Optical transparent adhesive tape
By designing the labeling part in the excess part of the optical transparent gel, the problem that operators find it difficult to identify the front and back sides and the head and tail are solved, and the misplacement is prevented with reliability and reduce the product defect rate.
Patent Information
- Application Number
- CN202420897183.0
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- Filing Date
- 2024-04-26
- Publication Date
- 2025-06-06
- Estimated Expiration
- 2034-04-26
AI Technical Summary
Due to its strong transparency, existing optical transparent gels make it difficult for operators to identify the front and back sides and the head and tail, which often leads to the material being released and reversed, causing product defects.
An optical transparent gel is designed, including a colloidal layer, a first release film and a second release film, and an identification portion is provided in the beyond portion for distinguishing the first side and the second side of the colloidal layer, as well as the head and tail ends.
Through the setting of the marking part, the operator can easily identify the front and back sides and head and tail of the colloid layer, effectively prevent misplacement and reduce product defect rate.
Smart Images
Figure CN222948292U_ABST
Abstract
Description
Technical Field
[0001] The utility model relates to the field of display technology, in particular to an optically transparent adhesive. Background Art
[0002] Currently, the display module is generally bonded with optically clear adhesive (OCA). Due to its transparency, ordinary operators cannot identify the front and back sides. Since the head and tail of the screen are designed similarly, the head and tail cannot be identified. During the production process, abnormalities such as the front and back sides or the head and tail of the material being placed upside down often occur, resulting in product defects and affecting the use or reliability of the display screen.
[0003] The conventional solution is to use the physical features of each project to provide real-time targeted training to employees to identify the front and back sides and the head and tail, and then have the feeders place the optical transparent adhesive materials correctly on the material carrier to maintain production. However, placement is often reversed and is not easy to detect, resulting in batch product defects. Utility Model Content
[0004] The main purpose of the utility model is to provide an optically transparent adhesive, aiming to reliably prevent misplacement and reduce the product defect rate.
[0005] To achieve the above-mentioned purpose, the utility model provides an optically transparent adhesive, comprising:
[0006] a colloid layer having opposing first and second sides;
[0007] a first release film, which covers the first side of the colloid layer and is disposed beyond the peripheral edge of the colloid layer to have a protruding portion protruding from the peripheral edge of the colloid layer; and
[0008] A second release film is provided to cover the second side of the colloid layer and to extend beyond the outer peripheral edge of the colloid layer;
[0009] Wherein, the protruding portion is provided with a marking portion, and the marking portion is used to distinguish the first side and the second side of the colloid layer, and the first and tail ends of the colloid layer.
[0010] Optionally, the identification portion includes an alignment mark.
[0011] Optionally, at least two alignment marks are provided, and the two alignment marks are asymmetrically arranged on the first release film.
[0012] Optionally, the alignment mark comprises an alignment silk-screen mark, and the alignment silk-screen mark is arranged on a side of the protruding portion away from the colloid layer.
[0013] Optionally, the identification portion includes an engraved mark.
[0014] Optionally, the identification portion is arranged on the outer peripheral edge of the protruding portion.
[0015] Optionally, the corners of the first release film are chamfered to form the marking portion.
[0016] Optionally, the outer peripheral edge of the first release film has a notch to form the marking portion.
[0017] Optionally, there are at least two notches, and the two notches are asymmetrically arranged on the first release film.
[0018] Optionally, a distance that the second release film protrudes from the outer peripheral edge of the colloid layer is greater than a distance that the first release film protrudes from the outer peripheral edge of the colloid layer.
[0019] In the technical solution of the utility model, the optically transparent adhesive comprises a colloid layer, a first release film, and a second release film, wherein the colloid layer has a first side and a second side opposite to each other; the first release film is covered on the first side of the colloid layer and is arranged to extend beyond the peripheral edge of the colloid layer to have an extending portion protruding from the peripheral edge of the colloid layer; the second release film is covered on the second side of the colloid layer and is arranged to extend beyond the peripheral edge of the colloid layer; wherein the extending portion is provided with an identification portion, and the identification portion is used to distinguish the first side and the second side of the colloid layer, as well as the head and tail ends of the colloid layer, so that the first side and the second side of the colloid layer, as well as the head and tail ends of the colloid layer can be easily identified through the setting of the identification portion, thereby reliably preventing misplacement and reducing the product defect rate. BRIEF DESCRIPTION OF THE DRAWINGS
[0020] In order to more clearly illustrate the embodiments of the utility model or the technical solutions in the prior art, the drawings required for use in the embodiments or the description of the prior art will be briefly introduced below. Obviously, the drawings described below are only some embodiments of the utility model. For ordinary technicians in this field, other drawings can be obtained based on the structures shown in these drawings without paying creative work.
[0021] Figure 1 A schematic cross-sectional view of the optically transparent adhesive provided by the utility model;
[0022] Figure 2 for Figure 1 A schematic front view of a first embodiment of the optically transparent adhesive;
[0023] Figure 3 for Figure 1 A schematic front view of a second embodiment of the optically transparent adhesive;
[0024] Figure 4 for Figure 1 A schematic front view of a third embodiment of the optically transparent adhesive;
[0025] Figure 5 for Figure 1 A schematic front view of a fourth embodiment of the optically transparent adhesive;
[0026] Figure 6 for Figure 1 A front view schematic diagram of a fifth embodiment of the optically transparent adhesive in FIG.
[0027] Description of Figure Numbers:
[0028] Label name Label name 100 Optical clear adhesive 2111 Registration mark 1 Colloid layer 2112 Engraving mark 2 First release film 2113 Chamfer 21 Exceeding the Department 2114 gap 211 Logo Department 3 Second release film
[0029] The realization of the purpose, functional features and advantages of the utility model will be further explained in conjunction with embodiments and with reference to the accompanying drawings. DETAILED DESCRIPTION
[0030] 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 of 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.
[0031] It should be noted that if the embodiments of the present invention involve directional indications (such as up, down, left, right, front, back...), the directional indications are only used to explain the relative position relationship, movement status, etc. between the components under a certain specific posture (as shown in the accompanying drawings). If the specific posture changes, the directional indication will also change accordingly.
[0032] In addition, if there are descriptions involving "first", "second", etc. in the embodiments of the utility model, the descriptions of "first", "second", etc. are only used for descriptive purposes and cannot be understood as indicating or implying their relative importance or implicitly indicating the number of technical features indicated. Therefore, the features defined as "first" and "second" may explicitly or implicitly include at least one of the features. In addition, the meaning of "and / or" appearing in the full text includes three parallel schemes. Taking "A and / or B" as an example, it includes scheme A, or scheme B, or a scheme that satisfies both A and B. In addition, the technical solutions between the various embodiments can be combined with each other, but it must be based on the ability of ordinary technicians in this field to implement. When the combination of technical solutions is contradictory or cannot be implemented, it should be deemed that such a combination of technical solutions does not exist and is not within the scope of protection required by the utility model.
[0033] Currently, the display module is generally bonded with optically clear adhesive (OCA). Due to its transparency, ordinary operators cannot identify the front and back sides. Since the head and tail of the screen are designed similarly, the head and tail cannot be identified. During the production process, abnormalities such as the front and back sides or the head and tail of the material being placed upside down often occur, resulting in product defects and affecting the use or reliability of the display screen.
[0034] The conventional solution is to use the physical features of each project to provide real-time targeted training to employees to identify the front and back sides and the head and tail, and then have the feeders place the optical transparent adhesive materials correctly on the material carrier to maintain production. However, placement is often reversed and is not easy to detect, resulting in batch product defects.
[0035] In view of this, the utility model provides an optically transparent adhesive, aiming to reliably prevent misplacement and reduce product defect rate. Figures 1 to 6 The embodiment of the optically transparent adhesive provided by the utility model is Figures 2 to 6 In order to more clearly illustrate the technical solution of the present application, the second release film is hidden.
[0036] In the embodiments of the present invention, please refer to Figure 1 and Figure 2 The optically transparent adhesive 100 includes a colloid layer 1, a first release film 2, and a second release film 3. The colloid layer 1 has an opposite first side (not shown in the figure, with Figure 1 The upper side in the figure) and the second side (not shown in the figure, Figure 1 The first release film 2 is covered on the first side of the colloid layer 1 and is arranged to extend beyond the peripheral edge of the colloid layer 1, so as to have an extending portion 21 protruding from the peripheral edge of the colloid layer 1; the second release film 3 is covered on the second side of the colloid layer 1 and is arranged to extend beyond the peripheral edge of the colloid layer 1; wherein the extending portion 21 is provided with an identification portion 211, and the identification portion 211 is used to distinguish the first side and the second side of the colloid layer 1, as well as the first and tail ends of the colloid layer 1.
[0037] In the technical solution of the present invention, the first side and the second side of the colloid layer 1 and the leading and trailing ends of the colloid layer 1 can be easily identified by setting the marking portion 211 , thereby reliably preventing misplacement and reducing product defect rate.
[0038] It should be noted that release films are attached to both sides of the colloid layer 1 to ensure the cleanliness and stability of the colloid layer 1 during the assembly process. In actual applications, the order of tearing off the two release films depends on the specific production process and design requirements. In this application, the release film to be torn off first in the production process is called the second release film 3, and the release film to be torn off later is called the first release film 2. The identification portion 211 is set on the excess portion 21 of the first release film 2, which can avoid the setting of the identification portion 211. The impact on the protective function of the first release film 2 can also avoid blocking the colloid layer 1, while ensuring the identification function of the entire processing process, ensuring the quality of the optically transparent adhesive 100. Of course, under normal circumstances, the second release film 3 torn off first is a light release film, and the first release film 2 torn off later is a heavy release film. This application does not limit it, and it can be selected according to the actual production process and design requirements.
[0039] It can be understood that the identification portion 211 is arranged on the protruding portion 21 of the first release film 2, that is, the release film provided with the identification portion 211 is the first release film 2, and the first release film 2 is covered on the first side of the colloid layer 1. In this way, the first side and the second side of the colloid layer 1 can be distinguished. As for how to distinguish the head and tail ends of the colloid layer 1, this application does not limit it. For example, the identification portion 211 is a text mark, and the head and tail ends are directly indicated by text information.
[0040] In one embodiment, see the attached Figure 2 The identification portion 211 includes an alignment mark 2111, which can distinguish the first side and the second side of the colloid layer 1, as well as the first and tail ends of the colloid layer 1, and can also realize the positioning and alignment of the optical transparent adhesive 100, which is beneficial to improve the accuracy of the product's bonding position, improve the bonding accuracy, and enhance the product quality. It can be understood that the identification portion 211 is an alignment mark 2111, which is not only beneficial to manual identification, but also can introduce CCD camera optical instruments to take real-time photos and identify directions during assembly, while improving the reliability of preventing misplacement, and can also improve the automation of the assembly process and improve assembly efficiency. It can also be understood that, in order to facilitate identification, the alignment mark 2111 is preferably a cross-shaped or L-shaped shape with two mutually perpendicular line segments. It can also be understood that only one alignment mark 2111 can be set. For example, an L-shaped alignment mark 2111 can identify the beginning and end of the colloid layer 1 through the L-shaped posture. For example, a cross-shaped alignment mark 2111 is set to deviate from the symmetry center of the first release film 2, and the beginning and end of the colloid layer 1 can also be identified through the specific position of the cross-shaped alignment mark 2111.
[0041] In one embodiment, at least two alignment marks 2111 are provided, and the two alignment marks 2111 are asymmetrically arranged on the first release film 2. At least two alignment marks 2111 are provided, which can improve the positioning and alignment effects. The two alignment marks 2111 are asymmetrically arranged on the first release film 2, and the head and tail ends of the colloid layer 1 can be judged by the distribution state of the two alignment marks 2111.
[0042] It can be understood that the alignment mark 2111 is a colored mark for facilitating alignment, and various methods such as embossing can be used to set the colored mark on the surface of the first release film 2. In one embodiment, the alignment mark 2111 includes an alignment silk screen mark, which is set on the side of the protruding portion 21 away from the colloid layer 1. The alignment mark 2111 set by silk screen can provide a clear and lasting mark, while not damaging the first release film 2, and can maintain the integrity and flatness of the first release film 2.
[0043] In one embodiment, refer to Figure 3 The identification portion 211 includes an engraved mark 2112. The engraved mark 2112 generates almost no consumables cost, and the operation process is simpler. Therefore, the engraved mark 2112 can reduce the production cost of the optically transparent adhesive 100. It can be understood that the thickness of the first release film 2 is generally in the micron level. The engraved mark 2112 can penetrate the first release film 2 to form a hollow, which can be easily identified and distinguished. Specifically, the engraved mark 2112 can also be a product model mark. The engraved mark 2112 contains product model information, which is beneficial to material management, ensures the convenience and correctness of material selection, and reduces product defect rate.
[0044] In one embodiment, see the attached Figures 4 to 6 The identification portion 211 is arranged at the outer peripheral edge of the protruding portion 21, that is, the identification portion 211 is formed by changing the shape of the outer contour line of the protruding portion 21. Compared with setting the alignment mark 2111 on the surface of the protruding portion 21 or engraving the mark 2112 on the protruding portion 21, the identification portion 211 can be directly formed by the production process of the first release film 2, and there is no need to perform silk screen printing or engraving after the first release film 2 is formed, which simplifies the production process of the first release film 2. The outer contour of the first release film 2 is changed, which can be more intuitively identified, thereby reliably preventing misplacement and reducing the product defect rate.
[0045] In one embodiment, please refer to the attached Figure 4The corners of the first release film 2 are chamfered 2113 to form the identification portion 211. The corners of the first release film 2 are chamfered 2113, which can be identified very intuitively, thereby reliably preventing misplacement and reducing product defect rate. Specifically, the colloid layer 1, the first release film 2, and the second release film 3 are all rectangular, and one corner of the first release film 2 is chamfered 2113. The chamfer 2113 can be used to distinguish the first side, the second side, and the first and tail ends of the colloid layer 1.
[0046] In one embodiment, refer to Figure 5 and Figure 6 The outer edge of the first release film 2 has a notch 2114 to form the identification portion 211. The outer edge of the first release film 2 has a notch 2114, which can be very intuitively identified, thereby reliably preventing misplacement and reducing product defect rate. Specifically, the colloid layer 1, the first release film 2, and the second release film 3 are all arranged in a rectangular shape, and one side of the first release film 2 has a notch 2114, which can be used to distinguish the first side, the second side, and the first and tail ends of the colloid layer 1.
[0047] For further details, see Figure 6 , at least two notches 2114 are provided, and the two notches 2114 are asymmetrically arranged on the first release film 2. The arrangement of multiple notches 2114 can form multiple identification parts, and the two notches 2114 are asymmetrically arranged on the first release film 2, and the head and tail ends of the colloid layer 1 can be judged by the distribution state of the two notches 2114. Specifically, the colloid layer 1, the first release film 2, and the second release film 3 are all arranged in a rectangular shape, and the two long sides of the first release film 2 have notches 2114, and the first side, the second side, and the head and tail ends of the colloid layer 1 can be distinguished by the arrangement of the two notches 2114.
[0048] In one embodiment, refer to Figure 1 , the distance that the second release film 3 protrudes toward the outer peripheral edge of the colloid layer 1 is greater than the distance that the first release film 2 protrudes toward the outer peripheral edge of the colloid layer 1. It can be understood that the first release film 2 and the second release film 3 are both torn off by applying external force in an attached manner, the second release film 3 is torn off first, and the first release film 2 is torn off later. Since the distance that the second release film 3 protrudes toward the outer peripheral edge of the colloid layer 1 is greater than the distance that the first release film 2 protrudes toward the outer peripheral edge of the colloid layer 1, the second release film 3 can completely cover the range of the first release film 2 during the process of being adhered and torn off the second release film 3, thereby preventing the first release film 2 from being adhered to and affecting the smooth progress of the assembly process, thereby improving assembly efficiency and product quality.
[0049] The above are only preferred embodiments of the present invention, and do not limit the patent scope of the present invention. All equivalent structural changes made by using the contents of the present invention specification and drawings under the concept of the present invention, or directly / indirectly applied in other related technical fields are included in the patent protection scope of the present invention.
Claims
1. An optically transparent adhesive, characterized in that: include: a colloid layer having opposing first and second sides; a first release film, which covers the first side of the colloid layer and is disposed beyond the peripheral edge of the colloid layer to have a protruding portion protruding from the peripheral edge of the colloid layer; and A second release film is provided to cover the second side of the colloid layer and to extend beyond the outer peripheral edge of the colloid layer; Wherein, the protruding portion is provided with a marking portion, and the marking portion is used to distinguish the first side and the second side of the colloid layer, and the first and tail ends of the colloid layer.
2. The optically transparent adhesive according to claim 1, characterized in that: The identification portion includes an alignment mark.
3. The optically transparent adhesive according to claim 2, characterized in that: At least two alignment marks are provided, and the two alignment marks are asymmetrically arranged on the first release film.
4. The optically transparent adhesive according to claim 2, characterized in that: The alignment mark comprises an alignment silk-screen mark, and the alignment silk-screen mark is arranged on a side of the protruding portion away from the colloid layer.
5. The optically transparent adhesive according to claim 1, characterized in that: The identification portion includes an engraved mark.
6. The optically transparent adhesive according to claim 1, characterized in that: The marking portion is arranged on the outer peripheral edge of the exceeding portion.
7. The optically transparent adhesive according to claim 6, characterized in that: The corners of the first release film are chamfered to form the marking portion.
8. The optically transparent adhesive according to claim 6, characterized in that: The outer peripheral edge of the first release film has a notch to form the marking portion.
9. The optically transparent adhesive according to claim 8, characterized in that: There are at least two notches, and the two notches are asymmetrically arranged on the first release film.
10. The optically transparent adhesive according to any one of claims 1 to 9, characterized in that: The distance that the second release film protrudes from the outer peripheral edge of the colloid layer is greater than the distance that the first release film protrudes from the outer peripheral edge of the colloid layer.