Method for regulating the gauge of a transfer film and transfer film

Abstract

The application provides a specification regulation method of a transfer film and the transfer film, and the method comprises the following steps: providing a transfer film to be regulated, the transfer film is provided with a first grid line forming groove, using a first scraper to fill the first grid line forming groove with paint for a first preset distance in a direction from a first end to a second end; and curing the paint to form a second grid line forming groove, the second grid line forming groove is shorter than the first grid line forming groove by a part of length. The application fills the first grid line forming groove with paint by using the scraper, so that a shorter second grid line forming groove is obtained on the basis of the first grid line forming groove, thereby realizing regulation of the specification of the transfer film. In the case of technical replacement and size adjustment, the length of the grid line forming groove on the transfer film can be regulated according to the requirements to adapt to new technology and new size, so that the waste of the transfer film is reduced, and the overall cost of the photovoltaic cell production is reduced.

Description

TECHNICAL FIELD

[0001] The application belongs to the technical field of photovoltaic cells, and particularly relates to a specification regulation method of a transfer film and the transfer film. BACKGROUND

[0002] A photovoltaic cell can convert solar energy into electrical energy by using a photoelectric effect, and is a new type of energy technology that is renewable and pollution-free.

[0003] A grid line for collecting and transmitting current can be arranged on the photovoltaic cell, and the grid line can be printed on the photovoltaic cell by using a laser transfer technology, that is, the grid line material is filled into a grid line forming groove on a transfer film, and then the grid line in the grid line forming groove is transferred to the photovoltaic cell.

[0004] However, the specification of the formed grid line depends on the specification of the grid line forming groove on the transfer film. As a one-time consumable, the transfer film is difficult to adapt to new technologies and new sizes when facing technology updates and size adjustments, resulting in waste of the transfer film and increasing the overall cost of photovoltaic cell production. SUMMARY

[0005] Embodiments of the application provide a specification regulation method of a transfer film and the transfer film to solve or alleviate one or more technical problems in the prior art.

[0006] As one aspect of the embodiments of the application, the embodiments of the application provide a specification regulation method of a transfer film, comprising:

[0007] providing a transfer film to be regulated, the transfer film to be regulated being provided with a first grid line forming groove, the first grid line forming groove comprising opposite first and second ends;

[0008] filling the first grid line forming groove with a first predetermined distance of paint in a direction from the first end towards the second end using a first scraper;

[0009] curing the paint to form a second grid line forming groove, the second grid line forming groove being shorter in length than the first grid line forming groove.

[0010] Optionally, the running speed of the first scraper is 5 cm / s to 10 cm / s.

[0011] Optionally, the first predetermined distance is 1 mm to 15 mm.

[0012] Optionally, the first grid line forming groove is a plurality of first grid line forming grooves, the first scraper is used to fill the plurality of first grid line forming grooves with paint at the same time, and the first scraper forms a first predetermined angle with a first reference line.

[0013] The first reference line passes through the first ends of the plurality of first grid line forming grooves.

[0014] Optionally, the first preset angle is 1°-15°.

[0015] Optionally, before the curing of the coating, the method further comprises:

[0016] filling the first grid line forming groove with the coating to a second preset distance in a direction from the second end towards the first end using a second scraper.

[0017] Optionally, the first grid line forming groove is a plurality of, and the second scraper is used to fill the plurality of first grid line forming grooves with the coating, and the second scraper forms a second preset angle with a second reference line.

[0018] The second reference line passes through the second ends of the plurality of first grid line forming grooves.

[0019] Optionally, the coating comprises any one of bisphenol A type epoxy acrylate and polyurethane acrylate.

[0020] Optionally, the curing of the coating comprises:

[0021] In the case that the first grid line forming groove is filled with the coating, a preset laser is used to irradiate the first grid line forming groove for a preset time length.

[0022] Optionally, the preset time length of the preset laser irradiation is 0.5s-1.5s, and the wavelength of the preset laser is 370nm-410nm.

[0023] Optionally, before the curing of the coating, the method further comprises filling the first grid line forming groove with the coating to a preset depth using a third scraper.

[0024] As another aspect of the embodiments of the present application, the embodiments of the present application also provide a transfer film, comprising a transfer film regulated by the specification regulation method of the transfer film according to any one of the above.

[0025] The embodiments of the present application fill the first grid line forming groove with the coating by using the first scraper, and then cure the coating to form the second grid line forming groove with a shortened length on the basis of the first grid line forming groove, so as to regulate the specification of the grid line forming groove on the transfer film, and make the transfer film adapt to new technology and new size by regulating the length of the grid line forming groove on the transfer film according to the demand, thereby reducing the waste of the transfer film and the overall cost of the production of the photovoltaic cell.

[0026] The above summary is intended to illustrate, but not limit, the present application. Further aspects, implementations and features of the present application will become apparent from the following detailed description, taken in conjunction with the accompanying drawings and the above description. BRIEF DESCRIPTION OF DRAWINGS

[0027] In the drawings, like reference numerals refer to same or similar components throughout the several views. The drawings are not necessarily to scale, the emphasis instead being placed upon illustrating the principles of the application. It should be understood that the drawings are merely depictions of some embodiments of the application and should not be construed as limiting the scope of the application.

[0028] Figure 1 Flow chart of the specification regulation method of the transfer film of the embodiments of the present application is schematically shown;

[0029] Figure 2 Schematic diagram of the doctor blade and the transfer film in the specification regulation method of the transfer film of the embodiments of the present application;

[0030] Figure 3 Another schematic diagram of the doctor blade and the transfer film in the specification regulation method of the transfer film of the embodiments of the present application;

[0031] Figure 4 Schematic diagram of the paint curing in the specification regulation method of the transfer film of the embodiments of the present application;

[0032] Figure 5 Schematic diagram of the filling paste of the embodiments of the present application;

[0033] Figure 6 Schematic diagram of the doctor blade inclination in the specification regulation method of the transfer film of the embodiments of the present application;

[0034] Figure 7 Another schematic diagram of the doctor blade inclination in the specification regulation method of the transfer film of the embodiments of the present application.

[0035] BRIEF DESCRIPTION OF DRAWINGS

[0036] First doctor blade 31; second doctor blade 32; first gate line forming groove 210; second gate line forming groove 220; first end 201; second end 202; paint 208; preset laser 40; paste 401. DETAILED DESCRIPTION

[0037] Embodiments of the present application are described below in detail with reference to examples thereof illustrated in the accompanying drawings. In the drawings, the size of layers, regions, elements and the relative sizes of the same can be exaggerated for clarity. Like reference numerals refer to like elements throughout. The embodiments described below are exemplary only, and are not to be taken in a limiting sense, but the scope of the present application is defined by the appended claims.

[0038] It should be understood that when an element or layer is referred to as being "on", "adjacent", "connected to" or "coupled to" another element or layer, it can be directly on, adjacent, connected or coupled to the other element or layer, or one or more intervening elements or layers can be present. In contrast, when an element is referred to as being "directly on", "directly adjacent", "directly connected to", or "directly coupled to" another element or layer, then there are no intervening elements or layers present. It will be understood that, although the terms first, second, third, etc. can be used herein to describe various elements, components, regions, layers and / or sections, these elements, components, regions, layers and / or sections should not be limited by these terms. These terms are only used to distinguish one element, component, region, layer or section from another element, component, region, layer or section. Thus, a first element, component, region, layer or section discussed below could be termed a second element, component, region, layer or section without departing from the teachings of the present disclosure and, similarly, a second element, component, region, layer or section discussed below could be termed a first element, component, region, layer or section without departing from the teachings of the present disclosure.

[0039] In the present application, unless specifically defined otherwise, the terms "mounting", "connected", "connecting", "fixed", and the like, should be understood broadly, for example, can be fixed connection, can also be detachable connection, or integral; can be mechanical connection, can also be electrical connection; can be directly connected, can also be indirectly connected through an intermediate medium, can be the internal communication of two elements or the interaction relationship between two elements, unless specifically defined otherwise. For those skilled in the art, the specific meaning of the above terms in the present application can be understood according to the specific circumstances.

[0040] It is to be understood that the terminology used herein is for the purpose of describing particular embodiments only and is not intended to be limiting; for example, as used herein, the singular forms "a", "an" and "the" are intended to include the plural forms as well, unless the context clearly indicates otherwise. It must be noted that as used herein:

[0041] The following provides an explanation of the terms in the present application:

[0042] Scraper: The scraper can accommodate materials inside, and the scraper is provided with a discharge port. The scraper can output the materials accommodated inside along the discharge port in the moving process to coat the materials in the grid line forming groove of the transfer film.

[0043] The embodiments of the present application provide a specification regulation method of a transfer film and the transfer film, so that the transfer film can still be adapted for use in the face of technology changes, size adjustment and the like, avoiding waste of the transfer film, and reducing the overall cost of photovoltaic cell production. See the following for details.

[0044] In the following, exemplary embodiments according to the present application will be described in more detail, with reference to the accompanying drawings. It should be noted that these exemplary embodiments can be implemented in various different forms and should not be construed as being limited to the embodiments set forth herein.

[0045] Please refer to Figures 1 to 4 The embodiments of the present application provide a specification regulation method of a transfer film, which comprises:

[0046] Step S100: providing a transfer film to be regulated, the transfer film to be regulated is provided with a first grid line forming groove, and the first grid line forming groove comprises opposite first and second ends.

[0047] Step S102: using a first scraper to fill the first grid line forming groove with a first predetermined distance of coating in the direction from the first end to the second end.

[0048] Specifically, the first scraper 31 moves along the length direction of the first grid line forming groove 210 from the outside of the first grid line forming groove 210, and starts to fill the coating 208 into the first grid line forming groove 210 when moving to the first end 201. The first scraper 31 stops filling the coating 208 into the first grid line forming groove 210 after moving a first preset distance. It can be understood that the height of the coating 208 filled in the first grid line forming groove 210 is the same as the depth of the first grid line forming groove 210. The number of the first grid line forming groove 210 can be multiple, and the first scraper 31 can simultaneously fill the coating 208 into multiple first grid line forming grooves 210 to ensure the consistency of the regulation specification.

[0049] Step S104: solidifying the coating to form a second grid line forming groove, the second grid line forming groove being shortened in length based on the first grid line forming groove.

[0050] The first grid line forming groove 210 is filled with the coating 208 to form a relatively shorter second grid line forming groove 220. The regulated transfer film can be used to form corresponding grid lines on the surface of the battery piece, improving the application flexibility of the transfer film.

[0051] Specifically, please refer to Figure 5 The paste 401 can also be filled in the second grid line forming groove 220, and the paste 401 serves as a raw material for forming the grid lines. After filling the paste 401, the side of the transfer film provided with the second grid line forming groove 220 is covered on the surface of the battery piece. The paste 401 in the second grid line forming groove 220 contacts the surface of the battery piece due to the action of gravity, and the paste 401 can form corresponding grid lines on the battery piece. Then, the transfer film is removed.

[0052] The transfer film can be removed in multiple ways. In addition to removing the transfer film by tearing, the transfer film can also be removed by using a solution. Illustratively, the material of the transfer film can be a resin material, and the transfer film can be removed by spraying a solution capable of dissolving the resin material on the transfer film or immersing the battery piece with the transfer film in the solution.

[0053] The embodiment of the present application fills the coating 208 into the first grid line forming groove 210 by the first scraper 31, and solidifies the coating 208 to form the second grid line forming groove 220 which is shortened in length based on the first grid line forming groove 210, so as to regulate the specification of the grid line forming groove on the transfer film. In the face of technical iteration and size adjustment, the length of the grid line forming groove on the transfer film can be regulated according to the demand to adapt to new technology and new size, thereby reducing the waste of the transfer film and reducing the overall cost of the photovoltaic cell production.

[0054] In an optional embodiment, the running speed of the first scraper 31 can be 5 cm / s-10 cm / s.

[0055] It should be noted that if there is a gap or bubble in the paint 208 in the first gate line forming groove 210, when the slurry 401 (for forming a gate line) is subsequently filled in the second gate line forming groove 220, the slurry 401 may flow into the gap or bubble, resulting in the shape of the formed gate line being unqualified, or the gate line being stuck with the transfer film, causing the gate line to break when the film is torn, and the like.

[0056] Therefore, limiting the moving speed of the first scraper 31 to 5 cm / s-10 cm / s can make the paint 208 more uniformly filled in the first gate line forming groove 210, and ensure the filling ratio of the paint 208 in the first gate line forming groove 210, thereby reducing the situation that there is a gap or bubble in the paint 208 filled in the first gate line forming groove 210. In other embodiments, the moving speed of the first scraper 31 can also be in other ranges, which can be adjusted according to the depth of the first gate line forming groove 210, the viscosity of the paint 208, and the like.

[0057] In an optional embodiment, the first preset distance that the first scraper 31 moves can be 1 mm-15 mm. Specifically, the first preset distance can be 1 mm, 2 mm, 5 mm, 6 mm, 7 mm, 9 mm, 10 mm, 11 mm, 13 mm, 14 mm, or 15 mm.

[0058] For example, the length of the first gate line forming groove 210 is 100 mm, and the first scraper 31 fills the first gate line forming groove 210 with 10 mm of paint 208 in the direction of the first end 201 towards the second end 202, and after the paint 208 is solidified, the second gate line forming groove 220 is formed, and the length of the second gate line forming groove 220 is 90 mm.

[0059] In other embodiments, the first preset distance can also be in other ranges, as long as it does not exceed the total length of the first gate line forming groove 210. It can be adjusted according to the total length of the first gate line forming groove 210 and the length of the gate line required to be formed by the new process.

[0060] In an optional embodiment, the first gate line forming groove 210 is a plurality of first gate line forming grooves 210, and the first scraper 31 can be used to simultaneously fill the plurality of first gate line forming grooves 210 with paint 208, and the first scraper 31 forms a first preset included angle with the first reference line. The first reference line passes through the first ends 201 of the plurality of first gate line forming grooves 210. Specifically, the first reference line can be a straight line.

[0061] The first scraper 31 fills the paint 208 in the plurality of first grid line forming grooves 210 at the same time, which can not only improve the regulation efficiency of the transfer film, but also make the filling distance, uniformity and quality of the paint 208 filled by the first scraper 31 in the plurality of first grid line forming grooves 210 on the transfer film more uniform, thereby improving the consistency of production.

[0062] In the production of battery pieces, different specifications of battery pieces are usually produced to meet different process or environmental requirements. The light conversion efficiency of battery pieces of different specifications can be tested respectively to obtain corresponding data. The light conversion efficiency of battery pieces is affected by the light radiation intensity and the light receiving area. The light radiation intensity is relatively easy to control, but the light receiving area of battery pieces of different specifications will be different due to different battery specifications.

[0063] In order to regulate the exposed light receiving area of battery pieces of different specifications, a mask can be used to cover part of the surface of battery pieces of different specifications during testing, so that the exposed light receiving area of battery pieces of different specifications is the same.

[0064] However, since the grid lines on the battery piece have a certain height, the contact area between the mask and the grid line may leak light after the mask covers the grid line, thereby causing inaccurate test results and the like.

[0065] Based on this, please refer to Figure 6 and Figure 7 In an embodiment, the first scraper 31 can be inclined to form a first preset angle between the first scraper 31 and the first reference line in the range of 1° to 15°.

[0066] It should be noted that the first scraper 31 is inclined, but the first scraper 31 still moves in the direction from the first end 201 to the second end 202, which can make the first scraper 31 fill the paint 208 in the plurality of first grid line forming grooves 210 by different distances.

[0067] The paint 208 can form a plurality of second grid line forming grooves 220 with different lengths after solidification. Based on the second grid line forming grooves 220 with different lengths, grid lines with corresponding shapes can be formed on the battery piece. On the one hand, the contact between the mask and the grid line can be reduced, thereby reducing the inaccuracy of test results caused by light leakage due to the contact surface when the mask covers the battery piece. On the other hand, the light conversion efficiency of a specific area on the surface of the battery piece can be tested more conveniently.

[0068] In order to further improve the flexibility of specification regulation of the transfer film, before the paint 208 is solidified (step S104), the specification regulation method of the transfer film can further include: using the second scraper 32 to fill the paint 208 in the first grid line forming groove 210 by a second preset distance in the direction from the second end 202 to the first end 201.

[0069] The moving direction of the second scraper 32 is opposite to that of the first scraper 31, that is, the first scraper 31 and the second scraper 32 are respectively located at two ends of the first grid line forming groove 210 and move close to each other to fill the first grid line forming groove 210 with the coating 208. The first scraper 31 and the second scraper 32 can be operated respectively or simultaneously.

[0070] For example, the length of the first grid line forming groove 210 is 100 mm, and when it is required to fill the first grid line forming groove 210 with 10 mm of the slurry 401 to regulate the second grid line forming groove 220 to 90 mm, specifically, the first scraper 31 can be used to fill the first grid line forming groove 210 with 5 mm of the coating 208 in the direction from the first end 201 to the second end 202, and the second scraper 32 can be used to fill the first grid line forming groove 210 with 5 mm of the coating 208 in the direction from the second end 202 to the first end 201.

[0071] It can be understood that if only 10 mm of the coating 208 is filled at the first end 201 of the first grid line forming groove 210, the second grid line forming groove 220 formed will be located close to one side edge of the transfer film. When the transfer film is covered on the battery piece, it can cause the side edge of the transfer film to exceed the battery piece, which can easily cause the transfer film to be unstable. By filling the coating 208 at both sides of the first grid line forming groove 210 respectively, the second grid line forming groove 220 formed can be located at a relatively central position on the transfer film, so as to reduce the situation that the edge of the transfer film exceeds the battery piece.

[0072] Further, the running speed of the second scraper 32 can be the same as that of the first scraper 31, and the second preset distance moved by the second scraper 32 can also be the same as the first preset distance. It should be noted that the length of the first preset distance and the second preset distance should be less than the total length of the first grid line forming groove 210.

[0073] Referring to Figure 6 and Figure 7 , the second scraper 32 can also simultaneously fill multiple first grid line forming grooves 210 with the coating 208, the second scraper 32 forms a second preset angle with the second reference line, and the second reference line passes through the second ends 202 of the multiple first grid line forming grooves 210. The second preset angle is 1°-15°, and the second scraper 32 is inclined to achieve a similar effect to the inclination of the first scraper 31, which will not be described here.

[0074] In an optional embodiment, in order to facilitate the curing of the coating 208, the coating 208 can include any one of bisphenol A type epoxy acrylate and polyurethane acrylate. The above-mentioned materials have relatively stable weather resistance and chemical stability, and relatively fast curing.

[0075] In some embodiments, the coating 208 can also include other materials as long as the rapid curing can be achieved and no reaction with the transfer film is formed and the formation of the grid lines of the photovoltaic cell is not affected.

[0076] Further, the coating 208 can include any one of bisphenol A type epoxy acrylate, polyurethane acrylate. In an optional embodiment, referring to Figure 4 The curing of the coating 208 (step S104) can include irradiating the first grid line forming groove 210 with the preset laser 40 for a preset time duration in the case that the first grid line forming groove 210 is filled with the coating 208. The irradiation with the laser can rapidly cure the coating 208 and accelerate the curing speed of the coating 208 in the first grid line forming groove 210 to quickly obtain the second grid line forming groove 220 and improve the efficiency of the specification regulation of the transfer film.

[0077] Specifically, the preset time duration of the irradiation of the preset laser 40 can be 0.5s-1.5s and the wavelength of the preset laser 40 can be 370nm-410nm. In other embodiments, according to the different materials of the coating 208, the preset time duration of the irradiation of the preset laser 40 can also be other time durations and the wavelength of the preset laser 40 can also be other ranges.

[0078] In an optional embodiment, before the curing of the coating (step S104), the method of the embodiment of the application can further include filling the first grid line forming groove with the coating to a preset depth using a third scraper (not marked in the figure). The third scraper can move from the first end or the second end of the first grid line forming groove to the other end. It can be understood that the preset depth will not be greater than the depth of the first grid line forming groove to avoid the coating completely filling the first grid line forming groove.

[0079] By filling the first grid line forming groove with the coating to a preset depth, the depth of the second grid line forming groove obtained after the curing of the coating can be less than the depth of the first grid line forming groove, so that the depth of the grid line forming groove on the transfer film can be regulated to form the grid line of the corresponding height on the cell sheet, and the flexibility of the specification regulation of the transfer film is improved.

[0080] The embodiment of the application further provides a transfer film including the transfer film regulated by the specification regulation method of any one of the above-mentioned embodiments.

[0081] The transfer film in the embodiment can be used to form the corresponding grid line on the cell sheet. Specifically, the scraper can be used to fill the paste in the second grid line forming groove of the transfer film, the paste is used as the raw material for forming the grid line, the paste is filled, then the side of the transfer film provided with the second grid line forming groove is covered on the surface of the cell sheet, the paste in the second grid line forming groove contacts the surface of the cell sheet due to the action of gravity, the paste forms the grid line of the corresponding shape on the cell sheet, and then the transfer film is removed.

[0082] It should be noted that the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "back", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", "axial", "radial", "circumferential", and the like, are merely used to facilitate the description of the application and are not intended to limit or restrict the orientation or configuration of the devices or elements being described with respect thereto. The terms "inner" and "outer" refer to the inner and outer with respect to the outline of each component itself. For example, if the devices in the drawings are inverted, the device described as "above" or "on" other devices or configurations will be positioned "below" or "under" the other devices or configurations. Thus, the exemplary term "above" can include both the "above" and "below" orientations. The device can also be positioned in other different ways (rotated 90 degrees or in other orientations), and the spatially relative descriptions used herein are interpreted accordingly.

[0083] It should also be noted that the terms "one embodiment", "another embodiment", "an embodiment", etc. as used in the specification refer to specific features, structures, or characteristics described in connection with that embodiment, and that the appearance of the same in different embodiments is not necessarily indicative of the same or similar features, structures, or characteristics being present in other embodiments. Further, the described features, structures, or characteristics can be combined in any suitable manner in one or more embodiments.

[0084] In the above embodiments, the description of each embodiment is focused on different aspects, and the parts not described in detail in a certain embodiment can be referred to the relevant description of other embodiments.

[0085] It should also be noted that the above are only the preferred embodiments of the present application, and do not limit the patent protection scope of the present application, and any equivalent structure or equivalent process transformation using the content of the present application specification and drawings, or direct or indirect application in other related technical fields, are also included in the patent protection scope of the present application.

Claims

1. A method for controlling the specifications of a transfer film, characterized in that, include: A transfer film to be controlled is provided, wherein a first grid line forming groove is provided on the transfer film to be controlled, and the first grid line forming groove includes a first end and a second end opposite to each other. The first scraper is used to fill the first grid forming groove with paint at a first preset distance along the direction from the first end to the second end; The coating is cured to form a second grid line forming groove, which is shortened in length from the first grid line forming groove. The coating comprises either bisphenol A type epoxy acrylate or polyurethane acrylate, and the coating does not react with the transfer film. The transfer film is used to transfer the grid line material filled in the first grid line forming groove onto the photovoltaic cell to form grid lines.

2. The method for controlling the specifications of the transfer film according to claim 1, characterized in that, The first scraper operates at a speed of 5cm / s to 10cm / s.

3. The method for controlling the specifications of the transfer film according to claim 1, characterized in that, The first preset distance is 1mm to 15mm.

4. The method for controlling the specifications of the transfer film according to claim 1, characterized in that, There are multiple first grid line forming grooves, and the first scraper is used to fill multiple first grid line forming grooves with paint at the same time. The first scraper forms a first preset angle with the horizontal plane where the first reference line is located. The first baseline passes through the first end of a plurality of the first grid line forming grooves.

5. The method for controlling the specifications of the transfer film according to claim 4, characterized in that, The first preset included angle is 1°~15°.

6. The method for controlling the specifications of the transfer film according to any one of claims 1 to 5, characterized in that, Before curing the coating, the method further includes: Using a second scraper, paint is filled into the first grid forming groove at a second preset distance along the direction from the second end toward the first end.

7. The method for controlling the specifications of the transfer film according to claim 6, characterized in that, The first grid forming groove is multiple, and the second scraper is used to fill the multiple first grid forming grooves with paint. The second scraper forms a second preset angle with the horizontal plane where the second reference line is located. The second reference line passes through the second end of a plurality of the first grid line forming grooves.

8. The method for controlling the specifications of the transfer film according to any one of claims 1 to 5, characterized in that, The process of curing the coating includes: When the first grid forming groove is filled with coating, the first grid forming groove is irradiated with a preset laser for a preset duration.

9. The method for controlling the specifications of the transfer film according to claim 8, characterized in that, The preset duration of the preset laser irradiation is 0.5s to 1.5s, and the wavelength of the preset laser is 370nm to 410nm.

10. The method for controlling the specifications of the transfer film according to any one of claims 1 to 5, characterized in that, Before curing the coating, the method further includes: using a third scraper to fill the first grid forming groove with coating to a predetermined depth.

11. A transfer film, characterized in that, The transfer film includes the transfer film after being controlled by the specification control method as described in any one of claims 1 to 10.

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