KR101221095B1 - Cutting method of thin film for display panel - Google Patents

Abstract

The present invention relates to a cutting method of a thin film for display panel. The present invention, the loading step of loading a thin film formed with a plurality of linear pattern lines on the stage; A pattern trace setting step of setting a virtual straight line pattern trace corresponding to the pattern direction of the pattern line by measuring any one of the pattern lines formed on the thin film; A cutting path setting step of setting a cutting path for cutting the thin film into a quadrangle by moving the cutting head in the X- and Y-axis directions parallel or perpendicular to the pattern trajectory based on the pattern trajectory; A cutting head setting step of moving the cutting head to a starting point of the cutting path to set the cutting head at a point where cutting starts; And a film cutting step of cutting the thin film in a rectangular shape while moving the cutting head along the cutting path, and cutting the thin film having a corner with a straight first to fourth cutting plane to a predetermined size. . According to the present invention, four surfaces of the thin film may be cut in a state parallel to or perpendicular to the pattern line using the pattern line of the thin film.

Description

Cutting method of thin film for display panel {CUTTING METHOD OF THIN FILM FOR DISPLAY PANEL}

The present invention relates to a method for cutting a thin film for display panel, and relates to a method for cutting a thin film for display panel, which can accurately cut a thin film into a rectangular shape even when the thin film is loaded in an oblique form.

In general, a display panel including a liquid crystal, an LED, or a PDP module is attached with a thin film that displays an image by polarizing illumination light emitted from pixels of the panel. Such a thin film is cut and processed to have a size suitable for a screen on which an image is implemented, and is processed by a laser cutting device because it requires a precise cut surface when cut.

Such a laser cutting device includes a stage in which a thin film is located, a cutting head for irradiating a laser to the thin film while moving in the X and Y axes on the stage, and a laser generator for supplying a laser to the cutting head.

The laser cutting device as described above has a cutting head line partitioned into a size that corresponds to a screen size of a display panel to which a thin film is to be applied, in which the cutting head is closely spaced from the surface of the thin film film on the stage. Along the X-axis and Y-axis along the condensed laser is irradiated to the thin film. Therefore, the thin film is cut by the laser to be cut line to cut the thin film to the size required by the consumer.

Recently, display apparatuses for stereoscopic images have been developed. In such a display device, a thin film that provides a stereoscopic effect is attached to the display panel. Such a thin film has a plurality of fine pattern lines formed in a straight line to polarize the illumination light of the pixel to correspond to the pixel lines of the display panel to enable stereoscopic viewing. Therefore, such a display device provides a stereoscopic effect by the thin film as described above.

Here, as described above, in the thin film having a plurality of fine pattern lines, the cutting lines cut by the laser cutting device must be parallel to the pattern lines so that a correct stereoscopic feeling can be obtained when the stereoscopic image is realized in the stereoscopic image display.

However, in the general laser cutting device, when the thin film is loaded on the stage, the thin film is frequently loaded in diagonal lines instead of being positioned on the stage. For this reason, the general laser cutting device cuts the thin film so as not to be parallel with the pattern line of the thin film. Therefore, the cut thin film may not provide a three-dimensional effect because the straight pixels and the pattern line of the display panel are inconsistent. That is, a general laser cutting device has a problem of frequently mass producing a defective thin film that cannot provide a three-dimensional effect.

Therefore, in order to solve the problems as described above, it is urgent to develop a new laser cutting device capable of precisely cutting the thin film on which the pattern line is formed. In particular, the development of such a laser cutting device is urgently needed in order to preoccupy the market since the stereoscopic display device is emerging recently.

The present invention was created in order to solve the above-mentioned problems, and based on the measured data of the pattern line formed in a straight line on the thin film, the laser is moved in a rectangular shape and irradiated to the thin film to parallel the four sides of the thin film with the pattern line. The purpose of the present invention is to provide a cutting method of a thin film for display panel that can be cut at right angles.

In addition, as the measurement member for measuring the pattern line photographs the pattern line and provides the measured data, the cutting is performed using the measured data, and in addition, the cutting can be performed with illumination provided to the pattern line to be photographed. Another object is to provide a cutting method of a thin film for display panel.

In addition, to provide a cutting method of the thin film film for display panel that can set the cutting path of the thin film to be cut by the laser using a virtual pattern trace that matches the pattern direction of the pattern line based on the measured data of the pattern line. For another purpose.

In addition, a moving member for moving the laser irradiation apparatus along the cutting path in the X- and Y-axis directions of the thin film is provided, and in addition, the moving member for moving the above-described apparatus in the X-axis direction by magnetic force. Another object of the present invention is to provide a method for cutting a thin film for display panel using a device that moves, and further, a moving member for moving the above-described device in the Y-axis direction is configured by a screw-coupled structure.

The present invention for achieving the above object, the loading step of loading a thin film formed with a plurality of linear pattern lines on the stage; A pattern trace setting step of setting a virtual straight line pattern trace corresponding to the pattern direction of the pattern line by measuring any one of the pattern lines formed on the thin film; A cutting path setting step of setting a cutting path for cutting the thin film into a quadrangle by moving the cutting head in the X- and Y-axis directions parallel or perpendicular to the pattern trajectory based on the pattern trajectory; A cutting head setting step of moving the cutting head to a starting point of the cutting path to set the cutting head at a point where cutting starts; And a film cutting step of cutting the thin film in a rectangular shape while moving the cutting head along the cutting path, and cutting the thin film having a corner with a straight first to fourth cutting plane to a predetermined size. .

The pattern trace setting step may include, for example, a partial photographing step of photographing a corner portion of the thin film on which the pattern lines are formed; A reference pattern registration step of specifying and registering a reference pattern line which is measured and a reference among the pattern lines of the photographed portion; A line photographing step of photographing while following the reference pattern line; And calculating a virtual pattern trace by connecting the photographing positions of the reference pattern lines taken in real time while following the reference pattern line.

The line photographing step may include, for example, an overlapping photographing step of photographing a start section at which the reference pattern line starts at an overlapping state along the pattern line; And a spaced apart photographing step of photographing in a spaced apart state while following the pattern line from the end portion of the start section of the reference pattern line photographed in the overlapped state to the middle section of the pattern line.

The cutting path setting step may include, for example, a first cutting path setting step of setting a first cutting path that coincides with the pattern trajectory and coinciding with the first cutting plane by comparing with a cutting length of a preset Y axis; A second cutting path setting step of setting a second cutting path perpendicular to the end point of the first cutting path and comparing the second cutting path with the second cutting plane with a preset cutting length of the X axis; A third cutting path that is perpendicular to the end point of the second cutting path and is parallel with the first cutting path and the pattern trajectory and coincides with the third cutting plane to be set in comparison with the preset cutting length of the Y axis; 3 cutting path setting step; And a fourth cutting path configured to be perpendicular to the end point of the third cutting path, and to be set in parallel with the second cutting path while matching a fourth cutting path coinciding with the fourth cutting plane by comparing with a preset cutting length of the X-axis. Setting step; can be configured to include.

The cutting head setting step may include, for example, calculating a separation distance between the starting points of the cutting paths and the positions of the cutting heads to calculate a separation distance from each other; And a cutting head moving step of setting the cutting head at the starting point of the cutting path by moving the cutting head by the separation distance.

In the cutting of the film, for example, the first cutting surface is formed on one side edge of the thin film by moving the cutting head in the Y-axis direction along one side edge of the thin film from the starting point of the cutting path by the set cutting path. 1 cutting step; A second cutting step of moving the cutting head at right angles along the X axis of the thin film from the end point of the first cutting surface by the set cutting path, thereby forming the second cutting surface in a state perpendicular to the first cutting surface; The cutting head is moved at right angles along the Y axis of the thin film from the end point of the second cutting surface by the set cutting path, so that the third cutting surface facing the first cutting surface is orthogonal to the second cutting surface. A third cutting step; And moving the cutting head perpendicularly along the X axis of the thin film from the end point of the third cutting surface by the set cutting path, so that the fourth cutting surface facing the second cutting surface is orthogonal to the third cutting surface. It may be configured to include; a fourth cutting step to form.

The present invention as described above, even when the thin film is loaded obliquely on the stage to recognize the pattern direction of the pattern line formed on the thin film to cut the thin film while moving the cutting head in parallel or perpendicular to the pattern line The film can be cut to match the pattern line. Thus, the thin film thus cut may implement an image that provides a perfect three-dimensional effect because the pattern lines coincide with the pixel lines of the display panel.

1 is a perspective view of a cutting device used in the cutting method of the thin film for display panel according to an embodiment of the present invention;
Figure 2 is a perspective view showing the configuration of the horizontal moving portion and the cutting head shown in FIG.
3 is a plan view schematically showing the configuration of the horizontal moving unit and the cutting head shown in FIG.
4 is a plan view conceptually illustrating a moving line of the camera illustrated in FIG. 2;
Figure 5 is a block diagram showing a movement control unit of the cutting device applied to the present invention;
6 is a diagram illustrating a screen loaded with an initial image of the camera of FIG. 5;
FIG. 7 is a diagram illustrating a screen for registering a reference pattern line in the image of FIG. 6; FIG.
8 is a plan view schematically showing a thin film cut by an embodiment of the present invention; And
9 is a flowchart illustrating a cutting method of a thin film for display panel according to an embodiment of the present invention.

Hereinafter, exemplary embodiments of the present invention will be described in detail with reference to the accompanying drawings.

Referring to FIG. 1, the cutting device 100 used in the cutting method of the display panel thin film according to the embodiment of the present invention requires cutting inside the case 102 forming an outer shape as shown. A stage 104 on which the thin film 10 is loaded is installed, and a horizontal moving part 110 horizontally moved forward and backward or left and right on the stage 104 is installed around the stage 104.

In addition, the cutting device 100 is moved along with the horizontal moving unit 110, the measurement unit 120 for measuring the pattern direction of the pattern line 12 formed on the thin film 10, the horizontal moving unit 110 The cutting head 130 is installed in the horizontal moving unit 110 along with the actual measurement unit 120 to move by the horizontal moving unit 110 and to cut by irradiating a laser beam on the surface of the thin film 10. 110). In this case, the cutting head 130 is parallel to or perpendicular to the pattern line 12 of the measured thin film 10 as the horizontal moving unit 110 is moved by the movement control unit 140 to be described later. The four surfaces of the thin film film 10 are cut in the state.

On the other hand, the above-described horizontal moving unit 110 may be configured to include, for example, the X-axis moving unit (110a) and Y-axis moving unit (110b) as shown. The X-axis moving unit 110a is, for example, the gantry 112 and the linear rail 144a and the linear electric motor 114b on the stage 104 having the vertical beam 112a and the horizontal beam 112b as shown. It can be configured to include a gantry drive unit 114 having. In addition, the Y-axis moving unit 110b, for example, moves along the slot rail 118b of the gantry 112 and the rotary drive unit 116 composed of the drive motor 116b and the lead screw 116b as shown. Block 118 can be configured.

On the other hand, the above-described measurement unit 120 is, for example, as shown in the image pickup unit 122 and the moving block 118 installed in the moving block 122 to convert the image taken by the image signal to a data signal to be described later movement control unit 140 It can be configured to include a signal transmitter not shown in). The signal transmitter may be installed in the moving block 118 in which the camera 122 is installed. Alternatively, the signal transmitter may be provided in the same movement as the camera 122 or may be provided in the movement controller 140 to be described later.

As illustrated, the measurement unit 120 may further include an illuminator 124 that provides illumination to the pattern line 12 of the thin film 10 photographed by the imager 122. The illuminator 124 is installed on the moving block 118 as shown in the figure is preferably configured to provide illumination to the photographing part while moving with the camera 122 by the movement of the moving block 118.

However, the illuminator 124 may be installed inside the stage 104 to illuminate a portion photographed by the imager 122 from the rear surface of the thin film 10. At this time, the stage 104 should be made of a light transmitting material through which the illumination light of the illuminator 124 is transmitted.

Here, the above-described moving block 118 is provided with a cutting head 130 as shown. Thus, the moving block 118 moves the cutting head 130 along the slot rail 118b.

On the other hand, the above-described stage 104 is formed with a suction hole (not shown) for fixing the thin film 10 to the upper surface by the suction force by the vacuum pressure. In addition, the case 102 is provided with an unshown exhaust duct for discharging fumes generated during laser cutting of the thin film.

Referring to FIG. 2, the horizontal moving unit 110 reflects the laser of the laser generator 106 and the laser generator 106 to supply the laser to the cutting head 130 as shown in the drawing head 130. Adjacent to the reflector 108 providing.

 The X-axis moving unit 110a moves in the X-axis direction on the stage 104. At this time, the gantry 112 is moved along the linear rail 114a installed on the side of the thin film 10 by the electromagnetic force generated by the linear motor 114b of the gantry drive unit 114. Therefore, it moves in the X axis direction.

Here, the linear rail 114a described above is provided in the X-axis direction as shown. In addition, the linear electric motor 114b has a block shape that can be coupled to the linear rail 114a as shown, and is mounted on the linear rail 114a, and is installed on the vertical beam 112a of the gantry 112 to be gantry ( Support the lower part of 112).

The Y-axis moving unit 110b is embedded in the gantry 112 of the X-axis moving unit 110a as shown by the lead screw 116a having the drive motor 116b at its end. Therefore, the lead screw 116a is provided in the Y-axis direction. Then, the moving block 118 is engaged with the lead screw 116a through the slot rail 118b of the gantry 112 as shown. Therefore, the moving block 118 slides along the slot rail 118b during the rotation of the lead screw 116a and moves in the Y-axis direction. In this case, the moving block 118 moves the cutting head 130, the imager 122, and the illuminator 124 in the Y-axis direction.

Here, the above-described driving motor 116b may be connected in series to the lead screw 116a as shown, or may be connected in parallel through a gear not shown. In addition, the drive motor 116b may be a geared motor having a speed reducer.

On the other hand, the above-described Y-axis moving unit 110b may be composed of a linear rail 114a and a linear electric motor 114b, such as the above-described X-axis moving unit 110a. Since this configuration is easily understood by those skilled in the art, a detailed description thereof will be omitted.

On the other hand, the camera 122 photographs the pattern line formed in a straight line on the thin film 10 while moving in the Y-axis direction by the moving block 118 as shown. The cutting head 130 cuts the thin film 10 along a straight pattern direction that matches the pattern line by irradiating a laser while moving in the Y-axis direction by the moving block 118 as shown.

Referring to FIG. 3, since the gantry 112 moves in the X-axis direction and the moving block 118 moves in the Y-axis direction, the cutting head 130 and the camera 122 are installed at an oblique line in a thin film 10. May move along the pattern line 12. At this time, the gantry 112 and the moving block 118 are moved little by little in the X-axis and Y-axis directions while mutually correcting the movement distance of each other by the pattern line 12 forming an oblique line. Therefore, the cutting head 130 and the imager 122 move along the pattern line 12 forming diagonal lines.

Referring to FIG. 4, the imager 122 photographs the pattern line 12 while following the pattern line 12 forming an oblique line as shown. At this time, the imager 122 photographs the pattern line 12 while moving along any one of the plurality of pattern lines 12 to measure the specific pattern line 12. In particular, the camera 122 measures the edge side pattern line 12 of the thin film 10 among the plurality of pattern lines 12. In addition, the camera 122 converts the measured image, that is, the captured image, into a data signal through the above-described signal transmitter and transmits the data to the movement controller 140 to be described later.

On the other hand, the cutting head 130 moves with the camera 122 in a state spaced apart from the camera 122 as shown.

Referring to FIG. 5, the movement controller 140 virtually sets a pattern trace of a pattern line 12 forming a straight line based on measured data transmitted from a signal transmitter. Then, the movement controller 140 controls the movement of the horizontal movement unit 110 in the X-axis direction or the same Y-axis direction as the pattern trace perpendicular to the virtual pattern trajectory. That is, the movement control unit 140 moves the horizontal movement unit 110 in the X-axis direction or the Y-axis direction. The movement control unit 140 is, for example, as shown in the pattern direction analogy panel 141, the measured portion moving panel 142, the trajectory direction setting panel 143, the cutting path setting panel 144, the cutting head setting panel ( 145 and the operation control panel 146 can be configured.

The pattern direction inference plate 141 infers the pattern direction of the above-described pattern line 12 to form a straight line by analyzing the measurement data transmitted from the signal transmitter of the above-described measurement unit 120. In addition, the measurement unit moving plate 142 moves the above-described horizontal moving unit 110 along the pattern direction inferred by the pattern direction inference plate, and thus the imager 122 of the measurement unit 120 along the pattern line 12 described above. Move).

The trajectory direction setting panel 143 compares real-time measured data of the measured part 120 provided while moving along the above-described pattern line 12 by the moving of the measured part 120 and the straight line of the pattern line 12. Sets the virtual pattern trajectory that matches. In addition, the cutting path setting panel 144 moves the cutting head 130 in the X-axis and Y-axis directions parallel or perpendicular to the pattern trace based on the trajectory direction to turn the thin film 10 into a quadrangle. Set the cutting path for cutting.

The cutting head setting plate 145 moves and sets the cutting head 130 as the starting point of the cutting path. Then, the operation control panel 146 controls the operation of the above-described horizontal moving unit 110 in the X-axis and Y-axis along the cutting path to cut the thin film 10 in a square through the above-described cutting head 130. .

Referring to FIG. 6, the above-described measurement unit 120 converts an image captured by the above-described camera 122 into actual data and displays the same on a driver's monitor as shown. In this case, the monitor outputs measured data as an image as shown to display a plurality of pattern lines so that the reference pattern line SL, which is a reference for setting a virtual pattern trace, can be set.

Referring to FIG. 7, the reference pattern line SL may be selected by being set in a box shape as shown in the figure, and is loaded in the loading popup window PW after the selection. The reference pattern line SL is registered as a reference line when a grid designation line is displayed in the registration popup window PW 'through a cursor click.

Referring to FIG. 8, the thin film 10 is cut to have a first cut surface ① and a fourth cut surface ④ as shown. At this time, the first cutting surface (①) to the fourth cutting surface (④) is the same as the cutting sequence set by the above-described cutting path. That is, the thin film 10 is sequentially cut along the first cutting surface ① to the fourth cutting surface ④ to form a rectangle. Therefore, the thin film 10 has a first cutting surface ① and a third cutting surface ③ that are parallel to the pattern line 12 and face each other. The thin film 10 has a second cutting surface ② and a fourth cutting surface ④ which are perpendicular to the pattern line 12 and face each other.

 When the cutting method of the display panel thin film according to the embodiment of the present invention as described above will be described with reference to the accompanying drawings, the reference numerals of FIG. 9 attached in the description will be described in parentheses.

Referring to FIG. 3, the thin film 10 is loaded onto the stage 104 as shown in FIG. 9 (S210 of FIG. 9). The gantry 112 and the moving block 118 move in the X-axis and Y-axis directions. While moving along the pattern line 12 of the thin film 10. At this time, the camera 122 photographs the pattern line 12 while following the pattern line 12 where illumination of the illuminator 124 is provided.

Referring to FIG. 4, the photographing apparatus 122 photographs any one of the pattern lines 12 positioned at the edge of the thin film 10 among the plurality of pattern lines 12 formed in the thin film 10 as shown. Measurement is performed through the 122 to set a virtual pattern trace that matches the pattern direction of the pattern line 12 (S120 of FIG. 9). For this purpose, the photographing apparatus 122 firstly has a corner portion of the thin film 10. (S122 of FIG. 9). When the pattern line 12 is selected and registered as the reference pattern line 12 in the photographed portion, the photographing apparatus 122 selects the selected reference pattern line 12. Shoot while following. (S124 and S126 in Fig. 9)

When the camera 122 is photographed, the start section of the reference pattern line 12 begins to be taken in an overlapping state along the pattern line 12 as shown in the drawing, and then the start section of the reference pattern line 12 ends. Shooting in the spaced state from the portion to the intermediate section (S126a and S126b of FIG. 9). At this time, the camera 122 is preferably spaced apart while increasing the separation distance as shown.

On the other hand, the cutting head 130 is moved to the starting point of the cutting path corresponding to the position where the recording start of the camera 122 when the cutting path is set as described below after the shooting of the camera 122 is set to the cutting start position In this case, the cutting head 130 is spaced apart from the position where the photographing of the photographing apparatus 122 starts, as shown in FIG. 9.

Referring to FIG. 5, the movement controller 140 receives an image photographed in an overlapping state while the aforementioned camera 122 follows the reference pattern line 12 through the aforementioned signal transmitter. That is, the movement control unit 140 receives initial measurement data through the signal transmission unit. The movement controller 140 infers the pattern direction of the pattern line 12 which forms a straight line by connecting the superimposed photographing positions of the reference pattern lines 12 through the linear inference plate 141 based on the initial measured data. The above-described horizontal moving unit 110 is moved along the reference pattern line 12 through the measurement unit 142 to photograph the above-described camera 122 in a spaced state.

Then, the movement control unit 140 is provided with real-time actual data photographed in real time through the signal transmission unit. That is, the movement controller 140 is provided with real-time measured data photographed in a spaced state up to an intermediate section of the reference pattern line 12. At this time, the movement control unit 140 calculates the pattern direction to the middle section of the pattern line 12 by connecting the photographing positions spaced apart through the trajectory direction setting panel 143 based on real-time measured data, and then calculates the pattern direction. An imaginary straight line is extended in a straight pattern direction to set a virtual pattern trace that corresponds to the pattern direction of the pattern line 12 while corresponding to the length of the thin film film 10 described above (S128 in FIG. 9).

The movement control unit 140 forms a rectangular cutting path on the thin film 10 while being parallel to the pattern trajectory or perpendicular to the pattern trajectory through the cutting path setting panel 144. The first cutting path to the fourth cutting path are set (S130, S132 to S138 of FIG. 9). And, the movement controller 140 cuts the above-described cutting head 130 through the cutting head setting panel 145 in the first cutting path. Move to the starting point of the path (S140 in FIG. 9).

At this time, the movement control unit 140 compares the starting point of the first cutting path and the position of the cutting head 130 by the coordinates to calculate the separation distance between each other. (S142 of FIG. 9) The movement control unit 140 then cuts the cutting head. The cutting head 130 is set at the starting point of the first cutting path by moving the 130 as much as the calculated separation distance. (S146 of FIG. 9), and the movement controller 140 moves the operation control panel 146. By controlling the operation of the above-described horizontal moving unit 110 through the first cutting path to the fourth cutting path to sequentially move the horizontal moving unit 110. Therefore, the above-described cutting head 130 installed in the horizontal moving unit 110 while cutting the above-described thin film 10 in a square while moving in the X-axis or Y-axis direction along the first to fourth cutting paths. Cut to the set size. (S150, S152 ~ S158 of Fig. 9)

Referring to FIG. 8, the first cutting path and the virtual pattern trace are the same as the first cutting surface ① of the thin film 10 as shown. Therefore, the first cutting path is the same as the first cutting surface ① and is set in consideration of the cutting length of the preset Y axis corresponding to the cutting length of the first cutting surface ①. (S132 of FIG. 9)

The second cutting path is the same as the second cutting surface ② of the thin film 10. The second cutting path is perpendicular to the end of the first cutting path, that is, the end of the second cutting surface ②. Since the second cutting path is the same as the second cutting surface ②, the second cutting path is set in consideration of the cutting length of the preset X axis corresponding to the cutting length of the second cutting surface ② (S134 of FIG. 9).

The third cutting path is the same as the third cutting surface ③ of the thin film 10. The third cutting path forms a right angle at the end of the second cutting path, that is, the end of the third cutting surface ③. Therefore, the third cutting path is parallel to the first cutting path, the first cutting surface ①, and the pattern trace. Since the third cutting path is the same as the third cutting surface ③, the third cutting path is set in consideration of the cutting length of the preset Y axis corresponding to the cutting length of the third cutting surface ③ (S136 in FIG. 9).

The fourth cutting path is the same as the fourth cutting surface ④ of the thin film 10. The fourth cutting path forms a right angle at an end point of the third cutting path, that is, the third cutting surface ③. Therefore, the fourth cutting path is parallel to the second cutting path and the second cutting surface ②. Since the fourth cutting path is the same as the fourth cutting plane ④, the fourth cutting path is set in consideration of the cutting length of the preset X axis of the fourth cutting plane ④ (S138 in FIG. 9).

On the other hand, the thin film 10 is cut in the order of the first cutting surface (①) to the fourth cutting surface (④) because the aforementioned cutting head 130 is sequentially moved along the first to fourth cutting paths described above. (S152 to S158 of Fig. 9)

In the cutting method of the thin film film for display panel according to the present invention as described above, even if the thin film 10 is inclined to the stage 104 by recognizing the pattern direction of the pattern line 12 formed on the thin film 10 Since the thin film 10 is cut while moving the cutting head 130 in parallel or perpendicular to the pattern line 12, the thin film 10 may be cut to match the pattern line 12.

As such, the cut thin film 10 may implement an image that provides a perfect three-dimensional effect because the pattern lines 12 coincide with the pixel lines of the display panel.

On the other hand, terms or words used in the present specification and claims should not be construed as being limited to the common or dictionary meanings, and the inventors should appropriately define the concept of terms in order to explain their invention in the best way. It should be interpreted as meaning and concept corresponding to the technical idea of the present invention based on the principle that it can.

In addition, the present invention is not limited only to the above-described embodiments, but may be modified and modified within the scope not departing from the gist of the present invention, and such modifications and variations may be regarded as belonging to the technical idea of the present invention. do.

For example, the photographing unit 122 of the measurement unit 120 may photograph the pattern line 12 formed on the thin film 10 while driving the entire region of the thin film 10 loaded on the stage 104. In addition, repeated measurements may be obtained by overlapping only a preset section overlapping the thin film 10 and obtain measured data.

In some cases, a plurality of thin film films 10 are loaded onto the stage 104, and the pattern line 12 for each thin film film 10 has the imager 122 of the measurement unit 120. Photographing to obtain the measured data, and based on the measured data, the movement control unit calculates the movement trajectory of the cutting head 130 in parallel with the pattern lines 12 formed on the respective thin film films 10, and then the thin film 10 By cutting to the required size, the thin film may be cut more quickly.

10: thin film 12: pattern line
104: stage 110: horizontal moving unit
110a: X axis moving unit 110b: Y axis moving unit
112: gantry 112a: vertical beam
112b: horizontal beam 114: gantry drive unit
114a: Linear Rail 114b: Linear Motor
116: rotation drive 116a: lead screw
118: moving block 118a: slot rail
120: measured part 122: a photographing device
124 illuminator 130 cutting head

Claims (5)

Loading a thin film on which a plurality of linear pattern lines are formed on a stage;
A pattern trace setting step of setting a virtual straight line pattern trace corresponding to the pattern direction of the pattern line by measuring any one of the pattern lines formed on the thin film;
A cutting path setting step of setting a cutting path for cutting the thin film into a quadrangle by moving the cutting head in the X- and Y-axis directions parallel or perpendicular to the pattern trajectory based on the pattern trajectory;
A cutting head setting step of moving the cutting head to a starting point of the cutting path to set the cutting head at a point where cutting starts; And
The film cutting step of cutting the thin film in a rectangular shape while moving the cutting head along the cutting path, cutting the thin film made of the sides of the first to fourth cutting surface in a straight line to a predetermined size;
The cutting path setting step,
A first cutting path setting step of setting a first cutting path coinciding with the pattern trace and matching the first cutting plane by comparing with a preset cutting length of the Y axis;
A second cutting path setting step of setting a second cutting path perpendicular to the end point of the first cutting path and comparing the second cutting path with the second cutting plane with a preset cutting length of the X axis;
A third cutting path that is perpendicular to the end point of the second cutting path and is parallel with the first cutting path and the pattern trajectory and coincides with the third cutting plane to be set in comparison with the preset cutting length of the Y axis; 3 cutting path setting step; And
A fourth cutting path is set by comparing a fourth cutting path that is perpendicular to the end point of the third cutting path and is parallel to the second cutting path and coincides with the fourth cutting surface by comparing with a preset cutting length of the X axis. Cutting method of a thin film for display panel comprising a. The method of claim 1, wherein the pattern trace setting step comprises:
A partial photographing step of photographing a portion of a corner side of the thin film on which the pattern lines are formed;
A reference pattern registration step of specifying and registering a reference pattern line which is measured and a reference among the pattern lines of the photographed portion;
A line photographing step of photographing while following the reference pattern line; And
And a trajectory calculating step of calculating the virtual pattern trace by connecting the photographing positions of the reference pattern lines photographed in real time while following the reference pattern line. The method of claim 2, wherein the line photographing step,
An overlapping photographing step of photographing a start section at which the reference pattern line starts at an overlapping state along the pattern line; And
And a separation photographing step of photographing in a spaced apart state while following the pattern line from the end portion of the start section of the reference pattern line photographed in the overlapped state to the middle section of the pattern line. According to claim 1, wherein the cutting head setting step,
A separation distance calculating step of calculating a separation distance between each other by comparing a starting point of the cutting path and a position of the cutting head; And
And a cutting head moving step of setting the cutting head at a starting point of the cutting path by moving the cutting head by the separation distance. The method according to any one of claims 1 to 4,
The film cutting step,
A first cutting step of forming the first cutting surface on one side edge of the thin film by moving the cutting head along the one side edge of the thin film from the starting point of the cutting path by the set cutting path;
A second cutting step of moving the cutting head at right angles along the X axis of the thin film from the end point of the first cutting surface by the set cutting path, thereby forming the second cutting surface in a state perpendicular to the first cutting surface;
The cutting head is moved at right angles along the Y axis of the thin film from the end point of the second cutting surface by the set cutting path, so that the third cutting surface facing the first cutting surface is orthogonal to the second cutting surface. A third cutting step; And
The cutting head is moved at right angles along the X axis of the thin film from the end point of the third cutting surface by the set cutting path, so that the fourth cutting surface facing the second cutting surface is orthogonal to the third cutting surface. Cutting method of a thin film for display panel comprising a; 4 cutting step.

Images