TWI643169B - Optical display device production system - Google Patents

Abstract

The production system of the optical display device of the present invention is an optical display device formed by bonding a first optical component to a first surface of the optical display component and bonding the second optical component to a second surface of the optical display component The production system includes: a bonding device that bonds the first optical component to the first surface of the optical display component to form an optical component bonding body; a rotation inverting device, a rotating and inverting optical component bonding body; and the first The moving device moves the optical component bonding body from the bonding device to the rotation inverting device, and rotates the rotation device by rotating the rotation device in order to attach the second optical component to the second surface of the optical display component The inverted optical component bonding body is moved from the rotation reversing device to the bonding device.

Description

Optical display device production system

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

The present invention claims priority based on Japanese Patent Application No. 2013-165501, filed on Jan.

As a method of bonding a polarizing plate (optical module) to a liquid crystal panel (optical display member), a bonding method called a roll-to-panel (RTP) method is known (for example, refer to the patent document) 1). This bonding method is a method in which a long polarizing plate rolled out from a take-up reel is cut to a specific size and directly attached to a liquid crystal panel conveyed on a production line. In the front and back surfaces of the liquid crystal panel, in order to bond the polarizing plates having different polarization axes, the front and back surfaces of the bonding device for providing the polarizing plate are used.

Patent Document 1: Japanese Patent No. 4669070.

In the film bonding system in which the polarizing plate is bonded to both surfaces of the liquid crystal panel, in addition to the above-described two types of bonding apparatuses, the conveying device for conveying the liquid crystal panel, the rotating device for rotating the liquid crystal panel, and the reverse of the reverse liquid crystal panel are further provided. The device and various devices such as a detecting device that detects a relative position of the liquid crystal panel and the polarizing plate (detection of poor adhesion). Usually, the reverse side is attached, the poor fit is detected, The processing is performed in the order of rotation, reversal, surface bonding, poor adhesion detection, rotation, and reversal. The processing devices that should be processed are sequentially arranged, the equipment is enlarged, and initial investment or maintenance costs are also increased. .

Aspects of the present invention provide a production system for an optical display device that can achieve miniaturization and low cost of the device.

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

(1) A production system for an optical display device according to a first aspect of the present invention, wherein the first optical component is attached to the first surface of the optical display component, and the second optical component is attached to the optical display component. The production system of the optical display device formed by the second surface comprises: a bonding device, the first optical component is attached to the first surface of the optical display component to form an optical component bonding body; a rotation reversing device, rotating And a first moving device for moving the optical component bonding body from the bonding device to the rotation inverting device, and bonding the second optical component to the optical display component; and the first moving device On the second side, the optical component bonding body that is rotated and reversed by the rotation inverting device is moved from the rotation inverting device to the bonding device.

(2) The production system of the optical display device according to the above (1), further comprising: a housing portion that accommodates the optical component bonding body; and a second moving device that attaches the optical component to the rotation inverting device While moving to the accommodating portion, the optical module bonding body is moved from the accommodating portion to the rotation reversing device.

(3) The production system of the optical display device according to (1) or (2), wherein the rotation reversing device preferably further comprises: a rotating device that rotates the optical component bonding body; and a reversing device that reverses The optical component is bonded to the body.

(4) The production system of the optical display device according to (3) above, wherein the rotation is reversed Preferably, the rotating device further comprises detecting means between the rotating device and the inverting device for detecting a relative bonding position with respect to the first optical component of the optical display member and a relative position of the second optical component relative to the optical display member Fit the position.

(5) The production system of an optical display device according to any one of the above (1), wherein the optical display member includes a first side having a first length and a second side having a second length; The bonding device is capable of switching a first roll of the strip-shaped first optical component layer corresponding to the width of the first length and a second roll of the second optical component layer of the tape corresponding to the width of the second length a roll drum; the bonding device attaches the first optical component obtained by cutting the first optical component layer wound from the first roll cylinder to the optical display component at a length corresponding to the second length The first side of the optical display member is bonded to the second optical component obtained by cutting the second optical component layer wound from the second roll cylinder at a length corresponding to the first length Two sides.

According to the aspect of the invention, it is possible to provide a production system of an optical display device which can achieve miniaturization and low cost of the device.

1‧‧‧Film bonding system

2‧‧‧Supply device

3‧‧‧Fitting device

4‧‧‧Rotary reversal device

5‧‧‧Roller conveyor

6‧‧‧Second mobile device

7‧‧‧Detection device

7a‧‧‧ camera

8‧‧‧Transportation platform

8a‧‧‧Roller Support

9‧‧‧Control device

10‧‧‧First Storage Department

11‧‧‧Second Storage Department

20‧‧‧ Panel Holder

20a‧‧‧Adsorption station

31‧‧‧Transporting device

31a‧‧‧Roller Holder

31b‧‧‧Guide roller

31c‧‧‧cutting device

31d‧‧‧blade

31e‧‧‧Winding Department

32‧‧‧ pinch roller

32a‧‧‧Adhesive roller

41‧‧‧Rotating device

41a‧‧‧Adsorption station

42‧‧‧Reversal device

42a‧‧‧Support

42b‧‧‧Support

51‧‧‧First conveyor

52‧‧‧Second conveyor

53‧‧‧ Third conveyor

54‧‧‧fourth conveyor

61‧‧‧Conveyor

62‧‧‧Transfer machine

F1‧‧‧First optical component layer

F11‧‧‧First optical component

F12‧‧‧Second optical component

F1a‧‧‧Optical component body

F2‧‧‧Second optical component layer

F2a‧‧‧Adhesive layer

F3a‧‧‧Separation layer

F4a‧‧‧Surface protection film

F5‧‧‧Fitting layer

F6‧‧‧ polarizer

F7‧‧‧ first film

F8‧‧‧second film

FX‧‧‧ optical component layer

G‧‧‧Border Department

L1‧‧‧ cutting line

L2‧‧‧ cutting line

P‧‧‧ LCD panel

P1‧‧‧ first substrate

P2‧‧‧second substrate

P3‧‧‧ liquid crystal layer

P4‧‧‧ display area

PA1‧‧‧First optical component fit

PA2‧‧‧Second optical component fit

Q‧‧‧Fit position

R1‧‧‧ Roller

R11‧‧‧First roll drum

R12‧‧‧Second roll drum

R2‧‧‧Separation roller

S1-S16‧‧‧ steps

Fig. 1 is a plan view showing a schematic configuration of a film bonding system of the present embodiment.

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

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

Figure 4 is a cross-sectional view taken along line A-A of Figure 3.

Fig. 5 is a partial cross-sectional view of the optical component layer attached to the liquid crystal panel.

Fig. 6 is a schematic view showing the operation of the cutting device.

Figure 7 is a schematic diagram of the action flow of the film bonding system.

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

In addition, in all of the following drawings, the size, the ratio, and the like of each constituent unit are appropriately changed in order to facilitate viewing of the drawings. In the following description and the drawings, the same reference numerals are given to the same or corresponding elements, and the repeated description is omitted.

(production system of optical display device)

In the present embodiment, a film bonding system which is a part of a production system of an optical display device will be described. In the film bonding system, for example, a film-shaped optical component such as a polarizing film, an antireflection film, or a light diffusing film is bonded to a panel-shaped optical display member such as a liquid crystal panel or an organic electroluminescence (OEL) panel. In the present embodiment, as an example, a configuration of a liquid crystal display device (optical display device) produced by bonding polarizing films (optical modules) to both surfaces of a liquid crystal panel (optical display member) will be exemplified.

Fig. 1 is a plan view showing a schematic configuration of a film bonding system of the present embodiment. Fig. 2 is a side view showing a schematic configuration of a film bonding system of the embodiment.

In the following description, the XYZ orthogonal coordinate system is set corresponding to the demand, and the positional relationship of each component is described with reference to the XYZ orthogonal coordinate system. In the present embodiment, the X direction is the transport direction of the liquid crystal panel of the optical display member (the transport direction of the liquid crystal panel in the roller conveyor (first moving device) to be described later), and the Y direction is the in-plane and X direction of the liquid crystal panel. The direction of intersection (the width direction of the liquid crystal panel), and the Z direction is a direction orthogonal to the X direction and the Y direction.

As shown in FIGS. 1 and 2, the film bonding system 1 of the present embodiment is provided with a manufacturing process as a manufacturing line of the liquid crystal panel P. Each part of the film bonding system 1 is integrally controlled by a control device 9 as an electronic control unit. Film bonding system 1 (optical display device production The system is divided into a bonding system, including a bonding apparatus 3, and the like; and a transport system (optical display unit transport system, liquid crystal panel transport system), including a rotation reversing device 4, a roller conveyor 5 (first mobile device), The second moving device 6, the detecting device 7, the rotating device 41 (rotating mechanism), the inverting device 42 (reverse mechanism), and the like.

Fig. 3 is a plan view of the liquid crystal panel P seen from the thickness direction of the liquid crystal layer P3 of the liquid crystal panel P.

As shown in FIG. 3, the liquid crystal panel P includes a first substrate P1 having a rectangular plan view, a second substrate P2 having a small rectangular shape disposed opposite to the first substrate P1, and a liquid crystal layer P3 enclosing the first substrate P1. Between the second substrate P2 and the second substrate. The liquid crystal panel P has a rectangular shape along the outer peripheral shape of the first substrate P1 in plan view, and a region inside the outer periphery of the liquid crystal layer P3 in plan view is the display region P4.

Figure 4 is a cross-sectional view taken along line A-A of Figure 3.

As shown in FIG. 4, on the front surface (first surface) of the liquid crystal panel P and the reverse surface (second surface) of the liquid crystal panel P, a strip-shaped first optical component layer F1 and a strip are appropriately bonded The strip-shaped second optical component layer F2 (refer to FIG. 1, hereinafter collectively referred to as optical component layer FX) is cut by the first optical component F11 and the second optical component F12 (hereinafter collectively referred to as optical component F1X). In the present embodiment, the first optical component F11 as a polarizing film and the polarizing film are bonded to each other on the backlight side (first surface) of the liquid crystal panel P and the display surface side (second surface) of the liquid crystal panel P. Two optical components F12.

A frame portion G having a specific width is provided on the outer side of the display region P4, and a sealant or 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 is disposed.

Fig. 5 is a partial cross-sectional view of the optical component layer FX bonded to the liquid crystal panel P.

As shown in Fig. 5, the optical component layer FX has a film-like optical component body F1a, an adhesive layer F2a provided on the first surface (upper side of Fig. 5) of the optical component body F1a, and an adhesive layer F2a interposed therebetween. The separation layer F3a laminated on the first surface of the optical module body F1a and the surface protection film F4a laminated on the second surface (the lower side of FIG. 5) of the optical module body F1a are separated. Optical component body F1a The function of the polarizing plate is across the entire area of the display area P4 of the liquid crystal panel P and the peripheral area of the display area P4. In addition, for convenience of illustration, the hatching of each layer in Fig. 5 is omitted.

The optical module main body F1a is bonded to the liquid crystal panel P via the adhesive layer F2a in a state where the adhesive layer F2a remains on the first surface of the optical module main body F1a and is separated from the separation layer F3a. Hereinafter, a portion from which the separation layer sheet F3a is removed from the optical module layer FX is referred to as a bonding layer sheet F5.

The separation layer F3a protects the adhesive layer F2a and the optical component body F1a before being separated from the adhesive layer F2a. The surface protective film F4a is bonded to the liquid crystal panel P together with the optical module body F1a. The surface protective film F4a is disposed on the opposite side of the liquid crystal panel P with respect to the optical module body F1a to protect the optical module body F1a. The surface protective film F4a is separated from the optical module body F1a at a specific time point. Further, the optical component layer FX may be a structure that does not include the surface protective film F4a, and the surface protective film F4a may be a structure that cannot be separated from the optical component body F1a.

The optical module body F1a has a sheet-like polarizing mirror F6, a first film F7 joined by an adhesive or the like on the first surface of the polarizing mirror F6, and a second film bonded to the second surface of the polarizing mirror F6 by an adhesive or the like. Film F8. The first film F7 and the second film F8 protect the protective film such as the polarizer F6.

The optical module body F1a may have a single layer structure composed of one layer of optical layers, or may be a laminated structure in which a plurality of optical layers are laminated to each other. In addition to the polarizer F6, the optical layer may be a retardation film or a luminance increasing film. At least one of the first film F7 and the second film F8 may be subjected to a surface treatment to obtain an anti-glare effect including a hard coat treatment or an anti-glare treatment for protecting the outermost layer of the liquid crystal display unit. The optical module body F1a may not include at least one of the first film F7 and the second film F8. For example, when the first film F7 is omitted, the separation layer F3a may be bonded to the first surface of the optical module body F1a via the adhesive layer F2a.

Next, the film bonding system 1 of the present embodiment will be described in detail.

As shown in FIG. 1 and FIG. 2, the film bonding system 1 of the present embodiment includes the liquid crystal panel P on the upstream side (+X direction side) in the transport direction of the liquid crystal panel P on the right side in the drawing to the left side in the drawing. Transporter Driven roller conveyor 5 (first conveyor 51, second conveyor 52, third conveyor 53, and fourth conveyor) that transport liquid crystal panel P in a horizontal state to the downstream side (-X direction side) 54). Here, the roller conveyor 5 corresponds to the first moving device.

The first conveyor 51, the second conveyor 52, the third conveyor 53, and the fourth conveyor 54 are configured to be switchable between the -X direction and the +X direction in the transport direction of the liquid crystal panel P, respectively. The liquid crystal panel P is conveyed in the +X direction and the -X direction, and the liquid crystal panel P is carried in from the end portion on the +X direction side of the roller conveyor 5 and is carried out from the end portion on the -X direction side. For the sake of convenience, the +X direction side of the roller conveyor 5 (first moving device) is referred to as "panel transport upstream side", and the -X direction side of the roller conveyor 5 (first moving device) is referred to as "panel transport downstream". side".

The film bonding system 1 of the present embodiment includes a supply device 2, a bonding device 3, a rotation reversing device 4, a detecting device 7, a second moving device 6, and a housing portion (the first housing portion 10 and the second housing portion 11). The transport platform 8 and the control device 9 are transported.

The supply device 2 sucks the liquid crystal panel P conveyed by the first conveyor 51 and supplies it to the bonding apparatus 3. The supply device 2 has a panel holding portion 20.

The panel holding portion 20 aligns the liquid crystal panel while movably holding the liquid crystal panel in the vertical direction and the horizontal direction. For example, the panel holding portion 20 is suction-held by vacuum suction of the upper side surface of the liquid crystal panel P. The panel holding unit 20 moves in a state where the adsorption stage 20a sucks and holds the liquid crystal panel P, and conveys the liquid crystal panel P. The panel holding unit 20 releases the adsorption holding after the conveyance is completed. In the first conveyor 51, the liquid crystal panel P is transported along the short side of the display region P4 as a transport direction.

The supply device 2 can also perform calibration (determination of position) of the liquid crystal panel P. In this case, for example, a calibration camera is provided at the panel holding portion 20. In the state where the panel holding unit 20 holds and raises the liquid crystal panel P, the calibration camera photographs the calibration mark or the front end shape of the liquid crystal panel P and the like. The photographing data of the calibration camera is transmitted to the control device 9, and the panel holding portion 20 is actuated in accordance with the photographing data, and the liquid crystal panel P of the bonding device 3 (nip roller 32) of the transporting portion is calibrated. which is, The liquid crystal panel P is conveyed to the bonding apparatus 3 in a state of being slid in a direction in which the bonding apparatus 3 is transported, a direction orthogonal to the conveyance direction, and a rotation direction about the vertical axis of the liquid crystal panel P.

The bonding apparatus 3 is provided on the downstream side of the panel conveyance of the supply apparatus 2. The bonding apparatus 3 is bonded to the lower surface of the liquid crystal panel P which is introduced to the bonding position Q, and is bonded to the layer (optical module F1X) of the bonding layer sheet F5 cut into a specific size.

The bonding apparatus 3 is provided with the conveyance apparatus 31 and the pinch roller 32.

The transport device 31 winds up the optical component layer FX from the take-up reel R1 of the optical component layer FX, and transports the optical component layer FX in the longitudinal direction of the optical component layer FX. The conveying device 31 conveys the bonding layer sheet F5 by using the separation layer sheet F3a as a carrier.

The conveying device 31 includes a drum holding portion 31a, a plurality of guide rollers 31b, a cutting device 31c, a blade 31d, and a winding portion 31e.

The roller holding portion 31a holds the roll drum R1 in which the strip-shaped optical component layer FX is wound, and winds up the optical component layer FX in the longitudinal direction of the optical component layer FX.

The plurality of guide rollers 31b wind the optical component layer FX to guide the optical component layer FX wound from the take-up reel R1 along a specific transport path.

The cutting device 31c applies a half cut to the optical component layer FX on the transport path.

The blade 31d winds the half-cut optical component layer FX at an acute angle, and separates the bonded layer sheet F5 from the separation layer sheet F3a, and supplies the bonded layer sheet F5 to the bonding position Q.

The take-up portion 31e holds the separation roller R2 that winds up the separation layer sheet F3a that is uniquely passed after passing through the blade 31d.

The roller holding portion 31a located at the beginning of the conveying device 31 and the winding portion 31e located at the end of the conveying device 31 are, for example, driven in synchronization with each other. Thereby, the roller holding portion 31a winds up the optical module layer FX in the conveyance direction of the optical module layer FX, and the winding portion 31e winds up the separation layer sheet F3a that has passed through the blade 31. Hereinafter, in the conveying device 31, the conveying direction of the optical component layer FX (separating layer sheet F3a) The upstream side is referred to as a layer conveyance upstream side, and the downstream side in the conveyance direction is referred to as a sheet conveyance downstream side.

Each of the guide rollers 31b can change the direction in which the optical component layer FX is conveyed along the transport path, and can move at least one of the plurality of guide rollers 31b to adjust the tension of the optical component layer FX during transport.

A tension roller (not shown) may be disposed between the roller holding portion 31a and the cutting device 31c. The tension roller absorbs the winding amount of the optical component layer FX conveyed from the roller holding portion 31a while the cutting device 31c cuts the optical module layer FX. In other words, the tension roller adjusts the amount of winding of the optical component layer FX on the cutting device 31c.

Fig. 6 is a schematic view showing the operation of the cutting device 31c of the present embodiment.

As shown in Fig. 6, the cutting device 31c performs the optical component layer FX across the entire width in the width direction orthogonal to the longitudinal direction of the optical component layer FX when the optical component layer FX of a predetermined length is wound up. One of the thickness directions is partially cut off by a half cut. The cutting device 31c of the present embodiment is provided for feeding/retracting from the opposite side of the separation layer sheet F3a to the optical module layer FX with respect to the optical module layer FX.

The cutting device 31c is half-cut, that is, the tension in the optical component layer FX is conveyed, and the optical component layer FX (separation layer sheet F3a) is not broken or broken (the specific thickness separation layer sheet F3a remains). The front and rear positions of the cutting blade are adjusted, and the cutting is performed until the position near the interface between the adhesive layer F2a and the separation layer F3a. Alternatively, a laser device can be used instead of cutting the blade.

In the half-cut optical component layer FX, the optical module body F1a and the surface protective film F4a are cut in the thickness direction of the optical component layer FX to form a cutting line L1 that spans the entire width in the width direction of the optical component layer FX. L2. The cutting lines L1, L2 are formed in a plurality of side by side in the longitudinal direction of the strip-shaped optical component layer FX. For example, in the case of a bonding process of transporting the liquid crystal panel P of the same size, a plurality of cutting lines L1, L2 are formed at equal intervals in the longitudinal direction of the optical component layer FX. The optical component layer FX divides a plurality of partitions in the longitudinal direction by a plurality of cutting lines L1, L2. In the longitudinal direction of the optical component layer FX, the adjacent ones of the pair of cutting lines L1, L2 are respectively To fit one of the plies F5 (optical component F1X).

Returning to Fig. 2, the blade 31d is disposed below the first conveyor 51, and is formed to extend at least the entire width of the optical module layer FX in the width direction of the optical module layer FX. The optical component layer FX is wound in a sliding contact with the blade 31d at the separation layer F3a of the optical component layer FX after the half cut.

In the bonding apparatus 3, the blade 31d is wound around the optical component layer FX at an acute angle at the end before the blade 31d. When the end of the blade 31d is folded back at an acute angle, the optical component layer FX separates the layer (optical component F1X) of the bonding layer F5 from the separation layer F3a. The front end of the blade 31d is disposed on the downstream side of the panel conveyance close to the nip roller 32. The optical module F1X separated from the separation layer sheet F3a by the blade 31d is superposed on the lower side surface of the liquid crystal panel P, and is guided between the pair of bonding rollers 32a of the nip roller 32.

On the other hand, the separation layer sheet F3a separated from the bonding layer sheet F5 by the blade 31d faces the winding portion 31e. The winding unit 31e winds up the separated layer sheet F3a separated from the bonding layer sheet F5 and collects it.

The nip roller 32 causes the conveying device 31 to bond the optical module F1X separated from the first optical module layer F1 to the lower side surface of the liquid crystal panel P supplied from the supply device 2.

The nip roller 32 has a pair of bonding rolls 32a and 32a which are arranged in parallel with each other in the axial direction (the upper bonding roll 32a can move up and down). A specific gap is formed between the pair of bonding rollers 32a and 32a, and the gap is the bonding position Q of the bonding apparatus 3.

The liquid crystal panel P is conveyed from the +X direction side to the -X direction side by the supply device 2 toward the bonding position Q. Then, the liquid crystal panel P and the optical module F1X are laminated and introduced into each other in the gap between the bonding rolls 32a and 32a. The liquid crystal panel P and the optical unit F1X are sandwiched between the pair of bonding rollers 32a and are transported to the second conveyor 52.

In the embodiment, the bonding device 3 can switch the first roll drum R11 and the second The roll drum R12, the first roll roll R11 winds out the strip-shaped first optical component layer F1 corresponding to the width of the long side (first side) of the display area of the liquid crystal panel P, and the second roll roll R12 is rolled out A strip-shaped second optical component layer F2 corresponding to the width of the short side (second side) of the display region of the liquid crystal panel P. The bonding device 3 has a first mode in which the first optical component layer F1 is bonded to the liquid crystal panel P (optical display component); and in the second mode, the second optical component layer F2 is bonded to the liquid crystal panel P (optical display component) Between the first mode and the second mode, the liquid crystal panel P in the bonding device 3 has a positional difference. Specifically, between the first mode and the second mode, the liquid crystal panel P is inverted, and the direction has a difference of 90°.

At the time of loading the first roll drum R11, the bonding apparatus 3 cuts off the length of the short side of the display area of the liquid crystal panel P (second length), and cuts off the first roll of the first roll drum R11. The first optical component F11 obtained by the optical component layer F1 is attached to the first surface of the liquid crystal panel P. In the present embodiment, the first optical module F11 is bonded to the surface on the backlight side of the liquid crystal panel P by the nip roller 32 to form the first optical component bonding body PA1 (optical component bonding body).

When the second roll drum R12 is loaded, the bonding apparatus 3 cuts off the length of the long side of the display area of the liquid crystal panel P (first length), and cuts off the second roll from the second roll drum R12. The second optical component F12 obtained by the two optical component layers F2 is attached to the second surface of the liquid crystal panel P. In the present embodiment, the second optical module F12 is bonded to the surface on the display surface side of the liquid crystal panel P by the nip roller 32 (opposing the surface of the first optical component F11 to which the first optical component bonding body PA1 is bonded) The side surface) to form the second optical component bonding body PA2 (optical display device). Further, the length (first length) of the first side of the display region of the liquid crystal panel P and the length (second length) of the second side orthogonal to the first side may be substantially the same.

In addition, the bonding device 3 preferably switches between the first roll drum R11 and the second roll roll R12, and the first roll roll R11 winds out the strip-shaped first optical corresponding to the width of the short side of the display area of the liquid crystal panel P. The component layer F1 and the second reel roller R12 wind the strip-shaped second optical component layer F2 corresponding to the width of the long side of the display region of the liquid crystal panel P.

In this case, when the first roll drum R11 is loaded, the bonding device 3 cuts off the first optical component taken up from the first roll drum R11 with the length of the long side of the display area corresponding to the liquid crystal panel. The first optical component F11 obtained by the layer F1 is attached to the first surface of the liquid crystal panel P.

On the other hand, at the time of loading of the second roll drum R12, the bonding apparatus 3 cuts off the second roll drawn from the second roll drum R12 in accordance with the length of the short side of the display area of the liquid crystal panel P. The second optical component F12 obtained by the optical component layer F2 is attached to the second surface of the liquid crystal panel P.

The rotation reversing device 4 is provided on the downstream side of the panel conveyance of the bonding apparatus 3. The rotation inverting device 4 rotates (rotates, turns) and reverses (inverts) the first optical component bonding body PA1.

The rotation reversing device 4 includes a rotation device 41 (rotation mechanism) and a reversing device 42 (reverse mechanism).

The rotating device 41 is disposed above the second conveyor 52 (+Z direction side). The rotation device 41 rotates in a rotation direction about the vertical axis of the liquid crystal panel P in a state where the adsorption stage 41a adsorbs the first optical module bonding body PA1 and the second optical component bonding body PA2. The rotating device 41 is configured to change the direction (angle position around a specific axis) of the liquid crystal panel P to which at least one of the first optical component F11 and the second optical component F12 is bonded.

In the present embodiment, the rotating device 41 and the second conveyor 52 are respectively perpendicular to the transport direction (X direction) of the roller conveyor 5, the direction orthogonal to the transport direction (Y direction), and the vertical direction around the liquid crystal panel P. The structure in which the direction of rotation of the shaft rotates. The second conveyor 52 is, for example, a cross conveyor.

Further, it is preferable that only the rotating device 41 is configured to be movable in the rotational direction of the vertical axis of the liquid crystal panel P, and only the second conveyor 52 is capable of being transported in the transport direction (X direction) with respect to the roller conveyor 5, and transporting A structure in which the directions orthogonal to the direction (Y direction) are respectively moved.

The reversing device 42 is provided on the downstream side of the panel conveyance of the rotating device 41. The inverting device 42 is turned over by the first optical component bonding body PA1 and the second optical component bonding body PA2 carried by the fourth conveyor 54 by the pair of supporting members 42a and 42b. An optical component fit The front and back of the body PA1 and the second optical component bonding body PA2.

Further, the rotation reversing device 4 does not need to have the rotation device 41 and the reversing device 42 individually. For example, the rotation reversing device 4 may be configured to have a reversing mechanism having an inclination of 45° with respect to the conveying direction (X direction) of the liquid crystal panel P as an inversion axis, and realize the rotation function and the reversal in one reversal operation. Functional rotation reversal device. In this case, by the reversing mechanism, it is not necessary to separately provide the rotating device in order to perform both the rotation processing and the inversion processing.

In the present embodiment, the roller conveyor 5 moves the first optical module bonding body PA1 from the bonding apparatus 3 to the rotation inverting device 4, and bonds the second optical module F12 to the display surface side of the liquid crystal panel P. The first optical component bonding body PA1 rotated and reversed by the rotation reversing device 4 is moved from the rotation reversing device 4 to the bonding device 3.

The detecting device 7 is provided between the rotating device 41 and the inverting device 42. The detecting device 7 detects a relative bonding position with respect to the optical component F1X of the liquid crystal panel P. The detecting device 7 judges whether or not the position of the optical component F1X in the workpiece (liquid crystal panel P) to which the film is bonded is correct (whether the positional deviation is within the tolerance range) or the like.

The detecting device 7 has a plurality of cameras 7a arranged in a direction (Y direction) orthogonal to the panel conveying direction. The plural camera 7a is disposed above the third conveyor 53 (+Z direction side). The camera 7a captures an image including the edge of the optical component F1X in the liquid crystal panel P. The photographing data of the camera 7a is sent to the control device 9, and based on the photographing data, it is determined whether or not the bonding position of the optical unit F1X in the liquid crystal panel P is correct. The workpiece that is judged to be in an incorrect position with respect to the optical module F1X of the liquid crystal panel P is discharged to the outside of the production line by a discharge unit not shown.

The second moving device 6 is disposed on the rotating device 41 (second conveyor 52) in a direction (+Y direction) orthogonal to the panel conveying direction (X direction) in the roller conveyor 5 (first moving device) Neighboring location. The second moving device 6 moves the first optical component bonding body PA1 from the rotation reversing device 4 to the accommodating portion (the first accommodating portion 10 and the second accommodating portion 11), and simultaneously fixes the first optical component bonding body PA1 The accommodating portion (the first accommodating portion 10 and the second accommodating portion 11) is moved to the rotation inverting device 4. The accommodating portion (the first accommodating portion 10 and the second accommodating portion 11) is configured to temporarily house the liquid crystal panel P (for example, the liquid crystal panel P to which at least one of the first optical component F11 and the second optical component F12 is bonded). In one example, the rotating device 41 (rotating mechanism) is disposed between (a) the bonding device 3 and the accommodating portion (the first accommodating portion 10 and the second accommodating portion 11), and (b) the reversing device 42 (reverse) The transfer mechanism is disposed on a transport path of at least one of the liquid crystal panels between the accommodating portion (the first accommodating portion 10 and the second accommodating portion 11).

The first optical component bonding body PA1 is moved by the rotation inverting device 4 (rotating device 41) to the liquid crystal panel P before being moved to the accommodating portion (the first accommodating portion 10 and the second accommodating portion 11) by the second moving device 6. The direction of rotation of the vertical axis is rotated by 90°. Thereby, the position of the first optical component bonding body PA1 from the transport direction (Y direction) along the long side of the display region P4 becomes the position along the transport direction (Y direction) of the short side of the display region P4. Therefore, the moving distance of the second mobile device 6 can be shortened to achieve miniaturization of the device.

The second moving device 6 includes a conveyor 61 and a transfer machine 62.

The conveyor 61 is disposed at a position adjacent to the rotating device 41 (second conveyor 52) in a direction (+Y direction) orthogonal to the panel conveying direction of the roller conveyor 5 (first moving device). The conveyor 61 moves the first optical unit bonding body PA1 from the rotation reversing device 4 to the transfer machine 62, and moves the first optical unit bonding body PA1 from the transfer machine 62 to the rotation reversing device 4.

The transfer machine 62 is provided to be movable between the conveyor 61 and the accommodating portion (the first accommodating portion 10 and the second accommodating portion 11).

The transfer unit 62 moves the first optical component bonding body PA1 from the conveyor 61 to the accommodating portion (the first accommodating portion 10 and the second accommodating portion 11), and the first optical component bonding body PA1 is removed from the accommodating portion (first The accommodating portion 10 and the second accommodating portion 11) are moved to the conveyor 61.

The first housing portion 10 and the second housing portion 11 are provided at positions adjacent to the Y direction of the roller conveyor 5 . The first housing portion 10 and the second housing portion 11 are disposed to face each other with the conveyor 61 interposed therebetween. Each of the first housing portion 10 and the second housing portion 11 accommodates a specific number (for example, 50) of the first optical component bonding bodies PA1.

The transport platform 8 is disposed at a position adjacent to the roller conveyor. The conveyance platform 8 conveys the roll drum R1 for joining to the bonding apparatus 3. The roll drum R1 waits at a position adjacent to the bonding device 3 for joining.

The transport platform 8 has a drum support portion 8a that supports the roll drum R1. The transport platform 8 is provided to be reciprocally movable between a drum housing space (not shown) in which the plurality of reel drums R1 are stored and the bonding apparatus 3. As the transport platform 8, an orbital or magnetic induction type unmanned transport vehicle (AGV) can be used.

In the present embodiment, the control device 9 of the electronic control device that controls the entire portion of the film bonding system 1 is included in the computer system. The computer system includes an arithmetic processing unit such as a central processing unit (CPU), and a memory unit such as a memory or a hard disk.

The control device 9 of the present embodiment includes an interface that can communicate with an external device of the computer system. At the control device 9, an input device capable of inputting an input signal can be connected. The above input device includes an input device such as a keyboard or a mouse, or a communication device that can input data from an external device of the computer system. The control device 9 may also 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 the display device.

The memory unit of the control device 9 is equipped with an operating system (OS) that controls the computer system. At the memory unit of the control device 9, the arithmetic processing unit controls each part of the film bonding system 1 to store a program for executing the process of accurately transporting the optical component layer FX to each part of the film bonding system 1. Various pieces of information including a program stored in the memory unit can be read by the arithmetic processing unit of the control device 9. The control device 9 may include a logic circuit such as an application specific integrated circuit (ASIC) that performs various processes required for controlling the respective portions of the film bonding system 1.

The memory unit includes a semiconductor memory such as a random access memory (RAM), a read only memory (ROM), or a hard disk, a CD-ROM reading device, or a disk type memory medium. The concept of an external storage device, etc. In terms of functionality, the storage unit is provided with a storage writable supply device 2, a bonding device 3, a rotation inverting device 4, a detecting device 7, a second moving device 6, and a storage unit (first storage unit 10, The second storage unit 11), the transport platform 8 and the memory area of the program software for controlling the operation of the roller conveyor 5; and various other memory areas.

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

Figure 7 is a schematic diagram of the action flow of the film bonding system. In Fig. 7, for the sake of convenience, the movement of the roller conveyor 5 (first moving device) is indicated by "first movement", and the movement of the second moving device 6 is indicated by "second movement".

First, the liquid crystal panel P conveyed on the first conveyor 51 is supplied from the supply device 2 to the bonding device 3 (step S1 shown in Fig. 7). The liquid crystal panel P is moved toward the bonding position Q in the -X direction by the first conveyor 51 in the conveying direction of the short side of the display region P4.

The liquid crystal panel P is moved in the conveyance direction along the short side of the display region P4, and the length of the panel conveyance direction (X direction) of the roller conveyor 5 (the first conveyor 51) can be shortened. Thereby, it is easy to achieve the miniaturization of the package.

Further, the liquid crystal panel P can also move in the transport direction of the long side of the display region P4. However, the liquid crystal panel P moves in the transport direction of the short side of the display region P4 from the viewpoint of shortening the length of the panel transport direction (X direction) of the roller conveyor 5 (the first conveyor 51).

Then, the bonding apparatus 3 is attached to the lower surface of the liquid crystal panel P that is introduced to the bonding position Q, and is bonded to the layer (first optical component F11) of the bonding layer sheet F5 cut into a specific size ( Step S2) as shown in Fig. 7. Thereby, the first optical component bonding body PA1 is formed.

Next, the first optical component bonding body PA1 is mounted toward the inspection by the second conveyor 52. Set 7 to move in the -X direction (step S3 shown in Figure 7).

Next, by the detecting device 7, the relative bonding position with respect to the first optical unit F11 of the liquid crystal panel P is detected (step S4 shown in Fig. 7). It is determined that the first optical component bonding body PA1 whose first bonding position of the first optical component F11 in the liquid crystal panel P is correct is moved toward the inverting device 42 in the -X direction by the third conveyor 53.

Then, the first optical component bonding body PA1 having the display surface side of the liquid crystal panel P as the upper side is reversed to the upper side of the backlight side of the liquid crystal panel P by the inverting device 42 (as shown in FIG. 7). Step S5). The first optical component bonding body PA1 whose upper surface is on the display surface side of the liquid crystal panel P is moved toward the rotating device 41 in the +X direction by the fourth conveyor 54 and the third conveyor 53.

Next, the first optical component bonding body PA1 is rotated by 90° in the rotation direction of the vertical axis of the liquid crystal panel P by the rotating device 41 (step S6 shown in FIG. 7). Thereby, the first optical component bonding body PA1 is changed from the position along the transport direction of the short side of the display region P4 to the position along the transport direction of the long side of the display region P4.

Further, it is not limited to the rotation processing of the first optical component bonding body PA1 by the rotating device 41. In the present embodiment, since the second conveyor 52 can also be configured to be rotatable, the rotation processing of the first optical component bonding body PA1 can be performed by the second conveyor 52.

Then, by the second conveyor 52 and the conveyor 61, the first optical component bonding body PA1 moves in the +Y direction toward the transfer carrier 62 along the transport direction (Y direction) of the short side of the display region P4 (for example, the seventh) Step S7) shown in the figure.

Further, it is not limited to the movement processing of the first optical component bonding body PA1 by the second conveyor 52. In the present embodiment, the rotation device 41 may be configured to be movable in the Y direction, and the movement processing of the first optical component bonding body PA1 may be performed by the rotation device 41.

Next, the first optical component bonding body PA1 is accommodated by the transfer machine 62 to the first housing portion 10 or the second housing portion 11 (step S8 shown in Fig. 7). For example, by transfer machine 62 In the storage method, the first optical component bonding body PA1 is first accommodated in the first housing portion 10, and when the first housing portion 10 is full, the first optical component bonding body PA1 is stored in the first embodiment. Second storage unit 11. Further, the present invention is not limited thereto, and a method of mutually accommodating the first optical component bonding body PA1 to the first housing portion 10 and the second housing portion 11 may be employed.

After the first storage unit 10 or the second storage unit 11 accommodates a predetermined number of the first optical unit bonding bodies PA1, the roll unit R1 is switched by the bonding apparatus 3 and the transport stage 8 (as shown in FIG. 7). Step S9). For example, the first reel drum R11 loaded in the laminating device 3 is switched to the second reel drum R12 to load the second reel drum R12 to the laminating device 3.

Next, the first optical component bonding body PA1 is taken out from the first housing portion 10 or the second housing portion 11 by the transfer machine 62 (step S10 shown in Fig. 7). For example, in the method of removing the transfer machine 62, the first optical component bonding body PA1 can be taken out only from the first storage portion 10, and the first storage portion 10 is empty. The second housing portion 11 takes out the first optical component bonding body PA1. The taken-out first optical component pasting body PA1 is moved toward the conveyor 61 by the transfer machine 62.

Next, by the conveyor 61, the first optical component bonding body PA1 moves in the -Y direction toward the second conveyor 52 along the transport direction (Y direction) of the short side of the display region P4 (as shown in FIG. 7) S11).

Further, it is not limited to the movement processing of the first optical component bonding body PA1 by the conveyor 61. In the present embodiment, the rotation device 41 may be configured to be movable in the Y direction, and the movement processing of the first optical component bonding body PA1 may be performed by the rotation device 41.

Next, the first optical component bonding body PA1 moves in the +X direction toward the first conveyor 51 in the transport direction (X direction) of the long side of the display region P4 by the second conveyor 52 (as shown in FIG. 7). Step S12). Then, the first conveyor 51 moves in the transport direction of the long side of the display region P4 toward the bonding position Q in the -X direction, and is supplied to the bonding apparatus 3 by the supply device 2.

Next, the liquid crystal panel P that is introduced to the bonding position Q by the bonding device 3 is relatively On the lower side, the lamination of the ply of the bonding layer F5 of a specific size (the first optical component F12) is performed (step S13 shown in Fig. 7). Thereby, the polarization axes (optical axes) of the pair of polarizing films are arranged to be orthogonal to each other (orthogonal polarizer arrangement) to form the second optical component bonding body PA2.

The second optical component bonding body PA2 is transported to the rotation reversing device 4, and rotated by 90° in the rotation direction of the vertical axis of the liquid crystal panel P by the rotating device 41 (step S14 shown in Fig. 7). Then, the second optical component pasting body PA2 is moved toward the detecting device 7 in the -X direction by the second conveyor 52.

Next, the relative bonding position with respect to the second optical component F12 of the liquid crystal panel P is detected by the detecting device 7 (step S15 shown in Fig. 7).

Next, the third conveyor 53 and the fourth conveyor 54 determine that the relative position of the second optical component F12 in the liquid crystal panel P is the correct second optical component bonding body PA2 along the display area P4. The transport direction of the short side (X direction) moves toward the next direction toward the -X direction (step S16 shown in Fig. 7).

Further, in the present embodiment, the short side of the first optical component bonding body PA1 and the second optical component bonding body PA2 (the short side of the display region) is performed before the detection of the relative bonding position of the detecting device 7 is performed. The transport direction (X direction) is not limited thereto, and may be along the transport direction (X direction) of the longitudinal direction of the first optical component bonding body PA1 and the second optical component bonding body PA2 (the long side of the display region). . Thereby, the number of the cameras 7a provided in the width direction of the liquid crystal panel P orthogonal to the conveyance direction (X direction) can be reduced.

As described above, according to the film bonding system 1 of the present embodiment, the bonding apparatus 3, the rotation reversing device 4, and the detecting device 7 are shared by the first optical component bonding body PA1 and the second optical component bonding body PA2. . Therefore, it is possible to achieve miniaturization and low cost of the device.

Further, in the present embodiment, since the first optical unit F11 and the second optical unit F12 are carried out by one bonding apparatus 3, the roll exchange time of the bonding apparatus 3 is generated, although the production is performed. The first optical component bonding body PA1 which is sequentially formed by the bonding apparatus 3 is temporarily stored in the accommodating portion (the first accommodating portion 10 and the second accommodating portion 11), and the coil is exchanged, and then the accommodating portion is The first optical component bonding body PA1 sequentially taken out by the first housing portion 10 and the second housing portion 11) is subjected to the bonding process of the second optical component F12 by the bonding device 3, thereby suppressing the reduction of the production efficiency to the minimum. .

In the present embodiment, the configuration of the bonding apparatus 3 is exemplified by the structure in which the bonding process of the liquid crystal panel P and the optical module F1X is performed by the nip roller 32, but the invention is not limited thereto. For example, the bonding apparatus 3 may be an optical component that is peeled off from the separation layer sheet, and is attached to a bonding portion such as a bonding head or a bonding cylinder as a temporary transfer body, and then the bonding portion is opposed to the liquid crystal panel. P is calibrated to attach the optical component attached to the bonding portion to the device of the liquid crystal panel.

As described above, the film bonding system 1 (production system of the optical display device) according to the embodiment of the present invention is for producing a liquid crystal panel P (optical display member) and bonded to the surface of the liquid crystal panel P (the A first optical module F11 of one side and a liquid crystal display device (optical display device) of the second optical component F12 attached to the reverse side (second surface) of the liquid crystal panel P.

The film bonding system 1 includes a bonding device 3 that bonds the optical module F1X to the liquid crystal panel P, a rotation inverting device 4, and a liquid crystal panel P that rotates and reverses the roller conveyor 5 (first moving device). The liquid crystal panel P and the control device 9 (control unit) are moved between the closing device 3 and the rotation reversing device 4.

The control device 9 is for controlling the bonding device 3 to bond the first optical component F11 to the surface of the liquid crystal panel to form the first optical component bonding body PA1 (optical component bonding body); (b) controlling the roller conveying The machine 5 moves the first optical component bonding body PA1 from the bonding device 3 to the rotation inverting device 4; (c) controls the rotation inverting device 4, rotates and inverts the first optical component bonding body PA1; (d) controls The roller conveyor 5 moves the first optical component bonding body PA1 rotated and reversed by the rotation reversing device 4 from the rotation reversing device 4 to the bonding device 3; and (e) controls the bonding device 3, The second optical component F12 is attached to the reverse side of the liquid crystal panel P.

The above is a description of the appropriate implementation of the embodiment with reference to the attached drawings. The form is exemplified, but the invention is not limited to the examples. The various shapes or combinations of the constituent elements shown in the above examples are merely examples, and various changes in design requirements and the like are possible without departing from the gist of the invention.

Claims (7)

A production system for an optical display device is a production process of an optical display device formed by bonding a first optical component to a first side of an optical display component and a second optical component to a second side of the optical display component The system includes: a bonding device, the first optical component is attached to the first surface of the optical display component to form an optical component bonding body; and the rotation inverting device rotates and reverses the optical component bonding body; a moving device for moving the optical component bonding body from the bonding device to the rotation inverting device; wherein the optical component bonding body is moved from the bonding device to the first moving device of the rotation inverting device In order to bond the first optical component to the first surface of the optical display component to form a bonding device of the optical component bonding body, the second optical component is attached to the second surface of the optical display component, and The optical component bonding body rotated and reversed by the rotation inverting device is moved from the rotation inverting device to the bonding device. The production system of the optical display device according to claim 1, further comprising: a accommodating portion that accommodates the optical component bonding body; and a second moving device that moves the optical component bonding body from the rotation reversing device to the accommodating portion At the same time, the optical component bonding body is moved from the housing portion to the rotation inverting device. The production system of an optical display device according to claim 1 or 2, wherein the rotation reversing device further comprises: a rotating device that rotates the optical component bonding body; and a reversing device that reverses the optical component bonding body. The production system of an optical display device according to claim 3, wherein the rotation reversing device further comprises a detecting device located between the rotating device and the inverting device, and detecting the optical display The relative bonding position of the first optical component of the component and the relative bonding position of the second optical component of the optical component. The production system of an optical display device according to claim 1 or 2, wherein the optical display member comprises a first side having a first length and a second side having a second length; the bonding device is capable of switching the unwinding pair a first roll of the strip-shaped first optical component layer of the width of the first length and a second roll of the second optical component layer of the second length corresponding to the width of the second length; the bonding device will Aligning the first optical component obtained from the first optical component layer rolled up by the first roll of film to the first side of the optical display component at a length corresponding to the second length, and at the same time The length of the first length should be cut, and the second optical component obtained from the second optical component layer wound by the second roll cylinder is attached to the second side of the optical display member. The production system of an optical display device according to claim 3, wherein the optical display member comprises a first side having a first length and a second side having a second length; the bonding device is switchable to be rolled out corresponding to the first a first roll of the strip-shaped first optical component layer of a length of width and a second roll of roll of the second optical component layer corresponding to the width of the second length; the bonding device will be The first optical component obtained by cutting the first optical component layer rolled up from the first roll cylinder should be attached to the first side of the optical display component at the second length, and correspondingly The length of one length is cut, and the second optical component obtained from the second optical component layer wound by the second roll cylinder is attached to the second side of the optical display component. The production system of an optical display device according to claim 4, wherein the optical display member comprises a first side having a first length and a second side having a second length; The bonding device is capable of switching a first reel roller that unwinds a strip-shaped first optical component layer corresponding to a width of a first length and a second optical component layer that is wound out to a width corresponding to a second length a two-roller roll; the bonding device attaches the first optical component obtained by cutting the first optical component layer rolled up from the first roll to the optical display in a length corresponding to the second length The first side of the component is simultaneously cut to a length corresponding to the first length, and the second optical component obtained from the second optical component layer rolled up by the second roll is attached to the optical display component The second side.