WO2014109198A1 - 光学表示デバイスの製造装置および光学表示デバイスの生産システム - Google Patents

光学表示デバイスの製造装置および光学表示デバイスの生産システム Download PDF

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Publication number
WO2014109198A1
WO2014109198A1 PCT/JP2013/084033 JP2013084033W WO2014109198A1 WO 2014109198 A1 WO2014109198 A1 WO 2014109198A1 JP 2013084033 W JP2013084033 W JP 2013084033W WO 2014109198 A1 WO2014109198 A1 WO 2014109198A1
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WIPO (PCT)
Prior art keywords
optical member
optical display
optical
substrate
sheet
Prior art date
Application number
PCT/JP2013/084033
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English (en)
French (fr)
Japanese (ja)
Inventor
幹士 藤井
大充 田中
Original Assignee
住友化学株式会社
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Filing date
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Application filed by 住友化学株式会社 filed Critical 住友化学株式会社
Priority to JP2014556358A priority Critical patent/JP5828972B2/ja
Priority to CN201380065832.5A priority patent/CN104854502B/zh
Priority to KR1020157016145A priority patent/KR101993029B1/ko
Publication of WO2014109198A1 publication Critical patent/WO2014109198A1/ja

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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
    • G02F1/133351—Manufacturing of individual cells out of a plurality of cells, e.g. by dicing
    • 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
    • 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
    • G02F1/133354—Arrangements for aligning or assembling substrates

Definitions

  • the present invention relates to an optical display device manufacturing apparatus and an optical display device production system.
  • This application claims priority based on Japanese Patent Application No. 2013-002830 filed on January 10, 2013, the contents of which are incorporated herein by reference.
  • a mother panel is formed by sandwiching and bonding a liquid crystal layer between two mother glasses, and then the mother panel is divided into a plurality of liquid crystal panels (optical display components). ) Is used (so-called multi-chamfering).
  • the mother panel can be divided into a plurality of liquid crystal panels by, for example, imprinting a scribe line on the mother glass, then pressurizing and dividing along the scribe line (see, for example, Patent Document 1).
  • optical members such as a polarizing film, a retardation film, and a brightness enhancement film are formed on a sheet piece having a size including a surplus part that protrudes not only to the display area of the liquid crystal panel but also to the peripheral part (frame part) of the display area. It is pasted after being cut out. Thereby, the surplus part is arrange
  • optical display components have been studied to reduce the peripheral portion of the display area on the display surface to increase the display area and reduce the size of the device (hereinafter, the frame portion of the optical display component is reduced). This is sometimes referred to as “narrowing the frame”).
  • the optical member is cut into a sheet piece having a size that matches the shape of the liquid crystal panel in plan view, and the edge of the sheet piece is bonded to the outer periphery of the liquid crystal panel.
  • the outer periphery shape of a liquid crystal panel is detected, and the operation which cuts out a sheet piece in the magnitude
  • a method for detecting the outer shape it is conceivable to detect the four corners (corner portions) of the liquid crystal panel in a plan view and to make a rectangle connecting the four corners into the outer peripheral shape of the liquid crystal panel.
  • the liquid crystal panel is manufactured by multi-chamfering by the above-described method, a burr or a chip is likely to occur at the corners in a liquid crystal panel having a rectangular shape. Therefore, in the case of a liquid crystal panel manufactured by multi-chamfering, when detecting the outer peripheral shape of the liquid crystal panel, it is affected by burrs and chips, and an outer shape that is larger or smaller than the actual outer peripheral shape of the liquid crystal panel is detected. A sheet piece of the optical member that matches the actual outer peripheral shape of the liquid crystal panel cannot be cut out, and a defective optical display device is likely to occur.
  • An object of the present invention is to provide an optical display device manufacturing apparatus that can be processed. It is another object of the present invention to provide an optical display device production system that has such a manufacturing apparatus and that can easily produce a narrow frame optical display device.
  • An optical display device manufacturing apparatus is an optical display device manufacturing apparatus in which an optical member is bonded to an optical display component, and the optical display device has a substrate surface of the optical display component.
  • An imaging device that captures an image including a corner portion of the substrate in a plan view of a laminate in which an optical member sheet wider than the surface is bonded; a display that the optical display component includes the optical member sheet A cutting device for separating the optical member that is a portion facing the region and a surplus portion outside the optical member; an approximate contour line that approximates the contour line in plan view of the substrate is obtained based on the image And a control device that controls the cutting device so as to cut the optical member sheet based on the approximate contour line, and the control device uses the corner of the image of the substrate included in the image.
  • a virtual point corresponding to a part is set, the virtual point is set for each of the plurality of corners of the substrate, and a figure obtained by connecting the virtual points with line segments is obtained as the approximate contour line.
  • the “part facing the display area” is an area that is not less than the size of the display area and not more than the size of the outer shape of the optical display component, and avoids a functional part such as an electrical component mounting portion. Indicates the area. That is, the optical member may be formed by being separated from the surplus portion along the outer peripheral edge of the optical display component, and is formed by being separated from the surplus portion at the frame portion that is the peripheral portion of the display area. It may be a thing.
  • cutting the optical member sheet based on the approximate contour line means a region along the calculated approximate contour line or the size of the display region and inside the approximate contour line.
  • seat is shown. That is, the cutting position of the optical member sheet may be a position along the approximate contour line, or may be a position overlapping with a frame portion that is a peripheral portion of the display area.
  • an illumination device that illuminates the multilayer body from the side opposite to the imaging device across the multilayer body may be provided.
  • control device detects the plurality of points overlapping each of the two sides of the substrate except for a predetermined region in the vicinity of the corner portion. May be.
  • An optical display device production system is an optical display device production system in which an optical member is bonded to an optical display component, and the optical display component is conveyed on a line.
  • An optical member sheet wider than the surface is bonded to the surface of the sheet to form a laminate including the optical display component and the optical member sheet; and the optical member sheet included in the laminate.
  • an apparatus for manufacturing an optical display device that detects the outer peripheral shape of a liquid crystal panel that has been freed from the influence of burrs and chips at the peripheral edge and can process an optical member in accordance with the outer peripheral shape.
  • an optical display device production system that has such a manufacturing apparatus and that can easily produce a narrow frame optical display device.
  • FIG. 1 is a schematic sectional view showing an optical display device production system 100 (hereinafter, production system 100).
  • the production system 100 cuts the sheet piece FA by bonding the sheet piece (optical member sheet) FA to the liquid crystal panel (optical display component) P conveyed on the line, and the optical member.
  • the cutting unit 20 corresponds to the optical display device manufacturing apparatus according to the present embodiment.
  • the bonding unit 10 includes a transport device 11 that transports the belt-shaped optical member sheet F1 in the longitudinal direction of the optical member sheet F1, a cutting device 12 that cuts out the sheet piece FA from the optical member sheet F1, and the sheet piece FA as a liquid crystal panel. And a bonding device 13 for bonding to the upper surface of P.
  • FIG. 2 is a schematic diagram showing the optical member sheet F1.
  • the optical member sheet F ⁇ b> 1 is a belt-shaped optical member original fabric F ⁇ b> 2 from which a sheet piece FA to be bonded to the liquid crystal panel P is obtained by cutting to a unit length, and an optical member original fabric F ⁇ b> 2.
  • a separator sheet F3 provided in a stacked manner. The separator sheet F3 is used as a carrier for conveying the optical member original fabric F2.
  • An adhesive layer F4 is provided between the optical member original fabric F2 and the separator sheet F3.
  • the optical member original fabric F2 is cut into a unit length (sheet piece FA unit) along a cut line C formed over the entire width in the width direction of the optical member sheet F1 together with the adhesive layer F4. Become.
  • the sheet piece FA is peeled from the separator sheet F3 and bonded to the upper surface of the liquid crystal panel P as will be described later.
  • the conveying device 11 holds the original roll R1 around which the belt-shaped optical member sheet F1 is wound, and also feeds the optical member sheet F1 along the longitudinal direction of the optical member sheet F1. And a winding unit 112 that holds the separator roll R2 that winds up the separator sheet F3 that has been separated from the sheet piece FA.
  • the conveying apparatus 11 has a some guide roller which winds the optical member sheet
  • the optical member sheet F1 has a width that is wider than the substrate on the side on which the sheet pieces of the liquid crystal panel P are bonded in the horizontal direction (sheet width direction) orthogonal to the conveying direction of the optical member sheet F1.
  • the unwinding unit 111 and the winding unit 112 are driven in synchronization with each other, for example. Thereby, the operation of the unwinding unit 111 that feeds the optical member sheet F1 in the transport direction and the operation of the winding unit 112 that winds up the separator sheet F3 are synchronized, and the slack of the optical member sheet F1 and the separator sheet F3 is suppressed. To do.
  • the unwinding unit 111 and the winding unit 112 convey the optical member sheet F1 unwound from the original fabric roll R1 toward the cutting device 12 side with the optical member original fabric F2 side facing.
  • the cutting device 12 is disposed facing the optical member original fabric F2 in the process of conveying the optical member sheet F1.
  • the cutting device 12 includes, for example, a circular cutting blade, and is configured to be movable in the set cutting direction of the optical member sheet F1.
  • the cutting device 12 cuts the optical member original fabric F2 included in the optical member sheet F1 over the entire width in the sheet width direction of the optical member sheet F1 every time the optical member sheet F1 is fed out by a preset unit length. .
  • a cut line C is formed in the cut optical member sheet F1 over the entire width of the optical member original fabric F2 in the sheet width direction.
  • the range defined by the cut line C is the sheet piece FA, and the cutting device 12 forms the sheet piece FA on the separator sheet F3.
  • the cutting device 12 advances and retracts the cutting blade so that a predetermined thickness remains on the separator sheet F3. And half-cut to the vicinity of the interface between the adhesive layer F4 and the separator sheet F3. In addition, you may burn out using the apparatus which inject
  • the size and shape of the sheet piece FA formed by the cutting device 12 can be arbitrarily set according to the shape of the optical member, the setting direction of the optical axis in the optical member, and the like.
  • the optical member sheet F1 is half-cut in a direction intersecting with the longitudinal direction of the optical member sheet F1, and a cut line C is formed in the optical member sheet F1 with a predetermined interval, thereby forming a sheet piece FA. Have gained.
  • the laminating apparatus 13 winds the optical member sheet F1 at an acute angle and separates the sheet piece FA from the separator sheet F3, holds the sheet piece FA, and transports and pastes it onto the liquid crystal panel P. It has the bonding head 132 to combine, and the mounting base 133 by which liquid crystal panel P is mounted and the liquid crystal panel P and sheet piece FA are bonded.
  • the peeling portion 131 is positioned below the optical member sheet F1 that is conveyed substantially horizontally with the separator sheet F3 side downward in FIG. 1, and extends at least over the entire width of the optical member sheet F1 in the sheet width direction. .
  • An optical member sheet F1 after half cut is wound around the peeling portion 131 so that the separator sheet F3 side is in contact therewith.
  • the tip 131a of the peeling part 131 is formed at an acute angle in a sectional view.
  • the sheet piece FA is turned up and peeled from the separator sheet F3 starting from the cut line C formed by the above-described half cut.
  • the adhesive layer F4 formed between the sheet piece FA and the separator sheet F3 is peeled off from the separator sheet F3 together with the sheet piece FA. Therefore, in the sheet piece FA that peels from the separator sheet F3, the adhesive layer F4 is disposed on the lower surface.
  • the pasting head 132 has an arc-shaped holding surface 132a that is parallel to the sheet width direction and convex downward.
  • the holding surface 132a has, for example, a weaker adhesion force than the adhesive layer F4 of the sheet piece FA, and can repeatedly perform the adhesion and peeling of the sheet piece FA.
  • the bonding head 132 has a driving device (not shown), can move up and down by a predetermined amount above the peeling portion 131 (tip portion 131a) and above a mounting table 133 described later, and is mounted on the peeling portion 131. It can be appropriately moved between the table 133. Furthermore, the bonding head 132 can be translated (rotated) in both the forward and reverse directions around the normal line of the placement surface for horizontal position correction.
  • the pasting head 132 is configured to be tiltable along the curvature of the holding surface 132a around the axis along the sheet width direction of the optical member sheet F1. Tilt of the bonding head 132 is appropriately performed when the sheet piece FA is bonded and held, and when the bonded sheet piece FA is bonded to the liquid crystal panel P.
  • the mounting table 133 mounts the liquid crystal panel P, and can be translated and rotated for horizontal position correction.
  • the bonding unit 10 is disposed below the leading end of the peeling unit 131, and the first detection camera 141 that detects the leading end of the sheet piece FA on the downstream side of the sheet conveyance and the sheet that is stuck and held on the holding surface 132a. It has the 2nd detection camera 142 which images piece FA, and the 3rd detection camera 143 which images the liquid crystal panel P on the mounting base 133. It is also possible to use sensors in place of the detection cameras 141 to 143.
  • Such a bonding part 10 is driven as follows as a whole.
  • the transport device 11 temporarily stops, and the cutting device 12 half-cuts the optical member sheet F1. That is, the distance along the sheet conveyance path between the detection position by the first detection camera 141 (the optical axis extension position of the first detection camera 141) and the cutting position by the cutting device 12 (the cutting blade advance / retreat position of the cutting device 12) is This corresponds to the length of the sheet piece FA.
  • the cutting device 12 is movable along the sheet conveyance path, and the distance along the sheet conveyance path between the detection position by the first detection camera 141 and the cutting position by the cutting device 12 can be changed. it can. For example, when the length of the created sheet piece FA is different from the preset standard of the sheet piece FA, the deviation is corrected by the movement of the cutting device 12, and the sheet piece FA having a predetermined length is formed. can do. Further, the sheet pieces FA having different lengths can be formed by the movement of the cutting device 12.
  • the bonding head 132 is tilted so that the curved one end 132x of the holding surface 132a is on the lower side (inclined to the right in FIG. 1; indicated by the symbol ⁇ ).
  • the curved one end side 132x of the holding surface 132a is pressed from above, and the downstream end of the sheet piece FA at the leading end 131a is adhered to the holding surface 132a.
  • the connection between the bonding head 132 and the driving device is cut off so that the bonding head 132 can be tilted.
  • the bonding head 132 is arranged such that the curved other end side 132y of the holding surface 132a is on the lower side (in FIG. 1). Tilt to the left (indicated by the symbol ⁇ ) and tilt passively. Thereby, the whole sheet piece FA is stuck on the holding surface 132a.
  • the laminating head 132 holding the sheet piece FA moves above the mounting table 133.
  • the sheet piece FA held by the bonding head 132 is imaged by the second detection camera 142 when moving from above the peeling unit 131 to above the mounting table 133.
  • the captured image data is sent to a control device (not shown), and the holding posture of the sheet piece FA on the holding surface 132a of the bonding head 132 (the position in the horizontal direction, the rotation angle around the normal line of the holding surface 132a). Detected.
  • the liquid crystal panel P placed on the placing table 133 is imaged by the third detection camera 143.
  • the captured image data is sent to a control device (not shown), and the attitude of the liquid crystal panel P on the mounting table 133 (horizontal position, rotation around the normal of the upper surface of the mounting table on which the liquid crystal panel P is mounted) Angle) is detected.
  • the bonding head 132 and the mounting table 133 adjust the relative positions of the sheet piece FA and the liquid crystal panel P based on the detected position of the sheet piece FA and the liquid crystal panel P, respectively.
  • the bonding head 132 is actively tilted, for example, by the operation of a driving device, and a sheet piece is formed on the upper surface of the liquid crystal panel P mounted on the mounting table 133 along the curvature of the holding surface 132a. Press the FA and paste it securely.
  • the laminate S in which the sheet piece FA and the liquid crystal panel P are bonded is formed.
  • the relative positions of which are adjusted the bonding variation of the sheet piece FA is suppressed, and the accuracy of the optical axis direction of the sheet piece FA with respect to the liquid crystal panel P is improved.
  • the display device is enhanced in definition and contrast.
  • the first detection camera 141 may also detect a defect mark marked on the optical member original fabric F2 of the optical member sheet F1.
  • the defect mark is provided by using an ink jet apparatus or the like on the optical member original fabric F2 at the defect location found in the optical member sheet F1 when the original fabric roll R1 is manufactured.
  • the sheet piece FA in which the defect mark is detected is pasted on the pasting head 132, and is not pasted on the liquid crystal panel P, but is moved to a separately disposed pasting position and pasted on a waste material sheet or the like.
  • the cutting device 12 may be moved, cut shorter than the sheet piece FA that can be bonded to the liquid crystal panel P, and the portion including the defect mark may be cut and discarded.
  • the cutting unit 20 includes an imaging device 210 that captures an image of the stacked body S, an optical member F that is a portion facing the display area of the liquid crystal panel P, the sheet piece FA included in the stacked body S, and the optical member F.
  • a cutting device 220 that separates the excess portion FX on the outside and a control device 230 that controls the cutting device 220 based on an image captured by the imaging device 210 are provided.
  • it has the illuminating device 240 which illuminates the laminated body S from the opposite side to the imaging device 210 on both sides of the laminated body S.
  • FIG. 3A to 8 are explanatory diagrams for explaining the operation of the cutting unit 20.
  • FIG. 3A and 3B are schematic diagrams illustrating a state in which the stacked body S is imaged using the imaging device 210.
  • FIG. First as shown in FIG. 3A, a plurality of (four in the figure) imaging devices 210 are used to image the periphery of the corners of the liquid crystal panel P in the stacked body S.
  • the laminate S has a liquid crystal panel P and a sheet piece FA bonded to the liquid crystal panel P.
  • the liquid crystal panel P has a liquid crystal layer sandwiched between the counter substrate P1 and the element substrate P2. Further, in the liquid crystal panel P, the counter substrate P1 has a smaller area in plan view than the element substrate P2, and one end side of the element substrate P2 is exposed in plan view when both are overlapped. A terminal portion P4 is provided in the exposed region P3 of the element substrate P2.
  • FIG. 3B is a partial plan view of the liquid crystal panel P.
  • the liquid crystal panel P of this embodiment is manufactured by multi-chamfering. Therefore, as shown in FIG. 3B, burrs and chipping occur near the corners PA1 and PA2 of the counter substrate P1 (for example, corners C1 and C2 at both ends of the side PA) as compared to the central part PA3 of the side PA. It is not in shape. For example, in the case of a liquid crystal panel for a 4-inch display, the lengths of the vicinity PA1 and PA2 are about 5 mm empirically.
  • the sheet piece FA is bonded to the surface of the counter substrate P1.
  • the sheet piece FA has a rectangular shape in plan view, and has a larger plan view area than the counter substrate P1.
  • the imaging device 210 is used to image the imaging area AR including the corner of the counter substrate P1. At that time, using the illumination device 240 shown in FIG. Thereby, compared with the case where the laminated body S is illuminated from the same side as the imaging device 210, halation due to the reflected light generated in the sheet piece FA can be suppressed, and an image suitable for analysis described later can be captured.
  • the image data of the image captured by the imaging device 210 is input to the control device 230, and the next processing (image processing, calculation) is performed.
  • the second region is brighter than the first region in the captured image. Therefore, when the captured image is binarized, the first region becomes a bright region (white), the second region becomes a dark region (black), and the outline of the counter substrate P1 becomes clear as a light / dark boundary.
  • the threshold value of the gradation value at the time of binarization differs depending on the type of the sheet piece FA to be bonded, the structure of the liquid crystal panel P at the position to be imaged, etc. To set.
  • FIG. 4 is a schematic diagram of an image captured by the imaging device 210A in FIG. 3A.
  • the first area is indicated by a symbol AR1
  • the second area is indicated by a symbol AR2.
  • As the second process as shown in FIG. 4, based on the image data binarized in the first image process (hereinafter referred to as binarized data), it overlaps with the outline (side) of the counter substrate P1. The coordinates of a plurality of points D are detected.
  • an X axis with the upper left corner of the binarized data as the origin for example, an X axis with the right direction of the image as the + direction, and a Y axis with the down direction of the image as the + direction is set.
  • image data is appropriately selected in the image captured by the imaging device 210.
  • a process (trimming process) for cutting out an arbitrary area suitable for analysis from (or binarized data) may be performed, and the second process may be performed on the processed image.
  • the white (first The coordinates (x1, y1) of the point D can be obtained from the position (y1) in the Y direction of the position changing from black (second area) to black (second area).
  • a similar process is performed on each of two sides sandwiching the corner portion C1 of the counter substrate P1, and the coordinates of a plurality of points that overlap the side are detected on each side.
  • the number of points D to be detected is preferably large, but it is preferable to set the number so that the processing load of the arithmetic processing described later does not become excessive. For example, 100 points D may be detected on each of the two sides.
  • the counter substrate P1 is burred or chipped, and each side is not linear. Therefore, when the point D is detected, the vicinity PA1 (a predetermined range as the vicinity of the corner) is selected. ) Should not be included in the detection range.
  • the range of the neighborhood PA1 to be excluded from the detection range can be appropriately set according to a value obtained empirically or experimentally.
  • a straight line corresponding to the side overlapping the point D is approximated from the coordinates of the plurality of points D detected in the second process.
  • a generally known statistical method can be used. For example, an approximation method for obtaining a regression line (approximate line) using the least square method can be given.
  • the point D1 plotted on the + y side and the point D2 plotted on the -y side have a larger separation distance from the approximate line L1 than the other points D, and the calculation result of the approximate line L1 It is thought that it has had a big influence on. In such a case, the approximate straight line may be obtained again using the remaining points excluding the points D1 and D2.
  • a threshold is determined for the distance between the approximate line L1 and the point D (the absolute value of the Y coordinate with respect to the point D in FIG. 5), and the point D whose absolute value of the Y coordinate is larger than the threshold is excluded to obtain the approximate line again. It doesn't matter. About a threshold value, it can set suitably according to the value calculated
  • the approximate straight line obtained in this way is performed for two sides included in the captured image, and is further performed for each image captured by the four imaging devices 210.
  • intersections of approximate lines obtained for two sides included in one image are obtained as coordinates of virtual points corresponding to corners of the counter substrate P1 sandwiched between the two sides.
  • FIG. 6 is a diagram in which the virtual point CX obtained as the intersection of the two approximate straight lines L1 and L2 obtained in the fourth process is reflected in the image taken by the imaging device 210. Since the coordinates of each point D used to obtain the approximate lines L1 and L2 are known, the approximate lines L1 and L2 and the virtual point CX can be reflected on the image captured by the imaging device 210.
  • FIG. 7A to 7C are schematic diagrams showing a process of obtaining the approximate contour OL. Since the relative actual positions of the four imaging devices 210 are known, the relative positions of the imaging regions AR of the four imaging devices 210 are also known. Therefore, four virtual points when images (FIG. 7A) obtained by imaging the imaging area AR with the four imaging devices 210 in FIG. 3A are arranged in one common coordinate system (real (actual) coordinate system). The coordinates of CX can also be calculated, and the coordinates at which the virtual point CX is located when the stacked body S is viewed in plan can be obtained (FIG. 7B). The approximate contour OL can be obtained by connecting the four virtual points CX obtained in this way (FIG. 7C).
  • FIG. 8 is a schematic diagram showing how the sheet piece FA of the laminate S is cut using the cutting device 220.
  • the cutting device 220 a device that emits laser light LB can be used.
  • the control device 230 controls the cutting device 220, emits the laser beam LB based on the approximate contour OL obtained as described above, cuts the sheet piece FA, and separates the optical member F and the surplus portion FX. .
  • the sheet piece FA can be cut substantially along the edge of the counter substrate P1, and the optical member F can be suitably bonded to the narrowed liquid crystal panel P. Furthermore, if necessary, an optical display device in which a plurality of types of optical members are bonded to the liquid crystal panel P using the above-described apparatus and the optical members are bonded to the liquid crystal panel P can be obtained.
  • the optical display device manufacturing apparatus having the above-described configuration, it is possible to detect the outer peripheral shape of the liquid crystal panel without the influence of burrs and chips on the peripheral portion, and to process the optical member according to the outer peripheral shape. Become.
  • optical display device production system configured as described above, it is possible to easily produce a narrow frame optical display device.
  • the sheet piece FA is cut along the approximate contour line OL.
  • the present invention is not limited to this, and is, for example, a region inside the approximate contour OL and the frame of the liquid crystal panel P.
  • the sheet piece FA may be cut at a position overlapping the portion.
  • the control device 230 calculates a shape that is smaller than the shape drawn by the approximate contour as a true cut portion based on the calculated approximate contour, and then calculates the true cut portion.
  • the cutting device 220 may be controlled so as to cut the sheet piece FA along.
  • the shape showing the true cut portion may be a similar shape obtained by reducing the shape drawn by the approximate contour OL at a predetermined scale, and only a predetermined width from the shape drawn by the approximate contour OL.
  • the shape shrunk inward may be sufficient.
  • the approximate line is obtained again.
  • points that do not satisfy a predetermined criterion among points D may be excluded, and an approximate line may be obtained using the remaining points D.
  • liquid crystal panel P included in the stacked body S is illustrated and described as using the imaging device 210 as a plan view from the counter substrate P1 side, but the present invention is not limited thereto. .
  • the position of the end portion may be shifted between the upper and lower substrates constituting the liquid crystal panel P.
  • the liquid crystal panel P shown in FIG. 3A has such a shift and the edge of the element substrate P2 farther from the imaging device 210 than the edge of the counter substrate P1 close to the imaging device 210 is disposed outside, the imaging is performed.
  • the edge of the element substrate P2 is mistaken as the edge of the counter substrate P1, and it is difficult to obtain an approximate contour line along the contour line of the counter substrate P1.
  • the imaging device 210 may be inclined to the inside of the counter substrate P1 with respect to the normal line of the counter substrate P1, and an image of a corner portion of the counter substrate P1 may be captured from the inside of the counter substrate P1.
  • the corner of the element substrate P2 is captured in a state where it is hidden behind the corner of the counter substrate P1, so that the counter substrate P1 is not mistaken for the edge of the element substrate P2 as the edge of the counter substrate P1. It is possible to reliably capture the image.
  • the inclination angle of the imaging device 210 may be changed each time according to the amount of deviation between the counter substrate P1 and the element substrate P2 in each liquid crystal panel P. Further, when the maximum value of the deviation amount is empirically known, an inclination angle that can hide the corner portion of the element substrate P2 in the corner portion of the counter substrate P1 even if the maximum deviation occurs is obtained and obtained.
  • the imaging device 210 may be imaged by tilting the image by the tilt angle.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)
  • Polarising Elements (AREA)
PCT/JP2013/084033 2013-01-10 2013-12-19 光学表示デバイスの製造装置および光学表示デバイスの生産システム WO2014109198A1 (ja)

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JP2014556358A JP5828972B2 (ja) 2013-01-10 2013-12-19 光学表示デバイスの製造装置および光学表示デバイスの生産システム
CN201380065832.5A CN104854502B (zh) 2013-01-10 2013-12-19 光学显示设备的制造装置以及光学显示设备的生产系统
KR1020157016145A KR101993029B1 (ko) 2013-01-10 2013-12-19 광학 표시 디바이스의 제조 장치 및 광학 표시 디바이스의 생산 시스템

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107180924A (zh) * 2016-03-11 2017-09-19 三星显示有限公司 显示设备及其制造方法
CN108037599A (zh) * 2017-11-27 2018-05-15 江西合力泰科技有限公司 一种背光模组及检测方法

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP6037564B2 (ja) * 2013-06-24 2016-12-07 住友化学株式会社 光学表示デバイスの生産システム
CN106483692A (zh) * 2016-12-28 2017-03-08 武汉华星光电技术有限公司 通过焦点补正量测高断差膜层间的堆叠精度方法
KR102267731B1 (ko) * 2019-05-03 2021-06-22 주식회사 탑 엔지니어링 필름 절단 장치 및 필름 절단 방법
CN112433398B (zh) * 2020-11-12 2023-04-18 深圳创维－Rgb电子有限公司 液晶面板的贴合工艺方法及显示装置

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003107452A (ja) * 2001-09-17 2003-04-09 Internatl Business Mach Corp <Ibm> 液晶表示パネルの製造方法、液晶表示装置の製造方法、および、液晶表示装置の製造装置
JP2006259542A (ja) * 2005-03-18 2006-09-28 Sharp Corp 液晶表示パネルの製造方法
WO2010026768A1 (ja) * 2008-09-04 2010-03-11 芝浦メカトロニクス株式会社 貼合装置及びその制御方法
WO2013151035A1 (ja) * 2012-04-03 2013-10-10 住友化学株式会社 光学表示デバイスの生産システム

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH1190900A (ja) 1997-09-26 1999-04-06 Matsushita Electric Ind Co Ltd 液晶表示パネル分割方法と装置
JP4904198B2 (ja) * 2007-05-15 2012-03-28 リンテック株式会社 シート貼付装置、シート切断方法及びウエハ研削方法
WO2009128115A1 (ja) * 2008-04-15 2009-10-22 日東電工株式会社 光学フィルム積層体ロールならびにその製造方法および装置
JP4774123B1 (ja) * 2010-03-18 2011-09-14 住友化学株式会社 偏光板の貼合精度検査方法および貼合精度検査装置
JP4981944B2 (ja) * 2010-03-26 2012-07-25 三星ダイヤモンド工業株式会社 液晶表示装置用セルの製造方法

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2003107452A (ja) * 2001-09-17 2003-04-09 Internatl Business Mach Corp <Ibm> 液晶表示パネルの製造方法、液晶表示装置の製造方法、および、液晶表示装置の製造装置
JP2006259542A (ja) * 2005-03-18 2006-09-28 Sharp Corp 液晶表示パネルの製造方法
WO2010026768A1 (ja) * 2008-09-04 2010-03-11 芝浦メカトロニクス株式会社 貼合装置及びその制御方法
WO2013151035A1 (ja) * 2012-04-03 2013-10-10 住友化学株式会社 光学表示デバイスの生産システム

Cited By (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN107180924A (zh) * 2016-03-11 2017-09-19 三星显示有限公司 显示设备及其制造方法
EP3217211A3 (en) * 2016-03-11 2017-12-27 Samsung Display Co., Ltd. Display apparatus and method of manufacturing the same
US10483491B2 (en) 2016-03-11 2019-11-19 Samsung Display Co., Ltd. Display apparatus and method of manufacturing the same
CN107180924B (zh) * 2016-03-11 2021-07-02 三星显示有限公司 显示设备及其制造方法
US11139454B2 (en) 2016-03-11 2021-10-05 Samsung Display Co., Ltd. Display apparatus and method of manufacturing the same
CN108037599A (zh) * 2017-11-27 2018-05-15 江西合力泰科技有限公司 一种背光模组及检测方法
CN108037599B (zh) * 2017-11-27 2023-10-13 江西合力泰科技有限公司 一种背光模组及检测方法

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CN104854502B (zh) 2017-08-15
JPWO2014109198A1 (ja) 2017-01-19
TW201430444A (zh) 2014-08-01
KR101993029B1 (ko) 2019-06-25
TWI578060B (zh) 2017-04-11
CN104854502A (zh) 2015-08-19
KR20150104560A (ko) 2015-09-15
JP5828972B2 (ja) 2015-12-09

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