Double-sided adhesive structure for screen
By using a transparent PET substrate and a double-sided adhesive structure with multiple release papers and pull strips in the screen protector, the problem of air bubbles during the screen protector application process is solved, achieving high-quality adhesion and simplifying the process.
Patent Information
- Authority / Receiving Office
- CN · China
- Patent Type
- Utility models(China)
- Current Assignee / Owner
- SHENZHEN MGM ELECTRONICS IND CO LTD
- Filing Date
- 2025-05-30
- Publication Date
- 2026-06-05
AI Technical Summary
Existing screen protectors are prone to air bubbles during the application process, resulting in poor adhesion and affecting the user experience.
A double-sided adhesive structure for screens is adopted, including a transparent PET substrate, multiple release papers and a pull strip design. The substrate position is fixed by positioning stickers. First, the center release paper is peeled off, and then the substrate is attached from the center to both ends. The symmetrical arrangement of release papers and pull strip structure avoids air bubbles.
It effectively reduces air bubbles between the screen and the substrate, improves the bonding quality, and the release paper's area setting and pull strip design make removal easier and reduce the difficulty of operation.
Smart Images
Figure CN224323709U_ABST
Abstract
Description
Technical Field
[0001] This utility model relates to the field of screen protection technology, and in particular to a double-sided adhesive structure for screens. Background Technology
[0002] A screen is a component in a display device used to present visual information such as images, videos, and text. It is widely used in devices such as smartphones, televisions, computers, tablets, and smartwatches. Based on their technical principles and application scenarios, screens can be categorized into LCD screens, OLED screens, and Mini-LED / Micro-LED screens, among others.
[0003] In existing technologies, protective films are often applied to the screen for protection. These films typically consist of a substrate and a release liner, with the release liner attached to the side of the film with double-sided adhesive. During application, the release liner is peeled off, and the film is then adhered to the screen using the double-sided adhesive. However, in this process, applying the entire protective film from one end to the other often results in air bubbles remaining between the screen and the substrate, leading to incomplete adhesion and affecting the screen's performance. Therefore, this paper proposes an improved double-sided adhesive screen bonding structure. Utility Model Content
[0004] The purpose of this invention is to at least solve one of the aforementioned technical defects.
[0005] Therefore, one objective of this utility model is to propose a double-sided adhesive structure for screens to solve the problems mentioned in the background art and overcome the shortcomings of the prior art.
[0006] To achieve the above objectives, one embodiment of the present invention provides a double-sided adhesive structure for screens, comprising a substrate with one side coated with double-sided adhesive, a first release paper disposed at the center of the substrate, a first pull strip attached to the first release paper, a second release paper and a third release paper disposed on both sides of the first release paper on the substrate, a second pull strip disposed on both the second release paper and the third release paper, and a positioning sticker attached to the top surface of the substrate.
[0007] Preferably, the substrate is made of transparent PET material, and the edges and corners of the substrate are rounded.
[0008] The above technical solution employs a substrate as a protective film, which is then attached to the screen to block external friction and impacts, thus protecting the screen. Using a PET substrate allows for easy observation of the double-sided adhesive's placement during application, ensuring proper adhesion. The substrate's edges and corners are rounded, making it more smooth and reducing wear and tear from external objects.
[0009] Preferably, in any of the above schemes, the second release paper and the third release paper are symmetrically arranged on both sides of the first release paper along the length of the substrate.
[0010] The above technical solution employs a combination of first, second, and third release papers with the substrate. During use, the side of the substrate coated with double-sided adhesive is sealed to prevent the adhesive from adhering to external dust and other debris. The release papers are arranged in multiple sections, making them easier to remove compared to a single sheet of release paper. The second and third release papers are symmetrically arranged, allowing for two identical steps when attaching the substrate, reducing operational difficulty and simplifying user experience.
[0011] Preferably, in any of the above solutions, the first release paper has a circular structure, and the second and third release papers both have a structure that is adapted to the shape of the first release paper and the shape of the substrate.
[0012] The above technical solution involves attaching the first release liner to the center of the substrate. During the attachment process, after positioning with a positioning sticker, the first release liner is removed, allowing the center of the substrate to adhere to the screen first. The second and third release liners work in conjunction with the first release liner to achieve complete encapsulation of the double-sided adhesive surface of the substrate. The circular structure of the first release liner ensures that the initial adhesion area between the substrate and the screen is a circle centered on the screen, preventing air bubbles from forming in the center of the screen.
[0013] Preferably, in any of the above solutions, the second pull strip adopts a Y-shaped structure, and the ends of the second release paper and the third release paper are provided with adhesive portions, and the end of the second pull strip is adhered to the adhesive portion.
[0014] The above technical solution employs a first pull strip for removing the first release paper, and a second pull strip for removing the second and third release papers. The second pull strip, with its Y-shaped structure, adapts to the shapes of the second and third release papers, enabling more even removal. By providing an adhesive part and attaching the second pull strip to it, the second pull strip is constrained, preventing damage during the storage and transportation of the substrate.
[0015] Preferably, in any of the above solutions, the first release paper has a rectangular structure and its corners are provided with arc-shaped convex corners, and the second and third release papers both have a structure that is adapted to the shape of the first release paper and the shape of the substrate.
[0016] Preferably, in any of the above solutions, the second pull strip adopts a rectangular structure, the positioning sticker is attached to the middle position of the substrate along the length direction, and positioning stickers are provided on both sides of the substrate.
[0017] The above technical solution employs a rectangular release liner, ensuring the central portion of the substrate adheres to the screen immediately, expanding the initial adhesion surface and simplifying subsequent bonding processes. A positioning sticker secures the substrate in its correct position relative to the screen. Specifically, before applying the film, the substrate is placed on the screen, ensuring complete alignment. The positioning sticker on one side of the substrate is used to adhere it to the screen, fixing its position. The substrate is then flipped over, the first release liner is removed, and the substrate is finally attached to the screen.
[0018] Compared with the prior art, the advantages and beneficial effects of this utility model are as follows:
[0019] 1. This screen uses a double-sided adhesive structure. By incorporating a first release liner, a second release liner, a third release liner, a first pull strip, a second pull strip, and positioning stickers, the substrate is placed on the screen during the application process, ensuring perfect alignment. The positioning sticker on one side of the substrate adheres it to the screen, fixing its position. The substrate is then flipped over, the first release liner is removed, and the substrate is adhered to the screen. At this point, only the center of the substrate is attached to the screen. Pulling the second pull strip causes the second and third release liner to detach from the substrate, allowing it to adhere to the screen from the center outwards. This significantly reduces air bubbles between the screen and the substrate, improving adhesion quality.
[0020] 2. This screen uses a double-sided adhesive structure, with the release paper divided into multiple areas, making it easier to remove compared to a single sheet of release paper. By setting up adhesive sections and attaching the second pull strip to these sections, the second pull strip can be restrained, preventing damage during the storage and transportation of the substrate.
[0021] Additional aspects and advantages of this invention will be set forth in part in the description which follows, and in part will be obvious from the description, or may be learned by practice of the invention. Attached Figure Description
[0022] The above and / or additional aspects and advantages of this utility model will become apparent and readily understood from the description of the embodiments taken in conjunction with the following drawings, in which:
[0023] Figure 1 This is a front structural diagram of the present invention;
[0024] Figure 2 This is a schematic diagram of the rear structure of one embodiment of the present invention;
[0025] Figure 3 This is a schematic diagram of the back structure of another embodiment of the present invention.
[0026] In the diagram: 1-substrate, 2-first release paper, 3-first pull strip, 4-second release paper, 5-third release paper, 6-second pull strip, 7-adhesive part, 8-positioning sticker. Detailed Implementation
[0027] The embodiments of this utility model are described in detail below. Examples of these embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals denote the same or similar elements or elements having the same or similar functions throughout. The embodiments described below with reference to the accompanying drawings are exemplary and intended to explain this utility model, and should not be construed as limiting this utility model.
[0028] In this utility model, unless otherwise explicitly specified and limited, the terms "installation," "connection," "linking," and "fixing," etc., should be interpreted broadly. For example, they can refer to a fixed connection, a detachable connection, or an integral connection; they can refer to a mechanical connection or an electrical connection; they can refer to a direct connection or an indirect connection through an intermediate medium; and they can refer to the internal connection of two components. Those skilled in the art can understand the specific meaning of the above terms in this utility model according to the specific circumstances.
[0029] like Figures 1-3 As shown, this utility model includes a substrate 1 with one side coated with double-sided adhesive, a first release paper 2 is provided at the center of the substrate 1, a first pull strip 3 is attached to the first release paper 2, a second release paper 4 and a third release paper 5 are respectively provided on both sides of the first release paper 2 on the substrate 1, a second pull strip 6 is provided on both the second release paper 4 and the third release paper 5, and a positioning sticker 8 is attached to the top surface of the substrate 1.
[0030] Example 1: Substrate 1 is made of transparent PET material, and all edges and corners of substrate 1 are rounded. Substrate 1 serves as a protective film, which, when attached to the screen, can block external friction and impact, thus protecting the screen. Because substrate 1 is made of PET material, the adhesion position of double-sided tape can be observed through the substrate to ensure proper adhesion. The rounded edges and corners of substrate 1 make it more rounded, which helps reduce wear and tear from external objects.
[0031] The second release paper 4 and the third release paper 5 are symmetrically arranged on both sides of the first release paper 2 along the length of the substrate 1. The first release paper 2, the second release paper 4, and the third release paper 5 work together with the substrate 1 to seal the side of the substrate 1 coated with double-sided adhesive during use, preventing the double-sided adhesive from adhering to external dust and other debris. The release paper is arranged in multiple sections, making it easier to remove compared to a single sheet of release paper. The symmetrical arrangement of the second release paper 4 and the third release paper 5 allows for two identical steps when attaching to the substrate 1, reducing operational difficulty and making it more convenient for users.
[0032] Example 2: The first release paper 2 has a circular structure. The second release paper 4 and the third release paper 5 both have a shape that matches the first release paper 2 and the shape of the substrate 1. The first release paper 2 is attached to the center of the substrate 1. During the attachment process, after positioning with the positioning sticker 8, the first release paper 2 is first removed, allowing the center of the substrate 1 to adhere to the screen first. The second release paper 4 and the third release paper 5 then work in conjunction with the first release paper 2 to achieve complete encapsulation of the double-sided adhesive surface of the substrate 1. The circular structure of the first release paper 2 ensures that the initial attachment area between the substrate 1 and the screen is a circle centered on the screen, preventing air bubbles from appearing in the center of the screen.
[0033] The second pull strip 6 adopts a Y-shaped structure, and the ends of the second release paper 4 and the third release paper 5 are provided with adhesive portions 7. The end of the second pull strip 6 is adhered to the adhesive portion 7. The first pull strip 3 is used to remove the first release paper 2, and the second pull strip 6 is used to remove the second release paper 4 and the third release paper 5. Its Y-shaped structure is adapted to the shape of the second release paper 4 and the third release paper 5, which can more evenly remove the second release paper 4 and the third release paper 5. By providing the adhesive portion 7 and adhering the second pull strip 6 to the adhesive portion 7, the second pull strip 6 can be constrained, preventing the second pull strip 6 from being damaged during the storage and transportation of the substrate 1.
[0034] Example 3: The first release paper 2 has a rectangular structure with rounded convex corners. The second release paper 4 and the third release paper 5 both have a structure that matches the shape of the first release paper 2 and the shape of the substrate 1. The second pull strip 6 has a rectangular structure. The positioning sticker 8 is attached to the middle position along the length of the substrate 1, and positioning stickers 8 are provided on both sides of the substrate 1. The rectangular structure of the first release paper 2 allows the middle part of the substrate 1 to adhere to the screen immediately, expanding the initial adhesion surface and making the subsequent pasting process simpler. The positioning sticker 8 is used to fix the substrate 1 in the position adapted to the screen. Specifically, before applying the film, the substrate 1 is placed on the screen and aligned perfectly with it. The positioning sticker 8 on one side of the substrate 1 is used to adhere the substrate 1 to the screen device, fixing the position of the substrate 1. Then, the substrate 1 is flipped over, the first release paper 2 is removed, and the substrate 1 is then attached to the screen.
[0035] The working principle of this utility model is as follows:
[0036] S1. Place the substrate 1 on the screen, ensuring it aligns perfectly with the screen. Use the positioning sticker 8 on one side of the substrate 1 to adhere the substrate 1 to the screen device, thus fixing the position of the substrate 1.
[0037] S2. Flip the substrate 1, remove the first release paper 2, and then attach the substrate 1 to the screen. At this time, only the center of the substrate 1 is attached to the screen.
[0038] S3, pull the second pull bar 6, the second pull bar 6 moves the second release paper 4, the third release paper 5 to detach from the substrate 1, the substrate 1 is attached to the screen from the center to both ends.
[0039] Compared with the prior art, the present invention has the following advantages:
[0040] 1. This screen uses a double-sided adhesive structure. By incorporating a first release paper 2, a second release paper 4, a third release paper 5, a first pull strip 3, a second pull strip 6, and a positioning sticker 8, the substrate 1 is placed on the screen during the film application process, ensuring perfect alignment. The positioning sticker 8 on one side of the substrate 1 adheres it to the screen device, fixing its position. Then, the substrate 1 is flipped over, the first release paper 2 is removed, and the substrate 1 is attached to the screen. At this point, only the center of the substrate 1 is adhered to the screen. Next, the second pull strip 6 is pulled, causing the second and third release papers 4 and 5 to detach from the substrate 1. The substrate 1 is then adhered to the screen from the center outwards, significantly reducing air bubbles between the screen and the substrate 1 and improving the adhesion quality.
[0041] 2. The screen uses a double-sided adhesive structure, and the release paper is set in multiple areas, making it easier to remove compared to a single sheet of release paper. By setting the adhesive part 7 and adhering the second pull strip 6 to the adhesive part 7, the second pull strip 6 can be constrained, preventing it from being damaged during the storage and transportation of the substrate 1.
Claims
1. A double-sided adhesive structure for a screen, comprising a substrate (1) with one side coated with double-sided adhesive; characterized in that, A first release paper (2) is provided at the center of the substrate (1), and a first pull strip (3) is pasted on the first release paper (2). A second release paper (4) and a third release paper (5) are respectively provided on both sides of the first release paper (2) on the substrate (1). A second pull strip (6) is provided on both the second release paper (4) and the third release paper (5). A positioning sticker (8) is attached to the top surface of the substrate (1).
2. The double-sided adhesive structure for a screen as described in claim 1, characterized in that: The substrate (1) is made of transparent PET material, and the corners of the substrate (1) are all rounded.
3. The double-sided adhesive structure for a screen as described in claim 2, characterized in that: The second release paper (4) and the third release paper (5) are symmetrically arranged on both sides of the first release paper (2) along the length direction of the substrate (1).
4. The double-sided adhesive structure for a screen as described in claim 3, characterized in that: The first release paper (2) adopts a circular structure, and the second release paper (4) and the third release paper (5) both adopt a structure that is compatible with the shape of the first release paper (2) and the shape of the substrate (1).
5. The double-sided adhesive structure for a screen as described in claim 4, characterized in that: The second pull strip (6) adopts a Y-shaped structure. The ends of the second release paper (4) and the third release paper (5) are provided with adhesive parts (7), and the end of the second pull strip (6) is adhered to the adhesive part (7).
6. The double-sided adhesive structure for a screen as described in claim 3, characterized in that: The first release paper (2) adopts a rectangular structure and has arc-shaped convex corners at its edges and corners. The second release paper (4) and the third release paper (5) both adopt a structure that is compatible with the shape of the first release paper (2) and the shape of the substrate (1).
7. The double-sided adhesive structure for a screen as described in claim 6, characterized in that: The second pull strip (6) adopts a rectangular structure, and the positioning sticker (8) is attached to the middle position of the substrate (1) along the length direction. Positioning stickers (8) are provided on both sides of the substrate (1).