Optical film capable of avoiding indentation

Abstract

The utility model discloses an optical film capable of avoiding indentation, which is used for being laminated on a touch screen by adopting a screen laminating machine, the optical film comprises a release film, an optical film body and a bearing film which are sequentially superposed from bottom to top, one side of the release film is provided with a release extension part, one side of the bearing film is provided with a bearing extension part, and the bearing extension part is provided with a plurality of grooves. And the release extension part and the bearing extension part are positioned on the same side, so that one side of the optical film body is shorter than one side of the release film and one side of the bearing film, and a vacant area is formed. One end of the release film and one end of the bearing film are longer than one end of the optical film body, so that the pressed part does not press the optical film body when the optical film enters the screen laminating machine, and the problem that the initial position of the optical film is pressed by large pressure when being pressed by an equipment roller for the first time to generate indentations can be effectively avoided; therefore, the optical film can meet the requirements of industries with low tolerance to appearance defects, and the competitiveness of products is improved.

Description

Technical Field

[0001] The utility model relates to the technical field of packaging materials, and more specifically to an optical film capable of avoiding indentations. Background Art

[0002] With the development of intelligent technology, passenger aircraft and civil aircraft are becoming more and more common, and a large number of touch screens are also needed on aircraft. Since aircraft fly at high altitudes, there are many uncertain factors, and the materials used are special and the quality requirements are very high. The quality requirements for the display industry are also very high. It is unacceptable for the optical film to be bonded to the touch screen. At present, the surface bonding optical film of the touch screen is generally bonded by a screen bonding machine. However, since the optical film itself is relatively fragile, when the screen bonding machine is used for bonding, the starting position of each optical film is subjected to a large pressure when the equipment roller is pressed for the first time, resulting in indentations on the surface of the bonded optical film. Such optical film bonding cannot meet the needs of industries with a low tolerance for poor appearance, reducing the competitiveness of the product. Utility Model Content

[0003] The technical problem to be solved by the utility model is how to avoid the indentation on one side of the optical film when the screen laminating machine is laminating.

[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 an optical film that can avoid indentation, which is used to be bonded to a touch screen using a screen bonding machine, and includes a release film, an optical film body and a carrier film which are stacked in sequence from bottom to top, a release extension portion is provided on one side of the release film, and a carrier extension portion is provided on one side of the carrier film, and the release extension portion and the carrier extension portion are located on the same side so that one side of the optical film body is shorter than one side of the release film and the carrier film to form a vacant area.

[0006] As a preferred implementation of the indentation-avoiding optical film provided by the utility model, a vacant release portion is provided on the vacant area.

[0007] As a preferred implementation of the indentation-avoiding optical film provided by the utility model, the vacant release portion is integrally formed with the release film.

[0008] As a preferred implementation of the indentation-avoiding optical film provided by the utility model, the release extension portion and the load-bearing extension portion are both 35 mm.

[0009] As a preferred embodiment of the optical film capable of avoiding indentations provided by the utility model, a concave through hole is provided on the release film, and the remaining material of the concave through hole forms a film tearing handle.

[0010] As a preferred embodiment of the optical film capable of avoiding indentation provided by the utility model, waste material of the “concave”-shaped through hole remains on the release film.

[0011] As a preferred implementation of the optical film capable of avoiding indentation provided by the utility model, a bonding area is provided on the waste material of the “concave”-shaped through hole.

[0012] As a preferred implementation of the optical film capable of avoiding indentation provided by the utility model, the “concave”-shaped through hole is arranged at the edge of the release film.

[0013] As a preferred implementation of the optical film capable of avoiding indentation provided by the utility model, each corner of the “concave”-shaped through hole is provided with a rounded corner.

[0014] As a preferred implementation of the indentation-avoiding optical film provided by the utility model, the radius of the rounded corner is 1 mm.

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

[0016] Since one end of the release film and the carrier film is longer than one end of the optical film body, the part that is pressed when entering the screen laminating machine does not press the optical film body. Therefore, it can effectively avoid the problem of indentation caused by the high pressure applied to the starting position of the optical film by the equipment roller when it is first pressed. This allows the optical film to meet the needs of industries with low tolerance for poor appearance, thereby improving the competitiveness of the product. 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 is a schematic structural diagram of an optical film capable of avoiding indentation.

[0019] Figure 2 for Figure 1 Schematic diagram of the decomposition structure.

[0020] Figure 3 for Figure 1 Schematic diagram of the improved structure.

[0021] Figure 4 This is a structural diagram of Example 2.

[0022] Figure 5for Figure 4 Top view of the .

[0023] Figure 6 for Figure 5 Schematic diagram of the improved structure.

[0024] Description of Figure Numbers:

[0025] Release film 1; optical film body 2; carrier film 3; release extension portion 11; carrier extension portion 31; vacant area 21; vacant release portion 32;

[0026] A through hole 4 in the shape of a Chinese character "concave"; a film-tearing handle 5; waste material 6; and a bonding area 7. DETAILED DESCRIPTION

[0027] 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.

[0028] 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.

[0029] 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.

[0030] The utility model provides an optical film capable of avoiding indentations, which is used for being bonded to a touch screen by a screen bonding machine, and comprises a release film, an optical film body and a carrier film which are sequentially stacked from bottom to top, a release extension portion is arranged on one side of the release film, a carrier extension portion is arranged on one side of the carrier film, and the release extension portion and the carrier extension portion are located on the same side so that one side of the optical film body is shorter than one side of the release film and the carrier film to form a vacant area.

[0031] Since one end of the release film and the carrier film is longer than one end of the optical film body, the part that is pressed when entering the screen laminating machine does not press the optical film body. Therefore, it can effectively avoid the problem of indentation caused by the high pressure applied to the starting position of the optical film by the equipment roller when it is first pressed. This allows the optical film to meet the needs of industries with low tolerance for poor appearance, thereby improving the competitiveness of the product.

[0032] 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.

[0033] Example 1

[0034] See also Figures 1 to 3 , an optical film that can avoid indentation provided by the utility model, which is used to be bonded to a touch screen by a screen bonding machine, and includes a release film 1, an optical film body 2 and a carrier film 3 that are sequentially stacked from bottom to top, a release extension 11 is provided on one side of the release film 1, and a carrier extension 31 is provided on one side of the carrier film 3, and the release extension 11 and the carrier extension 31 are located on the same side so that one side of the optical film body 2 is shorter than one side of the release film 1 and the carrier film 3 to form a vacant area 21. Since one end of the release film 1 and the carrier film 3 is longer than one end of the optical film body 2, the part that is pressed when entering the screen bonding machine does not press the optical film body 2, so that the problem of indentation caused by the large pressure on the starting position of the optical film when the roller of the equipment is pressed for the first time can be effectively avoided, so that the optical film can meet the needs of industries with low tolerance for poor appearance, and improve the competitiveness of the product.

[0035] Furthermore, an empty release portion 32 is provided on the empty area 21 , and the empty release portion 32 fills the empty area 21 , so that the force on the optical film is uniform, thereby preventing the optical film from being deformed.

[0036] Furthermore, the vacant release portion 32 is integrally formed with the release film 1 , and when the release film 1 is torn off, the vacant release portion 32 can be taken away together.

[0037] Furthermore, the release extension portion 11 and the bearing extension portion 31 are both 35 mm.

[0038] Example 2

[0039] See also Figures 4 to 6 As a further optimization scheme of Example 1, in this embodiment, a "concave" shaped through hole 4 is opened on the release film 1, and the residual material of the "concave" shaped through hole 4 forms a film tearing handle 5, so there is no need to add a film tearing handle 5 on the periphery of the release film 1. Therefore, the film tearing handle 5 will not be unable to be placed due to the limitation of the peripheral space, avoiding the situation where tweezers need to be used to lift the film when the peripheral space is limited, thereby saving labor costs; and the material of the peripheral film tearing handle 5 can be omitted, which can greatly reduce the material cost.

[0040] Furthermore, the waste material 6 of the “concave”-shaped through hole 4 remains on the release film 1. Before the release film 1 is torn off, the waste material 6 is still connected to the release film 1, which can effectively prevent dust or other particles from entering the product surface. Since the waste material 6 is still connected to the release film 1, it is difficult to tear off the film tearing handle 5 at this time, so an adhesive area 7 can be set on the upper surface of the waste material 6, preferably adhesive, but not limited to this. When tearing off the upper release film 1, the waste material 6 can be torn off with the adhesive first, and then the release film 1 can be torn off with the film tearing handle 5.

[0041] Furthermore, the “concave”-shaped through hole 4 is arranged at the edge of the release film 1 , so that the release film 1 is easier to tear off, and the tearing handle 5 is not damaged due to high tearing difficulty.

[0042] Furthermore, each corner of the "concave"-shaped through hole 4 is provided with a rounded corner, so that the stress during film tearing is not concentrated at the corner, thereby avoiding the film tearing handle 5 from being torn due to stress concentration, and further improving the working efficiency.

[0043] Furthermore, the radius of the rounded corner is 1 mm.

[0044] 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.

[0045] 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. An optical film capable of avoiding indentation, which is used to be bonded to a touch screen by a screen bonding machine, characterized in that: It includes a release film, an optical film body and a carrier film which are stacked in sequence from bottom to top, a release extension portion is provided on one side of the release film, a carrier extension portion is provided on one side of the carrier film, and the release extension portion and the carrier extension portion are located on the same side so that one side of the optical film body is shorter than one side of the release film and the carrier film to form a vacant area.

2. The indentation-avoiding optical film according to claim 1, characterized in that: The vacant area is provided with an vacant release portion.

3. The indentation-avoiding optical film according to claim 2, characterized in that: The vacant release portion is integrally formed with the release film.

4. The indentation-avoiding optical film according to claim 1, characterized in that: The release extension portion and the load-bearing extension portion are both 35 mm.

5. The indentation-avoiding optical film according to claim 1, characterized in that: The release film is provided with a concave through hole, and the remaining material of the concave through hole forms a film tearing handle.

6. The indentation-avoiding optical film according to claim 5, characterized in that: The waste material of the "concave"-shaped through hole remains on the release film.

7. The indentation-avoiding optical film according to claim 6, characterized in that: A bonding area is provided on the waste material of the "concave"-shaped through hole.

8. The indentation-avoiding optical film according to claim 5, characterized in that: The "concave"-shaped through hole is arranged at the edge of the release film.

9. The indentation-avoiding optical film according to claim 5, characterized in that: Each corner of the "concave"-shaped through hole is provided with a rounded corner.

10. The indentation-avoiding optical film according to claim 9, characterized in that: The radius of the rounded corner is 1 mm.

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