OCA (Optical Clear Adhesive) gluing structure of full-gluing display module

Abstract

The utility model discloses an OCA (Optical Clear Adhesive) gluing structure of a full-gluing display module. The OCA gluing structure comprises a host structural member, an OCA body and a cover plate body, the cover plate body is adhered to the top of a host structural member through the OCA body, and the left side and the right side of the OCA body are respectively and fixedly provided with a single-sided adhesive sheet; a first release film is attached to the adhesive face of one side of the OCA adhesive body, and a second release film and two third release films are attached to the adhesive face of the other side of the OCA adhesive body. By arranging the whole OCA adhesive body, complete attachment of the cover plate body and the host structural part and complete attachment of the backlight adhesive frame and the display screen can be achieved, only one-time attachment of the OCA adhesive body needs to be carried out, and therefore the OCA adhesive body can be completely attached to the host structural part, the backlight adhesive frame and the display screen. And the use of VHB glue is omitted, on one hand, the glue use cost is reduced, on the other hand, the assembly efficiency of gluing can be improved, and compared with a gluing structure in the prior art, the gluing structure has better convenience and practicability.

Description

Technical Field

[0001] The utility model relates to the technical field of display module gluing and assembly, in particular to an OCA glue laminating structure of a fully laminating display module. Background Art

[0002] As a key technology in the display industry, full bonding technology not only provides users with the ultimate optical experience, but also optimizes the structure of the entire machine to achieve lightness and thinness and minimalist manufacturing process in the back end. It is a main technology track for the display industry in the future.

[0003] Fully laminated display module, see Figure 3 In the existing technology, most display screens are bonded to the cover plate through OCA glue, the backlight glue frame is bonded to the cover plate through VHB, and the host structure is bonded to the cover plate through VHB. This method requires one application of OCA glue and two applications of VHB glue to complete the assembly of the display module, which will result in low efficiency, complicated production process and high cost during manual bonding.

[0004] In order to simplify the assembly process of the display module and improve the assembly efficiency, we have specifically designed an OCA adhesive bonding structure for a fully bonded display module. Utility Model Content

[0005] The utility model aims to overcome the above-mentioned shortcomings and provide a technical solution that can solve the above-mentioned problems.

[0006] To achieve the above-mentioned purpose, the utility model provides the following technical solutions: an OCA glue bonding structure of a fully-fitted display module, comprising a host structure, an OCA glue body and a cover plate body; the cover plate body is adhered to the top of the host structure through the OCA glue body, and single-sided films are fixed on both sides of the OCA glue body; a release film 1 is adhered to the sticky surface of one side of the OCA glue body, and a release film 2 and two release films 3 are adhered to the sticky surface of the other side of the OCA glue body.

[0007] As a further solution of the utility model: the length of the release film 1 is greater than the length of the OCA adhesive body, wherein the middle section of the release film 1 is attached to the adhesive surface of one side of the OCA adhesive body, and the left and right ends of the release film 1 are respectively attached to the adhesive surfaces of one side of the two single-sided films.

[0008] As a further solution of the utility model: a hand-tear handle is integrally formed in the middle of one side of the release film, and the surface of the hand-tear handle is designed with an anti-slip pattern structure.

[0009] As a further solution of the utility model: the second release film is attached to the middle of the sticky surface on the other side of the OCA adhesive body, and a second tear handle is integrally formed on one side of the second release film, and the surface of the second tear handle is designed with an anti-slip structure.

[0010] As a further solution of the utility model: the two release films three are respectively attached to the adhesive surface of the other side of the two single-sided adhesive films, and the two release films three are bent at 90 degrees and attached to the OCA adhesive body.

[0011] As a further solution of the utility model: the two sides of the release film three that are close to each other are respectively attached to the left and right sides of the release film two, and a tear handle three is integrally formed on one side of each release film three, and the surface of the tear handle three is designed with an anti-slip structure.

[0012] As a further solution of the utility model: it also includes a backlight glue frame, which is installed together with the mainframe structure, and the top of the backlight glue frame is on the same horizontal line as the top of the mainframe structure.

[0013] As a further solution of the utility model: it also includes a display screen, which is installed on the inner side of the backlight glue frame, and the top of the display screen and the top of the backlight glue frame are on the same horizontal line.

[0014] As a further solution of the utility model: the width of the display screen is the same as the width of the second release film.

[0015] As a further solution of the utility model: after the two release films are torn off, the sticky surfaces of the two single-sided films are respectively pasted on the sides of the cover body and the host structure, and the top of the single-sided film is on the same horizontal line as the top of the cover body.

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

[0017] 1. In the present application, by designing the structures of OCA glue body, release paper one, release paper two and release paper three, the area of ​​the OCA glue body is increased, so that the display screen can be fully bonded with the cover body first, and the release paper three is left on the OCA glue body at the bonding part of the backlight glue frame and the host structure. When bonding, it can be directly torn off and then bonding can be carried out, which saves labor and improves process production. By setting a whole piece of OCA glue body, the cover body and the host structure, the backlight glue frame and the display screen can be fully bonded. Only one OCA glue body bonding is required, eliminating the use of VHB glue. On the one hand, the glue cost is reduced, and on the other hand, the assembly efficiency of the glue can be improved. Compared with the bonding structure of the existing technology, it has better convenience and practicality.

[0018] Second, the designed single-sided film can be attached to the sides of the host structure and the cover body to reinforce the connection between the two, thereby reducing the probability of subsequent loosening of the OCA glue body and reducing the possibility of external dust or moisture penetrating into the interior from the adhesion between the two, thereby increasing the service life of the entire product and ensuring the normal operation of the product. BRIEF DESCRIPTION OF THE DRAWINGS

[0019] Figure 1 It is a schematic diagram of the cross-sectional structure of the cover body of the utility model after being bonded with the OCA adhesive body;

[0020] Figure 2 It is a three-dimensional structural schematic diagram of the OCA adhesive body of the utility model;

[0021] Figure 3 It is a schematic diagram of the cross-sectional structure of a cover plate body bonded with glue in the prior art.

[0022] The reference numerals and names in the figures are as follows:

[0023] 1. Mainframe structure; 2. OCA glue body; 201. Single-sided film; 3. Cover body; 4. Backlight glue frame; 5. Display screen; 6. Release film 1; 601. Tear handle 1; 7. Release film 2; 701. Tear handle 2; 8. Release film 3; 801. Tear handle 3. DETAILED DESCRIPTION

[0024] 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.

[0025] See also Figure 1-2 An OCA adhesive bonding structure of a fully laminated display module includes a host structure 1, an OCA adhesive body 2 and a cover body 3; the cover body 3 is adhered to the top of the host structure 1 through the OCA adhesive body 2, and single-sided adhesive films 201 are fixed on both sides of the OCA adhesive body 2; a release film 1 6 is adhered to the adhesive surface of one side of the OCA adhesive body 2, and a release film 2 7 and two release films 3 8 are adhered to the adhesive surface of the other side of the OCA adhesive body 2, and also includes a backlight adhesive frame 4, the backlight adhesive frame 4 is installed together with the host structure 1, and the top of the backlight adhesive frame 4 is on the same horizontal line as the top of the host structure 1.

[0026] See also Figure 2 In this embodiment, the length of the release film 6 is greater than the length of the OCA adhesive body 2, wherein the middle section of the release film 6 is attached to the adhesive surface of one side of the OCA adhesive body 2, and the left and right ends of the release film 6 are respectively attached to the adhesive surfaces of one side of the two single-sided films 201; a tear handle 601 is integrally formed in the middle of one side of the release film 6, and the surface of the tear handle 601 is designed with an anti-slip pattern structure.

[0027] Specifically, by providing a piece of release film 6, the sticky surface on one side of the OCA adhesive body 2 and the sticky surface on one side of the single-sided film 201 can be protected at the same time, avoiding damage when not in use, and ensuring subsequent normal use. The design of a tear handle 601 with anti-slip patterns makes it convenient to tear off the release film 6 by grasping the tear handle 601, so as to facilitate the bonding of one side of the torn release film 6 to the cover body 3.

[0028] See also Figure 2 In this embodiment, the release film 2 7 is attached to the middle of the adhesive surface of the other side of the OCA adhesive body 2, and a tear handle 2 701 is integrally formed on one side of the release film 2 7, and the surface of the tear handle 2 701 is designed with an anti-slip pattern structure.

[0029] Specifically, the designed release film 7 facilitates the subsequent tearing off of the release film 7 by grasping the tear handle 701 with anti-slip patterns, thereby exposing the OCA adhesive body 2 protected by the release film 7, which facilitates the subsequent bonding of the display screen 5.

[0030] See also Figure 1-2 In the present embodiment, the two release films 38 are respectively attached to the adhesive surfaces of the other sides of the two single-sided films 201, and the two release films 38 are attached to the OCA adhesive body 2 after being bent at 90 degrees; the sides of the two release films 38 close to each other are respectively attached to the left and right sides of the release film 27, and a tear handle 3801 is integrally formed on one side of each release film 38, and the surface of the tear handle 3801 is designed with an anti-slip pattern structure. When the two release films 38 are torn off, the adhesive surfaces of the two single-sided films 201 are respectively attached to the sides of the cover body 3 and the main structure 1, and the top of the single-sided film 201 is on the same horizontal line as the top of the cover body 3.

[0031] Specifically, the designed release film three 8 can protect the sticky surface of the OCA glue body 2 that is not protected by the release film two 7, and at the same time can protect the sticky surface of the single-sided film 201, so that it is convenient to tear off the release film three 8 by grasping the tear handle three 801 with anti-slip patterns, so that the sticky surface of the OCA glue body 2 is exposed, and it is convenient to use the sticky surface protected by the release film three 8 to stick to the main structure 1 and the backlight glue frame 4, while the sticky surface of the single-sided film 201 can be bonded to the main structure 1.

[0032] See also Figure 1 In this embodiment, a display screen 5 is also included. The display screen 5 is installed on the inner side of the backlight glue frame 4. The top of the display screen 5 is on the same horizontal line as the top of the backlight glue frame 4. The width of the display screen 5 is the same as the width of the release film 7.

[0033] Specifically, the width of the display screen 5 is the same as the width of the release film 2 7. When the display screen 5 needs to be pasted later, the release film 2 7 can be torn off first to reveal the pasting position of the display screen 5. The pasting position is adapted to the size of the display screen 5, so as to achieve the effect of positioning pasting and ensure that the pasting position of the display screen 5 is at the set position.

[0034] When in use: first tear off the release film 6 by the tear handle 601 to expose the sticky surface of the OCA adhesive body 2, and stick this sticky surface to the bottom of the cover body 3, and make the single-sided film 201 on this side stick to the left and right sides of the cover body 3, and press to achieve tight and firm adhesion;

[0035] Then tear off the release film 2 7 by the hand tear handle 2 701 to expose the adhesive surface in the middle of the other side of the OCA adhesive body 2, and stick the display screen 5 there;

[0036] When it is necessary to stick the cover body 3 to the mainframe structure 1 and the backlight glue frame 4, tear off the release film 3 8 through the tear handle 3 801 to expose the remaining adhesive surface of the OCA glue body 2 and the adhesive surface of the single-sided film 201. Then, the bottom of the cover body 3 faces downward, so that the display screen 5 can enter the backlight glue frame 4, and the cover body 3 is combined with the surface of the mainframe structure 1 and the backlight glue frame 4. Press the cover body 3, so that the adhesive surface of the OCA glue body 2 is tightly attached to the surface of the mainframe structure 1 and the backlight glue frame 4, and press the side of the single-sided film 201, so that the single-sided film 201 and the side of the mainframe structure 1 are tightly and firmly attached.

[0037] It is obvious to those skilled in the art that the present invention is not limited to the details of the exemplary embodiments described above, and that the present invention can be implemented in other specific forms without departing from the spirit or essential features of the present invention. Therefore, the embodiments should be regarded as exemplary and non-restrictive from any point of view, and the scope of the present invention is defined by the appended claims rather than the above description, and it is intended that all changes falling within the meaning and scope of the equivalent elements of the claims be included in the present invention. Any reference numeral in a claim should not be regarded as limiting the claim to which it relates.

Claims

1. An OCA adhesive bonding structure of a fully bonded display module, characterized in that: It comprises a main body structure (1), an OCA glue body (2) and a cover plate body (3); The cover plate body (3) is adhered to the top of the main structure (1) through the OCA adhesive body (2), and single-sided adhesive sheets (201) are fixed on both the left and right sides of the OCA adhesive body (2); The adhesive surface on one side of the OCA adhesive body (2) is adhered with a release film 1 (6), and the adhesive surface on the other side of the OCA adhesive body (2) is adhered with a release film 2 (7) and two release films 3 (8).

2. The OCA adhesive bonding structure of a fully bonded display module according to claim 1, characterized in that: The length of the release film (6) is greater than the length of the OCA adhesive body (2), wherein the middle section of the release film (6) is attached to the adhesive surface of one side of the OCA adhesive body (2), and the left and right ends of the release film (6) are respectively attached to the adhesive surfaces of one side of the two single-sided films (201).

3. The OCA adhesive bonding structure of a fully bonded display module according to claim 2, characterized in that: A tear handle (601) is integrally formed in the middle of one side of the release film (6), and the surface of the tear handle (601) is designed with an anti-slip pattern structure.

4. The OCA adhesive bonding structure of a fully bonded display module according to claim 1, characterized in that: The second release film (7) is attached to the middle of the adhesive surface on the other side of the OCA adhesive body (2), and a second tear handle (701) is integrally formed on one side of the second release film (7), and the surface of the second tear handle (701) is designed with an anti-slip pattern structure.

5. The OCA adhesive bonding structure of a fully bonded display module according to claim 1, characterized in that: The two release films (3) (8) are respectively attached to the adhesive surface of the other side of the two single-sided adhesive films (201), and the two release films (3) (8) are bent at 90 degrees and attached to the OCA adhesive body (2).

6. The OCA adhesive bonding structure of a fully bonded display module according to claim 1, characterized in that: The sides of the two release films (3) (8) that are close to each other are respectively attached to the left and right sides of the release film (2) (7), and one side of each release film (3) is integrally formed with a tear handle (3) (801), and the surface of the tear handle (3) (801) is designed with an anti-slip pattern structure.

7. The OCA adhesive bonding structure of a fully bonded display module according to claim 1, characterized in that: It also includes a backlight glue frame (4), which is installed together with the mainframe structure (1), and the top of the backlight glue frame (4) and the top of the mainframe structure (1) are on the same horizontal line.

8. The OCA adhesive bonding structure of a fully bonded display module according to claim 1, characterized in that: It also includes a display screen (5), which is installed on the inner side of the backlight glue frame (4), and the top of the display screen (5) is on the same horizontal line as the top of the backlight glue frame (4).

9. The OCA adhesive bonding structure of a fully bonded display module according to claim 8, characterized in that: The width of the display screen (5) is the same as the width of the second release film (7).

10. The OCA adhesive bonding structure of a fully bonded display module according to claim 1, characterized in that: When the two pieces of release film (8) are torn off, the sticky surfaces of the two pieces of single-sided films (201) are respectively adhered to the sides of the cover body (3) and the main structure (1), and the top of the single-sided films (201) is on the same horizontal line as the top of the cover body (3).

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