An environmentally friendly light guide plate protective film

Abstract

The present invention relates to the technical field of protective films, specifically an environmentally friendly light guide plate protective film, comprising two supporting film assemblies, the two supporting film assemblies being respectively sleeved on the bottom and top surfaces of the light guide plate, the supporting film assembly comprising a strip film 1, one end of the strip film 1 being interspersed with a strip film 2, one end of the strip film 2 being bonded and fixed to the middle position of the strip film 2 itself, both the strip film 1 and the strip film 2 being fixed with corner sleeves near the corners of the light guide plate, and an outer protective film being sleeved on the outer side of the supporting film assembly. In the present invention, by omitting the use of glue to bond the protective film composed of the outer protective film and the supporting film assembly to the light guide plate, bubbles, warping, and the like in the protective film due to uneven glue bonding are effectively prevented, the glue fixing the protective film does not contact the light guide plate, and also ensures that the light guide plate is in a clean and tidy state after the film is torn off, ensuring that the light guide plate can stably convert a linear light source into a surface light source during subsequent use.

Description

Technical Field

[0001] The invention relates to the technical field of protective films, in particular to an environmentally friendly light guide plate protective film. Background Art

[0002] An environmentally friendly light guide plate is a light guide plate with environmentally friendly characteristics. While meeting the light guiding function, it focuses on reducing the impact on the environment. Specifically, it uses optical-grade acrylic or polycarbonate sheets, and prints light guide points on the bottom of the sheet through laser engraving, V-shaped cross grid engraving, UV screen printing technology and other technical means, thereby converting a line light source into a surface light source. In order to protect the light guide plate during transportation and idleness, a protective film is currently applied to the outside of the light guide plate.

[0003] If the light guide plate is not temporarily installed and used or needs to be stored in a harsh environment, retaining the protective film can provide additional protection. Therefore, for this type of light guide plate, an adhesive is generally used to bond the protective film to the outside of the light guide plate to improve the firmness of the bonding between the protective film and the light guide plate. However, adhesives and glue bonding may affect the appearance and optical properties of the light guide plate, especially when the glue is not completely cured or the bonding is uneven, problems such as bubbles and warping may occur. Although the adhesive makes the protective film firmly bonded to the light guide plate, it is not easy to tear off the protective film when the light guide plate is used subsequently. Summary of the Invention

[0004] The object of the present invention is to provide an environmentally friendly light guide plate protective film to solve the problems raised in the above background technology.

[0005] To achieve the above object, the present invention provides the following technical solutions:

[0006] An environmentally friendly light guide plate protective film, comprising:

[0007] Two support film assemblies are respectively sleeved on the bottom and top surfaces of the light guide plate. The support film assembly includes a strip film 1, one end of which is inserted with a strip film 2, and one end of the strip film 2 is bonded and fixed to the middle position of the strip film 2 itself. Corner sleeves are fixed to the corners of the light guide plate near the first and second strip films;

[0008] There are two outer protective films, which are respectively sleeved on the outside of the corresponding strip film one and the strip film two. Extension films are fixed on the outside of the outer protective films near the four corners, and the extension films are bonded and fixed to the corresponding corner sleeves.

[0009] Furthermore, the corner sleeve includes a triangular film and two rectangular films, the two rectangular films are fixed on the bottom of the triangular film, and the triangular film and the rectangular film are respectively abutted against different sides of the light guide plate.

[0010] Furthermore, a second film capsule is fixed on the inner side of the stretch membrane, glue is contained in the second film capsule, and a second mesh area is provided on the outer side of the corner sleeve close to the outer side of the second film capsule.

[0011] Furthermore, two triangular areas are provided on the inner side of the outer protective film, and a hexagonal area is provided between the two triangular areas.

[0012] Furthermore, the hexagonal area is arranged between the corresponding strip film 1 and the strip film 2, the triangular area is in contact with the light guide plate, and the thickness of the outer protective film of the triangular area is greater than the thickness of the outer protective film of the hexagonal area.

[0013] Furthermore, fibers are arranged inside the outer protective film, and adjacent fibers are arranged in a cross pattern.

[0014] The outer protective film includes an inner film and an outer film, the fibers are arranged between the inner film and the outer film, and the outer protective film is a PE film made of PE material.

[0015] Furthermore, one end of the first strip of film is provided with a rectangular through hole, one end of the second strip of film passes through the rectangular through hole, and the width of the first strip of film is greater than the width of the second strip of film.

[0016] Furthermore, a film capsule 1 is fixed to the bottom surface of one end of the second strip-shaped membrane, and glue is contained in the first film capsule.

[0017] Furthermore, a mesh area 1 is provided on the surface of the second strip-shaped membrane, and the area of ​​the mesh area 1 is larger than the area of ​​the first film capsule.

[0018] Compared with the prior art, the present invention has the following beneficial effects:

[0019] 1. A support film assembly is arranged between two corner positions of a group of relative positions of a square light guide plate, and two corner sleeves on the support film assembly are respectively sleeved and fixed at the corner positions of the light guide plate, and the strip film 2 is pulled through the strip film 1, so that the strip film (including the strip film 1 and the strip film 2) is tightened and bound to the outside of the light guide plate with the two corner sleeves, and a film capsule 1 with glue is fixed on the bottom surface of the two end portions of the strip film, and one end of the strip film 2 fixed with the film capsule 1 is pressed to a position in the mesh area 1 outside the strip film 2, so that the film capsule 1 is squeezed and broken, and the glue bonds and fixes the bent strip film 2, thereby realizing the bonding and fixing of the support film assembly on the outside of the light guide plate, and the glue fixing the support film assembly does not contact the light guide plate, so as to prevent the light guide plate from being contaminated by incompletely cured glue.

[0020] 2. By sleeved outer side of the strip film with an outer protective film, multiple fibers are cross-fixed inside the outer protective film, and fibers in different directions form multiple diamond-shaped areas, which is beneficial to improving the effect of the outer protective film in protecting the light guide plate. By fixing multiple extension films on the peripheral side of the outer protective film, a second film capsule filled with glue is fixed on the inner side of each extension film. When the extension film is squeezed to the outside of the corner sleeve, the second film capsule on the inner side of the extension film is squeezed and broken to flow out glue. The glue will bond the extension part to the corner sleeve on the supporting film assembly, so that the outer protective film protects the outside of the light guide plate over a large area, and the glue bonding the outer protective film also does not contact the light guide plate, further protecting the light guide plate.

[0021] 3. When it is necessary to tear off the protective film, the extension film on the outer protective film can be torn off to allow the outer protective film to be directly separated from the light guide plate, and the strip film 1 or the strip film 2 can be torn off to separate the supporting film assembly from the light guide plate. Since the protective film and the light guide plate do not need to be bonded with glue, the protective film can be easily torn off. At the same time, it also prevents the solidified glue from remaining on the outside of the light guide plate, ensuring that the light guide plate can stably convert the line light source into a surface light source during subsequent use. BRIEF DESCRIPTION OF THE DRAWINGS

[0022] Figure 1 This is a schematic diagram of the overall structure of the present invention and the square light guide plate;

[0023] Figure 2 This is a schematic diagram of the three-dimensional structure of the square light guide plate and the outer protective film in the present invention;

[0024] Figure 3 This is a schematic diagram of the structure of the light guide plate and support film assembly in the present invention. Figure 1 ;

[0025] Figure 4 This is a schematic diagram of the structure of the light guide plate and support film assembly in the present invention. Figure 2 ;

[0026] Figure 5 This is a schematic diagram of the structure of the light guide plate and two supporting film components in the present invention in a disassembled three-dimensional state;

[0027] Figure 6 This is a schematic diagram of the structure of the support membrane component in the present invention Figure 1 ;

[0028] Figure 7 This is a schematic diagram of the structure of the support membrane component in the present invention Figure 2 ;

[0029] Figure 8 It is a schematic diagram of the internal fiber structure of the outer protective film in the present invention.

[0030] In the figure: 100, support membrane assembly; 110, strip membrane 1; 120, strip membrane 2; 121, film capsule 1; 122, mesh area 1; 130, corner sleeve; 200, outer protective film; 210, extension membrane; 211, film capsule 2; 220, fiber; 230, triangular area; 240, hexagonal area; 300, square light guide plate body. DETAILED DESCRIPTION

[0031] The following will clearly and completely describe the technical solutions in the embodiments of the present invention in conjunction with the accompanying drawings. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without making creative efforts are within the scope of protection of the present invention.

[0032] For example 1, please refer to Figure 1 - Figure 8 In an embodiment of the present invention, an environmentally friendly light guide plate protective film includes two support film assemblies 100, which are respectively sleeved on the bottom and top surfaces of the light guide plate. The support film assembly 100 includes a strip film 110, one end of the strip film 1 110 is interspersed with a strip film 2 120, and one end of the strip film 2 120 is bonded and fixed to the middle position of the strip film 2 120 itself. Both the strip film 1 110 and the strip film 2 120 are fixed with corner sleeves 130 near the corners of the light guide plate. The outer side of the support film assembly 100 is sleeved with an outer protective film 200, and the outer side of the outer protective film 200 is fixed with extension films 210 near the four corners. The extension film 210 is bonded and fixed to the corner sleeves 130 at the corresponding positions.

[0033] Specifically, by first sleeve-installing the support film assembly 100 on the top and bottom surfaces of the light guide plate, the strip film 1 110 and the strip film 2 120 on the support film assembly 100 can be initially protected on the outside of the light guide plate, and then the outer protective film 200 is fixed on the basis of the already fixed strip film (including the strip film 1 110 and the strip film 2 120), so that the outer protective film 200 is protected on the outside of the light guide plate. The support film assembly 100 is supported and fixed in a position between the light guide plate and the outer protective film 200, which can improve the protective strength of the outer protective film 200, and the protective film composed of the outer protective film 200 and the support film assembly 100 eliminates the need to use glue to bond with the light guide plate, effectively preventing the protective film from bubbling, warping, etc. due to uneven glue bonding, and the glue for fixing the protective film does not contact the light guide plate, which also ensures that the light guide plate is in a clean and tidy state after the film is torn off, ensuring that the light guide plate can stably convert the line light source into a surface light source during subsequent use.

[0034] like Figure 5As shown, in this embodiment, the corner sleeve 130 includes a triangular film and two rectangular films, and the two rectangular films are fixed at the bottom of the triangular film. The triangular film and the rectangular film are respectively abutted against different sides of the light guide plate, so that the triangular film can be abutted against the surface side of the light guide plate, and the rectangular film can be abutted against the side of the light guide plate, so that the corner sleeve 130 is wrapped around the corner of the light guide plate, which is convenient for subsequent traction of the strip film 120 to constrain and fix the two corner sleeves 130 to the outside of the light guide plate.

[0035] like Figure 2 As shown, in this embodiment, a second film capsule 211 is fixed to the inner side of the extension membrane 210, and glue is contained inside the second film capsule 211. A second mesh area is provided on the outer side of the corner sleeve 130 near the outer side of the second film capsule 211. When it is necessary to bond and fix the extension membrane 210 to the outer side of the corner sleeve 130, the second film capsule 211 on the extension membrane 210 is squeezed toward the outer side of the corner sleeve 130 by hand, so that the second film capsule 211 is squeezed and broken, and the glue inside the second film capsule 211 flows out, and the flowed glue bonds and fixes the extension membrane 210 to the corner sleeve 130, thereby achieving bonding and fixing of the extension membrane 210 to the corner sleeve 130, and fixing the outer protective film 200 between the two corner sleeves 130.

[0036] In this embodiment, a mesh area 2 is opened at a position corresponding to the film capsule 2 211 on the outside of the corner sleeve 130. During the process of pressing the film capsule 211, the glue can seep into the mesh area of ​​the mesh area 2, thereby preventing the glue from seeping and falling along the corner sleeve 130 to a certain extent.

[0037] like Figure 1 and Figure 2 As shown, in this embodiment, two triangular areas 230 are provided on the inner side of the outer protective film 200, and a hexagonal area 240 is provided between the two triangular areas 230. The hexagonal area 240 is arranged in affixed relation to the corresponding position between the strip film 1 110 and the strip film 2 120. The triangular area 230 is in affixed relation to the light guide plate, and the thickness of the outer protective film 200 in the triangular area 230 is greater than the thickness of the outer protective film 200 in the hexagonal area 240.

[0038] In this embodiment, the film thickness of the triangular areas 230 on both sides of the outer protective film 200 is designed to be greater than the film thickness of the hexagonal area 240 in the middle of the outer protective film 200, and the sum of the film thickness of the hexagonal area 240 and the film thickness of the strip film is the same as the film thickness of the triangular area 230. As a result, after the outer protective film 200 is sleeved onto the outer side of the light guide plate, the outer protective film 200 and the light guide plate can be tightly fitted together, effectively preventing the accumulation of dust and impurities in the space reserved between the outer protective film 200 and the light guide plate.

[0039] like Figure 8As shown, in this embodiment, fibers 220 are arranged inside the outer protective film 200, and adjacent fibers 220 are arranged in a cross-shaped manner. The fibers 220 are beneficial to improving the structural strength of the outer protective film 200, preventing damage to the protective surface side of the outer protective film 200, and improving the effect of the outer protective film 200 in protecting the light guide plate.

[0040] In this embodiment, the outer protective film 200 includes an inner film and an outer film, the fibers 220 are arranged between the inner film and the outer film, and the outer protective film 200 is a PE film made of PE material.

[0041] like Figure 7 and Figure 8 As shown, in this embodiment, a rectangular through hole is opened at one end of the strip film 110, and one end of the strip film 2 120 passes through the rectangular through hole. The width of the strip film 110 is greater than the width of the strip film 2 120. Pulling one end of the strip film 2 120 that passes through the rectangular through hole can enable the strip film composed of the strip film 110 and the strip film 2 120 to tighten the two corner sleeves 130, so that the corner sleeves 130 are firmly bound to the relative corner positions of the light guide plate.

[0042] In this embodiment, because the strip film 2 120 can be stretched on the strip film 1 110 to adjust its length, the overall length of the strip film composed of the strip film 1 110 and the strip film 2 120 can be flexibly adjusted, which facilitates the installation and fixation of the support film assembly 100 on square light guide plates of different sizes, which is beneficial to improving the scope of use of the support film assembly 100 of this application.

[0043] like Figure 7 and Figure 8 As shown, in this embodiment, a film capsule 121 is fixed to the bottom surface of one end of the strip membrane 120, and glue is contained inside the film capsule 121. A mesh area 122 is provided on the surface of the strip membrane 120, and the area of ​​the mesh area 122 is larger than the area of ​​the film capsule 121.

[0044] In this embodiment, when one end of the strip membrane 2 120 needs to be bonded and fixed to its outer side, the film capsule 121 on the bottom surface of the strip membrane 2 120 is squeezed toward the mesh area 122 on the strip membrane 2 120, so that the film capsule 121 is squeezed and broken, and then the glue contained in the film capsule 121 flows to the overlapping and abutting part of the strip membrane 2 120, so as to facilitate the bonding and fixing of the bent strip membrane 2 120, so that the strip membrane 1 110 and the strip membrane 2 120 are in a tensioned state.

[0045] In this embodiment, by making the opening area of ​​the mesh area 122 larger than the area of ​​the film capsule 121, the glue inside the film capsule 121 can be blocked inside the mesh area 122, effectively preventing the glue from flowing to the outside of the strip film 120 and contaminating the light guide plate.

[0046] It will be apparent 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 invention can be embodied in other specific forms without departing from the spirit or essential characteristics of the invention. Therefore, the embodiments should be considered in all respects as illustrative and non-restrictive, and the scope of the invention is defined by the appended claims, not the foregoing description, and all variations within the meaning and range of equivalents of the claims are intended to be included therein. Any reference sign in a claim should not be construed as limiting the claim to which it relates.

[0047] In addition, it should be understood that although this specification is described in terms of implementation methods, not every implementation method contains only one independent technical solution. This narrative method of the specification is only for the sake of clarity. Those skilled in the art should regard the specification as a whole. The technical solutions in each embodiment can also be appropriately combined to form other implementation methods that can be understood by those skilled in the art.

Claims

1. An environmentally friendly light guide plate protective film, characterized in that: include: Two supporting film assemblies (100) are respectively sleeved on the bottom surface and the top surface of the light guide plate. The supporting film assembly (100) includes a strip film (110). One end of the strip film (110) is inserted with a strip film (120). One end of the strip film (120) is bonded and fixed to the middle position of the strip film (120). Corner sleeves (130) are fixed to the corners of the strip film (110) and the strip film (120) near the light guide plate. There are two outer protective films (200), which are respectively sleeved on the outer sides of the strip film 1 (110) and the strip film 2 (120) at corresponding positions. Extension films (210) are fixed on the outer sides of the outer protective films (200) near the four corners, and the extension films (210) are bonded and fixed to the corresponding corner sleeves (130).

2. The environmentally friendly light guide plate protective film according to claim 1, characterized in that: The corner sleeve (130) comprises a triangular film and two rectangular films, the two rectangular films are fixed on the bottom of the triangular film, and the triangular film and the rectangular film are respectively abutted against different sides of the light guide plate.

3. The environmentally friendly light guide plate protective film according to claim 1, characterized in that: A second film capsule (211) is fixed on the inner side of the extension membrane (210), and glue is contained inside the second film capsule (211). A second mesh area is provided on the outer side of the corner sleeve (130) near the outer side of the second film capsule (211).

4. The environmentally friendly light guide plate protective film according to claim 1, characterized in that: Two triangular areas (230) are arranged on the inner side of the outer protective film (200), and a hexagonal area (240) is arranged between the two triangular areas (230).

5. The environmentally friendly light guide plate protective film according to claim 4, characterized in that: The hexagonal area is arranged between the corresponding strip film 1 (110) and the strip film 2 (120), the triangular area (230) is in contact with the light guide plate, and the thickness of the outer protective film of the triangular area (230) is greater than the thickness of the outer protective film of the hexagonal area (240).

6. The environmentally friendly light guide plate protective film according to claim 1, characterized in that: Fibers (220) are arranged inside the outer protective film (200), and adjacent fibers (220) are arranged in a cross-like manner.

7. The environmentally friendly light guide plate protective film according to claim 6, characterized in that: The outer protective film (200) comprises an inner film and an outer film, the fibers (220) are arranged between the inner film and the outer film, and the outer protective film (200) is a PE film made of PE material.

8. The environmentally friendly light guide plate protective film according to claim 1, characterized in that: One end of the strip membrane 1 (110) is provided with a rectangular through hole, and one end of the strip membrane 2 (120) passes through the rectangular through hole. The width of the strip membrane 1 (110) is greater than the width of the strip membrane 2 (120).

9. The environmentally friendly light guide plate protective film according to claim 8, characterized in that: A film capsule (121) is fixed to the bottom surface of one end of the second strip membrane (120), and glue is contained inside the film capsule (121).

10. The environmentally friendly light guide plate protective film according to claim 9, characterized in that: The surface of the second strip membrane (120) is provided with a mesh area (122), and the opening area of ​​the mesh area (122) is larger than the area of ​​the film capsule (121).

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