OCA (Optical Clear Adhesive)

Abstract

The utility model relates to the technical field of optical cement, in particular to OCA optical cement which comprises a base layer, optical cement layers and bonding layers, the optical cement layers are arranged at the upper end and the lower end of the base layer, the bonding layers are arranged at the ends, away from the base layer, of the optical cement layers, and porous channels are evenly distributed in the optical cement layers. According to the OCA optical cement, when the OCA optical cement is attached to equipment through a porous channel, gas in bubbles in the pasting process can be rapidly exhausted, the OCA optical cement is matched with a bonding layer, use is convenient, and the bonding efficiency and the product quality are improved.

Description

Technical Field

[0001] The utility model relates to the technical field of optical adhesives, in particular to an OCA optical adhesive. Background Art

[0002] OCA optical adhesive is a transparent adhesive widely used in modern display technology, and is favored for its excellent optical transparency and bonding performance. However, the existing OCA optical adhesive often encounters the problem of air bubble infiltration during the application process, which not only affects the bonding effect, but also seriously affects the optical performance and service life of the display. In addition, the traditional OCA optical adhesive takes a long time in the exhaust process, which delays production efficiency. Utility Model Content

[0003] 1. Technical issues to be solved

[0004] In view of the deficiencies in the prior art, the utility model provides an OCA optical adhesive.

[0005] (II) Technical solution

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an OCA optical adhesive, comprising a base layer, an optical adhesive layer and a bonding layer, wherein the optical adhesive layer is provided at both the upper and lower ends of the base layer, the bonding layer is provided at one end of the optical adhesive layer away from the base layer, and porous channels are evenly distributed in the optical adhesive layer.

[0007] Preferably, the outer diameter of the bonding layer is larger than the outer diameter of the optical adhesive layer.

[0008] In order to facilitate film peeling, the utility model is improved in that film peeling flanges are arranged at the facing ends of the two groups of adhesive layers.

[0009] Preferably, the optical adhesive layer is sprayed with an anti-bubble agent layer close to the bonding layer.

[0010] (III) Beneficial effects

[0011] Compared with the prior art, the utility model provides an OCA optical adhesive, which has the following beneficial effects:

[0012] The OCA optical adhesive has a porous channel, so that when it is attached to the device, the gas in the bubbles during the pasting process can be quickly discharged. With the adhesive layer, it is easy to use and improves the bonding efficiency and product quality. BRIEF DESCRIPTION OF THE DRAWINGS

[0013] Figure 1 This is an exploded schematic diagram of the structure of the utility model;

[0014] Figure 2 The utility model structure Figure 1 A partial enlarged schematic diagram;

[0015] Figure 3 It is a schematic diagram of the main structure of the utility model.

[0016] In the figure: 1, base layer; 2, optical adhesive layer; 3, bonding layer; 4, porous channel; 5, mold release flange; 6, anti-bubble agent layer. DETAILED DESCRIPTION

[0017] The following will be combined with the drawings in the embodiments of the utility model to clearly and completely describe the technical solutions in the embodiments of the utility model. Obviously, the described embodiments are only part of the embodiments of the utility model, not all of the embodiments. Based on the embodiments in the utility model, all other embodiments obtained by ordinary technicians in this field without creative work are within the scope of protection of the utility model.

[0018] See also Figure 1-3 An OCA optical adhesive comprises a base layer 1, an optical adhesive layer 2 and a bonding layer 3, wherein the optical adhesive layer 2 is disposed at both upper and lower ends of the base layer 1, the bonding layer 3 is disposed at one end of the optical adhesive layer 2 away from the base layer 1, and porous channels 4 are uniformly distributed in the optical adhesive layer 2.

[0019] The optical adhesive layer 2 is bonded to the base layer 1, and the bonding layer 3 is stably connected to the optical adhesive layer 2. When one side of the bonding layer 3 is removed to bond the optical adhesive layer 2 to the material, if bubbles are generated, the bubbles are squeezed from the center to the edge when the other bonding layer 3 is bonded to the optical adhesive layer 2, and the gas is discharged through the porous channel 4, which is convenient to use.

[0020] If the outer diameter of the adhesive layer 3 is the same as that of the optical adhesive layer 2, there is a problem of impurities adhering to the outer wall of the optical adhesive layer 2. Therefore, the outer diameter of the adhesive layer 3 is larger than that of the optical adhesive layer 2. The two groups of adhesive layers 3 are provided with peeling flanges at the facing ends to peel off the adhesive layer 3, and at the same time, provide stable protection for the optical adhesive layer 2 and the base layer 1 when they are not peeled off. The optical adhesive layer 2 is sprayed with an anti-bubble agent layer 6 near the adhesive layer 3 to further prevent the generation of bubbles.

[0021] In order to explain in detail the possible application scenarios, technical principles, specific schemes that can be implemented, and the purposes and effects that can be achieved, the following is a detailed description of the specific embodiments listed in conjunction with the accompanying drawings. The embodiments described herein are only used to more clearly illustrate the technical solutions of the present application, and are therefore only used as examples, and cannot be used to limit the scope of protection of the present application.

[0022] Reference to "embodiment" herein means that the specific features, structures or characteristics described in conjunction with the embodiment may be included in at least one embodiment of the present application. The term "embodiment" appearing in various places in the specification does not necessarily refer to the same embodiment, nor does it particularly limit its independence or association with other embodiments. In principle, in the present application, as long as there is no technical contradiction or conflict, the various technical features mentioned in the embodiments can be combined in any way to form a corresponding implementable technical solution.

[0023] Unless otherwise defined, the technical terms used in this document have the same meanings as those generally understood by those skilled in the art to which this application belongs; the use of relevant terms in this document is only for describing specific embodiments and is not intended to limit this application.

[0024] Although embodiments of the present invention have been shown and described, it will be appreciated by those skilled in the art that various changes, modifications, substitutions and variations may be made to the embodiments without departing from the principles and spirit of the present invention, and that the scope of the present invention is defined by the appended claims and their equivalents.

Claims

1. An OCA optical adhesive, comprising a base layer (1), an optical adhesive layer (2) and an adhesive layer (3), characterized in that: The optical adhesive layer (2) is disposed at both the upper and lower ends of the base layer (1), the bonding layer (3) is disposed at one end of the optical adhesive layer (2) away from the base layer (1), and porous channels (4) are evenly distributed in the optical adhesive layer (2).

2. The OCA optical adhesive according to claim 1, characterized in that: The outer diameter of the bonding layer (3) is greater than the outer diameter of the optical adhesive layer (2).

3. The OCA optical adhesive according to claim 2, characterized in that: The facing ends of the two groups of adhesive layers (3) are provided with film peeling flanges (5).

4. The OCA optical adhesive according to claim 3, characterized in that: The optical adhesive layer (2) is sprayed with an anti-bubble agent layer (6) near the bonding layer (3).

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