CN109264403B

CN109264403B - Indexing unit for joining panels and panel joining apparatus including the same

Info

Publication number: CN109264403B
Application number: CN201810310597.8A
Authority: CN
Inventors: 金成根; 金耿东; 李闵泂; 柳亨根
Original assignee: Top Engineering Co Ltd
Current assignee: Top Engineering Co Ltd
Priority date: 2017-07-17
Filing date: 2018-04-09
Publication date: 2021-10-26
Anticipated expiration: 2038-04-09
Also published as: KR20190009024A; CN109264403A; KR102570345B1

Abstract

The invention discloses an index unit for jointing a panel and a panel jointing device comprising the index unit. An index unit for joining panels according to the present invention comprises: a loading pallet having an upper surface on which working pattern holes are formed; an elastic layer coupled to an upper surface of the loading tray to cover the working pattern hole, on which the bonding target object is loaded; a flow path formed through the inside of the loading tray and communicating with the work pattern hole; and a fluid supply device configured to supply a fluid to the flow path, wherein a portion of an upper surface of the elastic layer overlaps the working pattern hole, is made of a material having adhesive force, and protrudes upward when the fluid is supplied to the working pattern hole through the flow path.

Description

Indexing unit for joining panels and panel joining apparatus including the same

Technical Field

The present invention relates to an index unit (index unit) for joining panels and a panel joining apparatus including the index unit, and more particularly, to an index unit for joining panels and a panel joining apparatus including the index unit, which are capable of stably separating a joining target object from a loading pallet using expansion of a diaphragm.

Background

The touch screen device may be provided as an input device in the flat panel display, through which a user can input an instruction to the screen by hand or an object. The touch screen device is disposed on a front surface of the flat panel display and serves to convert a contact position contacted by a user's hand or an object into an electrical input signal. As a method for implementing a touch screen device, a capacitive method, an optical sensing method, a resistive method, and the like are known.

A flat panel display provided with such a touch screen device is manufactured by bonding a cover plate (e.g., tempered glass or an acrylic plate) to a display panel (e.g., a liquid crystal display module or an organic light emitting diode module).

The flat panel display may be applied to a smart phone, a tablet terminal, and the like.

Since smart phones, tablet terminals, and the like are used in various indoor and outdoor environments, there is a need to improve visibility so as to be convenient to use even in outdoor sunlight.

Accordingly, in order to improve visibility, a direct bonding method of bonding a surface of the display panel to the cover plate is more widely used than an air gap bonding method of bonding only an end portion of the display panel to the cover plate.

More specifically, the direct bonding method is implemented as: an optical adhesive (OCR) as an optically transparent bonding layer is disposed between the display panel and the cover plate, and then the display panel is bonded to the cover plate to prevent bubbles from remaining.

Although the direct bonding method can be carried out by various methods, the conventional method has the following problems.

For example, in the case of the vacuum suction method, there is a problem in that marks are generated at the area of vacuum suction, thereby deteriorating quality. In addition, when an Electronic Stability Control (ESC) pallet is used, since the suction force of the pallet on which the bonding target object is located is not strong enough, there is a problem that the protective sheet cannot be easily peeled. In addition, when a pallet having a suction force is used, a pressure pin for separating the protective sheet from the pallet is used, thereby causing a problem of leaving a mark to deteriorate quality.

Accordingly, it is desirable to devise a specific method for solving the above problems.

Disclosure of Invention

Accordingly, an object of the present invention is to solve the above-mentioned problems, and to provide an index unit for joining a panel, which is capable of improving quality and productivity by preventing damage to a joining target object when a separation process is performed after the joining target object is joined, and a panel joining apparatus including the index unit.

According to an aspect of the present invention, there is provided an index unit for engaging a panel, the index unit including: a loading tray having an upper surface on which work pattern holes (work pattern holes) are formed; an elastic layer coupled to an upper surface of the loading tray to cover the working pattern hole, on which the bonding target object is loaded; a flow path formed through the inside of the loading tray and communicating with the work pattern hole; and a fluid supply device configured to supply a fluid to the flow path, wherein a portion of an upper surface of the elastic layer overlaps the working pattern hole, is made of a material having adhesive force, and protrudes upward when the fluid is supplied to the working pattern hole through the flow path.

The bonding target object may be one of a display panel, a cover plate, and a tape.

The upper surface of the elastic layer may include: a viscous portion overlapping the working pattern hole, the viscous portion being formed of a material having a cohesive force and protruding upward when the fluid is supplied to the working pattern hole through the flow path; and a non-adhesive portion disposed at one side of the adhesive portion, the non-adhesive portion having no adhesive force and not protruding upward when the fluid is supplied to the working pattern hole through the flow path.

The adhesive part may include: a first sub-portion having no adhesive force, the first sub-portion including a portion located at an uppermost position of the elastic layer when the fluid is supplied to the working pattern holes through the flow path, and thus expanding the elastic layer most; and a second sub-portion made of a material having adhesive force, the second sub-portion being arranged at one side of the first sub-portion.

The adhesive force may be eliminated from the non-adhesive portion and the first sub-portion by grinding.

A plurality of adhesive portions and a plurality of non-adhesive portions may be provided, and the plurality of adhesive portions and the plurality of non-adhesive portions may be alternately arranged.

The upper surface of the elastic layer may include: a viscous portion overlapping the working pattern hole, the viscous portion being made of a material having adhesive force and contacting a lower surface of the engagement target object when the fluid is supplied to the working pattern hole through the fluid path, and thus swelling the elastic layer to a maximum; and a non-adhesive portion disposed at one side of the adhesive portion, the non-adhesive portion having no adhesive force.

A plurality of work pattern holes may be provided, and the plurality of work pattern holes may be formed on the upper surface of the loading tray at predetermined intervals.

A plurality of flow paths may be provided, and the plurality of flow paths may be respectively communicated with the plurality of working pattern holes.

According to another aspect of the present invention, there is provided a panel joining apparatus including: a first panel conveyor configured to convey a first panel; an index unit on which a first panel conveyed by the first panel conveyor is loaded, the index unit including a first loading pallet configured to linearly reciprocate; a second panel conveyor configured to convey a second panel, the second panel conveyor arranging the second panel in alignment with the first panel loaded on the index unit; a vision unit configured to check whether the first panel and the second panel are aligned with each other; a controller configured to control the second panel conveyor based on the alignment inspection result provided by the vision unit; a first booster configured to receive a control signal from a controller and temporarily engage the first panel and the second panel; a second booster configured to bond the first panel to the second panel under vacuum, wherein the first panel is temporarily bonded to the second panel; and a vacuum chamber configured to perform a process of vacuum-bonding the first panel to the second panel, wherein the index unit further includes a first elastic layer coupled to an upper surface of the first loading pallet and on which the first panel is loaded, a first flow path formed to pass through an inside of the first loading pallet, and a first fluid supply device configured to supply a fluid to the path, and a first working pattern hole is formed on the upper surface of the first loading pallet, the first flow path communicates with the first working pattern hole, and a portion of the upper surface of the first elastic layer longitudinally overlaps the first working pattern hole, is made of a material having adhesive force, and protrudes upward when the fluid is supplied to the first working pattern hole through the first flow path.

When the second panel is joined to the first panel on the first loading pallet and then the second panel is separated together with the first panel, the first fluid supply device may supply fluid to the first flow path to facilitate separation between the first loading pallet and the first panel.

The vision unit may include a first vision unit disposed below the index unit; and a second vision unit disposed above the index unit.

The first vision unit may check whether the first panel is aligned and provide the check result to the second vision unit, and the second vision unit may check whether the second panel is aligned with respect to the first panel based on the check result provided by the first vision unit, and may then provide the check result of whether the second panel is aligned with respect to the first panel to the controller.

The first booster may temporarily join the first panel to the second panel at atmospheric pressure.

The index unit may further include a protective film remover configured to remove the protective film of the first panel.

The index unit may further include: an affixion device for affixing tape to a first panel or a second panel, the affixion device may include: a tape conveyor configured to convey a tape; a sub-index unit on which the tape conveyed by the tape conveyor is loaded, the sub-index unit including a second loading tray configured to linearly reciprocate; a panel conveyor configured to convey the first panel or the second panel and to arrange the first panel or the second panel in alignment with the adhesive tape loaded on the sub-indexing unit; a sub-vision unit configured to check whether the first panel or the second panel is aligned with the adhesive tape; a sub-controller configured to control the panel conveyor based on an alignment inspection result provided by the sub-vision unit; a first sub-booster configured to receive a control signal from the sub-controller and temporarily join the first panel or the second panel to the tape; a second sub-booster configured to bond the first panel or the second panel to the adhesive tape in a vacuum state, wherein the first panel or the second panel is temporarily bonded to the adhesive tape; and a sub-vacuum chamber configured to perform a process of vacuum bonding the first panel or the second panel to the adhesive tape.

The index unit may further include: a second resilient layer coupled to an upper surface of the second loading pallet, the second resilient layer having tape loaded thereon; a second flow path formed through an interior of the second loading pallet; and a second fluid supply configured to supply fluid to the second flow path; also, a second working pattern hole may be formed on the upper surface of the second loading tray, the second flow path may communicate with the second working pattern hole, and a portion of the upper surface of the second elastic layer may longitudinally overlap the second working pattern hole, may be made of a material having adhesive force, and may protrude upward when fluid is supplied to the second working pattern hole through the second flow path.

When the first panel or the second panel is joined to the adhesive tape on the second loading tray and then separated together with the adhesive tape, the second fluid supply device may supply a fluid to the second flow path to facilitate separation between the second loading tray and the adhesive tape.

According to the index unit for joining a panel and the panel joining apparatus including the index unit according to the embodiment of the present invention, an adhesion area between a joining target object and a loading pallet can be reduced, and thus damage to the joining target object can be prevented when a separation process is performed after the joining target object is joined, so that quality and productivity can be improved.

Drawings

Fig. 1 is a schematic view for describing an index unit for engaging a panel according to one embodiment of the present invention.

Fig. 2 is a schematic view for describing an elastic layer of the index unit for coupling panels of fig. 1.

Fig. 3 is a state view of the index unit for engaging a panel of fig. 1 in use.

Fig. 4 is a schematic view for describing an index unit for engaging a panel according to another embodiment of the present invention.

Fig. 5 is a schematic view for describing an elastic layer of the index unit for coupling panels of fig. 4.

Fig. 6 is a state view of the index unit for engaging a panel of fig. 4 in use.

Fig. 7 is a block diagram schematically listing the constituent elements of a panel bonding apparatus according to another embodiment of the present invention in the order of the process.

Fig. 8 and 9 are schematic views for describing the panel bonding apparatus of fig. 7.

Fig. 10 is a diagram for describing a method for aligning panels in the panel joining apparatus of fig. 7.

Fig. 11 and 12 are diagrams for describing a panel bonding process in the panel bonding apparatus of fig. 7.

Fig. 13 is a schematic view for describing a panel bonding apparatus according to still another embodiment of the present invention.

Fig. 14 is a block diagram schematically listing the constituent elements of a panel bonding apparatus according to still another embodiment of the present invention in the order of the process.

Fig. 15 is a schematic view for describing the panel joining apparatus of fig. 14.

Fig. 16 is a schematic view for describing a panel bonding apparatus according to still another embodiment of the present invention.

Detailed Description

The above and other objects, features and advantages of the present invention will be described in detail below with reference to the accompanying drawings, and thus, the technical spirit of the present invention can be easily realized by those skilled in the art. Meanwhile, in the following description of the present invention, if a detailed description of a known related art is determined to hide the gist of the present invention, a detailed description thereof may be omitted. Preferred embodiments according to the present invention will be described in detail below with reference to the accompanying drawings. In the drawings, the same reference numerals denote the same or similar constituent elements.

An index unit for engaging panels according to an embodiment of the present invention will be described below with reference to fig. 1 to 3.

Fig. 1 is a schematic view for describing an index unit for engaging a panel according to an embodiment of the present invention. Fig. 2 is a schematic view for describing an elastic layer of the index unit for coupling panels of fig. 1. Fig. 3 is a state view of the index unit for engaging a panel of fig. 1 in use.

An index unit 150-1 for engaging a panel according to one embodiment of the present invention may include a loading pallet 155, an elastic layer 456, a flow path 459, and a fluid supply device 460.

For reference, the index unit 150-1 may be configured in a linear type (i.e., a straight line type), and the loading tray 155 provided at one end of the index unit 150-1 may reciprocate along a straight line (not shown). That is, a straight line provided in the index unit 150-1 is used to guide the loading tray 155 so that the loading tray 155 can move to an area in which each process is performed.

For convenience of explanation, in the embodiment of the present invention, an example will be described in which the index unit 150-1 includes the loading stage 155, the elastic layer 456, the flow path 459, and the fluid supply device 460.

The work pattern holes 156 may be formed on the upper surface of the loading tray 155.

In particular, the working pattern holes 156 may be formed on an upper surface of the loading stage 155, and the flow path 459 may be formed inside the loading stage 155 to pass therethrough so as to communicate with the working pattern holes 156.

Here, a plurality of work pattern holes 156 may be provided, and a plurality of

work pattern holes

156a, 156b, and 156c may be formed on the upper surface of the loading tray 155 by being spaced apart at fixed intervals.

Alternatively, a plurality of working

pattern holes

156a, 156b, and 156c may be formed on the upper surface of the loading pallet 155 by being spaced apart at different intervals, not fixed intervals.

Meanwhile, a plurality of flow paths 459 may be provided, and the plurality of

flow paths

459a, 459b, and 459c may communicate with the plurality of

work pattern holes

156a, 156b, and 156c, respectively.

Also, the elastic layer 456 may be coupled to an upper surface (or an outer circumferential surface) of the loading tray 155, and the engagement target object BT may be loaded on the elastic layer 456. In addition, the loading tray 155 can reciprocate linearly along the above-described straight line (not shown).

Here, the bonding target object BT may be any one of a display panel (e.g., a liquid crystal display module or an organic light emitting diode module), a cover plate (e.g., a tempered glass or an acrylic plate), and an adhesive tape (e.g., an optical adhesive (OCA)).

The elastic layer 456 is coupled to an upper surface of the loading stage 155 to cover the working pattern holes 156, and the engagement target object BT may be loaded on the elastic layer 456.

Also, the elastic layer 456 may be made of an elastic material (e.g., a deformable membrane), one side of the elastic layer 456 may be in contact with the upper surface of the loading stage 155, and the engagement target BT may be loaded on the other side of the elastic layer 456.

In addition, a portion of the upper surface of the elastic layer 456 may overlap the working pattern holes 156 in the longitudinal direction (i.e., the vertical direction), and may be made of a material having adhesive force (e.g., ASC having strong adhesive force), and may protrude upward when a fluid (e.g., air) is supplied to the working pattern holes 156 through the flow path 459.

Specifically, the upper surface of the elastic layer 456 may longitudinally overlap the working pattern holes 156, and may include a tacky part 457 and a non-tacky part 458, the tacky part 457 being made of a material having a tacky force, the tacky part 457 protruding upward when a fluid is supplied to the working pattern holes 156 through the flow path 459; the non-adhesive portion 458 is disposed at one side of the adhesive portion 457 without having adhesive force, and the non-adhesive portion 458 does not protrude upward when the fluid is supplied to the working pattern holes 156 through the flow path 459.

Also, the upper surface of the elastic layer 456 may include a redundant portion (edge portion) in addition to the adhesive portion 457 and the non-adhesive portion 458, and alternatively, the upper surface of the elastic layer 456 may be configured to have only the adhesive portion 457 and the non-adhesive portion 458 without having a redundant portion.

Here, the bonding target object BT loaded by the sticky portion 457 may be fixed so as not to be moved.

Also, the adhesive part 457 may have a width larger than that of the non-adhesive part 458, but the present invention is not limited thereto.

That is, the adhesive part 457 and the non-adhesive part 458 may have the same width and the same length, but they may also each have a different width and length.

Also, as shown in fig. 2, a plurality of adhesive parts 457 and a plurality of non-adhesive parts 458 may be provided, and the plurality of

adhesive parts

457a, 457b, 457c and the plurality of

non-adhesive parts

458a, 458b, 458c, 458d may be alternately arranged.

Alternatively, the plurality of

adhesive parts

457a, 457b, 457c may have a different width and length from the plurality of

non-adhesive parts

458a, 458b, 458c, 458d, and the plurality of

adhesive parts

457a, 457b, 457c may be arbitrarily arranged by being mixed with the plurality of

non-adhesive parts

458a, 458b, 458c, 458d instead of being alternately arranged therewith.

That is, the adhesive area of the upper surface of the elastic layer 456 is reduced, so that when the bonding target object BT is separated from the elastic layer 456, the bonding target object BT can be prevented from being damaged due to the adhesive force of the upper surface of the elastic layer 456.

Meanwhile, as described above, the tacky part 457 may be made of a material having a tack force, but, as shown in fig. 3, the tacky part 457 may further include first sub-parts 457a ', 457b ', 457c ' and second sub-parts 457a ", 457 b", 457c ", the first sub-parts 457a ', 457b ', 457c ' have no tack force and include the uppermost part of the elastic layer 456 when the fluid is supplied to the working pattern holes 156 through the flow path 459 and thus the elastic layer 456 is maximally inflated, and the second sub-parts 457 a", 457b ", 457 c" are made of a material having a tack force and are respectively disposed at one side of the first sub-parts 457a ', 457b ', 457c '.

That is, when the sticky portion 457 of the elastic layer 456 swells and protrudes upward due to the fluid supplied to the flow path 459, since there is no adhesive force on the first sub-portions 457a ', 457b ', 457c ' that are in contact with the joining target object BT until the last moment, the sticky portion 457 can be easily separated from the joining target object BT, so that the joining target object BT can be effectively prevented from being damaged.

For reference, the adhesive force may be eliminated from the non-adhesive portion 458 and the first sub-portions 457a ', 457b ', 457c ' by grinding.

Meanwhile, the flow path 459 may be formed to pass through the inside of the loading stage 155 and may communicate with the working pattern hole 156, and the fluid supply device 460 may supply fluid to the flow path 459.

In particular, the flow path 459 is longitudinally formed inside the loading stage 155 and extends to communicate with the working pattern hole 156 formed on the upper surface of the loading stage 155.

Also, when another bonding target object (e.g., a cover plate) is bonded to the bonding target object BT (e.g., a display panel) loaded on the elastic layer 456 by an adhesive tape, and then, is separated from the layer 456 together with the bonding target object BT, the fluid supply device 460 may supply the fluid to the flow path 459, and the adhesive portion 457 of the elastic layer 456 may be expanded to protrude upward due to the supplied fluid.

Here, since the distal end of the flow path 459 is spaced from the upper surface of the elastic layer 456 (i.e., the surface of the elastic layer that is in contact with the engagement target object BT), when another engagement target object is temporarily engaged to the engagement target object BT in an aligned state with the engagement target object BT under atmospheric pressure, the other engagement target object is conveyed to the vacuum chamber 400 of fig. 8 and engaged to the engagement target object BT and separated for unloading together with the engagement target object BT, so even if fluid is supplied through the flow path 459, no mark is left on the engagement target object BT.

Also, the supplied air is collected at the distal end of the flow path 459, and thus, pressure is applied to the elastic layer 456, so that the adhesive part 457 of the elastic layer 456 is expanded in the form of a rounded curved surface to protrude upward.

As described above, since only the adhesive portion 457 protruding upward is made of a material having adhesive force, a contact area between the bonding target object BT and the upper surface of the elastic layer 456 is reduced, thereby making it possible to easily separate the bonding target object BT from the elastic layer 456.

An index unit for engaging panels according to another embodiment of the present invention will be described with reference to fig. 4 to 6.

Fig. 4 is a schematic view for describing an index unit for engaging a panel according to another embodiment of the present invention. Fig. 5 is a schematic view for describing an elastic layer of the index unit for coupling panels of fig. 4. Fig. 6 is a state view of the index unit for engaging a panel of fig. 4 in use.

For reference, in fig. 4 to 6, differences from fig. 1 to 3 will be mainly described.

Referring to fig. 4 to 6, it can be seen that an index unit 150-2 for coupling panels according to another embodiment of the present invention is different from the index unit 150-1 for coupling panels of fig. 1 in the configuration of an elastic layer.

Specifically, as shown in fig. 5, the upper surface of the elastic layer 456 overlaps the working pattern holes 156 and is made of a material having adhesive force, and may include a tacky part 457 (i.e., 457a, 457b, 457c) and a non-tacky part 458 (i.e., 458a, 458b, 458c, 458d), the tacky part 457 being in contact with the lower surface of the engagement target object BT when fluid is supplied to the working pattern holes 156 through the flow path 459 and the elastic layer 456 is thereby inflated maximally, the non-tacky part 458 being respectively disposed at one side of the tacky part 457 and having no adhesive force.

That is, unlike fig. 2, it can be seen in fig. 5 that when the elastic layer 456 is maximally expanded, only a portion in contact with the lower surface of the engagement target object BT corresponds to the adhesive portion 457, and the remaining upper surface of the elastic layer 456 corresponds to the non-adhesive portion 458.

Accordingly, the adhesive portion 457 of fig. 5 may have a width that is less than the width of the non-adhesive portion 458 and less than the width of the adhesive portion of fig. 2.

Also, the sticky portion 457 of fig. 5 may include first sub-portions 457a ', 457b ', 457c ' having no adhesive force and second sub-portions 457a ", 457 b", 457c "made of a material having adhesive force, the first sub-portions 457a ', 457b ', 457c ' include the uppermost portions of the elastic layer 456 when fluid is supplied to the working pattern holes 156 through the flow path 459 and thus the elastic layer 456 is maximally swollen, and the second sub-portions 457 a", 457b ", 457 c" are disposed at one side of the first sub-portions 457a ', 457b ', 457c ', respectively. As described above, the index unit 150-2 for coupling panels according to another embodiment of the present invention includes the adhesive part 457 having a width smaller than that of the index unit 150-1 for coupling panels according to one embodiment of the present invention, so that the elastic layer 456 can be more easily separated from the coupling target object BT.

An index unit for engaging panels according to still another embodiment of the present invention will be described with reference to fig. 7 to 12.

Fig. 7 is a block diagram schematically listing the constituent elements of a panel bonding apparatus according to another embodiment of the present invention in the order of the process. Fig. 8 and 9 are schematic views for describing the panel bonding apparatus of fig. 7. Fig. 10 is a diagram for describing a method for aligning panels in the panel joining apparatus of fig. 7. Fig. 11 and 12 are diagrams for describing a panel bonding process in the panel bonding apparatus of fig. 7.

For reference, the index unit 150 of the panel bonding apparatus 1 of fig. 7 may include one of the index units 150-1 and 150-2 of fig. 1 and 4, but for convenience of explanation, an example including the index unit 150-1 of fig. 1 will be described.

Referring first to fig. 7 to 9, a panel bonding apparatus 1 according to another embodiment of the present invention may include a first panel transporter 100, a frame 120, an index unit 150, a second panel transporter 200, a vision unit 250, a controller 270, a first pressurizer 300, a second pressurizer 350, and a vacuum chamber 400.

For reference, in the panel bonding apparatus 1 according to another embodiment of the present invention, an example of a case where the second panel P2 is input in a state where a tape (e.g., OCA) is bonded to the second panel P2 will be described. Alternatively, the first panel P1 may be input into the panel bonding apparatus 1 in a state where the tape is bonded to the first panel P1 (instead of the second panel P2), but, for convenience of explanation, in the present embodiment, an example where the second panel P2 is input into the panel bonding apparatus 1 in a state where the tape is bonded to the second panel P2 will be described.

The first panel conveyer 100 may convey the first panel P1.

Specifically, the first panel transporter 100 may transport the first panel P1 to the index unit 150. That is, when the operator loads the first panel P1 onto the first panel conveyor 100 in the direction a, the first panel conveyor 100 may move to the loading pallet of the index unit 150 to load the first panel P1 onto the loading pallet 155.

Here, the first panel P1 may be a display panel, such as a liquid crystal display module or an organic light emitting diode module. Also, the first panel P1 loaded on the first panel conveyer 100 may be a display panel from which a protective film may be removed. The removal of the protective film may be performed by an operator or other equipment.

For reference, the panel joining apparatus 1 of the present invention may not include the first panel conveyor 100. In this case, the operator may load the first panel P1 directly onto the loading pallet 155 of the index unit 150. For convenience of explanation, an example in which the panel joining apparatus 1 includes the first panel conveyor 100 will be described in the present invention.

The frame 120 is a kind of table, and each constituent element of the panel bonding apparatus 1 is mounted on the frame 120.

The first panel P1 conveyed by the first panel conveyor 100 may be loaded onto the index unit 150, and a loading pallet 155 configured to linearly reciprocate may be provided in the index unit 150.

Specifically, the index unit 150 may be configured in a linear type (i.e., a linear type), and the loading tray 155 provided at one end of the index unit 150 may be linearly reciprocated along the straight line 157. That is, the straight line 157 provided in the index unit 150 serves to guide the loading tray 155 to move to an area where each process is performed.

Here, an operation method of the index unit 150 and a panel bonding process performed therethrough will be described below.

First, when the loading pallet 155 is located at the start pallet of the straight line 157 (i.e., at the end of the straight line 157 around the operator), the first panel P1 is input to be loaded onto the loading pallet 155, and the loading pallet 155 is linearly moved along the straight line 157; when the loading pallet 155 reaches the temporary bonding area PB (temporary bonding is the same as pre-bonding), the temporary bonding process is performed. After the temporary bonding process is performed, when the loading pallet 155 is linearly moved along the straight line 157 into the vacuum chamber 400, the vacuum bonding process is performed; when the vacuum bonding process is completed, the loading pallet 155 returns to the original starting pallet (i.e., the starting pallet of the straight line 157) in a state of loading the bonded product. When the loading pallet 155 returns to the beginning pallet of line 157, the engaged product may be unloaded.

By the linear reciprocating movement and loading structure of the index unit 150, the structure of the panel bonding apparatus 1 can be simplified, and by simplifying the structure of the panel bonding apparatus 1, the installation space can be reduced and the cost can be reduced.

For reference, a detailed description of the structure and constituent components of the index unit 150 will be explained below.

The second panel transporter 200 may transport the second panel P2 and may arrange the second panel P2 to be aligned with the first panel P1 loaded on the index unit 150.

Here, the second panel P2 may be a cover plate, such as tempered glass or acrylic plate. Also, the second panel P2 loaded on the second panel conveyer 200 may be a cover sheet from which a protective film is removed and on which an adhesive tape is bonded to one surface of the cover sheet. The removal of the protective film may be performed by an operator or other equipment.

Specifically, the second panel conveyor 200 may convey the second panel P2 to be aligned with the first panel P1. That is, when the operator loads the second panel P2 onto the second panel transporter 200 in the direction B, the second panel transporter 200 moves to the temporary joining area PB, and the second panel P2 is arranged in alignment facing the first panel P1 loaded on the loading tray 155 of the index unit 150 in the temporary joining area PB.

Subsequently, a process of temporarily bonding the first panel P1 to the second panel P2 is performed, and as described above, an adhesive tape may be bonded to the second panel P2 input to the temporary bonding process.

The second panel conveyor 200 may move horizontally and vertically to arrange the second panel P2 to be aligned facing the first panel P1.

That is, although not shown in the drawings, the second panel conveyer 200 may include a horizontal driver and a vertical driver, and each of the horizontal driver and the vertical driver may be a linear moving mechanism, such as an actuator operated by hydraulic pressure or pneumatic pressure, a linear motor, or a ball screw device.

Also, the second panel conveyor 200 may receive a control signal from the controller 270, and may arrange the second panel P2 to be aligned facing the first panel P1.

The vision unit 250 may check whether the first panel P1 and the second panel P2 are aligned with each other.

In particular, the visual unit 250 may include a first visual unit 260 and a second visual unit 255.

The first vision unit 260 may be a lower vision unit disposed below the index unit 150, and may check whether the first panel P1 is aligned and provide the check result to the second vision unit 255.

That is, the first vision unit 260 may check whether the first panel P1 conveyed by the first panel conveyor 100 is self-aligned, and provide the check result to the second vision unit 255.

The second vision unit 255 may be an upper vision unit disposed above the index unit 150, and may check whether the second panel P2 is aligned with the first panel P1 based on the check result provided by the first vision unit 260, and may then provide the check result as to whether the second panel P2 is aligned with the first panel P1 to the controller 270.

That is, the second vision unit 255 may check whether the second panel P2 is aligned with the first panel P1 based on the current alignment state of the first panel P1 to allow the second panel P2 to be aligned with the first panel P1. Meanwhile, when the second vision unit 255 provides the inspection result to the controller 270, the controller 270 may control the second panel transporter 200 based on the received inspection result. Accordingly, the second panel transporter 200 may move the second panel P2 in a horizontal or vertical direction according to a control signal provided by the controller 270, thereby aligning the second panel P2 with the first panel P1.

Now, a method for aligning the first panel P1 with the second panel P2 will be described below.

As described above, the second vision unit 255 may check whether the second panel P2 is aligned with the first panel P1 based on the check result provided by the first vision unit 260.

In this regard, in order to check whether the first panel P1 and the second panel P2 are accurately aligned with each other, a reference line may be defined at each of the first panel P1 and the second panel P2. Here, the reference line may be a conductive line of a circuit formed on the display panel, a contour line formed of a material such as liquid crystal formed on the display panel, or a line formed of pixels (located at an outer position among pixels formed on the display panel). As another example, the reference line may be a line formed by a pattern formed on the cover plate, or a contour line formed by a material applied to the cover plate. As yet another example, the reference line may be an outer contour (i.e., edge) of the first panel P1 or the second panel P2. As yet another example, the reference line may be any imaginary line formed by the second vision unit 255 capturing at least one corner or edge of the first panel P1 and the second panel P2, the captured corner or edge being defined as a reference. As yet another example, the reference line may be a line actually drawn on at least one of the first panel P1 and the second panel P2.

Specifically, referring to fig. 10, an example is shown in which the contour line (i.e., edge) of the first panel P1 is defined as the reference line of the first panel P1 and the line R actually disposed on the second panel P2 is defined as the reference line of the second panel P2.

In this way, when reference lines are defined at the first panel P1 and the second panel P2, respectively, it is possible to check whether the first panel P1 and the second panel P2 are accurately aligned with each other by checking a relationship between two reference lines of the first panel P1 and the second panel P2.

For example, when it is determined whether the two reference lines coincide with each other and it is determined that the two reference lines coincide with each other, it may be determined that the first panel P1 and the second panel P2 are aligned with each other. Alternatively, when the interval or the angle between the two reference lines is measured and is within a predetermined range, it may be determined that the first panel P1 and the second panel P2 are aligned with each other.

As another example, it may be checked whether the first and second panels P1 and P2 are accurately aligned with each other by providing alignment marks (not shown) on the first and second panels P1 and P2, respectively, and checking whether the alignment marks coincide with each other.

In this way, when the first panel P1 and the second panel P2 are aligned with each other, a temporary bonding process may be performed.

Referring back to fig. 7 to 9, the controller 270 may control the second panel conveyor 200 based on the alignment check result provided by the vision unit 250.

Specifically, the controller 270 may control the second panel transporter 200 based on the alignment check results for the first and second panels P1 and P2 provided by the second vision unit 255. That is, the controller 270 may provide a control signal to the second panel transporter 200 based on the alignment check result between the first panel P1 and the second panel P2.

The first booster 300 may receive a control signal from the controller 270 and may temporarily engage the first panel P1 to the second panel P2.

Here, the temporary joining process is a process in which a state before the actual joining is performed is achieved immediately after the first panel P1 and the second panel P2 are aligned with each other in an atmospheric pressure state.

The second pressurizer 350 may bond the first panel P1 to the second panel P2 under a vacuum state, wherein the first panel P1 is temporarily bonded to the second panel P2.

Specifically, the vacuum bonding process of the second booster 350 may be performed in the vacuum chamber 400.

Here, the vacuum bonding process is a process of bonding the first panel P1 to the second panel P2 by the second pressurizer 350, wherein the first panel P1 is temporarily bonded to the second panel P2 and aligned with the second panel P2 in a vacuum state.

For reference, the vacuum chamber 400 may be connected to a vacuum pump 390 through a connection pipe 370. That is, a vacuum may be formed in the sealed space within the vacuum chamber 400 by the operation of the vacuum pump 390. Accordingly, the process of bonding the first panel P1 to the second panel P2 may be performed in a vacuum environment.

A process of bonding the first panel P1 to the second panel P2 will be described below with reference to fig. 11 and 12.

For reference, a process of temporarily bonding the first panel P1 to the second panel P2 under atmospheric pressure and a process of bonding the first panel P1 to the second panel P2 under a vacuum state may be performed in a conventional loading pallet, except for the following embodiments, and thus, a detailed description thereof will be omitted.

In addition, as described above, the index unit 150 shown in fig. 11 and 12 has the same structure and the same constituent elements as the index unit 150-1 of fig. 1, and thus, the index unit 150 can have the same operational effects as the index unit 150-1. However, in the case of repeated explanation, the following will be briefly described.

Specifically, indexing unit 150 may include an elastomeric layer 456, a flow path 459, and a fluid supply 460 in addition to linear line 157 and loading gantry 155 as described above.

That is, the index unit 150 may further include: an elastic layer 456 coupled to an upper surface of the loading pallet 155 and loading the first panel P1 thereon; flow paths 459 (i.e., 459a, 459b, 459c) formed through the interior of the load pallet 155; and a fluid supply device 460 configured to supply fluid to the flow path 459.

Also, working pattern holes 156 (i.e., 156a, 156b, 156c) may be formed on the upper surface of the loading pallet 155, the flow paths 459 may communicate with the working pattern holes 156, and

portions

457a, 457b, 457c of the upper surface of the elastic layer 456 may longitudinally overlap, may be made of a material having adhesive force, and may protrude upward when fluid is supplied to the working pattern holes 156 through the flow paths 459.

In this way, the adhesive area of the upper surface of the elastic layer 456 is reduced, so that when the first panel P1 is separated from the elastic layer 456, the first panel P1 may be prevented from being damaged due to the adhesive force of the upper surface of the elastic layer 456.

Alternatively, as shown in fig. 12, the

portions

457a, 457b, 457c of the upper surface of the elastic layer 456 may include first sub-portions 457a ', 457b ', 457c ' having no adhesive force and second sub-portions 457a ", 457 b", 457c "made of a material having adhesive force, the first sub-portions 457a ', 457b ', 457c ' respectively protrude to uppermost ends when the fluid is supplied to the working pattern holes 156 through the flow path 459, and the second sub-portions 457 a", 457b ", 457 c" are respectively disposed at lower ends of the first sub-portions 457a ', 457b ', 457c '.

Accordingly, when the

portion

457a, 457b, or 457c of the upper surface of the elastic layer 456 is expanded by the fluid supplied to the flow path 459 and protrudes respectively and upwardly, since there is no adhesive force on the first sub-portions 457a ', 457 b', 457c 'coming into contact with the first panel P1 until the last moment, the first sub-portions 457 a', 457b ', 457 c' may be more easily separated from the first panel P1, and thus the damage to the first panel P1 may be more effectively prevented.

In addition, when the second panel P2 is joined to the first panel P1 and then separated together with the first panel P1 on the loading pallet 155, the fluid supply device 460 may facilitate separation between the loading pallet 155 and the first panel P1 by supplying fluid to the flow path 459.

A panel joining apparatus according to still another embodiment of the present invention will be described later with reference to fig. 13.

Fig. 13 is a schematic view for describing a panel bonding apparatus according to still another embodiment of the present invention. For reference, the panel bonding apparatus 2 according to still another embodiment of the present invention is the same as the panel connecting apparatus 1 according to another embodiment of the present invention except for some constituent components and operational effects, and thus, differences will be mainly described below.

Referring to fig. 13, unlike the panel bonding apparatus 1 according to another embodiment of the present invention, the panel bonding apparatus 2 according to still another embodiment of the present invention may further include an attaching apparatus 1001, the attaching apparatus 1001 being configured to perform an attaching operation of attaching the tape T to the first panel P1 or the second panel P2.

The attaching apparatus 1001 may include: a tape conveyor (not shown) configured to convey the tape T; a sub-indexing unit 1150 on which the adhesive tape T conveyed by the tape conveyor is loaded and which is provided with a loading tray 1155, the loading tray 1155 being configured to linearly reciprocate; a panel transporter 1200 configured to transport the first panel P1 or the second panel P2 and to arrange the first panel P1 or the second panel P2 in alignment with the tape T loaded on the sub-index unit 1150; sub-vision units 1255 and 1260 configured to check whether the first panel P1 or the second panel P2 is aligned with the tape T; a sub-controller (not shown) configured to control the panel conveyor 1200 based on the alignment check results provided by the sub-vision units 1255 and 1260; a first sub-booster (not shown) configured to receive a control signal from the sub-controller and temporarily engage the first panel P1 or the second panel P2 to the tape T; a second sub-booster (not shown) configured to bond the first panel P1 or the second panel P2 to the tape T in a vacuum state, wherein the first panel P1 or the second panel P2 is temporarily bonded to the tape T; and a sub-vacuum chamber 1400 configured to perform a process of vacuum-bonding the first panel P1 or the second panel P2 to the tape T.

The process of bonding the first panel P1 or the second panel P2 to the tape T, which is performed in the attaching apparatus 1001, is performed by the same process as the process of bonding the first panel P1 to the second panel P2 described above, and thus a detailed description thereof will be omitted.

In addition, the sub-indexing unit 1150 has the same structure and the same function as the indexing unit 150 of fig. 11 and 12 except that the loaded target object is replaced with the tape T, and thus a detailed description thereof will be omitted.

Meanwhile, when the first panel P1 is joined to the tape T by the attaching device 1001, the first panel P1 joined to the tape T may be provided to the loading tray 155 of the index unit 150. Alternatively, when the second panel P2 is joined to the tape T by the attaching device 1001, the second panel P2 joined to the tape T may be provided to the second panel conveyer 200.

A panel joining apparatus according to still another embodiment of the present invention will be described later with reference to fig. 14 and 15.

Fig. 14 is a block diagram schematically listing the constituent elements of a panel bonding apparatus according to still another embodiment of the present invention in the order of the process. Fig. 15 is a schematic view for describing the panel joining apparatus of fig. 14.

For reference, the panel bonding apparatus 3 according to still another embodiment of the present invention is the same as the panel bonding apparatus 1 according to another embodiment of the present invention except for some constituent components and operational effects, and thus differences will be mainly described.

Referring to fig. 14 and 15, unlike the panel bonding apparatus 1 of fig. 7, the panel bonding apparatus 3 according to still another embodiment of the present invention may further include a protective film remover 180.

Since the protective film is removed from the first panel P1 or the second panel P2 when the first panel P1 or the second panel P2 is initially input, the protective film remover 180 is not separately included in the panel bonding apparatus 1 of fig. 7. In this case, as described above, the operator or another apparatus removes the protective film of the first panel P1 or the second panel P2.

However, in the panel joining apparatus 3 according to still another embodiment of the present invention, when an operator loads a first panel P1 onto the first panel conveyor 100 in the direction a, the first panel conveyor 100 may move to the loading pallet 155 of the index unit 150 to load the first panel P1 onto the loading pallet 155.

In a state where the first panel P1 is loaded, the loading tray 155 of the index unit 150 is moved to the protective film remover 180 along the straight line 157, and the protective film is removed from the first panel P1 by the protective film remover 180. The second panel P2 may be input in the direction B by an operator in a state where the protective film is removed from the second panel P2 by the operator or other devices.

Alternatively, even in the case of the second panel P2, the protective film may be automatically removed from the second panel P2 by a separate protective film remover (not shown), but, for convenience of explanation in this application, only an example of a process of removing the protective film of the first panel P1 by the protective film remover 180 will be described.

As described above, since the panel bonding apparatus 3 according to still another embodiment of the present invention can automatically remove the protective film by the protective film remover 180 even if the first panel P1, from which the protective film is not removed, is input to the index unit 150 by the operator, the burden on the operator can be reduced, and thus the work efficiency can also be improved.

A panel joining apparatus according to still another embodiment of the present invention will be described with reference to fig. 16.

Fig. 16 is a plan view schematically showing a panel joining apparatus according to still another embodiment of the present invention.

For reference, the panel bonding apparatus 4 according to still another embodiment of the present invention is the same as the panel bonding apparatus 3 according to still another embodiment of the present invention except for some constituent components and effects, and thus differences will be mainly described.

Referring to fig. 16, unlike the panel bonding apparatus 3 according to still another embodiment of the present invention, the panel bonding apparatus 4 according to still another embodiment of the present invention may further include an attaching apparatus 1002, the attaching apparatus 1002 being configured to perform a process of bonding the first panel P1 or the second panel P2 to the tape T.

Meanwhile, the panel bonding apparatus 4 may further include a protective film remover 180 configured to remove a protective film of the panel and a sub-protective film remover 1180 configured to remove a protective film of the tape T.

Specifically, the attaching device 1002 may include: a tape conveyor (not shown) configured to convey the tape T; a sub-indexing unit 1150 on which the tape T conveyed by the tape conveyor is loaded and which includes a loading tray 1155, the loading tray 1155 being configured to linearly reciprocate; a sub protective film remover 1180 configured to remove a protective film from the adhesive tape T loaded on the sub index unit 1150; a panel transporter 1200 configured to transport the first panel P1 or the second panel P2 and to arrange the first panel P1 or the second panel P2 in alignment with the tape T loaded on the sub-index unit 1150; sub-vision units 1255 and 1260 configured to check whether the first panel P1 or the second panel P2 is aligned with the tape T; a sub-controller (not shown) configured to control the panel conveyor 1200 based on the alignment check results provided by the sub-vision units 1255 and 1260; a first sub-booster (not shown) configured to receive a control signal from the sub-controller and temporarily engage the first panel P1 or the second panel P2 to the tape T; a second sub-booster (not shown) configured to bond the first panel P1 or the second panel P2 to the tape T in a vacuum state, wherein the first panel P1 or the second panel P2 is temporarily bonded to the tape T; and a sub-vacuum chamber 1400 configured to perform a process of vacuum-bonding the first panel P1 or the second panel P2 to the tape T.

The process of bonding the first panel P1 or the second panel P2 to the tape T performed in the attaching apparatus 1002 is performed in the same manner as the process of bonding the first panel P1 to the second panel P2 described above, and thus a detailed description thereof will be omitted.

The sub-indexing unit 1150 has the same configuration and the same function as the indexing unit 150 in fig. 15, and thus a detailed description thereof will be omitted.

Meanwhile, when the first panel P1 is joined to the tape T by the attaching device 1002, the first panel P1 joined to the tape T may be provided to the loading tray 155 of the index unit 150. Alternatively, when the second panel P2 is joined to the tape T by the attaching device 1002, the second panel P2 joined to the tape T may be provided to the second panel conveyor 200.

As described above, according to the embodiments of the present invention, an adhesive area between a bonding target object (i.e., a panel or a tape) and a loading pallet is reduced, and therefore, when the bonding target object is separated from the loading pallet after being bonded to the loading pallet, the bonding target object can be prevented from being damaged, so that quality and productivity can be improved.

It should be understood that various substitutions, modifications and substitutions may be made by those skilled in the art without departing from the technical spirit of the present invention, and the present invention is not limited to the embodiments and drawings described above.

Claims

1. An indexing unit for engaging a panel, comprising:

a loading pallet having an upper surface on which working pattern holes are formed;

an elastic layer coupled to an upper surface of the loading pallet to cover the working pattern hole, and loading the bonding target object on the elastic layer;

a flow path formed through the inside of the loading tray and communicating with the work pattern hole; and

a fluid supply device configured to supply fluid to the flow path,

wherein a portion of an upper surface of the elastic layer overlaps the working pattern hole, is made of a material having adhesive force, and protrudes upward when fluid is supplied to the working pattern hole through the flow path,

wherein, the upper surface of elastic layer includes:

a viscous portion overlapping the working pattern hole, the viscous portion being made of a material having adhesive force and protruding upward when the fluid is supplied to the working pattern hole through the flow path; and

a non-adhesive portion disposed at one side of the adhesive portion, having no adhesive force, and not protruding upward when the fluid is supplied to the working pattern hole through the flow path.

2. The index unit as claimed in claim 1, wherein the bonding target object is one of a display panel, a cover plate, and a tape.

3. The indexing unit of claim 1, wherein the adhesive portion comprises:

a first sub-portion having no adhesive force, the first sub-portion including a portion located at an uppermost position of the elastic layer when the fluid is supplied to the working pattern holes through the flow path, and thus expanding the elastic layer most; and

a second sub-portion made of a material having adhesive force, the second sub-portion being arranged at one side of the first sub-portion.

4. The indexing unit of claim 3, wherein the adhesive force is removed from the non-adhesive portion and the first sub-portion by grinding.

5. An indexing unit according to claim 1, wherein a plurality of adhesive portions and a plurality of non-adhesive portions are provided, and

the plurality of tacky portions and the plurality of non-tacky portions are alternately arranged.

6. The indexing unit of claim 1, wherein the upper surface of the resilient layer comprises:

a viscous portion overlapping the working pattern hole, the viscous portion being made of a material having adhesive force and contacting a lower surface of the engagement target object when the fluid is supplied to the working pattern hole through the fluid path, and thus swelling the elastic layer to a maximum; and

a non-adhesive portion disposed at one side of the adhesive portion, the non-adhesive portion having no adhesive force.

7. The indexing unit of claim 6, wherein the adhesive portion comprises:

8. The index unit of claim 1, wherein a plurality of working pattern holes are provided, and

a plurality of working pattern holes are formed on the upper surface of the loading tray at predetermined intervals.

9. An indexing unit according to claim 8, wherein a plurality of flow paths are provided, and

the plurality of flow paths are respectively communicated with the plurality of working pattern holes.

10. A panel joining apparatus comprising:

a first panel conveyor configured to convey a first panel;

an index unit on which a first panel conveyed by the first panel conveyor is loaded, the index unit including a first loading pallet configured to linearly reciprocate;

a second panel conveyor configured to convey a second panel, the second panel conveyor arranging the second panel in alignment with the first panel loaded on the index unit;

a vision unit configured to check whether the first panel and the second panel are aligned with each other;

a controller configured to control the second panel conveyor based on the alignment inspection result provided by the vision unit;

a first booster configured to receive a control signal from a controller and temporarily engage the first panel to the second panel;

a second booster configured to bond the first panel to the second panel under vacuum, wherein the first panel is temporarily bonded to the second panel; and

a vacuum chamber configured to perform a process of vacuum bonding the first panel to the second panel,

wherein the indexing unit further comprises a first elastic layer coupled to an upper surface of the first loading pallet and loaded thereon with the first panel, a first flow path formed through an interior of the first loading pallet, and a first fluid supply configured to supply a fluid to the path; and

a first working pattern hole formed on an upper surface of the first loading tray, a first flow path communicating with the first working pattern hole, a portion of an upper surface of the first elastic layer longitudinally overlapping the first working pattern hole, made of a material having adhesive force and protruding upward when fluid is supplied to the first working pattern hole through the first flow path,

wherein the upper surface of the first elastic layer comprises:

a viscous portion overlapping the working pattern hole, the viscous portion being made of a material having adhesive force and protruding upward when the fluid is supplied to the first working pattern hole through the first flow path; and

a non-adhesive portion disposed at one side of the adhesive portion, having no adhesive force, and not protruding upward when the fluid is supplied to the working pattern hole through the first flow path.

11. The panel joining apparatus according to claim 10, wherein when joining the second panel to the first panel on the first loading pallet and then separating the second panel together with the first panel, the first fluid supply supplies fluid to the first flow path to facilitate separation between the first loading pallet and the first panel.

12. The panel joining apparatus according to claim 10, wherein the visual unit includes:

a first vision unit disposed below the index unit; and

a second vision unit disposed above the index unit.

13. The panel joining apparatus according to claim 12, wherein the first vision unit checks whether the first panel is aligned and provides the result of the check to the second vision unit, and

the second vision unit checks whether the second panel is aligned with respect to the first panel based on the check result provided by the first vision unit, and then provides the check result of whether the second panel is aligned with the first panel to the controller.

14. The panel bonding apparatus according to claim 10, wherein the first pressurizer temporarily bonds the first panel to the second panel under atmospheric pressure conditions.

15. The panel joining apparatus according to claim 10, further comprising:

a protective film remover configured to remove the protective film of the first panel.

16. The panel joining apparatus according to claim 10, further comprising:

an affixion device configured to join tape to the first panel or the second panel,

wherein the attaching device includes:

a tape conveyor configured to convey a tape;

a sub-index unit on which the adhesive tape conveyed by the tape conveyor is loaded, the sub-index unit including a second loading tray configured to linearly reciprocate; and

a panel conveyor configured to convey the first panel or the second panel and to arrange the first panel or the second panel in alignment with the adhesive tape loaded on the sub-indexing unit;

a sub-vision unit configured to check whether the first panel or the second panel is aligned with the adhesive tape;

a sub-controller configured to control the panel conveyor based on an alignment inspection result provided by the sub-vision unit;

a first sub-booster configured to receive a control signal from the sub-controller and temporarily join the first panel or the second panel to the tape;

a second sub-booster configured to bond the first panel or the second panel to the adhesive tape in a vacuum state, wherein the first panel or the second panel is temporarily bonded to the adhesive tape; and

a sub-vacuum chamber configured to perform a process of vacuum bonding the first panel or the second panel to the tape.

17. The panel joining apparatus according to claim 16, wherein the index unit further includes: a second resilient layer coupled to an upper surface of the second loading pallet, the second resilient layer having tape loaded thereon; a second flow path formed through an interior of the second loading pallet; and a second fluid supply configured to supply fluid to the second flow path; and is

Wherein a second working pattern hole is formed on the upper surface of the second loading pallet, the second flow path communicates with the second working pattern hole, and a portion of the upper surface of the second elastic layer longitudinally overlaps the second working pattern hole, is made of a material having adhesive force, and protrudes upward when fluid is supplied to the second working pattern hole through the second flow path.

18. The panel joining apparatus according to claim 17, wherein the second fluid supply device supplies fluid to the second flow path to facilitate separation between the second loading pallet and the adhesive tape when joining the first panel or the second panel to the adhesive tape on the second loading pallet and then separating it together with the adhesive tape.