KR101509046B1 - Printing method of built-in cad printing electronic system - Google Patents

Abstract

The present invention relates to a printing method of a built-in CAD printing electronic system. Even if a separate CAD software is not used, the same or similar function as the CAD can be implemented by the printing pattern management unit, and the printing resolution can be arbitrarily adjusted.

Description

[0001] PRINTING METHOD OF BUILT-IN CAD PRINTING ELECTRONIC SYSTEM [0002]

The present invention relates to a printing method of a printing electronic system having a CAD function, and more particularly, to a printing method of a built-in CAD printing electronic system capable of printing in a vector form or converting into a raster without using separate CAD software, ≪ / RTI >

With the development of inkjet (Inkjet) technology, application range from office to electronic parts and display manufacturing has been expanded. Unlike office inkjet machines, it is necessary to precisely control the size of an ink drop and to precisely eject ink droplets at a desired position with accuracy within a few micrometers . Unlike conventional semiconductor processes, such an inkjet technology can be processed without wasting expensive materials and is easy to be enlarged. Therefore, in particular, researches for applying inkjet to a mass production process in the field of printing electronics are actively conducted.

In addition, as the application range of the inkjet technology becomes wider as the display is manufactured, there is an increasing need to pattern and discharge an accurate amount of ink at an accurate position. Therefore, it is necessary to use a file such as CAD to print a pattern with an accurate dimension.

The printing method using CAD includes a raster printing method of converting a CAD drawing into a bitmap image and printing, and a raster printing method of converting a CAD drawing into a bitmap image (bitmap image) and a stage (a dxf file, a Drawing Exchange file Format file) stage printing is carried out. A Dxf file is an ASCII file. It is a file format widely used for exchanging drawings between various CADs. It is a file having all drawing information such as dimensions and line types of drawings.

On the other hand, raster printing is more suitable for a head having a multi-nozzle, which is suitable for printing a more complex image in such a manner that the ejection head only prints in the main direction and moves only in the sub direction.

Contrary to raster printing method, vector printing method is suitable for printing when two axes move simultaneously and the number of nozzles is small. It is also an effective and superior method for printing relatively simple images such as oblique lines, circles, arcs or shapes rather than complex images.

Meanwhile, the present applicant has disclosed a vector printing method of an electronic printing system using a CAD drawing in Korean Patent No. 10-1078663.

However, since the printing method using the CAD drawing uses a separate CAD software (or program), it is costly and does not have all the functions necessary for the printing electronics. Also, most users who use printing may not be familiar with commercialization CAD.

Therefore, there is a need for a built-in CAD printing system that incorporates the function of CAD optimized for inkjet printing in software of the inkjet printing system and is easy to use.

An embodiment of the present invention provides a printing method of a built-in CAD printing electronic system that can easily incorporate and use CAD drawings in inkjet printing without using separate CAD software.

In one embodiment of the present invention, the length information of a pixel is defined and used from information of a vector of a CAD to express it in a picture or an image, and converted into a binary image to define a position to be ejected and a position to be ejected, A method of printing a built-in CAD printing electronic system is provided.

According to an aspect of the present invention, there is provided an ink jet recording head comprising: a discharge head having at least one nozzle through which ink droplets are discharged; a head driving unit for moving the discharge head; An image capturing unit provided at one side of the ejection head and moved in the same direction together with the ejection head for capturing an image of the object, a head driving unit for moving the head driving unit or the pitot A printing method for a printing electronic system having a CAD function including a control unit for controlling driving and a printing pattern management unit for managing a pattern to be printed on the object, the printing pattern management unit comprising: Obtaining; Defining a length of a pixel forming the CAD drawing or vector image in the printing pattern management unit; Expressing a CAD drawing or vector image in a Paintbrush or an image viewer using the length information of the pixel; Determining whether the CAD drawing or the vector image is modified; Modifying vector information of the CAD drawing or vector image; Applying image processing to the modified CAD drawing or vector image; And printing the image using the binary image obtained by the image processing. BRIEF DESCRIPTION OF THE DRAWINGS FIG.

According to the above configuration, the same or similar function as the CAD can be implemented by the printing pattern management unit even if no separate CAD software is used.

The step of acquiring the information of the CAD drawing or the vector image may invoke the CAD drawing created by the separate CAD software.

The step of rendering in the Paintbrush or Image Viewer may convert the CAD drawing or vector image into a bitmap image using the length of the pixel.

The step of modifying the vector information may modify the coordinates of the CAD drawing or vector image.

The obtaining of the information may acquire coordinate information of the bitmap image drawn directly from the Paintbrush or the image viewer through the printing pattern management unit.

The step of rendering the image in the Paintbrush or the image viewer may include obtaining coordinate values of a specific portion of the pattern from positions of pixels constituting the image when converting the CAD drawing or vector image into a bitmap image, The coordinate origin can be moved.

The step of defining the length of the pixel may define the interval of the ejection ink droplet as the length of the pixel.

The printing may be performed by matching the origin of the CAD drawing or the vector image and the origin of the converted image to the position of the image photographing unit using the position difference information between the image photographing unit and the nozzle.

The step of expressing in the Paintbrush or the image viewer may express the length information expressed in the CAD drawing or the vector image as the number of pixels.

As described above, the printing method of the built-in CAD printing electronic system according to an embodiment of the present invention can convert and save CAD drawings or vector images into bitmap images without using separate CAD software.

The printing method of the built-in CAD printing electronic system according to an embodiment of the present invention is easy to use because the CAD function necessary for inkjet printing is optimized.

The printing method of the built-in CAD printing electronic system according to an embodiment of the present invention uses the length definition information of the pixels, so that the resolution can be arbitrarily set or adjusted.

The printing method of the built-in CAD printing electronic system according to the embodiment of the present invention can solve the inconvenience of calling CAD drawing or vector image and using separate CAD software again to check and correct the vector image .

1 is a view schematically showing a configuration of a printed electronic system having a CAD function according to an embodiment of the present invention.
Fig. 2 is a perspective view showing an ink droplet ejecting apparatus of the system according to Fig. 1;
Figure 3 is a plan view schematically showing the device according to Figure 2;
Figs. 4 to 7 are diagrams showing exemplary programmed screens used in the system according to Fig. 1. Fig.
8 is a diagram for explaining conversion of the distance information in the CAD drawing into the number of pixels in the system according to FIG.
FIG. 9 is a diagram for explaining that the origin is shifted when converting into a bitmap image in the system according to FIG. 1. FIG.
FIG. 10 is a diagram for explaining the designation of an image range when converting from a system according to FIG. 1 to a bitmap image. FIG.
11-13 are flow charts illustrating the steps of printing using the system according to FIG.

Hereinafter, embodiments according to the present invention will be described in detail with reference to the accompanying drawings. However, the present invention is not limited to or limited by the embodiments. Like reference symbols in the drawings denote like elements.

FIG. 1 is a schematic view showing a configuration of a printing electronic system having a CAD function according to an embodiment of the present invention. FIG. 2 is a perspective view showing an ink droplet ejecting apparatus of the system according to FIG. 2 is a plan view schematically showing an apparatus according to a first embodiment of the present invention, Figs. 4 to 7 are views showing a programmed screen used in the system according to Fig. 1, and Fig. FIG. 9 is a diagram for explaining that an origin is shifted when converting from a system according to FIG. 1 to a bitmap image, FIG. 10 is a diagram for explaining the conversion of a bitmap Figs. 11 to 13 are flowcharts illustrating steps of printing using the system according to Fig. 1. Fig.

A printing electronic system having a CAD function according to an embodiment of the present invention will be described in detail with reference to the accompanying drawings, in which a built-in CAD ) Printing electronic system.

Referring to FIG. 1, a printing electronic system 100 having a CAD function according to an embodiment of the present invention includes a discharge head 110 having at least one nozzle through which ink droplets are discharged, a discharge head 110 A plurality of nozzles for discharging ink droplets discharged from the nozzles, a head driving unit 120 for moving the nozzles 130 to move ink droplets ejected from the nozzles, A control unit 170 for controlling the driving of the head driving unit 120 or the toothed part driving unit 140 and an image pickup unit 150 for moving an image of the to-be- And a printing pattern management unit 200 for managing a pattern to be printed on the printing unit 130.

Here, the printing pattern management unit 200 may manage the printing pattern with a CAD drawing, a vector image, or a bitmap image. That is, the printing pattern management unit 200 invokes the CAD drawing in cooperation with the head driving unit 120, the object driving unit 140, or the control unit 170, converts the CAD drawing into a bitmap image or corrects the coordinate information, Can be performed.

According to the above configuration, the same or similar function as the CAD can be implemented by the printing pattern management unit even if no separate CAD software is used.

2 and 3, the ink droplet ejecting apparatus 101 is shown. The ink droplet ejecting apparatus 101 includes a ejection head 110 having a plurality of nozzles N through which ink droplets are ejected, a head driving unit 120 for moving the ejection head 110, (Not shown) for moving the object 130 on which the ink droplets ejected from the ejection head N are stacked or printed (printed), a liquid ejection head 140 provided at one side of the ejection head 110 for moving the ejection head 110 in the same direction An image capturing unit 150 for capturing an image of the object 130 to be moved and an error range setting unit 160 for setting an ejection determining error range EB based on any one of the nozzles N And a controller 170 for controlling whether the nozzles N are discharged or not.

The ink droplet ejection system 100 may include two moving parts that move in directions intersecting with each other. That is, the discharge head 110 moving in the X-axis direction and the object 130 moving in the Y-axis direction intersecting or orthogonal to the discharge head 110 may be provided.

The object 140 moving in a direction intersecting or orthogonal to the direction of movement of the ejection head 110 may be driven by the object driving unit 140. As the object 130, a substrate or the like on which a discharge pattern is to be formed may be provided.

A single nozzle head or multiple nozzle heads can be used as the discharge head 110 for discharging ink such as ink. A plurality of nozzles N are formed on a lower surface of the discharge head 110, and the nozzles N may be arranged in a row. The ejection head 110 may be connected to the ink reservoir 192 to supply the ink ejected through the nozzles N. [

On one side of the discharge head 110, an image pickup unit 150 for pattern inspection for photographing a state in which ink droplets discharged while moving along the X-axis direction together with the discharge head 110 are printed on the object 130, Can be formed. The image capturing unit 150 can be used not only to observe the printing state of ink droplets printed on the object 130 using the camera but also to confirm the position of the object 130 and the like. For this purpose, it is desirable that the image capturing unit 150 knows the position information accurately with respect to the position of each nozzle N. [ In addition, an ink drop photographing unit 180 (Drop Watcher) may be provided on one side of the object.

The printing electronic system 100 having a CAD function according to an exemplary embodiment of the present invention may include a printing pattern management unit 200 that operates in conjunction with the control unit 170 of the ink droplet ejection apparatus 101. The printing pattern management unit 200 may include a computer, a display, and the like.

The printing pattern management unit 200 can output the CAD drawing or vector image drawn on the screen or output the graphic on the screen by using another CAD software. In addition, the printing pattern management unit 200 can directly draw the pattern or modify the pattern without using another CAD software.

The printing pattern management unit 200 is a configuration for generating or managing a pattern actually printed on the object 130 as a vector image or a bitmap image. The printing pattern management unit 200 can generate a printing pattern in approximately two ways. One is to draw a green CAD drawing or vector image using a separate CAD program (or CAD software), and the other is to draw a pattern in the form of a direct vector image or a bitmap image.

4 shows a programmed screen used in the system, more specifically, a programmed screen used in the printing pattern management unit 200 (i.e., a screen of the display unit). A printing image window 201 is displayed on the left upper side of the screen of FIG. 4 (a) to show actual printing on the object 130, and a printing mode display unit 202 is provided. The printing mode display unit 202 can separately display vector printing and raster printing.

4 (b) is a screen for drawing a pattern to be printed on the object 130 or a drawn pattern. A pattern image window 204 is located at the upper left of Fig. 4 (b). In the pattern image window 204, a pattern image drawn by a CAD program, a pattern image drawn by a paint board or an image viewer is shown. An image information display window 205 may be provided on the right side of the pattern image window 204. The image information display window 205 displays image information of a pattern displayed on the pattern image window 204, that is, coordinate information, and the like.

In addition, a pattern drawing function button 206 may be provided under the pattern image window 204. The pattern drawing function button 206 may be displayed as a function of a line, a point, an arc, a rectangle, a block, an array, and the like. This function is a function used in the CAD software and shows that the printing pattern management unit 200 can implement the CAD function. That is, the printing pattern management unit 200 implements a built-in CAD.

On the right side of the pattern drawing function button 206, a coordinate display unit 207 may be provided to show the X and Y coordinates of the end points of an image (for example, a straight line) to be drawn.

FIG. 5 shows the programmed screen of the printing pattern management unit 200 in more detail. In the pattern image window 204 shown in Fig. 5 (a), a pattern in which two triangles are drawn symmetrically with each other is displayed. This pattern is a pattern to be printed on the object 130. The pattern is displayed on the screen using the printing pattern management unit 200 after being drawn using CAD software or may be displayed on the screen directly by the printing pattern management unit 200 will be. The pattern displayed in the pattern image window 204 is composed of six straight lines, and coordinate information for each straight line is displayed in the image information display window 205. [ For example, coordinate information of a straight line indicated by a red dotted line in the pattern image window 204 is indicated by a red dotted line in the image information display window 205. [

Since the pattern displayed in the pattern image window 204 is represented by coordinate information, this can be referred to as a vector image. A mode display window 210 is located at the upper right of the screen, and a vector is displayed in the mode display window 210. [

Meanwhile, a layer display unit 211 may be provided above the image information display window 205. When the pattern image is generated by the CAD software, there may be layer information. The layer information may be displayed on the layer display unit 211 and the image information may be displayed or modified for each layer. By providing the layer display unit 211, it is possible to define each layer for multi-layer printing and display the selected layer on an image and print the layer.

An image conversion button 209 for converting a vector image into a raster image is provided below the image information display window 205. A function button 208 may be provided next to the image conversion button 209. [ The function button 208 may include buttons such as Undo, Delete, and Clear. It is preferable that the function button 208 also includes a function necessary for the printing electronics among functions of the CAD software.

FIG. 5B is a screen showing that the image can be modified in the pattern image window 204 or the image information display window 205. FIG. A pattern image window 204 shown in Fig. 5 (b) shows a pattern in which a straight line surrounded by a red dotted line is deleted from the pattern image window 204 shown in Fig. 5 (a) It can be seen that coordinate information of a straight line surrounded by a red dotted line is deleted.

In FIG. 6 (a), a circle and a rectangular pattern image are drawn in the pattern image window 204. FIG. Coordinate information and the like for this image are shown in the image information display window 205. Fig. 6 (b) shows a case where a pattern image shown in FIG. 6 (a) is duplicated by the same pattern image using a functional function, that is, an array function. As described above, the printing pattern management unit 200 according to the present invention is configured to perform a function similar to CAD.

The printing electronic system 100 according to the present invention may directly modify the printing pattern or modify the coordinate information of the pattern using the printing pattern management unit 200. [ That is, the pattern image displayed on the pattern image window 204 may be modified using a computer mouse or the like, and the coordinates of the image may directly be modified in the image information display window 205. [

On the other hand, the printing pattern management unit 200 can convert the CAD drawing or the vector image into the bitmap image using the separate CAD software. That is, a CAD drawing drawn using external CAD software or a vector image can be converted into a bitmap image. When a pattern is printed on the object 130 using a multi-nozzle rather than a single nozzle, Should be displayed in the pattern image window (204). This image conversion can be performed by clicking the image conversion button 209. [

FIG. 7 shows a screen showing a process of converting a vector image into a bitmap image (or a raster image). A vector mode 210 is displayed on the upper right side of the screen shown in Fig. 7 (a), and a raster mode 214 is displayed on the upper right side of the screen shown in Fig. 7 (b). It is possible to convert the vector image of Fig. 7 (a) into a raster image (or bitmap image) as shown in Fig. 7 (b). FIG. 7A also shows a screen 212 in which data drawn (generated) in a vector mode to a typing mode is converted into a bitmap and stored and loaded. A window 213 showing a storage path of the loaded data is displayed on the screen of FIG. 7 (b), and a display window 215 showing a pattern converted into a raster image is provided.

As shown in Fig. 7, the image indicated by the position information in the image can be converted into a raster image. Since the entire Paint can be defined as the size of the substrate (Entrapment 130), converting all of the images in full may cause problems in memory (in downloading data) and image processing for printing at the time of printing, In the image conversion, only the place where the drawing is located is converted and used as the printing image through the image processing. In the display window 215 of Fig. 7 (b), only the place where the figure exists is converted and displayed.

In FIG. 7 (b), the pattern image displayed on the display window 215 is shifted from the pattern image displayed on the pattern image window 204, and the reference point of the coordinates is shifted.

If you draw a picture using an image to represent the vector as a picture, it has the bitmap information, so you can convert the vector information to raster without any CAD software.

On the other hand, when printing a pattern using multiple nozzles provided in the discharge head 110, the printing pattern management unit 200 converts a CAD drawing or vector image into a bitmap image, or directly generates a bitmap pattern . That is, the printing pattern management unit 200 may directly draw a pattern to be printed using a mouse or the like in the pattern image window 204. [

Here, since the bitmap image itself has only information on whether or not to eject, there is no information on the length, so it is necessary to print the image by defining the length of one pixel. For this, the printing pattern management unit 200 defines a length corresponding to one pixel when converting a vector image into a bitmap image, and can adjust the resolution of the image. By adjusting parameters directly related to such printing, precise printing becomes possible.

The printing pattern management unit 200 defines the interval between one ink drop to be ejected as one pixel. By defining the length of one pixel, the vector information of the CAD drawing can be obtained, and the pattern image can be expressed in the pattern image window 204 by using the length information of one pixel.

When converting CAD information to a bitmap image in a separate CAD software, the unit of pixel / length (mm) is used. In this case, when the unit is not an integer, it is difficult to express a precise dimension or length there is a problem. For example, when the length definition is 10 pixels / mm, 0.13mm can not be expressed. Therefore, there is a problem that printing can not be performed with a desired precision by an existing method. Due to such a problem, the resolution can not be arbitrarily adjusted when the length is defined. In order to avoid such a problem, in the present invention, the length of the printing pattern management unit 200 is defined as length (mm) / pixel (pixel) or length (μm) / pixel. Therefore, it is possible to arbitrarily adjust the resolution, thereby enabling precise printing.

Referring to FIG. 8, it can be seen that the resolution according to the length definition can be changed. 8 (a) and 8 (b) show that, when a length of 100 μm / pixel is defined, a rectangular image having a length of 2 mm and a length of 1 mm is converted into an image having a width of 20 pixels and a length of 10 pixels, respectively give. Figs. 8 (a) and 8 (c) show that when a length is defined by 10 mu m / pixel, a rectangular image having a length of 2 mm and a length of 1 mm is converted into an image of 200 pixels and 100 pixels, Show. As described above, the printing electronic system 100 according to the present invention defines the length required for image conversion by the printing pattern management unit 200 as a length / pixel or a drop interval / pixel, so that the resolution can be arbitrarily set Precise printing can be done. The printing pattern management unit 200 can generate accurate data for printing because the drop interval for printing is defined as x um / pixel and the number of pixels is calculated to generate an image, The distance is changed to the corresponding number of image pixels.

The printing pattern management unit 200 can draw the drawing of the direct CAD, but the length corresponding to 1 pixel is defined by using the drop interval inputted in advance, and the drawing of the CAD is expressed as a pixel drawing (vector form) on the picture board or image . Since this is a bitmap image, it can be directly used for printing by using absolute value positioning and length information of one pixel.

On the other hand, the printing pattern management unit 200 can obtain the coordinate value of a specific portion of the pattern from the position of a pixel constituting the image, and move the coordinate origin when there is negative coordinate in the coordinate value. In FIG. 9 (a), a large rectangle represents an area displayed in a dxf file of an actual CAD file or CAD. In the dxf file, the x and y coordinate values of the origin of coordinates are -10 and -10, respectively. Small rectangles represent the range in which they are actually printed, with the origin being 0, 0 respectively. If the coordinates of a real CAD dxf file have negative values, negative coordinates of a dxf file should be shifted to positive coordinates because bitmap images can not represent negative coordinates. Fig. 9 (b) shows a case where the coordinate system is shifted (shifted) such that negative coordinate values are not represented. As described above, the printing pattern management unit 200 according to the present invention includes an algorithm for shifting coordinates. That is, the printing pattern management unit 200 performs printing by compensating the stage position for a position shifted to a negative value when printing based on the actual origin. Therefore, it is possible to use a bitmap image having information on absolute origin and coordinates for printing.

On the other hand, Fig. 10 (a) shows a case where the actual image size is smaller than the background size. In such a case, there is a problem that memory becomes unnecessarily large. FIG. 10B shows a case where the actual image size is larger than the background size. In this case, the background image is small and the actual image can not be received. In order to prevent such a problem, the printing pattern managing unit 200 according to the present invention can adjust or set a back ground image according to the actual image size, as shown in FIG. 10 (c).

The printing pattern management unit 200 of the printing electronic system 100 according to the present invention obtains the vector information of the CAD drawing and expresses the vector information of the CAD drawing in the Paintboard or the image viewer by using the length information of the pixel and converts the expressed image into a binary image (That is, by performing image processing), the raster printing can be performed by defining the ejection position and the non-ejection position.

In addition, the printing pattern management unit 200 can draw an image with an image overlay function with coordinates shifted to a zero point, draw an image on a background image using an overlay merge function on an existing green image, Save as BMP file.

In addition, the printing pattern management unit 200 of the printing electronic system 100 according to the present invention can define the position at the time of printing by using the image photographing unit 150 to define the origin of the absolute position. The origin of the CAD position and the origin of the image are matched with the position of the image capturing unit 150 using the information of the position of the image capturing unit 150 and the position of the nozzle to be used for ejection.

The printing pattern management unit 200 uses the maximum position (Xm, Ym) of coordinates when drawing a CAD drawing for effective memory management and defines a picture or image of mxn pixels by defining 1 pixel as d mm (or μm) do. Where m = round (Xm * d), and n = round (Ym * d). round is a rounding integer.

In order to display CAD information on an image or a Paintboard, if the position is X, Y and the drop interval is d mm / drop, the corresponding position is round (X / d), round (Y / d). This method has advantages over the conventional method because it includes not only the information of the CAD but also the ejection information for printing.

The printing electronic system 100 according to the present invention uses the information of the CAD to draw a picture such as a line, a circle, an arc and the like using an overlay or a pixel drawing on an image viewer or a paint board You can show the color by distinguishing it from the background. When using the coloring function, it is possible to freely define the thickness of the pattern when printing by specifying the thickness information.

For raster printing, you can convert the information drawn by using pixel drawing function on CAD image or Paint to binary image to get the image to print and the binary bitmap image to not print. The advantage is that it can easily solve the error or complexity of converting from an existing CAD to an image.

Hereinafter, a printing method of a built-in CAD printing electronic system according to the present invention will be described with reference to the drawings.

11, an embodiment of the present invention includes a discharge head 110 having at least one nozzle through which ink droplets are discharged, a head driving unit 120 for moving the discharge head 110, A plurality of nozzles for discharging ink droplets discharged from the nozzles and a plurality of nozzles for discharging droplets of the ink droplets discharged from the nozzles, A control unit 170 for controlling the driving of the head driving unit 120 or the pit driving unit 140 and a printing pattern management unit 170 for controlling a pattern to be printed on the object 130. [ (610) for acquiring information of a CAD drawing or a vector image in a printing pattern management unit (200), a printing pattern management unit (620) defining a length of a pixel forming the CAD drawing or the vector image in the rendering unit (200), expressing (630) the CAD drawing or the vector image in the drawing board or the image viewer using the length information of the pixel (640) determining whether to modify the CAD drawing or vector image, modifying (650) the vector information of the CAD drawing or vector image, applying image processing to the modified CAD drawing or vector image (660 And printing (670) printing using the binary image obtained by the image processing. The method of printing a printed electronic system having a CAD function is also provided.

According to the above configuration, the same or similar function as the CAD can be implemented by the printing pattern management unit even if no separate CAD software is used.

The step 610 of acquiring the information of the CAD drawing or the vector image is a process of loading the CAD drawing created by the separate CAD software in the printing pattern managing unit 200. Through this process, the coordinate information of the pattern image included in the CAD drawing can be obtained. Also, the bitmap image created by the printing pattern management unit 200 can be directly called and managed.

The step of rendering 630 to the Paintbrush or image viewer may convert the CAD drawing or vector image into a bitmap image using the length of the pixel. The length of the pixel is defined by the printing pattern management unit 200 as length / pixel. Because the length is defined in this form, the resolution can be easily adjusted.

Defining the length of the pixel (620) may define the spacing of ejected ink droplets as the length of the pixel. Since the printing pattern management unit 200 defines the length in terms of length (mm) / pixel (pixel) or length (μm) / pixel, the resolution can be arbitrarily adjusted.

Modifying (650) the vector information may modify the coordinates of the CAD drawing or vector image. That is, the pattern image created using the CAD software can be directly modified, or the pattern image can be modified by modifying the CAD coordinate information.

In addition, the step of acquiring the information (610) may acquire coordinate information of the bitmap image drawn directly from the Paintbrush or the image viewer through the printing pattern management unit (200). That is, the pattern image can be managed by using the information of the bitmap image directly created by the printing pattern management unit 200 using the Paintbrush, without calling up the CAD drawing.

The step 630 of expressing in the Paintbrush or the image viewer is a step of obtaining the coordinate value of a specific part of the pattern from the position of a pixel constituting the image when converting the CAD drawing or vector image into a bitmap image, If there is a coordinate, the coordinate origin can be moved. That is, since the bitmap image can not express coordinates having a negative value, the printing pattern management unit 200 can shift the coordinate system to solve this problem.

The printing step 670 may print the CAD drawing or the origin of the vector image and the origin of the converted image at the position of the image capturing unit using the position difference information between the image capturing unit and the nozzle.

The step 630 of expressing in the Paintbrush or the image viewer can express the length information expressed in the CAD drawing or the vector image as the number of pixels.

FIG. 11 is a flowchart of a method in which the printing pattern management unit 200 loads a drawing created by another CAD software and uses it for printing. 12 is a flowchart illustrating a method of directly creating a bitmap image by the printing pattern management unit 200 and printing using the image.

Referring to FIG. 12, a printing method of a printing electronic system 100 having a CAD function according to the present invention includes a step 710 of obtaining a bitmap image, a step 720 of displaying an image in a Paintbrush or an image viewer, Step 730 of determining whether to modify the represented image, step 740 of modifying the vector information of the image, applying image processing 750, and printing 760. This process is a process of directly printing a pattern image to be printed by the printing pattern management unit 200 and managing the pattern image as a bitmap image and using the pattern image for printing.

The step 710 of obtaining the bitmap image can directly draw the printing pattern using the screen shown in FIG. 4 to FIG. 6 in the printing pattern management unit 200. The pattern image drawn in this manner can be expressed by the operator through the Paint or Image Viewer.

The process of determining whether the image is modified (730) is similar to the process shown in FIG.

13 shows a process of converting a vector image into a bitmap image. First, after the step 810 of loading the CAD drawing is performed, a step 820 of converting the vector image represented in the CAD drawing into the bitmap image is performed and finally the printing is performed (830). Here, the step of loading a CAD drawing is a process of loading a CAD drawing created by another CAD software.

Step 620 of defining the length of the pixel of FIG. 11 should be performed before performing step 820 of converting the vector image to a bitmap image. The process shown in FIG. 13 may be performed between steps 620 and 630 in FIG.

The built-in CAD printing electronic system having a CAD function according to an embodiment of the present invention described above and its printing method can be applied to various printing technologies such as an inkjet, a dispensing system, and an electrohydraulic printing system.

As described above, the present invention has been described with reference to particular embodiments, such as specific elements, and specific embodiments and drawings. However, it should be understood that the present invention is not limited to the above- And various modifications and changes may be made thereto by those skilled in the art to which the present invention pertains. Accordingly, the spirit of the present invention should not be construed as being limited to the embodiments described, and all of the equivalents or equivalents of the claims, as well as the following claims, belong to the scope of the present invention .

100: Printing Electronic System
101: ink drop ejecting device
110: Discharge head
120:
130: Excretion
140:
170:
200: Printing pattern management unit

Claims (9)

A head driving unit for moving the discharging head, a discharging unit for discharging ink discharged from the discharging nozzle, the discharging head having at least one nozzle for discharging ink droplets, a head driving unit for moving the discharging head, An image capturing unit provided at one side of the ejection head and moving in the same direction together with the ejection head for capturing an image of the object, a controller for controlling driving of the head driving unit or the object ejection driving unit, A printing method for a printing electronic system having a CAD function including a printing pattern management unit for managing a printing function,
Acquiring information of a CAD drawing or a vector image in the printing pattern management unit;
Defining a length of a pixel forming the CAD drawing or vector image in the printing pattern management unit;
Expressing a CAD drawing or vector image in a Paintbrush or an image viewer using the length information of the pixel;
Determining whether the CAD drawing or the vector image is modified;
Modifying vector information of the CAD drawing or vector image;
Applying image processing to the modified CAD drawing or vector image; And
Printing using the binary image obtained by the image processing,
Wherein the step of converting the CAD drawing or the vector image into a bitmap image using the length of the pixel is performed to convert the CAD drawing or the vector image into a bitmap image through the image processing,
Wherein the step of modifying the vector information modifies the coordinates of the CAD drawing or vector image.
The method according to claim 1,
Wherein the step of acquiring the information of the CAD drawing or the vector image invokes the CAD drawing created by the separate CAD software.
delete delete The method according to claim 1,
Wherein the step of acquiring the information acquires the coordinate information of the bitmap image drawn directly from the Paintbrush or the image viewer through the printing pattern management unit.
The method according to claim 1,
The step of rendering the image in the Paintbrush or the image viewer may include obtaining coordinate values of a specific portion of the pattern from positions of pixels constituting the image when converting the CAD drawing or vector image into a bitmap image, And the coordinate origin is moved in the case of the built-in CAD printing system.
The method according to claim 6,
Wherein defining the length of the pixel defines the spacing of the ejected ink droplets as the length of the pixel.
8. The method of claim 7,
Wherein the printing is performed by matching the origin of the CAD drawing or the vector image and the origin of the converted image at the position of the image photographing unit using the position difference information between the image photographing unit and the nozzle, A method of printing a printed electronic system.
The method according to any one of claims 1, 2, and 5 to 8,
Wherein the step of expressing in the Paintbrush or the image viewer is performed by calculating the length information expressed in the CAD drawing or the vector image as the number of pixels.

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