TWI596388B - Method for producing an optical member affixed body - Google Patents

Description

Method for manufacturing optical component bonding body

The present invention relates to a method of producing an optical member bonded body.

The present application claims priority based on Japanese Patent Application No. 2013-002831, filed on Jan. 10, 2013, the disclosure of which is incorporated herein.

Conventionally, in a production system of an optical display element such as a liquid crystal display, an optical member such as a polarizing plate bonded to a liquid crystal panel (optical display component) is a sheet which is cut into a size of a display region of a liquid crystal panel by an elongated film. After the sheet is bonded to the liquid crystal panel (see, for example, Patent Document 1).

[Previous Technical Literature] [Patent Literature]

[Patent Document 1] Japanese Patent Laid-Open Publication No. 2003-255132

In the conventional configuration, even if the outer shape of the optical member is matched with the outer shape of the liquid crystal panel, if it is heated by a subsequent touch panel mounting process or heat resistance test or the like, There is a case where the size of the optical member contracts to become smaller than the display area. In order to suppress the dimensional shrinkage, it is also considered that the adhesive between the liquid crystal panel and the optical member is formed to be a strong anchor. However, at this time, warpage occurs in the liquid crystal panel due to stress accompanying heat shrinkage. Therefore, in the conventional configuration, the outer frame region around the display region cannot be reduced, and the miniaturization of the organic device is hindered.

The present invention has been made in view of the above-described circumstances, and an object of the present invention is to provide an optical member bonding body manufacturing method and an optical member bonding body which can reduce the outer frame region and achieve an enlargement of the display region and downsizing of the device.

In order to achieve the above object, the method for producing an optical member bonding body and the optical member bonding system according to the aspect of the invention employ the following means.

(1) A method of manufacturing an optical member bonding body according to an aspect of the present invention is a method of manufacturing an optical display component bonding optical component, comprising: a first step, which is larger than a shape of the optical display component The first optical member sheet is bonded to the optical display member to form a first bonded body, and the second step is to heat the first bonded member to shrink the first optical member sheet. The outer shape of the first optical member sheet substantially matches the outer shape of the optical display component, and the first bonding body is formed to include the optical component and the optical component overlapping the optical display component. Optical component bonding body.

(2) In the aspect of the above (1), the optical display component and the first optical device may be bonded together using an adhesive having a storage modulus of 0.56 MPa or less at a temperature of 80 ° C in the first step. Parts sheet.

(3) In the aspect of the above (1) or (2), in the first step, The second optical member sheet having a larger outer shape than the first optical member sheet is bonded to the optical display member to form a second bonded body, and the second optical member sheet is formed along the outer shape of the optical display member. And the laser is cut to be larger than the outer shape of the optical display component, whereby the second bonding body is formed as the first sticker including the optical display component and the first optical component sheet overlapping the optical display component. Fit.

(4) The optical component bonding system according to another aspect of the present invention, wherein the optical component is bonded to the optical component, and the optical component is attached by any one of the aspects (1) to (3) above. Manufactured by the manufacturing method of the combination.

According to the aspect of the invention, it is possible to provide a method of manufacturing an optical member bonding body and an optical member bonding body which can reduce the outer frame region and achieve enlargement of the display region and miniaturization of the device.

1‧‧‧Film bonding system

5‧‧‧Roller conveyor

6‧‧‧Upstream conveyor

7‧‧‧ downstream conveyor

11‧‧‧1st adsorption device

11a‧‧‧ Panel Holder

11b‧‧‧Aligning camera

12‧‧‧1st dust collecting device

13‧‧‧1st bonding device

15‧‧‧Reversal device

15c‧‧ Aligned camera

16‧‧‧2nd dust collecting device

17‧‧‧2nd bonding device

20‧‧‧2nd adsorption device

22‧‧‧Transporting device

22a‧‧‧Reel Holder

22b‧‧‧ Guide roller

22c‧‧‧cutting device

22d‧‧‧blade

22e‧‧‧Winding Department

23‧‧‧ pinch roller

23a‧‧‧Fitting rollers

24‧‧‧Free Roller Conveyor

26‧‧‧Adsorption pad

31‧‧‧1st cutting device

32‧‧‧2nd cutting device

40‧‧‧Control Department

50‧‧‧ heating device

CL, EL‧‧‧ edge line

CP‧‧‧ checkpoint

F1‧‧‧1st optical sheet

F1a‧‧‧Optical component body

F1m‧‧‧1st sheet

F1w‧‧‧1st intermediate sheet

F1X‧‧‧Optical parts

F2‧‧‧2nd optical sheet

F2a‧‧‧Adhesive layer (adhesive)

F2m‧‧‧2nd sheet

F2w‧‧‧2nd intermediate sheet

F3a‧‧‧Isolated parts

F4a‧‧‧Surface protection film

F5‧‧‧Fitting sheet

F6‧‧‧ polarizer

F7‧‧‧1st film

F8‧‧‧2nd film

F11‧‧‧1st optical component

F12‧‧‧2nd optical component

FX‧‧‧ optical sheet

FXm‧‧‧Sheet Sheet (1st Optical Parts Sheet)

FXw‧‧‧Intermediate sheet (2nd optical part sheet)

G‧‧‧Outer frame

L1, L2‧‧‧ incision line

P‧‧‧LCD panel (optical display parts)

P1‧‧‧1st substrate

P2‧‧‧2nd substrate

P3‧‧‧ liquid crystal layer

P4‧‧‧ display area

PA1‧‧‧1st optical component bonding body (2nd bonding body)

PA2‧‧‧2nd optical component bonding body (1st bonding body)

PA3‧‧‧3rd optical component bonding body (2nd bonding body)

PA4‧‧‧4th optical component bonding body (1st bonding body)

PA5‧‧‧Fifth optical component bonding body (optical component bonding body)

R‧‧‧ rails

R1‧‧‧ raw material rolls

R2‧‧‧Isolation Roll

S‧‧‧stops

WCL‧‧‧ cutting line

The first drawing shows a schematic view of an apparatus for manufacturing an optical component bonding body according to an embodiment of the present invention.

The second figure is a top view of the liquid crystal panel.

The third figure is a cross-sectional view of the A-A of the second figure.

The fourth figure is a cross-sectional view of the optical sheet.

The fifth figure shows the operation of the cutting device.

The sixth drawing shows a plan view of the outer shape of the sheet piece with respect to the outer shape of the liquid crystal panel.

Fig. 7A is a view showing an example of a method of determining the position at which the sheet piece is bonded to the liquid crystal panel.

Fig. 7B is a view showing an example of a method of determining the position at which the sheet piece is attached to the liquid crystal panel. Figure.

The eighth drawing is a flow chart of a method of manufacturing an optical member bonding body.

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

In all of the following drawings, the dimensions, ratios, and the like of the respective constituent elements are appropriately changed in order to facilitate the viewing of the drawings. In the following description and the drawings, the same or corresponding elements are designated by the same reference numerals, and the repeated description is omitted.

In the following description, the XYZ orthogonal coordinate system is set as needed, and the positional relationship of each member will be described with reference to the XYZ orthogonal coordinate system. In the present embodiment, the transport direction of the liquid crystal panel as the optical display component is set to the X direction, and the direction orthogonal to the X direction in the plane of the liquid crystal panel (the width direction of the liquid crystal panel) is set to the Y direction. The direction orthogonal to the X direction and the Y direction is set to the Z direction.

Hereinafter, a film bonding system 1 which is an apparatus for manufacturing an optical member bonding body according to an embodiment of the present invention will be described with reference to the drawings.

The first drawing shows a schematic configuration of the film bonding system 1 of the present embodiment.

In the film bonding system 1 , for example, a film-shaped optical member such as a liquid crystal panel or an organic EL panel is bonded to a film-shaped optical member such as a polarizing film, an anti-reflection film, or a light-diffusing film.

As shown in the first figure, the film bonding system 1 of the present embodiment is formed as one of the steps of the manufacturing line of the liquid crystal panel P. Each part of the film bonding system 1 is collectively controlled by a control unit 40 as an electronic control unit.

The second drawing is a plan view of the liquid crystal panel P viewed from the thickness direction of the liquid crystal layer P3 of the liquid crystal panel P. The liquid crystal panel P includes a first substrate P1 having a rectangular shape in plan view, a second substrate P2 having a rectangular shape that is disposed to face the first substrate P1 and having a smaller shape than the first substrate P1, and a second substrate P2 having a smaller shape than the first substrate P1. The liquid crystal layer P3 between the first substrate P1 and the second substrate P2 is sealed. The liquid crystal panel P has a rectangular shape having an outer shape along the first substrate P1 in plan view. The area of the liquid crystal panel P that is accommodated inside the outer periphery of the liquid crystal layer P3 in plan view is set in the display area P4.

The third figure is a cross-sectional view of the A-A of the second figure. In the front and back surfaces of the liquid crystal panel P, the first optical sheet F1 and the second optical sheet F2 (see the first figure, hereinafter collectively referred to as the optical sheet FX) are attached to each other. 1 optical member F11 and second optical member F12 (hereinafter collectively referred to as optical member F1X). In the present embodiment, the polarizing film is bonded to each of the backlight side and the display surface side of the liquid crystal panel P. The first optical member F11 is bonded to the surface on the backlight side of the liquid crystal panel P as a polarizing film. The second optical member F12 is bonded to the surface on the display surface side of the liquid crystal panel P as a polarizing film.

The first optical member F11 is formed by heating and contracting the first sheet piece F1m cut by the first intermediate sheet piece F1w, which will be described later. The second optical member F12 is formed by heating and contracting the second sheet piece F2m cut by the second intermediate sheet piece F2w, which will be described later.

Hereinafter, the first intermediate sheet F1w and the second intermediate sheet F2w may be collectively referred to as an intermediate sheet FXw. The first sheet piece F1m and the second sheet piece F2m are sometimes collectively referred to as a sheet piece FXm. The intermediate sheet piece FXw corresponds to the second optical member sheet. The sheet piece FXm corresponds to the first optical member sheet.

The fourth drawing is a partial cross-sectional view of the optical sheet FX attached to the liquid crystal panel P. The optical sheet FX has a film-shaped optical member body F1a and is provided on the optical member body F1a. An adhesive layer F2a on one side (the upper side in the fourth figure), a separator F3a detachably laminated on one side of the optical member body F1a through the adhesive layer F2a, and a laminated layer on the optical member The other surface of the body F1a (the lower side in the fourth figure) is a surface protective film F4a. The optical member main body F1a functions as a polarizing plate, and is bonded to the entire area of the display region P4 of the liquid crystal panel P and its peripheral region. Here, for the sake of convenience of illustration, the hatching of each layer of the fourth figure is omitted.

The optical member main body F1a is bonded to the liquid crystal panel P through the adhesive layer F2a while the spacer F3a is separated while the adhesive layer F2a remains on one side. Hereinafter, a portion after the spacer F3a is removed from the optical sheet FX is referred to as a bonded sheet F5. The adhesive layer F2a is equivalent to an adhesive.

The spacer F3a protects the adhesive layer F2a and the optical member main body F1a while being separated by the adhesive layer F2a. The surface protective film F4a is bonded to the liquid crystal panel P together with the optical member body F1a. The surface protection film F4a is disposed on the opposite side of the liquid crystal panel P with respect to the optical member body F1a to protect the optical member body F1a. The surface protective film F4a is separated by the optical member body F1a at a predetermined timing. Further, the optical sheet FX may not have the surface protective film F4a. The surface protective film F4a may not be separated from the optical member body F1a.

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

In addition, the optical component body F1a may also be a single layer structure formed by one optical layer. Made. The optical member body F1a may have a laminated structure in which a plurality of optical layers are laminated to each other. The optical layer may be a retardation film or a brightness enhancement film in addition to the polarizer F6. At least one of the first film F7 and the second film F8 may be subjected to a surface treatment including an outermost hard coating treatment for protecting liquid crystal display elements or an anti-glare treatment to obtain an effect of preventing glare. The optical member main 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 separator F3a may be bonded to one surface of the optical member main body F1a through the adhesive layer F2a.

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

As shown in the first figure, the film bonding system 1 of the present embodiment includes a downstream side (+X direction side) of the liquid crystal panel P on the right side in the drawing direction, and a downstream direction of the liquid crystal panel P on the left side in the drawing. On the side (-X direction side), the drive type roller conveyor 5 that conveys the liquid crystal panel P in a horizontal state.

The roller conveyor 5 is divided into an upstream conveyor 6 and a downstream conveyor 7 by a reversing device 15 to be described later. In the upstream conveyor 6, the liquid crystal panel P conveys the short side of the display region P4 along the conveyance direction. On the other hand, in the downstream conveyor 7, the liquid crystal panel P conveys the long side of the display area P4 along the conveyance direction. An intermediate sheet piece FXw (corresponding to the optical member F1X) which is a sheet piece of the bonded sheet F5 cut out to a predetermined length by the strip-shaped optical sheet FX is bonded to the front and back surfaces of the liquid crystal panel P.

The upstream conveyor 6 is provided with a free roller conveyor 24 that is independent on the downstream side in the first adsorption device 11 to be described later. On the other hand, the downstream conveyor 7 is provided with a free roller conveyor 24 which is independent on the downstream side in the second adsorption device 20 which will be described later.

The film bonding system 1 of the present embodiment includes the first adsorption device 11, the first dust collecting device 12, the first bonding device 13, the first cutting device 31, the reversing device 15, and the second dust collecting device. 16. The second bonding device 17, the second cutting device 32, the heating device 50, and the control unit 40.

The first adsorption device 11 adsorbs the liquid crystal panel P and transports it to the upstream conveyor 6 to perform alignment (positioning) of the liquid crystal panel P. The first adsorption device 11 has a panel holding portion 11a, an alignment camera 11b, and a rail R.

The panel holding portion 11a is held by the upstream conveyor 6 so as to be movable in the vertical direction and the horizontal direction while holding the liquid crystal panel P of the stopper S on the downstream side, and to align the liquid crystal panel P. The panel holding portion 11a sucks and holds the upper surface of the liquid crystal panel P that abuts against the stopper S by vacuum suction. The panel holding portion 11a moves on the rail R while sucking and holding the liquid crystal panel P to transport the liquid crystal panel P. When the panel holding portion 11a ends the conveyance, that is, the suction holding is released, and the liquid crystal panel P is transferred to the free roller conveyor 24.

The alignment camera 11b is held by the panel holding portion 11a in contact with the liquid crystal panel P of the stopper S, and the alignment mark or the front end shape of the liquid crystal panel P is imaged in an ascending state. The image data obtained by the alignment camera 11b is transmitted to the control unit 40, and based on the image data, the panel holding unit 11a operates to perform the pair of the liquid crystal panel P with respect to the free roller conveyor 24 at the destination end. quasi. In other words, the liquid crystal panel P is biased in a direction in which the free roller conveyor 24 is conveyed, a direction orthogonal to the conveyance direction, and a direction of rotation around the vertical axis of the liquid crystal panel P. In the state, it is conveyed to the free roller conveyor 24.

The liquid crystal panel P conveyed on the rail R by the panel holding portion 11a is held by the nip roller 23 together with the intermediate sheet FXw in a state of being adsorbed on the adsorption pad 26.

The first dust collecting device 12 is provided on the upstream side of the liquid crystal panel P of the pinch roller 23 at the bonding position of the first bonding device 13 . The first dust collecting device 12 is introduced to remove The dust around the liquid crystal panel P before the bonding position, in particular, the dust on the lower side, removes static electricity and collects dust.

The first bonding apparatus 13 is provided on the downstream side of the panel transporting than the first adsorption apparatus 11. The first bonding apparatus 13 is bonded to the lower surface of the liquid crystal panel P that has been introduced to the bonding position, and is bonded to the bonding sheet F5 (corresponding to the first intermediate sheet F1w) of a predetermined size.

The first bonding apparatus 13 includes a conveying device 22 and a pinch roller 23 .

The transport device 22 transports the optical sheet FX along the longitudinal direction of the optical sheet FX while the optical sheet FX is taken up by the material roll R1 around which the optical sheet FX is wound. The conveying device 22 conveys the bonding sheet F5 using the separator F3a as a carrier. The conveying device 22 has a roll holding portion 22a, a plurality of guide rollers 22b, a cutting device 22c, a knife edge 22d, and a winding portion 22e.

The roll holding portion 22a holds the material roll R1 around which the strip-shaped optical sheet FX is wound, and feeds the optical sheet FX along the longitudinal direction of the optical sheet FX.

The plurality of guide rollers 22b wind the optical sheet FX so as to guide the optical sheet FX wound by the material roll R1 along a predetermined conveyance path.

The cutting device 22c performs half cutting on the optical sheet FX on the transport path.

In the blade 22d, the half-cut optical sheet FX is wound at an acute angle, and the bonded sheet F5 is separated by the separator F3a, and the bonded sheet F5 is supplied to the bonding position.

The winding portion 22e holds the spacer roll R2 which is formed as a separate spacer F3a via the blade 22d.

The winding holding portion 22a located at the starting point of the conveying device 22 and the winding portion 22e located at the end point of the conveying device 22 are driven in synchronization with each other, for example. Thereby, the roll holding portion 22a will be on one side The optical sheet FX is fed in the conveyance direction of the optical sheet FX, and the separator F3a passing through the blade 22d is wound by the winding portion 22e. Hereinafter, the upstream side in the conveyance direction of the optical sheet FX (the separator F3a) in the conveyance device 22 is referred to as the sheet conveyance upstream side, and the downstream side in the conveyance direction is referred to as the sheet conveyance downstream side.

Each of the guide rollers 22b changes the progress direction of the optical sheet FX during transport along the transport path, and at least a part of the plurality of guide rollers 22b is movable to adjust the tension of the optical sheet FX during transport. .

Further, a dancer roller (not shown) may be disposed between the coil holding portion 22a and the cutting device 22c. The tension roller absorbs the amount of the optical sheet FX conveyed by the roll holding portion 22a while the optical sheet FX is cut by the cutting device 22c.

Fig. 5 is a view showing the operation of the cutting device 22c of the present embodiment.

As shown in FIG. 5, when the optical sheet FX is sent out by a predetermined length, the cutting device 22c performs the optical sheet over the full width in the width direction orthogonal to the longitudinal direction of the optical sheet FX. A half cut of a part of the thickness direction of the FX is cut. The cutting device 22c of the present embodiment is provided so as to be movable forward and backward with respect to the optical sheet FX from the opposite side of the spacer F3a with respect to the optical sheet FX.

The cutting device 22c adjusts the optical sheet FX (the separator F3a) so as not to be broken by the tension applied to the optical sheet FX (to a predetermined thickness remaining in the spacer F3a). The advancing and retracting position of the broken blade is half-cut until the vicinity of the interface between the adhesive layer F2a and the spacer F3a. In addition, a laser device can be used instead of the cutting edge.

The optical sheet FX after the half-cut is formed by cutting the optical member main body F1a and the surface protective film F4a in the thickness direction of the optical sheet FX to form a wide width over the optical sheet FX. Full width slit lines L1, L2 of the direction. The slit lines L1 and L2 are formed so as to be arranged in a plurality in the longitudinal direction of the strip-shaped optical sheet FX. For example, in order to carry out the bonding process of the liquid crystal panel P of the same size, the plurality of slit lines L1 and L2 are formed at equal intervals in the longitudinal direction of the optical sheet FX. The optical sheet FX is divided into a plurality of divisions in the longitudinal direction by the plurality of slit lines L1 and L2. The division between the pair of slit lines L1 and L2 adjacent to each other in the longitudinal direction of the optical sheet FX corresponds to one of the intermediate sheets FXw of the bonded sheet F5.

The sixth drawing shows a plan view of the outer shape of the intermediate sheet piece FXw and the outer shape of the sheet piece FXm with respect to the outer shape of the liquid crystal panel P.

As shown in FIG. 6, the intermediate sheet piece FXw is a sheet piece of the optical sheet FX which is larger than the outer shape of the liquid crystal panel P (specifically, the size larger than the outer shape of the sheet piece FXm).

Returning to the first figure, the blade 22d is disposed below the upstream conveyor 6, and extends over at least the full width of the optical sheet FX in the wide direction of the optical sheet FX. The blade 22d winds the optical sheet FX in a sliding contact manner on the side of the spacer F3a of the optical sheet FX after half-cutting.

The blade 22d has a first surface that is disposed obliquely downward in the wide direction of the optical sheet FX (the width direction of the upstream conveyor 6), and the first surface is viewed from the wide direction of the optical sheet FX. The second surface forms an acute angle, and is disposed on the second surface above the first surface; and the front end portion where the first surface and the second surface intersect.

In the first bonding apparatus 13, the blade 22d winds the first optical sheet F1 around the tip end portion of the blade 22d so that the first optical sheet F1 is folded at an acute angle. When the first optical sheet F1 is folded at an acute angle at the front end portion of the blade 22d, the sheet piece (the first intermediate sheet piece F1w) of the bonded sheet F5 is separated by the spacer F3a. The front end portion of the blade 22d is conveyed to the panel of the pinch roller 23 The upstream side is close to the configuration. The first intermediate sheet piece F1w separated by the spacer F3a by the blade 22d is superimposed on the lower surface of the liquid crystal panel P that is adsorbed on the first adsorption device 11, and is introduced into the pair of the nip rollers 23. Fit between the rollers 23a. The first intermediate sheet F1w is a sheet of the first optical sheet F1 that is larger than the outer shape of the liquid crystal panel P (specifically, the size larger than the outer shape of the first sheet F1m).

On the other hand, the spacer F3a separated from the bonding sheet F5 is directed toward the winding portion 22e by the blade 22d. The winding portion 22e winds and collects the separator F3a separated by the bonded sheet F5.

The nip roller 23 is attached to the lower surface of the liquid crystal panel P conveyed by the upstream conveyor 6 by the first intermediate sheet piece F1w which the conveyance apparatus 22 isolate|separated from the 1st optical sheet F1.

The nip roller 23 has a pair of bonding rollers 23a and 23a which are arranged in parallel with each other in the axial direction (the upper bonding roller 23a is movable in the vertical direction). A predetermined gap is formed between the pair of bonding rollers 23a and 23a, and the gap is the bonding position of the first bonding apparatus 13.

The liquid crystal panel P and the first intermediate sheet piece F1w are stacked and introduced into the gap. The liquid crystal panel P and the first intermediate sheet piece F1w are fed to the pair of bonding rollers 23a while being fed to the downstream side of the panel conveyance of the upstream conveyor 6. In the present embodiment, the first intermediate sheet F1w is bonded to the surface of the liquid crystal panel P on the backlight side by the nip roller 23, whereby the first optical member bonding body PA1 is formed. The first optical member bonding body PA1 corresponds to the second bonding body.

The first cutting device 31 is provided on the downstream side of the panel conveyance than the first bonding device 13 . In the first cutting device 31, the first intermediate sheet F1w bonded to the liquid crystal panel P is laser-cut along the outer shape of the liquid crystal panel P to be larger than the outer shape of the liquid crystal panel P. Thereby, the first optical component is attached The bonded body PA1 is formed as a second optical member bonding body PA2 including a liquid crystal panel P and a first sheet piece F1m that overlaps the liquid crystal panel P (see FIG. 6). The second optical member bonding body PA2 corresponds to the first bonding body.

By the first cutting device 31, the remaining portion of the first intermediate sheet F1w is cut away from the first optical member bonding body PA1, whereby the first sheet member is bonded to the surface on the backlight side of the liquid crystal panel P. The second optical member bonding body PA2 composed of F1m. The remaining portion cut away from the first intermediate sheet piece F1w is peeled off from the liquid crystal panel P by a peeling device (not shown) and recovered.

In the reversing device 15, the second optical member bonding body PA2 on which the display surface side of the liquid crystal panel P is formed is reversed, and the backlight side of the liquid crystal panel P is formed on the upper surface, and the liquid crystal panel P is opposed to the first. 2 Alignment of the bonding device 17.

The inverting device 15 has the same alignment function as the panel holding portion 11a of the first adsorption device 11. The inverting device 15 is provided with the same alignment camera 15c as the alignment camera 11b of the first adsorption device 11.

The inverting device 15 performs positioning of the second optical member bonding body PA2 with respect to the second bonding device 17 in the width direction of the component based on the inspection data stored in the optical axis direction of the control unit 40 and the imaging data of the alignment camera 15c. And positioning in the direction of rotation. After the positioning, the second optical member bonding body PA2 is introduced to the bonding position of the second bonding apparatus 17 .

Since the second adsorption device 20 has the same configuration as that of the first adsorption device 11, the same portions will be denoted by the same reference numerals. The second adsorption device 20 adsorbs the second optical member bonding body PA2 and transports it to the downstream conveyor 7 and performs alignment (positioning) of the second optical member bonding body PA2. The second adsorption device 20 has a panel holding portion 11a, an alignment camera 11b, and a rail R.

The panel holding portion 11a holds the second optical member bonding body PA2 that is in contact with the downstream stopper S by the downstream conveyor 7 so as to be movable in the vertical direction and the horizontal direction, and performs the second optical member. Alignment of the conforming body PA2. The panel holding portion 11a is suction-held by the upper surface of the second optical member bonding body PA2 that abuts against the stopper S by vacuum suction. The panel holding portion 11a moves on the rail R while the second optical member bonding body PA2 is being sucked and held, and conveys the second optical member bonding body PA2. When the conveyance is completed, the panel holding portion 11a releases the adsorption holding, and the second optical member bonding body PA2 is transferred to the free roller conveyor 24.

In the alignment camera 11b, the panel holding portion 11a holds the second optical member bonding body PA2 that is in contact with the stopper S, and images the alignment mark or the tip end shape of the second optical member bonding body PA2 in an ascending state. The image data obtained by the alignment camera 11b is transmitted to the control unit 40, and the panel holding unit 11a is actuated to perform the free roller conveyor of the second optical member bonding body PA2 with respect to the transport destination end based on the image data. 24 alignment. In other words, the second optical member bonding body PA2 is added in a direction orthogonal to the conveying direction of the free roller conveyor 24, in a direction orthogonal to the conveying direction, and around a vertical axis around the second optical member bonding body PA2. It is conveyed to the free roller conveyor 24 in the state of the offset part of a turning direction.

The second dust collecting device 16 is disposed on the upstream side in the transport direction of the liquid crystal panel P of the pinch roller 23 at the bonding position of the second bonding device 17 . The second dust collecting device 16 removes dust and dust on the lower side of the second optical member bonding body PA2 before being introduced to the bonding position, and particularly removes dust and collects dust.

The second bonding apparatus 17 is provided on the downstream side of the panel transporting of the second dust collecting device 16 . The second bonding apparatus 17 is attached to the lower surface of the second optical member bonding body PA2 that is introduced to the bonding position, and is bonded to the bonding sheet F5 (corresponding to the second intermediate sheet F2w) of a predetermined size. Hehe.

The second bonding apparatus 17 includes the same conveying device 22 and the pinch roller 23 as the first bonding device 13 .

The second optical member bonding body PA2 and the second intermediate sheet F2w are stacked and introduced into the gap between the pair of bonding rollers 23a of the nip roller 23 (the bonding position of the second bonding device 17). The second intermediate sheet F2w is a sheet of the second optical sheet F2 that is larger than the outer shape of the liquid crystal panel P (specifically, the size larger than the outer shape of the second sheet F2m).

The second optical member bonded body PA2 and the second intermediate sheet piece F2w are fed to the pair of bonding rollers 23a, and are sent to the downstream side of the panel conveyance of the downstream conveyor 7. In the present embodiment, the second intermediate sheet F2w is bonded to the surface on the display surface side of the liquid crystal panel P by the nip roller 23 (the first sheet is bonded to the second optical member bonding body PA2). The surface of the sheet F1m is the surface on the opposite side, whereby the third optical member bonding body PA3 is formed. The third optical member bonding body PA3 corresponds to the second bonding body.

The second cutting device 32 is provided on the downstream side of the panel conveyance than the second bonding device 17 . The second cutting device 32 is formed by bonding the second intermediate sheet piece F2w of the liquid crystal panel P to the outer shape of the liquid crystal panel P so as to be larger than the outer shape of the liquid crystal panel P. By this, the third optical member bonding body PA3 is formed of the liquid crystal panel P and the fourth optical member bonding body PA4 of the first sheet piece F1m and the second sheet piece F2m that overlap the liquid crystal panel P (see the Six maps). The fourth optical member bonding body PA4 corresponds to the first bonding body.

By the second cutting device 32, the remaining portion of the second intermediate sheet F2w is cut away from the third optical member bonding body PA3, and the second sheet is bonded to the surface on the display surface side of the liquid crystal panel P. The sheet F2m is formed by bonding the first sheet piece F1m to the surface on the backlight side of the liquid crystal panel P. The fourth optical member bonding body PA4. The remaining portion cut away from the second intermediate sheet piece F2w is peeled off and collected by the liquid crystal panel P by a peeling device (not shown).

The first cutting device 31 and the second cutting device 32 are, for example, CO ₂ laser cutters. In the first cutting device 31 and the second cutting device 32, the intermediate sheet piece FXw bonded to the liquid crystal panel P is cut along the outer shape of the liquid crystal panel P in an endless shape to be larger than the outer shape of the liquid crystal panel P (specifically It is larger than the shape of the sheet piece FXm).

The heating device 50 is provided on the downstream side of the panel conveyance of the second cutting device 32. In the heating device 50, the fourth optical member bonding body PA4 is heated, and each of the first sheet F1m and the second sheet F2m is contracted, and the outer shape of the first sheet F1m and the outer shape of the second sheet F2m are obtained. The shape of the liquid crystal panel P substantially coincides with each other.

Here, "substantially coincident" means a range in which the outer shape of the first sheet piece F1m, the outer shape of the second sheet piece F2m, and the outer shape of the liquid crystal panel P do not cause a large positional shift. Inside, make each shape slightly different. For example, when the outer shape of the first sheet piece F1m, the outer shape of the second sheet piece F2m, and the outer shape of the liquid crystal panel P are rectangular, the length V1 of one side of the first sheet piece F1m and the length Vp of one side of the liquid crystal panel P are When the ratio V2 / Vp is 0.999 / 1 or more and 1.001 / 1 or less, the ratio V2 / Vp of the length V2 of the side of the second sheet piece F2m and the length Vp of the liquid crystal panel P is 0.999 / 1 or more. In the range of 1.001/1 or less, the length of each side can be said to be substantially the same. In the range as described above, the outer shape of the first sheet piece F1m, the outer shape of the second sheet piece F2m, and the positional deviation between the outer shape of the liquid crystal panel P can be sufficiently suppressed.

Usually, the polarizing plate shrinks by 0.1% to 0.8% depending on the environment. Assuming that the adhesive that bonds the liquid crystal panel and the polarizing plate is formed to be strong without shrinking the polarizing plate, the liquid crystal panel warps with shrinkage of the polarizing plate. Therefore, in the present embodiment, the softness described later is used. A soft adhesive is applied to the liquid crystal panel and the polarizing plate to be processed in consideration of a large size of the shrinkage portion of the polarizing plate.

Further, the shrinkage system is generated in the entire polarizing plate. When the polarizing plate is smaller than the outer shape of the liquid crystal panel due to shrinkage, the trace of the use of the soft adhesive can be investigated by confirming the adhesive remaining on the end of the liquid crystal panel after the polarizing plate shrinks.

Thereby, the fourth optical member bonding body PA4 is formed to include the liquid crystal panel P and the fifth optical member bonding body PA5 that overlaps the first optical member F11 and the second optical member F12. The fifth optical member bonding body PA5 corresponds to an optical member bonding body.

Each of the first sheet piece F1m and the second sheet piece F2m is contracted by the heating device 50, whereby the second optical member F12 is bonded to the surface on the display surface side of the liquid crystal panel P, and the liquid crystal panel P is bonded to the liquid crystal panel P. The fifth optical member bonding body PA5 constituted by the first optical member F11 is bonded to the surface on the backlight side.

A bonding inspection device (not shown) is provided on the downstream side of the panel transport unit from the heating device 50.

In the bonding inspection device, the workpiece (liquid crystal panel P) to which the film has been bonded is inspected by an inspection device (not shown) (whether the position of the optical member F1X is appropriate (whether the positional deviation is within the tolerance range) Wait for the check). The workpiece that is determined to be not suitable for the position of the optical member F1X with respect to the liquid crystal panel P is discharged to the outside of the system by a discharge means (not shown).

Further, in the present embodiment, the control unit 40 as an electronic control unit that collectively controls the respective units of the film bonding system 1 includes a computer system. The computer system includes an arithmetic processing unit such as a CPU, and a memory unit such as a memory or a hard disk.

The control unit 40 of the present embodiment includes an executable device and an external device of the computer system. Set the interface for communication. An input device to which an input signal can be input may be connected to the control unit 40. The 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 unit 40 may include a display device such as a liquid crystal display that indicates the operation state of each unit of the film bonding system 1. The control unit 40 can also be connected to the display device.

An operating system (OS) for controlling the computer system is attached to the memory unit of the control unit 40. In the memory unit of the control unit 40, a program for controlling the respective portions of the film bonding system 1 by the arithmetic processing unit to perform the process of accurately transporting the optical sheet F to each unit of the film bonding system 1 is performed. Various information including a program recorded in the storage unit can be read by the arithmetic processing unit of the control unit 40. The control unit 40 may include a logic circuit such as an ASIC (Application Specific Integrated Circuit) that performs various processes required for control of each unit of the film bonding system 1.

The memory unit includes a semiconductor memory such as a RAM (Random Access Memory) or a ROM (Read Only Memory), and a hard disk, a CD-ROM reading device, a disk type memory medium, and the like. External memory device, etc. The memory unit is functionally set to describe the first adsorption device 11, the first dust collecting device 12, the first bonding device 13, the first cutting device 31, the inverting device 15, and the second adsorption device 20 in memory. The memory unit of the program software of the control sequence of the second dust collecting device 16, the second bonding device 17, the second cutting device 32, and the heating device 50, and various other memory regions.

Hereinafter, an example of a method of determining the bonding position (relative bonding position) of the intermediate sheet piece FXw with respect to the liquid crystal panel P will be described with reference to FIGS. 7A and 7B.

First, as shown in FIG. 7A, a plural number is set in the width direction of the optical sheet FX The inspection point CP detects the direction of the optical axis of the optical sheet FX at each inspection point CP. The timing of detecting the optical axis may be during the production of the material roll R1, or may be performed while the optical sheet FX is taken up by the material roll R1 and half-cut is performed. The optical axis direction data of the optical sheet FX is associated with the position of the optical sheet FX (the position of the optical sheet FX in the longitudinal direction and the position in the wide direction) and is stored in a memory device (not shown).

The control unit 40 acquires the optical axis data (inspection data of the in-plane distribution of the optical axis) of each inspection point CP by the memory device, and detects the optical sheet FX of the portion where the sheet piece FXm is cut out (by the slit line CL) The direction of the average optical axis of the zone being zoned.

For example, as shown in FIG. 7B, the angle (offset angle) of the direction of the optical axis with the edge line EL of the optical sheet FX is detected for each check point CP, and the largest angle among the offset angles (maximum offset) When the angle of shift is set to θ max and the minimum angle (minimum offset angle) is θ min , the average value of the maximum offset angle θ max and the minimum offset angle θ min is detected θ mid (=(θ max + θ Min)/2) as the average offset angle. Next, the direction in which the average offset angle θ mid is formed with respect to the edge line EL of the optical sheet FX is detected as the direction of the average optical axis of the optical sheet FX. Further, the offset angle is calculated, for example, with respect to the edge line EL of the optical sheet FX, with the direction around the left circumference being positive and the direction around the right circumference being negative.

Next, the intermediate sheet piece FXw is determined so that the long side or the short side of the display region P4 of the liquid crystal panel P forms a desired angle with the direction of the average optical axis of the optical sheet FX detected by the above method. The bonding position (relative bonding position) with respect to the liquid crystal panel P. For example, when the direction of the optical axis of the optical member F1X is set to a direction of 90° with respect to the long side or the short side of the display area P4 according to the design specifications, the direction of the average optical axis of the optical sheet FX is relative to the display. The long side or the short side of the area P4 forms a 90° manner, and the intermediate sheet piece FXw is attached. Fitted on the LCD panel P.

In the cutting devices 31 and 32, the outer peripheral edge of the outer shape of the liquid crystal panel P is detected by a detecting means such as a camera, and the intermediate sheet piece FXw bonded to the liquid crystal panel P is cut off in an endless manner along the outer shape of the liquid crystal panel P. It is larger than the outer shape of the liquid crystal panel P. The outer shape of the liquid crystal panel P is detected by imaging the outermost edge of the liquid crystal panel P or the alignment mark provided on the liquid crystal panel P. A predetermined wide outer frame portion G (see FIG. 3) provided with a sealant for joining the first substrate P1 and the second substrate P2 of the liquid crystal panel P is disposed outside the display region P4, and is larger than the outer portion. The size of the frame portion G is cut (cut line: WCL) of the intermediate sheet piece FXw by the cutting devices 31 and 32. In the present embodiment, the laser cutting is performed by each of the cutting devices 31 and 32 so as to be larger than the size of the outer frame portion G. For example, the width of the outer frame portion G is about 250 μm.

The vibration amplitude (tolerance) of the slit line of the laser processing machine is smaller than the vibration amplitude of the cutting edge. Therefore, in the present embodiment, the intermediate sheet piece FXw of the optical sheet FX having a size larger than the outer shape of the liquid crystal panel P is cut out from the optical sheet FX, and the cut intermediate sheet piece FXw is bonded to the liquid crystal panel. After the P, the intermediate sheet piece FXw is cut along the outer shape of the liquid crystal panel P to be larger than the outer shape of the liquid crystal panel P, and only the vibration tolerance of the slit line is considered (±0.1 mm or less).

(Method of Manufacturing Optical Component Bonding Body)

Fig. 8 is a flow chart showing a method of manufacturing the optical member bonded body of the embodiment.

First, the material roll R1 of the optical sheet FX used for winding is loaded in the roll holding portion 22a. After the completion of the loading, the operator performs initial setting using an operation panel or the like (step S1 shown in FIG. 8). For example, the cutting size, the thickness, the supply speed of the optical sheet FX, the cutting depth of the cutting device 22c (cutting blade), and the roll holding portion 22a are set by the initial setting. The delivery speed, the conveyance speed of the roller conveyor 5, and the like.

When the initial setting is completed, the roll holding unit 22a starts the conveyance of the optical sheet FX under the control of the control unit 40 (step S2 shown in FIG. 8).

The cutting device 22c forms a slit line in the optical sheet FX under the control of the control unit 40 (step S3 shown in the eighth drawing). The slit lines are formed at predetermined intervals in the longitudinal direction of the strip-shaped optical sheet FX. The division portions sandwiched by the pair of slit lines adjacent to each other in the longitudinal direction of the optical sheet FX are each an intermediate sheet piece FXw of the bonded sheet F5.

The roller conveyor 5 conveys the liquid crystal panel P to the bonding area in synchronization with the timing at which the bonding sheet F5 is conveyed to the bonding area under the control of the control unit 40 (step S4 shown in FIG. 8).

In the first bonding apparatus 13 , the first intermediate sheet F1w is bonded to the backlight side of the liquid crystal panel P (step S5 shown in FIG. 8 ) under the control of the control unit 40 . Thereby, the first optical member bonding body PA1 as the second bonding body is formed.

The first cutting device 31 is laser-cut along the outer shape of the liquid crystal panel P by the control of the control unit 40 to be larger than the outer shape of the liquid crystal panel P. For example, the first intermediate sheet piece F1w is cut into a large size of 30 μm to 50 μm with respect to the edge (panel edge) of the liquid crystal panel P. In this way, the first optical member bonding body PA1 is formed so that the second optical member bonding body PA2 composed of the first sheet material F1m is bonded to the surface of the liquid crystal panel P on the backlight side (step S6 shown in FIG. 8). ).

The reversing device 15 is configured such that the backlight side of the liquid crystal panel P is formed on the upper surface by inverting the front and back of the second optical member bonding body PA2 on which the display surface side of the liquid crystal panel P is formed, in accordance with the control of the control unit 40. Further, alignment of the liquid crystal panel P with respect to the second bonding apparatus 17 is performed.

The second bonding sheet 17 is bonded to the surface of the liquid crystal panel P on the display surface side (step S5 shown in FIG. 8) under the control of the control unit 40. Thereby, the third optical member bonding body PA3 as the second bonding body is formed.

The second cutting device 32 is laser-cut to be larger than the outer shape of the liquid crystal panel P along the outer shape of the liquid crystal panel P under the control of the control unit 40. For example, the second intermediate sheet piece F2w is cut into a large size of 30 μm to 50 μm with respect to the edge (panel edge) of the liquid crystal panel P. By this, the third optical member bonding body PA3 is formed such that the second sheet piece F2m is bonded to the surface on the display surface side of the liquid crystal panel P, and the first sheet piece is bonded to the surface of the liquid crystal panel P on the backlight side. The fourth optical member bonding body PA4 composed of F1m (step S6 shown in the eighth embodiment, first step).

In the present embodiment, the adhesive layer F2a (refer to the fourth drawing) which is an adhesive for bonding the liquid crystal panel P and the sheet piece FXm is used, and the storage modulus is 0.56 MPa or less at a temperature of 80 ° C. By. In the present embodiment, for example, an adhesive layer F2a having a storage modulus of 0.24 MPa at a temperature of 80 ° C is used.

The "storage modulus" is measured in accordance with JIS K7244-6:1999 "Testing methods for plastic-dynamic mechanical properties - Part 6: Shear vibration - Non-resonance method". In this case, the viscoelasticity measuring device ("DVA-220" manufactured by IT Measurement and Control Co., Ltd.) was used, and the frequency was set to 1 Hz, and the temperature was raised from 20 ° C to 100 ° C at a temperature increase rate of 10 ° C / min. The storage modulus at 80 °C.

The heating device 50 heats the fourth optical member bonding body PA4 under the control of the control unit 40, and shrinks each of the first sheet F1m and the second sheet F2m to make the outer shape and the first sheet F1m. The outer shape of the two sheet pieces F2m substantially coincides with the outer shape of the liquid crystal panel P.

The conditions (heating temperature, heating time, and the like) of the heat treatment of the fourth optical member bonding body PA4 are determined based on the conditions of the heat treatment predetermined after the step of forming the fifth optical member bonding body PA5 as the discharged product. At this time, the heat treatment conditions of the fourth optical member bonding body PA4 are set so as not to affect the range of the polarized light from the viewpoint of suppressing the color change of the display image. The conditions as described above are stored in advance in the memory portion of the control unit 40. The size of the sheet piece FXm cut out by the intermediate sheet piece FXw by the cutting devices 31 and 32 is determined to be substantially the same as the outer shape of the liquid crystal panel P when the size of the sheet piece FXm cut out by the intermediate sheet piece FXw is thermally contracted according to the above-described heat treatment conditions. size.

For example, the heating temperature of the fourth optical member bonding body PA4 is a temperature in the range of 60° C. to 100° C. which is predetermined in the mounting process or the heat resistance test of the touch panel, and the heating time is set to 15 minutes to 60 minutes. The time of the range. In the present embodiment, it is heated at 80 ° C for 30 minutes. Thereby, in the mounting process of the touch panel or the heat resistance test, the optical member F1X is suppressed from being largely thermally contracted.

In this way, the fourth optical member bonding body PA4 is formed such that the second optical member F12 is bonded to the surface on the display surface side of the liquid crystal panel P, and the first optical member F11 is bonded to the surface of the liquid crystal panel P on the backlight side. The fifth optical member bonding body PA5 (step S7 shown in the eighth figure, the second step).

In a conventional configuration, a polarizing plate cut out of an elongated film is bonded to a liquid crystal panel to form a bonded body. In the bonded body, even if the outer shape of the polarizing plate matches the outer shape of the liquid crystal panel, When heating by a heat endurance test or the like, there is a case where the polarizing plate shrinks in size and is smaller than the display area. For example, when the heat endurance test is performed at a temperature of 80 ° C for 100 hours to 300 hours, the temperature is 80 ° C in the mounting process of the touch panel or the like. In the minute, the polarizing plate is dimensionally shrunk in the range of 250 μm to 1000 μm. When the width of the outer frame portion is set to less than 250 μm, the polarizing plate shrinks in size and is smaller than the display area. Therefore, the outer frame portion cannot be reduced, and the size of the machine is prevented from being reduced.

On the other hand, in the method of manufacturing the optical member bonded body of the present embodiment, the first optical member F11 and the second optical member F12 are bonded to the liquid crystal panel P while being heated and contracted, and the fourth optical member is attached. When the fourth optical member bonding body PA4 is heated by the subsequent heat durability test or the like, the first optical member F11 and the second optical member F12 are prevented from being dimensionally contracted and smaller than the display region. Therefore, the outer frame portion G can be narrowed to achieve enlargement of the display area and miniaturization of the machine.

Further, in the present embodiment, a soft and weak adhesive having a storage modulus of 0.24 MPa at a temperature of 80 ° C in the heat treatment conditions is used as the adhesive layer F2a. Therefore, warpage of the liquid crystal panel P at the time of heat treatment is suppressed as compared with the case of using a hard and strong adhesive. In the present embodiment, the adhesion between the liquid crystal panel P and the sheet piece FXm is not formed to be strong, and the adhesive layer F2a easily follows the shrinkage of the sheet piece FXm during the heat treatment, thereby suppressing the liquid crystal panel P. Warping. Therefore, the manufacturing yield of the fifth optical component bonding body PA5 as a shipment can be improved, and the manufacturing yield of the final product in which the touch panel or the like is mounted on the fifth optical component bonding body PA5 can be improved.

In addition, the first intermediate sheet F1w and the second intermediate sheet F2w which are larger than the first sheet piece F1m and the second sheet piece F2m are bonded to the liquid crystal panel P, whereby the first sheet piece can be easily attached. The outer shape of the F1m and the second sheet piece F2m is adjusted to be larger than the outer shape of the liquid crystal panel P by a desired amount.

Furthermore, even in the optical axis direction, the first intermediate sheet F1w and the second intermediate portion are used. When the position of the sheet piece F2w is changed, the liquid crystal panel P may be aligned and bonded in accordance with the optical axis direction.

Thereby, the accuracy of the optical axis directions of the first optical member F11 and the second optical member F12 with respect to the liquid crystal panel P can be improved, and the highlight and contrast of the optical display element can be improved.

In the present embodiment, the series heating device 50 is described as being provided on the downstream side of the panel transporting of the second cutting device 32. However, the present invention is not limited thereto. For example, the first heating device may be provided on the downstream side of the panel transport (between the first cutting device 31 and the inverting device 15) than the first cutting device 31, and the second heating device may be provided in the second heating device. 2 The cutting device 32 transports the downstream side of the panel. At this time, the first heating device heat-contracts the first sheet piece F1m so that the outer shape of the first sheet piece F1m substantially matches the outer shape of the liquid crystal panel P. On the other hand, in the second heating device, the second sheet piece F2m is heated and contracted so that the outer shape of the second sheet piece F2m substantially matches the outer shape of the liquid crystal panel P.

In the first embodiment, the intermediate sheet piece FXw larger than the outer shape of the sheet piece FXm is bonded to the liquid crystal panel P in the first step to form a second bonded body, and the intermediate sheet piece FXw is along the intermediate sheet piece FXw. The outer shape of the liquid crystal panel P is laser-cut to be larger than the outer shape of the liquid crystal panel P, whereby the first bonded body is formed so that the first bonded body including the liquid crystal panel P and the sheet piece FXm overlapping the liquid crystal panel P is The examples are described, but are not limited thereto. For example, in the first step, the intermediate sheet piece FXw is not formed, and the sheet piece FXm larger than the outer shape of the liquid crystal panel P is bonded to the liquid crystal panel P to form the first bonded body.

Further, in the present embodiment, the optical sheet FX is pulled out from the material roll, and after the liquid crystal panel P is bonded to the intermediate sheet piece FXw which is larger than the outer shape of the liquid crystal panel P, the intermediate sheet piece FXw is cut out to be larger than The case of the sheet piece FXm of the outer shape of the liquid crystal panel P is said Ming, but not limited to this. For example, the present invention can also be applied to a case where a single-piece optical film wafer which is cut into a size larger than the outer shape of the liquid crystal panel P is bonded to a liquid crystal panel without using a raw material roll.

Although the preferred embodiment of the embodiment has been described above with reference to the accompanying drawings, the invention is not limited thereto. The respective shapes, combinations, and the like of the respective constituent members shown in the above examples are examples, and various modifications can be made according to design requirements and the like without departing from the gist of the invention.

1‧‧‧Film bonding system

5‧‧‧Roller conveyor

6‧‧‧Upstream conveyor

7‧‧‧ downstream conveyor

11‧‧‧1st adsorption device

11a‧‧‧ Panel Holder

11b‧‧‧Aligning camera

12‧‧‧1st dust collecting device

13‧‧‧1st bonding device

15‧‧‧Reversal device

15c‧‧ Aligned camera

16‧‧‧2nd dust collecting device

17‧‧‧2nd bonding device

20‧‧‧2nd adsorption device

22‧‧‧Transporting device

22a‧‧‧Reel Holder

22b‧‧‧ Guide roller

22c‧‧‧cutting device

22d‧‧‧blade

22e‧‧‧Winding Department

23‧‧‧ pinch roller

23a‧‧‧Fitting rollers

24‧‧‧Free Roller Conveyor

26‧‧‧Adsorption pad

31‧‧‧1st cutting device

32‧‧‧2nd cutting device

40‧‧‧Control Department

50‧‧‧ heating device

F1‧‧‧1st optical sheet

F2‧‧‧2nd optical sheet

F3a‧‧‧Isolated parts

P‧‧‧LCD panel (optical display parts)

PA1‧‧‧1st optical component bonding body (2nd bonding body)

PA2‧‧‧2nd optical component bonding body (1st bonding body)

PA3‧‧‧3rd optical component bonding body (No. 2 fits)

PA4‧‧‧4th optical component bonding body (1st bonding body)

PA5‧‧‧Fifth optical component bonding body (optical component bonding body)

R‧‧‧ rails

R1‧‧‧ raw material rolls

R2‧‧‧Isolation Roll

S‧‧‧stops

Claims (2)

A method for producing an optical member bonding body, which is a method for manufacturing an optical display component (P) bonded optical component (F1X), comprising: a first step, which is larger than the optical display component (P) The first optical member sheet (FXm) having the outer shape is bonded to the optical display component to form a first bonded body, and the second step of heating the first bonded body to form the first optical member sheet (FXm) shrinks, and the outer shape of the first optical member sheet substantially matches the outer shape of the optical display component, whereby the first bonded body is formed to include the optical display component and the optical display component The optical member bonding body of the optical member (F1X) that overlaps each other. The method of manufacturing an optical member bonded body according to the first aspect of the invention, wherein, in the first step, the first optical member sheet having an outer shape larger than the outer shape of the optical display member is not bonded to the optical display member. The second optical member sheet (FXw) which is larger than the outer shape of the first optical member sheet (FXm) is bonded to the optical display member to form the second bonded body (PA1). And the second optical member sheet is laser-cut along the outer shape of the optical display component to be larger than the outer shape of the optical display component (P), thereby forming the second bonding body to include the optical display component. And the first bonding body (PA2) of the first optical member sheet (FXm) that overlaps with the optical display component.