Data processing method, system and related equipment in laser direct imaging process

Abstract

The embodiment of the present invention provides a data processing method, system and related equipment in the process of laser direct imaging, which is used to achieve a balance between imaging accuracy and scanning efficiency in the process of laser scanning imaging. The method of the embodiment of the present invention includes: obtaining each target area of ​​the pixel row where the pixel points of the preset type in the original dot matrix image are located; improving the resolution of the target area in the vertical direction of the laser scanning direction, and reducing the resolution of other areas outside the target area in the vertical direction of the laser scanning direction, so as to obtain a corrected image for laser scanning imaging.

Description

Technical Field

[0001] The present invention relates to the technical field of laser direct imaging, and in particular to a data processing method, system and related equipment in the process of laser direct imaging. Background Art

[0002] Laser direct imaging refers to exposing the pixel points on the photosensitive resin coating surface by moving laser scanning, so as to generate the desired image after the photosensitive resin coating surface is developed.

[0003] In the related art, before controlling the laser to expose the photosensitive resin, the original image is often rasterized with a uniform resolution to obtain the location of the laser exposure point. The applicant has found that if the resolution is too high, the exposure time will be prolonged and the efficiency will be reduced when the original image is rasterized with a uniform resolution for direct laser imaging; if the resolution is too low, the exposure accuracy will be affected. In view of this, it is necessary to improve the existing laser scanning exposure process. Summary of the invention

[0004] The embodiments of the present invention provide a data processing method, system and related equipment in a laser direct imaging process, which are used to achieve a balance between imaging accuracy and scanning efficiency in a laser scanning imaging process.

[0005] A first aspect of an embodiment of the present invention provides a method for processing data in a laser direct imaging process, which may include:

[0006] Acquire each target area of ​​the pixel row where the pixel points of the preset type in the original dot matrix image are located;

[0007] The resolution of the target area in the vertical direction of the laser scanning direction is improved, and the resolution of other areas outside the target area in the vertical direction of the laser scanning direction is reduced, so as to obtain a corrected image for laser scanning imaging; the corrected image is used to determine the position of each pixel point that needs to be exposed in each pixel row, and to determine the distance that needs to be stepped in the vertical direction of the laser scanning direction when performing the next pixel row.

[0008] Optionally, as a possible implementation manner, in the embodiment of the present invention, improving the resolution of the target area in the vertical direction of the laser scanning direction may include:

[0009] The resolution of each target area in the vertical direction of the pixel row is improved respectively; wherein, the higher the proportion of the preset type of pixel points is, the higher the resolution of the corresponding target area in the vertical direction of the pixel row is.

[0010] Optionally, as a possible implementation manner, in the embodiment of the present invention, improving the resolution of the target area in the vertical direction of the laser scanning direction may include:

[0011] Each target area is uniformly increased to the same resolution in the vertical direction of the pixel row.

[0012] Optionally, as a possible implementation manner, in the embodiment of the present invention, reducing the resolution of other areas outside the target area in the vertical direction of the laser scanning direction may include:

[0013] The other regions outside the target region are merged in pixel rows to reduce the resolution of the other regions outside the target region in a direction perpendicular to the laser scanning direction.

[0014] Optionally, as a possible implementation, in an embodiment of the present invention, when a negative photosensitive resin is used, the pixel points of the preset type are non-exposed points in the original dot matrix image;

[0015] Optionally, as a possible implementation, in an embodiment of the present invention, when a positive photosensitive resin is used, the pixel points of the preset type are exposure points in the original dot matrix image.

[0016] A second aspect of an embodiment of the present invention provides a data processing system, which may include:

[0017] An acquisition module, used for acquiring each target area of ​​a pixel row where pixels of a preset type are located in an original dot matrix image;

[0018] An image processing module is used to increase the resolution of the target area in the vertical direction of the laser scanning direction, and reduce the resolution of other areas outside the target area in the vertical direction of the laser scanning direction, so as to obtain a corrected image for laser scanning imaging; the corrected image is used to determine the position of each pixel point that needs to be exposed in each pixel row, and to determine the distance that needs to be stepped in the vertical direction of the laser scanning direction when performing the next pixel row.

[0019] Optionally, as a possible implementation manner, the image processing module in the embodiment of the present invention may include:

[0020] The first processing unit is configured to increase the resolution of each target area in the vertical direction of the pixel row; wherein, the higher the proportion of the preset type of pixel points is, the higher the resolution of the corresponding target area in the vertical direction of the pixel row is.

[0021] Optionally, as a possible implementation manner, the image processing module in the embodiment of the present invention may include:

[0022] The second processing unit uniformly increases the resolution of each target area in the vertical direction of the pixel row to the same.

[0023] Optionally, as a possible implementation manner, the image processing module in the embodiment of the present invention may include:

[0024] The third processing unit merges other areas outside the target area in pixel rows to reduce the resolution of other areas outside the target area in a direction perpendicular to the laser scanning direction.

[0025] A third aspect of an embodiment of the present invention provides a computer device, the computer device comprising a processor, the processor being configured to implement the steps in the first aspect and any possible implementation manner of the first aspect when executing a computer program stored in a memory.

[0026] A fourth aspect of an embodiment of the present invention provides a computer-readable storage medium having a computer program stored thereon. When the computer program is executed by a processor, the steps in the first aspect and any possible implementation of the first aspect are implemented.

[0027] It can be seen from the above technical solutions that the embodiments of the present invention have the following advantages:

[0028] In an embodiment of the present invention, the resolution of each target area of ​​the pixel row where the preset type of pixel points are located in the original dot matrix image is improved in the vertical direction of the laser scanning direction, thereby improving the accuracy of laser scanning imaging. At the same time, the resolution of other areas outside the target area in the vertical direction of the laser scanning direction is reduced, thereby ensuring the efficiency of laser scanning imaging, thereby achieving a balance between imaging accuracy and scanning efficiency in the laser scanning imaging process. BRIEF DESCRIPTION OF THE DRAWINGS

[0029] Figure 1 A schematic diagram of an embodiment of a data processing method in a laser direct imaging process in an embodiment of the present invention;

[0030] Figure 2 It is a schematic diagram of dividing a dot matrix image with different resolutions in a direction perpendicular to the laser scanning direction in a specific application embodiment;

[0031] Figure 3 FIG. 1 is a schematic diagram of an embodiment of a computer device in an embodiment of the present invention. DETAILED DESCRIPTION

[0032] In order to enable those skilled in the art to better understand the scheme of the present invention, the technical scheme in the embodiments of the present invention will be clearly and completely described below in conjunction with the drawings in the embodiments of the present invention. Obviously, the described embodiments are only part of the embodiments of the present invention, not all of the embodiments. Based on the embodiments of the present invention, all other embodiments obtained by ordinary technicians in this field without creative work should fall within the scope of protection of the present invention.

[0033] The terms "first", "second", "third", "fourth", etc. in the specification and claims of the present invention and the above-mentioned drawings are used to distinguish similar objects, and are not necessarily used to describe a specific order or sequence. It should be understood that the data used in this way can be interchanged where appropriate, so that the embodiments described herein can be implemented in an order other than that illustrated or described herein. In addition, the terms "including" and "having" and any variations thereof are intended to cover non-exclusive inclusions, for example, a process, method, system, product or device that includes a series of steps or units is not necessarily limited to those steps or units clearly listed, but may include other steps or units that are not clearly listed or inherent to these processes, methods, products or devices.

[0034] In the description of this application, unless otherwise specified, "multiple" means two or more. Unless otherwise clearly specified and limited, the terms "installed", "connected", and "connected" should be understood in a broad sense, for example, it can be a fixed connection, a detachable connection, or an integral connection; it can be a mechanical connection or an electrical connection; it can be a direct connection or an indirect connection through an intermediate medium, and it can be the internal connection of two components.

[0035] For ease of understanding, the laser array in an embodiment of the present invention is described below. The laser array is composed of laser light sources arranged non-overlappingly in the vertical scanning direction, and the position distribution in the scanning direction (it should be noted that, in the embodiment of the present application, it is stipulated that the straight line direction where the pixel row is located is parallel to the straight line where the laser array scanning direction is located) may overlap or not overlap, and it is only necessary that the relative positions of each laser remain fixed.

[0036] The specific process in the embodiment of the present invention is described below. Figure 1 , an embodiment of a data processing method in a laser direct imaging process in an embodiment of the present invention may include:

[0037] S101: Acquire each target area of ​​a pixel row where pixel points of a preset type in an original dot matrix image are located.

[0038] The applicant found that if the original image is rasterized with a uniform resolution to obtain the original dot matrix image, if the resolution is too high, the exposure time will be prolonged and the efficiency will be reduced; if the resolution is low, the exposure accuracy will be affected. In order to achieve a balance between exposure efficiency and exposure accuracy, the applicant proposed: high-precision scanning is performed in the area where the image pixels are located, thereby improving the exposure accuracy; relatively low-precision scanning is performed in the area where the non-image pixels are located, thereby improving the exposure efficiency.

[0039] In the embodiment of the present application, the pixel points in the original dot matrix image are divided into exposure points and non-exposure points. The existing photosensitive resins are of two types: positive (the exposed pixel area is dissolved and removed) and negative (the unexposed pixel area is dissolved and removed). The preset type of pixel points corresponding to the area where the negative photosensitive resin needs to be imaged are non-laser exposure points, and the preset type of pixel points corresponding to the area where the positive photosensitive resin needs to be imaged are laser exposure points.

[0040] After the original dot matrix image is acquired, each target area of ​​the pixel row where the pixel points of the preset type are located can be acquired according to the type of photosensitive resin. It can be understood that an exposure format can include one or more connected image areas, and each connected image area can be used as a target area (i.e., an area including the pixel points of the preset type).

[0041] S102: improving the resolution of the target area in the direction perpendicular to the laser scanning direction, and reducing the resolution of other areas outside the target area in the direction perpendicular to the laser scanning direction, to obtain a corrected image for laser scanning imaging.

[0042] The laser array in the embodiment of the present application is composed of laser light sources arranged in a non-overlapping direction perpendicular to the scanning direction. After each pixel row is scanned, it is necessary to step in the vertical direction of the scan to scan the pixel rows between adjacent laser light sources. Therefore, when the distance between adjacent laser light sources is determined, the distance between adjacent pixel rows in the vertical direction determines the number of pixel rows required to be scanned, that is, the resolution in the vertical direction of the laser scanning direction determines the number of pixel rows required to be scanned, and also determines the efficiency of laser scanning imaging. In addition, since the spot size of the laser light source in the embodiment of the present application is often much larger than the size of a single pixel point (the spot size is at least 3 times the minimum pixel size), the smaller the scanning spacing, the higher the accuracy, and the resolution in the vertical direction also affects the accuracy of laser scanning.

[0043] In order to improve the efficiency of scanning imaging as much as possible without sacrificing accuracy, in the embodiment of the present application, the resolution of each target area in the original dot matrix image in the vertical direction of the laser scanning direction is improved, so that the accuracy of scanning exposure imaging can be improved; at the same time, the resolution of other areas outside each target area in the vertical direction of the laser scanning direction is reduced, so that the efficiency of scanning exposure imaging can be improved, and finally a corrected image for laser scanning imaging is obtained. Based on the position of the preset type of pixel points in the corrected image and the resolution of each preset type of pixel points in the vertical direction of the laser scanning direction, the position of each pixel point that needs to be exposed in each pixel row can be determined, and the distance that needs to be stepped in the vertical direction when performing the next pixel row can be determined (determined by the resolution in the vertical direction of the laser scanning direction).

[0044] It can be understood that the higher the proportion of the preset type of pixel points in the target area, the higher the proportion of the image of the target area to the entire format, and the higher the corresponding image accuracy, the better; conversely, the lower the proportion of the preset type of pixel points in the target area, the lower the proportion of the image of the target area to the entire format, and the corresponding image accuracy can be relatively low to avoid affecting the efficiency of scanning exposure. Therefore, the resolution of the target area in the vertical direction of the laser scanning direction can be further differentiated. As a possible implementation method, improving the resolution of each target area in the vertical direction of the laser scanning direction in the original dot matrix image can include: improving the resolution of each target area in the vertical direction of the pixel row; wherein, the higher the proportion of the preset type of pixel points, the higher the resolution of the corresponding target area in the vertical direction of the pixel row.

[0045] For example, Figure 2 As shown, the resolutions that are sequentially increased in the vertical direction of the pixel row are set to be the first resolution, the second resolution, the third resolution, and the fourth resolution. These four resolutions correspond to the preset types of pixel points ( Figure 2 The proportion interval of the black dots in the image is Q1, Q2, Q3, and Q4 in sequence; if the proportion of the preset type of pixels in area A, area B, and area C is Q2, Q3, and Q4 respectively, then the vertical direction of the pixel row of area A, area B, and area C is increased to the second resolution, the third resolution, and the fourth resolution in sequence, while there is no pixel of the preset type in area D, and the vertical direction of the pixel row is reduced to the first resolution.

[0046] Optionally, as a possible implementation, improving the resolution of each target area in the original dot matrix image in the direction perpendicular to the laser scanning direction may include: uniformly improving each target area in the direction perpendicular to the pixel row to the same resolution.

[0047] Optionally, as a possible implementation, reducing the resolution of other areas outside the target area in the vertical direction of the laser scanning direction may include: merging other areas outside the target area in pixel rows to reduce the resolution of other areas outside the target area in the vertical direction of the laser scanning direction. It is understandable that the merging of pixel rows may be two-by-two merging or multiple-row merging, and other methods may be used to reduce the resolution, which is not limited here.

[0048] It can be seen from the above disclosed content that in the embodiment of the present application, the resolution of each target area of ​​the pixel row where the preset type of pixel points are located in the original dot matrix image is improved in the vertical direction of the laser scanning direction, thereby improving the accuracy of laser scanning imaging. At the same time, the resolution of other areas outside the target area in the vertical direction of the laser scanning direction is reduced, thereby ensuring the efficiency of laser scanning imaging, and thus achieving a balance between the accuracy and efficiency of laser scanning imaging.

[0049] It can be understood that in various embodiments of the present application, the size of the serial numbers of the above steps does not mean the order of execution. The execution order of each step should be determined by its function and internal logic, and should not constitute any limitation on the implementation process of the embodiments of the present application.

[0050] The present application also provides a data processing system, which may include:

[0051] An acquisition module, used for acquiring each target area of ​​a pixel row where pixels of a preset type are located in an original dot matrix image;

[0052] An image processing module is used to increase the resolution of the target area in the vertical direction of the laser scanning direction, and reduce the resolution of other areas outside the target area in the vertical direction of the laser scanning direction, so as to obtain a corrected image for laser scanning imaging; the corrected image is used to determine the position of each pixel point that needs to be exposed in each pixel row, and to determine the distance that needs to be stepped in the vertical direction of the laser scanning direction when performing the next pixel row.

[0053] Optionally, as a possible implementation manner, the image processing module in the embodiment of the present invention may include:

[0054] The first processing unit is configured to increase the resolution of each target area in the vertical direction of the pixel row; wherein, the higher the proportion of the preset type of pixel points is, the higher the resolution of the corresponding target area in the vertical direction of the pixel row is.

[0055] Optionally, as a possible implementation manner, the image processing module in the embodiment of the present invention may include:

[0056] The second processing unit uniformly increases the resolution of each target area in the vertical direction of the pixel row to the same.

[0057] Optionally, as a possible implementation manner, the image processing module in the embodiment of the present invention may include:

[0058] The third processing unit merges other areas outside the target area in pixel rows to reduce the resolution of other areas outside the target area in a direction perpendicular to the laser scanning direction.

[0059] Those skilled in the art can clearly understand that, for the convenience and brevity of description, the specific working processes of the systems, devices and units described above can refer to the corresponding processes in the aforementioned method embodiments and will not be repeated here.

[0060] The data processing system in the embodiment of the present invention is described above from the perspective of modular functional entities. Figure 3 , the computer device in the embodiment of the present invention is described below from the perspective of hardware processing:

[0061] The computer device 1 may include a memory 11, a processor 12 and an input / output bus 13. The processor 12 implements the above Figure 1 The steps in the method embodiment shown are, for example, Figure 1 Alternatively, when the processor executes the computer program, the functions of the modules or units in the above-mentioned device embodiments are realized.

[0062] The memory 11 includes at least one type of readable storage medium, and the readable storage medium includes a flash memory, a hard disk, a multimedia card, a card-type memory (for example, an SD or DX memory, etc.), a magnetic memory, a magnetic disk, an optical disk, etc. In some embodiments, the memory 11 may be an internal storage unit of the computer device 1, such as a hard disk of the computer device 1. In other embodiments, the memory 11 may also be an external storage device of the computer device 1, such as a plug-in hard disk equipped on the computer device 1, a smart memory card (Smart Media Card, SMC), a secure digital (Secure Digital, SD) card, a flash card (Flash Card), etc. Further, the memory 11 may also include both an internal storage unit of the computer device 1 and an external storage device. The memory 11 may not only be used to store application software and various types of data installed in the computer device 1, such as the code of a computer program, etc., but may also be used to temporarily store data that has been output or is to be output.

[0063] In some embodiments, the processor 12 may be a central processing unit (CPU), a controller, a microcontroller, a microprocessor or other data processing chip, and is used to run program codes or process data stored in the memory 11, such as executing a computer program.

[0064] The input / output bus 13 may be a peripheral component interconnect (PCI) bus or an extended industry standard architecture (EISA) bus, etc. The bus may be divided into an address bus, a data bus, a control bus, etc.

[0065] Furthermore, the computer device may also include a wired or wireless network interface 14. The network interface 14 may optionally include a wired interface and / or a wireless interface (such as a WI-FI interface, a Bluetooth interface, etc.), which is usually used to establish a communication connection between the computer device 1 and other electronic devices.

[0066] Optionally, the computer device 1 may also include a user interface, which may include a display (Display), an input unit such as a keyboard (Keyboard), and optionally, the user interface may also include a standard wired interface and a wireless interface. Optionally, in some embodiments, the display may be an LED display, a liquid crystal display, a touch-sensitive liquid crystal display, and an OLED (Organic Light-Emitting Diode) touch device, etc. The display may also be appropriately referred to as a display screen or a display unit, which is used to display information processed in the computer device 1 and to display a visual user interface.

[0067] Figure 3 Only the computer device 1 having components 11-14 and a computer program is shown, and those skilled in the art will understand that Figure 3 The structure shown does not constitute a limitation on the computer device 1, and may include fewer or more components than shown in the figure, or combine certain components, or arrange the components differently.

[0068] The present invention also provides a computer-readable storage medium, on which a computer program is stored. When the computer program is executed by a processor, the above-mentioned Figure 1 The steps in the method embodiment shown are, for example, Figure 1 Alternatively, when the processor executes the computer program, the functions of the modules or units in the above-mentioned device embodiments are realized.

[0069] In the several embodiments provided in the present application, it should be understood that the disclosed systems, modules and units can be implemented in other ways. For example, the system embodiments described above are only schematic. For example, the division of the units is only a logical function division. There may be other division methods in actual implementation, such as multiple units or components can be combined or integrated into another system, or some features can be ignored or not executed. Another point is that the mutual coupling or direct coupling or communication connection shown or discussed can be an indirect coupling or communication connection through some interfaces, devices or units, which can be electrical, mechanical or other forms.

[0070] The units described as separate components may or may not be physically separated, and the components shown as units may or may not be physical units, that is, they may be located in one place or distributed on multiple network units. Some or all of the units may be selected according to actual needs to achieve the purpose of the solution of this embodiment.

[0071] In addition, each functional unit in each embodiment of the present invention may be integrated into one processing unit, or each unit may exist physically separately, or two or more units may be integrated into one unit. The above-mentioned integrated unit may be implemented in the form of hardware or in the form of software functional units.

[0072] If the integrated unit is implemented in the form of a software functional unit and sold or used as an independent product, it can be stored in a computer-readable storage medium. Based on this understanding, the technical solution of the present invention is essentially or the part that contributes to the prior art or all or part of the technical solution can be embodied in the form of a software product. The computer software product is stored in a storage medium, including several instructions for a computer device (which can be a personal computer, a server, or a network device, etc.) to perform all or part of the steps of the method described in each embodiment of the present invention. The aforementioned storage medium includes: U disk, mobile hard disk, read-only memory (ROM, Read-Only Memory), random access memory (RAM, Random Access Memory), disk or optical disk and other media that can store program codes.

[0073] As described above, the above embodiments are only used to illustrate the technical solutions of the present invention, rather than to limit the same. Although the present invention has been described in detail with reference to the aforementioned embodiments, those skilled in the art should understand that the technical solutions described in the aforementioned embodiments may still be modified, or some of the technical features thereof may be replaced by equivalents. However, these modifications or replacements do not deviate the essence of the corresponding technical solutions from the spirit and scope of the technical solutions of the embodiments of the present invention.

Claims

1. A data processing method in a laser direct imaging process, characterized in that: A laser array consisting of laser light sources arranged non-overlappingly in the vertical direction for scanning, including: Acquire each target area of ​​the pixel row where the pixel points of the preset type in the original dot matrix image are located; The resolution of the target area in the vertical direction of the laser scanning direction is improved, and the resolution of other areas outside the target area in the vertical direction of the laser scanning direction is reduced, so as to obtain a corrected image for laser scanning imaging; the corrected image is used to determine the position of each pixel point that needs to be exposed in each pixel row, and to determine the distance that needs to be stepped in the vertical direction of the laser scanning direction when performing the next pixel row.

2. The method according to claim 1, characterized in that Improving the resolution of the target area in a direction perpendicular to the laser scanning direction, including: The resolution of each target area in the vertical direction of the pixel row is improved respectively; wherein, the higher the proportion of the preset type of pixel points is, the higher the resolution of the corresponding target area in the vertical direction of the pixel row is.

3. The method according to claim 1, characterized in that Improving the resolution of the target area in a direction perpendicular to the laser scanning direction, including: Each target area is uniformly increased to the same resolution in the vertical direction of the pixel row.

4. The method according to any one of claims 1 to 3, characterized in that Reducing the resolution of other areas outside the target area in the vertical direction of the laser scanning direction, including: The other regions outside the target region are merged in pixel rows to reduce the resolution of the other regions outside the target region in a direction perpendicular to the laser scanning direction.

5. The method according to any one of claims 1 to 3, characterized in that When negative photoresist is used, the pixel points of the preset type are non-exposed points in the original dot matrix image.

6. The method according to any one of claims 1 to 3, characterized in that When positive photosensitive resin is used, the pixel points of the preset type are exposure points in the original dot matrix image.

7. A data processing system, characterized in that: include: An acquisition module, used for acquiring each target area of ​​a pixel row where pixels of a preset type are located in an original dot matrix image; An image processing module is used to increase the resolution of the target area in the vertical direction of the laser scanning direction, and reduce the resolution of other areas outside the target area in the vertical direction of the laser scanning direction, so as to obtain a corrected image for laser scanning imaging; the corrected image is used to determine the position of each pixel point that needs to be exposed in each pixel row, and to determine the distance that needs to be stepped in the vertical direction of the laser scanning direction when performing the next pixel row.

8. The system according to claim 7, characterized in that Image processing module, including: The first processing unit is configured to increase the resolution of each target area in the vertical direction of the pixel row; wherein, the higher the proportion of the preset type of pixel points is, the higher the resolution of the corresponding target area in the vertical direction of the pixel row is.

9. A computer device, characterized in that: The computer device comprises a processor, and the processor is configured to implement the method according to any one of claims 1 to 6 when executing a computer program stored in a memory.

10. A computer-readable storage medium having a computer program stored thereon, characterized in that: When the computer program is executed by a processor, the method according to any one of claims 1 to 6 is implemented.

Images