WO2015025727A1 - 光学部材貼合体の製造装置及び製造方法 - Google Patents
光学部材貼合体の製造装置及び製造方法 Download PDFInfo
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- WO2015025727A1 WO2015025727A1 PCT/JP2014/070892 JP2014070892W WO2015025727A1 WO 2015025727 A1 WO2015025727 A1 WO 2015025727A1 JP 2014070892 W JP2014070892 W JP 2014070892W WO 2015025727 A1 WO2015025727 A1 WO 2015025727A1
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- Prior art keywords
- bonding
- optical
- optical member
- liquid crystal
- crystal panel
- Prior art date
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Classifications
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- G—PHYSICS
- G02—OPTICS
- G02B—OPTICAL ELEMENTS, SYSTEMS OR APPARATUS
- G02B5/00—Optical elements other than lenses
- G02B5/30—Polarising elements
- G02B5/3025—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state
- G02B5/3033—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid
- G02B5/3041—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid comprising multiple thin layers, e.g. multilayer stacks
- G02B5/305—Polarisers, i.e. arrangements capable of producing a definite output polarisation state from an unpolarised input state in the form of a thin sheet or foil, e.g. Polaroid comprising multiple thin layers, e.g. multilayer stacks including organic materials, e.g. polymeric layers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B38/00—Ancillary operations in connection with laminating processes
- B32B38/18—Handling of layers or the laminate
- B32B38/1825—Handling of layers or the laminate characterised by the control or constructional features of devices for tensioning, stretching or registration
- B32B38/1833—Positioning, e.g. registration or centering
- B32B38/1841—Positioning, e.g. registration or centering during laying up
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- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/1303—Apparatus specially adapted to the manufacture of LCDs
-
- G—PHYSICS
- G02—OPTICS
- G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
- G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
- G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour
- G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour based on liquid crystals, e.g. single liquid crystal display cells
- G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
- G02F1/1333—Constructional arrangements; Manufacturing methods
- G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
- G02F1/133528—Polarisers
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- B—PERFORMING OPERATIONS; TRANSPORTING
- B32—LAYERED PRODUCTS
- B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
- B32B2457/00—Electrical equipment
- B32B2457/20—Displays, e.g. liquid crystal displays, plasma displays
- B32B2457/202—LCD, i.e. liquid crystal displays
Definitions
- the present invention relates to a manufacturing apparatus and a manufacturing method for an optical member bonded body.
- Optical members such as polarizing plates and retardation plates are bonded to optical display components such as liquid crystal panels.
- the optical member is bonded in an appropriately aligned state with respect to the optical display component (see, for example, Patent Document 1).
- the optical display component has a predetermined optical axis according to the alignment processing direction of the alignment film and the electrode structure in the pixel (such as the slit shape of the electrode or the longitudinal direction of the electrode formed in a stripe shape).
- the direction of the optical axis of the optical display component is determined in advance by design. However, in the manufacturing stage of the optical display component, there is a variation in the direction of the optical axis, which may cause a deviation from the optical axis of the optical member. It was.
- This invention provides the manufacturing apparatus and manufacturing method of an optical member bonding body which can improve the precision of the optical axis direction of the optical display component bonded to an optical member.
- the present invention employs the following means. (1) That is, the manufacturing apparatus of the 1st optical member bonding body of this invention determines the relative bonding position of the optical member with respect to the said optical display component based on the inspection data of the optical axis direction of an optical display component. And an alignment device that aligns the optical display component and the optical member based on the determined relative bonding position, and a bonding device that bonds the optical member to the optical display component.
- the control device is based on both inspection data in the optical axis direction of the optical display component and inspection data in the optical axis direction of the optical member.
- the relative bonding position may be determined.
- the manufacturing apparatus of the 2nd optical member bonding body of this invention is a sheet piece larger than the display area of the said optical display component with respect to the said optical display component based on the test
- a control device that determines a relative bonding position, an alignment device that aligns the optical display component and the sheet piece based on the determined relative bonding position, and the sheet piece that is bonded to the optical display component
- the “part corresponding to the bonding surface” in the above configuration means that the outer shape of the optical display component (contour shape in plan view) is not less than the size of the display area of the optical display component facing the sheet piece. It refers to a region that is smaller than the size and that avoids a functional portion such as an electrical component mounting portion in the optical display component.
- the “size corresponding to the bonding surface” refers to a size not less than the size of the display area of the optical display component and not more than the size of the outer shape (contour shape in plan view) of the optical display component.
- the apparatus for manufacturing an optical member bonded body according to (3) includes an imaging device that captures an image including the optical display component in a plan view after the sheet piece is bonded to the optical display component.
- the cutting device may cut the sheet piece based on the image.
- the control device includes inspection data in the optical axis direction of the optical display component and inspection data in the optical axis direction of the sheet piece. Based on both, you may determine the relative bonding position of the said sheet piece with respect to the said optical display component.
- the manufacturing method of the 3rd optical member bonding body of this invention is a relative bonding position which determines the relative bonding position of the optical member with respect to the said optical display component based on the test
- the manufacturing method of the 4th optical member bonding body of this invention is a sheet piece larger than the display area of the said optical display component with respect to the said optical display component based on the test
- a relative bonding position determining step for determining a relative bonding position; an alignment step for aligning the optical display component with the sheet piece based on the determined relative bonding position; and the sheet piece on the optical display component.
- the “part corresponding to the bonding surface” in the above configuration means that the outer shape of the optical display component (contour shape in plan view) is not less than the size of the display area of the optical display component facing the sheet piece. It refers to a region that is smaller than the size and that avoids a functional portion such as an electrical component mounting portion in the optical display component.
- the “size corresponding to the bonding surface” refers to a size not less than the size of the display area of the optical display component and not more than the size of the outer shape (contour shape in plan view) of the optical display component.
- the inspection data in the optical axis direction of the optical display component and the optical axis of the sheet piece You may determine the relative bonding position of the said sheet piece with respect to the said optical display component based on both the test
- the present invention it is possible to provide a manufacturing apparatus and a manufacturing method of an optical member bonded body that can improve the accuracy in the optical axis direction of an optical display component bonded to an optical member.
- FIG. 3 is a cross-sectional view taken along line AA in FIG. 2. It is a fragmentary sectional view of the optical member sheet bonded to a liquid crystal panel. It is a figure which shows operation
- the transport direction of the liquid crystal panel which is an optical display component
- the direction orthogonal to the X direction (the width direction of the liquid crystal panel) in the plane of the liquid crystal panel is the Y direction, the X direction, and the Y direction.
- the direction orthogonal to the direction is the Z direction.
- Drawing 1 is a figure showing the schematic structure of film pasting system 1 of this embodiment.
- the film bonding system 1 bonds a film-shaped optical member such as a polarizing film, an antireflection film, and / or a light diffusion film to a panel-shaped optical display component such as a liquid crystal panel or an organic EL panel.
- a liquid crystal display device optical member bonding body
- bonding polarizing films optical members
- the film bonding system 1 of this embodiment is provided as one process of the production line of liquid crystal panel P. As shown in FIG.
- Each part of the film bonding system 1 is comprehensively controlled by a control device 40 as an electronic control device.
- FIG. 2 is a plan view of the liquid crystal panel P viewed 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 a plan view, a second substrate P2 having a relatively small rectangular shape disposed to face the first substrate P1, And a liquid crystal layer P3 sealed between the first substrate P1 and the second substrate P2.
- the liquid crystal panel P has a rectangular shape that conforms to the outer shape of the first substrate P1 in plan view, and a region that fits inside the outer periphery of the liquid crystal layer P3 in plan view is defined as a display region P4.
- FIG. 3 is a cross-sectional view taken along the line AA in FIG.
- the first optical member sheet F ⁇ b> 1 and the second optical member sheet F ⁇ b> 2 are respectively bonded to each other, and the first optical member F11 and the second optical member F12 (hereinafter may be collectively referred to as an optical member F1X) are bonded.
- the first optical member F11 and the second optical member F12 as polarizing films are bonded to both the backlight side and the display surface side of the liquid crystal panel P, respectively.
- FIG. 4 is a partial cross-sectional view of the optical member sheet FX bonded to the liquid crystal panel P.
- the optical member sheet FX includes a film-like optical member main body F1a, an adhesive layer F2a provided on one surface (upper surface in FIG. 4) of the optical member main body F1a, and an adhesive layer F2a.
- the separator F3a is detachably stacked on one surface of the optical member main body F1a, and the surface protection film F4a is stacked on the other surface (lower surface in FIG. 4) of the optical member main body F1a.
- the optical member main body F1a functions as a polarizing film, and is bonded over the entire display area P4 of the liquid crystal panel P and its peripheral area. For convenience of illustration, hatching of each layer in FIG. 4 is omitted.
- the optical member body F1a is bonded to the liquid crystal panel P via the adhesive layer F2a in a state where the separator F3a is separated while leaving the adhesive layer F2a on one surface thereof.
- seat FX is called the bonding sheet
- the separator F3a protects the adhesive layer F2a and the optical member 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 member body F1a.
- the surface protective film F4a is disposed on the side opposite to the liquid crystal panel P with respect to the optical member body F1a to protect the optical member body F1a.
- the surface protective film F4a is separated from the optical member main body F1a at a predetermined timing.
- the optical member sheet FX may be configured not to include the surface protective film F4a, or the surface protective film F4a may be configured not to be separated from the optical member main body F1a.
- the optical member body F1a is bonded to the sheet-like polarizer F6, the first film F7 bonded to one surface of the polarizer F6 with an adhesive or the like, and the other surface of the polarizer F6 with an adhesive or the like. And a second film F8.
- the first film F7 and the second film F8 are protective films that protect the polarizer F6, for example.
- the optical member body F1a may have a single-layer structure composed of a single optical layer, or may have a stacked structure in which a plurality of optical layers are stacked on each other.
- the optical layer may be a retardation film, a brightness enhancement film, or the like.
- At least one of the first film F7 and the second film F8 may be subjected to a surface treatment that provides an effect such as anti-glare including hard coat treatment and anti-glare treatment for protecting the outermost surface of the liquid crystal display element.
- the optical member body F1a may not include at least one of the first film F7 and the second film F8.
- the separator F3a may be bonded to one surface of the optical member main body F1a via the adhesive layer F2a.
- the film laminating system 1 includes a liquid crystal panel P on the right side in the transport direction (+ X direction side) from the upstream side in the transport direction (+ X direction side) of the liquid crystal panel P on the left side in the figure ( ⁇ X-direction side), and a drive type roller conveyor 5 that conveys the liquid crystal panel P in a horizontal state is provided.
- the roller conveyor 5 is divided into an upstream conveyor 6 and a downstream conveyor 7 with a reversing device 15 described later as a boundary.
- the liquid crystal panel P On the upstream conveyor 6, the liquid crystal panel P is transported so that the short side of the display area P ⁇ b> 4 is along the transport direction.
- the downstream conveyor 7 On the other hand, on the downstream conveyor 7, the liquid crystal panel P is transported with the long side of the display area P ⁇ b> 4 along the transport direction.
- the sheet piece (optical member F1X) of the bonding sheet F5 cut out to a predetermined length from the belt-shaped optical member sheet FX is bonded to the front and back surfaces of the liquid crystal panel P.
- the upstream conveyor 6 includes an independent free roller conveyor 24 on the downstream side in the first alignment device 11 described later.
- the downstream conveyor 7 is provided with an independent free roller conveyor 24 on the downstream side in the second alignment apparatus 20 described later.
- the film bonding system 1 of this embodiment is the 1st alignment apparatus 11, the 1st dust collector 12, the 1st bonding apparatus 13, the inversion apparatus 15, the 2nd alignment apparatus 20, the 2nd dust collection apparatus 16, and 2nd.
- a bonding device 17 and a control device 40 are provided.
- the first alignment device 11 adsorbs the liquid crystal panel P and conveys it to the upstream conveyor 6 and performs alignment (positioning) of the liquid crystal panel P.
- the first alignment device 11 includes a panel holding unit 11a, an alignment camera 11b, and a rail R.
- the panel holding unit 11a holds the liquid crystal panel P in contact with the downstream stopper S by the upstream conveyor 6 so as to be movable in the vertical direction and the horizontal direction, and aligns the liquid crystal panel P.
- the panel holding part 11a sucks and holds the upper surface of the liquid crystal panel P in contact with the stopper S by vacuum suction.
- the panel holding part 11a moves on the rail R in a state where the liquid crystal panel P is sucked and held, and transports the liquid crystal panel P.
- the panel holding unit 11 a releases the suction holding and delivers the liquid crystal panel P to the free roller conveyor 24.
- the alignment camera 11b holds the liquid crystal panel P in contact with the stopper S by the panel holding portion 11a, and images the alignment mark, the tip shape, etc. of the liquid crystal panel P in the raised state. Image data taken by the alignment camera 11b is transmitted to the control device 40.
- the imaging process by the alignment camera 11b is not limited to the alignment mark or tip shape of the liquid crystal panel P, but may be performed based on the outer shape of the liquid crystal panel P or the black matrix.
- the control device 40 operates the first alignment device 11 based on the imaging data and the inspection data in the optical axis direction of the liquid crystal panel P stored in advance.
- the “optical axis direction of the liquid crystal panel P” refers to a direction defined by the alignment treatment direction of the alignment film for controlling the alignment direction of the liquid crystal and the electrode structure in the pixel.
- the alignment treatment direction of the alignment film refers to the alignment direction of liquid crystal generated by rubbing treatment or photo-alignment treatment.
- the direction defined by the electrode structure in the pixel is the alignment direction of the liquid crystal when a voltage is applied (the rotation direction of the liquid crystal molecule in the horizontal plane, the liquid crystal molecule direction relative to the substrate normal direction). This refers to the extending direction of a plurality of stripe electrodes formed to define the (tilting direction).
- an axis parallel to the alignment treatment direction of the alignment film and the direction defined by the electrode structure in the pixel is defined as the optical axis of the liquid crystal panel P.
- the liquid crystal panel in the “optical axis direction of the liquid crystal panel P” means a single liquid crystal panel before an optical member such as a polarizing film is bonded.
- the optical axis direction of the liquid crystal panel P is a high-speed retardation measuring device (model: RE-100) manufactured by Otsuka Electronics Co., Ltd., a cell gap inspection device (model: RETS) manufactured by Otsuka Electronics Co., Ltd., manufactured by Oji Scientific Instruments Co., Ltd. Measurement is performed using an optical axis measuring device such as a phase difference measuring device (model: KOBRA-WPR).
- the sample (liquid crystal panel P) size that can be measured by RE-100 is 10 mm ⁇ 10 mm to 100 mm ⁇ 100 mm.
- the sample size that can be measured by RETS is 20 mm ⁇ 20 mm or more, and can be applied to a large panel of 2000 mm ⁇ 2000 mm or more.
- the measurement method in the optical axis direction of the liquid crystal panel P is that a polarizer is disposed on the upper side of the sample and an analyzer is disposed on the lower side of the sample, and a single wavelength light beam is irradiated from the polarizer side.
- the phase difference and the orientation angle of the sample are obtained from the angle dependence of the transmitted light intensity when the lens is rotated around the light axis while maintaining the parallel Nicols.
- the optical axis direction of the liquid crystal panel P is measured with reference to the alignment mark, tip shape, outer shape, and black matrix of the liquid crystal panel P.
- the optical axis direction of the liquid crystal panel P is measured in advance outside the line of the film bonding system 1.
- the timing of detecting the optical axis direction of the liquid crystal panel P may be at the time of manufacturing the liquid crystal panel P or until the liquid crystal panel P is carried into the line.
- the optical axis measuring device may be incorporated on the upstream side of the panel conveyance with respect to the first alignment device 11, and the optical axis direction of the liquid crystal panel P may be measured in advance within the line.
- the control device 40 operates the first alignment device 11 based on both the inspection data in the optical axis direction of the liquid crystal panel P and the inspection data in the optical axis direction of the optical member F1X.
- the inspection data in the optical axis direction of the optical member F1X is obtained by the following method.
- a plurality of inspection points are set in the width direction of the optical member sheet FX, and the direction of the optical axis of the optical member sheet FX is detected at each inspection point.
- the timing for detecting the optical axis may be at the time of manufacturing the original fabric roll R1, or may be until the optical member sheet FX is unwound from the original fabric roll R1 and half cut.
- Data in the optical axis direction of the optical member sheet FX is stored in a storage device (not shown) in association with the position of the optical member sheet FX (position in the longitudinal direction and position in the width direction of the optical member sheet FX).
- the control device 40 acquires the optical axis data (inspection data of the in-plane distribution of the optical axis) of each inspection point from the storage device, and the optical member sheet FX (cutting) of the portion from which the sheet piece (optical member F1X) is cut out.
- the direction of the average optical axis in the region defined by the line CL is detected as the optical axis direction of the optical member F1X.
- the control device 40 determines the bonding position (relative bonding position) between the optical member F1X and the liquid crystal panel P based on the inspection data of the in-plane distribution of the optical axis in each part of the optical member sheet FX.
- the first alignment device 11 aligns the liquid crystal panel P so that the optical axis direction of the liquid crystal panel P and the optical axis direction of the optical member F1X have a predetermined arrangement.
- the predetermined arrangement is such that the optical axis direction of the liquid crystal panel P and the optical axis direction of the optical member F1X are parallel, or the optical axis direction of the liquid crystal panel P and the optical axis direction of the optical member F1X are predetermined. Or make an angle of.
- the predetermined arrangement is appropriately set to a desired arrangement based on the required specifications of the optical display device.
- the first alignment device 11 is controlled by the control device 40 and performs alignment of the liquid crystal panel P with respect to the first bonding device 13. Specifically, the panel holding part 11a is operated to align the liquid crystal panel P with the free roller conveyor 24 as the transport destination. At this time, the liquid crystal panel P is transported to the free roller conveyor 24 in consideration of the transport direction with respect to the free roller conveyor 24, the direction orthogonal to the transport direction, and the deviation in the turning direction around the vertical axis of the liquid crystal panel P. The The liquid crystal panel P conveyed on the rail R by the panel holding part 11a is nipped by the pressure roller 23 together with the sheet piece (optical member F1X) while being adsorbed by the adsorption pad 26.
- the 1st dust collector 12 is arrange
- the first dust collector 12 removes static electricity and collects dust in order to remove dust around the liquid crystal panel P before being introduced to the bonding position, particularly dust on the lower surface side.
- the 1st bonding apparatus 13 is provided in the panel conveyance direction downstream rather than the 1st alignment apparatus 11.
- FIG. The 1st bonding apparatus 13 bonds the sheet piece (1st optical member F11) of the bonding sheet
- the first bonding device 13 includes a transport device 22 and a pinching roll 23.
- the conveying device 22 conveys the optical member sheet FX along its longitudinal direction while unwinding the optical member sheet FX from the original roll R1 around which the optical member sheet FX is wound.
- the conveying apparatus 22 conveys the bonding sheet
- the conveyance device 22 includes a roll holding portion 22a, a plurality of guide rollers 22b, a cutting device 22c, a knife edge 22d, and a winding portion 22e.
- the roll holding unit 22a holds the original roll R1 around which the belt-shaped optical member sheet FX is wound, and feeds the optical member sheet FX along its longitudinal direction.
- the plurality of guide rollers 22b wind the optical member sheet FX so as to guide the optical member sheet FX unwound from the original fabric roll R1 along a predetermined conveyance path.
- the cutting device 22c performs a half cut on the optical member sheet FX on the transport path.
- the knife edge 22d supplies the bonding sheet F5 to the bonding position while winding the optical member sheet FX subjected to the half cut at an acute angle to separate the bonding sheet F5 from the separator F3a.
- the winding unit 22e holds a separator roll R2 that winds the separator F3a that has become independent through the knife edge 22d.
- the roll holding unit 22a positioned at the start point of the transport device 22 and the winding unit 22e positioned at the end point of the transport device 22 are driven in synchronization with each other, for example.
- the winding part 22e winds up the separator F3a that has passed through the knife edge 22d while the roll holding part 22a feeds the optical member sheet FX in the transport direction.
- the upstream side in the transport direction of the optical member sheet FX (separator F3a) in the transport device 22 is referred to as a sheet transport upstream side
- the downstream side in the transport direction is referred to as a sheet transport downstream side.
- Each guide roller 22b changes the traveling direction of the optical member sheet FX being conveyed along the conveyance path, and at least a part of the plurality of guide rollers 22b is movable so as to adjust the tension of the optical member sheet FX being conveyed. To do.
- a dancer roller (not shown) may be disposed between the roll holding unit 22a and the cutting device 22c.
- the dancer roller absorbs the feeding amount of the optical member sheet FX conveyed from the roll holding unit 22a while the optical member sheet FX is cut by the cutting device 22c.
- FIG. 5 is a diagram illustrating the operation of the cutting device 22c of the present embodiment.
- the cutting device 22c when the optical member sheet FX is fed out by a predetermined length, the cutting device 22c extends in the thickness direction of the optical member sheet FX over the entire width in the width direction orthogonal to the longitudinal direction of the optical member sheet FX. Perform half cut to cut a part.
- the cutting device 22c of the present embodiment is provided so as to be able to advance and retreat toward the optical member sheet FX from the side opposite to the separator F3a with respect to the optical member sheet FX.
- the cutting device 22c adjusts the advancing / retreating position of the cutting blade so that the optical member sheet FX (separator F3a) is not broken by the tension acting during conveyance of the optical member sheet FX (so that a predetermined thickness remains in the separator F3a). Then, half-cut is performed to the vicinity of the interface between the adhesive layer F2a and the separator F3a. In addition, you may use the laser apparatus replaced with a cutting blade.
- the optical member main body F1a and the surface protection film F4a are cut in the thickness direction, thereby forming cut lines L1 and L2 over the entire width in the width direction of the optical member sheet FX. Is done.
- the cut lines L1 and L2 are formed so as to be aligned in the longitudinal direction of the belt-shaped optical member sheet FX.
- the plurality of cut lines L1 and L2 are formed at equal intervals in the longitudinal direction of the optical member sheet FX.
- the optical member sheet FX is divided into a plurality of sections in the longitudinal direction by a plurality of cut lines L1, L2.
- the sections sandwiched between the pair of cut lines L1 and L2 adjacent in the longitudinal direction in the optical member sheet FX are each one sheet piece (optical member F1X) in the bonding sheet F5.
- the knife edge 22d is disposed below the upstream conveyor 6 and extends over at least the entire width in the width direction of the optical member sheet FX.
- the knife edge 22d is wound so as to be in sliding contact with the separator F3a side of the optical member sheet FX after the half cut.
- the knife edge 22d is arranged from the width direction of the optical member sheet FX above the first surface, and the first surface disposed in an inclined position when viewed from the width direction of the optical member sheet FX (the width direction of the upstream conveyor 6). It has the 2nd surface arrange
- the knife edge 22d winds the 1st optical member sheet
- the first optical member sheet F1 separates the sheet piece (optical member F1X) of the bonding sheet F5 from the separator F3a when folded at an acute angle at the tip of the knife edge 22d.
- the tip end of the knife edge 22d is disposed close to the downstream side of the pinching roll 23 in the panel conveying direction.
- the optical member F1X separated from the separator F3a by the knife edge 22d is introduced between the pair of bonding rollers 23a of the pinching roll 23 while overlapping the lower surface of the liquid crystal panel P in a state of being sucked by the first alignment device 11. .
- the separator F3a separated from the bonding sheet F5 is directed to the winding portion 22e by the knife edge 22d.
- the winding unit 22e winds and collects the separator F3a separated from the bonding sheet F5.
- the pinching roll 23 bonds the optical member F1X separated from the first optical member sheet F1 by the transport device 22 to the lower surface of the liquid crystal panel P transported by the upstream conveyor 6.
- the pinching roll 23 has a pair of bonding rollers 23a and 23a arranged in parallel with each other in the axial direction (the upper bonding roller 23a moves up and down).
- a predetermined gap is formed between the pair of bonding rollers 23 a and 23 a, and the inside of this gap is the bonding position of the first bonding apparatus 13.
- liquid crystal panel P and the optical member F1X are overlapped and introduced.
- the liquid crystal panel P and the optical member F1X are sent out to the downstream side in the panel transport direction of the upstream conveyor 6 while being sandwiched between the bonding rollers 23a.
- 1st optical member bonding body PA1 is formed by bonding the 1st optical member F11 to the surface at the side of the backlight of liquid crystal panel P with the pinching roll 23.
- the first optical member F11 having a size corresponding to the display region P4 of the liquid crystal panel P is bonded to the surface of the liquid crystal panel P on the backlight side.
- the first optical member F11 having the same size as the outer shape of the liquid crystal panel P (first substrate P1) is bonded to the surface of the liquid crystal panel P on the backlight side.
- the first optical member F11 may be bonded slightly larger than the display area P4 of the liquid crystal panel P.
- the slightly larger size is allowed to be about 500 ⁇ m outside the black matrix on each side of the liquid crystal panel P (first substrate P1).
- the reversing device 15 reverses the front and back of the first optical member bonding body PA1 with the display surface side of the liquid crystal panel P as the upper surface so that the backlight side of the liquid crystal panel P is the upper surface, and the first with respect to the second bonding device 17. Alignment of optical member bonding body PA1 is performed.
- the reversing device 15 has the same alignment function as the panel holding portion 11a of the first alignment device 11.
- the reversing device 15 is provided with an alignment camera 15 c similar to the alignment camera 11 b of the first alignment device 11.
- the reversing device 15 performs positioning in the component width direction and positioning in the rotation direction of the first optical member bonding body PA1 with respect to the second bonding device 17 based on the imaging data of the alignment camera 15c. In this state, 1st optical member bonding body PA1 is introduce
- FIG. 1st optical member bonding body PA1 is introduce
- the second alignment device 20 adsorbs the first optical member bonding body PA1 and conveys it to the downstream conveyor 7 and performs alignment (positioning) of the first optical member bonding body PA1.
- the second alignment apparatus 20 includes a panel holding unit 11a, an alignment camera 11b, and a rail R.
- the panel holding portion 11a holds the first optical member bonding body PA1 that is in contact with the downstream stopper S by the downstream conveyor 7 so as to be movable in the vertical direction and the horizontal direction, and aligns the first optical member bonding body PA1.
- maintenance part 11a adsorbs and hold
- maintenance part 11a moves on the rail R in the state which adsorbed and hold
- the alignment camera 11b holds the first optical member bonding body PA1 in contact with the stopper S by the panel holding portion 11a, and images the alignment mark, the tip shape, and the like of the first optical member bonding body PA1 in the raised state. Image data taken by the alignment camera 11b is transmitted to the control device 40.
- the imaging process by the alignment camera 11b is not limited to the alignment mark or tip shape of the liquid crystal panel P, but may be performed based on the outer shape of the liquid crystal panel P or the black matrix.
- the control device 40 operates the second alignment device 20 based on the imaging data and the inspection data stored in advance in the optical axis direction of the liquid crystal panel P. That is, the operation of the second alignment device 20 is performed based on the inspection data in the optical axis direction of the liquid crystal panel P used when the first alignment device 11 is operated.
- the control device 40 operates the second alignment device 20 based on both the inspection data in the optical axis direction of the liquid crystal panel P and the inspection data in the optical axis direction of the optical member F1X.
- the second alignment device 20 is controlled by the control device 40 and performs alignment of the first optical member bonding body PA1 with respect to the second bonding device 17. Specifically, the panel holding part 11a is operated to align the first optical member bonding body PA1 with respect to the free roller conveyor 24 as the transport destination. At this time, 1st optical member bonding body PA1 is the state which considered the gap in the turning direction about the perpendicular direction of the conveyance direction with respect to the free roller conveyor 24, the direction orthogonal to a conveyance direction, and 1st optical member bonding body PA1. Is conveyed to the free roller conveyor 24.
- the 2nd dust collector 16 is arrange
- the second dust collecting device 16 performs static electricity removal and dust collection in order to remove dust around the first optical member bonded body PA1 before being introduced to the bonding position, particularly dust on the lower surface side.
- the 2nd bonding apparatus 17 is provided in the panel conveyance direction downstream rather than the 2nd dust collector 16.
- FIG. The 2nd bonding apparatus 17 bonded the sheet piece (2nd optical member F12) of the bonding sheet
- the 2nd bonding apparatus 17 is provided with the conveying apparatus 22 and the pinching roll 23 similar to the 1st bonding apparatus 13.
- 1st optical member bonding body PA1 and 2nd optical member F12 are overlapped and introduced in the clearance gap (a bonding position of the 2nd bonding apparatus 17) between a pair of bonding rollers 23a of the pinching roll 23.
- FIG. 1st optical member bonding body PA1 and 2nd optical member F12 are overlapped and introduced in the clearance gap (a bonding position of the 2nd bonding apparatus 17) between a pair of bonding rollers 23a of the pinching roll 23.
- These 1st optical member bonding bodies PA1 and 2nd optical member F12 are sent out to the panel conveyance direction downstream side of the downstream conveyor 7, being pinched by each bonding roller 23a.
- the second optical is applied to the surface on the display surface side of the liquid crystal panel P by the pinching roll 23 (the surface opposite to the surface on which the first optical member F11 of the first optical member bonding body PA1 is bonded).
- the second optical member bonding body PA2 is formed.
- the second optical member F12 having a size corresponding to the display area P4 of the liquid crystal panel P is bonded to the surface on the display surface side of the liquid crystal panel P.
- the second optical member F12 having the same size as the outer shape of the liquid crystal panel P (second substrate P2) is bonded to the surface on the display surface side of the liquid crystal panel P.
- the second optical member F12 may be bonded slightly larger than the display area P4 of the liquid crystal panel P.
- the slightly larger size is allowed to be about 500 ⁇ m outside the black matrix on each side of the liquid crystal panel P (second substrate P2).
- a bonding inspection device (not shown) is provided downstream of the second bonding device 17 in the panel conveyance direction.
- the bonding inspection apparatus is an inspection (not shown whether the position of the optical member F1X is appropriate (whether the position deviation is within the tolerance range)) by the inspection apparatus (not shown) of the workpiece (liquid crystal panel P) on which the film is bonded. Etc.).
- the work determined that the position of the optical member F1X with respect to the liquid crystal panel P is not appropriate is discharged out of the system by a not-shown discharging means.
- the control apparatus 40 as an electronic control apparatus which performs overall control of each part of the film bonding system 1 is configured including a computer system.
- This computer system includes an arithmetic processing unit such as a CPU and a storage unit such as a memory and a hard disk.
- the control device 40 of the present embodiment includes an interface capable of executing communication with a device external to the computer system.
- An input device that can input an input signal may be connected to the control device 40.
- the input device includes an input device such as a keyboard and a mouse, or a communication device that can input data from a device external to the computer system.
- the control device 40 may include a display device such as a liquid crystal display that indicates the operation status of each part of the film bonding system 1, or may be connected to the display device.
- An operating system (OS) that controls the computer system is installed in the storage unit of the control device 40.
- a program that causes the storage unit of the control device 40 to execute processing for causing each unit of the film bonding system 1 to accurately convey the optical member sheet FX by causing the arithmetic processing unit to control each unit of the film bonding system 1. Is recorded.
- Various types of information including programs recorded in the storage unit can be read by the arithmetic processing unit of the control device 40.
- the control device 40 may include a logic circuit such as an ASIC that executes various processes required for controlling each part of the film bonding system 1.
- the storage unit is a concept including a semiconductor memory such as a RAM (Random Access Memory) and a ROM (Read Only Memory), and an external storage device such as a hard disk, a CD-ROM reader, and a disk-type storage medium.
- the storage unit functionally includes a first alignment device 11, a first dust collector 12, a first bonding device 13, a reversing device 15, a second alignment device 20, a second dust collecting device 16, and a second bonding.
- the manufacturing apparatus of the optical member bonding body is a manufacturing apparatus of the second optical member bonding body PA2 formed by bonding the optical members F11 and F12 to the liquid crystal panel P, and Before the optical members F11 and F12 are bonded to the liquid crystal panel P, the optical devices F11 and F12 are bonded to the liquid crystal panel P, respectively.
- the control device 40 for determining the relative bonding position between the liquid crystal panel P and the optical members F11 and F12, and the control before the optical members F11 and F12 are bonded to the liquid crystal panel P, respectively. Based on the relative bonding positions determined by the devices 40, the liquid crystal panel P and the optical members F11 and F12 are respectively aligned.
- the control device 40 checks the inspection data in the optical axis direction of the liquid crystal panel P and the optical axis directions of the optical members F11 and F12. The relative bonding positions of the liquid crystal panel P and the optical members F11 and F12 are respectively determined based on both of the inspection data.
- the liquid crystal panel P and the optical member F1X are bonded to each other after alignment based on the inspection data in the optical axis direction of the liquid crystal panel P, thereby causing variations in the optical axis direction for each liquid crystal panel P.
- the liquid crystal panel P can be aligned and bonded in accordance with the optical axis direction.
- the precision of the optical axis direction of the liquid crystal panel P with respect to the optical member F1X increases, and the color and contrast of the optical display device can be increased.
- it can respond also to manufacture of the optical member bonding body containing liquid crystal panel P which has arbitrary optical axis directions.
- the optical axis direction changes according to the position of optical member sheet
- the liquid crystal panel P can be aligned and bonded in accordance with the optical axis direction.
- the precision of the optical axis direction of the optical members F11 and F12 with respect to the liquid crystal panel P increases, and the color and contrast of the optical display device can be increased.
- it can respond also to manufacture of the optical member bonding body containing the optical member F1X which has arbitrary optical axis directions.
- the manufacturing method of the optical member bonding body in the present embodiment includes a bonding step of bonding the optical member F1X to the liquid crystal panel P, and the liquid crystal panel P before the optical member F1X is bonded to the liquid crystal panel P. Before bonding the optical member F1X to the liquid crystal panel P, and a relative bonding position determining step for determining a relative bonding position between the liquid crystal panel P and the optical member F1X. The alignment process of aligning the liquid crystal panel P and the optical member F1X based on the relative bonding position determined in the relative bonding position determination process.
- the inspection data in the optical axis direction of the liquid crystal panel P and the inspection data in the optical axis direction of the optical member F1X are compared. Based on both, the relative bonding position of the said liquid crystal panel P and the said optical member F1X is determined.
- FIG. 6 is a diagram illustrating a schematic configuration of the film bonding system 2 of the present embodiment.
- components that are the same as those in the first embodiment are denoted by the same reference numerals, and detailed description thereof is omitted.
- the width and length of the optical member F1X bonded by the bonding apparatuses 13 and 17 are equivalent to that in the display region P4 of the liquid crystal panel P is taken as an example.
- a cutting device for cutting off an excess portion of the sheet piece is provided. In this respect, it differs greatly from the first embodiment.
- first and second optical members F11 and F12 are attached to the sheet piece FXm from first and second sheet pieces F1m and F2m (hereinafter sometimes collectively referred to as sheet pieces FXm), which will be described later. It is formed by cutting off the excess part on the outside of the bonding surface between the combined liquid crystal panel P and the sheet piece FXm.
- the film bonding system 2 of this embodiment is the 1st alignment apparatus 11, the 1st dust collector 12, the 1st bonding apparatus 13, the 1st detection apparatus 41, the 1st cutting device 31, the inversion apparatus 15, and the 2nd alignment.
- the apparatus 20, the second dust collecting device 16, the second bonding device 17, the second detection device 42, the second cutting device 32, and the control device 40 are provided.
- the 1st bonding apparatus 13 is the bonding of the sheet piece (1st sheet piece F1m) of the bonding sheet
- each of the sections between the pair of cut lines L1 and L2 adjacent in the longitudinal direction in the optical member sheet FX is a sheet piece FXm in the bonding sheet F5 (see FIG. 5).
- the sheet piece FXm is a sheet piece of the optical member sheet FX having a size larger than the display area P4 of the liquid crystal panel P.
- separated from the separator F3a with the knife edge 22d overlaps with the lower surface of liquid crystal panel P of the state adsorbed by the 1st alignment apparatus 11, and a pair of pinching roll 23 It introduce
- the first sheet piece F1m is a sheet piece of the first optical member sheet F1 having a size larger than the display area P4 of the liquid crystal panel P.
- the liquid crystal panel P and the first sheet piece F1m are overlapped and introduced into the gap. These liquid crystal panel P and the 1st sheet piece F1m are sent out to the panel conveyance direction downstream of the upstream conveyor 6, being pinched by each bonding roller 23a.
- the 1st sheet piece bonding body PS1 is formed by the 1st sheet piece F1m being bonded to the surface at the side of the backlight of liquid crystal panel P with the pinching roll 23.
- the 1st detection apparatus 41 is provided in the panel conveyance direction downstream rather than the 1st bonding apparatus 13.
- FIG. The 1st detection apparatus 41 detects the edge of the bonding surface (henceforth a 1st bonding surface) of liquid crystal panel P and the 1st sheet piece F1m.
- the first detection device 41 has an edge ED (outside of the bonding surface) of the first bonding surface SA ⁇ b> 1 in the four inspection areas CA installed on the conveyance path of the upstream conveyor 6. Edge).
- region CA is arrange
- the edge ED is detected for each liquid crystal panel P conveyed on the line.
- the edge ED data detected by the first detection device 41 is stored in a storage unit (not shown).
- the bonding surface of the liquid crystal panel P and the sheet piece FXm refers to a surface facing the sheet piece FXm of the liquid crystal panel P, and specifically, “the outer peripheral edge of the bonding surface” In liquid crystal panel P, the outer periphery of the board
- region CA may be arrange
- FIG. 11 is a schematic diagram of the first detection device 41.
- the configuration of the first detection device 41 is shown upside down with the side on which the first sheet piece F1m of the first sheet piece bonding body PS1 is bonded as the upper side.
- the first detection device 41 has an illumination light source 44 that illuminates the edge ED and the first bonding surface SA1 rather than the edge ED with respect to the normal direction of the first bonding surface SA1.
- the image pickup device 43 is arranged in an inwardly inclined posture and picks up an image of the edge ED from the side on which the first sheet piece F1m of the first sheet piece bonding body PS1 is bonded.
- the illumination light source 44 and the imaging device 43 are respectively arranged in the four inspection areas CA (positions corresponding to the four corners of the first bonding surface SA1) shown in FIG.
- An angle ⁇ formed between the normal line of the first bonding surface SA1 and the normal line of the image pickup surface 43a of the image pickup device 43 (hereinafter referred to as an inclination angle ⁇ of the image pickup device 43) is divided into panels within the image pickup field of the image pickup device 43. It is preferable to set so that time lag, burrs and the like do not enter. For example, when the end surface of the second substrate P2 is shifted outward from the end surface of the first substrate P1, the inclination angle ⁇ of the imaging device 43 is set so that the edge of the second substrate P2 enters the imaging field of the imaging device 43. Set to not.
- the inclination angle ⁇ of the imaging device 43 is set to match the distance H (hereinafter referred to as the height H of the imaging device 43) between the first bonding surface SA1 and the center of the imaging surface 43a of the imaging device 43. It is preferred that For example, when the height H of the imaging device 43 is 50 mm or more and 100 mm or less, the inclination angle ⁇ of the imaging device 43 is preferably set to an angle in the range of 5 ° or more and 20 ° or less. However, when the deviation amount is empirically known, the height H of the imaging device 43 and the inclination angle ⁇ of the imaging device 43 can be obtained based on the deviation amount. In the present embodiment, the height H of the imaging device 43 is set to 78 mm, and the inclination angle ⁇ of the imaging device 43 is set to 10 °.
- the illumination light source 44 and the imaging device 43 are fixedly arranged in each inspection area CA.
- the illumination light source 44 and the imaging device 43 may be arranged so as to be movable along the edge ED of the first bonding surface SA1.
- the illumination light source 44 and the imaging device 43 should each be provided one each. Thereby, the illumination light source 44 and the imaging device 43 can be moved to a position where the edge ED of the first bonding surface SA1 can be easily imaged.
- the illumination light source 44 is arrange
- the illumination light source 44 is arrange
- the optical axis of the illumination light source 44 and the normal line of the imaging surface 43a of the imaging device 43 are parallel.
- the illumination light source may be arrange
- the optical axis of the illumination light source 44 and the normal line of the imaging surface 43a of the imaging device 43 may slightly cross each other.
- each of the imaging device 43 and the illumination light source 44 may be arrange
- a distance H1 between the first bonding surface SA1 and the center of the imaging surface 43a of the imaging device 43 (hereinafter referred to as a height H1 of the imaging device 43) detects the edge ED of the first bonding surface SA1. It is preferable to set the position where it is easy to do.
- the height H1 of the imaging device 43 is preferably set in a range of 50 mm or more and 150 mm or less.
- the cut position of the first sheet piece F1m is adjusted based on the detection result of the edge ED of the first bonding surface SA1.
- the control apparatus 40 acquires the data of the edge ED of 1st bonding surface SA1 memorize
- the cutting position of the first sheet piece F1m is determined so that it does not protrude beyond the outer side.
- the first cutting device 31 cuts the first sheet piece F1m at the cutting position determined by the control device 40.
- the first cutting device 31 is provided downstream of the first detection device 41 in the panel conveyance direction.
- the 1st cutting device 31 performs the laser cut along edge ED, and is the 1st sheet piece F1m (1st sheet
- the surplus part of the piece F1m) is cut off, and an optical member (first optical member F11) having a size corresponding to the first bonding surface SA1 is formed.
- the 1st cutting device 31 is corresponded to the cutting device as described in a claim.
- the “size corresponding to the first bonding surface SA1” is not less than the size of the display area P4 of the liquid crystal panel P and not more than the size of the outer shape (contour shape in plan view) of the liquid crystal panel P.
- the 1st optical member F11 is bonded to the surface by the side of the back light of liquid crystal panel P by cutting off the surplus part of the 1st sheet piece F1m from the 1st sheet piece pasting object PS1 with the 1st cutting device 31.
- One optical member bonding body PA1 is formed.
- 1st optical member bonding body PA1 and the part (1st optical member F11) corresponding to 1st bonding surface SA1 are cut off, and the surplus part of the 1st sheet piece F1m which remains in frame shape is isolate
- the surplus part cut off from the first sheet piece F1m is peeled off and collected from the liquid crystal panel P by a peeling device (not shown).
- the “part corresponding to the first bonding surface SA1” is a region that is not less than the size of the display region P4 and not more than the size of the outer shape of the liquid crystal panel P, and a functional part such as an electrical component mounting portion. Indicates an area that avoids.
- the surplus portion is laser-cut along the outer peripheral edge of the liquid crystal panel P on the three sides excluding the functional portion in the liquid crystal panel P having a rectangular shape in plan view, and the liquid crystal panel is removed on one side corresponding to the functional portion.
- the surplus portion is laser-cut at a position that appropriately enters the display region P4 side from the outer peripheral edge of the panel P.
- the 2nd bonding apparatus 17 is a sheet piece (2nd sheet piece) of the bonding sheet
- the first sheet piece F2m is a sheet piece of the second optical member sheet F2 having a size larger than the display area P4 of the liquid crystal panel P.
- These 1st optical member bonding bodies PA1 and 2nd sheet piece F2m are sent out to the panel conveyance direction downstream of the downstream conveyor 7, being pinched by each bonding roller 23a.
- the second sheet is provided on the surface on the display surface side of the liquid crystal panel P (the surface opposite to the surface on which the first optical member F11 of the first optical member bonding body PA1 is bonded) by the pinching roll 23.
- the second sheet piece bonded body PS2 is formed by bonding the piece F2m.
- the 2nd detection apparatus 42 is provided in the panel conveyance direction downstream rather than the 2nd bonding apparatus 17.
- FIG. The 2nd detection apparatus 42 detects the edge of the bonding surface (henceforth a 2nd bonding surface) of liquid crystal panel P and the 2nd sheet piece F2m.
- the edge data detected by the second detection device 42 is stored in a storage unit (not shown).
- the cut position of the second sheet piece F2m is adjusted based on the detection result of the edge of the second bonding surface.
- the control apparatus 40 (refer FIG. 6) acquires the data of the edge of the 2nd bonding surface memorize
- the cutting position of the second sheet piece F2m is determined so as not to protrude.
- the second cutting device 32 cuts the second sheet piece F2m at the cutting position determined by the control device 40.
- the second cutting device 32 is provided downstream of the second detection device 42 in the panel conveyance direction.
- the 2nd cutting device 32 performs the laser cut along the edge of the 2nd bonding surface, and is the 2nd sheet piece F2m of the part which protruded from the 2nd optical member bonding body PA2 to the outer side of the 2nd bonding surface. (Excess part of the second sheet piece F2m) is cut off, and an optical member (second optical member F12) having a size corresponding to the second bonding surface is formed.
- the “size corresponding to the second bonding surface” is not less than the size of the display region P4 of the liquid crystal panel P and not more than the size of the outer shape (contour shape in plan view) of the liquid crystal panel P. Point to.
- the second optical member F12 is bonded to the surface on the display surface side of the liquid crystal panel P by cutting off the surplus portion of the second sheet piece F2m from the second optical member bonding body PA2 by the second cutting device 32, and 1st optical member bonding body PA1 (optical member bonding body) formed by bonding 1st optical member F11 to the surface at the side of the backlight of liquid crystal panel P is formed.
- the 2nd optical member bonding body PA2 and the part (2nd optical member F12) corresponding to a 2nd bonding surface are cut off, and the surplus part of the 2nd sheet piece F2m which remains in frame shape is isolate
- the surplus part cut off from the second sheet piece F2m is peeled off and collected from the liquid crystal panel P by a peeling device (not shown).
- the above-mentioned “part corresponding to the second bonding surface” is a region that is not less than the size of the display region P4 and not more than the size of the outer shape of the liquid crystal panel P, and a functional part such as an electrical component mounting portion Indicates the area that was avoided.
- the surplus portions are laser-cut along the outer peripheral edge of the liquid crystal panel P on the four sides of the liquid crystal panel P having a rectangular shape in plan view. For example, when the portion corresponding to the second bonding surface is the bonding surface of the CF substrate, there is no portion corresponding to the functional portion, and therefore the four sides of the liquid crystal panel P are cut along the outer peripheral edge of the liquid crystal panel P. .
- the 1st cutting device 31 is 1st along the outer periphery of the bonding surface (1st bonding surface SA1) of liquid crystal panel P and the 1st sheet piece F1m which the 1st detection apparatus 41 detected. Cut one sheet piece F1m.
- the 2nd cutting device 32 cut disconnects the 2nd sheet piece F2m along the outer periphery of the bonding surface (2nd bonding surface) of liquid crystal panel P and the 2nd sheet piece F2m which the 2nd detection apparatus 42 detected. To do.
- the first cutting device 31 and second cutting device 32 is, for example, CO 2 laser cutter.
- the 1st cutting device 31 and the 2nd cutting device 32 cut
- the size of the surplus portion of the sheet piece FXm (the size of the portion protruding outside the liquid crystal panel P) is appropriately set according to the size of the liquid crystal panel P. For example, when the sheet piece FXm is applied to a medium-sized liquid crystal panel P of 5 to 10 inches, the distance between one side of the sheet piece FXm and one side of the liquid crystal panel P is 2 mm on each side of the sheet piece FXm. Set to a length in the range of ⁇ 5 mm.
- the storage unit functionally includes a first alignment device 11, a first dust collector 12, a first bonding device 13, a first detection device 41, a first cutting device 31, a reversing device 15, and a first.
- a plurality of inspection points CP are set in the width direction of the optical member sheet FX, and the direction of the optical axis of the optical member sheet FX is detected at each inspection point CP.
- the timing for detecting the optical axis may be at the time of manufacturing the original fabric roll R1, or may be until the optical member sheet FX is unwound from the original fabric roll R1 and half cut.
- Data in the optical axis direction of the optical member sheet FX is stored in a storage device (not shown) in association with the position of the optical member sheet FX (position in the longitudinal direction and position in the width direction of the optical member sheet FX).
- the control device 40 acquires the optical axis data (inspection data of the in-plane distribution of the optical axis) of each inspection point CP from the storage device, and the optical member sheet FX (by the cut line CL) of the portion where the sheet piece FXm is cut out. The direction of the average optical axis of the sectioned area) is detected.
- the direction of the average optical axis of the optical member sheet FX detected by the above method makes a desired angle with respect to the long side or the short side of the display region P4 of the liquid crystal panel P.
- the bonding position (relative bonding position) of the sheet piece FXm is determined. For example, when the direction of the optical axis of the optical member 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 specifications, the average optical axis of the optical member sheet FX is set.
- the sheet piece FXm is bonded to the liquid crystal panel P so that the direction is 90 ° with respect to the long side or the short side of the display region P4.
- the above-described cutting devices 31 and 32 detect the outer peripheral edge of the display area P4 of the liquid crystal panel P by a detection unit such as a camera, and the sheet piece FXm bonded to the liquid crystal panel P is along the outer peripheral edge of the display area P4. Cut endlessly.
- the outer peripheral edge of the display area P4 is detected by imaging the edge of the liquid crystal panel P, the alignment mark provided on the liquid crystal panel P, or the outermost edge of the black matrix provided in the display area P4.
- a frame portion G (see FIG. 3) having a predetermined width for arranging a sealant or the like for bonding the first and second substrates of the liquid crystal panel P is provided.
- the sheet pieces FXm are cut (cut line: WCL) by the cutting devices 31 and 32.
- laser cutting is performed by the cutting devices 31 and 32 within the width of the frame portion G.
- the cut end t may swell or wave due to thermal deformation. For this reason, when the optical member sheet FZ after laser cutting is bonded to an optical display component, bonding failure such as air mixing or distortion is likely to occur in the optical member sheet FZ.
- the cut end t of the sheet piece FXm is a liquid crystal. Backed up on the glass surface of panel P. Therefore, the cut end t of the sheet piece FXm does not bulge, undulate, or the like, and since it is after bonding to the liquid crystal panel P, bonding failure cannot occur.
- the deflection width (tolerance) of the cutting line of the laser processing machine is smaller than that of the cutting blade. Therefore, in this embodiment, compared with the case where the optical member sheet FX is cut using a cutting blade, the width of the frame portion G can be reduced, and the liquid crystal panel P can be reduced in size and / or the display area P4. Larger size is possible. This is effective for application to high-function mobile devices that require expansion of the display screen while the size of the housing is limited, such as smartphones and tablet terminals in recent years.
- the optical member sheet FX When the optical member sheet FX is cut into a sheet piece that matches the display area P4 of the liquid crystal panel P and then bonded to the liquid crystal panel P, the dimensional tolerances of the sheet piece and the liquid crystal panel P, and their relative bonding positions Therefore, it becomes difficult to reduce the width of the frame portion G of the liquid crystal panel P (it becomes difficult to enlarge the display area).
- a sheet piece FXm of the optical member sheet FX having a size larger than the display area P4 of the liquid crystal panel P is cut out from the optical member sheet FX, and the cut out sheet piece FXm is pasted on the liquid crystal panel P and then aligned with the display area P4. Therefore, only the run-out tolerance of the cutting line needs to be considered, and the tolerance of the width of the frame G can be reduced ( ⁇ 0.1 mm or less). Also in this respect, the width of the frame part G of the liquid crystal panel P can be reduced (the display area can be enlarged).
- the force at the time of cutting is not input to the liquid crystal panel P, and the edge of the substrate of the liquid crystal panel P is less likely to be cracked or chipped. Durability is improved. Similarly, since there is no contact with the liquid crystal panel P, there is little damage to the electrical component mounting portion.
- the manufacturing apparatus of the optical member bonding body which concerns on this embodiment is a manufacturing apparatus of 2nd optical member bonding body PA2 formed by bonding optical member F11, F12 to liquid crystal panel P, Prior to bonding the sheet pieces F1m and F2m to the liquid crystal panel P, the liquid crystal panels P1 and F2m are bonded to the liquid crystal panel P and the sheet pieces F1m and F2m larger than the display area P4. Based on the inspection data in the optical axis direction of P, the control device 40 that determines the relative bonding positions of the liquid crystal panel P and the sheet pieces F1m and F2m, respectively, and the sheet pieces F1m and F2m on the liquid crystal panel P, respectively.
- Alignment devices 11 and 20 that align the liquid crystal panel P and the sheet pieces F1m and F2m, respectively, based on the relative bonding position determined by the control device 40 before bonding, and the sheet on the liquid crystal panel P After the pieces F1m and F2m are bonded together, the liquid crystal panel P and the sheet pieces F1m and F2
- the cutting device 31, 32 which cuts off the portion corresponding to the bonding surface and the excess portion outside thereof and cuts out the optical members F11, F12 having a size corresponding to the bonding surface from the sheet pieces F1m, F2m, respectively. And.
- detection devices 41 and 42 for detecting outer peripheral edges of the bonding surfaces of the liquid crystal panel P and the sheet pieces F1m and F2m, respectively.
- the cutting devices 31 and 32 include the sheet pieces F1m and F2m along the outer peripheral edge of the bonding surface between the liquid crystal panel P and the sheet pieces F1m and F2m detected by the detection devices 41 and 42, respectively. Are respectively cut.
- the control device 40 checks the optical axis direction inspection data of the liquid crystal panel P and the optical axis direction inspection of the sheet pieces F1m and F2m before bonding the sheet pieces F1m and F2m to the liquid crystal panel P, respectively. Based on both of the data, the relative bonding positions of the liquid crystal panel P and the sheet pieces F1m and F2m are respectively determined.
- the liquid crystal panel P and the sheet piece FXm are bonded after alignment based on the inspection data in the optical axis direction of the liquid crystal panel P, variation occurs in the optical axis direction for each liquid crystal panel P.
- the liquid crystal panel P can be aligned and bonded in accordance with this optical axis direction.
- the precision of the optical axis direction of the liquid crystal panel P with respect to the sheet piece FXm increases, and the color and contrast of the optical display device can be increased.
- it can respond also to manufacture of the optical member bonding body containing liquid crystal panel P which has arbitrary optical axis directions.
- the optical axis direction changes according to the position of optical member sheet
- the liquid crystal panel P can be aligned and bonded in accordance with the optical axis direction.
- the precision of the optical axis direction of the sheet piece FXm with respect to the liquid crystal panel P increases, and it is possible to increase the color and contrast of the optical display device.
- it can respond also to manufacture of the optical member bonding body containing the optical member F1X which has arbitrary optical axis directions.
- the sheet pieces F1m and F2m are aligned with the optical axis direction. Then, the liquid crystal panel P can be aligned and bonded. Thereby, the precision of the optical axis direction of the optical members F11 and F12 with respect to the liquid crystal panel P can be improved, and the color and contrast of the optical display device can be increased.
- the cutting devices 31 and 32 laser cut the sheet pieces F1m and F2m, so that the force is not exerted on the liquid crystal panel P as compared with the case where the sheet pieces F1m and F2m are cut with a blade, and cracks and chips occur. It becomes difficult, and the stable durability of the liquid crystal panel P can be obtained. Moreover, generation
- the manufacturing method of the optical member bonding body in this embodiment is a manufacturing method of 2nd optical member bonding body PA2 formed by bonding optical member F11, F12 to liquid crystal panel P, Comprising: A bonding step of bonding sheet pieces F1m and F2m larger than the display area P4, and inspection data in the optical axis direction of the liquid crystal panel P before bonding the sheet pieces F1m and F2m to the liquid crystal panel P, respectively.
- a bonding step of bonding sheet pieces F1m and F2m larger than the display area P4
- inspection data in the optical axis direction of the liquid crystal panel P before bonding the sheet pieces F1m and F2m to the liquid crystal panel P, respectively.
- the alignment between the liquid crystal panel P and the sheet pieces F1m and F2m Based on the relative bonding position determined in the relative bonding position determination step, the alignment between the liquid crystal panel P and the sheet pieces F1m and F2m. And aligning the sheet pieces F1m and F2m to the liquid crystal panel P, respectively, and a portion corresponding to the bonding surface of the liquid crystal panel P and the sheet pieces F1m and F2m and the outside thereof A cutting step of cutting off the excess portion and cutting out the optical members F11 and F12 having a size corresponding to the bonding surface from the sheet pieces F1m and F2m.
- the cutting step the sheet pieces F1m and F2m are cut along the outer peripheral edges of the bonding surfaces of the liquid crystal panel P and the sheet pieces F1m and F2m detected in the detection step.
- the relative bonding position determination step the inspection data in the optical axis direction of the liquid crystal panel P and the optical axis of the sheet pieces F1m and F2m before the sheet pieces F1m and F2m are bonded to the liquid crystal panel P, respectively. Relative bonding positions between the liquid crystal panel P and the sheet pieces F1m and F2m are respectively determined based on both direction inspection data.
- the outer periphery of the bonding surface is detected for every some liquid crystal panel P using a detection apparatus, and it pastes for every liquid crystal panel P based on the detected outer periphery.
- the said embodiment gave and demonstrated the structure which performs the bonding process with liquid crystal panel P and the optical member F1X (or sheet piece FXm) with the pinching roll 23 as a structure of the bonding apparatuses 13 and 17, Not limited to this.
- the bonding apparatus once bonds the optical member F1X (or the sheet piece FXm) peeled from the separator to a bonding portion such as a bonding head or a bonding drum that is a transfer body, and the bonding portion is a liquid crystal panel.
- the optical member F1X (or sheet piece FXm) that has been aligned with respect to P and stuck to the bonding portion may be bonded to the liquid crystal panel P.
- the roll-to-panel method in which the optical member sheet unwound from the original fabric roll is bonded to the optical display component while being cut into a predetermined size has been described, but the present invention is not limited thereto.
- the present invention can also be applied to a chip-to-panel system in which an optical member cut into a single sheet is bonded to an optical display component.
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Abstract
Description
本願は、2013年8月20日に、日本に出願された特願2013-170653号に基づき優先権を主張し、その内容をここに援用する。
(1)すなわち、本発明の第一の光学部材貼合体の製造装置は、光学表示部品の光学軸方向の検査データに基づき、前記光学表示部品に対する光学部材の相対貼合位置を決定する制御装置と、前記決定された相対貼合位置に基づき、前記光学表示部品と前記光学部材とのアライメントを行うアライメント装置と、前記光学表示部品に前記光学部材を貼り合わせる貼合装置と、を備える。
以下の全ての図面において、図面を見やすくするため、各構成要素の寸法や比率などは適宜異なる。また、以下の説明及び図面中、同一又は相当する要素には同一の符号を付し、重複する説明は省略する。
以下、本発明の第一実施形態に係る光学部材貼合体の製造装置であるフィルム貼合システム1について図面を参照して説明する。
図1は、本実施形態のフィルム貼合システム1の概略構成を示す図である。
フィルム貼合システム1は、例えば液晶パネルや有機ELパネルといったパネル状の光学表示部品に、偏光フィルム、反射防止フィルム、及び/又は光拡散フィルムといったフィルム状の光学部材を貼合するものである。本実施形態では、一例として、液晶パネル(光学表示部品)の両面に偏光フィルム(光学部材)がそれぞれ貼合されることにより液晶表示装置(光学部材貼合体)が製造される構成を挙げて説明する。
図2に示すように、液晶パネルPは、平面視で長方形状をなす第一基板P1と、第一基板P1に対向して配置される比較的小形の長方形状をなす第二基板P2と、第一基板P1と第二基板P2との間に封入された液晶層P3とを備える。液晶パネルPは、平面視で第一基板P1の外形状に沿う長方形状をなし、平面視で液晶層P3の外周の内側に収まる領域を表示領域P4とする。
図3に示すように、液晶パネルPの表裏面には、長尺帯状の第一光学部材シートF1及び第二光学部材シートF2(図1参照、以下、光学部材シートFXと総称することがある。)をそれぞれ切断することにより形成された第一光学部材F11及び第二光学部材F12(以下、光学部材F1Xと総称することがある。)が貼合される。本実施形態では、液晶パネルPのバックライト側及び表示面側の両面には、偏光フィルムとしての第一光学部材F11及び第二光学部材F12がそれぞれ貼合される。
図4に示すように、光学部材シートFXは、フィルム状の光学部材本体F1aと、光学部材本体F1aの一方の面(図4では上面)に設けられた粘着層F2aと、粘着層F2aを介して光学部材本体F1aの一方の面に分離可能に積層されたセパレータF3aと、光学部材本体F1aの他方の面(図4では下面)に積層された表面保護フィルムF4aと、を有する。光学部材本体F1aは偏光フィルムとして機能し、液晶パネルPの表示領域P4の全域とその周辺領域とにわたって貼合される。尚、図示都合上、図4の各層のハッチングは略す。
図1に示すように、本実施形態のフィルム貼合システム1は、図中右側の液晶パネルPの搬送方向上流側(+X方向側)から図中左側の液晶パネルPの搬送方向下流側(-X方向側)に至り、液晶パネルPを水平状態で搬送する駆動式のローラコンベア5を備えている。
RE-100が測定可能な試料(液晶パネルP)サイズは、10mm×10mm~100mm×100mmである。RETSが測定可能な試料サイズは、20mm×20mm~であり、2000mm×2000mm以上の大型パネルにも対応可能である。
液晶パネルPの光学軸方向を測定する際、ノーマリーブラックの場合には、液晶駆動をさせる必要がない。一方、ノーマリーホワイトの場合には、液晶駆動にて黒表示となるが、液晶駆動をさせなくても黒表示時の光学軸方向を計算できる。例えば、IPS方式の場合、液晶分子が基板と平行な面内で90°回転する。IPS方式の場合には、水平配向のため、電圧無印加で光学軸方向を測定できる。
本実施形態においては、IPS方式の場合の光学軸方向の測定方法を挙げて説明したが、VA方式等の他の方式についても、本発明を適用可能である。
これに限らず、上記光学軸測定装置を第一アライメント装置11よりもパネル搬送上流側に組み込んで、液晶パネルPの光学軸方向をライン内で予め測定してもよい。
光学部材シートFXの幅方向に複数の検査ポイントを設定し、各検査ポイントにおいて光学部材シートFXの光学軸の方向を検出する。光学軸を検出するタイミングは、原反ロールR1の製造時でもよく、原反ロールR1から光学部材シートFXを巻き出してハーフカットするまでの間でもよい。光学部材シートFXの光学軸方向のデータは、光学部材シートFXの位置(光学部材シートFXの長手方向の位置および幅方向の位置)と関連付けられて図示略の記憶装置に記憶される。
搬送装置22は、光学部材シートFXが巻回された原反ロールR1から光学部材シートFXを巻き出しつつ光学部材シートFXをその長手方向に沿って搬送する。搬送装置22は、セパレータF3aをキャリアとして貼合シートF5を搬送する。搬送装置22は、ロール保持部22aと、複数のガイドローラ22bと、切断装置22cと、ナイフエッジ22dと、巻き取り部22eと、を有する。
複数のガイドローラ22bは、原反ロールR1から巻き出した光学部材シートFXを所定の搬送経路に沿って案内するべく光学部材シートFXを巻きかける。
切断装置22cは、搬送経路上の光学部材シートFXにハーフカットを施す。
ナイフエッジ22dは、ハーフカットを施した光学部材シートFXを鋭角に巻きかけてセパレータF3aから貼合シートF5を分離させつつこの貼合シートF5を貼合位置に供給する。
巻き取り部22eは、ナイフエッジ22dを経て単独となったセパレータF3aを巻き取るセパレータロールR2を保持する。
図5に示すように、切断装置22cは、光学部材シートFXが所定長さ繰り出された際、光学部材シートFXの長手方向と直交する幅方向の全幅にわたって、光学部材シートFXの厚さ方向の一部を切断するハーフカットを行う。本実施形態の切断装置22cは、光学部材シートFXに対してセパレータF3aとは反対側から光学部材シートFXに向かって進退可能に設けられている。
これに限らず、液晶パネルP(第一基板P1)に対して第一光学部材F11が斜めに貼合されても、上記液晶パネルPの光学軸方向と光学部材F1Xの光学軸方向との配置が許容範囲内であればよい。また、第一光学部材F11が液晶パネルPの表示領域P4よりも若干大きめに貼合されてもよい。例えば、若干大きめのサイズとしては、液晶パネルP(第一基板P1)の各辺においてブラックマトリクスよりも500μm程度外側まで許容される。
これに限らず、液晶パネルP(第二基板P2)に対して第二光学部材F12が斜めに貼合されても、上記液晶パネルPの光学軸方向と光学部材F1Xの光学軸方向との配置が許容範囲内であればよい。また、第二光学部材F12が液晶パネルPの表示領域P4よりも若干大きめに貼合されてもよい。例えば、若干大きめのサイズとしては、液晶パネルP(第二基板P2)の各辺においてブラックマトリクスよりも500μm程度外側まで許容される。
本実施形態の制御装置40は、コンピュータシステムの外部の装置との通信を実行可能なインターフェースを含む。制御装置40には、入力信号を入力可能な入力装置が接続されていてもよい。上記の入力装置は、キーボード、マウス等の入力機器、あるいはコンピュータシステムの外部の装置からのデータを入力可能な通信装置等を含む。制御装置40は、フィルム貼合システム1の各部の動作状況を示す液晶表示ディスプレイ等の表示装置を含んでいてもよいし、表示装置と接続されていてもよい。
記憶部に記録されているプログラムを含む各種情報は、制御装置40の演算処理部が読み取り可能である。制御装置40は、フィルム貼合システム1の各部の制御に要する各種処理を実行するASIC等の論理回路を含んでいてもよい。
以下、本発明の第二実施形態に係るフィルム貼合システム2の構成について説明する。図6は、本実施形態のフィルム貼合システム2の概略構成を示す図である。本実施形態において、第一実施形態と共通する構成要素については、同じ符号を付し、その詳細な説明は省略する。
図11においては、便宜上、第一シート片貼合体PS1の第一シート片F1mが貼合された側を上側とし、第一検出装置41の構成を上下反転して示している。
照明光源44と撮像装置43とは、第一貼合面SA1の端縁EDに沿って移動可能に配置されていてもよい。この場合、照明光源44と撮像装置43とがそれぞれ1つずつ設けられていればよい。また、これにより、照明光源44と撮像装置43とを、第一貼合面SA1の端縁EDを撮像しやすい位置に移動させることができる。
また、照明光源44の光軸と撮像装置43の撮像面43aの法線とが若干斜めに交差していてもよい。
前記液晶パネルPにその表示領域P4よりも大きいシート片F1m,F2mをそれぞれ貼り合わせる貼合装置13,17と、前記液晶パネルPに前記シート片F1m,F2mをそれぞれ貼り合わせる前に、前記液晶パネルPの光学軸方向の検査データに基づき、前記液晶パネルPと前記シート片F1m,F2mとの相対貼合位置をそれぞれ決定する制御装置40と、前記液晶パネルPに前記シート片F1m,F2mをそれぞれ貼り合わせる前に、前記制御装置40が決定した相対貼合位置に基づき、前記液晶パネルPと前記シート片F1m,F2mとのアライメントをそれぞれ行うアライメント装置11,20と、前記液晶パネルPに前記シート片F1m,F2mをそれぞれ貼り合わせた後に、前記液晶パネルPと前記シート片F1m,F2mとの貼合面に対応する部分とその外側の余剰部分とを切り離し、前記シート片F1m,F2mから前記貼合面に対応する大きさの前記光学部材F11,F12をそれぞれ切り出す切断装置31,32と、を含むものである。さらに、前記液晶パネルPに前記シート片F1m,F2mをそれぞれ貼り合わせた後に、前記液晶パネルPと前記シート片F1m,F2mとの前記貼合面の外周縁をそれぞれ検出する検出装置41,42を含み、前記切断装置31,32は、前記検出装置41,42がそれぞれ検出した前記液晶パネルPと前記シート片F1m,F2mとの前記貼合面の外周縁に沿って、前記シート片F1m,F2mをそれぞれ切断するものである。また、前記制御装置40は、前記液晶パネルPに前記シート片F1m,F2mをそれぞれ貼り合わせる前に、前記液晶パネルPの光学軸方向の検査データと前記シート片F1m,F2mの光学軸方向の検査データの双方に基づき、前記液晶パネルPと前記シート片F1m,F2mとの相対貼合位置をそれぞれ決定するものである。
11 第一アライメント装置
12 第一集塵装置
13 第一貼合装置(貼合装置)
15 反転装置
16 第二集塵装置
17 第二貼合装置(貼合装置)
20 第二アライメント装置
22 搬送装置
31 第一切断装置(切断装置)
32 第二切断装置(切断装置)
40 制御装置
41 第一検出装置(検出装置)
42 第二検出装置(検出装置)
43 撮像装置
F1 第一光学部材シート
F2 第二光学部材シート
F11 第一光学部材
F12 第二光学部材
F1a 光学部材本体
F2a 粘着層
F3a セパレータ
F4a 表面保護フィルム
F5 貼合シート
F6 偏光子
F7 第一フィルム
F8 第二フィルム
F1m 第一シート片
F2m 第二シート片
F1X 光学部材
FX 光学部材シート
FXm シート片
P 液晶パネル(光学表示部品)
P1 第一基板P1
P2 第二基板P1
P3 液晶層
P4 表示領域
PA1 第一光学部材貼合体
PA2 第二光学部材貼合体
PS1 第一シート片貼合体
PS2 第二シート片貼合体
SA1 第一貼合面(貼合面)
Claims (10)
- 光学表示部品の光学軸方向の検査データに基づき、前記光学表示部品に対する光学部材の相対貼合位置を決定する制御装置と、
前記決定された相対貼合位置に基づき、前記光学表示部品と前記光学部材とのアライメントを行うアライメント装置と、
前記光学表示部品に前記光学部材を貼り合わせる貼合装置と、
を備える光学部材貼合体の製造装置。 - 前記制御装置は、前記光学表示部品の光学軸方向の検査データと前記光学部材の光学軸方向の検査データの双方に基づき、前記相対貼合位置を決定する請求項1に記載の光学部材貼合体の製造装置。
- 光学表示部品の光学軸方向の検査データに基づき、前記光学表示部品に対する、前記光学表示部品の表示領域よりも大きいシート片の相対貼合位置を決定する制御装置と、
前記決定された相対貼合位置に基づき、前記光学表示部品と前記シート片とのアライメントを行うアライメント装置と、
前記光学表示部品に前記シート片を貼り合わせる貼合装置と、
前記光学表示部品と前記シート片との貼合体から貼合面に対応する部分の外側の余剰部分を切り離す切断装置と、
を備える光学部材貼合体の製造装置。 - 前記光学表示部品に前記シート片を貼り合わせた後に、平面視で前記光学表示部品を含む画像を撮像する撮像装置を備え、
前記切断装置は、前記画像に基づいて、前記シート片を切断する請求項3に記載の光学部材貼合体の製造装置。 - 前記制御装置は、前記光学表示部品の光学軸方向の検査データと前記シート片の光学軸方向の検査データの双方に基づき、前記光学表示部品に対する前記シート片の相対貼合位置を決定する請求項3または4に記載の光学部材貼合体の製造装置。
- 光学表示部品の光学軸方向の検査データに基づき、前記光学表示部品に対する光学部材の相対貼合位置を決定する相対貼合位置決定工程と、
前記決定された相対貼合位置に基づき、前記光学表示部品と前記光学部材とのアライメントを行うアライメント工程と、
前記光学表示部品に前記光学部材を貼り合わせる貼合工程と、
を含む光学部材貼合体の製造方法。 - 前記相対貼合位置決定工程では、前記光学表示部品の光学軸方向の検査データと前記光学部材の光学軸方向の検査データの双方に基づき、前記光学表示部品に対する前記光学部材の相対貼合位置を決定する請求項6に記載の光学部材貼合体の製造方法。
- 光学表示部品の光学軸方向の検査データに基づき、前記光学表示部品に対する、前記光学表示部品の表示領域よりも大きいシート片の相対貼合位置を決定する相対貼合位置決定工程と、
前記決定した相対貼合位置に基づき、前記光学表示部品と前記シート片とのアライメントを行うアライメント工程と、
前記光学表示部品に前記シート片を貼り合わせる貼合工程と、
前記光学表示部品と前記シート片との貼合体から貼合面に対応する部分の外側の余剰部分を切り離す切断工程と、
を備える光学部材貼合体の製造方法。 - 前記光学表示部品に前記シート片を貼り合わせた後に、平面視で前記光学表示部品を含む画像を撮像する撮像工程を含み、
前記切断工程では、前記画像に基づいて、前記シート片を切断する請求項8に記載の光学部材貼合体の製造方法。 - 前記相対貼合位置決定工程では、前記光学表示部品の光学軸方向の検査データと前記シート片の光学軸方向の検査データの双方に基づき、前記光学表示部品に対する前記シート片の相対貼合位置を決定する請求項8または9に記載の光学部材貼合体の製造方法。
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JP2018525680A (ja) * | 2015-08-21 | 2018-09-06 | スリーエム イノベイティブ プロパティズ カンパニー | 光軸を有する光学フィルム、並びにそれを処理するシステム及び方法 |
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CN107879613A (zh) * | 2016-09-29 | 2018-04-06 | 天津金恩斯科技有限公司 | 一种玻璃切割装置 |
JP6379150B2 (ja) * | 2016-10-18 | 2018-08-22 | 日東電工株式会社 | 光学的表示ユニットの製造装置及び製造方法 |
JP7012572B2 (ja) * | 2017-04-26 | 2022-01-28 | 住友化学株式会社 | 搬送装置および積層体の製造方法 |
JP6356891B1 (ja) * | 2017-09-28 | 2018-07-11 | 日東電工株式会社 | 光学的表示装置の積層体を製造する方法および装置 |
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JP2018525680A (ja) * | 2015-08-21 | 2018-09-06 | スリーエム イノベイティブ プロパティズ カンパニー | 光軸を有する光学フィルム、並びにそれを処理するシステム及び方法 |
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JP2019139239A (ja) * | 2015-08-21 | 2019-08-22 | スリーエム イノベイティブ プロパティズ カンパニー | 光軸を有する光学フィルム、並びにそれを処理するシステム及び方法 |
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JP2015040914A (ja) | 2015-03-02 |
JP6526940B2 (ja) | 2019-06-05 |
CN105474292A (zh) | 2016-04-06 |
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