Pattern manufacturing method of solar screen inspection film

Abstract

The invention relates to a pattern manufacturing method of a solar screen inspection film. The pattern manufacturing method comprises the following steps: segmenting lines in an original film pattern according to different line types; placing the first linear lines in the first pattern layer, and performing thickening processing on the first linear lines; placing the second linear lines in a second pattern layer, and filling the second linear lines; and combining the first pattern layer and the second pattern layer to obtain a target film pattern. The method comprises the following steps of: based on a grid line electrode manufacturing graph of the solar panel, respectively carrying out thickening and filling treatment on lines of different line types to obtain a target film graph, manufacturing an inspection film according to the target film graph, and subsequently comparing the grid line patterns of the solar panel to obtain a grid line electrode of the solar panel. In the production process, by using the film inspection jig, process quality monitoring can be effectively carried out, abnormity can be found and reduced in the first time, invalid rework cost is reduced, and the final yield of finished products is improved.

Description

Technical Field

[0001] This invention relates to the field of solar screen printing technology, specifically to a method for creating patterns in solar screen inspection film. Background Technology

[0002] Solar panels are widely used in the semiconductor field due to their advantages such as being clean and pollution-free, renewable, and having stable performance. To connect solar panels to electrical devices, grid electrodes need to be installed on the surface of the solar panel to facilitate current conduction.

[0003] In the current production process, screen printing is usually used to print grid electrodes. The grid pattern on the screen printing is then made using laser engraving. Initial manual visual inspection is required, and film is used for comparison with reference objects to check for laser defects.

[0004] Manual visual inspection is inefficient and prone to misjudgment and omission. Therefore, how to improve the film inspection process to increase product inspection efficiency has become an urgent problem to be solved. Summary of the Invention

[0005] In view of this, embodiments of the present invention provide a method for creating patterns on solar panel inspection film, in order to solve the problem that in the prior art, manual visual inspection of the grid pattern of solar panels is used, which results in low inspection efficiency and is prone to misjudgment and omission, leading to a low yield of finished products.

[0006] This invention provides a method for creating patterns in solar screen inspection film, comprising: The lines in the original film image are divided according to different line types; Place the first line type on the first layer and thicken the first line type; Place the second line type on the second layer and fill the second line type; Merge the first and second layers to obtain the target film image; The first type of line is a thin grid line, a main grid line, or a chamfered border, while the second type of line is a gradient line, a harpoon line, or a pad.

[0007] Optionally, before segmenting the lines in the original film graphic according to different line types, the method further includes: Determine the screen type of the image to be created from; If the film graphic to be created is a fine grid screen, then the first line type is a fine grid line, and the second line type is a gradient line and / or a harpoon line; If the current film graphic to be created is the main grid screen, then the first line type is the main grid line.

[0008] Optionally, if the film graphic to be created is a main grid screen, before performing the step of segmenting the lines in the original film graphic according to different line types, the following steps are also included: Determine whether there are other line types in the current film graphic to be created, and whether to thicken or fill other lines; other line types include border chamfers and pads.

[0009] Optionally, the step of segmenting the lines in the original film graphic according to different line types includes: For any horizontal line in the original film image, determine whether it meets the first preset angle condition and the first preset length condition. If both conditions are met, then divide the horizontal line into a fine grid line. For any vertical line in the original film image, determine whether it meets the second preset angle condition and the second preset length condition. If both conditions are met, then the vertical line is classified as a main grid line.

[0010] Optionally, in the step of dividing any horizontal line in the original film image into a fine grid line, if both conditions are met, the first preset angle condition is: the angle between the horizontal line and the horizontal direction is 0 degrees; the first preset length condition is: greater than or equal to 5 centimeters.

[0011] Optionally, in the step of determining whether any vertical line in the original film graphic meets the second preset angle condition and the second preset length condition, if both are met, the vertical line is divided into a main grid line. The second preset angle condition is: the angle between the vertical line and the main grid line is 0 degrees; the second preset length condition is: greater than or equal to 0.1 mm.

[0012] Optionally, if there are pad lines in the current film graphic to be created, and the pad lines need to be filled, then the pad lines to be filled with an area greater than or equal to a preset value will be filled.

[0013] Optionally, the step of thickening the first line type includes: Using the center segment of the first line type as a reference, extend it symmetrically upwards and downwards by several pixels until the preset line width is reached.

[0014] Optionally, the step of filling the second line type includes: Check whether the second line type forms a closed shape; Fill the interior of the shape formed by the closed second-line type.

[0015] Optionally, it also includes: Determine the alignment method between the original film graphic and the target film graphic based on the screen type of the current film graphic to be produced.

[0016] The beneficial effects of this invention are: This invention provides a method for creating a pattern for a solar screen inspection film. Based on the grid electrode pattern of a solar panel, lines of different types are thickened and filled to obtain a target film pattern. An inspection film is then created according to the target film pattern. Subsequently, the grid pattern of the solar panel is compared with the target film pattern. For example, the inspection film is stacked on the solar panel, and the grid lines in the inspection film pattern are directly observed for defects by illuminating the film with a light source. Alternatively, the inspection film can be slightly moved up, down, left, or right to observe for problems such as broken lines, uneven thickness, blurry prints, nodules, and missing lines. The inspection film is created using the method provided in this embodiment. Using such a film inspection fixture during the production process can effectively monitor process quality, detect and reduce abnormalities in a timely manner, reduce unnecessary rework costs, and improve the final product yield. Attached Figure Description

[0017] The features and advantages of the invention will be more clearly understood by referring to the accompanying drawings, which are schematic and should not be construed as limiting the invention in any way. In the drawings: Figure 1 A flowchart illustrating a method for creating a pattern for a solar screen inspection film according to an embodiment of the present invention is shown; Figure 2 The original film pattern and a partially enlarged view of a fine grid screen for solar screen inspection film according to an embodiment of the present invention are shown. Figure 3 The software interface for creating a graphic of a solar screen inspection film according to an embodiment of the present invention is shown. Figure 4 This invention illustrates a target film pattern and a partial enlarged view of a fine grid screen used for solar screen inspection film according to an embodiment of the present invention; Figure 5 The illustration shows a target film pattern and a magnified view of a main grid screen for solar screen inspection film according to an embodiment of the present invention. Detailed Implementation

[0018] To further illustrate the technical means and effects of the present invention in achieving its intended purpose, the following detailed description of the specific implementation methods, structure, features and effects of the present invention, in conjunction with the accompanying drawings and preferred embodiments, is provided below.

[0019] like Figures 1 to 4 As shown, this embodiment of the invention provides a method for creating a pattern for a solar screen inspection film, comprising: Step S10: Divide the lines in the original film graphic according to different line types.

[0020] In this embodiment, after the lines in the film pattern are segmented, lines of the same type are processed in batches. Specifically, the original film pattern is obtained based on the grid electrode fabrication pattern of the solar screen.

[0021] Step S20: Place the first line type on the first layer and thicken the first line type.

[0022] Step S30: Place the second line type on the second layer and fill the second line type.

[0023] In this embodiment, the positions of the first and second linear lines remain unchanged relative to the original image after they are segmented into different layers.

[0024] Step S40: Merge the first layer and the second layer to obtain the target film graphic.

[0025] In this embodiment, since the positions of the cut lines remain unchanged, the two layers can be directly merged to obtain the target film pattern. An inspection film is then created based on the target film pattern. The pattern corresponding to the grid lines on the inspection film is transparent or translucent, while the remaining parts are opaque. Subsequently, the grid line pattern of the solar panel is compared. For example, the inspection film is superimposed on the solar panel, and the grid lines in the inspection film pattern are directly observed for defects under light. Alternatively, the inspection film can be slightly moved up, down, left, or right to observe for issues such as broken lines, uneven thickness, blurry prints, nodules, or missing lines. The inspection film is created using the solar screen inspection film pattern creation method provided in this embodiment. Using such a film inspection fixture during production can effectively monitor process quality, detect and reduce abnormalities in a timely manner, reduce unnecessary rework costs, and improve the final product yield.

[0026] As an optional implementation, before step S10, the following steps are also included: Determine the screen type of the film graphic to be created.

[0027] If the film graphic to be created is a fine grid screen, then the first line type is a fine grid line, and the second line type is a gradient line and / or a harpoon line.

[0028] If the current film graphic to be created is the main grid screen, then the first line type is the main grid line.

[0029] In this embodiment, the solar panel's screen type is divided into fine grid screen and main grid screen. Fine grid screen, as shown... Figure 2As shown, a screen has horizontal fine grid lines A, gradient lines B1, B2, and B3, a fork-shaped line C, and usually a surrounding border line and chamfered edges. A main grid screen, on the other hand, basically only has vertical main grid lines and pads. Therefore, before creating a film graphic, it is necessary to determine the current screen type. Figure 3 Select the corresponding settings from the operation menu shown to generate the desired target film image. Figure 4 for Figure 2 The target graphic after thickening and filling the film image.

[0030] In a specific embodiment, the fine grid lines, main grid lines, and border chamfers are all thickened.

[0031] As an optional implementation, if the film graphic to be created is a main grid screen, before performing the step of segmenting the lines in the original film graphic according to different line types, the following steps are also included: Determine whether there are other line types in the current film graphic to be created, and whether to thicken or fill other lines; other line types include border chamfers and pads.

[0032] In this embodiment, some main grid film drawings may have chamfered borders and pads, so additional settings are needed for the processing options of these special lines.

[0033] As an optional implementation, the step of segmenting the lines in the original film graphic according to different line types includes: For any horizontal line in the original film image, determine whether it meets the first preset angle condition and the first preset length condition. If both conditions are met, then divide the horizontal line into a fine grid line.

[0034] The first preset angle condition is: the angle between the angle and the horizontal direction is 0 degrees; the first preset length condition is: greater than or equal to 5 centimeters.

[0035] For any vertical line in the original film image, determine whether it meets the second preset angle condition and the second preset length condition. If both conditions are met, then the vertical line is classified as a main grid line.

[0036] The second preset angle condition is: the angle between the angle and the vertical direction is 0 degrees; the second preset length condition is: greater than or equal to 0.1 millimeters.

[0037] In this embodiment, lines conforming to the fine / main grid line standard are extracted, placed in the first layer, and then thickened. In a specific embodiment, the thickening process includes: using the center segment of the first line type as a reference, extending it symmetrically upwards and downwards by several pixels until a preset line width is reached. In a specific implementation, the preset line width can be set to 50μm.

[0038] As an optional implementation, if there are pad lines in the current film pattern to be created, and the pad lines need to be filled, then the pad lines to be filled with an area greater than or equal to a preset value will be filled.

[0039] In this embodiment, the area is greater than 0.8 mm 2 The pads are filled.

[0040] like Figure 5 As shown, the main gate lines are thickened and the pads are filled.

[0041] As an optional implementation, the step of filling the second line type includes: Check whether the second line type forms a closed shape; Fill the interior of the shape formed by the closed second-line type.

[0042] In this embodiment, the closure of the graphic to be filled is achieved by extending the lines.

[0043] As an optional implementation, it also includes: Determine the alignment method between the original film graphic and the target film graphic based on the screen type of the current film graphic to be produced.

[0044] In this embodiment, the alignment hole settings also differ for different types of screen printing plates; some have six-hole alignment, such as... Figure 4 As shown, both the upper and lower alignment holes D1 and D2 need to be aligned. Sometimes, only two holes need to be aligned, using only the upper and lower alignment holes D1 for alignment. To avoid interference from the alignment hole D2, in... Figure 3 In the operation interface options, configure the "WWJ" item and select either two-hole alignment or six-hole alignment.

[0045] The above description is merely a preferred embodiment of the present invention and is not intended to limit the present invention in any way. Although the present invention has been disclosed above with reference to preferred embodiments, it is not intended to limit the present invention. Any person skilled in the art can make some modifications or alterations to the above-disclosed technical content to create equivalent embodiments without departing from the scope of the present invention. Any simple modifications, equivalent changes and alterations made to the above embodiments based on the technical essence of the present invention without departing from the scope of the present invention shall still fall within the scope of the present invention.

Claims

1. A method for creating patterns on solar screen inspection film, characterized in that, include: The lines in the original film image are divided according to different line types; Place the first line type on the first layer and thicken the first line type; Place the second line type on the second layer and fill the second line type; Merge the first layer and the second layer to obtain the target film image; The first line type is a fine grid line, a main grid line, or a chamfered border, and the second line type is a gradient line, a harpoon line, or a pad.

2. The method for creating a pattern for a solar screen inspection film according to claim 1, characterized in that, Before dividing the lines in the original film image according to different line types, the process also includes: Determine the screen type of the image to be created from; If the film graphic to be created is a fine grid screen, then the first line type is a fine grid line, and the second line type is a gradient line and / or a harpoon line; If the current film graphic to be created is the main grid screen, then the first line type is the main grid line.

3. The method for creating a pattern for a solar screen inspection film according to claim 2, characterized in that, If the film graphic to be created is the main grid screen, before performing the step of segmenting the lines in the original film graphic according to different line types, the following steps are also included: Determine whether there are other line types in the current film graphic to be created, and whether to thicken or fill the other line types; wherein, the other line types include border chamfers and pads.

4. The method for creating a pattern for a solar screen inspection film according to claim 1, characterized in that, The steps of dividing the lines in the original film image according to different line types include: For any horizontal line in the original film pattern, determine whether it meets the first preset angle condition and the first preset length condition. If both conditions are met, then divide the horizontal line into a fine grid line. For any vertical line in the original film pattern, determine whether it meets the second preset angle condition and the second preset length condition. If both conditions are met, then the vertical line is classified as a main grid line.

5. The method for creating a pattern for a solar screen inspection film according to claim 4, characterized in that, In the step of dividing any horizontal line in the original film pattern into a fine grid line, if both conditions are met, it is determined whether the line meets the first preset angle condition and the first preset length condition. The first preset angle condition is: the angle between the line and the horizontal direction is 0 degrees; the first preset length condition is: greater than or equal to 5 centimeters.

6. The method for creating a pattern for a solar screen inspection film according to claim 4, characterized in that, In the step of dividing any vertical line in the original film pattern into a main grid line, if it meets the second preset angle condition and the second preset length condition, and if both conditions are met, the second preset angle condition is: the angle between the vertical line and the vertical direction is 0 degrees; the second preset length condition is: greater than or equal to 0.1 mm.

7. The method for creating a pattern for a solar screen inspection film according to claim 3, characterized in that, If the current film graphic to be created contains pad lines and it is necessary to fill the pad lines, then the pad lines to be filled with an area greater than or equal to a preset value will be filled.

8. The method for creating a pattern for a solar screen inspection film according to claim 1, characterized in that, The step of thickening the first line type includes: Using the center segment of the first linear line as a reference, extend it symmetrically upwards and downwards by several pixels until the preset line width is reached.

9. The method for creating a pattern for a solar screen inspection film according to claim 1, characterized in that, The step of filling the second line type includes: Check whether the second line type forms a closed shape; Fill the interior of the closed shape formed by the second linear line.

10. The method for creating a pattern for a solar screen inspection film according to claim 2, characterized in that, Also includes: The alignment method between the original film graphic and the target film graphic is determined based on the screen type of the current film graphic to be produced.

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