Liquid crystal display module membrane material

Abstract

The utility model discloses a liquid crystal display module membrane material which comprises a bottom large piece of release paper, a front PET release film, a frame type foam double-sided adhesive tape, an optical film, a membrane material release film and a back light release film, and the front PET release film is arranged on the upper surface of the bottom large piece of release paper; the frame-shaped foam double-sided adhesive tape is arranged on the edge of the upper surface of the front PET release film; the optical film is arranged in the middle of the upper surface of the front PET release film, and the optical film is arranged in the frame type foam double-sided adhesive; the film material release film is arranged above the optical film; and the back light release film is arranged on the upper surface of the frame type foam double-sided adhesive tape. The optical film is arranged in the frame type foam double-faced adhesive tape, so that the optical film and the frame type foam double-faced adhesive tape can be fed simultaneously, a piece of bottom large piece release paper and a front PET release film are omitted, material waste is avoided, product cost is reduced, and product competitiveness is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging materials, and more specifically, to a liquid crystal display module film material. Background Art

[0002] LCD products with cover plates or touch screens are framed and laminated with frame-type foam double-sided adhesive to fit the cover plate or touch screen with TFT. However, the material supply and layout of foam double-sided adhesive will affect the price and production efficiency. Traditional optical film and frame-type foam double-sided adhesive are usually supplied separately. Both optical film and frame-type foam double-sided adhesive need to be provided with large bottom release paper and release film, which leads to material waste, high product cost and reduced product competitiveness. Utility Model Content

[0003] The technical problem to be solved by the utility model is how to reduce product costs and improve product competitiveness.

[0004] The technical problem to be solved by the utility model is achieved through the following technical solutions:

[0005] In order to solve the above technical problems, the utility model provides a liquid crystal display module film material, which includes a large bottom piece of release paper, a front PET release film, a frame-type foam double-sided adhesive, an optical film, a film material release film and a back light release film, wherein the front PET release film is arranged on the upper surface of the large bottom piece of release paper; the frame-type foam double-sided adhesive is arranged on the edge of the upper surface of the front PET release film; the optical film is arranged in the middle of the upper surface of the front PET release film, and the optical film is arranged inside the frame-type foam double-sided adhesive; the film material release film is arranged above the optical film; and the back light release film is arranged on the upper surface of the frame-type foam double-sided adhesive.

[0006] As a preferred embodiment of the liquid crystal display module film material provided by the utility model, the height of the frame-shaped foam double-sided adhesive is greater than the height of the optical film, and the back light release film covers the upper surface of the frame-shaped foam double-sided adhesive and the top of the optical film.

[0007] As a preferred embodiment of the liquid crystal display module film material provided by the utility model, a film tearing handle is arranged above the release film of the film material.

[0008] As a preferred embodiment of the liquid crystal display module film material provided by the utility model, the frame-type foam double-sided adhesive includes a substrate layer, a first adhesive layer and a second adhesive layer, the first adhesive layer is arranged on the upper surface of the substrate layer, and the second adhesive layer is arranged on the lower surface of the substrate layer.

[0009] As a preferred embodiment of the liquid crystal display module film material provided by the utility model, the frame-shaped foam double-sided adhesive includes a first L-shaped double-sided adhesive and a second L-shaped double-sided adhesive, and the first L-shaped double-sided adhesive and the second L-shaped double-sided adhesive form a frame shape.

[0010] As a preferred implementation of the liquid crystal display module film material provided by the utility model, the frame-shaped foam double-sided adhesive includes 4 strips of double-sided adhesive, and the 4 strips of double-sided adhesive are sequentially connected end to end to form a frame shape.

[0011] As a preferred implementation of the liquid crystal display module film material provided by the utility model, one end of each strip-shaped double-sided adhesive is provided with a groove, and the other end thereof is provided with a protrusion corresponding to the groove.

[0012] As a preferred embodiment of the liquid crystal display module film material provided by the utility model, the side of the back light release film close to the adhesive layer is a smooth surface and is provided with grid convex patterns.

[0013] As a preferred implementation of the liquid crystal display module film material provided by the utility model, the back light release film is a PET film.

[0014] As a preferred implementation of the liquid crystal display module film material provided by the utility model, the spacing between the grid convex patterns is 0.5 mm*0.5 mm, and the height of the grid convex patterns is 0.05 mm.

[0015] The utility model has the following beneficial effects:

[0016] In the same LCD module, the frame-type foam double-sided adhesive is attached to the outer edge of the visible area, that is, attached to the non-visible area, while the optical film is attached to the visible area, so the size of the frame-type foam double-sided adhesive is usually larger than that of the optical film. Therefore, the optical film can be set inside the frame-type foam double-sided adhesive, so that the optical film and the frame-type foam double-sided adhesive can be fed at the same time, eliminating a large bottom release paper and a front PET release film, avoiding material waste, reducing product costs, and improving product competitiveness. BRIEF DESCRIPTION OF THE DRAWINGS

[0017] In order to more clearly illustrate the scheme in the present application, a brief introduction is given below to the drawings required for use in the description of the embodiments. Obviously, the drawings described below are some embodiments of the present application. For ordinary technicians in this field, other drawings can be obtained based on these drawings without paying any creative work.

[0018] Figure 1 The utility model provides a schematic structural diagram of a liquid crystal display module film material.

[0019] Figure 2 for Figure 1 sectional view of .

[0020] Figure 3 for Figure 2 Schematic diagram of the structure of the double-sided adhesive of the middle frame foam.

[0021] Figure 4 Schematic diagram of the improved structure of double-sided adhesive for frame-type foam.

[0022] Description of Figure Numbers:

[0023] Bottom large piece of release paper 1; front PET release film 2; frame-shaped foam double-sided adhesive 3; optical film 4; film material release film 5; back light release film 6; film tearing handle 7;

[0024] Base material layer 31 ; first adhesive layer 32 ; second adhesive layer 33 ; grid convex pattern 61 . DETAILED DESCRIPTION

[0025] In order to enable those skilled in the art to better understand the solution of the utility model, the technical solution in the embodiment of the utility model will be clearly and completely described below in conjunction with the drawings in the embodiment of the utility model. Obviously, the described embodiment is only a part of the embodiment of the utility model, not all of the embodiments. Based on the embodiment of the utility model, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the utility model.

[0026] In the description of the present invention, it should be understood that the terms "center", "longitudinal", "lateral", "length", "width", "thickness", "up", "down", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inside", "outside", "clockwise", "counterclockwise", "axial", "radial", "circumferential" and the like indicate orientations or positional relationships based on the orientations or positional relationships shown in the accompanying drawings, and are only for the convenience of describing the present invention and simplifying the description, and do not indicate or imply that the referred device or element must have a specific orientation, be constructed and operated in a specific orientation, and therefore should not be understood as a limitation on the present invention.

[0027] In addition, the terms "first", "second", and "third" are used for descriptive purposes only and should not be understood as indicating or implying relative importance or implicitly indicating the number of the indicated technical features. Therefore, the features defined as "first", "second", and "third" may explicitly or implicitly include at least one of the features. In the description of the present utility model, the meaning of "plurality" is at least two, such as two, three, etc., unless otherwise clearly and specifically defined.

[0028] The utility model provides a liquid crystal display module film material, which comprises a bottom large piece of release paper, a front PET release film, a frame-type foam double-sided adhesive, an optical film, a film material release film and a back light release film, wherein the front PET release film is arranged on the upper surface of the bottom large piece of release paper; the frame-type foam double-sided adhesive is arranged on the edge of the upper surface of the front PET release film; the optical film is arranged in the middle of the upper surface of the front PET release film, and the optical film is arranged inside the frame-type foam double-sided adhesive; the film material release film is arranged above the optical film; and the back light release film is arranged on the upper surface of the frame-type foam double-sided adhesive.

[0029] In the same LCD module, the frame-type foam double-sided adhesive is attached to the outer edge of the visible area, that is, attached to the non-visible area, while the optical film is attached to the visible area, so the size of the frame-type foam double-sided adhesive is usually larger than that of the optical film. Therefore, the optical film can be set inside the frame-type foam double-sided adhesive, so that the optical film and the frame-type foam double-sided adhesive can be fed at the same time, eliminating a large bottom release paper and a front PET release film, avoiding material waste, reducing product costs, and improving product competitiveness.

[0030] In order to enable those skilled in the art to better understand the present application, the technical solutions in the embodiments of the present application will be clearly and completely described below in conjunction with the accompanying drawings. The present invention is described in detail below in conjunction with the accompanying drawings and embodiments, and examples of the embodiments are shown in the accompanying drawings, wherein the same or similar reference numerals throughout represent the same or similar elements or elements with the same or similar functions. The embodiments described below with reference to the accompanying drawings are exemplary and are intended to be used to explain the present invention, and should not be construed as limitations on the present invention.

[0031] See also Figure 1 and Figure 2, which is a liquid crystal display module film material provided by the utility model, comprising a bottom large piece of release paper 1, a front PET release film 2, a frame-shaped foam double-sided adhesive 3, an optical film 4, a film material release film 5 and a back light release film 6, the front PET release film 2 is arranged on the upper surface of the bottom large piece of release paper 1; the frame-shaped foam double-sided adhesive 3 is arranged on the edge of the upper surface of the front PET release film 2; the optical film 4 is arranged in the middle of the upper surface of the front PET release film 2, and the optical film 4 is arranged in the frame-shaped foam double-sided adhesive 3; the film material release film 5 is arranged above the optical film 4; the back light release film 6 is arranged on the upper surface of the frame-shaped foam double-sided adhesive 3. In the same liquid crystal display module, the frame-shaped foam double-sided adhesive 3 is attached to the outer edge of the visible area, that is, attached to the non-visible area, and the optical film 4 is attached to the visible area, so the size of the frame-shaped foam double-sided adhesive 3 is usually larger than the size of the optical film 4, so the optical film 4 can be set in the frame-shaped foam double-sided adhesive 3, so that the optical film 4 and the frame-shaped foam double-sided adhesive 3 can be supplied at the same time, eliminating a large bottom release paper 1 and a front PET release film 2, avoiding material waste, reducing product costs, and improving product competitiveness.

[0032] Furthermore, the height of the frame-shaped foam double-sided adhesive 3 is greater than the height of the optical film 4, and the back-side light release film 6 covers the upper surface of the frame-shaped foam double-sided adhesive 3 and the top of the optical film 4, so that the back-side light release film 6 can block the top of the optical film 4 to prevent dust from entering the optical film 4.

[0033] Furthermore, a film tearing handle 7 is provided above the film release film 5 to facilitate the film release film 5 to be peeled off.

[0034] See also Figure 3 Furthermore, the frame-type foam double-sided adhesive 3 includes a substrate layer 31, a first adhesive layer 32 and a second adhesive layer 33, the first adhesive layer 32 is arranged on the upper surface of the substrate layer 31, and the second adhesive layer 33 is arranged on the lower surface of the substrate layer 31.

[0035] Furthermore, the frame-shaped foam double-sided adhesive 3 includes a first L-shaped double-sided adhesive and a second L-shaped double-sided adhesive, and the first L-shaped double-sided adhesive and the second L-shaped double-sided adhesive form a frame shape, which can reduce material waste.

[0036] Furthermore, the frame-shaped foam double-sided adhesive 3 includes four strips of double-sided adhesive, and the four strips of double-sided adhesive are sequentially connected end to end to form a frame shape, which can further reduce material waste.

[0037] Furthermore, a groove is provided at one end of each strip-shaped double-sided adhesive tape, and a protrusion corresponding to the groove is provided at the other end thereof, so as to increase the difficulty of dust entry, thereby greatly improving the dustproof ability of the frame-shaped foam double-sided adhesive tape 3, making it more suitable for touch modules and avoiding the generation of MURA.

[0038] See also Figure 4 As a further optimization scheme of Example 1, in this embodiment, the side of the back-light release film 6 close to the adhesive layer is a smooth surface and is provided with a grid convex pattern 61. In normal production packaging, since the grid convex pattern 61 on the back-light release film 6 is packaged together with the adhesive layer by rolling or stacking, under the extrusion of each layer of the frame-type foam double-sided adhesive 3, the adhesive layer will produce a pattern corresponding to the grid convex pattern 61. When the frame-type foam double-sided adhesive 3 is bonded, the bubbles will be discharged through the pattern, thereby greatly reducing the bubbles generated after bonding. The fewer the bubbles, the larger the bonding area, thereby increasing the viscosity of the frame-type foam double-sided adhesive 3, and further improving the bonding yield, avoiding material waste.

[0039] In some smaller-sized frame-type foam double-sided adhesives 3, the grid convex patterns 61 on the back light release film 6 can also be strip convex patterns. However, since the adhesive layer has a certain fluidity, when the frame-type foam double-sided adhesive 3 is attached, if it is squeezed by external force, since each strip convex pattern is independent of each other, the passage formed by the strip convex patterns in the adhesive layer is easily blocked, which will cause the bubbles to be unable to be discharged. When the grid convex patterns 61 are selected, since the grid convex patterns 61 are interconnected, if one passage is blocked, the bubbles can also be discharged through the adjacent passage, thereby avoiding the accumulation of bubbles and being unable to be discharged, thereby improving the product yield.

[0040] Generally speaking, the frame-type foam double-sided adhesive 3 is rolled material. Here, taking the roll material as an example, the grid convex pattern 61 forms a certain angle with the rolling direction to prevent the convex pattern from being parallel to the display module when the grid convex pattern 61 is attached to the display module, thereby causing the edge of the display module to be unable to fit and warp.

[0041] Furthermore, the back release film 6 is a PET film.

[0042] Furthermore, the spacing between the grid ridges 61 is 0.5 mm*0.5 mm, and the height of the grid ridges 61 is 0.05 mm.

[0043] In the present invention, unless otherwise clearly specified and limited, the terms "installed", "connected", "connected", "fixed" and the like should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral one; it can be a mechanical connection, an electrical connection, or communication with each other; it can be a direct connection, or an indirect connection through an intermediate medium, it can be the internal connection of two elements or the interaction relationship between two elements, unless otherwise clearly defined. For ordinary technicians in this field, the specific meanings of the above terms in the present invention can be understood according to specific circumstances.

[0044] Obviously, the embodiments described above are only some embodiments of the present application, rather than all embodiments. The preferred embodiments of the present application are given in the accompanying drawings, but they do not limit the patent scope of the present application. The present application can be implemented in many different forms. On the contrary, the purpose of providing these embodiments is to make the understanding of the disclosure of the present application more thorough and comprehensive. Although the present application is described in detail with reference to the aforementioned embodiments, for those skilled in the art, it is still possible to modify the technical solutions recorded in the aforementioned specific implementation methods, or to perform equivalent replacement of some of the technical features therein. Any equivalent structure made using the contents of the specification and drawings of this application, directly or indirectly used in other related technical fields, is similarly within the scope of patent protection of this application.

Claims

1. A liquid crystal display module film material, characterized in that: It includes: A large piece of release paper at the bottom; A front PET release film, which is arranged on the upper surface of the bottom large piece of release paper; A double-sided adhesive frame-shaped foam is arranged on the edge of the upper surface of the front PET release film; An optical film is arranged in the middle of the upper surface of the front PET release film, and the optical film is arranged inside the double-sided adhesive of the frame-shaped foam; A film release film, which is arranged above the optical film; The back side light release film is arranged on the upper surface of the double-sided adhesive of the frame-shaped foam.

2. The liquid crystal display module film material according to claim 1, characterized in that: The height of the frame-shaped foam double-sided adhesive is greater than the height of the optical film, and the back light release film covers the upper surface of the frame-shaped foam double-sided adhesive and the upper part of the optical film.

3. The liquid crystal display module film material according to claim 1, characterized in that: A film tearing handle is arranged above the film release film.

4. The liquid crystal display module film material according to claim 1, characterized in that: The frame-shaped foam double-sided adhesive comprises a substrate layer, a first adhesive layer and a second adhesive layer, wherein the first adhesive layer is arranged on the upper surface of the substrate layer, and the second adhesive layer is arranged on the lower surface of the substrate layer.

5. The liquid crystal display module film material according to claim 1, characterized in that: The frame-shaped foam double-sided adhesive tape comprises a first L-shaped double-sided adhesive tape and a second L-shaped double-sided adhesive tape, and the first L-shaped double-sided adhesive tape and the second L-shaped double-sided adhesive tape form a frame shape.

6. The liquid crystal display module film material according to claim 1, characterized in that: The frame-shaped foam double-sided adhesive comprises 4 strips of double-sided adhesive, and the 4 strips of double-sided adhesive are sequentially connected end to end to enclose a frame shape.

7. The liquid crystal display module film material according to claim 6, characterized in that: One end of each strip-shaped double-sided adhesive tape is provided with a groove, and the other end thereof is provided with a protrusion corresponding to the groove.

8. The liquid crystal display module film material according to claim 1, characterized in that: The side of the back-side light release film close to the adhesive layer is a smooth surface and is provided with grid convex patterns.

9. The liquid crystal display module film material according to claim 1, characterized in that: The back release film is a PET film.

10. The liquid crystal display module film material according to claim 8, characterized in that: The spacing between the grid convex patterns is 0.5 mm*0.5 mm, and the height of the grid convex patterns is 0.05 mm.

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