KR100768470B1 - Polarized-film attaching apparatus - Google Patents

Abstract

An apparatus for attaching a polarizer film is provided to restrain formation of a bubble layer between a polarizer film and a substrate cell by performing an attachment operation with one corner of the substrate cell and the polarizer film pressed. A work table(2) provides a work surface. A first rotating table(4) includes a rotating surface(S2) which receives power from a driving source(M) to rotate around a center. A loading plate(6) is fixedly formed on the first rotating table. A substrate cell(G) for a flat panel display device is loaded in the state of standing such that any one of corners of the substrate cell contacts the first rotating table. A second rotating table(10) is disposed on the work surface so as to be separated from the first rotating table. The second rotating table includes a rotating surface(S3) which receives power from a driving source(M) to rotate around a center. A film attaching unit(12) is fixedly formed on the second rotating table and a polarizer film(F) is disposed in the state of standing on an attaching surface(14). The film attaching unit presses the polarizer film to an outer circumferential surface of a pressing roller(16) mounted on the attaching surface to attach the polarizer film on a surface of the substrate cell loaded on the loading plate. A film supplying unit(18) supplies the polarizer film to the attaching surface of the film attaching unit in a state while the film supplying unit corresponds to the substrate cell loaded on the loading plate.

Description

Polarized film attaching apparatus

1 is a plan view for explaining the overall structure of the polarizing film attachment device according to an embodiment of the present invention.

2 is a view for explaining the structure of the loading plate of FIG.

3 is a view for explaining the film attaching machine structure of FIG.

4 and 5 are views for explaining the action of the film attaching machine of FIG.

6 is a view for explaining the structure of the film feeder of the polarizing film attachment device according to an embodiment of the present invention.

7 is a view for explaining the structure of the protective film remover of the polarizing film attachment device according to an embodiment of the present invention.

8 is a view for explaining the operation of the remover of FIG.

9 is a view for explaining the structure of the aligner of the polarizing film attachment device according to an embodiment of the present invention.

10 is a view for explaining another embodiment of the polarizing film attachment device according to an embodiment of the present invention.

FIG. 11 is a diagram for describing an operation of the inverter of FIG. 10.

The present invention relates to an apparatus for attaching a polarizing film, and more particularly, is used for attaching a polarizing film to a surface of a substrate cell for a flat panel display device, and in particular, greatly reduces defect quality when attaching a polarizing film, thereby improving work efficiency and productivity. It relates to a polarizing film attachment device that can be made.

In general, a substrate cell (or substrate module) for a flat panel display device is incorporated in a state in which two substrates face each other, and a conventional polarizing layer is provided for selectively transmitting light that transmits liquid crystals to the outer surfaces of each of the combined substrates. Is formed.

The polarizing layer is formed in a manner of attaching a conventional polarized film (polarized-film) having a polarizing function in the manufacturing of the substrate cell, as such an apparatus used in the operation for attaching the polarizing film, by the applicant of 2004 There is a device of Patent No. 0589044, filed and registered on March 10, 2010.

However, the polarizing film bonding apparatus of Patent No. 0589044 described above is loaded in a state in which at least two edges of four edges are pressed in contact with each other when the substrate cell is loaded, and thus may be easily damaged by various impacts or contact pressures.

In particular, in the polarizing film bonding apparatus of Patent No. 0589044, the attachment operation is performed in such a way that the roller is moved toward the opposite edge side while the edge edge of the polarizing film is pressed with a pressure roller. Therefore, it is difficult to obtain a satisfactory adhesion quality with such an attachment method.

For example, when the pressure roller is moved to the opposite side while the entire edge of the opposite edge of the polarizing film is pressed, the thin long bubble layer may be easily generated between the contact surface of the polarizing film and the substrate module.

And, if the bubble layer is generated in this way, in order to remove the bubble layer, it is necessary to proceed with the additional work of pressurizing as heat or to separate and reattach the polarizing film from the substrate cell, thereby reducing the work efficiency and reducing productivity. It can be a factor.

The present invention has been made to solve the conventional problems as described above, the object of the present invention is to prevent the breakage of the substrate cell for a flat panel display device, in particular, can significantly reduce the poor quality when the polarizing film is attached It is to provide a polarizing film attachment device.

In order to realize the object of the present invention as described above,

Worktable providing work surface;

A first rotating table provided with a rotating surface rotated with respect to the center by receiving power from a driving source;

A loading plate fixedly mounted on the first rotation table and loaded in an upright position such that one of the vertices of two vertices of the substrate cell for the flat panel display device faces the first rotation table;

A second rotary table positioned apart from the first rotary table on the working surface and provided with a rotary surface rotated with respect to the center by receiving power from a driving source;

It is fixed on the second rotating table and pressed to the outer circumferential surface of the pressure roller installed on the mounting surface on which the polarizing film is placed upright, on one side or the opposite side of the substrate cell for flat panel display device loaded on the loading plate by pressing the polarizing film. A film attaching machine for attaching;

A film feeder for supplying a polarizing film to an attachment surface of the film attaching device in a state corresponding to a loading posture of the substrate cell for a flat panel display element positioned on the loading plate;

It provides a polarizing film attachment device comprising a.

Hereinafter, preferred embodiments of the present invention will be described with reference to the accompanying drawings. Embodiments of the present invention are described to the extent that those skilled in the art can implement the present invention.

Therefore, since the embodiments of the present invention may be modified in various other forms, the claims of the present invention are not limited to the embodiments described below.

1 is a plan view for explaining the overall structure of the polarizing film attachment device according to an embodiment of the present invention, 2 denotes a work table.

This work table 2 is a conventional work surface (S1) is provided with a flat work surface (S1) that can proceed to attach the polarizing film (F) to the substrate cell for a flat panel display device (G (hereinafter referred to as "substrate cell") It is made in the form of a frame.

The work table 2 is provided with a first rotary table 4 having a rotating surface S2 capable of receiving power from a driving source M, such as a servo motor, and rotating about a central portion.

The first rotary table 4 may be formed in a disc shape as shown in FIG. 1, and the rotary surface S2 is fixed to be rotated in a substantially horizontal posture on the working surface S1.

On the rotating surface S2, a loading plate 6 for loading the substrate cell G in an upright position is positioned.

As shown in FIG. 2, the loading plate 6 has a loading surface 8 that can detachably fix one of both sides of the substrate cell G, and as shown in FIG. 1, around the rotating surface S2. It can be fixed to each of the four divided points along.

The loading surface 8 is fixed to any one surface of the substrate cell (G) in the standing state from the rotation surface (S2) and the lower edge side is inclined to either side, as shown in Figure 2 any one vertex of the rotation surface It is fixed to the loading posture of the rhombus shape facing (S2).

Although not shown in the drawing, the loading surface 8 may be connected to a conventional vacuum generator, and may have a structure capable of detachably fixing the substrate cell G by a suction force by vacuum pressure.

The loading plate 6 is fixed to the entire surface of the substrate cell (G) by any one of the two sides of the substrate cell (G) is adsorbed and fixed in a state of being in contact with the loading surface (8) as well as a large area of the substrate cell (G) Can be easily obtained.

In addition, since it is possible to load in a non-contact state with the edge of the substrate cell (G), the breakage of the substrate cell (G) can be minimized as compared with the conventional loading method of directly pressing and fixing at least two edges.

In addition, pickup heads H1 and H2 may be used as shown in FIG. 1 to load or unload the substrate cell G on the loading plate 6 side.

The pickup heads H1 and H2 may have a conventional adsorber structure, and are disposed at the positions for loading and unloading the substrate cell G as shown in FIG. 1 on the rotating surface S2.

On the other hand, the work table 2 is located apart from the first rotary table 4, the second rotary table 10 is located.

The second rotating table 10 has a rotating surface S3 that is rotated about a central part by receiving power from a driving source M such as a servo motor like the first rotating table 10.

The second rotary table 10 is connected to the first rotary table 4 so that the operation for attaching the polarizing film F to the substrate cell G side may be performed on the rotary surface S3. The film attacher 12 is positioned as in.

The film attaching machine 12 has an attaching surface 14 capable of detachably fixing the polarizing film F by adsorptive force by vacuum pressure, and a pressure roller 16 is rotatable on one side of the attaching surface 14. Is installed.

The pressure roller 16 serves to press the polarizing film (F) to the outer peripheral surface to be attached to the substrate cell (G) surface.

The attachment surface 14 may be attached to the polarizing film F on the surface of the substrate cell G while the position and attitude of the second rotating table 10 are changed in the rotation surface S3.

To this end, in the present embodiment, the film attaching machine 12 is moved along the normal pneumatic transfer cylinder L1 as shown in FIG. 3 and the posture is changed by the servo motor L2 to the surface of the substrate cell G. The polarizing film F is attached.

That is, the film attaching machine 12 is changed to an inclined posture as shown in FIG. 4 in a state in which the polarizing film F is fixed to the attaching surface 14, so that the pressure roller 16 replaces the polarizing film F. It moves along the pneumatic transfer cylinder L1 in the state which contacted either surface of the board | substrate cell G in between. By this operation, the pressing roller 16 is rolled, and the polarizing film F is sequentially pressed by the outer circumferential surface of the roller 16 and attached to the surface of the substrate cell G (see FIG. 5).

In the above description as an example that the polarizing film (F) is attached when the film attaching machine 12 is moved along the pneumatic transfer cylinder (L1), but is not limited thereto.

For example, when the attachment surface 14 is inclined toward the substrate cell G, the polarizing film F is pressed by the pressure roller 16 during the rotation operation of the second rotary table 10. It can also be set to attach to it.

The worktable 2 has a film feeder for automatically supplying the polarizing film F to the film attaching machine 12 in a state corresponding to the loading posture of the substrate cells G loaded on the loading plates 6 ( 18) may be further included.

The film feeder 18 may be used a conventional adsorber capable of separably fixing the polarizing film (F) by the adsorption force by the vacuum pressure, a conventional robot capable of moving in at least two directions as shown in FIG. Fixed to the arm 20 may be made to take over the polarizing film (F) to the attachment surface (14).

In addition, the polarizing film F may be supplied while being drawn out one by one from the cassette 22 by the film feeder 18 in a state in which a plurality of polarizing films F are stored in the housing cassette 22 as shown in FIG. 6. .

The cassette 22 may be a cassette having a conventional vertical stacked structure capable of stacking a plurality of polarizing films (F) in the vertical direction.

The supply structure of the polarizing film F may supply the polarizing film F to the attachment surface 14 to correspond to the posture of the substrate cell G loaded on the loading plate 6.

Therefore, when attaching the polarizing film (F) to the surface of the substrate cell (G) with the film attaching machine 12, as shown in Figure 5, the left and right vertices of the substrate cell (G) and the polarizing film (F) The attachment operation may proceed in such a way as to move to the opposite side vertex in the first pressed state by the pressure roller 16.

Such an attachment method is an attachment method or an entire edge of an edge facing the polarizing film F while the substrate cell G and the polarizing film F are pressed in a surface contact state in a state where they are in contact with each other. It is possible to prevent the bubble layer is generated between the substrate cell (G) and the polarizing film (F) as compared to the conventional attachment methods to move while moving to the opposite side in the pressed state.

In addition, a normal protective film F1 is attached to one side of the polarizing film F. The protective film F1 is located on the opposite side of the surface facing any one surface of the polarizing film F which is brought into contact with the attachment surface 14 when the film feeder 18 takes over the attachment surface 14. Is supplied.

The remover 24 for automatically removing the protective film F1 attached to one side of the polarizing film F is attached to the working surface S1 before attaching the polarizing film F to the film attaching machine 12. It can be made to include more.

The remover 24 is made to remove the protective film F1 by using the adhesive force of the separating tape T having an adhesive layer on one side.

To this end, in the present embodiment, as shown in FIG. 7, the separating tape T is connected between two reels R via one side of the guide block B, and the guide block B is The protective film F1 adheres to one side of the tape T by an operation of moving toward the attachment surface 14 of the film attaching machine 12 or vice versa and is removed as shown in FIG. 8.

In particular, the guide block (B) is in contact with one side of the separation tape (T) any one of the left and right vertices of the polarizing film (F) fixed to the attachment surface 14 in the same posture as in FIG. Since the separation operation is performed in a closed state, the protective film F1 may be more easily separated from the polarizing film F. FIG.

Although not shown in the drawings, the two reels R may receive power from a conventional motor so that the separation tape T may be transferred from one reel R to another reel R. Is done.

The remover 24 is not shown in the drawing so that the guide block B can be moved toward or attaching to the attachment surface 14 of the film attaching machine 12, but not for normal pneumatic use on the working surface S1. It can be moved along the transfer cylinder.

In addition, the protective film F1 separated from the polarizing film F by the remover 24 may be collected in one place while being adsorbed with a conventional adsorber or the like and placed in a container, although not shown in the drawing.

The polarizing film attachment device according to the embodiment of the present invention may further comprise an aligner 26 for aligning the posture of the film (F) prior to the attachment of the polarizing film (F).

The aligner 26 may be composed of a pair of two alignment plates (P) in contact with one or more points of the edge of the polarizing film (F) to change the posture by contact force as shown in FIG. .

The two alignment plates P may be formed as shown in FIG. 9 so as to press the edges of the polarizing film F fixed in an approximately rhombus shape to the attachment surface 14 of the film attaching machine 12. .

Each of the alignment plates P may be connected to a normal cylinder C to be reciprocated to enable a pressurization operation along the piston rod when the cylinder C is driven.

The aligner 26 presses at least two or more points of the entire edges of the polarizing film F located on the attachment surface 14 of the attacher 12 to the alignment plate P to form a substrate cell ( The posture may be aligned in a state corresponding to the loading posture of G).

In the above embodiment, alignment of the postures with the protective film F1 removed after the polarizing film F is fixed to the attaching device 12 is illustrated in the description and drawings as an example, but is not limited thereto.

For example, the alignment operation may be performed by the aligner 26 before removing the protective film F1 of the polarizing film F.

That is, when the polarizing film F is supplied to the film attaching machine 12 and moved along the second rotating table 10, the posture of the polarizing film F is taken into consideration in consideration of the rotation direction of the table 10. The sorter 24 and the remover 24 may be disposed to proceed with the removal of the protective film F1 in the state of undergoing the alignment.

In addition, the polarizing film attachment device according to the embodiment of the present invention is a double-sided attachment operation in addition to the cross-sectional attachment structure for attaching the polarizing film (F) to any one of both sides of the substrate cell (G). It can be made possible.

For this double-sided attachment operation, as shown in FIG. 10, the second rotary table 10 and the film attacher are capable of attaching the polarizing film F at two points along the rotation direction of the first rotary table 4. 12 may be disposed respectively.

At this time, an inverter 28 for inverting the loading attitude of the substrate cell G is positioned between the two second rotary tables 10 spaced apart from each other in the rotational direction of the first rotary table 4.

This inverter 28 is for two inversion so that the polarization film (F) is attached to one side of the substrate cell (G) and the polarizing film (F) can be attached to the opposite side to reverse the loading posture. It may be composed of an arm (D).

Any one of the two inverting arms D absorbs the substrate cell G loaded on the loading plate 6, and the other inverting arm D is inverted as shown in FIG. To take over.

In addition, the other inversion arm D takes the substrate cell D in a state in which the posture is inverted, and the loading arm D can be loaded on the attachment surface 14 of the attaching device 12 again.

The two inverting arms (D) may be a conventional adsorber and may be rotated and moved to enable inversion of the substrate cell (G) as described above by a general servo motor or a pneumatic transfer cylinder, although not shown in the drawing. Is installed.

Therefore, the substrate cell G can be loaded in the inverted state in the loading plate 6 by the action of the inverter 28, so that when the first rotary table 4 is rotated, the two second At the point of the rotation table 10, the film attaching machines 12 may perform a double-sided attaching operation of attaching the polarizing film F to one side and the opposite side of the substrate cell G.

As described above, in the present invention, the polarizing film can be easily attached to one side or the other side of the flat panel display device while moving in a rotary manner, and in particular, one side of the substrate cell and the polarizing film when the polarizing film is attached. Since the attachment work proceeds while the vertex is first pressed, the bubble layer can be suppressed as much as possible between the attachment surfaces thereof.

Therefore, the poor quality generated when the substrate cell and the polarizing film is attached can be greatly reduced, thereby further improving workability and productivity.

Claims (6)

Worktable providing work surface; A first rotating table provided with a rotating surface rotated with respect to the center by receiving power from a driving source; A loading plate fixedly mounted on the first rotation table and loaded in an upright position such that one of the vertices of two vertices of the substrate cell for the flat panel display device faces the first rotation table; A second rotary table positioned apart from the first rotary table on the working surface and provided with a rotary surface rotated with respect to the center by receiving power from a driving source; It is fixed on the second rotating table and pressed to the outer circumferential surface of the pressure roller installed on the mounting surface on which the polarizing film is placed upright, on one side or the opposite side of the substrate cell for flat panel display device loaded on the loading plate by pressing the polarizing film. A film attaching machine for attaching; A film feeder for supplying a polarizing film to an attachment surface of the film attaching device in a state corresponding to a loading posture of the substrate cell for a flat panel display element positioned on the loading plate; Polarizing film attachment device comprising a. The method according to claim 1, The loading plate is a polarizing film attachment device is installed at at least one point along the circumference of the first rotary table. The method according to claim 1, The film attaching device is a polarizing film attaching device, characterized in that the pressure roller with the polarizing film interposed therebetween while moving toward the opposite vertex in a state in contact with one of the vertices of one side or the opposite surface of the substrate cell. . The method according to claim 1, The polarizing film attachment device further includes a remover for removing the protective film covered on one side of the polarizing film, The remover is a polarizing film bonding apparatus, wherein one side of the tape having an adhesive force detachably contacts a vertex of one side of the polarizing film positioned on the film attaching machine, thereby separating and removing the protective film from the polarizing film by the adhesive force of the tape. The method according to claim 1, The polarizing film attaching device further comprises an aligner for aligning the posture before the attachment of the film, The aligner is a polarizing film attachment device, characterized in that to align the posture by the contact force by pressing at least two or more points of the edge of the polarizing film positioned on the film attaching device. The method according to claim 1, The polarizing film attaching apparatus further includes an inverter for inverting the loading posture so that the polarizing film can be attached to one side or the opposite side of the substrate cell loaded on the loading plate, The inverter is a polarizing film attachment device, characterized in that the loading state is reversed while taking over / taking over the substrate cell with two adsorption heads.

Images