A COF attaching apparatus and attaching method

Abstract

The application provides a COF attaching device and an attaching method, relates to the technical field of display panel manufacturing, and solves the convenient material changing operation of the COF attaching device for large-size glass substrates by arranging a first attaching unit and a second attaching unit on the back. The support is adjusted in real time by four or more adjusting components to ensure the overall level even if the length of the cross beam is increased to adapt to the attaching stroke of the large-size glass substrate. The pressing unit and the supporting unit form a cooperation of 'first pressing and then adsorbing', which avoids the warping of the glass substrate caused by adsorption and ensures the attaching flatness. The attaching method solves the COF attaching process for different sizes, avoids interference, is compatible with the same specification COF attaching, and improves the efficiency.

Description

TECHNICAL FIELD

[0001] The present application relates to the technical field of display panel manufacturing, in particular to a COF attaching device and an attaching method. BACKGROUND

[0002] In the field of display panel manufacturing, COF (Chip On Film, thin film on chip) is a key component for connecting driving chips and glass substrates, and its attaching precision directly affects the final performance of the display panel. With the continuous development of display technology, glass substrates are evolving towards large size and high precision, and at the same time, in order to meet different display driving needs, two or more different size specifications of COF often need to be mixed and attached on a single panel. This process requirement brings technical challenges to traditional COF attaching equipment.

[0003] For example, insufficient compatibility of multi-specification COF: the traditional single-attaching pressure head structure needs to be frequently replaced, the temperature, pressure and ACF attaching length required by different size COF are different, and the single pressure head is difficult to adjust in real time;

[0004] It is difficult to control the deformation of large-size glass substrates: the attaching area is the terminal area of the glass substrate, but the size of the glass substrate is too large, which causes the terminal area behind to easily warp during attaching, affecting the attaching precision;

[0005] Conflict of multi-attaching unit cooperative work: when the double-attaching heads work in parallel, the risk of motion interference is high, and the traditional mechanical anti-collision scheme reduces the effective working stroke. SUMMARY

[0006] The present application provides a COF attaching device and an attaching method to solve the technical problems of insufficient compatibility of multi-specification COF, difficulty in controlling the deformation of large-size glass substrates, resulting in low attaching precision, and conflict of multi-attaching unit cooperative work in the prior art.

[0007] To solve the above problems, the technical solution adopted by the present application is:

[0008] The present application provides a COF attaching device for attaching different size COF on a large-size glass substrate, comprising: a support, the back of the support is symmetrically provided with a first attaching unit and a second attaching unit, and the front of the support is provided with an alignment unit;

[0009] A pressing unit;

[0010] A supporting unit is arranged below the pressing unit, comprising a supporting platform and a supporting platform driving part, and a plurality of supporting suction cups are arranged on the supporting platform in intervals;

[0011] A glass platform unit;

[0012] A first attaching platform and a second attaching platform are respectively arranged below the first attaching unit and the second attaching unit.

[0013] The glass substrate is placed on the glass platform, the alignment unit collects the position of the glass substrate, the glass platform unit drives the glass substrate to place the part needing to be attached with the COF on the support platform; the pressing unit can press the glass substrate to the support platform in a downward manner to enable the support suction cup to adsorb the glass substrate; the first attaching unit and the second attaching unit can cooperate with each other, simultaneously or alternately, to attach the COF to the glass substrate.

[0014] Further, the support includes two or more columns, a cross beam is fixed on the columns, and an adjusting assembly is connected between the columns and the cross beam, and the adjusting assembly is used to adjust the levelness of the cross beam.

[0015] Further, the pressing unit is arranged between the first attaching unit and the second attaching unit, and includes a pressing driving part, a pressing suction cup driven by the pressing driving part, and a pressing connecting plate fixed on the bottom of the cross beam; the pressing suction cup is in a non-vacuum state.

[0016] Further, the support platform includes a pressing area arranged between the two support suction cups, the pressing suction cup is pressed to the pressing area, and the support suction cup adsorbs the glass substrate.

[0017] Further, the glass platform unit is arranged in front of the support unit, and includes a platform transverse driving part and a glass platform driving part; a platform bottom plate is fixed above the platform transverse driving part, the platform bottom plate is provided with a first sensing area and a second sensing area, and a sensing piece moves in the range of the first sensing area and the second sensing area; when the sensing piece is not sensed, the glass platform can be reset to the original position.

[0018] The attaching method based on the COF attaching equipment includes the following steps:

[0019] S1, glass substrate loading: the glass platform moves to a loading position, the glass substrate is placed on the glass platform by the transfer arm, the glass platform adsorbs the glass substrate and moves to a photographing position of the alignment unit;

[0020] S2, glass photographing: the alignment unit photographs and records the mark points of the glass substrate, the glass platform moves to an attaching position, and the terminal area of the glass substrate is carried on the support platform;

[0021] S3, glass substrate positioning: the pressing suction cup moves along the vertical direction by the pressing driving part and presses the rear of the terminal area, and the support suction cup of the support platform adsorbs the rear of the terminal area;

[0022] S4, attaching operation distribution: the alignment unit photographs and identifies all the COFs of the glass substrate to obtain the sizes of the COFs, and feeds back the different lengths of the COFs to the first attaching unit and the second attaching unit respectively;

[0023] S5, COF attaching: the first attaching unit and the second attaching unit distribute work, the first attaching platform synchronously moves with the first attaching unit, the second attaching platform synchronously moves with the second attaching unit, and the attaching action is completed.

[0024] Further, the first attaching unit and the second attaching unit perform an origin resetting action before attaching different specifications of glass substrates.

[0025] Further, after the first attaching unit and the second attaching unit move to the first origin position and the second origin position, the first attaching unit and the second attaching unit move reversely to the collision machine position, and the maximum stroke of the first attaching unit and the second attaching unit moving to the collision machine position is calculated and recorded as the first distance; the target distance of the first attaching unit is the second distance, and the target distance of the second attaching unit is the third distance; the first attaching unit and the second attaching unit simultaneously perform the attaching action only when the sum of the second distance and the third distance is less than the first distance.

[0026] Further, when the sum of the second distance and the third distance is greater than the first distance, one of the first attaching unit and the second attaching unit preferentially performs the attaching action, and the other waits or moves to the avoiding position until the attaching action of one of the first attaching unit and the second attaching unit ends.

[0027] Compared with the prior art, the present application has the following beneficial effects:

[0028] The present application provides a COF attaching device and an attaching method, which arranges the first attaching unit and the second attaching unit on the back, solves the convenient exchange operation of the COF attaching device for large-size glass substrates, adjusts the horizontal degree of the cross beam in real time through four or more adjusting assemblies, ensures the overall level even if the length of the cross beam is increased to adapt to the attaching stroke of the large-size glass substrate, forms the cooperation of “first pressing and then adsorbing” between the pressing unit and the supporting unit, avoids the warping of the glass substrate due to adsorption, ensures the attaching flatness, solves the COF attaching process for different sizes through the attaching method, avoids interference, is compatible with the same specification COF attaching, and improves the efficiency. BRIEF DESCRIPTION OF DRAWINGS

[0029] In order to more clearly illustrate the technical solutions provided by the present application, the following will be described in detail in combination with embodiments and drawings, and it should be understood that the drawings described below are only some embodiments of the present application, and those skilled in the art can change the drawings under the concept of the present application.

[0030] Figure 1 The side view of the COF attaching device provided by the present application is shown in the figure.

[0031] Figure 2 The rear view of the COF attaching device provided by the present application is shown in the figure.

[0032] Figure 3 An assembly perspective view of an embodiment of the pressing unit provided by the present application;

[0033] Figure 4 An assembly perspective view of an embodiment of the supporting unit provided by the present application;

[0034] Figure 5 An assembly perspective view of an embodiment of the glass platform unit provided by the present application;

[0035] Figure 6 An embodiment view of the COF completed by the glass substrate attachment provided by the present application;

[0036] Figure 7 An embodiment view of the COF completed by the glass substrate attachment provided by the present application;

[0037] Figure 8 An embodiment view of the COF completed by the glass substrate attachment provided by the present application;

[0038] Figure 9 An embodiment view of the COF completed by the glass substrate attachment provided by the present application.

[0039] 1, support; 11, stand; 12, crossbeam; 13, adjusting assembly; 2, first attachment unit; 3, second attachment unit; 4, pressing unit; 41, pressing driving part; 42, pressing suction cup; 5, supporting unit; 51, supporting suction cup; 52, supporting platform; 53, pressing area; 54, supporting platform driving part; 6, glass platform unit; 61, glass platform driving part; 62, glass platform; 63, platform transverse driving part; 64, platform bottom plate; 641, first sensing area; 642, second sensing area; 643, sensing piece; 7, first attachment platform; 8, second attachment platform; 9, alignment unit; 100, glass substrate; 200, COF. DETAILED DESCRIPTION

[0040] Please see Figure 1 , Figure 2The application discloses a COF attaching device for attaching COF 200 of different sizes on a large-size glass substrate 100, which comprises a support 1, a first attaching unit 2 and a second attaching unit 3 symmetrically arranged on the back of the support 1, and a positioning unit 9 arranged on the front of the support 1; a pressing unit 4 arranged between the first attaching unit 2 and the second attaching unit 3, comprising a pressing driving part 41 and a pressing suction cup 42 driven by the pressing driving part 41; a supporting unit 5 arranged below the pressing unit 4, comprising a supporting platform 52 and a supporting platform driving part 54, and a plurality of supporting suction cups 51 arranged on the supporting platform 52 at intervals; a glass platform unit 6 arranged in front of the supporting unit 5, comprising a glass platform 62 for carrying the glass substrate 100, a platform transverse driving part 63 and a glass platform driving part 61; a first attaching platform 7 and a second attaching platform 8, which are respectively arranged below the first attaching unit 2 and the second attaching unit 3. The first attaching unit 2 and the second attaching unit 3 are symmetrically arranged on the back of the support 1, and the positioning unit 9 is arranged on the front of the support 1. The layout skillfully solves the pain points of traditional devices. Because the size of the glass platform 62 corresponding to the large-size glass substrate 100 is large, the glass platform 62 occupies more than half of the area of the upper rack, and the ACF used for attaching needs to be frequently replaced (possibly once per hour in mass production). In the traditional device, the attaching unit is arranged on the front, and because the glass platform 62 is located on the front of the support 1, the large-size glass platform 62 causes the front to have a very large depth. In the traditional way of arranging the attaching unit on the front, the operator needs to at least pass through the glass platform unit 6 to operate when replacing the ACF, which requires the device to be paused to enable the operator to enter the interior to operate, and the efficiency is seriously affected. In comparison, the first and second attaching units are arranged on the back in the device, and the operator can replace the ACF in real time when the device is running, so that non-stop operation is realized, and the production efficiency is greatly improved.

[0041] The support 1 is a basic support structure of the device, which is composed of two or more upright columns 11, the upright columns 11 are fixed with cross beams 12, and the upright columns 11 and the cross beams 12 are connected through adjusting assemblies 13. The adjusting assemblies 13 can accurately adjust the levelness of the cross beams 12, and the adjusting assemblies 13 can be a combination of screws, nuts and bolts. The bolts connect the cross beams 12 and the upright columns 11, and when the horizontal position of the cross beams 12 is too high or too low, the corresponding bolts in the adjusting assemblies 13 are rotated in the forward direction or the reverse direction for adjustment, so that the cross beams 12 are kept in the horizontal state, thereby providing a basis for the stable work of other units. In order to meet the attaching stroke of the first attaching unit 2 and the second attaching unit 3, the length of the cross beams 12 is longer than that of the traditional support 1, and the stability and the levelness are not flat. Four or more adjusting assemblies 13 are arranged to facilitate the adjustment of the overall levelness of the cross beams 12 at any time, thereby ensuring the stability of the cooperative work of the units.

[0042] Please see Figure 3The pressing unit 4 comprises a pressing connecting plate fixed to the bottom of the crossbeam 12, and a pressing driving part 41 fixed to the pressing connecting plate, which can drive the pressing suction cup 42 to press the glass substrate 100 downward. Figure 4 The supporting unit 5 comprises a supporting platform 52 and a supporting platform driving part 54, which can drive the supporting platform 52 to move longitudinally. The supporting platform 52 is provided with a plurality of supporting suction cups 51 at intervals, which are used to adsorb the supporting area of the glass substrate 100, i.e. the rear of the terminal area, so as to enhance the stability of the glass substrate 100 during the attaching. The supporting platform 52 further comprises a pressing area 53 between two supporting suction cups 51, and the pressing suction cup 42 will press the pressing area 53 accurately. After the supporting suction cups 51 adsorb the supporting area of the glass substrate 100 completely, the pressing suction cup 42 is reset.

[0043] Please refer to Figure 5 The glass platform unit 6 comprises a glass platform 62 for carrying the glass substrate 100, and a platform transverse driving part 63 for driving the glass platform 62 to move transversely. The platform transverse driving part 63 is fixed with a platform bottom plate 64, and the platform bottom plate 64 is provided with a glass platform driving part 61 for driving the glass platform 62 to move longitudinally and rotationally. Through the cooperation of these driving parts, the glass platform 62 can move flexibly in multiple directions, so as to meet the alignment and different attaching position requirements between the glass substrate 100 and the COF 200.

[0044] Specifically, the pressing suction cup 42 is in a non-vacuum state, which is used to press the glass substrate 100 first, and then cooperate with the adsorption of the supporting suction cup 51, so as to avoid the local warping of the glass substrate 100 when the supporting suction cup 51 adsorbs, and ensure the flatness of the glass substrate 100. When the glass platform 62 adsorbs the glass substrate 100 and moves to the top of the supporting platform 52, the supporting platform driving part 54 drives the supporting platform 52 to move vertically, so that the terminal area of the glass substrate 100 is placed on the supporting platform 52. At this time, the pressing suction cup 42 is pressed downward by the pressing driving part 41, the supporting suction cup 51 adsorbs the glass substrate 100, and the pressing suction cup 42 is reset, so as to ensure that each supporting suction cup 51 adsorbs the glass substrate 100 firmly.

[0045] Further, the platform bottom plate 64 is further provided with a first sensing area 641, a second sensing area 642 and a sensing piece 643 moving within the range of the two sensing areas. The sensing piece 643 can monitor the movement range of the glass platform 62 in real time. Since the glass platform 62 is large, the position of the glass platform 62 is uncertain when it resets to the original position each time. When the original position is reset, collision or interference with other structures is likely to occur. To ensure that the glass platform 62 resets to the original position each time within a safe and reasonable range, the first sensing area 641 and the second sensing area 642 are respectively arranged on the two sides, that is, when the sensing piece 643 does not sense the first sensing area 641 or the second sensing area 642, the resetting action can be performed, so that the resetting action is performed within a safe range to avoid collision and interference.

[0046] Further, the application also discloses an attaching method based on the COF attaching device.

[0047] S1, the glass platform 62 moves to a receiving position, the conveying arm places the glass substrate 100 on the glass platform 62, and the glass platform 62 adsorbs the glass substrate 100 and moves to a photographing position; specifically, in this step, the glass platform 62 moves to the receiving position under the cooperation of the platform transverse driving part 63 and the glass platform driving part 61, the conveying arm places the glass substrate 100 on the glass platform 62, the glass platform 62 adsorbs the glass substrate 100 through the adsorption device thereof, and then the glass platform 62 moves to the photographing position.

[0048] S2, the alignment unit 9 photographs and records the mark points of the glass substrate 100, the glass platform 62 moves to an attaching position, and the terminal area of the glass substrate 100 is carried on the support platform 52 at the back; specifically, in this step, the alignment unit 9 photographs and records the mark points of the glass substrate 100, analyzes and processes the images obtained by photographing through the controller, and obtains the position information of the glass substrate 100 according to the coordinate positions of the mark points. Then, the glass platform 62 moves to the attaching position, and the terminal area of the glass substrate 100 is carried on the support platform 52 at the back.

[0049] S3, the pressing suction cup 42 moves along the vertical direction and presses the back of the terminal area through the pressing driving part 41, and the support suction cup 51 of the support platform 52 adsorbs the back of the terminal area; specifically, in this step, the pressing driving part 41 drives the pressing suction cup 42 to move along the vertical direction, the pressing suction cup 42 presses the back of the terminal area, that is, the position directly above the pressing area 53 of the support platform 52, the pressing suction cup 42 will accurately press the pressing area 53, and then the support suction cup 51 on the support platform 52 adsorbs the back of the terminal area. Through the double action of pressing first and then adsorbing, the warping phenomenon around the terminal area of the glass substrate 100 is prevented, and the stability of the terminal area of the glass substrate 100 in the attaching process is ensured.

[0050] S4, the alignment unit 9 takes a photo of all COF200 on the glass substrate 100 to identify the size of all COF200, and feeds back the different lengths of COF200 to the first attaching unit 2 and the second attaching unit 3 respectively; specifically, in this step, the alignment unit 9 takes a photo of all COF200 on the glass substrate 100 to accurately obtain the length information of COF200, and feeds back these information to the first attaching unit 2 and the second attaching unit 3 respectively, and the first attaching unit 2 and the second attaching unit 3 work together to allocate work. S, the first attaching unit 2 and the second attaching unit 3 allocate work, the first attaching platform 7 moves synchronously with the first attaching unit 2, and the second attaching platform 8 moves synchronously with the second attaching unit 3, to complete the attaching action. Specifically, in this step, the first attaching unit 2 and the second attaching unit 3 can be provided with COF200 of different lengths, or COF200 of equal length; the first attaching unit 2 and the second attaching unit 3 allocate work according to the received length information of COF200, the first attaching platform 7 moves synchronously with the first attaching unit 2, and the second attaching platform 8 moves synchronously with the second attaching unit 3, to complete the attaching action of COF200 together.

[0051] When the lengths of the attached COF200 are consistent, and the attachment of multi-edge COF200 is performed, as shown in Figure 6 for example, one COF200 is attached on one side, and the lengths are the same, the COF200 is sequentially marked with serial numbers 1 to 10 from left to right, after the COF attaching device performs S1-S4 actions, the first attaching unit 2 and the second attaching unit 3 reset the origin, specifically, the first attaching unit 2 and the second attaching unit 3 first move to the first origin position and the second origin position, which are respectively located at the two sides of the support 1, and then move to the collision position in the opposite direction, in the process of moving to the collision position, the first attaching unit 2 and the second attaching unit 3 can be moved slowly until the maximum stroke of the collision position is reached and recorded as the first distance, that is, D1. When the work starts formally, the first attaching unit 2 starts to attach from the COF200 with serial number 1, and the second attaching unit 3 starts to attach from the COF200 with serial number 2, the distance moved by the first attaching unit 2 each time is the second distance, that is, D2, and the distance moved by the second attaching unit 3 each time is the third distance, that is, D3, in order to avoid interference between the first attaching unit 2 and the second attaching unit 3 during work, the sum of the second distance and the third distance is always less than the first distance, that is, D2+D3<D1; in this way, the work is alternately performed, when the first attaching unit 2 attaches the COF200 with serial number 2, the second attaching unit 3 attaches the COF200 with serial number 7, to ensure the attaching efficiency.

[0052] When the lengths of the attached COF200 are different, as shown in Figure 7As shown, when the COF 200 of different lengths is arranged in the form of ABABAB..., the COF 200 is also marked with serial numbers 1 to 10, and the principle of D2+D3<D1 is also maintained, which can be performed in two ways. When D2+D3<D1 is met, the first attaching unit 2 attaches the COF 200 with serial number 1 at the same time, and the second attaching unit 3 attaches the COF 200 with serial number 2. When the first attaching unit 2 attaches the COF 200 with serial number 3, the second attaching unit 3 attaches the COF 200 with serial number 4, and so on. But if the first attaching unit 2 attaches the COF 200 with serial number 1, and the second attaching unit 3 attaches the COF 200 with serial number 2, D2+D3>D1 occurs, then the first attaching unit 2 operation is preferentially executed, and the second attaching unit 3 moves to the avoidance position to wait. After the first attaching unit 2 attaches the COF 200 with serial number 1, the second attaching unit 3 enters the attaching position to attach the COF 200 with serial number 2, and so on in a cycle until the attachment is completed, avoiding interference.

[0053] When the attached COF 200 lengths are different, such as Figure 8 As shown, when the COF 200 of different lengths is arranged in the form of ABABAB..., the COF 200 is also marked with serial numbers 1 to 10, and the principle of D2+D3<D1 is also maintained, which can be performed in two ways. When D2+D3<D1 is met, the first attaching unit 2 attaches the COF 200 with serial number 1 at the same time, and the second attaching unit 3 attaches the COF 200 with serial number 2. When the first attaching unit 2 attaches the COF 200 with serial number 3, the second attaching unit 3 attaches the COF 200 with serial number 4, and so on. But if the first attaching unit 2 attaches the COF 200 with serial number 1, and the second attaching unit 3 attaches the COF 200 with serial number 2, D2+D3>D1 occurs, then the first attaching unit 2 operation is preferentially executed, and the second attaching unit 3 moves to the avoidance position to wait. After the first attaching unit 2 attaches the COF 200 with serial number 1, the second attaching unit 3 enters the attaching position to attach the COF 200 with serial number 2, and so on in a cycle until the attachment is completed, avoiding interference.

[0054] When the attached COF 200 lengths are different, such as Figure 9As shown, when the COF 200 of different lengths is arranged in the form of AABBAABB..., the COF 200 is also marked with serial numbers 1 to 10, at this time, when D2+D3D1, the first attaching unit 2 attaches the COF 200 with serial number 1, and the second attaching unit 3 attaches the COF 200 with serial number 3, so that the serial numbers of the attached COFs are progressive, and the operation is coherent. However, if the first attaching unit 2 attaches the COF 200 with serial number 1, and the second attaching unit 3 attaches the COF 200 with serial number 3, D2+D3>D1 occurs, then the first attaching unit 2 is given priority, and the second attaching unit 3 moves to the avoidance position to wait, after the first attaching unit 2 finishes the operation of attaching the COF 200 with serial number 1, the second attaching unit 3 enters the attaching position to attach the COF 200 with serial number 3, and the cycle continues until the attachment is completed, so as to avoid interference.

[0055] After the attachment of one side is completed, when the other side of the same glass substrate 100 needs to be attached, the glass platform 62 is rotated by the glass platform driving part 61 to set an angle so that the other side is located at the attachment position, and the above operation is repeated.

[0056] In the above embodiments, the description of each embodiment has its own emphasis, and the parts not described in detail in a certain embodiment can be referred to the related description of other embodiments.

[0057] In the description of the present application, it should be understood that the orientations or positional relationships indicated by the terms "center", "longitudinal", "transverse", "length", "width", "thickness", "upper", "lower", "front", "rear", "left", "right", "vertical", "horizontal", "top", "bottom", "inner", "outer", "clockwise", "counterclockwise", etc. are based on the orientations or positional relationships shown in the drawings, and are only for the convenience of describing the present application and simplifying the description, and therefore cannot be understood as indicating or implying that the devices or elements referred to must have a particular orientation, be constructed and operated in a particular orientation, and therefore cannot be understood as limiting the present application.

[0058] The above is a specific embodiment of the present application, but the protection scope of the present application is not limited thereto, and any person skilled in the art can easily think of various equivalent modifications or replacements within the technical scope disclosed by the present application, and these modifications or replacements should be covered within the protection scope of the present application. Therefore, the protection scope of the present application should be subject to the protection scope of the claims.

Claims

1. A COF bonding apparatus for bonding COFs (200) of different sizes onto a large-size glass substrate (100), comprising: The bracket (1) has a first attachment unit (2) and a second attachment unit (3) symmetrically arranged on the back side, and an alignment unit (9) is provided on the front side of the bracket (1). Pressing unit (4); The support unit (5) is located below the pressing unit (4) and includes a support platform (52) and a support platform drive unit (54). Multiple support suction cups (51) are spaced apart on the support platform (52). Glass platform unit (6); The first attachment platform (7) and the second attachment platform (8) are respectively located below the first attachment unit (2) and the second attachment unit (3); The glass substrate (100) is placed on the glass platform (62). The alignment unit (9) collects the position of the glass substrate (100). The glass platform unit (6) moves the glass substrate (100) so that the part of it that needs to be attached with COF (200) is placed on the support platform (52). The pressing unit (4) can press the glass substrate (100) towards the support platform (52) in a downward manner so that the support suction cup (51) adsorbs the glass substrate (100). The first attachment unit (2) and the second attachment unit (3) can either work together simultaneously or alternately to attach COF (200) to the glass substrate (100).

2. The COF bonding equipment as described in claim 1, characterized in that, The support (1) includes two or more sets of columns (11), and a crossbeam (12) is fixed on the column (11). The column (11) and the crossbeam (12) are connected by an adjustment component (13), which is used to adjust the level of the crossbeam (12).

3. The COF bonding equipment as described in claim 2, characterized in that, The pressing unit (4) is located between the first attaching unit (2) and the second attaching unit (3), and includes a pressing drive unit (41), a pressing suction cup (42) driven by it, and a pressing connecting plate. The pressing connecting plate is fixed to the bottom of the crossbeam (12). The pressing suction cup (42) is in a non-vacuum state.

4. The COF bonding apparatus as described in claim 3, characterized in that, The support platform (52) includes a pressing area (53), which is located between two support suction cups (51). The pressing suction cups (42) press against the pressing area (53), and the support suction cups (51) adsorb the glass substrate (100).

5. The COF bonding apparatus as described in claim 1, characterized in that, The glass platform unit (6) is located in front of the support unit (5) and includes a platform lateral drive part (63) and a glass platform drive part (61). A platform base plate (64) is fixed above the platform lateral drive part (63). The platform base plate (64) is provided with a first sensing area (641) and a second sensing area (642) and a sensor (643) that moves within the range of the first sensing area (641) and the second sensing area (642). When the sensor (643) does not sense anything, the glass platform (62) can be reset to its origin.

6. An attachment method, characterized in that, Using the COF attachment apparatus as described in any one of claims 1-5, the steps include: S1, glass substrate (100) loading: the glass platform (62) moves to the receiving position, the conveying arm places the glass substrate (100) on the glass platform (62), the glass platform (62) adsorbs the glass substrate (100) and moves to the imaging position of the alignment unit (9); S2, Glass photography: The alignment unit (9) takes a picture of the marked points of the glass substrate (100), the glass platform (62) moves to the attachment position, and the terminal area of ​​the glass substrate (100) is mounted on the support platform (52) behind it. S3, Glass substrate (100) positioning: The pressing suction cup (42) moves vertically through the pressing drive unit (41) and presses the rear of the terminal area, and the support suction cup (51) of the support platform (52) adsorbs the rear of the terminal area; S4, Assignment of attachment work: The alignment unit (9) takes pictures of all COFs (200) on the glass substrate (100) to identify the size of all COFs (200), and feeds back the different lengths of COFs (200) to the first attachment unit (2) and the second attachment unit (3). S5, COF (200) Attachment: The first attachment unit (2) and the second attachment unit (3) are assigned to work. The first attachment platform (7) moves synchronously with the first attachment unit (2), and the second attachment platform (8) moves synchronously with the second attachment unit (3) to complete the attachment action.

7. The attachment method as described in claim 6, characterized in that, Before attaching the first attaching unit (2) and the second attaching unit (3) to the glass substrate (100) of different specifications, a point reset operation is performed.

8. The attachment method as described in claim 7, characterized in that, After the first attachment unit (2) and the second attachment unit (3) move to the first origin position and the second origin position, they move in the opposite direction to the impact position, and calculate the maximum travel distance of the first attachment unit (2) and the second attachment unit (3) to the impact position, which is recorded as the first distance; the target distance of the first attachment unit (2) is the second distance, and the target distance of the second attachment unit (3) is the third distance; the first attachment unit (2) and the second attachment unit (3) perform the attachment action simultaneously if and only if the sum of the second distance and the third distance is less than the first distance.

9. The attachment method as described in claim 8, characterized in that, When the sum of the second distance and the third distance is greater than the first distance, one of the first attaching unit (2) and the second attaching unit (3) shall perform the attaching action first, while the other shall wait or move to a clearance position until one of its attaching actions is completed before performing the attaching action.

Images