TW201341140A - Manufacturing system of optical display device and manufacturing method of optical display device - Google Patents

Abstract

A manufacturing system of an optical display device includes, a table that supports an optical display component, a feeding-unit that feeds an optical-member-sheet, a controller that adjusts a cutting direction by obtaining a data of an in-plane distribution of an optic axis of the optical-member-sheet, a first cutting apparatus that cuts the optical-member-sheet larger than a display region, a separating unit that separates a sheet from a separate-film, a combining-head that tilts while holding the sheet, a driving apparatus that relatively moves the combining-head and the table so that a cut side of the sheet and a side of the optical display component matches or are parallel, and a second cutting apparatus that cuts off a facing-portion of the sheet, which faces the display region, and a surplus portion which is an outside portion of the facing-portion.

Description

Production system of optical display device and production method of optical display device

The present invention relates to a production system of an optical display device and a method of producing the optical display device.

The present invention claims priority based on Japanese Patent Application No. 2012-042840 filed on Feb. 29, 2012, and Japanese Patent Application No. 2012-084832, filed on Jan. Right and quote its content.

Conventionally, in a production system of an optical display device such as a liquid crystal display, an optical component such as a polarizing plate attached to a liquid crystal panel (optical display member) is cut out from a long film to form a layer conforming to the size of a display region of the liquid crystal panel. After being packaged and transported to another production line, it is attached to the liquid crystal panel (for example, refer to Patent Document 1).

For example, the layer is obtained by using a long optical film as a starting material and cutting it into a rectangular shape with a cutter.

Fig. 15 is a schematic view showing a method of cutting out a conventional optical film slice.

First, as shown in Fig. 15(a), the optical film 101 is sent out by the transport device 100.

Next, as shown in Fig. 15(b), the optical film 101 sent by the conveying device 100 It is cut at an oblique angle by a cutting device not shown. Thereby, the intermediate layer of the optical film (the first intermediate film 102) is cut. In the bevel cutting step, the first intermediate film 102 is cut out from the optical film 101 at a specific angle so that the target optical axis direction in the optical film slice faces a direction suitable for the target liquid crystal display device.

Next, as shown in Fig. 15(c), the sheet-like assembly is laminated on the first intermediate film 102 by the film stacking device 110. The film laminating apparatus 110 has a pair of rolls 111, 112 and a roll 113 for feeding the sheet-like unit. The layered sheet member fed from the drum 113 and the first intermediate film 102 cut at a specific angle are stacked by a pair of rolls 111, 112 and sent to the next step.

Next, as shown in Fig. 15(d), the laminated film in which the layered member fed from the drum 113 and the first intermediate film 102 cut at a specific angle are laminated is cut by a not shown in the drawing. The breaking device is cut in half. Thereby, the second intermediate film 103 is cut out.

Next, as shown in Fig. 15(e), the quality of the cut second intermediate film 103 is visually inspected.

Next, as shown in Fig. 15(f), the second intermediate film 103 is placed on the stage 120. The stage 120 is provided with a mark 121 for positioning the second intermediate film 103. When the second intermediate film 103 is placed on the stage 120, the side cut at an oblique angle in the step shown in Fig. 15(d) is used as a reference, and is positioned at the mark 121.

Next, a plurality of optical film slices 104 are cut out from the second intermediate film 103 by a cutting device not shown. In the cutting device, arranged in a checkered manner in plan view, the plurality of cutters arranged at intervals of the long side length of the optical film slice 104 and the intervals of the short side lengths of the corresponding optical film slices 104 are arranged. The plurality of cutters, the area cut by the four cutters in a rectangular shape, is the cut-out area of the optical film slice 104.

The cutting direction of the second intermediate film 103 by the cutting device (for example, the extending direction of the cutter arranged corresponding to the interval of the long side length of the optical film slice 104) is such that the longitudinal direction of the optical film 101 is at a target angle ( Configure according to the angle set by the design specifications. For example, in the case where the optical axis of the optical film slice 104 is designed to be 7° with respect to the long side of the optical film slice 104, the cutting direction of the cutting device is set to 7° with respect to the longitudinal direction of the optical film 101.

[Patent Literature]

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

In the step of Fig. 15(f), the cutting direction of the second intermediate film 103 is set based on the longitudinal direction of the optical film 101, because generally, the elongated optical film 101 is used. The resin film dyed with the dichroic dye is produced by stretching on one axis, and the optical axis direction of the optical film 101 is substantially consistent with the extending direction of the resin film. However, regarding the optical axis of the optical film 101, the entire optical film 101 is not the same, and there is a slight difference in the width direction of the optical film 101. For example, in the case where the resin film dyed by the dichroic dye is stretched toward one axis to produce the optical film 101, the central portion of the optical film 101 is caused by the problem of uneven thickness of the resin film or uneven dyeing of the dichroic dye. A deviation occurs between a portion of the optical axis direction and an optical axis direction of a portion (edge portion) near the end of the optical film 101. Therefore, when a plurality of optical film slices 104 are cut out from the optical film 101, a deviation of the optical axis occurs between the optical film slices 104 in accordance with the optical axis deviation.

As described above, in the conventional method of cutting an optical film slice, there is a problem that the optical axis direction is deviated between the plurality of cut optical film slices. When the optical axis direction deviation occurs between a plurality of optical film slices, the optical axis direction deviation also occurs in the optical display device produced by the production system of the optical display device. Recently, the high contrast of display devices has evolved, requiring more stringent light than in the past. Axis accuracy. For example, in the past mobile phones, the tolerance of the optical axis was ±1°, but the smart phone or tablet type message terminal device required an optical axis tolerance of ±0.25°, and it is also expected that the precision required in the future will be more stringent.

The present invention has been made in view of the foregoing problems, and an object thereof is to provide a production system of an optical display device and a method of producing an optical display device capable of suppressing generation of an optical axis deviation in an optical display device.

Further, in the above-described conventional structure, in consideration of variations in the dimensions of the liquid crystal panel and the ply, and the lamination deviation (positional deviation) of the ply of the liquid crystal panel, a ply which is slightly larger than the display region is cut. Therefore, an unnecessary area (frame portion) is formed in the peripheral portion of the display region, which has a problem that the size of the device is prevented from being reduced.

Another object of the present invention is to provide a production system of an optical display device capable of reducing the frame portion around the display area to achieve the expansion of the display area and miniaturization of the machine.

In order to achieve the foregoing object, the present invention takes the following approach.

(1) A production system for an optical display device according to an aspect of the present invention, which is a production system for bonding an optical component to an optical display member to form an optical display device, comprising: a pedestal supporting the optical display member; The strip-shaped optical component layer having a width wider than the display area of the optical display part is taken out from the roll drum and the separation layer; the control device obtains the in-plane distribution data of the optical component layer Calculating an in-plane average optical axis direction of the optical component layer according to an in-plane distribution data of the optical component layer, and adjusting a cutting direction of the optical component layer such that an average optical axis direction of the optical component layer is opposite a direction of the cutting direction of the optical component layer is a target angle; the first cutting device is in a cutting direction adjusted by the control device, and the separation layer is left in the optical component layer, and the The optical component layer is cut to a larger size than the display area to obtain a ply; the peeling part is to peel the ply from the separation ply; the bonding head is attached to the ply Arcuate retaining surface, and is so held on the sheet holding surface of the layer bonded to the optical display unit, along which the holding surface a bending movement; the driving device moves the bonding head relative to the pedestal such that the cut edge of the layer cut by the first cutting device is aligned or parallel with one side of the optical display member, and The bonding head is driven to perform the tilting movement to maintain and fit the layer; and the second cutting device is the remaining portion of the display area of the layer and the remaining side of the facing portion Partially cut and the optical component corresponding to the size of the display area is cut from the ply.

(2) In the aspect of the above (1), the control device detects two optical axes intersecting at a maximum angle in the plane of the optical component layer, and calculates an axis of the angle division of the two optical axes. As the in-plane average optical axis of the optical component layer.

(3) In the aspect of the above (1) or (2), further comprising a photographing device for photographing a state in which the layer is held on the holding surface, the driving device causing the sticker to be based on a photographing result of the photographing device The head is moved relative to the pedestal such that the cut edge of the ply is aligned or parallel with one of the sides of the optical display member.

(4) The aspect of any one of (1) to (3) above, further comprising a storage device for storing in-plane distribution data of the optical axis of the optical component layer.

(5) In the aspect of any one of (1) to (4) above, the inspection apparatus for inspecting the optical axis of the optical component layer at a plurality of inspection positions in the width direction of the optical component layer.

(6) In the aspect of the above (5), the inspection apparatus has an analyzer movable in the width direction of the optical component layer; and the inspection apparatus moves the analyzer along the width direction of the optical component layer by The analyzer detects the optical axis of the optical component layer to inspect the optical axis of the optical component layer at a plurality of inspection positions in the width direction of the optical component layer.

(7) A method of producing an optical display device according to another aspect of the present invention, which is a method for producing an optical display device by bonding an optical member to an optical display member, which has the following steps The first step is to roll out the strip optical component layer wider than the display area of the optical display component from the roll roll and the separation layer; the second step is to obtain the optical axis of the optical component layer. The inner distribution data is calculated according to the in-plane distribution data of the optical component layer, and the direction of the in-plane average optical axis of the optical component layer is calculated, and the cutting direction of the optical component layer is adjusted to make the in-plane average of the optical component layer The optical axis direction is at a target angle with respect to the cutting direction of the optical component layer; and the third step is performed in the adjusted cutting direction so that the separation layer remains in the optical component layer, and the optical component is The layer is cut to a larger size than the display area to obtain a layer; the fourth step is to peel the layer from the separation layer; and the fifth step is to attach the layer to the bonding head. The arc-shaped holding surface is configured such that the layer held by the holding surface is attached to the optical display assembly, and the bonding head is tilted and moved along the bending of the holding surface; in the sixth step, the sticker is attached Combine the head and support the optical display The pedestal of the piece is relatively moved such that the cut edge of the cut layer is aligned or parallel with one side of the optical display member, and the bonding is driven to perform the tilting movement to maintain and fit the layer. And a seventh step of cutting the opposite portion of the display region of the layer and the remaining portion of the outer portion of the facing portion, and cutting the optical component corresponding to the size of the display region from the layer.

(8) In the aspect of the above (7), the two optical axes intersecting at the maximum angle in the plane of the optical component layer are detected, and the axis of the angular division of the two optical axes is calculated as the axis. The in-plane average optical axis of the optical component layer.

(9) A production system for an optical display device according to another aspect of the present invention is a production system for bonding an optical component to an optical display component to form an optical display device, comprising: a bonding device, which has a width A strip-shaped optical component layer having a longer length on either side of the long side and the short side of the display portion of the optical display member is unwound from the roll drum and is longer than the other side of the long side or the short side of the display area After the optical component layer is cut to form a layer, the layer is bonded to the optical display component; And a cutting device for cutting a remaining portion disposed outside the opposite portion of the display region from a layer bonded to the optical display member to form an optical component corresponding to a size of the display region; wherein The bonding apparatus has a winding-out portion that winds the optical component layer together with the separation layer sheet, and the cutting portion, in which the separation layer remains in the optical component layer, The optical component layer is cut to obtain the ply; the peeling portion is peeled off from the separating ply; and the bonding head is attached to the ply and held at the holding surface, and will remain in The layer of the holding surface is attached to the optical display member.

(10) In the aspect of the above (9), the control device further determines a relative bonding position of the optical display member and the layer according to the inspection data of the optical axis direction of the optical component layer; and the sticker The splicing head adheres the layer held on the holding surface to the optical display member according to the relative bonding position determined by the control device.

(11) In the aspect of the above (10), the bonding head is held by the layer of the holding surface, and the position is aligned by the moving direction of the bonding head in the horizontal direction, the vertical direction thereof, and the turning direction.

(12) The aspect of any one of (9) to (11), wherein the bonding device further has a detecting portion for detecting a defect mark printed on the optical component layer, and detecting a defect flag of the optical component layer The part will remain in the fitting head and be transported to the disposal location.

(13) In the aspect of any one of (9) to (12), further comprising a turntable for moving the optical display member to the carry-in position, the carry-out position, and the bonding of the layer to the optical display member position.

(14) In the aspect of any one of (9) to (13), the bonding head is attached to the layer and held at the arc-shaped holding surface, and is held in the holding surface. The ply is attached to the optical display assembly and is tiltably movable along the curvature of the retaining surface.

(15) A production system for an optical display device according to another aspect of the present invention is a production system for bonding an optical component to an optical display member to form an optical display device, comprising: a first bonding device, which has a width a strip-shaped first optical component layer having a wider length than either one of a long side and a short side of the display portion of the optical display member is unwound from the first roll, and is further in a longer side or a shorter side than the display area After the first optical component layer is cut to form a first layer, the first layer is bonded to the side of the positive/negative side of the optical display member to form an optical component bonding body. a second bonding device that winds a strip-shaped second optical component layer having a width wider than either one of a long side and a short side of the display area of the optical display member from the second roll roll, and After the second optical component layer is cut to form a second ply for a longer length of the long side or the short side of the display area, the second ply is attached to the first layer of the optical component bonding body. The side of the sheet; and the first cutting device And connecting the first layer and the second layer of the optical display member to the remaining portion disposed outside the opposite portion of the display region, so that the first optical component composed of the first optical component layer and a second optical component composed of the second optical component layer is formed as an optical component corresponding to the size of the display area; wherein the first bonding device has a first winding portion, the first optical component layer The first roll drum is unwound together with the first separation layer sheet; the first cutting portion is configured to leave the first separation layer sheet in the first optical component layer, and the first optical component layer is Cutting to obtain the first ply; the first peeling portion is to peel the first ply from the first separating ply; and the first bonding head is to adhere the first ply to maintain At the first holding surface, and bonding the first layer of the first holding surface to the side of the positive/negative surface of the optical display member; further, the second bonding device has: a second take-up portion from which the second optical component layer is The second separation layer is rolled out together; the second cutting portion is configured to leave the second separation layer in the state of the second optical component layer, and the second optical component layer is cut to obtain the second layer a second peeling portion, the second layer is from the The second separation layer is peeled off; and the second bonding head is attached to the second holding surface, and the second layer held on the second holding surface is bonded to The optical component is bonded to the side of the first layer side of the body.

(16) The aspect of the above (15), further comprising: controlling the first relative sticker of the optical display component and the first layer according to the inspection data of the optical axis direction of the first optical component layer Positioning, and determining a second relative bonding position of the optical component bonding body and the second layer according to the inspection data of the optical axis direction of the second optical component layer; the first bonding of the first bonding device The first layer of the first holding surface held by the head is attached to the side of the positive/negative side of the optical display member according to the first relative bonding position determined by the control device; and the second The second bonding head of the bonding device attaches the second layer held on the second holding surface to the first layer side of the optical component bonding body according to the second relative bonding position determined by the control device The face.

(17) The aspect of the above (16), wherein the first bonding head of the first bonding device is held by the first layer of the first holding surface, and the moving direction of the bonding head by the horizontal direction Positioning in the vertical direction and the direction of rotation; and the second bonding head of the second bonding device is held on the second layer of the second holding surface, and the moving direction of the bonding head in the horizontal direction Position calibration in its vertical direction and in the direction of rotation.

(18) The first bonding apparatus further includes a first detecting unit that detects a defect mark printed on the first optical component layer, in the aspect of any one of the above (15) to (17), a portion of the defect mark of the first optical component layer is retained in the first bonding head and transported to the first disposal position; and the second bonding device further has a defect detecting mark printed on the second optical component layer The second detecting unit detects that the portion of the second optical component layer having the defect mark is held by the first bonding head and is transported to the second disposal position.

(19) In any one of the aspects (15) to (18), further comprising a turntable for moving the optical display member to the carry-in position and the carry-out position, and attaching the first layer to the optical display member The bonding position (first bonding position) and the bonding position (second bonding position) of the second layer sheet to the optical component bonding body.

(20) In the aspect of any one of (15) to (19), the first bonding apparatus further has a first layer sheet conveying device, and the first material from which the first optical component layer is wound The roll cylinder winds the first optical component layer and transports the first optical component layer along the longitudinal direction thereof; the second bonding device further has a second layer conveyance device that winds the second optical a second roll of the component layer unwinds the second optical component layer and transports the second optical component layer along a longitudinal direction thereof; and a transport direction of the first optical component layer and the second optical component layer The transport directions are parallel to each other.

(21) The aspect of any one of (15) to (20), further comprising: a third bonding device having a width longer than a length of one of a long side and a short side of the display region of the optical display member The wide strip-shaped third optical component layer is unwound from the third roll drum, and the third optical component layer is cut to form a third length longer than the other of the long side or the short side of the display area After laminating, the third ply is attached to the other of the front/reverse faces of the optical display member; and the second cutting device is disposed from the third ply bonded to the optical display member. The remaining portion of the opposite side of the opposite portion of the display region is cut to form an optical component corresponding to the size of the display region; wherein the third bonding device has a third winding portion for removing the third optical component layer The third roll drum is unwound together with the third separation layer; the third cutting portion is configured to leave the third separation layer in the third optical component layer, and cut the third optical component layer Breaking to obtain the third layer; the third peeling portion is to separate the third layer from the third layer And peeling off the sheet; and the third bonding head, the third layer sheet is attached and held at the third holding surface, and the third layer sheet held on the third holding surface is attached to the optical display unit The other side of the positive/negative side The face.

(22) In the aspect of (21), the control device further determines a third relative sticker of the optical display component and the third layer according to the inspection data of the optical axis direction of the third optical component layer. And a third bonding head of the third bonding device, according to the third relative bonding position determined by the control device, bonding the third layer held on the third holding surface to the optical display The other side of the front/back of the part.

(23) The third bonding apparatus has a third detecting portion that detects a defect mark printed on the third optical component layer, and the third optical component is detected, in the aspect of the above (21) or (22) The portion of the defect mark of the layer is held in the third bonding head and transported to the third disposal position.

(24) In the aspect of any one of (21) to (23), the third bonding apparatus further has a third layer conveying device for winding the third material of the third optical component layer Rolling the second optical component layer, and transporting the third optical component layer along the longitudinal direction thereof; and the conveying direction of the first optical component layer, the conveying direction of the second optical component layer, and the third The transport directions of the optical component layers are parallel to each other.

(25) In the aspect of any one of (21) to (24), the remaining portion cut from the first layer sheet, the second layer sheet, and the third layer sheet is collectively obtained from the optical Peel off at the display part.

(26) The aspect of any one of (21) to (25), wherein the first cutting device and the second cutting device are laser cutting machines, the first cutting device and the second cutting device The breaking device is connected to the same laser output device, and the laser output from the laser output device is branched and supplied to the first cutting device and the second cutting device.

(27) The aspect of any one of (21) to (26), wherein at least one of the first bonding head, the second bonding head, and the third bonding head is attached to the head a layer, the second layer, and the first At least one of the three-layer sheets is attached and held at at least one of the first holding surface, the second holding surface, and the third holding surface in an arc shape, and is attached to the layer held by the holding surface The optical display assembly or the optical component bonding body is coupled to and tilted along the curved surface of the holding surface.

According to an aspect of the present invention, a production system of an optical display device capable of suppressing generation of an optical axis deviation in an optical display device and a method of producing the optical display device can be provided.

Moreover, according to another aspect of the present invention, it is possible to provide a production system of an optical display device which can reduce the frame portion around the display area and achieve the purpose of expanding the display area and miniaturizing the machine.

1,1A, 2‧‧‧ film bonding system

5‧‧‧Main conveying equipment

5a‧‧‧ starting point

5b‧‧‧end point

5c‧‧‧ rack

6‧‧‧First delivery equipment

6a‧‧‧First initial position

6b‧‧‧first end position

7‧‧‧Second secondary conveyor

7a‧‧‧ second initial position

7b‧‧‧second end position

8‧‧‧First transport device

9‧‧‧cleaning device

11‧‧‧First rotary machine tool

11a‧‧‧ Initial position of the first turntable

11b‧‧‧First turntable end position

11c‧‧‧First fit position

11d‧‧‧Second fitting position

11e‧‧‧film stripping position

12‧‧‧Second transport device

13‧‧‧First bonding device

14‧‧‧film stripping device

15‧‧‧Second laminating device

16‧‧‧Second rotary machine tool

16a‧‧‧Second turntable initial position

16b‧‧‧second turntable end position

16c‧‧‧ third fit position

16d‧‧‧Finished inspection position

17‧‧‧ Third transport device

18‧‧‧ Third bonding device

19‧‧‧Checking device

21‧‧‧fourth transport device

22‧‧‧ fifth transport device

24‧‧‧Storage device

25‧‧‧Control device

31‧‧‧Ply conveying device

31a‧‧‧Departure

31b‧‧‧First cutting device

31c‧‧‧ Blade

31d‧‧‧Winding Department

31e‧‧‧Separation layer peeling position (peeling position)

32‧‧‧Fitting head

32a‧‧‧ Keep face

33‧‧‧ drive

34‧‧‧First inspection camera

35‧‧‧Second detection camera

36‧‧‧ Third detection camera

37‧‧‧Fourth detection camera

38‧‧‧ Fifth detection camera

39‧‧‧Location Calibration Table

39a‧‧‧Loading surface

40‧‧‧Manufacturer for optical component layers

41a, 41c‧‧‧Departs

41b, 41d‧‧‧Winding Department

42‧‧‧Checking device

43‧‧‧Light source

44‧‧‧Analyzer

45‧‧‧Cutter

50‧‧‧Second cutting device

51‧‧‧First cutting device

52‧‧‧Second cutting device

53‧‧‧Laser output device

60‧‧‧Fitting head

60a‧‧‧ Keep face

61‧‧‧Guide bars

62‧‧‧Finishing roller

100‧‧‧Transporting device

101‧‧‧Optical film

102‧‧‧First intermediate film

103‧‧‧Second intermediate film

104‧‧‧ Optical film sectioning

110‧‧‧film stratification device

111,112‧‧‧ rolls

113‧‧‧Roller

120‧‧‧ stage

121‧‧‧ sign

131b‧‧‧cutting department

140‧‧‧Discarded location

151‧‧‧ camera

CL‧‧‧ transverse line

CP‧‧‧ checkpoint

EL‧‧‧ edge line

F‧‧‧Transfer direction

F0‧‧‧ mother piece

F0A‧‧‧After inspection

F1‧‧‧First optical component layer

F2‧‧‧Second optical component layer

F3‧‧‧ third optical component layer

F1a‧‧‧Optical component body

F2a‧‧‧Adhesive layer

F3a‧‧‧Separation layer

F4a‧‧‧Surface protection film

F5‧‧‧Fitting layer

F6‧‧‧ polarizer

F7‧‧‧ first film

F8‧‧‧second film

F11‧‧‧First optical component

F12‧‧‧Second optical component

F13‧‧‧ Third optical component

F1X‧‧‧ optical components

F1m‧‧‧ first layer

F2m‧‧‧Second layer

F3m‧‧‧ third layer film

FXm‧‧‧ layer

FX‧‧‧ optical component layer

G‧‧‧Border Department

L1-L4‧‧‧ axis

Lc‧‧‧ cut edge

Lp‧‧‧ side

Lp1‧‧‧ side

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

PA3‧‧‧The third optical component fit

PA4‧‧‧Four optical component bonding body

PA5‧‧‧Fix optical component fit

R0‧‧‧original paper reel

R0A‧‧‧reel after inspection

R1‧‧‧ Roller

R2‧‧‧Separation roller

S1-S7‧‧‧ steps

V1‧‧‧first optical axis

V2‧‧‧second optical axis

V3‧‧‧ average optical axis

Vc‧‧‧ cut direction

WCL‧‧‧ cut line

θ _max ‧‧‧maximum offset angle

θ _min ‧‧‧minimum offset angle

θ _mid ‧‧‧average offset angle

γ ‧‧‧ angle

Fig. 1 is a schematic plan view showing a film bonding system according to a first embodiment of the present invention.

Fig. 2 is a plan view showing a liquid crystal panel of the embodiment.

Fig. 3 is a cross-sectional view taken along line A-A of Fig. 2, showing a plan view of a main part of a cutting apparatus for optical film slicing.

Fig. 4 is a cross-sectional view showing the optical component layer of the embodiment.

Figure 5 is a plan view of the aforementioned film bonding system.

Fig. 6 is a side view showing the main part of the aforementioned film bonding system.

Fig. 7 is a side view showing a manufacturing apparatus of the optical component layer.

Fig. 8 is a plan view showing the main part of the manufacturing apparatus of the optical component layer.

Fig. 9A is a diagram showing the in-plane distribution of the optical axis of the mother piece.

Figure 9B shows the in-plane distribution of the optical axis of the master.

Figure 9C shows the in-plane distribution of the optical axis of the master.

Fig. 10 is a perspective view showing a state in which a plurality of optical component layers are cut out from the layer after inspection.

Figure 11 is an explanatory view of a method of cutting a layer from an optical component layer.

Fig. 12A is an explanatory view showing a method of adjusting the cutting direction of the optical component layer.

Fig. 12B is an explanatory view showing a method of adjusting the cutting direction of the optical component layer.

Fig. 13 is an explanatory view showing a method of laminating the layers with respect to the optical display member.

Figure 14 is a flow chart of a method of producing an optical display device.

Fig. 15 is a view showing a cutting method of a conventional optical film slice.

Fig. 16 is a schematic side view showing the film bonding system of the second embodiment.

Figure 17 is a plan view of a film bonding system.

Figure 18 is a schematic side view of a laminating device of a film bonding system.

Fig. 19A is a view showing an example of a method of determining a bonding position of a layer with respect to a liquid crystal panel.

Fig. 19B is a view showing an example of a method of determining a bonding position of a layer with respect to a liquid crystal panel.

Fig. 20 is a schematic side view showing the film bonding system of the third embodiment.

Fig. 21 is a schematic view of a bonding apparatus applied to the film bonding system of the fourth embodiment.

Fig. 22 is a plan view showing a cutting method of the remaining portion of the ply.

(First embodiment)

Hereinafter, a first embodiment of the present invention will be described with reference to the drawings. In the present embodiment, a film bonding system which is a part of a production system of an optical display device will be described.

Fig. 1 is a schematic configuration diagram of a film bonding system 1 of the present embodiment. In the film bonding system 1 , for example, a film-shaped optical component such as a polarizing film, a retardation film, or a brightness-increasing film is bonded to a panel such as a liquid crystal panel or an organic electroluminescence (OEL) panel. Optical display component. The film bonding system 1 is part of a production system for producing an optical display device including the optical display member and the optical assembly. In the film bonding system 1, a liquid crystal panel P is used as the optical display member. In the first drawing, for convenience of illustration, the film bonding system 1 is divided into upper and lower layers to draw.

Fig. 2 is a plan view of the liquid crystal panel P seen from the thickness direction of the liquid crystal layer P3. The liquid crystal panel P includes a first substrate P1 having a rectangular shape in 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 and the second substrate. Between P2. The liquid crystal panel P has a rectangular shape along the outer shape of the first substrate P1 in plan view (plan view), and a region inside the outer periphery of the liquid crystal layer P3 is the display region P4.

Figure 3 is a cross-sectional view taken along line A-A of Figure 2. The first optical component layer F1, the second optical component layer F2, and the third optical component layer F3 of the elongated strip are appropriately bonded to the front/rear surface of the liquid crystal panel P (refer to FIG. 1 , hereinafter collectively referred to as an optical component The layer FX) is cut out of the first optical component F11, the second optical component F12, and the third optical component F13 (hereinafter, collectively referred to as optical component F1X). In the present embodiment, the first optical unit F11 and the third optical unit F13 which are polarizing films are bonded to each other on both the backlight side and the display surface side of the liquid crystal panel P. Further, on the backlight side of the liquid crystal panel P, a second optical component F12 as a luminance increasing film which is superposed on the first optical component F11 is further bonded. Further, the first optical module F11, the second optical component F12, and the third optical component F13 are from the first layer F1m, the second layer F2m, and the third layer F3m (hereinafter, collectively referred to as a layer FXm) which will be described later. Cut out (window cut).

Fig. 4 is a partial cross-sectional view of the optical component layer FX attached to the liquid crystal panel P. The optical component layer FX has a film-shaped optical module body F1a, an adhesive layer F2a provided on one surface side (the upper side of FIG. 4) of the optical module body F1a, and a layer 15b that can be separated and separated by the adhesive layer F2a. Light The separation layer F3a on the side of one side of the module body F1a; and the surface protection film F4a laminated on the other side (the lower side of FIG. 4) of the optical unit body F1a. The optical module body F1a has a function of a polarizing plate across the entire area of the display area P4 of the liquid crystal panel P and its peripheral area. In addition, for convenience of illustration, the hatching of each layer in Fig. 4 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 one surface 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 module 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 one side of the polarizing mirror F6, and a bonding agent or the like on the other side of the polarizing mirror F6. The second film F8. The first film F7 and the second film F8 protect the protective film such as the polarizer F6.

Further, the optical module body F1a may have a single layer structure composed of one optical layer, 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 A surface treatment may also be applied 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 sheet F3a may be bonded to the surface on one side of the optical module body F1a via the adhesive layer F2a.

Fig. 5 is a plan view (top view) of the film bonding system 1. Hereinafter, the film bonding system 1 will be described with reference to Figs. 1 and 5 . In addition, the arrow F in the figure shows the conveyance direction of the liquid crystal panel P. In the following description, the upstream side in the transport direction of the liquid crystal panel P is referred to as the panel transport upstream side, and the downstream side in the transport direction of the liquid crystal panel P is referred to as the panel transport downstream side.

The film bonding system 1 uses the specific position of the main conveying device 5 as the starting point 5a and the ending point 5b of the bonding step. The film bonding system 1 is provided with a first sub-conveying device 6 and a second sub-conveying device 7 extending from the main conveying device 5 in the right-angle direction from the starting point 5a; from the starting point 5a toward the first initial position 6a of the first sub-conveying device 6 a first transfer device 8 that transports the liquid crystal panel P, a cleaning device 9 that is disposed on the first sub-transport device 6, and a first rotary machine tool 11 that is disposed on the downstream side of the panel transport of the first sub-conveying device 6; a first transfer position 6b of the sub-conveying device 6 transports the second transfer device 12 of the liquid crystal panel P toward the first turntable initial position 11a of the first rotary machine tool 11; and a first fit disposed around the first rotary machine tool 11 The device 13, the second bonding device 15, and the film peeling device 14.

Further, the film bonding system 1 includes a second rotary machine tool 16 provided on the downstream side of the panel transfer of the first rotary machine tool 11; and the first rotary machine tool 11 from the first turntable end position 11b to the second rotary machine tool a third transfer device 17 that transports the liquid crystal panel P at the second turntable initial position 16a of 16; a third bonding device 18 and an inspection device 19 that are disposed around the second rotary machine tool 16; and a panel that is disposed on the second rotary machine tool 16 Transporting the second sub-conveying device 7 on the downstream side; transporting the liquid crystal surface from the second turret end position 16b of the second rotary machine tool 16 toward the second initial position 7a of the second sub-conveying device 7 The fourth conveying device 21 of the plate P; and the fifth conveying device 22 that conveys the liquid crystal panel P from the second end position 7b of the second sub-conveying device 7 toward the end point 5b of the main conveying device 5.

The film bonding system 1 uses a driven main conveying device 5, each auxiliary conveying device (the first auxiliary conveying device 6 and the second auxiliary conveying device 7), and each rotary machine tool (the first rotary machine tool 11 and the second The production line formed by the rotary machine tool 16) transports the liquid crystal panel P, and sequentially applies specific processing to the liquid crystal panel P. The liquid crystal panel P is transported on the production line with its front/reverse surfaces horizontal.

The liquid crystal panel P is, for example, in the main transport device 5, and transports the short side of the display region P4 toward the transport direction; each of the sub transport devices (the first sub transport device 6 and the second sub transport device that are perpendicular to the main transport device 5) 7), the long side of the display area P4 is transported in the transport direction; in each of the rotary machine tools (the first rotary machine tool 11 and the second rotary machine tool 16), the long side of the display area P4 is oriented toward each of the rotary tables. The machine tool (the first rotary machine tool 11 and the second rotary machine tool 16) is transported in the radial direction. The symbol 5c in the figure corresponds to the liquid crystal panel P, and displays the rack transported along the main transport device 5.

The layer (corresponding to the optical component F1X) of the bonding layer sheet F5 of a specific length is cut out from the strip-shaped optical component layer FX with respect to the front/rear surface of the liquid crystal panel P. Each part of the film bonding system 1 is integrally controlled by a control device 25 as an electronic control unit.

The first conveying device 8 can hold the liquid crystal panel P and freely transport it in the vertical direction and the horizontal direction.

The first conveying device 8 conveys, for example, the liquid crystal panel P held by the adsorption to the first initial position 6a (the left end portion of the fifth drawing) of the first sub-conveying device 6 in a horizontal state, at which position The adsorption is released, and the liquid crystal panel P is transferred to the first sub-conveying device 6.

The cleaning device 9 is, for example, washed by water, brushed and washed with respect to the front/reverse surface of the liquid crystal panel P, and thereafter, the liquid on the front/rear surface of the liquid crystal panel P is removed. In addition, the cleaning device 9 can also For dry cleaning, static elimination and dust collection are performed on the front/back side of the liquid crystal panel P.

The second transfer device 12 can hold the liquid crystal panel P and freely transport it in the vertical direction and the horizontal direction. The second transfer device 12 directly transports the liquid crystal panel P held by the adsorption to the first turntable initial position 11a of the first rotary machine tool 11 in a horizontal state, and at this position, the adsorption action is released, and the liquid crystal is discharged. The panel P is delivered to the first rotary machine tool 11.

The first rotary machine tool 11 is a disk-shaped turntable having a rotary axis in the vertical direction, and the left end portion of Fig. 5 (plan view) is used as the first turntable initial position 11a, and is rotationally driven in the clockwise direction. The first rotary machine tool 11 is a first bonding position 11c at a position (the upper end portion of Fig. 5) that is rotated 90° in the clockwise direction from the first turret initial position 11a. At the first bonding position 11c, the bonding of the first optical component F11 on the backlight side is performed by the first bonding apparatus 13.

The first rotary machine tool 11 is a film peeling position 11e at a position (the upper right end portion of Fig. 5) which is rotated by 45° in the clockwise direction from the first bonding position 11c. At the film peeling position 11e, peeling of the surface protective film F4a of the first optical component F11 is performed by the film peeling device 14.

The first rotary machine tool 11 is a second attachment position 11d at a position (right end position in Fig. 5) that is rotated by 45° in the clockwise direction from the film peeling position 11e. At the second bonding position 11d, the bonding of the second optical component F12 on the backlight side is performed by the second bonding apparatus 15.

The first rotary table machine 11 is a first turntable end position 11b at a position (the lower end portion in Fig. 5) which is rotated 90° clockwise from the second bonding position 11d. At the first turntable end position 11b, the carry-out operation is performed by the third transfer device 17.

The third transport device 17 holds the liquid crystal panel P and is freely transported in the vertical direction and the horizontal direction. The third transport device 17 transports the liquid crystal panel P held by the adsorption to the second turntable initial position 16a of the second rotary machine tool 16, for example, and performs liquid transfer during the transfer. The positive/negative surface of the crystal panel P is reversed, and the adsorption is released at the second turntable initial position 16a, and the liquid crystal panel P is transferred to the second rotary machine tool 16.

The second rotary machine tool 16 is a disk-shaped turntable having a rotary axis in the vertical direction, and the upper end portion of Fig. 5 (plan view) is used as the second turntable initial position 16a, and is rotationally driven in the clockwise direction. The second rotary machine tool 16 is a third bonding position 16c at a position (right end portion of Fig. 5) that is rotated 90° clockwise from the second turret initial position 16a. At the third bonding position 16c, the third bonding apparatus 18 performs bonding of the third optical component F13 on the display surface side.

The second rotary machine tool 16 is a position (the lower end portion in Fig. 5) which is rotated 90° clockwise from the third bonding position 16c as the bonding inspection position 16d. At the bonding inspection position 16d, the inspection device 19 inspects the workpiece (liquid crystal panel P) to which the film is bonded (inspection of whether the position of the optical component F1X is appropriate (whether the positional deviation is within the tolerance) or the like). When the position of the optical module F1X of the liquid crystal panel P is judged to be an incorrect workpiece, it is sent out of the system through the exclusion portion not shown in the drawing.

The second rotary machine tool 16 is a second turntable end position 16b at a position (left end of Fig. 5) that is rotated 90° clockwise from the bonding inspection position 16d. At the second turntable end position 16b, the carry-out operation is performed by the fourth transfer device 21.

The fourth conveying device 21 holds the liquid crystal panel P and is freely transported in the vertical direction and the horizontal direction. The fourth conveying device 21 conveys, for example, the liquid crystal panel P held by the adsorption to the second initial position 7a of the second sub-transporting device 7, and releases the adsorption at the second initial position 7a, and the liquid crystal panel P is removed. It is transmitted to the second sub-conveying device 7.

The fifth conveying device 22 holds the liquid crystal panel P and is freely transported in the vertical direction and the horizontal direction. The fifth conveying device 22 is, for example, a liquid crystal panel P held by adsorption The end point 5b of the main conveying device 5 is conveyed, and the suction action is released at the end point 5b, and the liquid crystal panel P is transferred to the main conveying device 5. The bonding step of the film bonding system 1 is completed via the above.

Hereinafter, the first bonding apparatus 13 will be described in detail with reference to FIG.

Fig. 6 is a side view showing the main part of the first bonding apparatus 13. In addition, the second bonding apparatus 15 and the third bonding apparatus 18 have the same configuration, and detailed description thereof will be omitted. In Fig. 6, for the sake of convenience of illustration, the main parts of the first bonding apparatus 13 are described as being divided into upper and lower layers. In Fig. 6, the upper layer shows the case where the bonding head is driven, and the lower layer is displayed on the backlight side of the optical display member, and the remaining portion of the layer is cut.

The first bonding apparatus 13 performs the first layer sheet F1m of the bonding layer sheet F5 cut into a specific size in the first optical component layer F1 with respect to the upper surface of the liquid crystal panel P conveyed to the first bonding position 11c. fit. Thereafter, the first bonding apparatus 13 cuts out the first optical component F11 corresponding to the size of the display area from the first layer F1m.

The first bonding apparatus 13 includes a layer sheet conveying device 31 that winds the first optical component layer F1 from the roll drum R1 that has taken up the first optical component layer F1 and transports it along the longitudinal direction thereof. The first optical component layer F1 and the bonding head 32 hold the first layer F1m of the bonding layer sheet F5 cut from the first optical component layer F1 while the layer conveying device 31 holds the bonding head 32 a layer F1m is attached to the upper side of the liquid crystal panel P conveyed to the first bonding position 11c; and a second cutting device 50 is used to face the opposite portion of the display area P4 of the first layer F1m and the opposite portion The remaining portion of the outer side is cut, and the first optical component F11 corresponding to the size of the display region P4 is cut out from the first layer sheet F1m.

The layer sheet conveying device 31 conveys the bonding layer sheet F5 with the separation layer sheet F3a as a carrier. The sheet conveying device 31 has a winding portion 31a that holds the roll drum R1 in which the strip-shaped first optical component layer F1 is wound, and winds the first optical component layer F1 along the longitudinal direction thereof; Cut off 31b, the first optical component layer F1 taken up from the roll drum R1 is half-cut; the blade 31c (peeling part) is wound around the first optical component layer F1 after the half cut, so that The bonding layer sheet F5 is separated from the separation layer sheet F3a, and the winding portion 31d holds the separation roller R2 of the separation layer sheet F3a which is wound by the blade edge 31c.

Further, although omitted from the drawings, the layer sheet conveying device 31 has a plurality of guide rollers that wind the first optical module layer F1 along a specific conveyance path. The first optical component layer F1 has a width wider than the display region P4 of the liquid crystal panel P (corresponding to the short side length of the display region P4 in the present embodiment) in the horizontal direction (ply width direction) perpendicular to the conveyance direction. width.

The winding portion 31a located at the beginning of the layer conveying device 31 and the winding portion 31d at the end of the layer conveying device 31 are, for example, driven in synchronization with each other. Thereby, the unwinding portion 31a continuously winds up the first optical component layer F1 in the conveyance direction, and the winding portion 31d winds up the separation layer sheet F3a that has passed through the blade edge 31c. In the layer conveyance device 31, the upstream side in the conveyance direction of the first optical module layer F1 (separation layer sheet F3a) is referred to as the layer conveyance upstream side, and the downstream side in the conveyance direction is referred to as the sheet conveyance downstream side.

The first cutting device 31b is disposed above the first optical component layer F1. For example, the first cutting device 31b is provided with a circular cutting blade. Further, the cutting blade is configured to be movable in the direction of the leading side in one direction by a driving mechanism not shown. Further, the length of the guiding portion is longer than the length of the first optical component layer F1 in the width direction. The guide portion is rotationally driven in a plane parallel to the first optical module layer F1 in accordance with the cutting direction adjusted by the control device 25.

Each time the first cutting device 31b winds up the first optical component layer F1 in the longitudinal direction perpendicular to the layer width direction up to the length of the display region P4 (corresponding to the long side length of the display region P4 in the present embodiment) When the length is longer, one part of the thickness direction of the first optical component layer F1 is cut across the entire width in the width direction of the layer (half-cut).

The first cutting device 31b transmits the tension in the first optical component layer F1, and does not cause the first optical component layer F1 (the separation layer F3a) to be broken (the separation layer F3a having a specific thickness remains). The front and rear positions of the cutting blade are adjusted, and the half cut is applied to the vicinity of 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 first optical component layer F1, the optical module body F1a and the surface protective film F4a are cut in the thickness direction thereof to form a transverse line across the entire width of the first optical component layer F1 in the layer width direction. The first optical component layer F1 is divided into sections having a length corresponding to the long side of the display region P4 in the longitudinal direction by the transverse line. The partitions are each one of the plies (first ply F1m) of the ply F5.

The size or shape of the first layer sheet F1m can be arbitrarily set in accordance with the shape of the optical component or the optical axis setting direction in the optical component. In the present embodiment, the first optical component layer F1 is half-cut (beveled) in a direction crossing the longitudinal direction thereof, and a transverse line is formed at a predetermined interval from the first optical component layer F1 to obtain a first layer. Slice F1m.

In the present embodiment, the strip-shaped first optical component layer F1 forming the roll drum R1 is made of the optical component layer manufacturing apparatus 40. Hereinafter, the manufacturing apparatus 40 of the optical component layer will be described in detail with reference to FIGS. 7 to 10.

Fig. 7 is a side view showing a manufacturing apparatus 40 for manufacturing an optical component layer of the optical component layer FX. Further, the manufacturing apparatus 40 of the optical component layer constitutes a part of a production system for producing an optical display device.

The manufacturing apparatus 40 of the optical component layer has a winding-out portion 41a that holds a raw paper roll in which a strip-shaped optical component layer (hereinafter, referred to as a mother sheet F0) having a wider width than the first optical component layer F1 is wound. The cylinder R0 is rolled out along the longitudinal direction thereof; the inspection device 42 is oriented in the width direction of the mother sheet F0 The optical axis of the mother sheet F0 rolled out from the original paper roll R0 is inspected at a plurality of inspection positions; the take-up portion 41b holds the post-inspection roll R0A of the post-inspection layer F0A which is taken up by the inspection device 42; The portion 41c holds the post-inspection reel R0A and winds up the inspected layer sheet F0A in the longitudinal direction thereof; the cutter 45 is used to cut the plural layer F0A from the inspected layer sheet F0A which is unwound from the inspected reel R0A. The optical component layer FX; and the winding portion 41d winds up the optical component layer FX cut through the cutter 45 and holds the roll drum R1.

The base paper roll R0 has a wider width than the roll drum R1. For example, the width of the base paper roll R0 is about 1300 mm. The take-up reel R1 is one of a plurality of optical component layers FX cut by the mother sheet F0 wound from the original paper roll R0 by the take-up portion 41d. For example, it is a plurality of optical component layers FX cut out from a mother piece F0 having a width of about 1300 mm. Thereby, the width of the optical component layer FX is approximately 200 mm to 300 mm.

The inspection device 42 includes a light source 43 disposed above the mother sheet F0, and an analyzer 44 disposed below the mother sheet F0. The analyzer 44 is provided with a light receiving element (not shown in the drawings) that receives the light emitted from the light source 43 and transmitted through the mother sheet F0. In the inspection device 42, the optical axis of the mother sheet F0 is detected by detecting the intensity of light passing through the mother sheet F0 and the analyzer 44 by the light receiving element. The analyzer 44 is a structure that can move in the width direction of the mother sheet F0. The inspection device 42 moves the analyzer 44 in the width direction of the mother sheet F0, and checks the mother sheet F0 at a plurality of inspection positions in the width direction of the mother sheet F0 by the optical axis of the mother sheet F0 detected by the analyzer 44. The optical axis.

Further, the inspection device 42 is not limited to a configuration in which the analyzer 44 can be moved in the width direction of the mother sheet F0, and a configuration in which a plurality of analyzers are provided in the width direction of the mother sheet F0.

Fig. 8 is a plan view showing the main part of the manufacturing apparatus 40 of the optical component layer.

As shown in Fig. 8, a plurality of checkpoints CP are provided in the width direction of the mother piece F0. Analyzer 44 It can move along the arrangement direction of the plurality of checkpoints CP. Thereby, the direction of the optical axis in each of the inspection points CP is detected in the width direction of the mother piece F0.

The optical axis data of the mother piece F0 detected by the inspection device 42 is stored in the storage shown in FIG. 1 in association with the position of the mother piece F0 (the position in the longitudinal direction of the mother piece F0 and the position in the width direction). Device 24.

Figs. 9A to 9C are diagrams showing the in-plane distribution of the optical axis of the mother sheet F0. In addition, in the case of FIG. 9A to FIG. 9C, the case where the mother sheet F0 is conveyed from the unwinding portion 41a in the longitudinal direction of the mother sheet F0 is shown.

As shown in Figs. 9A to 9C, various distributions exist in the in-plane distribution of the optical axis of the mother piece F0. The optical axis of the mother piece F0 is roughly arranged along the longitudinal direction of the mother piece F0.

However, the distribution of the optical axis in the mother piece F0 shown in Fig. 9A is visible, and the optical axis direction slightly points to the lower right side with respect to the longitudinal direction of the mother piece F0. The distribution of the optical axis in the mother piece F0 shown in Fig. 9B is visible, and the optical axis direction pointing to the upper right direction and the lower right direction is alternately arranged in the width direction of the mother piece F0 with respect to the longitudinal direction of the mother piece F0. The inner surface of the mother piece F0 shown in Fig. 9C is distributed in the in-plane direction, and the optical axis direction is slightly shifted inward from the central portion of the mother piece F0 at both end portions in the width direction of the mother piece F0.

The reason why the optical axis in the plane of Fig. 9C is distributed is as follows. In the case where the polarizing film constituting the mother sheet F0 is, for example, a polyvinyl alcohol (PVA) film dyed with a dichroic dye and formed to extend toward one axis, When extending, there may be uneven thickness of the polyvinyl alcohol (PVA) film or uneven dyeing of the dichroic dye, etc., and the optical axis direction of the central portion of the mother piece F0 and the optical axis direction of the portion (edge portion) close to the end of the mother piece F0. There will be problems with deviations. Hereinafter, a mother sheet F0 having an in-plane distribution of the optical axis shown in FIG. 9C will be described as an example. The mother sheet F0 taken up from the base paper roll R0 passes through the inspection device 42 and is taken up as a post-inspection layer sheet F0A to the winding unit 41b.

Fig. 10 is a perspective view showing a state in which a plurality of optical component layers FX are cut after the inspection layer F0A is unrolled from the inspection roll R0A. Further, in Fig. 10, the illustration of the take-up reel R1 and the take-up portion 41d is omitted for the sake of convenience.

As shown in Fig. 10, a plurality of predetermined intervals are arranged in the width direction of the post-inspection layer F0A from above the post-inspection layer sheet F0A which is taken up by the unwinding roll ROA held by the unwinding portion 41c. A cutter 45. For example, a laser device or a cutting blade can be used as the cutter 45. A plurality of optical component layers FX are cut out from the post-inspection layer F0A which is unwound from the post-inspection reel R0A through a plurality of cutters 45.

In the case where the optical component layer FX is cut out from the post-inspection layer F0A, the optical axis deviation in the optical component layer FX is also generated in accordance with the optical axis deviation in the post-inspection layer F0A. In the present embodiment, the optical component layer FX is formed by cutting one of the widthwise directions of the layer F0A after inspection. That is, the inspected layer sheet F0A is divided in the width direction to form a plurality of optical component layers, and one optical component layer is used as the optical component layer FX. Therefore, the degree of deviation of the optical axis in the optical component layer FX is smaller than the degree of deviation of the optical axis in the layer F0A after inspection.

Incidentally, in the case where the optical component is cut out from the optical component layer FX, an optical axis deviation is generated in the optical component corresponding to the optical axis deviation. Therefore, the optical display device in which the optical component is mounted also has a deviation in the optical axis direction. In the case where the deviation is large, the optical display device is defective and cannot be used, and the number of optical display devices is reduced.

Here, in the present embodiment, the in-plane average optical axis direction of the optical component layer FX is calculated based on the distribution data in the optical axis plane of the optical component layer FX stored in advance in the storage device 24, and the optical component layer FX is cut. The direction of the break is such that the in-plane average optical axis direction of the optical component layer FX is at a target angle with respect to the cutting direction of the optical component layer FX.

Thereby, the optical axis deviation generated in the optical display device can be reduced.

Fig. 11 is an explanatory view showing a method of cutting the first layer sheet FXm from the optical component layer FX. In Fig. 11, a method of cutting the first ply F1m from the first optical component layer F1 of one example of the optical component layer FX is shown. However, the method of cutting the second ply F2m from the second optical component layer F2 and the method of cutting the third ply F3m from the third optical component layer F3 are also the same.

In the present embodiment, the first optical component layer F1 conveyed from the winding portion 31a is cut at an oblique angle by the first cutting device 31b. Thereby, a plurality of first layer sheets F1m are cut out. Although not shown in the drawings, the first layer sheet F1m has an in-plane distribution of the optical axis. When the first layer sheet F1m is cut out from the first optical component layer F1, the cutting direction of the first optical component layer F1 of the first cutting device is adjusted in accordance with the in-plane distribution of the optical axis of the first layer sheet F1m. Hereinafter, an example of a method of cutting the first layer sheet F1m from the first optical module layer F1 will be described.

12A and 12B are explanatory views of a method of adjusting the cutting direction of the first optical component layer F1. Fig. 12A is a view showing the in-plane distribution of the optical axis of the first optical component layer F1. Fig. 12B is a view showing a state in which the first cutting device 31b is adjusted after the cutting direction of the first optical module layer F1 is adjusted.

Further, in FIGS. 12A and 12B, the symbol L1 is a specific axis (the axis along the edge line (width edge) of the first optical component layer F1). The symbol L2 and the symbol L3 are axes parallel to each other with respect to the axis L1. The symbol V1 is an optical axis (hereinafter referred to as a first optical axis) having a maximum offset angle with the axis L1. The symbol V2 is an optical axis (hereinafter referred to as a second optical axis) having a minimum offset angle with the axis L2. The symbol V3 is an axis (hereinafter referred to as an average optical axis) which is an average of the angles between the first optical axis V1 and the second optical axis V2. θ _max is an angle between the specific axis L1 and the first optical axis V1 (hereinafter referred to as a maximum offset angle). θ _min is an angle between the specific axis L2 and the second optical axis V2 (hereinafter referred to as a minimum offset angle). θ _mid is an angle between the specific axis L3 and the average optical axis V3 (hereinafter referred to as an average offset angle).

Here, the "offset angle" in FIGS. 12A and 12B is a positive angle with respect to a specific axis in a clockwise direction, and a negative angle with respect to a specific axis in a counterclockwise direction.

In the present embodiment, the control device 25 detects the first optical axis V1 and the second optical axis V2 that intersect each other at the maximum angle in the plane of the first optical component layer F1, and calculates the first optical axis V1 and the second optical axis. The angle at which V2 is sandwiched is equally divided as the in-plane average optical axis (average optical axis V3) of the first optical component layer F1.

In the present embodiment, the angular difference between the maximum offset angle θ _max and the minimum offset angle θ _min is Δα. In this case, when the minimum offset angle θ _min is 0, as shown in Fig. 12A, the maximum offset angle θ _{max is} expressed as an angle (Δα). Further, the average offset angle θ _{mid is} expressed as an angle (Δα/2).

For example, in order to manufacture the first optical component F11 (refer to FIG. 13), the cutting is performed at a specific angle so that the in-plane average optical axis direction of the first optical component F11 is adapted to the direction of the target liquid crystal display device. For example, in the case of the absorption axis of the polarizing plate, the specific angle is 7°.

Here, a case where the axis L1 along the edge line of the first optical component layer F1 is taken as the target optical axis direction in the first optical component is considered. In this case, when the minimum offset angle θ _min is 0, since the second optical axis V2 and the axis L2 have the smallest offset angle, they are slightly aligned with the target optical axis direction in the first optical component. On the other hand, since the first optical axis V1 has the largest offset angle with the axis L1, it is significantly deviated from the target optical axis direction in the first optical component. The first optical axis V1 is offset from the target optical axis direction in the first optical component by an angle Δα.

On the other hand, in the present embodiment, the control device 25 is configured to be able to rotate the first cutting device 31b such that the in-plane average optical axis direction of the first optical component layer F1 is opposite to the cutting direction Vc of the first optical component layer F1. The structure at the target angle. In this embodiment, as shown in FIG. 12B, the first rotation The cutting device 31b adjusts the cutting direction of the first optical component layer F1 such that the axis (axis L4) formed with respect to the specific angle γ of the average optical axis V3 as the first optical component F11 is cut out from the first optical component layer F1. Time base.

For example, in the case where the cutting direction of the first cutting device 31b is set to a direction perpendicular to the axis L1 along the edge line of the first optical component layer F1 in the initial state, the first cutting device 31b is moved from the initial state position toward Turn the angle only in the clockwise direction (γ + △ α / 2). Thereby, the cutting direction Vc has an angle (γ+Δα/2) with respect to the cutting direction of the initial state.

In this way, the shaft L4 is a reference when the first optical component F11 is cut out from the first layer F1m. In other words, the direction perpendicular to the cutting direction Vc is the reference when the first optical component F11 is cut out from the first ply F1m. Further, the average optical axis V3 corresponds to the optical axis direction as the target in the first optical component F11.

In this case, the second optical axis V2 is only shifted by an angle (γ-Δα/2) with respect to the axis L4. On the other hand, the first optical axis V1 is shifted by only an angle (γ + Δα/2) with respect to the axis L4. That is, the second optical axis V2 is shifted by only an angle (-Δα/2) with respect to the target optical axis direction in the first optical component F11. On the other hand, the first optical axis V1 is shifted by only an angle (Δα/2) with respect to the target optical axis direction in the first optical component F11.

As described above, according to the present embodiment, since the average optical axis V3 corresponds to the target optical axis direction in the first optical component F11, compared with the case where the axis L1 along the edge line of the first optical component layer F1 is used as the target optical axis direction in the optical component. The offset angles of both the first optical axis V1 and the second optical axis V2 can be reduced to half (offset angle Δα → Δα/2).

Returning to Fig. 6, the blade 31c is located below the first optical component layer F1 which is conveyed slightly horizontally from the left side to the right side of Fig. 6, and extends at least across the entire width direction of the first optical component layer F1. Formed in width. The blade 31c is divided into the first optical component layer F1 after the half cut The acute angle is wound by sliding contact with the side of the layer F3a.

The blade 31c is such that the first optical component layer F1 is wound at its acute angle at its acute angle. When the first optical component layer F1 is folded back at an acute front end of the blade 31c, the separation layer F3a is peeled off from the bonding layer F5. At this time, the adhesive layer F2a of the bonding layer sheet F5 (the bonding surface with the liquid crystal panel P) faces downward. Immediately above the front end portion of the blade 31c is a separation layer peeling position 31e, and the arc-shaped holding surface 32a of the bonding head 32 comes into contact with the front end portion of the blade edge 31c from above, so that the surface protective film of the layer of the laminated layer sheet F5 is adhered F4a (the opposite side to the facing surface) is adhered to the holding surface 32a of the fitting head 32.

The bonding head 32 is parallel to the width direction of the layer, and has a convex arc-shaped holding surface 32a below. The holding surface 32a has a weaker adhesive force than the bonding surface (adhesive layer F2a) of the bonding layer sheet F5, for example, and the surface protective film F4a of the bonding layer sheet F5 can be repeatedly adhered and peeled off.

The bonding head 32 is attached to the blade 31c, and has an axis along the width direction of the layer as a center, is parallel to the longitudinal direction, and is inclined to move along the curved surface of the holding surface 32a. When the bonding layer sheet F5 is adhered and adhered, and the bonding layer sheet F5 which is adhered and adhered is bonded to the liquid crystal panel P, the tilting movement of the bonding head 32 is appropriately performed.

The bonding head 32 is attached to the blade at the curved end side of the holding surface 32a from above with the holding surface 32a facing downward and the curved end side of the holding surface 32a (the right side of FIG. 6) being the lower side. The front end portion of 31c is adhered to the front end portion of the bonding layer sheet F5 at the separation layer peeling position 31e to the holding surface 32a. Thereafter, the bonding layer sheet F5 is continuously unwound and the bonding head 32 is tilted and moved, whereby the layer of the bonding layer sheet F5 is entirely adhered to the holding surface 32a.

The bonding head 32 can perform a lifting operation of a specific distance above the separation layer peeling position 31e and the first bonding position 11c, and can be between the separation layer peeling position 31e and the first bonding position 11c. Move as appropriate. The bonding head 32 is coupled to the driving device, and can be driven during the lifting, the moving, and the tilting movement.

When the bonding layer sheet F5 is adhered to the holding surface 32a, the bonding head 32 is detached from the driving device 33, for example, after the end portion of the bonding layer sheet F5 is adhered to the holding surface 32a. From this state, the tilting movement is passively accompanied by the unwinding of the bonding layer sheet F5. When the bonding head 32 is tilted to move until the bonding layer F5 is entirely adhered to the holding surface 32a, the tilting movement is locked in the inclined state by, for example, engagement with the driving device 33, and in this state, the tilting movement is performed. Moves over a fitting position 11c.

When the bonding layer 32 is adhered to the liquid crystal panel P, the bonding head 32 is actively tilted by, for example, the driving device 33, and the bonding layer F5 is attached along the bending of the holding surface 32a. Attached to the upper side of the liquid crystal panel P to be surely bonded.

Below the end portion before the blade 31c, a first detecting camera 34 is provided which detects the edge portion of the layer of the bonding layer sheet F5 at the portion on the downstream side of the layer. The detection data of the first detection camera 34 is transmitted to the control device 25. When the first detecting camera 34 detects the downstream end of the bonding layer sheet F5, for example, the control device 25 temporarily stops the layer sheet conveying device 31, and thereafter lowers the bonding head 32 to fix the front end of the bonding layer sheet F5. The portion is adhered to the holding surface 32a.

When the first detecting camera 34 detects the downstream side end of the bonding layer sheet F5 and temporarily stops the layer sheet conveying device 31, the control device 25 performs the cutting of the bonding layer sheet F5 by the first cutting device 31b. That is, along the detection position of the first detection camera 34 (the optical axis extension position of the first detection camera 34) and the cutting position along the first cutting device 31b (the cutting blade of the first cutting device 31b is advanced and retracted) The distance of the layer transport route between the positions is equivalent to the length of the layer sheet (first layer sheet F1m) to which the layer sheet F5 is bonded.

The first cutting device 31b is movable along the layer transport path, and the distance between the detection position of the first detecting camera 34 and the cutting position between the cutting positions of the first cutting device 31b is changed by the movement. . The movement of the first cutting device 31b is controlled by the control device 25, and after the cutting of the bonded layer sheet F5 by, for example, the first cutting device 31b, a layer of the laminated layer sheet F5 is wound up (first In the case of the distance of the layer F1m), when there is a deviation between the cut end and the specific reference position, the deviation is corrected by the movement of the first cutting device 31b. Further, the cutting of the bonding layer sheet F5 having a different length may be performed by the movement of the first cutting device 31b.

The first detecting camera 34 can also detect the defect mark printed on the bonding layer F5. This defect mark is marked by inkjet or the like from the side of the surface protective film F4a when the defect roll is found in the first optical component layer F1 at the time of manufacture of the roll reel R1. The bonding layer sheet F5 on which the defect mark is detected does not adhere to the liquid crystal panel P after being adhered to the bonding head 32, but moves to a discarding position avoiding the first bonding position 11c, and is overlapped and attached to the waste layer. Pieces and so on. Further, when the defect mark is detected, a step of cutting the bonded layer sheet F5 with a minimum width and discarding it may be designed.

When the bonding layer sheet F5 moves from the separation layer peeling position 31e toward the first bonding position 11c, it adheres to the two corners of the bonding layer sheet F5 of the holding surface 32a (for example, the two corners of the proximal end portion of the front end portion) The respective units are photographed by a pair of second detecting cameras 35. In other words, the holding state on the holding surface 32a of the first layer sheet F1m is photographed by the pair of second detecting cameras 35. The detection data of each of the second detecting cameras 35 is transmitted to the control device 25. The control device 25 confirms, for example, the horizontal direction of the bonding layer sheet F5 of the bonding head 32 based on the photographic data of each of the second detecting cameras 35 (the moving direction of the bonding head 32 and its vertical direction, and the rotation direction of the center of the vertical axis). )position. In the case where the relative positions of the bonding head 32 and the bonding layer sheet F5 are different, the bonding head 32 performs position alignment by using the position of the bonding layer sheet F5 as a specific reference position.

At the first bonding position 11c of the first rotary machine tool 11, one of the position detection alignments for performing the horizontal alignment of the liquid crystal panel P on the first bonding position 11c is performed. At the second bonding position 11d of the first rotary machine tool 11, a pair of fourth detection cameras 37 for performing positional alignment in the horizontal direction on the second bonding position 11d of the same liquid crystal panel P are provided. Each of the third detecting cameras 36 captures, for example, the two corner portions on the left side in the first drawing of the glass substrate (first substrate P1) of the liquid crystal panel P. Each of the fourth detecting cameras 37 captures, for example, the two corner portions on the left side in the first drawing of the glass substrate of the liquid crystal panel P.

At the third bonding position 16c of the second rotary machine tool 16, a pair of fifth detection cameras 38 for performing positional alignment in the horizontal direction on the third bonding position 16c of the liquid crystal panel P are provided. Each of the fifth detecting cameras 38 captures, for example, the two corner portions on the left side in the first drawing of the glass substrate of the liquid crystal panel P. The detection data of each of the detection cameras (the first detection camera 34 to the fifth detection camera 38) is transmitted to the control device 25. Alternatively, a sensor may be used instead of each of the detecting cameras (the first detecting camera 34 to the fifth detecting camera 38).

A position calibration table 39 (position calibration platform) on which the liquid crystal panel P is placed and whose positional alignment in the horizontal direction can be performed is provided on each of the rotary machine tools (the first rotary machine tool 11 and the second rotary machine tool 16). The position calibration table 39 is driven and controlled by the control device 25 based on the detection data of each of the detection cameras (the first detection camera 34 to the fifth detection camera 38). Thereby, the liquid crystal panel P with respect to the first rotary machine tool 11 and the second rotary machine tool 16 (the respective bonding positions (the first bonding position 11c, the second bonding position 11d, and the third bonding position 16c) can be performed. Position calibration.

The laminated layer F5 which has been aligned with the position of the bonding head 32 is bonded to the liquid crystal panel P, whereby the bonding deviation of the layer FXm is suppressed, and the optical axis direction of the optical component F1X of the liquid crystal panel P can be improved. Accuracy, improve the color and contrast of optical display devices.

Fig. 13 is an explanatory view showing a method of bonding the first layer sheet F1m with respect to the liquid crystal panel P.

Further, in Fig. 13, the symbol Lc is the cut edge of the first layer sheet F1m. Further, the symbol Lp is one side of the optical display member. Further, the symbol Lp1 is one of the cutting lines (one side of the rectangular cutting line) when the first optical unit F11 is cut out from the first layer sheet F1m along the outer peripheral edge of the display region P4 of the first layer sheet F1m.

The drive unit 33 can cause the mating head 32 to move relative to the position calibration stage 39. The driving device 33 transmits the control signal of the control device 25 to move the bonding head 32 and the position calibration table 39 so that the cutting edge Lc of the first layer F1m and the liquid crystal panel are cut by the first cutting device 31b. One side of P is consistent or parallel. For example, the driving device 33 is disposed in the first direction parallel to the mounting surface 39a of the liquid crystal panel P in the position alignment table 39, parallel to the mounting surface 39a and perpendicular to the first direction, and the mounting surface 39a. The aligning head 32 and the position aligning table 39 are relatively moved in the θ direction in which the third direction of the normal direction is rotated in the direction of the axis in the third direction. In the present embodiment, the drive unit 33 does not move the position calibration table 39, and only the movement of the bonding head 32 is performed.

In addition, the form of the relative movement of the drive unit 33 is not limited thereto. For example, by moving the position calibration table 39 or moving both the bonding head 32 and the position calibration table 39 without moving the bonding head 32, the bonding head 32 of the present invention and the position calibration table 39 can be used for relative movement. form.

In the present embodiment, the axis Lp1 (L4) formed at a specific angle γ with respect to the average optical axis V3 is used as a reference when the first optical module F11 is cut out from the first layer F1m.

Further, on the downstream side in the transport direction of the first cutting device 31b, a second cutting device 50 for cutting the opposite portion of the display region P4 of the first layer F1m and the outside of the opposite portion is provided. The rest of the.

As shown in Fig. 6, the second cutting device 50 is attached to the backlight side of the liquid crystal panel P, and detects a peripheral edge of the display region P4 by a detecting portion such as the camera 151, and cuts the first edge along the outer periphery of the display region P4. Layer F1m.

In the same manner, the second cutting device 50 detects the outer periphery of the display region P4 by the detecting portion such as a camera on the display surface side of the liquid crystal panel P, and cuts the third layer sheet F3m along the outer periphery of the display region P4.

A frame portion G having a specific width is provided on the outer side of the display region P4 for providing a sealant or the like for bonding the first substrate P1 and the second substrate P2, and a second inside the width of the frame portion G The cutting device 50 performs laser cutting.

In this manner, the second cutting device 50 cuts the opposing portion of the display region P4 of the first layer sheet F1m and the remaining portion of the outside of the facing portion, and cuts the size corresponding to the display region P4 from the first layer sheet F1m. First optical component F11.

The second bonding device and the third bonding device perform the same operation. That is, the second ply F2m is cut out (beveled) from the second optical component layer F2, and after the second ply F2m is bonded to the liquid crystal panel P, the opposite portion of the display region P4 of the second ply F2m is The remaining portion outside the opposite portion is cut, and the second optical component F12 corresponding to the size of the display region P4 is cut out from the second layer F2m. Further, the third layer sheet F3m is cut out (beveled) from the third optical component layer F3, and after the third layer sheet F3m is bonded to the liquid crystal panel P, the opposite portion of the display region P4 of the third layer sheet F3m is formed. The remaining portion outside the opposite portion is cut, and the third optical component F13 corresponding to the size of the display region P4 is cut out from the third layer sheet F3m.

According to the above, an optical display device in which the liquid crystal panel P and the optical module F1X superposed on the liquid crystal panel P are bonded can be obtained.

(Production method of optical display device)

The production method of the optical display device of the present embodiment has the following steps: the first step is to use a strip-shaped optical component layer FX having a width wider than the display region P4 of the liquid crystal panel P from the roll reel R1 and the separation layer F3a. In the second step, the in-plane distribution data of the optical component layer FX is obtained, and the in-plane average optical axis direction of the optical component layer FX is calculated according to the in-plane distribution data of the optical component layer FX, and the optical adjustment is performed. The cutting direction of the component layer FX is such that the in-plane average optical axis direction of the optical component layer FX is at a target angle with respect to the cutting direction of the optical component layer FX; the third step is to adjust the cutting direction to allow separation The layer F3a remains in the state of the optical component layer FX, and the optical component layer FX is cut into a larger size than the display region P4 to obtain the layer FXm; and in the fourth step, the layer FXm is peeled off from the separation layer F3a; In the fifth step, the layer FXm is attached and held by the arc-shaped holding surface 32a of the bonding head 32, and the layer FXm held by the holding surface 32a is attached to the liquid crystal panel P while being held The bending of the face 32a causes the fitting head 32 to tilt The sixth step is to move the bonding head 32 relative to the position calibration table 39 such that the cut edge Lc of the cut layer FXm is aligned or parallel with one side Lp of the liquid crystal panel P, and the tilt is made Moving the bonding layer FXm to maintain and fit, and driving the bonding head 32; and the seventh step of cutting off the opposite portion of the display region P4 of the layer FXm and the remaining portion outside the facing portion, the layer The sheet FXm cuts out the optical component F1X corresponding to the size of the display area P4.

Hereinafter, specific description will be given using FIG.

Figure 14 is a flow chart showing a method of producing an optical display device.

First, the first step is to roll out the strip-shaped first optical component layer F1 having a width wider than the display region P4 of the liquid crystal panel P from the roll drum R1 and the separation layer F3a (step S1 shown in Fig. 14). .

Next, in the second step, the control device 25 obtains the data distributed in the optical axis plane of the first optical component layer F1 stored in the storage device 24, and adjusts the cutting direction of the first optical component layer F1 (step shown in FIG. 14). S2).

Specifically, the in-plane average optical axis direction of the first optical component layer F1 is calculated from the in-plane distribution data of the optical axis of the first optical component layer F1. Next, the cutting direction of the first optical component layer F1 is adjusted such that the in-plane average optical axis direction of the first optical component layer F1 is at a target angle with respect to the cutting direction of the first optical component layer F1.

For example, by the control device 25, the in-plane average optical axis direction of the first optical component layer F1 is calculated according to the in-plane distribution data of the first optical component layer F1, and the first cutting device 31b is rotated to make the first optical The average optical axis direction in the plane of the component layer F1 is at a target angle with respect to the cutting direction Vc of the first optical component layer F1. In the present embodiment, as shown in Fig. 12B, the first cutting device 31b is rotated to adjust the cutting direction of the first optical module layer F1 so that the axis formed by the specific angle γ with respect to the average optical axis V3 (axis L4) As a reference when the first optical component F11 is cut out from the first optical component layer F1.

Here, the in-plane average optical axis direction of the first optical component layer F1 is calculated based on the optical axis distribution in the width direction of the first optical component layer F1 detected by the inspection device 42. In the case where the first optical component F11 is cut out from the first optical component layer F1, the optical axis data used for the calculation may also use the optical axis data of the portion cut by the first optical component F11. Further, the optical axis data for calculation can also be used, and the optical axis data on the upstream side is larger than the portion cut by the first optical component F11. Since the optical axis direction does not change much in the longitudinal direction of the first optical component layer F1, as long as the optical axis direction of any one of the longitudinal directions of the first optical component layer F1 is calculated, the optical axis direction can be used as the first optical component. The optical axis direction of any position in the longitudinal direction of the layer F1. In this case, the average optical axis direction in the width direction of the first optical component layer F1 is calculated from the complex position in the longitudinal direction of the first optical component layer F1, and the calculated position at each position is flat. The optical axis direction obtained by averaging the average optical axis direction by the complex position can be used as the in-plane average optical axis direction of the first optical component layer F1.

Next, in the third step, the first optical component layer F1 is cut into a larger size than the display region P4 by the residual separation layer F3a in the adjusted cutting direction to obtain the first layer F1m (Fig. 14). Step S3) shown.

Next, in the fourth step, the first layer sheet F1m is peeled off from the separation layer sheet F3a (step S4 shown in Fig. 14).

Next, in the fifth step, the first layer sheet F1m is attached and held by the arc-shaped holding surface 32a of the bonding head 32, and the first layer sheet F1m held by the holding surface 32a is bonded to the liquid crystal. The panel P is moved along the holding surface 32a so that the bonding head 32 is tilted (step S5 shown in Fig. 14).

Next, in the sixth step, the bonding head 32 and the position aligning table 39 are relatively moved so that the cut edge Lc of the cut first layer F1m and the one side Lp of the liquid crystal panel P are aligned or parallel. Further, in order to allow the tilting movement to hold and bond the first layer sheet F1m, the bonding head 32 is driven (step S6 shown in Fig. 14).

For example, the relative movement of the bonding head 32 and the position calibration table 39 does not move the position calibration table 39, and only the movement of the bonding head 32 is performed. Specifically, the bonding head 32 is disposed in a first direction parallel to the mounting surface 39a of the liquid crystal panel P in the position alignment table 39, parallel to the mounting surface 39a, and perpendicular to the first direction. The third direction of the normal direction of the surface 39a is relatively moved in the θ direction of the axis rotation about the third direction.

Thereafter, in the seventh step, the opposite portion of the display region P4 of the first layer F1m and the remaining portion outside the opposite portion are cut, and the size corresponding to the size of the display region P4 is cut out from the first layer F1m. An optical unit F11 (window type cut) (step S7 shown in Fig. 14).

The same steps are also performed for the second layer sheet F2m and the third layer sheet F3m, and the second optical unit F12 and the third optical unit F13 (window type cut) corresponding to the size of the display area P4 are cut out.

Through the above steps, an optical display device formed by bonding the liquid crystal panel P and the optical component F1X overlapping the liquid crystal panel P can be obtained.

In the film bonding system 1 of the present embodiment, according to the production method of the optical display device, the first optical component layer F1 is cut according to the distribution data in the optical axis plane of the first optical component layer F1 stored in advance in the storage device 24. Broken direction. In this adjustment, the cutting direction of the first optical component layer F1 is adjusted such that the average optical axis direction in the plane of the first optical component layer F1 is at a target angle with respect to the cutting direction of the first optical component layer F1. Next, the first layer sheet F1m is cut out from the first optical component layer F1 in the above-described adjusted cutting direction. Next, the bonding head 32 is moved relative to the position aligning table 39 such that the cut edge Lc of the cut first layer sheet F1m is aligned or parallel with one side Lp of the liquid crystal panel P. Next, the opposite portion of the display region P4 of the first layer F1m and the remaining portion outside the opposite portion are cut, and the first optical component F11 corresponding to the size of the display region P4 is cut out from the first layer F1m, that is, A so-called window cut is performed. Similarly, the second optical component F12 and the third optical component F13 corresponding to the size of the display region P4 are also cut out from the second layer F2m and the third layer F3m, respectively. Thereby, an optical display device formed by bonding the liquid crystal panel P and the optical module F1X overlapping the liquid crystal panel P is obtained. Therefore, the optical axis deviation generated in the optical display device can be reduced.

According to this configuration, the strip-shaped optical component layer FX corresponding to the width of the display region P4 is cut into a specific length as the layer FXm, and the layer FXm is held in an arc shape by the tilting movement of the bonding head 32. At the holding surface 32a, the layer sheet FXm is bonded to the liquid crystal panel P by the tilting movement of the same bonding head 32, and then the window type cutting is performed to suppress the dimensional deviation or the fitting deviation of the layer sheet FXm, thereby reducing the display. The frame portion G around the area P4 is used to achieve enlargement of the display area and miniaturization of the machine. purpose.

Moreover, the continuous bonding of the layer sheets FXm can be facilitated, and the production efficiency of the optical display device can be improved.

Moreover, the layer sheet FXm can be smoothly held by the oblique movement of the arc-shaped holding surface 32a, and the layer sheet FXm can be surely bonded to the liquid crystal panel P by the tilting movement of the same arc-shaped holding surface 32a.

Further, in the film bonding system 1, the blade 31c is directed downward from the bonding surface of the liquid crystal panel P, and the layer FXm is peeled off from the separation layer F3a, and the bonding head 32 is attached. The joint surface is attached to the upper surface of the opposite side and held at the holding surface 32a, and the bonding surface is directed downward, and is moved between the peeling position and the bonding position so that the adhesive layer F2a side When the bonding surface is conveyed downward toward the optical component layer FX, scratches on the bonding surface of the optical component layer FX, adhesion of foreign matter, and the like can be suppressed, and occurrence of poor bonding can be suppressed.

Further, the film bonding system 1 includes a rotary machine tool (the first rotary machine tool 11 and the second rotary machine tool 16) for moving the liquid crystal panel P to the loading position (the initial position of each turntable (the first turntable initial) Position 11a and second turntable initial position 16a)), the bonding position (each bonding position (first bonding position 11c, second bonding position 11d, and third bonding position 16c)) and carrying-out position (each turntable) End position (first turntable end position 11b and second turntable end position 16b)) so that the liquid crystal panel P can efficiently switch the conveyance direction, and the rotary machine tool (the first rotary machine tool 11 and the second rotary machine tool 16) ) It can also be used as part of the production line to suppress the length of the production line and increase the freedom of installation of the system.

Further, the present invention is not limited to the above embodiment, and for example, the relative positional alignment of the liquid crystal panel P and the bonding layer sheet F5 may be performed through one of the bonding head 32 or the position alignment table 39.

Next, the configuration in the above embodiment is an example of the present invention, and does not deviate from the gist of the invention. Within the scope, various changes are possible, including component structure or construction, shape, size, quantity and configuration.

(Second embodiment)

Hereinafter, another embodiment of the present invention will be described with reference to the drawings. In the present embodiment, a film bonding system which is a part of a production system of an optical display device will be described.

Fig. 16 is a schematic side view showing the film bonding system 1A of the second embodiment. In the sixteenth embodiment, the same components as those in the first embodiment are denoted by the same reference numerals, and the detailed description thereof will be omitted. In addition, the contents of the second embodiment to the fourth embodiment of the first embodiment are not described in the same manner in the present embodiment.

In the present embodiment, the first optical module F11, the second optical component F12, and the third optical component F13 are mainly composed of a first layer F1m, a second layer F2m, and a third layer F3m (hereinafter, collectively referred to as The layer FXm.) cuts off the formation of the remaining portion of the outside of the display area.

Fig. 17 is a plan view (top view) of the film bonding system 1A. Hereinafter, the film bonding system 1A will be described with reference to Figs. 16 and 17 . In addition, the arrow F in the figure shows the conveyance direction of the liquid crystal panel P. In the following description, the upstream side of the liquid crystal panel P in the transport direction is referred to as the panel transport upstream side, and the downstream side of the liquid crystal panel P in the transport direction is referred to as the panel transport downstream side.

The film bonding system 1A uses the specific position of the main conveying device 5 as the starting point 5a and the ending point 5b of the bonding step. The film bonding system 1A is provided with a first sub-conveying device 6 and a second sub-conveying device 7 extending from the main conveying device 5 in the right-angle direction from the starting point 5a; from the starting point 5a toward the first initial position 6a of the first sub-conveying device 6 a first transfer device 8 that transports the liquid crystal panel P, a cleaning device 9 that is disposed on the first sub-transport device 6, and a first rotary machine tool 11 that is disposed on the downstream side of the panel transport of the first sub-conveying device 6; The first end position 6b of the sub-conveying device 6 is toward the first of the first rotary machine tool 11 a second transfer device 12 that transports the liquid crystal panel P at the turntable initial position 11a; and a first bonding device 13 and a second bonding device 15, which are disposed around the first rotary machine tool 11, the film peeling device 14, and the first cutting device 51.

Further, the film bonding system 1A includes: a second rotary machine tool 16 provided on the downstream side of the panel transfer of the first rotary machine tool 11; and a first rotary table end position 11b of the first rotary machine tool 11 toward the second rotary machine tool a third transfer device 17 that transports the liquid crystal panel P at the second turntable initial position 16a of 16; a third bonding device 18 and a second cutting device 52 that are disposed around the second rotary machine tool 16; and is disposed on the second rotary machine tool The panel of 16 transports the second sub-conveying device 7 on the downstream side; the fourth conveying device that transports the liquid crystal panel P from the second turret end position 16b of the second rotary machine tool 16 toward the second initial position 7a of the second sub-conveying device 7 21; and a fifth conveying device 22 that conveys the liquid crystal panel P from the second end position 7b of the second sub-conveying device 7 toward the end point 5b of the main conveying device 5.

The film bonding system 1A uses the driven main conveying device 5, each auxiliary conveying device (the second auxiliary conveying device 6 and the third auxiliary conveying device 7), and each rotary machine tool (the first rotary machine tool 11 and the second The production line formed by the rotary machine tool 16) transports the liquid crystal panel P, and sequentially applies specific processing to the liquid crystal panel P. The liquid crystal panel P is transported on the production line with its front/reverse surfaces horizontal.

The liquid crystal panel P is, for example, in the main transport device 5, and transports the short side of the display region P4 in the transport direction; the sub transport devices (the first sub transport device 6 and the second sub transport) that are perpendicular to the main transport device 5 In the device 7), the long side of the display region P4 is transported in the transport direction; in each of the rotary machine tools (the first rotary machine tool 11 and the second rotary machine tool 16), the long side of the display region P4 is oriented. The rotary machine tools (the first rotary machine tool 11 and the second rotary machine tool 16) are transported in the radial direction. The symbol 5c in the figure corresponds to the liquid crystal panel P, and displays the rack transported along the main transport device 5.

The layer (corresponding to the optical component F1X) of the bonding layer sheet F5 of a specific length is cut out from the strip-shaped optical component layer FX with respect to the front/rear surface of the liquid crystal panel P. Each part of the film bonding system 1A is integrally controlled by a control device 25 as an electronic control unit.

The first conveying device 8 can hold the liquid crystal panel P and freely transport it in the vertical direction and the horizontal direction.

The first transfer device 8 directly transports the liquid crystal panel P held by the adsorption to the first initial position 6a (the left end portion of FIG. 17) of the first sub-transport device 6 in a horizontal state, at which position The adsorption is released, and the liquid crystal panel P is transferred to the first sub-conveying device 6.

The cleaning device 9 is, for example, washed by water, and is brushed and washed on the front/rear surface of the liquid crystal panel P, and then the liquid on the front/rear surface of the liquid crystal panel P is removed. Further, the cleaning device 9 may be dry-cleaned to perform static elimination and dust collection on the front/rear surfaces of the liquid crystal panel P.

The second transfer device 12 can hold the liquid crystal panel P and freely transport it in the vertical direction and the horizontal direction. The second transfer device 12 directly transports the liquid crystal panel P held by the adsorption to the first turntable initial position 11a of the first rotary machine tool 11 in a horizontal state, and at this position, the adsorption action is released, and the liquid crystal is discharged. The panel P is delivered to the first rotary machine tool 11.

The first rotary table machine 11 is a disk-shaped turntable having a rotary axis in the vertical direction, and is moved from the second transfer device 12 (the left end portion in the plan view of Fig. 17) as the first turntable initial position 11a toward Rotary drive in a clockwise direction. The first rotary machine tool 11 is a first bonding position 11c at a position (the upper end portion of Fig. 17) that is rotated 90° in the clockwise direction from the first turret initial position 11a. At the first bonding position 11c, the bonding of the first optical component F11 on the backlight side is performed by the first bonding apparatus 13.

The first layer F1m is a first optical larger than the display area of the liquid crystal panel P Layer of component layer F1. The first layer sheet F1m is bonded to one of the front/reverse sides of the liquid crystal panel P by the first bonding device 13 to form the first optical component bonding body PA1.

The first rotary machine tool 11 is a film peeling position 11e at a position (the upper right end portion of FIG. 17) that is rotated by 45° in the clockwise direction from the first bonding position 11c. At the film peeling position 11e, peeling of the surface protective film F4a of the first layer sheet F1m is performed by the film peeling device 14.

The first rotary machine tool 11 is a second bonding position 11d at a position (right end position in FIG. 17) that is rotated by 45° in the clockwise direction from the film peeling position 11e. At the second bonding position 11d, the second bonding apparatus 15 performs bonding of the second layer sheet F2m on the backlight side.

The second layer F2m is a layer of the second optical component layer F2 that is larger in size than the display area of the liquid crystal panel P. The second layer sheet F2m is bonded to the surface of the first layer F1m side of the first optical component bonding body PA1 by the second bonding device 15 to form the second optical component bonding body PA2.

The first rotary table machine 11 is a first turntable end position 11b at a position (the lower end portion in Fig. 17) that is rotated 90° clockwise from the second bonding position 11d.

The first turret end position 11b is a first cutting position at which the first layer F1m and the second layer F2m are cut by the first cutting device 51. The first cutting device 51 cuts off the remaining portion of the first layer sheet F1m and the second layer sheet F2m that are bonded to the liquid crystal panel P, respectively, on the outer side of the opposite portion of the display portion of the liquid crystal panel P. The first optical component F11 composed of the first optical component layer F1 and the second optical component F12 composed of the second optical component layer F2 are formed as optical components corresponding to the size of the display region of the liquid crystal panel P.

After the first layer F1m and the second layer F2m are attached to the liquid crystal panel P, the first optical component F11 and the second optical component F12 are not separated, so as to obtain a peripheral edge of the display region P4. The shape corresponds to the first optical component F11 and the second optical component F12. Also The cutting step of the first layer F1m and the second layer F2m is simplified.

The remaining portions of the first layer F1m and the second layer F2m are cut from the second optical component bonding body PA2 by the first cutting device 51 to form the first optical component F11 and the second optical component F12. The third optical component is bonded to the surface of one of the front/reverse sides of the liquid crystal panel P. The remaining portion cut from the first layer sheet FX1 and the second layer sheet F2m is peeled off from the liquid crystal panel P through a peeling device omitted in the drawings. The third optical component bonding body PA3 is attached to the first turntable end position 11b, and is carried out by the third transfer device 17.

The third transport device 17 can hold the liquid crystal panel P (the third optical component bonding body PA3) and can be freely transported in the vertical direction and the horizontal direction. The third transport device 17 transports the liquid crystal panel P held by the adsorption to the second turntable initial position 16a of the second rotary machine tool 16, and performs the front/reverse reverse of the liquid crystal panel P at the time of the conveyance. The adsorption is released at the second turntable initial position 16a, and the liquid crystal panel P is transferred to the second rotary machine tool 16.

The second rotary table machine 16 is a disk-shaped turntable having a rotary axis in the vertical direction, and is moved from the third transfer device 17 (the upper end portion in the plan view of Fig. 17) as the second turntable initial position 16a. The slewing drive is performed in the hour hand direction. The second rotary machine tool 16 is a third bonding position 16c at a position (the right end portion of FIG. 17) that is rotated 90° clockwise from the second turret initial position 16a. At the third bonding position 16c, the third bonding apparatus 18 performs bonding of the third layer sheet F3m on the display surface side.

The third layer sheet F3m is a layer of the third optical component layer F3 having a larger size than the display area of the liquid crystal panel P. The third layer sheet F3m is bonded to the other of the front/rear surfaces of the liquid crystal panel P by the third bonding device 18 (the first optical component F11 and the second optical component F12 of the third optical component bonding body PA3 are attached to each other). The opposite side of the face) to form the fourth optical component bonding body PA4.

The second rotary machine tool 16 is a second cutting position 16d at a position (the lower end portion in Fig. 17) that is rotated 90° clockwise from the third bonding position 16c. At the second cutting position 16d, the third layer piece F3m is cut by the second cutting device 52. The second cutting device 52 cuts the remaining portion of the outer side of the facing portion of the display region of the liquid crystal panel P from the third layer sheet F3m bonded to the liquid crystal panel P to form a display area corresponding to the liquid crystal panel P. Optical component (third optical component F13).

The remaining portion of the third layer sheet F3m is cut from the fourth optical component bonding body PA4 by the second cutting device 52, and the third optical component F13 is bonded to the other side of the front/rear surface of the liquid crystal panel P, and The first optical component F11 and the second optical component F12 are bonded to one side of the front/rear surface of the liquid crystal panel P to form a fifth optical component bonding body PA5. The remaining portion cut from the third layer sheet F3m is peeled off from the liquid crystal panel P through a peeling device omitted in the drawings.

Here, the first cutting device 51 and the second cutting device 52 are, for example, a carbon dioxide (CO ₂ ) laser cutting machine. The first cutting device 51 and the second cutting device 52 cut the layer sheet FXm bonded to the liquid crystal panel P without interruption along the outer periphery of the display region P4. The first cutting device 51 and the second cutting device 52 are connected to the same laser output device 53. The first cutting device 51, the second cutting device 52, and the laser output device 53 constitute a cutting portion, and the remaining portion disposed outside the opposing portion of the display region P4 is cut off from the layer FXm to form a corresponding portion. The optical component FX is displayed in the size of the display area P4. Since the laser output required for cutting each of the layers (the first layer F1m, the second layer F2m, and the third layer F3m) is not large, in the present embodiment, the output of the laser output device 53 is high. The laser light is divided into two and supplied to the first cutting device 51 and the second cutting device 52.

The second rotary machine tool 16 is a second turntable end position 16b at a position (left end portion of Fig. 17) that is rotated 90° clockwise from the second cutting position 16d. At the end of the second turntable At the position 16b, the fourth optical device bonding body PA5 is carried out by the fourth conveying device 21.

The fourth transfer device 21 can hold the liquid crystal panel P (the fifth optical component bonding body PA5) and can be freely transported in the vertical direction and the horizontal direction. The fourth conveying device 21 conveys, for example, the liquid crystal panel P held by the adsorption to the second initial position 7a of the second sub-transporting device 7, and releases the adsorption at the second initial position 7a, and the liquid crystal panel P is removed. It is transmitted to the second sub-conveying device 7.

The fifth transport device 22 can hold the liquid crystal panel P (the fifth optical component bonding body PA5) and can be freely transported in the vertical direction and the horizontal direction. The fifth transport device 22 transports the liquid crystal panel P held by the adsorption to the end point 5b of the main transport device 5, and releases the suction at the end point 5b to transfer the liquid crystal panel P to the main transport device 5.

The conveyance route of the liquid crystal panel P (the fifth optical component bonding body PA5) after the second turntable end position 16b is provided with a bonding inspection position omitted in the drawing, and at the bonding inspection position, the inspection device (pattern) (Omit omitted) Check the workpiece (liquid crystal panel P) to which the film is bonded (check whether the position of the optical component F1X is appropriate (whether the positional deviation is within the tolerance) or the like). When the position of the optical module F1X of the liquid crystal panel P is judged to be an incorrect workpiece, it is sent out of the system through the exclusion portion not shown in the drawing.

The bonding step of the film bonding system 1A is completed via the above.

Hereinafter, the first bonding apparatus 13 will be described in detail with reference to FIG. 18. In addition, the second bonding apparatus 15 and the third bonding apparatus 18 have the same configuration, and detailed description thereof will be omitted.

The first bonding apparatus 13 is a layer (the first layer) of the bonding layer sheet F5 cut into a specific size in the first optical component layer F1 with respect to the upper surface of the liquid crystal panel P conveyed to the first bonding position 11c. Sheet F1m) is attached.

The first bonding apparatus 13 has a layer sheet conveying device 31 that takes the first light from the coil The roll drum R1 of the component layer F1 winds up the first optical component layer F1, and conveys the first optical component layer F1 along the longitudinal direction thereof; and the bonding head 32 to keep the layer conveying device 31 from the first A layer (first layer sheet F1m) of the bonding layer sheet F5 cut by the optical component layer F1 is bonded to the upper surface of the liquid crystal panel P conveyed to the first bonding position 11c.

The layer sheet conveying device 31 conveys the bonding layer sheet F5 by using the separation layer sheet F3a as a carrier, and has a winding portion 31a for holding the roll drum R1 in which the strip-shaped first optical unit layer F1 is wound, and The first optical component layer F1 is wound up along the longitudinal direction thereof; the cutting portion 131b applies a half cut to the first optical component layer F1 taken up from the roll drum R1; and the blade 31c (peeling portion) is applied The first optical component layer F1 after the half cut is wound at an acute angle to separate the bonding layer sheet F5 from the separation layer sheet F3a; and the winding portion 31d is kept separated by the separation layer sheet F3a which is separately wound after passing through the blade edge 31c. Separation roller R2.

Further, although omitted from the drawings, the layer sheet conveying device 31 has a plurality of guide rollers that wind the first optical module layer F1 along a specific conveyance path. The first optical component layer F1 has a width in a horizontal direction (ply width direction) perpendicular to the conveyance direction, and has a width corresponding to the display region P4 of the liquid crystal panel P (the length of either the long side and the short side of the display region P4 is equivalent to In the present embodiment, the length of the long side of the display region P4 is wider.

The winding portion 31a located at the beginning of the layer conveying device 31 and the winding portion 31d at the end of the layer conveying device 31 are, for example, driven in synchronization with each other. Thereby, the unwinding portion 31a winds up the first optical component layer F1 in the conveyance direction, and the winding portion 31d winds up the separation layer sheet F3a that has passed through the blade 31c. In the layer conveyance device 31, the upstream side in the conveyance direction of the first optical module layer F1 (separation layer sheet F3a) is referred to as the layer conveyance upstream side, and the downstream side in the conveyance direction is referred to as the sheet conveyance downstream side.

Each time the cutting portion 131b is first in the longitudinal direction perpendicular to the width direction of the layer sheet When the optical component layer F1 is wound up to the length of the display region P4 (the length of the other side of the display region P4 and the other side of the short side, which corresponds to the length of the short side of the display region P4 in the present embodiment), along the layer The sheet width direction cuts a portion of the thickness direction of the first optical component layer F1 across the entire width (half cut). Thereby, the layer (first layer sheet F1m) of the bonding layer sheet F5 which is larger than the display region P4 of the liquid crystal panel P is cut out from the first optical component layer F1.

The cutting portion 131b transmits the tension in the first optical component layer F1, and does not cause the first optical component layer F1 (the separation layer F3a) to be broken (the separation layer F3a having a specific thickness remains). The front and rear positions of the broken blade are subjected to the half cut, which is deep to the vicinity of 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 first optical component layer F1 after the half cutting, the optical module body F1a and the surface protective film F4a are cut in the thickness direction thereof to form a transverse line across the entire width of the first optical component layer F1 in the layer width direction. The first optical component layer F1 is divided into sections having a length corresponding to the short side of the display region P4 in the longitudinal direction by the transverse line. The partitions are each one of the plies (first ply F1m) of the ply F5.

The blade 31c is located below the first optical component layer F1 which is conveyed slightly horizontally from the left side to the right side of Fig. 18, and is formed to extend at least across the entire width of the first optical component layer F1 in the layer width direction. The blade 31c is wound in such a manner that it is wound in a sliding contact with the side of the separation layer F3a of the first optical component layer F1 after the half cutting.

The blade 31c is such that the first optical component layer F1 is wound at its acute angle at its acute angle. When the first optical component layer F1 is folded back at an acute front end of the blade 31c, the separation layer F3a is peeled off from the first layer F1m. At this time, the adhesive layer F2a of the first layer sheet F1m (the bonding surface with the liquid crystal panel P) faces downward. The separation layer peeling position 31e is directly above the front end of the blade 31c, and the fitting head The arc-shaped holding surface 32a of 32 is brought into contact with the front end portion of the blade edge 31c from above, so that the surface protective film F4a of the first layer sheet F1m (the surface opposite to the opposite side of the bonding surface) is adhered to the holding of the bonding head 32. Face 32a.

The bonding head 32 is a holding surface 32a having a convex arc shape in parallel with the width direction of the layer. The holding surface 32a has a weaker adhesive force than the bonding surface (adhesive layer F2a) of the bonding layer F5, for example, and the surface protective film F4a of the first layer F1m can be repeatedly adhered and peeled off.

The bonding head 32 is centered on the axis of the blade 31c in the width direction of the layer, parallel to the longitudinal direction, and is inclined to move along the curved surface of the holding surface 32a. When the first layer sheet F1m is adhered and adhered to the liquid crystal panel P, the tilting movement of the bonding head 32 is appropriately performed.

The bonding head 32 is such that the holding surface 32a faces downward, and the curved end side of the holding surface 32a (the right side of FIG. 18) is in the lower side, and the curved end side of the holding surface 32a is attached to the blade 31c from above. At the front end portion, the front end portion of the first ply F1m of the separation layer peeling position 31e is adhered to the holding surface 32a. Thereafter, the first layer sheet F1m is taken up and the bonding head 32 is tilted to move, thereby bonding the entire first layer sheet F1m to the holding surface 32a.

The bonding head 32 can perform a lifting operation of a specific distance above the separation layer peeling position 31e and the first bonding position 11c, and can appropriately move between the separation layer peeling position 31e and the first bonding position 11c. The bonding head 32 is coupled to the driving device, and can be driven during the lifting, the moving, and the tilting movement.

When the first layer sheet F1m is adhered to the holding surface 32a, the bonding head 32 is detached from the driving device 33, for example, after the end portion of the first layer sheet F1m is adhered to the holding surface 32a. From this state, the tilting movement is passively accompanied by the unwinding of the first layer sheet F1m. When the bonding head 32 is tilted until the first layer F1m is entirely adhered to the holding surface 32a, by the inclined state For example, it is engaged with the driving device 33 or the like to lock the tilting movement, and moves to the upper side of the first bonding position 11c in this state.

When the first layer F1m which is adhered and adhered to the liquid crystal panel P is attached, the bonding head 32 actively moves obliquely by, for example, the driving device 33, and the first layer F1m is attached along the bending of the holding surface 32a. Attached to the upper side of the liquid crystal panel P to be surely bonded.

Below the front end portion of the blade 31c, a first detecting camera 34 is provided which detects the front end portion on the downstream side of the layer transporting of the bonding layer sheet F5 at the portion. The detection data of the first detection camera 34 is transmitted to the control device 25. When the first detecting camera 34 detects the downstream end of the bonding layer sheet F5, for example, the control device 25 temporarily stops the layer sheet conveying device 31, and thereafter lowers the bonding head 32 to fix the front end of the bonding layer sheet F5. The portion is adhered to the holding surface 32a.

When the first detecting camera 34 detects the downstream side end of the bonding layer sheet F5 and temporarily stops the layer sheet conveying device 31, the control device 25 performs the cutting of the bonding layer sheet F5 by the cutting portion 131b. That is, the detection position along the first detection camera 34 (the optical axis extension position of the first detection camera 34) and the cutting position along the cutting portion 131b (the cutting edge position of the cutting blade of the cutting portion 131b) The distance of the layer transport route corresponds to the length of the layer sheet (first layer sheet F1m) to which the layer sheet F5 is bonded.

The first cutting device 31b is movable along the layer transport path, and the distance between the detection position of the first detecting camera 34 and the cutting position between the cutting positions of the cutting portion 131b is changed by the movement. The movement of the cutting portion 131b is controlled by the transmission control device 25, and after the cutting layer sheet F5 is cut by, for example, the cutting portion 131b, the layer sheet (the first layer sheet F1m) of one bonding layer sheet F5 is wound up. In the case of a distance, when there is a deviation between the cut end and the specific reference position, the deviation is corrected by the movement of the cut portion 131b. Further, the cutting of the bonding layer sheet F5 having a different length may be performed by the movement of the cutting portion 131b.

The first detecting camera 34 can also detect the defect mark printed on the bonding layer F5. This defect mark is marked by the ink jet or the like from the side of the surface protective film F4a when the defect roll is found in the first optical component layer F1 at the time of manufacture of the roll reel R1. The bonding layer sheet F5 (the first layer sheet F1m including the defect) on which the defect mark is detected does not adhere to the liquid crystal panel P after being adhered to the bonding head 32, but moves to avoid the first bonding position 11c. The discarded position (discarded position), overlapped to the waste layer and the like. Further, when the defect mark is detected, the step of cutting off the defective portion including the bonding layer sheet F5 with a minimum width may be designed.

In addition, the defect of the optical component layer FX is, for example, a portion where the solid matter is composed of a foreign matter composed of at least one of a liquid and a gas, or a portion where the surface of the optical component layer FX has irregularities or scratches due to the optical portion. The part of the component layer FX skew or material deviation, etc., which causes bright spots.

When the bonding head 32 moves from the separation layer peeling position 31e toward the first bonding position 11c, it is adhered and held at both corners of the first layer sheet F1m of the holding surface 32a (for example, at the corners of the proximal end portion of the front end portion) Each of the cameras is photographed by a pair of second detecting cameras 35. The detection data of each of the second detecting cameras 35 is transmitted to the control device 25. The control device 25 confirms, for example, the horizontal direction of the first layer sheet F1m with respect to the bonding head 32 based on the photographic data of each of the second detecting cameras 35 (the moving direction of the bonding head 32 and its vertical direction and the direction of rotation of the vertical axis center). )position. In the case where the relative positions of the bonding head 32 and the first layer sheet F1m are different, the bonding head 32 performs position alignment by using the position of the first layer sheet F1m as a specific reference position.

At the first bonding position 11c of the first rotary machine tool 11, one of the position detection alignments for performing the horizontal alignment of the liquid crystal panel P on the first bonding position 11c is performed. At the second bonding position 11d of the first rotary machine tool 11, the same liquid crystal surface is provided. One of the positional alignments in the horizontal direction on the second bonding position 11d of the board P is directed to the fourth detecting camera 37. Each of the third detecting cameras 36 captures, for example, the two corner portions on the left side in the seventeenth image of the glass substrate (first substrate P1) of the liquid crystal panel P. Each of the fourth detecting cameras 37 captures, for example, the two corner portions on the left side in Fig. 17 of the glass substrate of the liquid crystal panel P.

At the third bonding position 16c of the second rotary machine tool 16, a pair of fifth detection cameras 38 for performing positional alignment in the horizontal direction on the third bonding position 16c of the liquid crystal panel P are provided. Each of the fifth detecting cameras 38 captures, for example, the two corner portions on the left side in Fig. 17 of the glass substrate of the liquid crystal panel P. The detection data of each of the detection cameras (the first detection camera 34 to the fifth detection camera 38) is transmitted to the control device 25. Alternatively, a sensor may be used instead of each of the detecting cameras (the first detecting camera 34 to the fifth detecting camera 38).

A position alignment table 39 on which the liquid crystal panel P is placed and whose positional alignment in the horizontal direction can be performed is provided on each of the rotary machine tools (the first rotary machine tool 11 and the second rotary machine tool 16). The position calibration table 39 is driven and controlled by the control device 25 based on the detection data of each of the detection cameras (the first detection camera 34 to the fifth detection camera 38). Thereby, the liquid crystal panel P with respect to the first rotary machine tool 11 and the second rotary machine tool 16 (the respective bonding positions (the first bonding position 11c, the second bonding position 11d, and the third bonding position 16c) can be performed. Position calibration.

The laminated layer F5 (layer sheet FXm) which has been aligned with the position of the bonding head 32 is bonded to the liquid crystal panel P, whereby the bonding deviation of the optical component F1X is suppressed, and the optical component F1X of the liquid crystal panel P can be improved. The accuracy of the optical axis direction improves the color and contrast of the optical display device.

Here, the polarizing film constituting the optical component layer FX is formed, for example, by a polyvinyl alcohol (PVA) film dyed with a dichroic dye toward one axis. At this time, since the thickness of the polyvinyl alcohol (PVA) film is uneven or the dyeing of the dichroic dye is uneven, it is easy to cause the optical component layer. The deviation of the optical axis direction occurs in the FX plane.

In this embodiment, the control device 25 determines the relative optical component layer FX based on the inspection data distributed in the optical axis plane in each portion of the optical component layer FX stored in the storage device 24 (refer to FIG. 16). The bonding position of the liquid crystal panel P (relative bonding position). Next, each of the bonding apparatuses (the first bonding apparatus 13, the second bonding apparatus 15, and the third bonding apparatus 18) is fitted to the bonding position, and the liquid crystal panel is formed on the layer FXm cut out from the optical component layer FX. Position calibration of P, and the liquid crystal panel P is attached to the layer FXm.

The method of determining the bonding position (relative bonding position) of the layer sheet FXm of the liquid crystal panel P is as follows.

First, as shown in FIG. 19A, a plurality of checkpoints CP in the width direction of the optical component layer FX are set, and the optical axis direction of the optical component layer FX is detected at each checkpoint CP. The time when the optical axis is detected is the time when the roll drum R1 is manufactured, or may be the period before the half of the optical component layer FX is unwound from the roll drum R1. The data in the optical axis direction of the optical component layer FX is stored in the storage device 24 in association with the position of the optical component layer FX (the position in the longitudinal direction and the width direction of the optical component layer FX) (refer to Fig. 16).

The control device 25 acquires the optical axis data (inspection data of the in-plane distribution of the optical axis) of each of the inspection points CP from the storage device 24 to detect the optical component layer FX (which is divided by the transverse line CL) of the portion in which the slice FXm is cut out. The average optical axis direction of the area).

For example, as shown in FIG. 19B, the angle (offset angle) between the optical axis direction and the edge line EL of the optical component layer FX is detected at the checkpoint CP each time, and the maximum angle (maximum offset angle) among the offset angles When θ _max and the minimum angle (minimum offset angle) are taken as θ _min , the average value θ _mid (=(θ _max +θ _min )/2) of the maximum offset angle θ _max and the minimum offset angle θ _min is detected. As the average offset angle. Next, the average offset angle θ _mid direction of the edge line EL with respect to the optical component layer FX is detected as the average optical axis direction of the optical component layer FX.

Further, the offset angle is calculated, for example, by a counterclockwise direction with respect to the edge line EL of the optical component layer FX being a positive angle and a clockwise direction being a negative angle.

Next, the bonding position (relative bonding position) of the layer sheet FXm with respect to the liquid crystal panel P is determined according to the average optical axis direction of the optical component layer FX detected by the above method, so that the display area P4 of the liquid crystal panel P is long. The edge or short side is at the target angle. For example, in the case where the optical axis direction of the optical component F1X is set to be 90° with respect to the long side or the short side of the display region P4 according to the design specification, the average optical axis direction of the optical component layer FX is longer than the display region P4. The layer FXm is bonded to the liquid crystal panel P with the side or the short side at 90°.

The cutting device (the first cutting device 51 and the second cutting device 52) detects the outer peripheral edge of the display region P4 of the liquid crystal panel P by a detecting unit such as a camera, and cuts the patch continuously along the outer periphery of the display region P4. The layer FXm of the liquid crystal panel P is joined. The outer periphery of the display region P4 is detected by photographing the end portion of the liquid crystal panel P, the position alignment mark provided on the liquid crystal panel P, or the outermost edge of the black matrix provided in the display region P4. A frame portion G (refer to FIG. 3) having a specific width is provided on the outer side of the display region P4, and is used to provide a sealant or the like for bonding the first and second substrates of the liquid crystal panel P to the frame portion G. The cutting piece FXm is cut (cut line: WCL) by the cutting device (the first cutting device 51 and the second cutting device 52) in the width.

As described above, the film bonding system 1A of the present embodiment includes the bonding apparatus (the first bonding apparatus 13, the second bonding apparatus 15 and the third bonding apparatus 18), and the width is higher than that of the liquid crystal panel P. The strip-shaped optical component layer FX having a longer length on either side of the long side and the short side of the display area P4 is unwound from the roll reel R1, and is longer than the other side of the longer side and the shorter side of the display area P4. Optical group After the layer FX is cut to form the layer sheet FXm, the layer sheet FXm is bonded to the liquid crystal panel P as an optical component bonding body; and the cutting device (the first cutting device 51 and the second cutting device 52), The remaining portion disposed outside the opposite portion of the display region P4 is cut from the layer FXm bonded to the liquid crystal panel P to form an optical component F1X corresponding to the size of the display region P4. Therefore, it is possible to design the optical unit F1X to correspond to the display area P4 with better precision, and to reduce the frame portion G outside the display area P4 (refer to FIG. 3), thereby achieving the purpose of expanding the display area and miniaturizing the device.

Moreover, the film bonding system 1A has the control device 25, and determines the relative bonding position of the liquid crystal panel P and the layer sheet FXm based on the inspection data of the optical axis direction of the optical component layer FX. The bonding head 32 bonds the layer sheet FXm held by the holding surface 32a to the liquid crystal panel P in accordance with the relative bonding position determined by the control device 25. Therefore, even when there is a deviation in the optical axis direction in the FX surface of the optical component layer, the relative bonding position of the layer FXm and the liquid crystal panel P can be appropriately adjusted in accordance with the deviation of the optical axis direction. Thereby, the optical axis direction accuracy of the optical component F1X with respect to the liquid crystal panel P can be improved, and the color degree and contrast of the optical display device can be improved.

Further, in the film bonding system 1A, the bonding apparatus (the first bonding apparatus 13, the second bonding apparatus 15, and the third bonding apparatus 18) has a winding portion 31a for taking the optical component layer FX from the roll The roller R1 is unwound together with the separation layer sheet F3a; the cutting portion 131b is such that the separation layer sheet F3a remains in the optical module layer FX, and the optical component layer FX is cut to form the layer sheet FXm; the blade edge 31c is The layer sheet FXm is peeled off from the separation layer sheet F3a, and the bonding head 32 is attached to the holding surface 32a by attaching the layer sheet FXm, and the layer sheet FXm held on the holding surface 32a is bonded to the liquid crystal panel P. Therefore, the continuous bonding of the layer sheets FXm is facilitated, and the production efficiency of the optical display device can be improved. Further, a retaining surface 32a having an arc shape is used as the bonding head 32. Therefore, the layer FXm can be smoothly held by the oblique movement of the arc-shaped holding surface 32a, and the tilting movement of the same arc-shaped holding surface 32a can be performed. The layer sheet FXm is surely attached to the liquid crystal panel P.

Further, in the film bonding system 1A, the blade 31c is directed downward from the bonding surface of the liquid crystal panel P, and the optical module F1X is peeled off from the separation layer F3a, and the bonding head 32 is attached to the bonding surface and the opposing side. The side surface is attached to the holding surface 32a, and the bonding surface is directed downward, and is moved between the peeling position and the bonding position. Therefore, the optical component layer FX is conveyed downward by the bonding surface of the adhesive layer F2a side, and the scratch of the bonding surface of the optical component layer FX, the adhesion of a foreign material, etc. can be suppressed, and the occurrence of a bonding defect can be suppressed.

Further, the film bonding system 1A includes a rotary machine tool (the first rotary machine tool 11 and the second rotary machine tool 16) for moving the liquid crystal panel P to the loading position (the initial position of each turntable (the first turntable initial position 11a) And the second turntable initial position 16a)) and the bonding position (each bonding position (first bonding position 11c, second bonding position 11d, and third bonding position 16c) and the carrying-out position (each turntable end position (first) a turntable end position 11b and a second turntable end position 16b)). Therefore, the liquid crystal panel P can efficiently switch the transport direction, and the rotary machine tool (the first rotary machine tool 11 and the second rotary machine tool 16) can also function as One part of the production line can suppress the length of the production line, which can increase the freedom of installation of the system.

Further, in the film bonding system 1A, the bonding apparatus (the first bonding apparatus 13, the second bonding apparatus 15, and the third bonding apparatus 18) has a detecting unit that detects a defect mark printed on the optical component layer FX (No. Upon detecting the camera 34), the portion where the defect mark of the optical component layer FX is detected is held by the bonding head 32 and transported to the discarded position (discarded position). Therefore, it is possible to provide a production system of an optical display device which improves the yield ratio of an optical display device and which is excellent in productivity.

Further, in the film bonding system 1A, the first cutting device 51 and the second cutting device 52 are laser cutting machines, and the first cutting device 51 and the second cutting device 52 are connected to the same laser output device 53. The laser output from the laser output device 53 is supplied to the first cutting device 51 and the first Second cutting device 52. Therefore, compared with the case where the first cutting device 51 and the second cutting device 52 are each connected to the respective laser output devices, the purpose of miniaturizing the production system of the optical display device can be achieved.

(Third embodiment)

Fig. 20 is a schematic structural view showing a film bonding system 2 of the third embodiment.

The present embodiment differs from the second embodiment in that the transport direction of the first optical component layer F1, the transport direction of the second optical component layer F2, and the transport direction of the third optical component layer F3 are parallel to each other. Therefore, in the embodiment, the same components as those in the second embodiment are denoted by the same reference numerals, and the detailed description thereof will be omitted.

In addition, in FIG. 20, the rotary machine tool (the first rotary machine tool 11 and the second rotary machine tool 16) and the bonding device disposed on the peripheral portion thereof (the first bonding device 13 and the second bonding device 15) are shown. Schematic structure with the third bonding device 18). In Fig. 20, the main conveying device 5, the sub conveying device (the first sub conveying device 6 and the second sub conveying device 7), the film peeling device 14, and the like shown in Fig. 17 are omitted. In Fig. 20, the arrows indicated by the first optical component layer F1, the second optical component layer F2, and the third optical component layer F3 show the optical component layers (the first optical component layer F1 and the second optical component layer F2). The average optical axis direction of the third optical component layer F3), and reference numeral 140, shows the discarded position (discarded position) in which the bonded laminated sheet containing the defect is discarded.

In the film bonding system 1A of the second embodiment shown in Fig. 17, two bonding devices (the first bonding device 13 and the second bonding device 15) having the same configuration are provided on the first rotary machine tool. 11 positions on the circumference at an angle of 90°. Therefore, the conveyance directions of the layer conveyance apparatuses provided with the respective bonding apparatuses (the first bonding apparatus 13 and the second bonding apparatus 15) are perpendicular to each other, and the long layer sheet conveying production line is formed in both directions.

On the other hand, in the film bonding system 2 of the embodiment shown in Fig. 20, the first sticker The conveying direction of the layer conveying device of the joining device 13 and the conveying direction of the layer conveying device of the second bonding device 15 are parallel to the conveying direction of the layer conveying device of the third bonding device 18. Therefore, the conveying direction of the layer conveying apparatus including the respective bonding apparatuses (the first bonding apparatus 13, the second bonding apparatus 15 and the third bonding apparatus 18) is parallel to each other, and only a long layer is formed in one direction. The film is transported to the production line.

For example, in the example of Fig. 20, the first optical component layer F1 is transported in the joining direction of the center of rotation of the vertical first rotary machine tool 11 and the first bonding position 11c. The first layer sheet F1 m cut by the cutting portion 131 b is conveyed to the liquid crystal panel P at the first bonding position 11 c by the bonding head 32 in a direction perpendicular to the conveying direction of the first optical module layer F1. The side of the side of the positive/negative side.

The second optical component layer F2 is transported in a direction in which the center of rotation of the first rotary table machine 11 and the second bonding position 11e are coupled. The second layer sheet F2 m cut by the cutting portion 131b is conveyed by the bonding head 32 in a direction parallel to the direction of the second optical component layer F2, and bonded to the first optical component at the second bonding position 11e. The surface of the first layer sheet F1m side of the bonded body PA1 is bonded.

The third optical component layer F3 is conveyed in a joining direction of the center of rotation of the parallel second rotary machine tool 16 and the third bonding position 16c. The third layer piece F3 m cut by the cutting portion 131b is conveyed to the liquid crystal panel at the third bonding position 16c by the bonding head 32 in the direction parallel to the conveying direction of the third optical component layer F3. The other side of P.

In the film bonding system 2 of the present embodiment, each of the opticals transported by the layer transfer device 31 of each of the bonding devices (the first bonding device 13, the second bonding device 15, and the third bonding device 18) The conveying directions of the component layers FX are parallel to each other. Therefore, the purpose of miniaturizing the production system of the optical display device can be achieved as compared with the case where the transport direction of each optical component layer FX is set separately.

(Fourth embodiment)

Fig. 21 is a schematic view of a bonding apparatus applied to the film bonding system of the fourth embodiment.

Fig. 21(a) is a schematic view showing a state in which the layer sheet FXm is held by the bonding head 60, and Fig. 21(b) is a view showing a state in which the layer sheet FXm is bonded to the liquid crystal panel P.

The present embodiment differs from the second embodiment in that the bonding head 32 having the arc-shaped holding surface 32a used in the bonding apparatus of the second embodiment is used in the bonding apparatus of the present embodiment. A bonding head 60 having a planar holding surface 60a. Therefore, the structure of the bonding head 60 is mainly described here, and the same components as those of the second embodiment are denoted by the same reference numerals, and detailed description thereof will be omitted.

The bonding apparatus of the present embodiment includes a bonding head 60, a bonding roller 62, a guide bar 61 that supports the bonding head 60 and the bonding roller 62, and a state in which the guiding rod 61 is tilted with respect to the liquid crystal panel P. Horizontally moving drive (not shown). Although not shown in the drawings, the unwinding portion, the cutting portion, and the blade (peeling portion) which are the same as those shown in Fig. 18 are provided in the bonding apparatus of the present embodiment.

The bonding head 60 has a planar holding surface 60a that holds the layer sheet FXm peeled off from the separation layer sheet. The holding surface 60a is inclined by the guide rod 61 and inclined with respect to the liquid crystal panel P. One end of the layer FXm protrudes outside the holding surface 60a to be positioned to be adsorbed to the holding surface 60a. Since the adsorption force of the layer sheet FXm is weak, the layer sheet FXm can smoothly move in the horizontal direction on the holding surface 60a while being held by the holding surface 60a.

The bonding roller 62 is disposed on the side surface of the bonding head 60, and the liquid crystal panel P is attached thereto and adheres to the layer FXm protruding from the holding surface 60a of the bonding head 60. In this state, when the guide rod 61 is moved in the horizontal direction by a driving device (not shown), the bonding head 60 and the bonding roller 62 are adhered to the liquid crystal panel P in a state where one end portion of the layer FXm is adhered to the liquid crystal panel P. The horizontal movement is performed from one end side of the layer FXm toward the other end side. Thereby, the layer sheet FXm is gradually attached from the one end side by the bonding roller 62. To the liquid crystal panel P.

The bonding head 60 is held by the layer FXm of the holding surface 60a, and is aligned by the moving direction of the bonding head in the horizontal direction, the vertical direction thereof, and the rotation direction. The bonding position (relative bonding position) of the layer FXm and the liquid crystal panel P is performed by the control device 25 (refer to Fig. 16) based on the inspection data in the optical axis direction of the optical module layer FX as in the second embodiment. Decide. The bonding head 60 is bonded to the liquid crystal panel P by the layer sheet FXm held by the holding surface 60a in accordance with the relative bonding position determined by the control device 25.

Therefore, in the present embodiment, it is possible to provide a production system of an optical display device which is intended to display a frame portion around the reduced area, and to achieve an enlargement of the display area and miniaturization of the device.

(first variant)

In the above embodiment, a carbon dioxide (CO ₂ ) laser cutting machine is used as an example of the cutting device (the first cutting device 51 and the second cutting device 52), but the cutting device (the first cutting device) The 51 and the second cutting device 52) are not limited thereto. Other cutting portions such as a cutting blade may be used as the cutting device (the first cutting device 51 and the second cutting device 52).

For example, as shown in FIG. 22, the three sides of the outer periphery of the first substrate P1 are along the three sides of the corresponding second substrate P2, and the remaining side of the outer periphery is the corresponding second substrate. When one of the sides of P2 extends outward, the size of the second substrate P2 is substantially the same as the size of the display area P4. Therefore, as long as the cutting blade moves along the outer periphery of the second substrate P2, the third layer F3m joined to the second substrate P2 can be formed into the third optical component F13 corresponding to the size of the display region P4.

In this case, the remaining portion of the liquid crystal panel P hardly adheres to the surface of the liquid crystal panel P, and the third optical component F13 and the remaining portion of the periphery thereof are roughly bonded only by the adhesive force of the adhesive layer F2a. Therefore, the remaining portion of the third layer sheet F3m is peeled off from the liquid crystal panel P. The device can also be simply configured to clamp the end of the remaining portion and pull out, and the device has a simple structure. Further, in the above embodiment, the remaining portions of the plies (the first ply F1m and the second ply Fm) and the remaining portions of the third ply F3m are peeled off from the liquid crystal panel P in different steps. However, in the present embodiment, the recovery of the remaining portion of the third layer sheet F3m is extremely easy, and therefore the remaining portions of the layer sheets (the first layer sheet F1m and the second layer sheet F2m) are made from the liquid crystal panel P. In the case of peeling and recycling, the remaining portion of the third layer sheet F3m may be collectively peeled off from the liquid crystal panel P. In this case, since the peeling means of the remaining portion is not required to be provided at two places, the production system of the optical display device can be miniaturized.

(Second variant)

In the above-described embodiment, a method of determining the in-plane average optical axis direction of the optical module layer FX is described with respect to the method of determining the bonding position (relative bonding position) of the layer sheet FXm of the liquid crystal panel P. In the above embodiment, in the case where the average deviation angle θ _max of the in-plane of the optical component layer FX and the average value θ _{mid of the} minimum offset angle θ _min are taken as the average offset angle, the edge line of the relative optical component layer FX is detected. The direction in which the average offset angle θ _mid is sandwiched is the in-plane average optical axis direction of the optical component layer FX. However, the method of detecting the in-plane average optical axis direction of the optical component layer FX is not limited to this.

For example, one or a plurality of checkpoints CP are selected from a plurality of checkpoints CP (refer to FIG. 19A) set in the width direction of the optical component layer FX, and the optical axis direction and the optical are detected for each of the selected checkpoints CP. The angle (offset angle) of the edge line EL of the component layer FX. Then, an average value of the offset angles of the selected one or a plurality of checkpoints CP in the optical axis direction is detected. As the average offset angle, the edge line EL of the optical component layer FX and the average offset angle can also be detected. The direction of the clip is the average optical axis direction of the optical component layer FX.

Hereinabove, a suitable embodiment of the present invention has been described with reference to the attached drawings. For example, of course, the examples of the present invention are not limited thereto. The various shapes and combinations of the structural components 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 present invention, and may be appropriately combined.

1‧‧‧Film bonding system

5‧‧‧Main conveying equipment

5a‧‧‧ starting point

5b‧‧‧end point

6‧‧‧First delivery equipment

6a‧‧‧First initial position

6b‧‧‧first end position

7‧‧‧Second secondary conveyor

7a‧‧‧ second initial position

7b‧‧‧second end position

8‧‧‧First transport device

9‧‧‧cleaning device

11‧‧‧First rotary machine tool

11a‧‧‧ Initial position of the first turntable

11b‧‧‧First turntable end position

11c‧‧‧First fit position

11d‧‧‧Second fitting position

11e‧‧‧film stripping position

12‧‧‧Second transport device

13‧‧‧First bonding device

14‧‧‧film stripping device

15‧‧‧Second laminating device

16‧‧‧Second rotary machine tool

16a‧‧‧Second turntable initial position

16b‧‧‧second turntable end position

16c‧‧‧ third fit position

16d‧‧‧Finished inspection position

17‧‧‧ Third transport device

18‧‧‧ Third bonding device

19‧‧‧Checking device

21‧‧‧fourth transport device

22‧‧‧ fifth transport device

24‧‧‧Storage device

25‧‧‧Control device

31‧‧‧Ply conveying device

31c‧‧‧ Blade

32‧‧‧Fitting head

33‧‧‧ drive

F‧‧‧Transfer direction

F1‧‧‧First optical component layer

F2‧‧‧Second optical component layer

F3‧‧‧ third optical component layer

P‧‧‧ LCD panel

R1‧‧‧ Roller

R2‧‧‧Separation roller

Claims (27)

A production system for an optical display device, which is a production system for bonding an optical component to an optical display component to form an optical display device, comprising: a pedestal supporting the optical display component; and a winding portion for widthing the optical display a strip-shaped optical component layer having a wider display area of the component is unwound from the roll drum and the separation layer; the control device obtains the in-plane distribution data of the optical component layer according to the optical axis of the optical component layer Internally distributing data, calculating an in-plane average optical axis direction of the optical component layer, and adjusting a cutting direction of the optical component layer such that an in-plane average optical axis direction of the optical component layer is opposite to a cutting direction of the optical component layer a first cutting device is configured to cut the optical component layer into a display region in a state in which the separation layer is left in the optical component layer in a cutting direction adjusted by the control device. a larger size to obtain a ply; the peeling portion is to peel the ply from the separating ply; the bonding head is attached to the ply and held at the arc-shaped holding surface, and Laminating the layer held on the holding surface to the optical display assembly and tilting along the bending of the holding surface; and driving the device to move the bonding head relative to the pedestal such that the first cutting The cutting edge of the layer after the device is cut is aligned or parallel with one side of the optical display member, and the bonding head is driven to perform the tilting movement to maintain and adhere the layer; and the second cutting The breaking device cuts the opposite portion of the display region of the layer and the remaining portion of the opposite portion of the facing portion, and cuts an optical component corresponding to the size of the display region from the layer. The production system of an optical display device according to claim 1, wherein the control device The two optical axes intersecting at the maximum angle in the plane of the optical component layer are detected, and the axis of the angle division of the two optical axes is calculated as the in-plane average optical axis of the optical component layer. The production system of the optical display device according to claim 1, further comprising a photographing device for photographing the holding state of the layer on the holding surface, wherein the driving device makes the photographing result according to the photographing result of the photographing device The mating head is moved relative to the pedestal such that the cut edge of the ply is aligned or parallel with one of the sides of the optical display member. The production system for an optical display device according to claim 1, further comprising a storage device for storing data distributed in the optical axis of the optical component layer. The production system of an optical display device according to claim 1, further comprising an inspection device for inspecting an optical axis of the optical component layer at a plurality of inspection positions in a width direction of the optical component layer. The production system of an optical display device according to claim 5, wherein the inspection device has an analyzer movable along a width direction of the optical component layer; and the inspection device is such that the analyzer is along the optical component layer Moving in the width direction and detecting the optical axis of the optical component layer by the analyzer, the optical axis of the optical component layer is inspected at a plurality of inspection positions in the width direction of the optical component layer. A method of producing an optical display device, which is a method for producing an optical display device by bonding an optical component to an optical display device, having the following steps: a first step of widening a strip having a width wider than a display area of the optical display member The optical component layer is rolled out together with the separation layer sheet; in the second step, the optical axis in-plane distribution data of the optical component layer is obtained, and the optical is calculated according to the in-plane distribution data of the optical component layer. The direction of the average optical axis in the in-plane of the component layer, adjusting the cutting direction of the optical component layer such that the in-plane average optical axis direction of the optical component layer is opposite to the optical The cutting direction of the component layer is a target angle optical axis; the third step is to cut the optical component layer into a state in which the separation layer remains in the optical component layer, and the optical component layer is cut into The layer is larger than the display area to obtain a layer; the fourth step is to peel the layer from the separation layer; and the fifth step is to attach the layer to the arc of the bonding head. Holding the surface, and in order to adhere the layer held on the holding surface to the optical display assembly, the bonding head is tilted and moved along the bending of the holding surface; in the sixth step, the bonding head is The pedestal supporting the optical display member is relatively moved such that the cut edge of the cut layer is aligned or parallel with one side of the optical display member, and the layer is held and attached for the tilting movement. Driving the bonding head; and a seventh step of cutting off the opposite portion of the display area of the layer and the remaining portion outside the facing portion, and cutting the optical component corresponding to the size of the display area from the layer . The method for producing an optical display device according to claim 7, wherein the two optical axes intersecting at a maximum angle in the plane of the optical component layer are detected, and the angles of the two optical axes are equally divided. The axis acts as the in-plane average optical axis of the layer of optical components. A production system for an optical display device, which is a production system for bonding an optical component to an optical display component to form an optical display device, comprising: a bonding device that has a width longer than a short side of a display region of the optical display component A strip-shaped optical component layer having a longer length on either side is rolled out from the roll drum, and the optical component layer is cut to form a layer after forming a layer longer than the other side of the long side or the short side of the display area Bonding the layer to the optical display member; and cutting the device from the layer bonded to the optical display member to be disposed in the display area Cutting the remaining portion of the outer portion to form an optical component corresponding to the size of the display region; wherein the bonding device has a winding portion, the optical component layer being separated from the separation roller Rolling out; cutting the portion, leaving the separation layer in the state of the optical component layer, cutting the optical component layer to obtain the layer; and peeling off the layer from the separation layer And the bonding head is attached to the holding surface, and the layer held on the holding surface is bonded to the optical display member. The production system of the optical display device according to claim 9, further comprising a control device for determining a relative fit of the optical display member and the layer according to the inspection data of the optical axis direction of the optical component layer. a position; and the bonding head attaches the layer held on the holding surface to the optical display member according to the relative bonding position determined by the control device. The production system of an optical display device according to claim 10, wherein the bonding head is to be held on the layer of the holding surface by the horizontal direction of the bonding head moving direction and its vertical direction, and Position correction in the direction of rotation. The production system of an optical display device according to claim 9, wherein the bonding device further has a detecting portion for detecting a defect mark printed on the optical component layer, and detecting a defect mark of the optical component layer The part will remain in the fitting head and be transported to the disposal location. The production system for an optical display device according to claim 9, further comprising a turntable for moving the optical display member to the carry-in position, the carry-out position, and the bonding position of the layer to the optical display member. The production system of an optical display device according to claim 9, wherein the bonding head is attached to the layer and held at the arc-shaped holding surface, and is held in the layer of the holding surface. The sheet is attached to the optical display assembly and is tilted to move along the curvature of the retaining surface. A production system for an optical display device, which is a production system for bonding an optical component to an optical display component to form an optical display device, comprising: a first bonding device that has a width longer than a long side of a display region of the optical display component; a strip-shaped first optical component layer having a longer length on either side of the short side is unwound from the first roll drum, and the first optical component is longer than the length of the other side of the long side or the short side of the display area After the layer is cut to form the first layer sheet, the first layer sheet is bonded to the surface of one side of the front/back surface of the optical display member to form an optical component bonding body; the second bonding device is to have a width a strip-shaped second optical component layer having a longer length of either one of a long side and a short side of the display portion of the optical display member is unwound from the second roll drum and is on the other side of the long side or the shorter side of the display area After the second optical component layer is cut to form a second layer, the second layer is bonded to the first layer side of the optical component bonding body; and the first cutting device is Attached to the optical display member The first layer and the second layer are cut together and disposed on the outer portion of the opposite portion of the opposite portion of the display region, such that the first optical component composed of the first optical component layer and the second optical component layer Forming a second optical component formed as an optical component corresponding to the size of the display area; wherein the first bonding apparatus has: a first winding portion, the first optical component layer is from the first roll And being rolled out together with the first separation layer; the first cutting portion is a state in which the first separation layer remains in the first optical component layer And cutting the first optical component layer to obtain the first ply; the first peeling portion is peeling the first ply from the first separating ply; and the first bonding head is The first layer is attached and held at the first holding surface, and the first layer held on the first holding surface is attached to the side of the positive/negative side of the optical display member; The second bonding device has a second winding portion for winding the second optical component layer together with the second separation roller and the second separation layer; the second cutting portion is for the second And separating the second optical component layer to obtain the second layer; the second peeling portion is the second layer And peeling off the sheet; and the second bonding head is attached to the second holding surface, and the second layer held on the second holding surface is attached to the optical component The face of the first layer side of the fit is combined. The production system of the optical display device of claim 15, further comprising a control device for determining the optical display component and the first layer according to the inspection data of the optical axis direction of the first optical component layer a first relative bonding position, and determining a second relative bonding position of the optical component bonding body and the second layer according to the inspection data of the optical axis direction of the second optical component layer; the first bonding device The first bonding head attaches the first layer held on the first holding surface to the side of the positive/negative side of the optical display member according to the first relative bonding position determined by the control device And the second bonding head of the second bonding device is based on the second relative bonding determined by the control device Positioning, bonding the second layer held on the second holding surface to the surface of the first layer side of the optical component bonding body. The production system of the optical display device of claim 16, wherein the first bonding head of the first bonding device is held on the first layer of the first holding surface by the horizontal direction Positioning correction of the moving direction of the bonding head and its vertical direction and the direction of rotation; and the second bonding head of the second bonding device is held on the second layer of the second holding surface by the horizontal direction The position of the head is moved in the direction of its movement, its vertical direction, and the direction of rotation. The production system of the optical display device of claim 15, wherein the first bonding device further has a first detecting portion for detecting a defect mark printed on the first optical component layer, and detecting the first detecting portion a portion of the defect mark of an optical component layer is retained in the first bonding head and transported to the first disposal position; and the second bonding device further has a second feature for detecting a defect mark printed on the second optical component layer The detecting unit detects that the portion of the second optical component layer having the defect mark is held by the first bonding head and is transported to the second disposal position. The production system for an optical display device according to claim 15, further comprising a turntable for moving the optical display member to the carry-in position, the carry-out position, and the bonding position of the first layer to the optical display member (first bonding position) and a bonding position (second bonding position) of the second layer sheet to the optical component bonding body. The production system of the optical display device of claim 15, wherein the first bonding device further has a first layer conveying device, and the first roll of the first optical component layer is taken up Rolling the first optical component layer out and transporting the first light along its longitudinal direction The second bonding device further has a second layer conveying device for unwinding the second optical component layer from the second reel which is wound with the second optical component layer, and along the length thereof The second optical component layer is transported in the lateral direction; and the transport direction of the first optical component layer and the transport direction of the second optical component layer are parallel to each other. The production system of the optical display device according to claim 15, further comprising: a third bonding device, which has a width wider than a length of one of a long side and a short side of the display area of the optical display unit; The strip-shaped third optical component layer is unwound from the third roll, and the third optical component layer is cut to form a third ply longer than the other of the long side or the short side of the display area. Thereafter, the third layer sheet is attached to the other side of the front/back surface of the optical display member; and the second cutting device is disposed on the display from the third layer sheet attached to the optical display member The remaining portion of the outer portion of the opposite portion of the region is cut to form an optical component corresponding to the size of the display region; wherein the third bonding device has a third unwinding portion from which the third optical component layer is The third roll is rolled out together with the third separation layer; the third cutting portion is configured to leave the third separation layer in the third optical component layer, and the third optical component layer is cut Obtaining the third layer; the third peeling portion is to The three-layer sheet is peeled off from the third separation layer; and the third bonding head is attached to the third holding sheet and held at the third holding surface, and will remain in the third holding surface Laminating the film to the other of the front/back side of the optical display member Side of the side. The production system of the optical display device according to claim 21, further comprising a control device for determining the optical display component and the third layer according to the inspection data of the optical axis direction of the third optical component layer a third relative bonding position; and the third bonding head of the third bonding device is to be attached to the third layer of the third holding surface according to the third relative bonding position determined by the control device The other side of the positive/negative side of the optical display member is coupled. The production system of the optical display device of claim 21, wherein the third bonding device further has a third detecting portion for detecting a defect mark printed on the third optical component layer, and detecting the The portion of the defect mark of the three optical component layers is held by the third bonding head and transported to the third disposal position. The production system of the optical display device according to claim 21, wherein the third bonding device further has a third layer conveying device, which is obtained by winding a third roll of the third optical component layer. Rolling the third optical component layer and transporting the third optical component layer along the longitudinal direction thereof; and the conveying direction of the first optical component layer, the conveying direction of the second optical component layer, and the third optical The conveying directions of the component layers are parallel to each other. The production system of an optical display device according to claim 21, wherein the remaining portions cut from the first layer, the second layer, and the third layer are collectively displayed from the optical display. Peel off at the part. The production system of the optical display device of claim 21, wherein the first cutting device and the second cutting device are laser cutting machines, the first cutting device and the The second cutting device is connected to the same laser output device, and the laser output from the laser output device is supplied to the first cutting device and the second cutting device. The production system of the optical display device according to claim 21, wherein at least one of the first bonding head, the second bonding head and the third bonding head is attached to the first At least one of the ply piece, the second ply piece, and the third ply piece is attached and held at at least one of the first holding surface, the second holding surface, and the third holding surface of the arc shape, and In order to adhere the layer held on the holding surface to the optical display unit or the optical unit assembly, the sheet is tilted and moved along the curved surface of the holding surface.