to a second adhesive surface.

[0013] As a preferred technical solution of this application, the first protective component is a PET film, which is connected between the optical film adhesive and the second adhesive surface.

[0014] As a preferred technical solution of this application, a second protective member is provided on the side of the optical film body away from the optical film adhesive, and the second protective member is connected to the first adhesive surface.

[0015] As a preferred technical solution of this application, the second protective component includes a third adhesive surface connected to the optical film body, wherein a heavy release film layer is connected to the third adhesive surface, and the heavy release film layer is connected to the first adhesive surface.

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

[0017] To address the limited cleanliness of large rolls of incoming materials and processing environments in existing technologies, which often leads to dust, lint, and other impurities adhering to the surface of heavy release films and PET films, this application addresses the issue by setting a second protective film layer and a first protective film layer on both sides of the optical film assembly. The second and first protective film layers work together to protect the optical film assembly during processing, reducing the amount of dust, lint, and other impurities adhering to the optical film assembly. This not only significantly improves the cleanliness of the optical film assembly but also greatly reduces the defect rate in the downstream TP Class 100 lamination workshop, significantly reducing rework and material waste. Attached Figure Description

[0018] Figure 1 This is a schematic diagram of the optical film structure provided in this application;

[0019] Figure 2 Exploded view of the optical film structure provided in this application;

[0020] Figure 3 This is a schematic diagram of the structure of the optical film assembly provided in this application;

[0021] Figure 4 An exploded view of the optical film assembly provided in this application.

[0022] The image shows:

[0023] 1. Optical film assembly; 101. Optical film body; 102. Optical film adhesive; 103. PET film; 104. Heavy release film layer; 105. Third adhesive surface; 2. First light release film; 201. First adhesive surface; 3. Second light release film; 301. Second adhesive surface. Detailed Implementation

[0024] Unless otherwise defined, all technical and scientific terms used herein have the same meaning as commonly understood by one of ordinary skill in the art to which this invention belongs; the terminology used herein in the specification is for the purpose of describing particular embodiments only and is not intended to be limiting of the invention. The reference herein to "embodiment" means that a particular feature, structure, or characteristic described in connection with an embodiment may be included in at least one embodiment of the invention. The appearance of this phrase in various places in the specification does not necessarily refer to the same embodiment, nor is it a separate or alternative embodiment mutually exclusive with other embodiments. It will be explicitly and implicitly understood by those skilled in the art that the embodiments described herein can be combined with other embodiments.

[0025] As described in the background section, traditional cutting methods have significant problems: due to the limited cleanliness of large rolls of incoming materials and the processing environment (ordinary workshops), the surfaces of heavy release films and PET films are often contaminated with dust, lint, and other impurities. Although there is a subsequent QC process, these impurities are difficult to completely remove during the processing. When these single optical films are sent to the downstream TP Class 100 lamination workshop for lamination, during the process of peeling off the PET film, the impurities on it will adhere to the optical film adhesive or TP glass surface, resulting in poor lamination.

[0026] To solve this technical problem, this utility model provides an optical film structure.

[0027] For details, please refer to Figures 1-2 The optical film structure specifically includes:

[0028] The optical film assembly 1 includes an optical film assembly 1, one side of which is provided with a first protective film layer and the other side of which is provided with a second protective film layer. The second protective film layer cooperates with the first protective film layer to protect the optical film assembly 1 during the processing.

[0029] The optical film structure provided by this utility model involves setting a second protective film layer and a first protective film layer on both sides of the optical film assembly 1. The second protective film layer and the first protective film layer work together to protect the optical film assembly 1 during the processing, reducing the amount of dust, lint and other impurities adhering to the optical film assembly 1. This not only significantly improves the cleanliness of the optical film assembly 1, but also greatly reduces the defect rate in the downstream TP Class 100 bonding workshop, greatly reducing rework and material waste.

[0030] To enable those skilled in the art to better understand the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings.

[0031] It should be noted that, unless otherwise specified, the embodiments and features and technical solutions in the present invention can be combined with each other.

[0032] It should be noted that similar labels and letters in the following figures indicate similar items. Therefore, once an item is defined in one figure, it does not need to be further defined and explained in subsequent figures.

[0033] Example 1 of the optical film structure of this utility model

[0034] Please refer to Figures 1-2The optical film structure of this utility model includes: an optical film assembly 1, with a first protective film layer disposed on one side of the optical film assembly 1 and a second protective film layer disposed on the other side of the optical film assembly 1. The second protective film layer cooperates with the first protective film layer to protect the optical film assembly 1 during the processing. This application, by disposing of a second protective film layer and a first protective film layer on both sides of the optical film assembly 1 respectively, and having the second and first protective film layers cooperate to protect the optical film assembly 1 during the processing, reduces the adhesion of dust, lint, and other impurities on the optical film assembly 1. This not only significantly improves the cleanliness of the optical film assembly 1 but also greatly reduces the defect rate in the downstream TP Class 100 lamination workshop, significantly reducing... This avoids rework and material waste. Protective film layers are set on both sides of the optical film assembly 1, creating an effective physical barrier. This greatly reduces the possibility of dust, lint, and other fine impurities coming into contact with the optical film assembly 1. In actual processing environments, there are a large number of tiny particles that are difficult to detect with the naked eye. Once these impurities adhere to the optical film assembly 1, they will greatly reduce the key optical properties of the optical film, such as light transmittance and refractive index, seriously affecting the imaging quality and clarity of the product. The second protective film layer and the first protective film can effectively ensure the stable and reliable optical performance of the optical film assembly 1, maintain its high clarity and accurate optical refraction effect, and provide a solid foundation for subsequent optical applications.

[0035] Furthermore, such as Figures 1-2 As shown, both the first and second protective films are removable. After the optical film assembly 1 is processed, the first and second protective films are removed for packaging. The removable design greatly facilitates the connection of the production process. After the optical film assembly 1 is processed, the operator can quickly and easily remove the first and second protective films to prepare for the subsequent packaging process.

[0036] Furthermore, such as Figures 1-2 As shown, the dimensions of both the first and second protective films are larger than those of the optical film assembly 1. This provides sufficient operating space when removing the first and second protective films and offers better protection for the optical film assembly 1. The larger dimensions also bring many conveniences to the removal operation. When removing the first and second protective films, the operator can easily pinch the edges of the first and second protective films that extend beyond the optical film assembly 1, greatly reducing the difficulty of removal and the precision required for the operation. This effectively reduces the risk of damage to the optical film assembly 1 due to careless operation.

[0037] Example 2 of the optical film structure of this utility model

[0038] Further, the optical film structure of this utility model, such as Figures 1-3As shown, the first protective film layer includes a first light release film 2, on which a first adhesive surface 201 is provided, and the first adhesive surface 201 is connected to one side of the optical film assembly 1. The first adhesive surface 201 of the first light release film 2 enables the protective film layer to be tightly adhered to the optical film assembly 1, ensuring that the first protective film layer is not easily displaced or detached due to external forces during the processing, continuously and effectively blocking the intrusion of external impurities, maintaining the high cleanliness of the optical film assembly 1, thereby ensuring the stability and reliability of its optical performance.

[0039] Furthermore, such as Figures 1-2 As shown, the second protective film layer includes a second light release film 3, on which a second adhesive surface 301 is provided, and the second adhesive surface 301 is connected to the other side of the optical film assembly 1. The second adhesive surface 301 ensures the connection between the second protective film layer and the optical film assembly 1, effectively resisting the contamination and damage of the other side of the optical film assembly 1 by external impurities. Whether in a dusty processing workshop or around processing equipment where there may be tiny particles splashing, it can provide a stable and reliable protective effect for the optical film assembly 1, ensuring that both sides of the product remain clean and flawless.

[0040] Furthermore, such as Figures 1-2 As shown, the surface roughness Ra values ​​of the first light release film 2 and the second light release film 3 are no greater than 0.05 μm, in order to reduce the coefficient of friction between them and the optical film assembly 1, reduce the static electricity generated during the removal process, and avoid the adverse effects of static electricity on the optical and electrical performance of the optical film assembly 1. Static electricity can attract dust and other impurities from the surrounding environment like a strong magnet, causing the optical film assembly 1 to be contaminated again immediately after the protective film layer is removed, resulting in a sharp decline in its optical performance, such as the appearance of light spots and increased haze, which seriously affects the imaging clarity and quality of the product. By using the first light release film 2 and the second light release film 3 with low surface roughness, the generation of static electricity is successfully reduced, effectively protecting the optical and electrical performance of the optical film assembly 1 and improving the reliability and stability of the product.

[0041] Embodiment 3 of the optical film structure of this utility model

[0042] Further, the optical film structure of this utility model, such as Figure 4 As shown, the optical film assembly 1 includes an optical film body 101. An optical film adhesive 102 is provided on one side of the optical film body 101. The optical film adhesive 102 is connected to a first protective member, and the first protective member is connected to a second adhesive surface 301. The first protective member and the second protective member cooperate to protect the optical film body 101 and the optical film adhesive 102, so as to reduce the possibility of the optical film body 101 and the optical film adhesive 102 being contaminated with impurities before use.

[0043] Furthermore, such as Figure 4As shown, the first protective component is a PET film 103, which is connected between the optical film adhesive 102 and the second adhesive surface 301. The PET film 103 has excellent wear resistance and can effectively protect the optical film adhesive 102.

[0044] Furthermore, such as Figure 4 As shown, a second protective member is provided on the side of the optical film body 101 away from the optical film adhesive 102. The second protective member is connected to the first adhesive surface 201. The second protective member can effectively protect the side of the optical film body 101 away from the optical film adhesive 102.

[0045] Furthermore, such as Figure 4 As shown, the second protective component includes a third adhesive surface 105 connected to the optical film body 101. A heavy release film layer 104 is connected to the third adhesive surface 105. The heavy release film layer 104 is connected to the first adhesive surface 201. The heavy release film layer 104 can protect the side of the optical film body 101 away from the optical film adhesive 102, effectively resisting various external impacts, friction and impurity contamination.

[0046] During production, a large roll of optical film structure is supplied; in the workshop, the large roll of optical film structure is cut into small pieces of optical film structure; while QC inspection is carried out in a Class 100 workshop, the second protective film layer and the first protective film layer are removed, and the first adhesive surface 201 and the second adhesive surface 301 are used to adhere and remove dust, lint and other impurities on the optical film assembly 1; several pieces of optical film assembly 1 are immediately packed into a packaging bag to reduce the re-contamination of external dirt.

[0047] Obviously, the embodiments described above are only some embodiments of this utility model, not all embodiments. The accompanying drawings show preferred embodiments of this utility model, but do not limit the patent scope of this utility model. This utility model can be implemented in many different forms; rather, the purpose of providing these embodiments is to provide a more thorough and comprehensive understanding of the disclosure of this utility model. Although this utility model has been described in detail with reference to the foregoing embodiments, those skilled in the art can still modify the technical solutions described in the foregoing specific embodiments, or make equivalent substitutions for some of the technical features. Any equivalent structures made using the content of this utility model specification and drawings, directly or indirectly applied to other related technical fields, are similarly within the patent protection scope of this utility model.

Claims

1. An optical film structure, characterized in that, The optical film assembly (1) includes an optical film assembly (1) with a first protective film layer on one side and a second protective film layer on the other side. The second protective film layer and the first protective film layer work together to protect the optical film assembly (1) during the processing.

2. The optical film structure according to claim 1, characterized in that, Both the first protective film layer and the second protective film layer are removable, and the first protective film layer and the second protective film layer are removed after the optical film assembly (1) is processed for packaging.

3. The optical film structure according to claim 1, characterized in that, The first protective film layer and the second protective film layer are both larger than the outer dimensions of the optical film assembly (1) so as to provide sufficient operating space when removing the first protective film layer and the second protective film layer, and to provide better protection for the optical film assembly (1).

4. The optical film structure according to claim 1, characterized in that, The first protective film layer includes a first light release film (2), on which a first adhesive surface (201) is provided, and the first adhesive surface (201) is connected to one side of the optical film assembly (1).

5. An optical film structure according to claim 4, characterized in that, The second protective film layer includes a second light release film (3), on which a second adhesive surface (301) is provided, and the second adhesive surface (301) is connected to the other side of the optical film assembly (1).

6. An optical film structure according to claim 5, characterized in that, The surface roughness Ra value of the first light release film (2) and the second light release film (3) is not greater than 0.05 μm.

7. An optical film structure according to claim 5, characterized in that, The optical film assembly (1) includes an optical film body (101), one side of which is provided with an optical film adhesive (102), the optical film adhesive (102) is connected to a first protective member, and the first protective member is connected to a second adhesive surface (301).

8. An optical film structure according to claim 7, characterized in that, The first protective component is a PET film (103), which is connected between the optical film adhesive (102) and the second adhesive surface (301).

9. An optical film structure according to claim 8, characterized in that, The optical film body (101) has a second protective member on the side away from the optical film adhesive (102), and the second protective member is connected to the first adhesive surface (201).

10. An optical film structure according to claim 9, characterized in that, The second protective component includes a third adhesive surface (105) connected to the optical film body (101), the third adhesive surface (105) being connected to a heavy release film layer (104), and the heavy release film layer (104) being connected to the first adhesive surface (201).

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