JP2007178964A - Alignment adjusting method and device for support frame of sealant dispenser - Google Patents

Abstract

<P>PROBLEM TO BE SOLVED: To disclose a method for adjusting alignment of one support frame in a sealant dispenser. <P>SOLUTION: The method includes a step of identifying at least two correction marks provided on a glass substrate and moving an alignment sensor in a first direction. Here, the first direction is parallel to a long side of the support frame. The method further includes a step of judging whether an assumed straight line connecting at least the two correction marks identified by the alignment sensor is parallel to the first direction and a step of adjusting alignment of at least the one support frame so that the assumed straight line is parallel to the first direction. <P>COPYRIGHT: (C)2007,JPO&INPIT

Description

  The present invention relates to a sealant dispenser that dispenses a sealant onto a glass substrate in a specific pattern or shape when manufacturing a flat display device. More particularly, the present invention relates to a method and apparatus for adjusting the alignment of a support frame in a sealant dispenser that can perform precise dispensing operation.

  As one of many flat display devices, a liquid crystal display (LCD) has superior visual quality compared to a cathode ray tube (CRT). Furthermore, the average power consumption of the LCD is less than a CRT with the same screen dimensions as the LCD, and the amount of heat generated from the LCD is less than the CRT. For these reasons, LCDs, along with plasma display panels (PDP) or field emission displays (FED), are attracting attention as next-generation display devices for mobile phones, computer monitors, and televisions.

LCDs are manufactured by forming a plurality of pixel patterns or thin film transistors (TFTs) on a first glass substrate and forming a color filter layer on the second glass substrate on the opposite side of the first glass substrate. Liquid crystal is applied to one of the glass substrates, after which the first and second glass substrates are bonded.
During the manufacturing process of the LCD, the sealant dispenser dispenses the sealant onto the glass substrate in a specific pattern. Generally, when performing a dispensing operation, the sealant dispenser is a dispenser head that is used to dispense the sealant back and forth (ie, in the front-rear direction) or from side to side (ie, in the lateral direction) while the glass substrate is secured. Rearrange the position of.

  FIG. 1 is a perspective view showing a sealant dispenser to which an alignment adjusting method for a support frame of the sealant dispenser is applied. FIG. 2 is a plan view of a conventional sealant dispenser for explaining a problem relating to a sealant dispensing process. Hereinafter, the structure of the conventional sealant dispenser and the problems of the conventional sealant dispenser will be described with reference to FIGS.

  Referring to FIGS. 1 and 2, a sealant dispenser for manufacturing a liquid crystal panel having a large size has a frame 10 representing a main body of the dispenser, a table 20 provided on an upper surface of the frame 10, and a sealant 52 dispensed. A stage 24 attached to the table 20 so as to receive the glass substrate 50 and a first linear motor 22 that drives the stage 24 in the front-rear direction of the frame 10 or in a direction parallel to the S axis are provided.

  The sealant dispenser is further provided at both ends of the table 20, and moves along the linear motor guide 35 along the linear motor guide 35 extending along the front and rear of the frame 10, and the first support frame 31 and the second support frame 32. The first support frame 31 and the second support frame 32 that are provided between the linear motor guides 35 and are arranged perpendicularly to the long side of the frame 10, and the linear motor of the frame 10. At least one second linear motor 33 that drives the support frames 31 and 32 along the guide 35 is provided.

  Recently, the dimensions of the glass substrate 50 have been gradually increased. In order to cope with such an increase, at least two support frames, that is, the first support frame 31 and the second support frame 32 are provided so as to shorten the dispensing process time. Here, a second linear motor 33 is provided at each end of the first support frame 31 and the second support frame 32.

  A plurality of head units 41 are provided on one side of each of the first support frame 31 and the second support frame 32. These head units 41 are arranged in a first direction (a direction parallel to the Q axis, a direction parallel to the long sides of the support frames 31 and 32, or a linear motor so as to dispense the sealant 52 in a specific pattern or shape. In a direction perpendicular to the guide 35). The sealant 52 is dispensed on the glass substrate 50 fixed to the stage 24. In addition, a third linear motor 44 is provided so as to drive the head unit 41 in the first direction.

Specifically, each head unit 41 includes a head mount 42, and each head unit 41 has a first direction (parallel to the Q axis) when the driving force of the third linear motor 44 is transmitted to the head mount 42. Move in the right direction). Further, a syringe (not shown) is attached to the head mount 42 so as to contain the sealant 52.
In addition, the table 20 has a second direction (that is, a direction parallel to the S axis and a direction parallel to the linear motor guide 35) so that the glass substrate 50 to which the table 20 is fixed to the stage 24 is aligned. Or a direction perpendicular to the support frames 31 and 32).

Next, the operation of the sealant dispenser for the above configuration will be described in detail.
First, the glass substrate 50 is fixed to the upper part of the stage 24 by a suction function, and the stage 24 is fixed to the table 20. A glass substrate 50 having a rectangular shape and having a pattern such as a circuit pattern 53 formed thereon in advance is aligned with the frame 10 and fixed to the upper portion of the stage 24.

Next, a sealant dispensing operation occurs. In general, there are two ways in which the sealant is dispensed onto the glass substrate 50.
The first dispensing method is as follows. The first support frame 31 and the second support frame 32 move in the first direction (the direction parallel to the linear motor guide 35 of the frame 10), and the head unit 41 attached to each of the support frames 31 and 32 is the first one. The sealant is dispensed on the glass substrate 50 by moving in the direction 2 (direction perpendicular to the linear motor guide 35 of the frame 10).

  The second dispensing method is as follows. The table 20 moves in the first direction, and the head units attached to the support frames 31 and 32 move in the second direction to dispense sealant onto the glass substrate 50. That is, the sealant is dispensed on the glass substrate 50, and the table 20 and the head unit 41 move relative to each other. The second method is mainly used for a glass substrate 50 having a large size. More specifically, when the large-sized glass substrate 50 is guided into the sealant dispenser, the two support frames 31 and 32 move in the second direction (front and back along the linear motor guide 35), and the glass substrate 50 To secure the space necessary to guide or remove Thereafter, the glass substrate 50 is fixed to the stage 24.

However, the conventional sealant dispensing method has the following problems.
The first support frame 31 and / or the second support frame 32 provided between the linear motor guides 35 may not be parallel to the Q axis and / or not parallel to each other as a result of manufacturing errors. . In addition, the glass substrate may not be properly aligned when fixed to the stage. Thus, the first support frame and / or the second support frame may not be parallel to the Q axis and / or to each other.
If the displacement of the support frame is not corrected before the dispensing operation, the head unit that moves along the displaced support frame cannot accurately dispense the sealant according to a predetermined display pattern. Thus, the number of defective products and manufacturing costs can increase as a result of the shifted support frame.

Accordingly, the present invention is directed to a method of correcting the position of a sealant dispenser support frame that substantially prevents one or more of the problems and limitations of the prior art.
It is an object of the present invention to provide a method for adjusting the alignment of a support frame of a sealant dispenser that dispenses sealant onto a glass substrate.
Another object of the present invention is to provide a method for adjusting the alignment of a support frame of a sealant dispenser comprising at least two support frames.
Another object of the present invention is to provide an apparatus for performing a dispensing operation.

The advantages, objects, and features added in the present invention are set forth in part in the following description, and in part will be obvious to those skilled in the art upon consideration of the following, or Can be learned from the implementation of The objectives and other advantages of the invention may be realized and attained by the structure particularly pointed out in the written description and claims hereof as well as the appended drawings.
A method for adjusting the alignment of at least one support frame in a sealant dispenser to achieve these and other advantages and in accordance with the purposes of the present invention, as embodied and broadly described herein, includes: Identifying at least two correction marks provided on the glass substrate while moving the alignment sensor in one direction. Here, the first direction is a direction parallel to the long side of the support frame. The method further includes determining whether an assumed straight line that corrects at least two correction marks identified by the alignment sensor is parallel to the first direction, such that the assumed straight line is parallel to the first direction. Adjusting the alignment of at least one support frame.
In another embodiment of the invention, a method is introduced for adjusting the alignment of at least one support frame in a sealant dispenser. The method includes measuring at least two distances between at least two support frames and calculating a difference between the measured distances, if any. Further, the method includes adjusting the alignment of the support frame by utilizing a modified distance that equalizes the measured distances when the measured distances are different. Here, the correction distance is a difference in measured distance.

In another embodiment of the present invention, an apparatus for performing a dispensing operation is provided. This device is arranged on both sides of the table, a frame representing the body of the device, a table provided on the upper surface of the frame, a stage mounted on the table to receive a glass substrate onto which the sealant is dispensed. A linear motor guide and at least two support frames provided between the linear motor guides and arranged perpendicular to the linear motor guide so that the at least two support frames can move along the linear motor guide; , An alignment sensor that moves in the first direction so as to identify the correction mark, and a drive unit that drives the alignment sensor in the first direction. Here, the first direction is a direction parallel to the long side of the support frame.
In another embodiment of the present invention, another device for performing the dispensing operation is introduced. This device is arranged on both sides of the table, a frame representing the body of the device, a table provided on the upper surface of the frame, a stage mounted on the table to receive a glass substrate onto which the sealant is dispensed. A linear motor guide and at least two support frames provided between the linear motor guides and arranged perpendicular to the linear motor guide so that the at least two support frames can move along the linear motor guide; A distance measuring unit for measuring at least two distances between the at least two support frames.
It is understood that both the foregoing general description and the following detailed description of the invention are exemplary and explanatory and are intended to provide further explanation of the invention as claimed. I want.

  According to the alignment adjustment method and apparatus for the support frame of the sealant dispenser of the present invention, an accurate dispensing operation can be performed.

  Reference will now be made in detail to the preferred embodiments of the invention, examples of which are illustrated in the accompanying drawings. Wherever possible, the same reference numbers will be used throughout the drawings to refer to the same or like parts.

Next, a method for adjusting the alignment of the support frame of the sealant dispenser according to the present invention will be described with reference to the accompanying drawings.
As shown in FIG. 1, the sealant dispenser to which the alignment adjustment method of the support frame of the sealant dispenser according to the present invention is applied includes a frame 10 representing the main body of the dispenser, a table 20 provided on the upper surface of the frame 10, and an upper A stage 24 mounted on the table 20 so that the glass substrate 50 on which the sealant is dispensed can be disposed on the upper surface, and a first linear motor 22 that drives the stage 24 in the second direction, respectively. I have. Here, the second direction means a direction parallel to the S axis.

The sealant dispenser further includes linear motor guides 35 provided at both ends of the table 20 in the second direction. Further, the sealant dispenser is provided between the linear motor guides 35 so as to move in the first direction so that the first support frame 31 and the second support frame 32 can move along the linear motor guide 35. A first support frame 31 and a second support frame 32 arranged at the same time, and at least one second linear driving the support frames 31, 32 along the linear motor guide 32 (ie in the second direction). And a motor 33.
The second linear motor of the sealant dispenser includes a second magnet 33 disposed on the upper surface of each linear motor guide 35 in the second direction, and both sides of each support frame corresponding to the second magnet 33. And a second mover 34 disposed at the lower end portion of the head.

  Here, since the size of the glass substrate 50 is large, and in order to shorten the dispensing operation time, the sealant dispenser includes two support frames, that is, a first support frame 31 and a second support frame 32. However, the number of support frames is not limited, but more support frames can be provided as needed. Further, the second mover 34 of the second linear motor is attached to both ends of the support frames 31 and 32 so as to apply a driving force to both ends of the support frames 31 and 32.

  The plurality of head units 41 are provided on one side of each of the support frames 31 and 32 so that the head unit 41 can move in the first direction (direction parallel to the Q axis). The dispensing operation can be performed on the glass substrate fixed to the stage 24 according to a predetermined pattern (or shape). In addition, the sealant dispenser further includes a third linear motor that drives the head unit 41 in the first direction.

In particular, each head unit 41 provided on the support frames 31 and 32 holds the sealant and the head mount 42 that moves in the first direction when the driving force of the third linear motor is applied to the head mount 42. And a syringe (not shown) coupled to the head mount 42 and a nozzle (not shown) for dispensing sealant from the syringe.
Further, the third linear motor of the sealant dispenser includes a third magnet 44 provided on one side of each support frame 31, 32 in the first direction, and a head mount 42 corresponding to the third magnet 44. And a third mover 43 provided to the vehicle.

  The sealant dispenser further includes an alignment sensor 45 that moves in a first direction for identifying the correction mark 55. The correction mark 55 can be provided (or printed) on the glass substrate 50 in advance (for example, when the glass substrate is formed), or can be marked after the glass substrate 50 is manufactured. The alignment sensor 45 is preferably coupled to the head unit 41 that moves in the first direction by the operation of the third magnet 44 and the third mover 43. The correction mark 55 is provided on the edge of the circuit pattern 53 formed on the glass substrate 50 so as to serve as a reference for measuring the alignment of the support frames 31 and 32 with respect to the glass substrate 50. The lines for correcting the correction mark 55 are parallel or perpendicular to each other.

  Since the combination of the third mover 43 and the third magnet 44 enables the head unit 41 to move in the first direction, the alignment sensor 45 also has the correction mark 55 provided on the glass substrate 50. It can move together with the head unit 41 so as to identify them sequentially.

Next, a method for adjusting the alignment of the support frame configured as described above will be described.
FIG. 3 is a flowchart illustrating a method for adjusting the alignment (or position) of a support frame of a sealant dispenser according to a preferred embodiment of the present invention. FIG. 4 is a reference diagram showing two non-parallel support frames and an alignment sensor attached to the second support frame to move along the Q axis to identify the correction mark.

  First, the glass substrate 50 is loaded onto the stage 24 and then properly secured thereon. After the glass substrate 50 is fixed on the stage 24, the support frames 31 and 32 move toward the printed correction mark 55 on the glass substrate 50 (S1). Thereafter, the second support frame 32 moves to a fixed position, whereby the alignment of the support frame can be adjusted.

  After the second support frame 32 is disposed at the alignment adjustment position, the third linear motor drives the head unit 41 attached to the second support frame 32 so as to perform the correction mark identification operation. More specifically, the correction mark identifying operation is performed so that the correction unit 55 identifies the correction mark 55 shown on the glass substrate 50 while moving in the first direction, that is, the direction along the long side of the support frame 32. 41 is provided (S2).

Next, an assumed straight line connecting the correction marks 55 is identified by the alignment sensor 45. The assumed straight line is compared with the path along which the alignment sensor 45 moves in order to determine whether the assumed straight line and the path are parallel to each other (S3).
Hereinafter, the assumed straight line is referred to as X ₁ -line 150. The X ₁ -line 150 is parallel to the S axis. In addition, the movement path of the alignment sensor 45 that moves along the support frames 31 and 32 is referred to as an X ₂ -line 160. The X ₂ -line 160 is parallel to the Q axis.

If the X ₂ -line 160 and the X ₁ -line 150 are not parallel to each other as shown in FIG. 5, the alignment of the X ₂ -line 160 with the X ₁ -line 150 is adjusted so that the _two lines are parallel. Thus, alignment adjustment is performed so as to correct the alignment of the X ₂ -line 160 and the X ₁ -line 150 (S4).

When performing alignment adjustment (S4), the control unit _{X 1} - calculating the offset amount of the _X 2 -160 for the line 150. Here, the offset amount is measured by an angle. The control unit can then calculate the amount of offset required to correct the deviation relative to the X ₂ -line 160, thereby adjusting the X ₂ -line 160 to be parallel to the X ₁ -line 150. In performing the alignment, the control unit uses an offset that modifies to adjust the second mover 34 located on the support frame 32, thereby making the X ₂ -line 160 parallel to the X ₁ -line 150. can do.

The plurality of second movers 34 are preferably provided on at least two sides of the support frame 32. Here, the second mover 34 provided at one end of the support frame 32 remains fixed, and the second mover 34 provided at the other end of the support frame 32 connects the X ₂ -line 160 to the X-line 160. _In order to be parallel to the ₁ -line 150, it is preferable to move along the second linear motor guide 35 corresponding to the second direction (along the movement path of the linear motor guide 35).

When it is determined in step (S3) that X ₂ -line 160 is parallel to X ₁ -line 150, the support frame alignment adjustment operation can be terminated in step (S3) without proceeding to step (S4). There is sex. When the alignment process is complete, the second support frame 32 is parallel to the X ₁ -line 150, thereby aligning the second support frame 32 with the circuit pattern 53.

  Meanwhile, the alignment process can be applied to a sealant dispenser having a single support frame or two or more support frames as shown in FIGS. If the sealant dispenser comprises more than one support frame as described above, the method of aligning the support frames further determines whether each support frame is properly aligned after the alignment operation has been performed. It is preferable that the confirmation step (S5) is included.

  In the confirmation step (S5), after completion of step (S4), a determination is made as to whether or not the alignment process steps (S1 to S4) for the support frames 31 and 32 have been performed. If all alignment process steps have been performed on the support frames 31, 32, another attempt to adjust the alignment of the support frame ends. If the complete alignment process is not sufficiently performed on the support frame, the alignment adjustment steps (S1-S4) are repeated for the support frame.

  If the sealant dispenser comprises more than one support frame and the alignment adjustment is not made sufficiently on the at least two support frames, the alignment for any one of the at least two support frames can be adjusted first. After adjusting one alignment of the support frame, the alignment of the next support frame is adjusted. That is, the support frame is adjusted in order. Alternatively, the alignment of at least two support frames can be adjusted simultaneously.

  In the above embodiment, the support frame is aligned based on the correction mark provided on the glass substrate. However, in another embodiment, the glass substrate can be rotated by an offset angle (measured in angle) to adjust the alignment of the support frame so that the support frames are parallel to each other. Here, the offset angle refers to (in angle) how much the glass substrate is shifted to be parallel to at least two parallel support frames.

  Referring to another embodiment, a sealant dispenser is disposed on a frame representing the body of the dispenser, an upper surface of the frame that can be rotated by a predetermined angle, a table parallel to the surface, and a sealant dispensed thereon. A stage mounted on the upper surface to receive the glass substrate, a linear motor guide provided on both sides of the table so that the linear motor guide extends along the S axis, and at least two support frames Between the at least two support frames provided between the linear motor guides and arranged perpendicularly to the linear motor guides, so as to be movable along the linear motor guides in the second direction. A distance measuring unit for measuring at least two distances.

  In addition, a method for adjusting the alignment of at least two support frames in a sealant dispenser includes measuring at least two distances between at least two support frames, calculating a difference between the measured distances, and measuring Adjusting the alignment of the support frame by utilizing the difference calculated so that the at least two measured distances are parallel to each other, and aligning the glass substrate with the at least two support frames Rotating the glass substrate to do so.

A more detailed description of another embodiment of the present invention will be described with reference to the accompanying drawings. Since the components of this embodiment are the same as those of the previous embodiment, they will not be described in detail.
FIG. 5 is an example showing a glass substrate loaded on a sealant dispenser with an offset support frame. FIG. 6 shows the support frame of FIG. 5 after adjusting the alignment of the support frame, but the glass substrate and the support frame are offset (or not parallel). FIG. 7 illustrates adjustment of the alignment of the glass substrate with respect to the support frame of FIG. FIG. 8 is a flowchart showing a method for adjusting the alignment of the support frame of the sealant dispenser.

In this embodiment, the sealant dispenser has at least two supports movable along the frame 10 (see FIG. 1), the table 20 (see FIG. 1), the stage 24 (see FIG. 1), and the linear motor guide 35. Frames 31 and 32 are provided.
More specifically, the table 20 is configured to rotate left or right. For example, the table can be rotated twice to the left to align a glass substrate placed on top of the table with the support frame.

  The sealant dispenser further comprises a distance measuring unit for measuring at least one distance between the two support frames 31, 32. The distance measuring unit preferably measures at least two linear distances d1, d2 between the support frames 31, 32. For example, the at least two measured distances should be close to or at the end of the support frame close to the linear motor guide 35.

  The distance measuring unit includes two displacement sensors 140 attached to one of the support frames 31 or 32. The laser displacement sensor is preferably a non-contact type. As shown in FIG. 6, the laser displacement sensor 140 is mounted on the support frame 31. The laser displacement sensor 140 is mounted near each end of the support frame 31 or 32 so as to perform an accurate measurement. Here, the laser displacement sensor 140 measures linear distances d1 and d2 between the support frames 31 and 32.

A method for adjusting the alignment of the support frame in the sealant dispenser for the above-described structure will now be described in detail with reference to FIGS.
In the following description, it is assumed that the two support frames 31 and 32 are not parallel to each other, and the glass substrate 50 guided in the stage 24 is not initially aligned with the support frames 31 and 32 or the frame 10.

  First, the glass substrate 50 is guided to the stage 24, and then a measurement step (S'1) is performed. The measuring step (S′1) is a step of measuring the distances d1 and d2 between the opposite support frames 31 and 32 using the laser displacement sensor 140 mounted on the support frame 31.

  Next, a determination step (S′2) is performed. The determination step (S′2) is a step of calculating the difference between the distances d1 and d2 between the support frames 31 and 32 measured in the measurement step (S′1). If it is determined that the distance d1 is equal to the distance d2 (that is, there is no difference between the distances d1 and d2, that is, the two support frames 31 and 32 are parallel to each other), the substrate alignment step (S′4) is performed. Done. However, in the determination step (S′2), it is determined that the distance d1 is not equal to the distance d2 (that is, there is a difference between the distances d1 and d2, that is, the two support frames 31 and 32 are not parallel to each other). If this is the case, a support frame alignment step (S'3) is performed.

  In the support frame alignment step (S′3), the alignment of the support frames 31 and 32 is adjusted so that the distances d1 and d2 are the distance d1 calculated in the determination step (S′2) as shown in FIG. And have the same value based on the difference between d2. Next, the support frames 31 and 32 are parallel to each other.

  After the alignment of the support frames 31, 32 is completed, the process preferably returns to the measuring step (S'1) for measuring the distances d1, d2. Thereafter, a determination step (S′2) for calculating and determining whether the distances d1 and d2 have the same value is performed.

When adjusting the alignment of the support frames 31, 32, one of the support frames 31, 32 (ie, the support frame 32) remains fixed or stationary, and the other support frame (ie, the support frame 31) is fixed. It is preferable to make necessary adjustments with respect to the support frame (ie, support frame 32).
When adjustment is performed, it is preferable that one end portion of the support frame 31 moves along the corresponding linear motor guide 35 and the multi-end portion of the support frame 31 is fixed or does not move along the linear motor guide 35.

  The above example will be described in more detail. One of the support frames 31 and 32 (that is, the support frame 32) is fixed so as to serve as a reference when performing the alignment operation, and the other support frame 31 is, for example, a support frame with respect to the reference support frame. It is preferred to move one of its ends along the linear motor guide 35 to align. The end of the support frame 31 with the shorter distance between d1 and d2 (measured at S′1) is the distance of the distance (measured at S′2) to obtain a parallel state between the support frames 31 and 32. Based on the difference, it is moved away from the reference support frame 32. In another method, the end of the support frame 31 having a longer distance between d1 and d2 moves in the direction toward the support frame 32 based on the difference in distance so that the support frames 31 and 32 are parallel to each other. Can be made.

  Alternatively, the ends of the support frames 31, 32 are each in opposite directions so that the first support frame (ie, the support frame 31) is parallel to the second support frame (ie, the support frame 32). Or both of the support frames 31, 32 can be moved accordingly to adjust the distance between each support frame to obtain a parallel state.

  In the substrate alignment step (S′4), the glass substrate 50 is rotated at a specific angle α, so that the circuit pattern 53 of the glass substrate 50 is parallel to the S-axis of the support frames 31 and 32. The table 20 is also preferably capable of being rotated at a specific angle, so the table 20 should be rotated so that the glass substrate 50 fixed on the stage 24 rotates correspondingly.

  Here, the two support frames 31 and 32 are parallel to each other. Therefore, when the glass substrate 50 is rotated so that the glass substrate 50 is parallel to the support frames 31 and 32, the two support frames 31 and 32 and Alignment between the glass substrates 50 is achieved. As shown in FIG. 7, when the support frames 31 and 32 are parallel to each other, the sealant 52 can be accurately dispensed on the glass substrate 50.

It will be apparent to those skilled in the art that various modifications and variations can be made to the present invention without departing from the spirit and scope of the invention. Thus, it is intended that the present invention include modifications and variations of this invention provided they come within the scope of the appended claims and their equivalents.
The accompanying drawings, which are included to further understand the invention and are incorporated into and form part of this application, illustrate embodiments of the invention and, together with the description, serve to explain the principles of the invention. Fulfill.

It is a perspective view which shows the sealant dispenser to which the alignment adjustment method of the support frame of a sealant dispenser is applied. FIG. 2 is a plan view of a conventional sealant dispenser illustrating a problem during a sealant dispensing process. 6 is a flowchart illustrating a method for adjusting the alignment or position of a support frame of a sealant dispenser according to a preferred embodiment of the present invention. FIG. 6 is a reference diagram showing two non-parallel support frames and alignment sensors mounted on a second support frame that moves along the Q axis to identify correction marks. FIG. 6 is an example showing a glass substrate loaded on a sealant dispenser having a displaced support frame. FIG. It is a figure which shows the support frame which adjusted the alignment of FIG. FIG. 7 is a diagram illustrating adjustment of the alignment of the glass substrate with respect to the parallel support frame in which the alignment of FIG. 6 is adjusted. It is a flowchart which shows the alignment adjustment method of the support frame of a sealant dispenser.

Explanation of symbols

10 frame 20 table 22 first linear motor 24 stage 31 first support frame 32 second support frame 33 second linear motor 34 second mover
35 Linear Motor Guide 41 Head Unit 42 Head Mount 43 Third Mover 44 Third Linear Motor, Third Magnet 45 Alignment Sensor 50 Glass Substrate 52 Sealant 53 Circuit Pattern 55 Correction Mark 140 Displacement Sensor 150 X ₁ -Line 160 X ₂ -line

Claims (24)

A method for adjusting the alignment of at least one support frame in a sealant dispenser, comprising:
Identifying at least two correction marks provided on the glass substrate and moving the alignment sensor in a first direction which is a direction parallel to the long side of the support frame;
Determining whether an assumed straight line that corrects at least two correction marks identified by the alignment sensor is parallel to a first direction;
Adjusting the alignment of at least one support frame such that the assumed straight line is parallel to the first direction, and adjusting the alignment of the support frame of the sealant dispenser.   The method for adjusting the alignment of a support frame of a sealant dispenser according to claim 1, wherein at least two correction marks are printed or identified so as to be recognized by the alignment sensor.   The alignment method for a support frame of a sealant dispenser according to claim 1, wherein the alignment sensor is connected to a head unit.   4. The method for adjusting the alignment of a support frame of a sealant dispenser according to claim 3, wherein the head unit is provided on at least one support frame.   The alignment method for the support frame of the sealant dispenser according to claim 1, wherein the assumed straight line is compared with a path along which the head unit moves along the long side of the support frame.   6. The method for adjusting the alignment of a support frame of a sealant dispenser according to claim 5, wherein a path along which the head unit moves along the long side of the support frame is parallel to the first direction.   By moving the first end of the first support frame along the linear motor guide and fixing the second end of the first support frame, the alignment of the first support frame becomes the second The method for adjusting the alignment of the support frame of the sealant dispenser according to claim 1, wherein the adjustment is performed with respect to the support frame.   After the first support frame and the second support frame are parallel to each other, the glass substrate is rotated in the first direction or the second direction so that either side of the glass substrate is parallel or perpendicular to the support frame. The support frame alignment of a sealant dispenser according to claim 1, wherein the second direction is a direction perpendicular to a long side of the support frame. Adjustment method.   The sealant dispenser of claim 1, further comprising the step of confirming that each step of claim 1 was successfully performed on each of the at least two support frames when there are at least two support frames. To adjust the alignment of the support frame. A method for adjusting the alignment of at least one support frame in a sealant dispenser, comprising:
Measuring at least two distances between at least two support frames;
If so, calculating a difference between the measured distances;
Adjusting the alignment of the support frame by utilizing a correction distance that equalizes the measured distances when the measured distances are different, the correction distance being a difference between the measured distances. A method for adjusting the alignment of a support frame of a sealant dispenser.   11. The method of adjusting alignment of a support frame of a sealant dispenser according to claim 10, wherein the at least two distances are measured by at least two sensors provided on one of the at least two frames.   The method for adjusting the alignment of a support frame of a sealant dispenser according to claim 11, wherein at least two sensors are provided near or at each end of the support frame.   12. The support frame alignment of a sealant dispenser according to claim 11, wherein at least two sensors measure the distance from the sensor to another support frame by emitting light or laser perpendicular to each sensor. Adjustment method.   The support frame of a sealant dispenser according to claim 10, wherein the support frame is adjusted by moving the first end of the support frame along the linear motor guide to a distance according to the correction distance. Alignment adjustment method.   15. The sealant dispenser of claim 14, wherein the first end moves toward or away from the other support frame to obtain a parallel state between the two support frames. To adjust the alignment of the support frame.   Move the first end of the first support frame and the second end of the second support frame separately relative to the second support frame so that the two support frames are parallel to each other The method of claim 10, wherein the first support frame is adjusted by adjusting the alignment of the support frame of the sealant dispenser according to claim 10.   The first support frame and the second support frame move along a linear motor guide so as to obtain a parallel state between the first support frame and the second support frame. The alignment adjustment method of the support frame of the sealant dispenser according to claim 10.   After the first support frame and the second support frame are parallel to each other so that either one side of the glass substrate is parallel or perpendicular to the support frame, the glass substrate is moved in the first direction or the second direction. The method according to claim 10, further comprising a step of rotating, wherein the second direction is a direction perpendicular to a long side of the support frame. After adjusting the support frame, checking whether at least two support frames are parallel to each other;
Measuring at least two distances between at least two support frames;
The method for adjusting the alignment of the support frame of the sealant dispenser according to claim 10, further comprising: calculating a difference between the measured distances. A device that performs a dispensing operation,
A frame representing the body of the device;
A table disposed on the upper surface of the frame;
A stage mounted on the table to receive a glass substrate disposed on the upper surface and onto which a sealant is dispensed;
Linear motor guides arranged on both sides of the table;
At least two support frames disposed between the linear motor guides and disposed perpendicular to the linear motor guides, such that at least two support frames can move along the linear motor guides;
An alignment sensor that moves in a first direction to recognize the correction mark;
A drive unit for driving the alignment sensor in a first direction,
The alignment device for a support frame of a sealant dispenser, wherein the first direction is a direction parallel to a long side of the support frame.   The apparatus for adjusting the alignment of a support frame of a sealant dispenser according to claim 20, wherein the apparatus is a sealant dispenser or a liquid crystal dispenser. A device that performs a dispensing operation,
A frame representing the body of the device;
A table provided on the upper surface of the frame;
A stage mounted on the table to receive a glass substrate, disposed on the upper surface and having a sealant dispensed thereon;
Linear motor guides arranged on both sides of the table;
At least two support frames disposed between and perpendicular to the linear motor guide, such that at least two support frames can move along the linear motor guide;
A distance measuring unit for measuring at least two distances between the at least two support frames, and an alignment adjustment device for the support frame of the sealant dispenser.   The apparatus for adjusting alignment of a support frame of a sealant dispenser according to claim 22, wherein the distance measuring unit comprises one or more laser displacement sensors.   The apparatus of claim 22, wherein the apparatus is a sealant dispenser or a liquid crystal dispenser.

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