CN105453161A - Manufacturing system for optical display device - Google Patents

Abstract

The production system of an optical display device is a production system of an optical display device formed by bonding a first optical member to the first surface of an optical display component and bonding a second optical member to the second surface of an optical display component (1) . The production system (1) of the optical display device comprises: a first bonding device, which bonds the first optical member on the first surface of the optical display part to form a first optical member bonding body; a rotating turning device (4), It rotates and flips the first optical member bonding body; the second bonding device bonds the second optical member on the second surface of the optical display component of the first optical member bonding body to form a second optical member bonding body; And a moving device (6) for moving the second optical member bonding body from the second bonding device to the rotating and reversing device in order to rotate or reverse the second optical member bonding body by the rotating and reversing device.

Description

Production system for optical display devices

technical field

The invention relates to a production system of an optical display device.

This application claims priority based on Japanese Patent Application No. 2013-165502 filed on August 8, 2013, the contents of which are incorporated herein.

Background technique

As a method of bonding a polarizing plate (optical member) to a liquid crystal panel (optical display component), a bonding method called an RTP (Roll to Panel) method is known (for example, refer to Patent Document 1). This bonding method is a method in which a long polarizing plate unwound from a roll is cut into a predetermined size and directly bonded to a liquid crystal panel conveyed on a production line. Since polarizing plates with different polarizing axis directions are bonded to the front and back of the liquid crystal panel, two types of polarizing plate laminating equipment are prepared for the front and back.

prior art literature

patent documents

Patent Document 1: Japanese Patent No. 4669070

Contents of the invention

The problem to be solved by the invention

In the film bonding system for bonding polarizers on both sides of the liquid crystal panel, in addition to the above two bonding devices, it also includes a conveying device for transporting the liquid crystal panel; a rotating device for rotating the liquid crystal panel; a flipping device for flipping the liquid crystal panel ; Various devices such as a detection device for detecting the relative bonding position of a liquid crystal panel and a polarizing plate (inspection of bonding failure). Usually, various processes are performed in the order of back bonding, bonding defect inspection, rotation, inversion, front bonding, bonding defect inspection, rotation, and inversion. The equipment is large-scale, and the initial investment and maintenance costs are huge.

The aspect of this invention provides the production system of the optical display device which can realize miniaturization and cost reduction of a device.

means to solve the problem

The production system of the optical display device according to the aspect of the present invention adopts the following configuration.

(1) In the production system of the optical display device according to the first aspect of the present invention, in the optical display device, the first optical member is bonded to the first surface of the optical display component, and the second optical member is bonded to the optical display component. The second surface of the display part is formed, and the production system of the optical display device is characterized in that it includes: a first bonding device that bonds the first optical member to the second surface of the optical display part. 1 surface to form a first optical member bonding body; a rotating and flipping device that rotates and flips the first optical member bonding body; a second bonding device that bonds the second optical member on the first The second surface of the optical display part of the optical member bonding body is used to form a second optical member bonding body; The moving device moves the second optical member bonding body from the second bonding device to the rotating and reversing device.

(2) In the production system of the optical display device described in the above (1), it is also possible to detect the relative position of the first optical member between the first bonding device and the second bonding device. A detection device for the relative bonding position of the optical display component and the relative bonding position of the second optical member with respect to the optical display component, the first bonding device directs the optical display component toward the The detection device carries out the bonding process of the first optical member, and the second bonding device carries out the bonding process of the second optical member while transporting the optical display component toward the detection device. .

(3) In the production system of the optical display device described in the above (2), it is also possible to follow the first bonding device, the detection device, the second bonding device, the The order in which you rotate the flippers is configured.

(4) In the production system of the optical display device described in any one of the above (1) to (3), the rotation turning device includes: bonding the first optical member and the second optical member a rotation device for rotating the member bonding body; and an inversion device for inverting the first optical member bonding body and the second optical member bonding body.

(5) In the production system of the optical display device according to the second aspect of the present invention, in the optical display device, the first optical member is bonded to the first surface of the optical display component, and the second optical member is bonded to the optical display component. The second surface of the display part is formed, and the production system of the optical display device is characterized in that it includes: a first bonding device that bonds the first optical member to the second surface of the optical display part. 1 surface to form a first optical member bonding body; a second bonding device that bonds the second optical member to the second surface of the optical display component of the first optical member bonding body to form The second optical member bonding body; and a detection device that detects the relative bonding position of the first optical member with respect to the optical display part and the relative bonding position of the second optical member with respect to the optical display part , the detection device is arranged between the first bonding device and the second bonding device, and the first bonding device carries out the process while transporting the optical display component toward the detection device. In the bonding process of the first optical member, the second bonding device performs the bonding process of the second optical member while conveying the optical display component toward the detection device.

(6) In the production system of the optical display device described in the above (5), it may also include a rotation and inversion device that rotates and inverts the first optical member bonding body, along the conveying line, according to the first lamination The laminating device, the detecting device, the second laminating device, and the rotating and flipping device are arranged in order.

Invention effect

According to the aspect of this invention, the production system of the optical display device which can realize downsizing and cost reduction of a device can be provided.

Description of drawings

FIG. 1 is a plan view illustrating a schematic configuration of a film bonding system according to the present embodiment.

FIG. 2 is a side view showing a schematic configuration of the film bonding system of the present embodiment.

Fig. 3 is a plan view of a liquid crystal panel.

Fig. 4 is an A-A sectional view of Fig. 3 .

5 is a partial cross-sectional view of an optical member sheet bonded to a liquid crystal panel.

Fig. 6 is a diagram showing the operation of the cutting device.

FIG. 7 is a diagram illustrating an operation flow of the film bonding system.

detailed description

Hereinafter, embodiments of the present invention will be described with reference to the drawings, but the present invention is not limited to the following embodiments.

In all the drawings below, the dimensions, ratios, and the like of each constituent element are appropriately different for the convenience of viewing the drawings. In addition, in the following description and drawings, the same reference numerals are assigned to the same or corresponding elements, and overlapping descriptions are omitted.

(Production system for optical display devices)

In this embodiment, as a production system of an optical display device, a film bonding system constituting a part thereof will be described. The film bonding system is a system for bonding film-shaped optical members such as polarizing films, anti-reflection films, and light-diffusing films to plate-shaped optical display components such as liquid crystal panels and organic EL panels. In this embodiment, a liquid crystal display device (optical display device) is produced by laminating polarizing films (optical members) on both surfaces of a liquid crystal panel (optical display component) as an example.

FIG. 1 is a plan view illustrating a schematic configuration of a film bonding system 1 according to the present embodiment. FIG. 2 is a side view showing a schematic configuration of the film bonding system 1 according to the present embodiment.

In the following description, an XYZ rectangular coordinate system is set as needed, and the positional relationship of each member is demonstrated with reference to this XYZ rectangular coordinate system. For this embodiment, let the conveying direction of the liquid crystal panel as an optical display component be the X direction, make the direction (the width direction of the liquid crystal panel) perpendicular to the X direction in the plane of the liquid crystal panel be the Y direction, and The direction perpendicular to the Y direction is referred to as the Z direction.

As shown in FIG.1 and FIG.2, the film bonding system 1 of this embodiment is set as one process of the manufacturing line of liquid crystal panel P. As shown in FIG. Each part of the film bonding system 1 is collectively controlled by the control device 9 which is an electronic control device. The film bonding system (optical display equipment production system) 1 is roughly divided into a bonding system comprising a first bonding device 3, a second bonding device 5, etc.; ) 6. The detection device 7, the rotating device (rotating mechanism) 41, and the conveying system (optical display parts conveying system, liquid crystal panel conveying system) such as the turning device (turning mechanism) 42.

3 is a plan view of liquid crystal panel P viewed from the thickness direction of liquid crystal layer P3 of liquid crystal panel P. As shown in FIG.

As shown in FIG. 3 , the liquid crystal panel P includes: a first substrate P1 having a rectangular shape in a plan view; a relatively small rectangular second substrate P2 arranged opposite to the first substrate P1; 2 The liquid crystal layer P3 between the substrates P2. Liquid crystal panel P has a rectangular shape along the outer periphery of first substrate P1 in plan view, and has a display region P4 that is a region shrunk inside the outer periphery of liquid crystal layer P3 in plan view.

Fig. 4 is an A-A sectional view of Fig. 3 .

As shown in FIG. 4 , on the front (first face) of the liquid crystal panel P and the back (second face) of the liquid crystal panel P, the first optical member sheet F1 in the shape of a strip and the first optical member sheet F1 in the shape of a strip are appropriately bonded. 2nd optical member sheet|seat F2 (refer FIG. 1, it may be collectively referred to below as optical member sheet FX.) the 1st optical member F11 and 2nd optical member F12 (hereinafter may be collectively referred to as optical member F1X.) respectively cut out. In this embodiment, the first optical member F11 as a polarizing film and the first optical member F11 as a polarizing film are attached to the backlight side surface (first surface) of the liquid crystal panel P and the display surface side surface (second surface) of the liquid crystal panel P, respectively. The second optical member of the film F12.

A frame portion G having a predetermined width is provided outside the display area P4, and a sealant and the like for bonding the first substrate P1 of the liquid crystal panel P and the second substrate P2 of the liquid crystal panel P are arranged.

FIG. 5 is a partial cross-sectional view of the optical member sheet FX bonded to liquid crystal panel P. FIG.

As shown in Figure 5, the optical member sheet FX has: a film-like optical member main body F1a; an adhesive layer F2a provided on the first surface of the optical member main body F1a (Fig. Separator sheet F3a laminated on the 1st surface of optical member main body F1a separably; Front protective film F4a laminated on the 2nd surface (lower surface in FIG. 5) of optical member main body F1a. Optical member main body F1a functions as a polarizing plate, and is bonded covering the whole display area P4 of liquid crystal panel P and the peripheral area of display area P4. For the convenience of illustration, the hatching of each layer in FIG. 5 is omitted.

The optical member main body F1a is bonded to the liquid crystal panel P through the adhesive layer F2a in the state which left the adhesive layer F2a on the 1st surface of the optical member main body F1a, and separated the separator F3a. Hereinafter, the part which removed the separation sheet F3a from the optical member sheet|seat FX is called bonding sheet|seat F5.

The optical member main body F1a is bonded to the liquid crystal panel P through the adhesive layer F2a in the state which left the adhesive layer F2a on the 1st surface of the optical member main body F1a, and separated the separator F3a. Hereinafter, the part which removed the separation sheet F3a from the optical member sheet|seat FX is called bonding sheet|seat F5.

The optical member main body F1a has: a sheet-shaped polarizer F6; a first film F7 bonded to the first face of the polarizer F6 by an adhesive or the like; and a second film F7 bonded to the second face of the polarizer F6 by an adhesive or the like. 2 film F8. The first film F7 and the second film F8 are protective films for protecting the polarizer F6, for example.

The optical member main body F1a may have a single-layer structure composed of one optical layer, or may have a laminated structure in which a plurality of optical layers are laminated on each other. In addition to the polarizer F6, the optical layer may also be a retardation film or a brightness enhancement film. At least one of the first film F7 and the second film F8 may be subjected to front treatment including hard coat treatment for protecting the outermost surface of the liquid crystal display element or antiglare treatment to obtain effects such as antiglare. The optical member main body F1a may contain at least one of the 1st film F7 and the 2nd film F8. For example, when the first film F7 is omitted, the separator F3a may be bonded to the first surface of the optical member main body F1a via the adhesive layer F2a.

Next, the film bonding system 1 of this embodiment is demonstrated in detail.

As shown in FIG. 1 and FIG. 2 , the film bonding system 1 of this embodiment includes the transport from the upstream side (+X direction side) of the liquid crystal panel P on the right side of the figure in the transport direction to the liquid crystal panel P on the left side of the figure. On the downstream side in the direction (-X direction side), the driven roller conveyor 6 (the first conveyor 61, the second conveyor 62, the third conveyor 63, and the fourth conveyor) that conveys the liquid crystal panel P in a horizontal state machine 64). Here, the roller conveyor 6 corresponds to a moving device.

The 1st conveyor 61, the 2nd conveyor 62, the 3rd conveyor 63, and the 4th conveyor 64 are comprised so that the conveyance direction of liquid crystal panel P can be switched between -X direction and +X direction, respectively.

The details will be described later, and the liquid crystal panel P follows the first conveyor 61, the second conveyor 62, the third conveyor 63, the fourth conveyor 64, the third conveyor 63, the second conveyor 62, and the third conveyor. The order of the conveyor 63 and the fourth conveyor 64 is conveyed. Although the liquid crystal panel P can be transported in both directions of the +X direction and the -X direction, since the liquid crystal panel P is input from the end portion on the +X direction side of the roller conveyor 6 and is transported from the end portion on the −X direction side In the following description, for convenience, the +X direction side is referred to as "panel conveyance upstream side" and the -X direction side is referred to as "panel conveyance downstream side".

The film bonding system 1 of this embodiment is equipped with the supply apparatus 2, the 1st bonding apparatus 3, the rotary inverting apparatus 4, the 2nd bonding apparatus 5, the detection apparatus 7, the conveyance cart 8, and the control apparatus 9.

In this embodiment, 1 L of conveyance lines are formed along the conveyance direction (X direction) of liquid crystal panel P. The first bonding device 3 , the detection device 7 , the second bonding device 5 , and the rotary inverting device 4 are sequentially arranged along the conveyance line 1L. The detection apparatus 7 is arrange|positioned on the conveyance path of the liquid crystal panel P between the 1st bonding apparatus 3 and the 2nd bonding apparatus 5. The 2nd bonding apparatus 5 is arrange|positioned on the conveyance path of the liquid crystal panel P between the rotary inversion apparatus 4 (rotation apparatus 41, inversion apparatus 42) and the 1st bonding apparatus 3.

In addition, the arrangement order of the first bonding device 3 , the detection device 7 , the second bonding device 5 , and the rotation and inversion device 4 is not limited thereto. For example, the first laminating device 3, the second laminating device 5, the detecting device 7, and the rotation turning device 4 may be arranged in the order along the conveying line 1L, or the first laminating device 3, the detecting device 7, Sequential arrangement of the rotary turning device 4 and the second laminating device 5 . The arrangement order of the first laminating device 3 , the detecting device 7 , the second laminating device 5 , and the rotation and inverting device 4 can be appropriately changed as needed.

The supply apparatus 2 sucks the liquid crystal panel P conveyed on the 1st conveyor 61, and supplies it to the 1st bonding apparatus 3. The supply device 2 has a panel holder 20 .

The panel holding part 20 holds liquid crystal panel P so that it can move in an up-down direction and a horizontal direction, and performs positioning of liquid crystal panel P. As shown in FIG. For example, the panel holding unit 20 sucks and holds the upper surface of the liquid crystal panel P by vacuum suction. The panel holding part 20 moves in the state which adsorb|sucked and held the liquid crystal panel P, and is used for conveying the liquid crystal panel P. As shown in FIG. The panel holding unit 20 releases the suction holding when the conveyance is completed. The 1st conveyor 61 conveys liquid crystal panel P so that the short side of the display area P4 may follow a conveyance direction.

The supply device 2 may perform positioning (identification of a position) of the liquid crystal panel P. As shown in FIG. In this case, for example, a positioning camera is provided on the panel holding portion 20 . The alignment camera captures an image of an alignment mark, a tip shape, and the like of the liquid crystal panel P in a state where the panel holding unit 20 holds the liquid crystal panel P and raises it. The imaging data of the positioning camera is sent to the control device 9, and the panel holding part 20 operates based on this imaging data, and performs positioning of the liquid crystal panel P with respect to the 1st bonding apparatus 3 (pinch roller 32) of a conveyance destination. That is, in consideration of liquid crystal panel P relative to the transport direction of the first laminating device 3, the direction perpendicular to the transport direction, and the state of the deviation of liquid crystal panel P on the rotation direction around the vertical axis, the liquid crystal panel P is sent to the first bonding device 3 .

The first bonding device 3 is provided on the panel conveyance downstream side of the supply device 2 . The 1st bonding apparatus 3 bonds the sheet|seat (1st optical member F11) of the bonding sheet|seat F5 cut into predetermined size with respect to the lower surface of the liquid crystal panel P introduced into the bonding position Q1.

The first bonding device 3 includes a conveying device 31 and a nip roller 32 .

The conveyance apparatus 31 conveys the optical member sheet|seat FX along the longitudinal direction of the optical member sheet|seat FX, unwinding the optical member sheet|seat FX from the roll R1 by which the optical member sheet|seat FX was wound. The conveyance apparatus 31 conveys the bonding sheet|seat F5 using the separator F3a as a carrier.

The transport device 31 includes a roller holding unit 31a, a plurality of guide rollers 31b, a cutting device 31c, a blade 31d, and a winding unit 31e.

The roll holding|maintenance part 31a hold|maintains the coil R1 which wound the tape-shaped optical member sheet FX, and feeds out the optical member sheet FX along the longitudinal direction of the optical member sheet FX.

The some guide roller 31b winds up the optical member sheet|seat FX, and guides the optical member sheet|seat FX unwound from the roll R1 along a predetermined conveyance path.

The cutting apparatus 31c half-cuts the optical member sheet|seat FX on a conveyance path.

The blade 31d winds up the optical member sheet FX which gave the half-cut on an acute angle, and supplies the bonding sheet F5 to the bonding position Q1, separating the bonding sheet F5 and the separation sheet F3a.

The winding part 31e holds the separator roll R2, and winds up the separator F3a separated via the blade 31d on the separator roll R2.

The roller holding part 31a located at the starting point of the conveying device 31 and the winding part 31e located at the end point of the conveying device 31 are driven synchronously with each other, for example. Thereby, the winding part 31e winds up the separation sheet F3a which passed the blade 31d, while the roll holding|maintenance part 31a feeds out the optical member sheet|seat FX to the conveyance direction of the optical member sheet|seat FX. Hereinafter, the conveyance direction upstream side of the optical member sheet FX (separation sheet F3a) of the conveyance apparatus 31 is called a sheet conveyance upstream side, and a conveyance direction downstream is called a sheet conveyance downstream side.

Each guide roller 31b is movable so that the advancing direction of the optical member sheet|seat FX during conveyance can be changed along a conveyance path, and at least one part of some guide rollers 31b adjusts the tension|tensile_strength of the optical member sheet FX during conveyance.

A tension adjustment roller (not shown) may be disposed between the roller holding portion 31a and the cutting device 31c. The tension adjustment roll absorbs the discharge|emission amount of the optical member sheet|seat FX conveyed from the roll holding|maintenance part 31a, while the optical member sheet|seat FX is cut|disconnected by the cutting apparatus 31c. In other words, the tension adjustment roller adjusts the discharge|emission amount of the optical member sheet|seat FX discharged|emitted to the cutting apparatus 31c.

FIG. 6 is a diagram showing the operation of the cutting device 31c according to this embodiment.

As shown in FIG. 6, the cutting device 31c cuts a part of the thickness direction of the optical member sheet FX in the entire width direction perpendicular to the longitudinal direction of the optical member sheet FX when the optical member sheet FX is released to a predetermined length. half cut. The cutting device 31c of this embodiment is provided so that it can advance and retreat to the optical member sheet FX from the side opposite to the separator F3a with respect to the optical member sheet FX.

The cutting device 31c adjusts the advancing and retreating position of the cutting edge in such a way that the optical member sheet FX (separator F3a) is not cut (a predetermined thickness remains on the separator F3a) according to the tension acting on the optical member sheet FX during transportation, and performs half-cutting to achieve sticking. The vicinity of the interface between the laminate F2a and the separator F3a. In addition, a laser device instead of a cutting blade may be used.

Cutting lines L1 and L2 across the entire width direction of the optical member sheet FX are formed on the half-cut optical member sheet FX by cutting the optical member main body F1a and the front protective film F4a in the thickness direction of the optical member sheet FX. Cutting line L1, L2 is formed so that a plurality may be arranged in the longitudinal direction of the belt-shaped optical member sheet FX. For example, in the case of conveying the bonding process of the liquid crystal panel P of the same size, several piercing lines L1 and L2 are formed at equal intervals in the longitudinal direction of the optical member sheet|seat FX. The optical member sheet|seat FX is divided into some division|segmentation in the longitudinal direction by some piercing line L1, L2. The division|section sandwiched by a pair of incision line L1, L2 adjacent to the longitudinal direction on the optical member sheet|seat FX serves as a small piece (optical member F1X) of the bonding sheet|seat F5, respectively.

Returning to FIG. 1 and FIG. 2 , blade 31 d is arranged below first conveyor 61 , and extends along at least the entire width of optical member sheet FX in the width direction of optical member sheet FX. The optical member sheet|seat FX is wound up so that 31 d of blades may slide and contact the separator sheet|seat F3a of the optical member sheet|seat FX after a half-cut.

In the 1st bonding apparatus 3, 31 d of blades wind up the 1st optical member sheet|seat F1 at an acute angle at the front-end|tip part of 31 d of blades. When the 1st optical member sheet|seat F1 folds back at an acute angle by the front-end|tip part of 31 d of blades, the small piece (1st optical member F11) of the bonding sheet|seat F5 is isolate|separated from the separation sheet F3a. The front-end|tip part of 31 d of blades is arrange|positioned close to the panel conveyance downstream side of the nip roll 32. As shown in FIG. 1st optical member F11 isolate|separated from separator sheet F3a by blade 31d is introduced between a pair of bonding roller 32a of the nip roller 32, overlapping the lower surface of liquid crystal panel P.

On the other hand, the separation sheet F3a separated from the bonding sheet F5 by the blade 31d faces the winding part 31e. The winding part 31e winds up the separation sheet F3a separated from the bonding sheet F5, and collect|recovers it.

The nip roll 32 bonds the 1st optical member F11 which the conveyance apparatus 31 separated from the 1st optical member sheet|seat F1 to the lower surface of the liquid crystal panel P supplied from the supply apparatus 2. As shown in FIG.

The nip roll 32 has a pair of bonding roller 32a, 32a (the upper bonding roller 32a can move up and down) arrange|positioned mutually axially parallel. A predetermined gap is formed between a pair of bonding rollers 32a, 32a, and the bonding position Q1 of the 1st bonding apparatus 3 is made into this gap.

Liquid crystal panel P is conveyed toward the bonding position Q1 by the supply apparatus 2 from the +X direction side to the -X direction side. Then, liquid crystal panel P and the 1st optical member F11 are superposed and introduced in the gap of bonding roller 32a, 32a. These liquid crystal panel P and the 1st optical member F11 are conveyed to the 2nd conveyor 62, being pinched by a pair of bonding roller 32a. In this embodiment, the 1st optical member bonding body PA1 is formed by bonding the 1st optical member F11 to the backlight side surface of liquid crystal panel P by the nip roll 32.

The rotary inverting device 4 is provided on the panel conveyance downstream side of the second bonding device 5 . The rotation inverting device 4 rotates (rotate (rotation), turn) and inverts (reverses) the 1st optical member bonding body PA1.

The rotation and inversion device 4 includes a rotation device (rotation mechanism) 41 and an inversion device (inversion mechanism) 42 .

The rotation device 41 is arranged above the third conveyor 63 (+Z direction side). The rotation apparatus 41 rotates the rotation direction around the vertical axis of liquid crystal panel P, in the state which adsorb|sucked on the suction pad 41a, 1st optical member bonding body PA1 and 2nd optical member bonding body PA2 mentioned later. The rotation device 41 is comprised so that the orientation (angular position around a predetermined axis) of the liquid crystal panel P to which at least one of the 1st optical member F11 and the 2nd optical member F12 was bonded was changed.

The inversion device 42 is provided on the panel conveyance downstream side of the rotation device 41 . The reversing device 42 uses a pair of support members 42a, 42b to clamp and turn over the first optical member bonding body PA1 and the second optical member bonding body PA2 which are conveyed on the fourth conveyor 64 up and down, and turn the first optical member bonding body PA2 The front and back of member bonding body PA1 and 2nd optical member bonding body PA2 are reversed.

In addition, the rotating and reversing device 4 may be separately provided with the rotating device 41 and the reversing device 42 . For example, the rotating and turning device 4 may also be a rotating and turning device that realizes the rotating function and the turning function by one turning action by having a turning mechanism, and the turning mechanism has a turning axis inclined at 45° relative to the length direction of the conveying line 1L. In this case, since both the rotation process and the inversion process are performed by the inversion mechanism, it is not necessary to separately provide a rotation device.

The second bonding device 5 is provided on the panel conveyance upstream side of the rotary device 41 . The second bonding device 5 bonds the small pieces (second optical member F12 ) of the bonding sheet F5 cut into a predetermined size to the lower surface of the first optical member bonding body PA1 introduced into the bonding position Q2 . combine. The 2nd bonding apparatus 5 is provided with the conveyance apparatus 31 and the nip roll 32 similar to the 1st bonding apparatus 3. As shown in FIG.

The 1st optical member bonding body PA1 rotated and reversed by the rotary inverting apparatus 4 is conveyed toward the bonding position Q2 by the 3rd conveyor 63 from -X direction side to +X direction side. Then, 1st optical member bonding body PA1 and 2nd optical member F12 are superimposed and introduced into the gap of bonding rollers 32a, 32a (bonding position Q2 of the 2nd bonding apparatus 5). These 1st optical member bonding body PA1 and 2nd optical member F12 are sent out to the 2nd conveyor 62 side, being pinched by a pair of bonding roller 32a. In this embodiment, the second optical member F12 is bonded to the display surface side surface of the liquid crystal panel P (the opposite side of the first optical member bonding body PA1 on which the first optical member F11 is bonded) by using the nip roll 32. side surface) to form 2nd optical member bonding body PA2.

Other optical members, such as a brightness enhancement film, are bonded to 2nd optical member bonding body PA2 as needed. Furthermore, 2nd optical member bonding body PA2 forms an optical display device by implementing the mounting process of an electronic component, etc. on the electronic component mounting part of liquid crystal panel P.

In this embodiment, the transport direction of the liquid crystal panel P transported on the transport line 1L is the same as when the first optical member F11 is bonded by the first bonding device 3 (-X direction) and when the second bonding device 5 is bonding the first optical member F11. The two optical members F12 (+X direction) are opposite.

That is, when the 1st optical member F11 is bonded to liquid crystal panel P by the 1st bonding apparatus 3, liquid crystal panel P is conveyed toward the direction of direction V1 shown in FIG. On the other hand, when the 2nd optical member F12 is bonded to liquid crystal panel P by the 2nd bonding apparatus 5, liquid crystal panel P is conveyed toward the direction of direction V2 shown in FIG. The orientation V1 and the orientation V2 are opposite to each other.

The detection device 7 is provided between the first bonding device 3 and the second bonding device 5 . The detection device 7 detects the relative bonding position of the optical member F1X with respect to the liquid crystal panel P. The detection device 7 performs determinations such as whether the position of the optical member F1X is correct (whether the positional deviation is within the tolerance range) on the workpiece (liquid crystal panel P) to which the film is bonded. The detection device 7 is configured to detect the position of the optical member F1X (first optical member F11) relative to the liquid crystal panel P from the first bonding device 3, and to detect the position of the optical member F1X (second optical member F12) relative to the liquid crystal panel P from the second bonding device. The position of the liquid crystal panel P of the closing device 5.

The detection device 7 has a plurality of cameras 7a arranged in a direction (Y direction) perpendicular to the panel conveyance direction. The several cameras 7a are arrange|positioned above the 2nd conveyor 62 (+Z direction side). Camera 7a picks up an image including the edge of optical member F1X on liquid crystal panel P. As shown in FIG. The imaging data of the camera 7a is sent to the control apparatus 9, and it determines whether the bonding position of the optical member F1X on liquid crystal panel P is correct based on this imaging data. The work judged that the position of the optical member F1X on the liquid crystal panel P is incorrect is discharged out of the production line by a discharge unit not shown.

In this embodiment, the 1st bonding apparatus 3 and the 2nd bonding apparatus 5 are arrange|positioned facing each other via the detection apparatus 7. As shown in FIG. The 1st bonding apparatus 3 performs the bonding process of the 1st optical member F11, conveying liquid crystal panel P toward the detection apparatus 7. The 2nd bonding apparatus 5 performs the bonding process of the 2nd optical member F12, conveying liquid crystal panel P toward the detection apparatus 7. The liquid crystal panel P (the first optical member bonding body PA1 and the second optical member bonding body PA2) bonded by the first bonding device 3 and the second bonding device 5 is output to the detection device 7, which can save a lot of time. The time for the liquid crystal panel P to be transported from the bonding device (the first bonding device 3 and the second bonding device 5 ) to the detection device 7 improves production efficiency.

The 3rd conveyor 63 is provided in the panel conveyance downstream side of the 2nd bonding apparatus 5. As shown in FIG. The 3rd conveyor 63 moves 2nd optical member bonding body PA2 from the 2nd bonding apparatus 5 to the rotary inverting apparatus 4 so that 2nd optical member bonding body PA2 may be rotated or inverted by the rotary inverting apparatus 4.

The transport trolley 8 is arranged adjacent to the transport line 1L. For splicing, the transport trolley 8 transports the roll material R1 to the laminating device (the first laminating device 3, the second laminating device 5). For splicing, the roll material R1 is made to stand by at a position adjacent to the conveying line 1L.

The conveyance trolley 8 has the roller support part 8a which supports the coil R1. The conveyance trolley 8 is installed reciprocally between a roll accommodation area (not shown) in which a plurality of coils R1 are accommodated, and a bonding device (first bonding device 3 , second bonding device 5 ). As the transport vehicle 8 , a rail-type or magnetic guide type unmanned transport vehicle (AGV: automated guided vehicle: automatic guided vehicle) can be used.

The transport cart 8 includes a first transport cart 81 and a second transport cart 82 . In order to convey the roll material R1 to the 1st bonding apparatus 3, the 1st conveyance cart 81 can reciprocate between a roll accommodation area and the 1st bonding apparatus 3. In order to convey the coil R1 to the 2nd bonding apparatus 5, the 2nd conveyance trolley 82 can reciprocate between the roll accommodation area and the 2nd bonding apparatus 5. As shown in FIG.

In this embodiment, the control apparatus 9 which is an electronic control apparatus which collectively controls each part of the film bonding system 1 is comprised including a computer system. This computer system includes an arithmetic processing unit such as a CPU, and a storage unit such as a memory or a hard disk.

The control device 9 of the present embodiment includes an interface capable of communicating with an external device of the computer system. The control device 9 may also be connected to an input device capable of inputting an input signal. The aforementioned input device includes input devices such as a keyboard and a mouse, or a communication device capable of inputting data from an external device of the computer system, and the like. The control device 9 may include a display device such as a liquid crystal display that displays the operation status of each part of the film bonding system 1 . The control device 9 can also be connected to a display device.

An operating system (OS) for controlling the computer system is installed in the storage unit of the control device 9 . The program which executes the process which conveys the optical member sheet|seat FX to each part of the film bonding system 1 with high precision by making an arithmetic processing part control each part of the film bonding system 1 is recorded in the storage part of the control apparatus 9. The arithmetic processing unit of the control device 9 can read various information including programs recorded in the storage unit. The control device 9 may include logic circuits such as ASICs that execute various processes necessary for the control of each part of the film bonding system 1 .

The storage unit includes semiconductor memories such as RAM (Random Access Memory) and ROM (Read Only Memory: Read Only Memory), external storage devices such as hard disks, CD-ROM readers, and optical disk-type storage media. The storage unit is functionally set to describe the operation of the supply device 2, the first laminating device 3, the rotation and inverting device 4, the second laminating device 5, the detection device 7, the transport trolley 8, and the roller conveyor 6. The storage area where the program software that controls the sequence is stored, and other various storage areas.

Hereinafter, an example of the operation of the film bonding system 1 will be described with reference to FIGS. 1 , 2 and 7 .

FIG. 7 is a diagram illustrating an operation flow of the film bonding system.

First, liquid crystal panel P is conveyed on the 1st conveyor 61, and is supplied to the 1st bonding apparatus 3 by the supply apparatus 2 (step S1 shown in FIG. 7). Liquid crystal panel P moves toward bonding position Q1 by the 1st conveyor 61 in -X direction so that the short side of the display area P4 may follow a conveyance direction.

The length of the conveyance line 1L along the roller conveyor 6 (first conveyor 61 ) can be shortened by moving the short side of the display area P4 of the liquid crystal panel P along the conveyance direction. This makes it possible to easily realize downsizing of the device.

In addition, liquid crystal panel P may move so that the long side of the display area P4 may follow a conveyance direction. However, from the viewpoint of shortening the length of the transport line 1L along the roller conveyor 6 (first conveyor 61 ), the short side of the display area P4 of the liquid crystal panel P moves along the transport direction. The length of the first side (first length) of the display region of liquid crystal panel P may be substantially the same as the length of the second side (second length) perpendicular to the first side.

Next, the small pieces (first optical member F11) of the bonding sheet F5 cut to a predetermined size are bonded to the lower surface of the liquid crystal panel P introduced into the bonding position Q1 by the first bonding device 3. combined (step S2 shown in FIG. 7). Thereby, 1st optical member bonding body PA1 is formed. The 1st optical member bonding body PA1 moves to the detection apparatus 7 by the 2nd conveyor 62 in the -X direction.

Next, the relative bonding position of the 1st optical member F11 with respect to liquid crystal panel P is detected by the detection apparatus 7 (step S3 shown in FIG. 7). 1st optical member bonding body PA1 judged that the bonding position of the 1st optical member F11 of liquid crystal panel P is correct is moved toward the reversing device 42 by the 3rd conveyor 63 via the rotation device 41 in the -X direction.

Next, by the reversing device 42, the first optical member bonding body PA1 whose display surface side of the liquid crystal panel P is the upper surface is reversed, so that the backlight side of the liquid crystal panel P is the upper surface (step S4 shown in FIG. 7 ) . 1st optical member bonding body PA1 whose backlight side of liquid crystal panel P is an upper surface moves toward the rotation apparatus 41 by the 4th conveyor 64 to + X direction.

Next, 1st optical member bonding body PA1 is rotated 90 degrees by the rotation apparatus 41 in the rotation direction around the vertical axis of liquid crystal panel P (step S5 shown in FIG. 7). Thereby, 1st optical member bonding body PA1 changes into the posture along the long side of the display area P4 along the conveyance direction from the short side of the display area P4 along the conveyance direction.

Next, 1st optical member bonding body PA1 is moved to + X direction toward bonding position Q2 by the 3rd conveyor 63 so that the long side of display area P4 may follow a conveyance direction (step S6 shown in FIG. 7).

Next, with the second bonding device 5, the small pieces (second optical member F12) of the bonding sheet F5 cut into a predetermined size are carried out with respect to the lower surface of the liquid crystal panel P introduced into the bonding position Q2. Bonding (step S7 shown in FIG. 7). Thereby, the 2nd optical member bonding body PA2 which mutually orthogonally arranges (orthogonal polarization arrangement) between the polarization axes (optical axes) of a pair of polarizing films is formed. 2nd optical member bonding body PA2 moves to + X direction toward the detection apparatus 7 by the 2nd conveyor 62. As shown in FIG.

Next, the relative bonding position of the 2nd optical member F12 with respect to liquid crystal panel P is detected by the detection apparatus 7 (step S8 shown in FIG. 7).

Since the plurality of cameras 7a constituting the detection device 7 are arranged in a direction (Y direction) perpendicular to the panel conveyance direction, the second optical member bonding body PA2 moves so that the long side of the display area P4 follows the conveyance direction, thereby reducing the The number of installations of the cameras 7a. Accordingly, it is possible to reduce the cost of the device.

Moreover, 2nd optical member bonding body PA2 may move so that the short side of the display area P4 may follow a conveyance direction. However, 2nd optical member bonding body PA2 moves so that the long side of the display area P4 may follow a conveyance direction from a viewpoint of reducing the number of installations of the camera 7a.

Next, by the third conveyor 63, the second optical member bonding body PA2 judged to be the correct bonding position of the second optical member F12 of the liquid crystal panel P moves in the −X direction toward the rotating device 41 (shown in FIG. 7 ). step S9).

Next, 2nd optical member bonding body PA2 is rotated 90 degrees by the rotation apparatus 41 in the rotation direction around the vertical axis of liquid crystal panel P (step S10 shown in FIG. 7). Thereby, 2nd optical member bonding body PA2 changes into the posture along the short side of the display area P4 along the conveyance direction from the long side of the display area P4 along the conveyance direction.

Next, the fourth conveyor 64 passes through the reversing device 42, and the second optical member bonding body PA2 moves toward the next process in the −X direction with the short side of its display area P4 along the conveying direction (shown in FIG. step S11).

Moreover, in this embodiment, in step S10, although 2nd optical member bonding body PA2 is rotated by the rotating device 41, it is not limited to this, You do not need to rotate. Moreover, although it passes through the reversing device 42, it is not limited to this, The 2nd optical member bonding body PA2 may be reversed. That is, in step S10, 2nd optical member bonding body PA2 may be rotated or reversed according to the purpose of the next process. Depending on the case, 2nd optical member bonding body PA2 may be outputted as it is, without rotating or inverting.

As mentioned above, according to the film bonding system 1 of this embodiment, the rotary inverting device 4 and the detection device 7 are shared by 1st optical member bonding body PA1 and 2nd optical member bonding body PA2. Therefore, miniaturization and cost reduction of equipment can be achieved.

Moreover, the 1st bonding apparatus 3 and the 2nd bonding apparatus 5 are comprised so that they may be arrange|positioned facing each other across the detection apparatus 7, and the liquid crystal panel P after bonding faces the detection apparatus 7 directly. Therefore, the time to convey liquid crystal panel P from a bonding apparatus (1st bonding apparatus 3, 2nd bonding apparatus 5) to the detection apparatus 7 can be omitted, and production efficiency can be improved.

In addition, in this embodiment, the structure of the bonding apparatus (the 1st bonding apparatus 3, the 2nd bonding apparatus 5) demonstrated the structure which performs the bonding process of liquid crystal panel P and optical member F1X using the nip roll 32. , but not limited to this. For example, the bonding device (the first bonding device 3, the second bonding device 5) may temporarily bond the optical member peeled off from the separator to a bonding part such as a bonding head or a bonding cylinder as a transfer member. The bonding part is positioned with respect to the liquid crystal panel P, and the optical member pasted on the bonding part is bonded on the liquid crystal panel.

Preferred embodiments of the present invention have been described above with reference to the drawings, but the embodiments of the present invention are not limited thereto. The shapes and combinations of the constituent members shown in the above-mentioned embodiments are examples, and various changes can be made in accordance with design requirements and the like without departing from the scope of the present invention.

Symbol Description

1...Film bonding system (production system for optical display equipment), 3...First bonding device, 4...Rotating and flipping device, 5...Second bonding device, 6...Roller conveyor (moving device), 7... Detection device, 41...rotating device, 42...reverse device, F11...first optical component, F12...second optical component, F1X...optical component, 1L...conveying line, V1...direction, V2...direction, PA1...first optical component Member bonding body, PA2...2nd optical member bonding body.

Claims (6)

1. the production system of an optical display means, this optical display means the first optical component is fitted in optics display the 1st of part, the second optical component is fitted in the 2nd of described optics display part and formed, the feature of the production system of described optical display means is, comprising:

First laminating apparatus, its described first optical component is fitted in described optics display part described 1st to form the first optical component fitting body;

Rotary turning device, it makes described first optical component fitting body rotate and upset;

Second laminating apparatus, its described second optical component is fitted in described optics display part of described first optical component fitting body described 2nd to form the second optical component fitting body; And

Mobile device, in order to utilize described rotary turning device to make described second optical component fitting body rotate or upset, described mobile device makes described second optical component fitting body move to described rotary turning device from described second laminating apparatus.

2. the production system of optical display means as claimed in claim 1, is characterized in that,

Between described first laminating apparatus and described second laminating apparatus, comprise and detect described first optical component relative to the relative bonding position of described optics display part and the described second optical component pick-up unit relative to the relative bonding position of described optics display part

Described first laminating apparatus, while carried towards described pick-up unit by described optics display part, carries out the laminating process of described first optical component,

Described second laminating apparatus, while carried towards described pick-up unit by described optics display part, carries out the laminating process of described second optical component.

3. the production system of optical display means as claimed in claim 2, is characterized in that,

Along pipeline, be configured according to the order of described first laminating apparatus, described pick-up unit, described second laminating apparatus, described rotary turning device.

4. the production system of the optical display means as described in any one in claims 1 to 3, is characterized in that,

Described rotary turning device comprises: make the whirligig that described first optical component fitting body and described second optical component fitting body rotate; And

Make the turning device of described first optical component fitting body and described second optical component fitting body upset.

5. the production system of an optical display means, this optical display means the first optical component is fitted in optics display the 1st of part, the second optical component is fitted in the 2nd of described optics display part and formed, the feature of the production system of described optical display means is, comprising:

First laminating apparatus, its described first optical component is fitted in described optics display part described 1st to form the first optical component fitting body;

Second laminating apparatus, its described second optical component is fitted in described optics display part of described first optical component fitting body described 2nd to form the second optical component fitting body; And

Pick-up unit, it detects described first optical component relative to the relative bonding position of described optics display part and the described second optical component relative bonding position relative to described optics display part,

Described pick-up unit is configured between described first laminating apparatus and described second laminating apparatus,

Described first laminating apparatus, while carried towards described pick-up unit by described optics display part, carries out the laminating process of described first optical component,

Described second laminating apparatus, while carried towards described pick-up unit by described optics display part, carries out the laminating process of described second optical component.

6. the production system of optical display means as claimed in claim 5, is characterized in that,

Comprise the rotary turning device making described first optical component fitting body rotate and overturn,

Along pipeline, be configured according to the order of described first laminating apparatus, described pick-up unit, described second laminating apparatus, described rotary turning device.