OCA optical cement protective film structure

By incorporating different colored tear handles into the OCA optical adhesive protective film structure, the problem of distinguishing the front and back sides of OCA optical adhesive is solved, achieving rapid identification and saving material costs, thereby improving the production efficiency of display modules.

CN223974029UActive Publication Date: 2026-03-06TRULY OPTO ELECTRONICS
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Patent Information

Application Number
CN202520327249.7
Authority / Receiving Office
CN · China
Patent Type
Utility models(China)
Current Assignee / Owner
Filing Date
2025-02-26
Publication Date
2026-03-06
Estimated Expiration
2035-02-26

AI Technical Summary

Technical Problem

Existing OCA optical adhesives make it difficult to quickly distinguish the front and back sides in display module production, and the use of adhesive paper increases processing costs.

Method used

Design an OCA optical adhesive protective film structure by setting tear handles on the front and back protective films respectively, and setting different colored layers on the surface of the tear handles. The tear handles are staggered to facilitate quick identification of the front and back, without adding extra adhesive paper.

Benefits of technology

It enables rapid identification of the front and back sides of OCA optical adhesive, saving material costs, improving production efficiency, and avoiding the use of adhesive film.

✦ Generated by Eureka AI based on patent content.

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Abstract

The utility model discloses an OCA (Optical Clear Adhesive) protective film structure which comprises an OCA body, a front protective film and a back protective film, the front protective film and the back protective film are respectively arranged on two side surfaces of the OCA optical cement body, and a front tearing handle is arranged on one side of the front protective film; a reverse tearing handle is arranged on one side of the reverse protective film; the front tearing handle and the back tearing handle are arranged in a staggered mode, a front color layer is arranged on the surface of the front tearing handle, a back color layer is arranged on the surface of the back tearing handle, and the front color layer and the back color layer are different in color. Therefore, the front protective film and the back protective film can be quickly identified through colors; meanwhile, the front tearing handle and the back tearing handle are arranged in a staggered manner, so that the protective film can be quickly torn off through the tearing handles; therefore, the protective film can be quickly torn off without additionally arranging mucosa paper, the material cost can be saved, and the production efficiency is improved.
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Description

Technical Field

[0001] This utility model relates to the field of display module manufacturing technology, and in particular to an OCA optical adhesive protective film structure. Background Technology

[0002] In the production of display modules, OCA (Optically Clear Adhesive) optical adhesive is widely used to bond the LCD screen and cover glass together. However, OCA optical adhesive is nearly transparent, making it difficult to distinguish the front and back. Furthermore, the protective film for OCA optical adhesive has a shape that is basically the same as the adhesive itself, requiring an adhesive film to be applied to the surface of the protective film before peeling it off and pasting it on. However, peeling off the protective film requires additional adhesive film, thus increasing processing costs.

[0003] In view of the above, an OCA optical adhesive protective film structure is proposed, which can quickly identify the front and back of the OCA optical adhesive, and at the same time, it can quickly remove the protective film without adding additional adhesive paper, saving material costs and thus improving production efficiency. Utility Model Content

[0004] The purpose of this invention is to overcome the shortcomings of the existing technology and provide an OCA optical adhesive protective film structure that can not only quickly identify the front and back of the OCA optical adhesive, but also achieve quick removal of the protective film without the need for additional adhesive paper, thus saving material costs and improving production efficiency.

[0005] The objective of this utility model is achieved through the following technical solution:

[0006] An OCA optical adhesive protective film structure includes: an OCA optical adhesive body, a front protective film, and a back protective film; the front protective film is attached to the front side of the OCA optical adhesive body, and a front tear handle is provided on one side of the front protective film, and the front tear handle is folded inward toward the front protective film; the back protective film is attached to the back side of the OCA optical adhesive body, and a back tear handle is provided on one side of the back protective film, and the back tear handle is folded inward toward the front protective film; the front tear handle and the back tear handle are offset from each other, and the surface of the front tear handle is provided with a front color layer, and the surface of the back tear handle is provided with a back color layer, the colors of the front color layer and the back color layer being different.

[0007] In one embodiment, a model display section is provided on one side of the front protective film, the model display section is folded inward toward the front protective film, and an OCA model layer is provided on the model display section.

[0008] In one embodiment, the surface of the front tear handle is provided with a frosted layer.

[0009] In one embodiment, the surface of the reverse tear handle is provided with a frosted layer.

[0010] In one embodiment, the front tear handle faces one side of the front protective film and is not in direct contact with the front protective film.

[0011] In one embodiment, the reverse tear handle faces one side of the reverse protective film and is not in direct contact with the reverse protective film.

[0012] In one embodiment, the front tear handle and the back tear handle are located on the same side of the OCA optical adhesive body.

[0013] In one embodiment, the front tear handle and the back tear handle are located on opposite sides of the OCA optical adhesive body.

[0014] In one embodiment, the front protective film is bonded to the OCA optical adhesive body via an adhesive.

[0015] In one embodiment, the reverse protective film is bonded to the OCA optical adhesive body via an adhesive.

[0016] Compared with the prior art, the present invention has at least the following advantages:

[0017] This utility model's OCA optical adhesive protective film structure features a front tear handle on the front protective film and a back tear handle on the back protective film. A front color layer and a back color layer are respectively applied to the surfaces of the front and back tear handles, with the front and back color layers being different colors to facilitate quick identification of the front and back protective films by color. Furthermore, the front and back tear handles are staggered to prevent overlap, making it easier to quickly tear off the protective film. This not only eliminates the need for additional adhesive paper, enabling rapid removal of the protective film, but also saves material costs and improves production efficiency. Attached Figure Description

[0018] To more clearly illustrate the technical solutions of the embodiments of this utility model, the accompanying drawings used in the embodiments will be briefly described below.

[0019] Figure 1 This is a schematic diagram of the stacked structure of the OCA optical adhesive protective film structure in one embodiment of the present invention;

[0020] Figure 2 This is a front view schematic diagram of the OCA optical adhesive protective film structure in one embodiment of the present invention; Detailed Implementation

[0021] To facilitate understanding of this utility model, a more comprehensive description of this utility model will be given below with reference to the accompanying drawings.

[0022] Please see Figure 1 and Figure 2 As shown, an OCA optical adhesive protective film structure 10 includes: an OCA optical adhesive body 100, a front protective film 200, and a back protective film 300. The front protective film 200 is attached to the front side of the OCA optical adhesive body 100, and a front tear handle 210 is provided on one side of the front protective film 200, and the front tear handle 210 is folded inward toward the front protective film 200. The back protective film 300 is attached to the back side of the OCA optical adhesive body 100, and a back tear handle 310 is provided on one side of the back protective film 300, and the back tear handle 310 is folded inward toward the front protective film 200. The front tear handle 210 and the back tear handle 310 are staggered, and the surface of the front tear handle 210 is provided with a front color layer, and the surface of the back tear handle 310 is provided with a back color layer. The colors of the front color layer and the back color layer are different.

[0023] It should be noted that by setting a front tear handle 210 on the front protective film 200 and a back tear handle 310 on the back protective film 300, and by setting a front color layer and a back color layer on the surface of the front tear handle 210 and the back tear handle 310 respectively, and making the colors of the front color layer and the back color layer different, it is easy to quickly identify the front protective film 200 and the back protective film 300 by color. At the same time, the front tear handle 210 and the back tear handle 310 are staggered to avoid overlapping, which makes it easier to quickly tear off the protective film by tearing the handle. In this way, not only can the protective film be quickly torn off without adding extra adhesive paper, but it can also save material costs and improve production efficiency. The front and back color layers can be applied to the front tear handle 210 or the back tear handle 310 respectively by printing or spraying. The colors can be vibrant, such as red, green, blue, or yellow, to facilitate quick identification of the front and back sides. Furthermore, the front and back tear handles 210 and 310 are folded inwards to reduce the risk of them being lifted by foreign objects, thus preventing the protective film 200 or 300 from being peeled off and ensuring protection of the OCA optical adhesive body 100. In this embodiment, the front tear handle 210 and the back tear handle 310 can be 6mm*8mm or 5mm*5mm in size. The protective film materials for both sides can be DMU-ASJa5050-003 from Damei or H86U4T-NN-050 from Huizhixing, with a thickness of 0.06-0.09mm, a tear-off voltage of ≤500V, and a surface resistance of 10^9Ω-10^11Ω. It is an anti-static protective film.

[0024] Existing OCA optical adhesives are not only difficult to distinguish between the front and back sides, but also difficult to differentiate between different models. Current practices only differentiate the models on the outer packaging of the OCA optical adhesive, without individual sheet differentiation. If the outer packaging is lost, it easily leads to material mixing problems. Therefore, to facilitate quick differentiation of different models of OCA optical adhesives, in one embodiment, a model display section 220 is provided on one side of the front protective film 200. The model display section 220 is folded inward toward the front protective film 200, and an OCA model layer is provided on the model display section 220. The OCA model layer can be formed on the model display section 220 by ink printing or spraying. At the same time, the model display section 220 is not located on the main body of the front protective film 200, so it does not affect material inspection. In this embodiment, the side of the model display section 220 facing the front protective film 200 does not directly contact the front protective film 200.

[0025] In one embodiment, the surface of the front tear handle 210 is provided with a frosted layer. That is, a frosted coating is printed or sprayed on the front tear handle 210, so that the front tear handle 210 has a matte, non-glossy effect. In this way, the front tear handle 210 can be clearly distinguished from the glossy effect of the front protective film 200, thereby enabling the front tear handle 210 to be quickly identified.

[0026] In one embodiment, the surface of the reverse tear handle 310 is provided with a frosted layer. That is, a frosted coating is printed or sprayed on the reverse tear handle 310, so that the reverse tear handle 310 has a matte, non-glossy effect. In this way, the reverse tear handle 310 can be clearly distinguished from the glossy color of the reverse protective film 300, thereby enabling the reverse tear handle 310 to be quickly identified.

[0027] In one embodiment, the front tear handle 210 faces the side of the front protective film 200 and is not in direct contact with the front protective film 200. That is, the front tear handle 210 and the front protective film 200 are not in direct contact; the front tear handle 210 is suspended in the air. This allows the front protective film 200 to be lifted quickly using the front tear handle 210, improving work efficiency.

[0028] Similarly, the side of the reverse tear handle 310 facing the reverse protective film 300 is not in direct contact with the reverse protective film 300. That is, the reverse tear handle 310 and the reverse protective film 300 are not in direct contact; the reverse tear handle 310 is suspended in the air. This allows for quick and easy lifting of the reverse protective film 300, improving work efficiency.

[0029] Preferably, the front tear handle 210 and the back tear handle 310 are located on the same side of the OCA optical adhesive body 100. However, the front tear handle 210 and the back tear handle 310 are staggered and do not overlap, so that the protective film can be quickly peeled off using the front tear handle 210 and the back tear handle 310. In another embodiment, the front tear handle 210 and the back tear handle 310 are located on opposite sides of the OCA optical adhesive body 100.

[0030] In one embodiment, the front protective film 200 is bonded to the OCA optical adhesive body 100 via adhesive 400. In this embodiment, the adhesive is a weakly tack adhesive, which makes it easier to remove the front protective film 200.

[0031] In one embodiment, the reverse protective film 300 is bonded to the OCA optical adhesive body 100 via adhesive 400. In this embodiment, the adhesive is a weakly tack adhesive, which makes it easier to remove the reverse protective film 300.

[0032] The embodiments described above are merely illustrative of several implementations of this utility model, and while the descriptions are relatively specific and detailed, they should not be construed as limiting the scope of the utility model patent. It should be noted that those skilled in the art can make various modifications and improvements without departing from the concept of this utility model, and these all fall within the protection scope of this utility model. Therefore, the protection scope of this utility model patent should be determined by the appended claims.

Claims

1. An OCA optical adhesive protection film structure, characterized in that, The application relates to an OCA optical adhesive body, a front protective film and a back protective film. The application relates to an OCA optical adhesive body, a front protective film and a back protective film. The application relates to an OCA optical adhesive body, a front protective film and a back protective film. The application relates to an OCA optical adhesive body, a front protective film and a back protective film. The application relates to an OCA optical adhesive body, a front protective film and a back protective film. 2.The OCA optical adhesive protection film structure of claim 1, wherein, The application relates to an OCA optical adhesive body, a front protective film and a back protective film. 3.The OCA optical adhesive protection film structure of claim 1, wherein, The application relates to an OCA optical adhesive body, a front protective film and a back protective film. 4.The OCA optical adhesive protection film structure of claim 1, wherein, The application relates to an OCA optical adhesive body, a front protective film and a back protective film. 5.The OCA optical adhesive protection film structure of claim 1, wherein, The application relates to an OCA optical adhesive body, a front protective film and a back protective film. 6.The OCA optical adhesive protection film structure of claim 1, wherein, The application relates to an OCA optical adhesive body, a front protective film and a back protective film.

7. The OCA optical glue protection film structure according to claim 1, wherein, The application relates to an OCA optical adhesive body, a front protective film and a back protective film. 8.The OCA optical adhesive protection film structure of claim 1, wherein, The application relates to an OCA optical adhesive body, a front protective film and a back protective film. 9.The OCA optical adhesive protection film structure of claim 1, wherein, The application relates to an OCA optical adhesive body, a front protective film and a back protective film.

10. The OCA optical glue protection film structure of claim 1, wherein, The application relates to an OCA optical adhesive body, a front protective film and a back protective film. The application relates to an OCA optical adhesive body, a front protective film and a back protective film. The application relates to an OCA optical adhesive body, a front protective film and a back protective film. The application relates to an OCA optical adhesive body, a front protective film and a back protective film. The application relates to an OCA optical adhesive body, a front protective film and a back protective film. The application relates to an OCA optical adhesive body, a front protective film and a back protective film. The application relates to an OCA optical adhesive body, a front protective film and a back protective film. The application relates to an OCA optical adhesive body, a front protective film and a back protective film. The application relates to an OCA optical adhesive body, a front protective film and a back protective film. The application relates to an OCA optical adhesive body, a front protective film and a back protective film. The application relates to an OCA optical adhesive body, a front protective film and a back protective film. The application relates to an OCA optical adhesive body, a front protective film and a back protective film. The application relates to an OCA optical adhesive body, a front protective film and a back protective film. The application relates to an OCA optical adhesive body, a front protective film and a back protective film. The application relates to an OCA optical adhesive body, a front protective film and a back protective film. The application relates to an OCA optical adhesive body, a front protective film and a back protective film. The application relates to an OCA optical adhesive body, a front protective film and a back protective film. The application relates to an OCA optical adhesive body, a front protective film and a back protective film. The application relates to an OCA optical adhesive body, a front protective film and a back protective film. The application relates to an OCA optical adhesive body, a front protective film and a back protective film. The application relates to an OCA optical adhesive body, a front protective film and a back protective film. The application relates to an OCA optical adhesive body, a front protective film and a back protective film. The application relates to an OCA optical adhesive body, a front protective film and a back protective film. The application relates to an OCA optical adhesive body, a front protective film and a back protective film. The application relates to an OCA optical adhesive body, a front protective film and a back protective film. The application relates to an OCA optical adhesive body, a front protective film and a back protective film. The application relates to an OCA optical adhesive body, a front protective film and a back protective film. The application relates to an OCA optical adhesive body, a front protective film and a back protective film. The application relates to an OCA optical adhesive body, a front protective film and a back protective film. The application relates to an OCA optical adhesive body, a front protective film and a back protective film. The application relates to an OCA optical adhesive body, a front protective film and a back protective film. The application relates to an OCA optical adhesive body, a front protective film and a back protective film. The application relates to an OCA optical adhesive body, a front protective film and a back protective film. The application relates to an OCA optical adhesive body, a front protective film and a back protective film