TWI653190B - Alignment method and alignment device - Google Patents

Abstract

The present disclosure proposes a registration method for performing alignment of a first bonding material and a second bonding material. The alignment method includes: moving a first bonding material toward the target area by using the first moving component; and capturing a plurality of first images of the first bonding material during the moving of the first bonding material, wherein each of the first images An image includes a first mark; and an angular deviation and a lateral error between the first adhesive and the second adhesive are determined according to the plurality of first marks, and the first moving element is adjusted according to the angular deviation and the lateral error. In addition, a aligning device using this method has also been proposed.

Description

Registration method and alignment device

The disclosure relates to a registration method and a registration device.

With the advancement of technology and the changes in the market, the design of handheld terminals ranges from narrow borders to no borders, and the demand for large screens continues to rise. In such a design, the area where the wiring can be made smaller and smaller, and the assembly precision required for the product is getting higher and higher, and more and more precise. In addition, in recent years, soft electronic products have become more and more popular, and the demand for flexible screen panels has also increased.

In order to meet these needs, manufacturers must increase their production capacity. Therefore, continuous manufacturing methods such as Roll-to-Roll (R2R) or Roll-to-Sheet (R2S) are often used in continuous bonding processes. However, whether it is a roll-to-roll or roll-to-piece manufacturing method, how to improve the accuracy of the fit is one of the important issues.

The disclosed embodiment provides a aligning method and a aligning device, which can accurately align the bonding materials, thereby improving accuracy and productivity.

The alignment method of the embodiment of the present disclosure is for performing alignment of the first bonding material and the second bonding material. The aligning method includes the steps of: moving a first tiling material toward a target area by using a first moving component; and capturing a plurality of first images of the first tiling material during moving the first tiling material, wherein each The first image includes a first mark; and determining an angular deviation and a lateral error between the first adhesive and the second adhesive according to the plurality of first marks, and adjusting the first moving component according to the angular deviation and the lateral error .

The alignment device of the embodiment is used for performing alignment of the first bonding material and the second bonding material. The alignment device includes a first moving element, a first image capturing element, and a control element. The first moving element is configured to move the first applicator toward the target area. The first image capturing component is configured to capture a plurality of first images of the first adhesive during the moving of the first moving component, wherein each of the first images includes the first marking. The control component is coupled to the first moving component and the first image capturing component for determining an angular deviation and a lateral error between the first bonding material and the second bonding material according to the plurality of first markings, and according to the angular deviation Adjusting the first moving element with lateral error.

Based on the above, the alignment method and the alignment device proposed by the embodiment of the present disclosure immediately capture the first image of the plurality of first stickers in the process of moving the first bonding material to the bonding target area. And analyze the errors that may occur when fitting. In addition, the embodiment of the present disclosure adjusts the first moving component responsible for moving the first bonding material according to the result of the image analysis when continuously moving the first bonding material, and does not need to go through the indexing mechanism in the whole process, and can be instantaneously Accurate completion of the alignment.

The above described features and advantages of the present invention will be more apparent from the following description.

100‧‧‧ alignment device

110‧‧‧First moving element

111‧‧‧ alignment platform

112‧‧‧Long-term transfer mechanism

120‧‧‧Second moving element

130‧‧‧First image capture component

140‧‧‧Second image capture component

150‧‧‧Control elements

ERR _MD ‧‧‧Vertical error

ERR _TD ‧‧‧lateral error

ERR _θ ‧‧‧ angular deviation

M1‧‧‧ first patch

M2‧‧‧Second patch

m _1i , m _{11 ,} m ₁₂ , m ₁₃ ‧‧‧ first mark

m _2i , m _21, m ₂₂ , m ₂₃ ‧‧‧ second mark

MD‧‧‧ portrait

Steps of the S401~S410‧‧‧ alignment method

TA‧‧‧Target area

TD‧‧ transverse

TR1‧‧‧ first track

TR2‧‧‧ second track

1 is a schematic block diagram of a registration device in an embodiment of the present disclosure.

2 is a side elevational view of the alignment device in an embodiment of the present disclosure.

3 is a top plan view of a aligning device in an embodiment of the present disclosure.

4 is a flow chart of a method for aligning an embodiment of the present disclosure.

FIG. 5 is a schematic diagram of capturing an image during the process of moving a sticker in an embodiment of the present disclosure.

FIG. 6 is a schematic diagram of a first track and a second track in an embodiment of the disclosure.

FIG. 7 is a schematic diagram of adjusting longitudinal errors in an embodiment of the present disclosure.

The alignment method and the alignment device proposed in the embodiment can perform the alignment of the first bonding material and the second bonding material when the first bonding material and the second bonding material are bonded. For convenience of description, the embodiment of the present disclosure will use a aligning device of a Roll-Ro-Sheet (R2S) as an example to illustrate the aligning method, and adjust the retort as the target at the time of alignment. The speed and direction of travel of the flakes enables the first applicator (e.g., flakes) to be accurately conformed to the second applicator (e.g., web) in the target area.

It must be noted that the disclosure is not limited to this. In other embodiments, this It is disclosed that the proposed aligning device can also be used as a aligning device for a Sheet-to-Sheet (S2S) or a Roll-to-Roll (R2R), and the alignment proposed by the disclosure is applied. method. In addition, in other embodiments, the sheet material may be used as a target, and the traveling speed and direction of the web may be adjusted, or the sheet material and the coil material may be adjusted at the same time, so that the first bonding material and the second bonding material are at the target. Precise fit in the area.

1 is a schematic block diagram of a aligning device in an embodiment of the present disclosure; FIG. 2 is a side view of the aligning device in an embodiment of the present disclosure; A bird's eye view.

Referring to FIG. 1 to FIG. 3 , the alignment device 100 of the present embodiment includes a first moving component 110 , a second moving component 120 , a first image capturing component 130 , a second image capturing component 140 , and a control component 150 . The control component 150 is coupled to the first moving component 110 , the second moving component 120 , the first image capturing component 130 , and the second image capturing component 140 . In the present embodiment, the first bonding material M1 (for example, a sheet material) and the second bonding material M2 (for example, a coil material) are bonded in the target area TA, and the alignment device 100 is used to perform the first The alignment of the bonding material M1 and the second bonding material M2.

In the present embodiment, the first moving element 110 includes an alignment platform 111 and a long stroke transfer mechanism 112. As shown in FIG. 2 and FIG. 3, the alignment platform 111 is disposed on the long stroke transfer mechanism 112 for carrying the first bonding material M1, and the long stroke transfer mechanism 112 can utilize the roller or other means to longitudinal MD. (also referred to as machine direction) moves the registration platform 111 to move the first bonding material M1 toward the target area TA.

In the present embodiment, the alignment platform 111 has two degrees of freedom with respect to the adjustment of the first bonding material M1, and the long stroke transfer mechanism 112 has one degree of freedom. In detail, the alignment platform 111 can move the first bonding material M1 along the lateral direction TD (also referred to as a cross-machine direction), and can also rotate the first surface on the plane formed by the longitudinal MD and the lateral direction TD. The material M1 is attached; and the long stroke transfer mechanism 112 is only capable of moving the first bonding material M1 in the longitudinal direction MD.

It is worth mentioning that the disclosure does not limit the number of alignment platforms 111 in order to enable a continuous and uninterrupted manufacturing process. In other words, the first moving element 110 can have, for example, one, two or more alignment platforms 111 that alternately move the first admixture M1 toward the target area TA.

In the present embodiment, the second moving element 120 is, for example but not limited to, a rolling wheel for taking the second bonding material M2 that acts as a coil to move toward the target area TA. The target area TA of the present embodiment is located directly below the second moving element 120 (eg, the rolling wheel), and the second moving element 120 rolls the second bonding material M2 from above the rolling wheel to the rolling wheel Below.

In this embodiment, the first image capturing component 130 includes, for example, a set of Charge Coupled Device (CCD), Complementary Metal-Oxide Semiconductor (CMOS) components, or other kinds of photosensitive materials. Component camera. In this embodiment, the first image capturing component 130 is disposed above the alignment platform 111 and faces the alignment platform 111 for receiving a shooting trigger signal from the first moving component 110 or the control component 150, and according to the shooting. The trigger signal is used to capture the first image of the first bonding material M1.

In this embodiment, the control component 150 is, for example, a central processing unit (CPU), a microprocessor (Microprocessor), a digital signal processor, a programmable controller, and an application specific integrated circuit (Application Specific Integrated Circuits). , ASIC), Programmable Logic Device (PLD) or other components with data processing functions. In this embodiment, the control component 150 obtains the first image from the first image capturing component 130 and performs the alignment method proposed by the disclosed embodiment to analyze the first image and adjust the first moving component 110 correspondingly. The alignment of the first bonding material M1 and the second bonding material M2 is performed.

It is worth mentioning that in order to compensate for the deviation of the second bonding material M2 as the alignment target due to tension or other factors during the scrolling process, the second image is further disposed above the second moving component 120. Take element 140. The second image capturing component 140 is similar to the first image capturing component 130 for receiving the shooting trigger signal from the second moving component 120 or the control component 150, and capturing the second bonding material M2 according to the shooting trigger signal. Second image. In this way, even if the second bonding material M2 is deviated during the scrolling process, the control component 150 can accurately compare the first bonding material M1 with the second bonding material by comparing the first image and the second image. M2 is aligned.

The detailed steps of the alignment method of the present disclosure will be described below with reference to the above-described alignment device 100.

4 is a flow chart of a method for aligning an embodiment of the present disclosure.

Referring to FIG. 4, in step S401, the first moving component 110 faces the target. The area TA moves the first bonding material M1, and in step S402, the second moving element 120 moves the second bonding material M2 toward the target area TA so that the first bonding material M1 and the second bonding material M2 can The bonding is performed in the target area TA. The specific movement mode has been described in the foregoing paragraphs with reference to FIG. 1 to FIG. 3, and details are not described herein again.

In step S403, in the process that the first moving component 110 moves the first bonding material M1, the first image capturing component 130 captures a plurality of first images of the first bonding material M1, and in step S404, During the movement of the second moving component 120 to the second bonding material M2, the second image capturing component 140 captures a plurality of second images of the second bonding material M2.

FIG. 5 is a schematic diagram of capturing an image during the process of moving a sticker in an embodiment of the present disclosure.

In detail, the first moving element 110 includes, for example, at least one first encoder for indicating the absolute moving position of the first moving element 110. In the present embodiment, the absolute moving position of the first moving member 110 is, for example, the longitudinal moving distance of the long stroke transfer mechanism 112. When the long-stroke transfer mechanism 112 moves the alignment platform 111 by a certain distance in the longitudinal direction MD, the first moving component 110 sends a shooting trigger signal to the first image capturing component 130, for example, in response to the shooting trigger signal. An image capture component 130 will take a picture. If the first bonding material M1 is located in the viewing angle of the first image capturing component 130, the first image capturing component 130 can capture the plurality of first images of the first bonding material M1. As shown in FIG. 5, the first bonding material M1 sequentially includes a plurality of equally spaced first marks m _1i , i being a natural number. In an embodiment, while each first image is captured, the control component 150 records the absolute movement position of the first moving component 110 at the time of shooting to estimate the absolute value of the first marker m _1i in each of the first images. position.

Similarly, the second moving element 120 includes, for example, at least one second encoder to indicate the absolute moving position of the second moving element 120. In the present embodiment, the absolute moving position of the second moving member 120 is, for example, the rolling angle of the rolling wheel. When the rolling wheel is rotated by a specific angle, the second moving component 120 sends a shooting trigger signal to the second image capturing component 140, for example, and in response to the shooting triggering signal, the second image capturing component 140 performs shooting. . If the second bonding material M2 is located in the viewing angle of the second image capturing component 140, the second image capturing component 140 can capture the plurality of second images of the second bonding material M2. As shown in FIG. 5, the second bonding material M2 sequentially includes a plurality of equally spaced second marks m _2i , i being a natural number. In an embodiment, while each second image is captured, the control component 150 records the absolute movement position of the second moving component 120 at the time of shooting to estimate the absolute value of the second marker m _2i in each second image. position. In particular, in the present embodiment, the spacing between the second marks m _2i is the same as the spacing between the first marks m _1i .

In step S405, the control component 150 determines a first starting position of the plurality of first marks m _1i of the plurality of first images and a plurality of first position changes, and in step S406, the control component 150 determines the plurality of The second starting position of the plurality of second marks m _2i of the two images and the plurality of second positions are changed. Then, in step S407, the control component 150 determines the angle between the first bonding material M1 and the second bonding material M2 according to the first starting position, the second starting position, the first position change, and the second position change. Deviation and lateral error.

In the present embodiment, the first first mark m ₁₁ on the first bonding material M1 is presented in a specific aspect, and the first second mark m ₂₁ on the second bonding material M2 is also specified. The appearance of the situation. According to this, when the control component 150 finds the first mark m ₁₁ having the specific aspect from one of the plurality of images captured by the first image capturing component 130, the image is the first image of the first image. The time control element 150 records the position of the first mark m ₁₁ in the first image as the first starting position. Similarly, when the control element 150 finds the second mark m ₂₁ having the specific aspect from one of the plurality of images captured by the second image capturing component 140, the image is the first second image, The time control element 150 records the position of the second mark m ₂₁ in the second image as the second starting position.

After obtaining the first starting position and the second starting position, the control component 150 continues to obtain the plurality of first marks m _1i from the plurality of first images, and determines that the plurality of first marks m _{1i are} in the plurality of first images. a first plurality of the change in position, and a plurality of second mark m _2i made from a plurality of the second image, and determines a second plurality of the plurality of marks in a plurality of m _2i second image a second change in position.

FIG. 6 is a schematic diagram of a first track and a second track in an embodiment of the disclosure.

For example, the control component 150 can continue to obtain two consecutive first marks m _12, m ₁₃ in two (for example, the second and third) first images after the first first image. a position in the first image, and calculating a first position change of the first mark m ₁₂ and the first mark m ₁₁ in the first and second first images, and the first mark m ₁₃ and the first mark m ₁₂ are The first position in the first and third first images changes. Accordingly, the first trajectory TR1 as shown in FIG. 6 can be drawn by the respective absolute movement positions of the first moving element 110 when the three first images recorded by the control element 150 are captured.

On the other hand, the control element 150 can continue to obtain two consecutive second marks m _22, m ₂₃ in two (for example, the second and third) second images after the first second image. a position in the second image, and calculating a second position change of the second mark m ₂₂ and the first mark m ₂₁ in the first and second second images, and the second mark m ₂₃ and the second mark m ₂₂ are The second position in the second and third second images changes. Accordingly, the second trajectory TR2 as shown in FIG. 6 can be drawn by the absolute movement position of the second moving element 120 when the three second images recorded by the control element 150 are captured.

Next, by comparing the first track TR1 and the second track TR2, the angular deviation ERR _θ and the lateral error ERR _TD between the first bonding material M1 and the second bonding material M2 can be obtained. In this embodiment, the control component 150 can obtain the first statistically based on the first starting position, the second starting position, the first position change, and the second position change according to the principle described above, and the absolute moving position recorded therein. The angular deviation ERR _θ between the bonding material M1 and the second bonding material M2 and the lateral error ERR _TD .

It is worth mentioning that the disclosure does not limit the number of position changes that the control element 150 takes after obtaining the starting position. For example, when the spacing between the two marks on the bonding material is small, the control element 150 can obtain more positional changes in the same time without affecting the immediacy of the alignment. In other words, the general knowledge of the embodiments to which the present disclosure is applied can be adapted to the needs based on the teachings of the disclosed embodiments. Line adjustment.

In step S408, the control element 150 adjusts the first moving element 110 according to the angular deviation ERR _θ between the first bonding material M1 and the second bonding material M2 and the lateral error ERR _TD . Specifically, the control element 150 uses the two degrees of freedom of the alignment platform 111 to rotate the first bonding material M1 such that the first trajectory TR1 is parallel to the second trajectory TR2 and laterally translating the first bonding material M1. To align the first track TR1 with the second track TR2. In particular, since the first image capturing component 110 and the second image capturing component 120 of the embodiment of the present disclosure can continuously capture images, even if the alignment angle of the alignment platform 111 is insufficient or the amplitude of the lateral displacement is insufficient, the control component 150 can still analyze from the plurality of first images and the plurality of second images that are continuously captured in the above manner, and continuously adjust the alignment platform 111 until the progress of the first bonding material M1 and the second bonding material M2 The trajectories can be aligned.

In step S409, the control component 150 determines the longitudinal error of the first bonding material M1 and the second bonding material M2 according to the first starting position, the second starting position, the first position change, and the second position change.

For example, it is assumed that the original length of the first bonding material M1 and the second bonding material M2 are the same, but the first bonding material M1 may be elongated by the stress during the moving process, and the second bonding material M2 may also be elongated by the stress during the rolling process, and the extent to which the two are elongated may be different. Therefore, in the present embodiment, the control element 150 estimates the degree of elongation of the two, and the first bonding material M1 and the second bonding material M2 coincide at the midpoint of the bonding.

Referring to FIG. 6 , in the present embodiment, the control element 15 takes the average value of the offsets of the first marks m _1i and the second marks m _2i in the longitudinal direction MD as the first bonding material, for example. The longitudinal error of M1 and the second bonding material M2. It is worth mentioning that, since the pitch of the first mark m _1i is the same as the pitch of the second mark m _2i in this embodiment, the offset of each first mark m _1i and each second mark m _2i in the longitudinal direction MD is taken. The average value is taken as a longitudinal error, but the disclosure is not limited thereto. In other embodiments, longitudinal errors may also be counted based on different computational details, depending on the circumstances.

Then in step S410, the control element 150 adjusts the first moving element 110 in accordance with this longitudinal error. Specifically, the control element 150 of the present embodiment adjusts the long stroke transfer mechanism 112 of the first moving element 110 to make the first bonding material M1 and the second bonding material M2 coincide at the midpoint of the bonding. .

FIG. 7 is a schematic diagram of adjusting longitudinal errors in an embodiment of the present disclosure.

Referring to FIG. 7, the control element 150 calculates, for example, that the longitudinal error of the first bonding material M1 and the second bonding material M2 is ERR _MD . Therefore, the control element 150 can, for example, control the moving speed of the long stroke transfer mechanism 112 or directly move the first bonding material M1 by half of the longitudinal error ERR _MD so that the first bonding material M1 can be attached when the target area TA is attached. It is in the middle of the second bonding material M2.

It should be noted that the embodiment of FIG. 7 illustrates that the second bonding material M2 is elongated longer than the first bonding material M1, but the disclosure is not limited thereto. In other embodiments, the length of the first bonding material M1 may be longer than that of the second bonding material M2, and the control element 150 may also control, for example, the moving speed of the long-travel transfer mechanism 112 or The bonding material M1 moves half of the longitudinal error ERR _MD so that the first bonding material M1 can be attached to the middle of the second bonding material M2 when the target area TA is attached.

In addition, the disclosure does not limit the relative position of the control element 150 when the first bonding material M1 is attached to the second bonding material M2. For example, the control element 150 may adjust the long stroke transfer mechanism 112 according to the longitudinal error ERR _MD calculated by the control element 150 so that the front end of the first bonding material M1 is attached to the front end of the second bonding material M2 or the like. In other words, the disclosure does not limit the longitudinal error of the first bonding material M1 and the second bonding material M2 according to the first starting position, the second starting position, the first position change, and the second position change. Thereafter, the manner in which the long stroke transfer mechanism 112 adjusts the first bonding material M1 is controlled. Those skilled in the art can make adjustments according to their needs.

In summary, the alignment method and the alignment device proposed in the embodiment of the present invention directly capture the first plurality of first stickers in the process of moving the first bonding material to the bonding target area. Image, and analyze the angular deviation, lateral error, and longitudinal error that may occur during the fit. In addition, the embodiment of the present disclosure adjusts the first moving component responsible for moving the first bonding material according to the result of the image analysis when continuously moving the first bonding material, and does not need to go through the indexing mechanism in the whole process, and can be instantaneously Accurate completion of the alignment.

The present disclosure has been disclosed in the above embodiments, but it is not intended to limit the disclosure, and any person skilled in the art can make some changes and refinements without departing from the spirit and scope of the disclosure. The scope of protection of this disclosure is subject to the definition of the scope of the appended claims.

Claims (20)

An alignment method for performing alignment of a first bonding material and a second bonding material, the alignment method comprising: moving the first bonding material toward a target area by using a first moving component; a plurality of first images of the first bonding material, wherein each of the first images includes a first marking; and determining the first bonding material and the first marking according to the first markings An angular deviation between the two patches and a lateral error, and adjusting the first moving element according to the angular deviation and the lateral error. The aligning method of claim 1, further comprising: moving the second tiling material toward the target area by using the second moving element; and photographing the second part during moving the second affixing material a plurality of second images of the composite, wherein each of the second images comprises a second indicia. The aligning method of claim 2, wherein determining the angular deviation between the first affix and the second affixing according to the first markings and the lateral error comprises: determining the a first starting position of the first mark and a plurality of first position changes; determining a second starting position of the second marks and a plurality of second position changes; and according to the first starting position, the second starting position The first position changes and the second position changes determine the angle deviation and the lateral error. For example, the alignment method described in claim 3 of the patent scope further includes: Determining a longitudinal error of the first bonding material and the second bonding material according to the first starting position, the second starting position, the first position changes, and the second position changes; and according to the vertical direction The error adjusts the first moving element. The aligning method of claim 4, wherein the first affixing material is a sheet material, and the second tiling material is a coil material. The aligning method of claim 5, wherein the first moving component comprises a aligning platform and a long-stroke transfer mechanism, wherein the aligning platform is configured to carry the first affixing material, and the long stroke The transfer mechanism is used to move the alignment platform longitudinally. The aligning method of claim 6, wherein adjusting the first moving element according to the angular deviation and the lateral error comprises: rotating the alignment platform according to the angular deviation; and laterally moving the pair according to the lateral error a platform, wherein adjusting the first moving element according to the longitudinal error comprises: moving the long-travel transfer mechanism according to the longitudinal error. The aligning method of claim 1, wherein the step of capturing the first images of the first adhesive comprises: recording an absolute moving position of the first moving component when each of the first images is captured . The aligning method of claim 2, wherein the step of capturing the second images of the second patch comprises: recording an absolute moving position of the second moving component when each of the second images is captured . The aligning method of claim 1, wherein the first affixing material and the second tiling material are coil materials. a aligning device, configured to perform alignment of the first bonding material and the second bonding material, comprising: a first moving component for moving the first bonding material toward the target area; and a first image capturing component, The plurality of first images of the first adhesive are photographed during the movement of the first adhesive component by the first moving component, wherein each of the first images includes a first mark; and a control component is coupled The first moving component and the first image capturing component are configured to determine an angular deviation and a lateral error between the first bonding material and the second bonding material according to the first markings, and according to the angle The deviation and the lateral error adjust the first moving element. The aligning device of claim 11, further comprising: a second moving component coupled to the control component for moving the second bonding material toward the target area; and a second image capturing component And the control component is configured to capture a plurality of second images of the second adhesive during the moving of the second adhesive component, wherein each of the second images includes a second mark . The aligning device of claim 12, wherein the control component is configured to: determine a first starting position of the first markings and a plurality of first position changes; and determine a second of the second markings a starting position and a plurality of second position changes; And determining the angular deviation and the lateral error according to the first starting position, the second starting position, the first position changes, and the second position changes. The aligning device of claim 13, wherein the control component is further configured to: according to the first starting position, the second starting position, the first position changes, and the second position changes, Determining a longitudinal error of the first applicator and the second applicator; and adjusting the first moving element according to the longitudinal error. The alignment device of claim 14, wherein the alignment device is a wafer-to-roll alignment device, wherein the first bonding material is a sheet material, and the second bonding material is a coil material. The alignment device of claim 15, wherein the first moving component comprises: a positioning platform for carrying the first bonding material; and a long-travel transfer mechanism for longitudinally moving the alignment platform. The alignment device of claim 16, wherein the control component is configured to: rotate the alignment platform according to the angular deviation; laterally move the alignment platform according to the lateral error; and move the length according to the longitudinal error Travel transfer mechanism. The aligning device of claim 11, wherein the first moving component further comprises: a first encoder coupled to the control component for indicating an absolute moving position of the first moving component, wherein the The control component is further configured to record the absolute moving position of the first moving component when each of the first images is captured. The aligning device of claim 12, wherein the second moving component further comprises: a second encoder coupled to the control component for indicating an absolute moving position of the second moving component, wherein the The control component is further configured to record the absolute moving position of the second moving component when each of the second images is captured. The aligning device of claim 11, wherein the aligning device is a roll-to-roll aligning device, and the first tiling material and the second tiling material are coil materials.