CN216210326U - Prevent glued structure of returning type of module mura - Google Patents

Abstract

The utility model relates to the technical field of liquid crystal display modules, in particular to a double-sided adhesive structure for preventing module mura, which aims at solving the problem that the double-sided adhesive structure in the prior art is easy to cause the generation of the module mura and provides a scheme that a black double-sided adhesive tape is adopted, wherein the front surface of the black double-sided adhesive tape is a low-viscosity surface, and the back surface of the black double-sided adhesive tape is a high-viscosity surface; the PET1 is adhered to the non-adhesive surface of the black single-sided adhesive, and the transparent double-sided adhesive is adhered to the other surface of the PET 1. The utility model has reasonable structure, not only saves raw materials to a great extent, but also can effectively reduce mura generation by arranging the black single-sided adhesive head.

Description

Prevent glued structure of returning type of module mura

Technical Field

The utility model relates to the field of liquid crystal display modules, in particular to a structure of a paper clip for preventing module mura.

Background

The liquid crystal display module is formed by combining a backlight source and an LCD. The backlight provides light source, and the LCD displays information. The two are usually combined together through the clip glue or the edge wrapping glue, the clip glue can fix the diaphragm, meanwhile, bright edges can be prevented, and the display effect is improved. Without the return adhesive, the backlight cannot be shipped as a separate product. The glob-top structure is one of the primary ways to hold the LCD.

The common paper clip glue structure is a black double-sided adhesive tape which is integrally formed, namely four edges are connected together, a hole is integrally dug in the middle, and material waste is serious. In addition, with the clip-type adhesive LCD, the four sides of the LCD are pulled downwards, and if the backlight is not flat, the stress will be uneven, so that mura is generated, and particularly, a single layer area (LCD head) is more easily affected. Therefore, the scheme provides a return type glue structure for preventing the module mura.

SUMMERY OF THE UTILITY MODEL

The utility model provides a structure of a back-shaped glue for preventing module mura, which solves the problem that the back-shaped glue structure in the prior art is easy to cause the generation of the module mura.

In order to achieve the purpose, the utility model adopts the following technical scheme:

a mold mura preventing shape memory adhesive structure, comprising:

the front surface of the black double-sided adhesive tape is a low-viscosity surface, and the back surface of the black double-sided adhesive tape is a high-viscosity surface;

the PET1 is bonded on the non-adhesive surface of the black single-sided adhesive, and the transparent double-sided adhesive is bonded on the other surface of the PET 1;

wherein, three black double-sided glues and a black single-sided glue surround the structure of the circle of returning the shape of a mould, and black single-sided glue is in the structure head of the circle of returning the shape of a mould.

Preferably, protective films are bonded on the front face of the black double-sided adhesive tape and one side, far away from the PET, of the transparent double-sided adhesive tape to protect the black double-sided adhesive tape and the transparent double-sided adhesive tape.

Preferably, release paper is bonded on the reverse side of the black double-sided adhesive and the adhesive side of the black single-sided adhesive to protect the black double-sided adhesive and the black single-sided adhesive.

Preferably, the high-viscosity side peel force of the black double-sided adhesive tape is 1800g/25mm, and the low-viscosity side peel force of the black double-sided adhesive tape is 1100g/25 mm.

Preferably, the stripping force of the adhesive side of the black single-sided adhesive is 320g/25 mm.

Preferably, the double-sided adhesive peeling force of the transparent double-sided adhesive tape is 2000g/25 mm.

Preferably, the protective film is made of low-viscosity PET, and the peeling force is 10g/25 mm.

The utility model has the beneficial effects that:

1. the integral clip glue is changed into four pieces, so that the material is saved.

2. The head of the double-sided adhesive mechanism adopts a black single face without viscosity, so that an LCD single-layer area is not pulled, the head of the module does not generate mura, and the other three sides of the head of the double-sided adhesive mechanism are adhered to the LCD surface to form a low-adhesion surface, so that the mura is greatly reduced.

The utility model has reasonable structure, not only saves raw materials to a great extent, but also can effectively reduce mura generation by arranging the black single-sided adhesive head.

Drawings

FIG. 1 is a schematic view of a clip-type cement structure of the present invention.

Fig. 2 is a schematic diagram of the double-sided adhesive tape compounded by the black single-sided adhesive tape, PET1 and the transparent double-sided adhesive tape.

Fig. 3 is a schematic layer structure diagram of the black single-sided adhesive of the present invention.

FIG. 4 is a schematic diagram showing the separation of the protective film after the black single-sided adhesive of the present invention is used.

Fig. 5 is a schematic layer structure diagram of the black double-sided tape of the utility model.

Fig. 6 is a schematic diagram showing the separation of the protective film after the black double-sided tape of the present invention is used.

Reference numbers in the figures: 1. black double-sided adhesive tape; 2. black single-sided adhesive; 3. transparent double-sided adhesive tape; 4. PET 1; 5. a protective film; 6. release paper; and 7, gluing the frame.

Detailed Description

The technical solutions in the embodiments of the present invention will be clearly and completely described below with reference to the drawings in the embodiments of the present invention, and it is obvious that the described embodiments are only a part of the embodiments of the present invention, and not all of the embodiments.

Referring to fig. 1, a mold back type glue structure for preventing a mold group mura, comprising: the black double-sided adhesive tape 1 and the black single-sided adhesive tape 2, and the three black double-sided adhesive tapes 1 and one black single-sided adhesive tape 2 enclose a clip structure, so that the integral clip structure is changed into four segmented clip structures, thereby saving materials;

referring to fig. 2-6, the front surface of the black double-sided adhesive tape 1 is a low-viscosity surface, and the back surface of the black double-sided adhesive tape 1 is a high-viscosity surface; the non-adhesive surface of the black single-sided adhesive 2 is bonded with PET14, the other surface of the PET14 is bonded with a transparent double-sided adhesive 3, wherein three pieces of black double-sided adhesive 1 and one piece of black single-sided adhesive 2 surround a double-sided adhesive structure, the black single-sided adhesive 2 is positioned at the head of the double-sided adhesive structure, the front surface of the black double-sided adhesive 1 and one side of the transparent double-sided adhesive 3, which is far away from the PET14, are bonded with a protective film 5 for protecting the black double-sided adhesive 1 and the transparent double-sided adhesive 3, and the back surface of the black double-sided adhesive 1 and the adhesive surface of the black single-sided adhesive 2 are bonded with release paper 6 for protecting the black double-sided adhesive 1 and the black single-sided adhesive 2, so that the single protective film 5 cannot meet the requirement due to inconsistent adhesion of four sides, and the non-adhesive surface of the head black single-sided adhesive 2 is bonded with the low-adhesion PET14 and the transparent double-sided adhesive 3, so that the head black single-sided adhesive 2 and the non-sided adhesive 2 are integrally compounded;

referring to fig. 5 and 6, the high adhesive surface peel force of the black double-sided tape 1 is 1800g/25mm, the low adhesive surface peel force of the black double-sided tape 1 is 1100g/25mm, the adhesive frame has high adhesive property, the LCD surface has low adhesive property, and when in use, the side with high adhesive property is adhered to the adhesive frame 7;

referring to fig. 2 to 4, the peel force of the adhesive surface of the black single-sided adhesive 2 is 320g/25mm, and the adhesive surface is adhered to the adhesive frame 7 when in use; the double-sided adhesive peeling force of the transparent double-sided adhesive tape 3 is 2000g/25mm, the protective film 5 is made of low-adhesive PET, and the peeling force is 10g/25mm, because a single protective film cannot be well adhered to the black single-sided adhesive non-adhesive surface, the low-adhesive PET14 and the transparent double-sided adhesive tape 3 are attached to the black single-sided adhesive head non-adhesive surface, so that the black single-sided adhesive head non-adhesive surface and the transparent double-sided adhesive tape 3 are integrated into a composite double-sided adhesive tape.

The working principle is as follows: when the LED lamp is used, the three black double-sided adhesive tapes 1 and the black single-sided adhesive tape 2 are encircled to form a clip structure, the black single-sided adhesive tape 2 is located at the top of the clip structure, then the release paper 6 on the black double-sided adhesive tapes 1 and the black single-sided adhesive tape 2 is torn off, the high-viscosity surface of the black double-sided adhesive tape 1 and the viscosity surface of the black single-sided adhesive tape 2 are adhered to the adhesive frame 7, then the protective film 5 on the viscosity surface at the bottom of the black double-sided adhesive tape 1 is torn off, the transparent double-sided adhesive tape 3 is torn off from the non-adhesive surface of the black single-sided adhesive tape, and finally the LED and the low-viscosity surfaces of the three black double-sided adhesive tapes 1 are adhered together.

In the description of the present invention, it is to be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", and the like, indicate orientations and positional relationships based on those shown in the drawings, and are used only for convenience of description and simplicity of description, and do not indicate or imply that the equipment or element being referred to must have a particular orientation, be constructed and operated in a particular orientation, and thus, should not be considered as limiting the present invention.

Furthermore, the terms "first", "second" and "first" are used for descriptive purposes only and are not to be construed as indicating or implying relative importance or implicitly indicating the number of technical features indicated. Thus, a feature defined as "first" or "second" may explicitly or implicitly include one or more of that feature. In the description of the present invention, "a plurality" means two or more unless specifically defined otherwise.

The above description is only for the preferred embodiment of the present invention, but the scope of the present invention is not limited thereto, and any person skilled in the art should be considered to be within the technical scope of the present invention, and equivalent alternatives or modifications according to the technical solution of the present invention and the inventive concept thereof should be covered by the scope of the present invention.

Claims (7)

1. The utility model provides a prevent gluey structure of back type of module mura which characterized in that includes:

the front surface of the black double-sided adhesive tape (1) is a low-viscosity surface, and the back surface of the black double-sided adhesive tape (1) is a high-viscosity surface;

the adhesive-free surface of the black single-sided adhesive (2) is bonded with PET1(4), and the other surface of the PET1(4) is bonded with a transparent double-sided adhesive (3);

the three black double-sided adhesive tapes (1) and one black single-sided adhesive tape (2) surround a paper clip structure, and the black single-sided adhesive tape (2) is positioned at the head of the paper clip structure.

2. The structure of claim 1, wherein a protective film (5) is adhered to the front surface of the black double-sided adhesive tape (1) and the side of the transparent double-sided adhesive tape (3) far from the PET1(4) for protecting the black double-sided adhesive tape (1) and the transparent double-sided adhesive tape (3).

3. The structure of claim 1, wherein a release paper (6) is adhered to the reverse side of the black double-sided adhesive tape (1) and the adhesive side of the black single-sided adhesive tape (2) for protecting the black double-sided adhesive tape (1) and the black single-sided adhesive tape (2).

4. The structure of claim 1, wherein the peel force of the high adhesive side of the black double-sided adhesive tape (1) is 1800g/25mm, and the peel force of the low adhesive side of the black double-sided adhesive tape (1) is 1100g/25 mm.

5. The structure of claim 1, wherein the black single-sided adhesive (2) has a peel force of 320g/25mm from the adhesive surface.

6. The structure of claim 1, wherein the double-sided adhesive peel force of the transparent double-sided adhesive tape (3) is 2000g/25 mm.

7. The structure of claim 2, wherein the protective film (5) is made of low-viscosity PET and has a peel force of 10g/25 mm.

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