Environment-friendly light guide plate protective film

Abstract

The invention relates to the technical field of protective films, in particular to an environment-friendly light guide plate protective film which comprises two supporting film assemblies, the two supporting film assemblies are connected to the bottom face and the top face of a light guide plate in a sleeving mode respectively, each supporting film assembly comprises a first strip-shaped film, and a second strip-shaped film is inserted into one end of each first strip-shaped film in a penetrating mode. One end of the second belt-shaped film is fixedly bonded with the middle position of the second belt-shaped film, corner sleeves are fixed to the corner positions, close to the light guide plate, of the first belt-shaped film and the second belt-shaped film, and an outer protection film is arranged on the outer side of the supporting film assembly in a sleeving mode. According to the invention, the protective film composed of the outer protective film and the supporting film assembly is not bonded with the light guide plate by using glue, so that the phenomena of bubbles, warping and the like of the protective film caused by non-uniform bonding of the glue are effectively prevented, and the glue for fixing the protective film is not in contact with the light guide plate, so that the light guide plate is ensured to be in a clean and tidy state after the film is torn off; and the light guide plate can stably convert a line light source into an area light source in 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] Environmentally friendly light guide plate is a light guide plate with environmentally friendly characteristics. While satisfying the light guide 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 line light sources into surface light sources. In order to protect the light guide plate during transportation and idleness, a protective film is currently installed on the outside of the light guide plate;

[0003] If the light guide plate is not installed and used temporarily 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 glues 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 conveniently when the light guide plate is used subsequently. Summary of the invention

[0004] The purpose 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 supporting film assemblies are 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 is interspersed with a strip film 2, one end of the strip film 2 is bonded and fixed to the middle position of the strip film 2 itself, and the strip film 1 and the strip film 2 are both fixed with corner sleeves at the corner positions close to the light guide plate;

[0008] There are two outer protective films, which are respectively sleeved on the outer sides of the strip film 1 and the strip film 2 at corresponding positions. Extension films are fixed on the outer sides of the outer protective films near the four corners, and the extension films are bonded and fixed to the corner sleeves at corresponding positions.

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

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

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

[0012] Furthermore, the hexagonal area is arranged between the corresponding positions of the 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 comprises 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 strip-shaped membrane 1 is provided with a rectangular through hole, one end of the strip-shaped membrane 2 passes through the rectangular through hole, and the width of the strip-shaped membrane 1 is greater than the width of the strip-shaped membrane 2.

[0016] Furthermore, a film capsule 1 is fixed to the bottom surface of one end of the strip-shaped membrane 2, and glue is contained in the film capsule 1.

[0017] Furthermore, a mesh area 1 is provided on the surface of the second band-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 supporting 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 supporting film assembly are respectively sleeved and fixed at the corner positions of the light guide plate, and the strip film 2 passing through the strip film 1 is pulled, so that the strip film (including the strip film 1 and the strip film 2) cooperates with the two corner sleeves to be tensioned and bound on the outside of the light guide plate, and a film capsule 1 with glue is fixed on the bottom surface of the two ends of the strip film, and one end of the strip film 2 fixed with the film capsule 1 is pressed to a mesh area 1 position on the outside of 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 supporting film assembly on the outside of the light guide plate, and the glue fixing the supporting film assembly does not contact the light guide plate, so as to prevent the incompletely cured glue from contaminating the light guide plate.

[0020] 2. An outer protective film is sleeved on the outside of the strip film, and multiple fibers are cross-fixed inside the outer protective film. The 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. Multiple extension films are fixed on the circumferential side of the outer protective film, and a film capsule body 2 injected 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 film capsule body 2 on the inner side of the extension film is squeezed and broken to flow out glue. The glue will bond and fix 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 into pieces so that the outer protective film can be directly separated from the light guide plate, and the strip film one or the strip film two 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, and the solidified glue can be prevented from remaining on the outside of the light guide plate, thereby 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 It is a schematic diagram of the overall structure of the present invention and a square light guide plate;

[0023] Figure 2 It 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 The structure of the light guide plate and the supporting film assembly in the present invention is schematically shown. Figure 1 ;

[0025] Figure 4 The structure of the light guide plate and the supporting film assembly in the present invention is schematically shown. Figure 2 ;

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

[0027] Figure 6 The structure of the supporting membrane assembly in the present invention is shown in FIG. Figure 1 ;

[0028] Figure 7 The structure of the supporting membrane assembly in the present invention is shown in FIG. 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 film assembly; 110, first strip-shaped film; 120, second strip-shaped film; 121, first film bladder; 122, first mesh area; 130, corner sleeve; 200, outer protective film; 210, extension film; 211, second film bladder; 220, fiber; 230, triangular area; 240, hexagonal area; 300, square light guide plate body. Detailed implementation mode

[0031] Next, in combination with the drawings in the embodiments of the present invention, the technical solutions in the embodiments of the present invention will be clearly and completely described. Obviously, the described embodiments are only a part of the embodiments of the present invention, rather than all the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by those of ordinary skill in the art without creative work shall fall within the protection scope of the present invention.

[0032] Example 1, please refer to Figure 1 - Figure 8 In the embodiment of the present invention, an environment-friendly light guide plate protective film includes two support film assemblies 100. The two support film assemblies 100 are respectively sleeved on the bottom surface and the top surface of the light guide plate. The support film assembly 100 includes a first strip-shaped film 110. One end of the first strip-shaped film 110 is inserted with a second strip-shaped film 120. One end of the second strip-shaped film 120 is adhesively fixed to the middle position of the second strip-shaped film 120 itself. Corner sleeves 130 are fixed at the corner positions of the first strip-shaped film 110 and the second strip-shaped film 120 close to the light guide plate. An outer protective film 200 is sleeved outside the support film assembly 100. Extension films 210 are fixed at the positions close to the four corners outside the outer protective film 200. The extension films 210 are adhesively fixed to the corresponding corner sleeves 130.

[0033] Specifically, by first sleeving and installing the support film assemblies 100 on the top surface and the bottom surface of the light guide plate, the first strip-shaped film 110 and the second strip-shaped film 120 on the support film assemblies 100 can initially protect the outside of the light guide plate. Then, the outer protective film 200 is fixed on the basis of the already fixed strip-shaped films (including the first strip-shaped film 110 and the second strip-shaped film 120), so that the outer protective film 200 protects the outside of the light guide plate. The support film assemblies 100 are supported and fixed between the light guide plate and the outer protective film 200, which can improve the protection strength of the outer protective film 200. And the protective film composed of the outer protective film 200 and the support film assemblies 100 omits the use of glue to bond with the light guide plate, effectively preventing phenomena such as bubbles and warping of the protective film caused by uneven glue bonding. The glue for fixing the protective film does not contact the light guide plate, which also ensures that the light guide plate is clean and tidy after the film is torn off, guaranteeing that the light guide plate can stably convert the linear light source into a surface light source during subsequent use.

[0034] Such as Figure 5As shown, in the present embodiment, the corner sleeve 130 includes a triangular film and two rectangular films, 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 the subsequent traction of the strip film 120 to bind and fix the two corner sleeves 130 on the outside of the light guide plate.

[0035] like Figure 2 As shown, in the present embodiment, a second film capsule 211 is fixed to the inner side of the stretch 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 stretch membrane 210 to the outer side of the corner sleeve 130, the second film capsule 211 on the stretch 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 glue that flows out bonds and fixes the stretch membrane 210 and the corner sleeve 130, thereby achieving bonding and fixing of the stretch membrane 210 and the corner sleeve 130, and thus 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 sac 211 on the outside of the corner sleeve 130. During the pressing process of the film sac 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 positions of 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 area 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. Therefore, after the outer protective film 200 is sleeved onto the outside of the light guide plate, the outer protective film 200 and the light guide plate can fit tightly together, effectively preventing the accumulation of dust and impurities in the reserved space 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 crosswise. 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 the present 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, and pulling one end of the strip film 2 120 passing 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 10 to adjust its length, the overall length of the strip film composed of the strip film 1 10 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 the present 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 that of the film capsule 121.

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

[0045] In this embodiment, the opening area of ​​the mesh area 122 is made larger than the area of ​​the film capsule 121, so that 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 invention is not limited to the details of the exemplary embodiments described above and that the invention can be implemented in other specific forms without departing from the spirit or essential features of the invention. Therefore, the embodiments should be considered exemplary and non-limiting in all respects, and the scope of the invention is defined by the appended claims rather than the foregoing description, and it is intended that all variations falling within the meaning and scope of the equivalent elements of the claims be included in the invention. Any reference numeral in a claim should not be considered as limiting the claim to which it relates.

[0047] In addition, it should be understood that although the present specification is described according to implementation modes, not every implementation mode contains only one independent technical solution. This description 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 may also be appropriately combined to form other implementation modes that can be understood by those skilled in the art.

Claims

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

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 at the bottom of the triangular film, and the triangular film and the rectangular film are respectively attached to 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 stretch film (210), the interior of the second film capsule (211) is filled with glue, and a second mesh area is provided on the outer side of the corner sleeve (130) close to 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 in a corresponding position between the 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 pattern.

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: A rectangular through hole is opened at one end of the strip film 1 (110), and one end of the strip film 2 (120) passes through the rectangular through hole. The width of the strip film 1 (110) is greater than the width of the strip film 2 (120).

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

10. The environmentally friendly light guide plate protective film according to claim 9, characterized in that: A mesh area 1 (122) is provided on the surface of the second band-shaped membrane (120), and the opening area of ​​the mesh area 1 (122) is larger than the area of ​​the thin film capsule 1 (121).

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