WO2012144169A1 - Polarizing plate attachment device and polarization plate attachment method - Google Patents

Polarizing plate attachment device and polarization plate attachment method Download PDF

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Publication number
WO2012144169A1
WO2012144169A1 PCT/JP2012/002541 JP2012002541W WO2012144169A1 WO 2012144169 A1 WO2012144169 A1 WO 2012144169A1 JP 2012002541 W JP2012002541 W JP 2012002541W WO 2012144169 A1 WO2012144169 A1 WO 2012144169A1
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WO
WIPO (PCT)
Prior art keywords
liquid crystal
display panel
crystal display
polarizing plate
rotating drum
Prior art date
Application number
PCT/JP2012/002541
Other languages
French (fr)
Japanese (ja)
Inventor
田村　耐
Original Assignee
シャープ株式会社
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Filing date
Publication date
Application filed by シャープ株式会社 filed Critical シャープ株式会社
Publication of WO2012144169A1 publication Critical patent/WO2012144169A1/en

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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
    • 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

Definitions

  • the present invention relates to a polarizing plate sticking apparatus and a polarizing plate sticking method.
  • a liquid crystal display device includes a TFT substrate on which a plurality of TFTs (thin film transistors) are formed, a counter substrate disposed to face the TFT substrate, and a liquid crystal layer sealed between the TFT substrate and the counter substrate.
  • a display panel is provided.
  • a polarizing plate is attached to the surface opposite to the liquid crystal layer in each of the TFT substrate and the counter substrate.
  • Patent Document 1 discloses a polarizing plate sticking device for sticking a polarizing plate to a liquid crystal display panel.
  • the polarizing plate pasting apparatus includes a polarizing plate transport unit that transports the polarizing plate, a rotating drum that vacuum-sucks the polarizing plate received from the polarizing plate transport unit on a rotating surface, and a stage that transports the liquid crystal display panel by suction and fixing. And.
  • the rotating drum has a drum main body and an adsorbing portion made of a porous elastic body provided on the outer peripheral portion of the drum main body.
  • the polarizing plate has an adhesive surface and a non-adhesive surface. The non-adhesive surface of the polarizing plate is sucked and held on the sucking portion of the rotating drum by the suction force of the drum body.
  • the polarizing plate sticking apparatus is configured to stick the polarizing plate conveyed by the rotating drum to the liquid crystal display panel adsorbed and fixed to the stage at the polarizing plate attaching position below the rotating drum. Has been.
  • the polarizing plate pasting apparatus of Patent Document 1 is configured to simultaneously adsorb a plurality of polarizing plates to one rotating drum and continuously stick the polarizing plates to a plurality of liquid crystal display panels. Since the liquid crystal display panel is increased in size, it is necessary to stick a large polarizing plate to a liquid crystal display panel one by one on a rotating drum.
  • the polarizing drum is gradually attached to the surface of the liquid crystal display panel while the rotating drum rolls on the surface of the liquid crystal display panel from one end side to the other end side.
  • the rotating drum is separated from the polarizing plate while the intake air of the drum body is switched to the exhaust.
  • the polarizing plate is attached to the liquid crystal display panel.
  • the present inventor replaces the porous adsorption part for sucking and holding the polarizing plate, and attaches the polarizing plate by providing an adsorption sheet having a relatively weak adsorption force on the surface of the rotating drum.
  • adsorption sheet having a relatively weak adsorption force on the surface of the rotating drum.
  • the present invention has been made in view of such points, and an object of the present invention is to provide a stage for a liquid crystal display panel while suppressing contamination of dust between the surface of the liquid crystal display panel and a polarizing plate. It is to complete the affixing operation of the polarizing plate in a state where it is reliably supported.
  • a polarizing plate sticking apparatus has a stage for supporting a liquid crystal display panel and a rotating surface for holding the polarizing plate, and the surface of the liquid crystal display panel supported by the stage.
  • a regulating member that regulates movement of the liquid crystal display panel toward the rotating drum when it is separated from the surface of the liquid crystal display panel on the other end side.
  • the polarizing plate attaching method includes a first step of supporting the liquid crystal display panel on the stage, a second step of holding the polarizing plate on the rotating surface of the rotating drum, and a rotating drum holding the polarizing plate.
  • the movement of the liquid crystal display panel toward the rotating drum is restricted by a restricting member.
  • the rotating drum holding the polarizing plate is rolled on the surface of the liquid crystal display panel on the surface of the liquid crystal display panel supported by the stage from the one end side to the other end side.
  • the movement of the liquid crystal display panel to the rotating drum side is controlled by a regulating member. Since it is regulated, the liquid crystal display panel is securely supported on the stage while eliminating dust from the surface of the liquid crystal display panel and the polarizing plate by eliminating the exhaust from the rotating drum. In this state, the polarizing plate can be attached.
  • FIG. 1 is a perspective view illustrating a schematic configuration of a polarizing plate pasting apparatus according to the first embodiment.
  • FIG. 2 is a side view showing a schematic configuration of a polarizing plate sticking apparatus in which the polarizing plate in Embodiment 1 is held by a rotating drum.
  • FIG. 3 is a side view showing the polarizing plate sticking apparatus in which the rotating drum in Embodiment 1 is lowered to the use position.
  • FIG. 4 is a side view showing the polarizing plate pasting apparatus immediately after the rotating drum in Embodiment 1 has pasted the polarizing plate.
  • FIG. 5 is a side view showing the polarizing plate pasting apparatus in which the rotating drum in Embodiment 1 is separated from the liquid crystal display panel.
  • FIG. 1 is a perspective view illustrating a schematic configuration of a polarizing plate pasting apparatus according to the first embodiment.
  • FIG. 2 is a side view showing a schematic configuration of a polarizing plate sticking apparatus in which the polarizing plate in
  • FIG. 6 is a side view showing the polarizing plate pasting apparatus in which the pressing roller in Embodiment 1 is separated from the liquid crystal display panel.
  • FIG. 7 is a side view showing the polarizing plate pasting apparatus in which the rotating drum in Embodiment 1 returns to one end side of the liquid crystal display panel.
  • FIG. 8 is an enlarged front view showing the vicinity of the end portion of the rotating drum in the second embodiment.
  • FIG. 9 is a side view showing a schematic configuration of a polarizing plate sticking apparatus in which the polarizing plate in Embodiment 2 is held by a rotating drum.
  • FIG. 10 is a side view showing the polarizing plate pasting apparatus in which the rotating drum in Embodiment 2 is lowered to the use position.
  • FIG. 11 is a side view showing the polarizing plate pasting apparatus immediately after the rotating drum in Embodiment 2 has pasted the polarizing plate.
  • FIG. 12 is a side view showing the polarizing plate pasting device in which the rotating drum in Embodiment 2 is separated from the liquid crystal display panel.
  • FIG. 13 is a side view showing a polarizing plate sticking device in which the pressing roller in Embodiment 2 rolls on the surface of the liquid crystal display panel.
  • FIG. 14 is a side view showing the polarizing plate pasting apparatus in which the rotating drum in Embodiment 2 returns to one end side of the liquid crystal display panel.
  • FIG. 15 is a side view showing the polarizing plate pasting apparatus in which the pressing roller in Embodiment 2 returns to one end side of the liquid crystal display panel.
  • FIG. 16 is a side view showing the polarizing plate sticking apparatus in which the pressing roller in Embodiment 2 is raised on one end side of the liquid crystal display panel.
  • FIG. 17 is a side view showing a schematic configuration of the polarizing plate sticking apparatus immediately after the rotating drum in Embodiment 3 attaches the polarizing plate.
  • FIG. 18 is a side view showing the polarizing plate pasting device in which the rotating drum in Embodiment 3 is separated from the liquid crystal display panel.
  • Embodiment 1 of the Invention 1 to 7 show Embodiment 1 of the present invention.
  • FIG. 1 is a perspective view showing a schematic configuration of a polarizing plate sticking apparatus 1 according to the first embodiment.
  • FIG. 2 is a side view showing a schematic configuration of the polarizing plate pasting apparatus 1 in which the polarizing plate 14 is held by the rotating drum 17.
  • FIG. 3 is a side view showing the polarizing plate pasting apparatus 1 with the rotating drum 17 lowered to the use position.
  • FIG. 4 is a side view showing the polarizing plate pasting apparatus 1 immediately after the rotating drum 17 has pasted the polarizing plate.
  • FIG. 5 is a side view showing the polarizing plate pasting apparatus 1 in which the rotating drum 17 is separated from the liquid crystal display panel 10.
  • FIG. 6 is a side view showing the polarizing plate pasting apparatus 1 in which the pressing roller 19 is separated from the liquid crystal display panel 10.
  • FIG. 7 is a side view showing the polarizing plate pasting apparatus 1 in which the rotating drum 17 has returned to the one end A side of the liquid crystal display panel 10.
  • the polarizing plate sticking device 1 is a device for sticking the polarizing plate 14 to the liquid crystal display panel 10.
  • the polarizing plate pasting apparatus 1 includes a stage 11 that supports the liquid crystal display panel 10, a pair of rail portions 12 that are arranged so as to sandwich the stage 11, and the rail portion 12.
  • a pair of frames 13 formed, a rotating drum 17 rotatably supported by the frame 13, and a pressing roller 19 as a restricting member constituted by a roller member are provided.
  • the stage 11 has a large number of suction ports (not shown) on its upper surface, and holds the liquid crystal display panel 10 placed by the suction force in the suction ports by vacuum suction.
  • suction ports not shown
  • the stage 11 in this embodiment has a relatively small suction force at the suction port.
  • the rail portions 12 are arranged on both the left and right sides of the stage 11 so as to sandwich the stage 11, and extend parallel to each other.
  • Each rail portion 12 is provided with a frame 13 and supports the frame 13 so as to be slidable.
  • Each frame 13 is formed in a rectangular plate shape, for example, and is arranged so as to face each other while being supported by the rail portion 12.
  • An end portion of the rotating drum 17 and an end portion of the pressing roller 19 are rotatably supported on the frame 13. Further, the rotary drum 17 and the pressing roller 19 are supported by the frame 13 so as to be movable up and down.
  • the rotating drum 17 has a rotating surface 15 that holds the polarizing plate 14, as shown in FIGS.
  • An adsorbing sheet 21 is provided on the rotating surface 15.
  • the suction sheet 21 is made of a flexible resin sheet, and a large number of minute suction cups are formed on the surface thereof. As a result, the suction sheet 21 itself has a relatively weak suction force.
  • the rotary drum 17 is used in a retracted position separated from the surface of the stage 11 and the liquid crystal display panel 10 and the lower end thereof approaching to substantially the same height as the surface of the liquid crystal display panel 10. It is supported by the frame 13 so as to be movable up and down between the positions.
  • each frame 13 slides on the rail portion 12 synchronously, so that the rotary drum 17 moves to the stage 11.
  • the liquid crystal display panel 10 rolls from one end A side to the other end B side on the surface of the supported liquid crystal display panel 10.
  • the rotating drum 17 is configured to affix the held polarizing plate 14 on the surface of the liquid crystal display panel 10 by rolling on the surface of the liquid crystal display panel 10 in this way.
  • the pressing roller 19 is used in a retracted position separated from the surface of the stage 11 and the liquid crystal display panel 10 and a position where the lower end thereof is slightly lifted from the surface of the liquid crystal display panel 10. It is supported by the frame 13 so as to be movable up and down between the positions.
  • the pressing roller 19 is made of a resin such as polyacetal.
  • the pressing roller 19 in the present embodiment is supported by the frame 13 that is common to the rotating drum 17, it moves on the liquid crystal display panel 10 simultaneously with the rotating drum 17.
  • the pressing roller 19 is configured so as to restrict the movement of the liquid crystal display panel 10 toward the rotary drum 17 so that the liquid crystal display panel 10 does not greatly disengage from the stage 11.
  • a first step of supporting the liquid crystal display panel 10 on the stage 11 is performed.
  • the liquid crystal display panel 10 is fixed to the stage 11 by vacuum suction.
  • the rotating drum 17 and the pressing roller 19 are respectively disposed at the retracted position.
  • a second step of holding the polarizing plate 14 on the rotating surface 15 of the rotating drum 17 is performed.
  • the large polarizing plate 14 is sucked and held by the suction sheet 21 having the suction force provided on the rotating surface 15 of the rotary drum 17.
  • a third step of attaching the polarizing plate 14 to the surface of the liquid crystal display panel 10 is performed. That is, as shown in FIG. 3, on one end A side of the liquid crystal display panel 10, the rotary drum 17 and the pressing roller 19 are respectively lowered from the retracted position to the use position. Subsequently, as shown in FIG. 4, by rotating the frame 13 along the rail portion 12, the rotary drum 17 holding the polarizing plate 14 is moved to the surface of the liquid crystal display panel 10 supported by the stage 11. The liquid crystal display panel 10 is rolled from one end A side to the other end B side. As a result, the polarizing plate 14 is attached to the surface of the liquid crystal display panel 10.
  • the pressing roller 19 moves together with the rotating drum 17 from one end A side to the other end B side of the liquid crystal display panel 10 while slightly floating from the surface of the liquid crystal display panel 10.
  • the rotating drum 17 to which the polarizing plate 14 is attached is separated from the surface of the liquid crystal display panel 10 on the other end B side of the liquid crystal display panel 10 and is raised to the retracted position.
  • the pressing roller 19 is fixed at the use position. That is, since the pressing roller 19 is fixedly disposed on the other end B side of the liquid crystal display panel 10 in a state of being slightly lifted from the surface of the liquid crystal display panel 10, the pressing roller 19 is placed on the surface of the liquid crystal display panel 10. It will be arrange
  • the pressing roller 19 is raised from the use position to the retracted position. Thereafter, as shown in FIG. 7, the rotating drum 17 and the pressing roller 19 that are retracted to the retracted position are moved together with the frame 13 from the other end B side to the one end A side of the liquid crystal display panel. Thus, the polarizing plate 14 is attached to the surface of the liquid crystal display panel 10.
  • Embodiment 1- Therefore, according to the first embodiment, by rotating the rotating drum 17 holding the polarizing plate 14 from the one end A side to the other end B side on the surface of the liquid crystal display panel 10 supported by the stage 11, A polarizing plate 14 can be attached to the surface of the liquid crystal display panel 10.
  • the rotary drum 17 is separated from the surface of the liquid crystal display panel 10 on the other end B side of the liquid crystal display panel 10, the movement of the liquid crystal display panel 10 toward the rotary drum 17 can be restricted by the pressing roller 19. it can. Therefore, unlike the conventional polarizing plate sticking device that vacuum-adsorbs the polarizing plate, it is not necessary to exhaust the rotating drum from the surface of the liquid crystal display panel. Mixing between the display panel 10 and the polarizing plate 14 can be suppressed.
  • the rotary drum 17 can be moved to the retracted position while the liquid crystal display panel 10 is sucked and held on the stage 11. . That is, the attaching operation of the polarizing plate 14 can be completed while the liquid crystal display panel 10 is securely supported by the stage 11.
  • the adsorption sheet 21 having a relatively weak adsorption force is provided on the surface of the rotary drum 17 and the polarizing plate 14 is attached, even if the polarizing plate is thinned, the polarizing plate has wrinkles. It can be appropriately held without being generated.
  • the space for installing the device is greatly increased compared to the case where the rotary drum 17 is retracted sideways. It becomes possible to reduce.
  • Embodiment 2 of the Invention >> 8 to 16 show Embodiment 2 of the present invention.
  • FIG. 8 is an enlarged front view showing the vicinity of the end of the rotating drum 17 in the second embodiment.
  • FIG. 9 is a side view showing a schematic configuration of the polarizing plate pasting apparatus 1 in which the polarizing plate 14 is held by the rotating drum 17.
  • FIG. 10 is a side view showing the polarizing plate pasting apparatus 1 with the rotating drum 17 lowered to the use position.
  • FIG. 11 is a side view showing the polarizing plate pasting apparatus 1 immediately after the rotating drum 17 has pasted the polarizing plate 14.
  • FIG. 12 is a side view showing the polarizing plate pasting apparatus 1 in which the rotating drum 17 is separated from the liquid crystal display panel 10.
  • FIG. 13 is a side view showing the polarizing plate pasting apparatus 1 in which the pressing roller 19 rolls on the surface of the liquid crystal display panel 10.
  • FIG. 14 is a side view showing the polarizing plate pasting apparatus 1 in which the rotating drum 17 is returned to the one end A side of the liquid crystal display panel 10.
  • FIG. 15 is a side view showing the polarizing plate pasting apparatus 1 in which the pressing roller 19 has returned to the one end A side of the liquid crystal display panel 10.
  • FIG. 16 is a side view showing the polarizing plate pasting apparatus 1 in which the pressing roller 19 is raised on the one end A side of the liquid crystal display panel 10.
  • the polarizing plate pasting apparatus 1 not only provides the pressing roller 19 on the other end B side of the liquid crystal display panel 10, but then removes bubbles from between the polarizing plate 14 and the liquid crystal display panel 10. It is configured.
  • the polarizing plate pasting apparatus 1 includes a stage 11 that supports the liquid crystal display panel 10, a pair of rail portions 12 that are arranged so as to sandwich the stage 11, and a first frame 31 that is provided on the rail portion 12. And a second frame 32, a rotary drum 17 rotatably supported by the first frame 31, and a pressing roller 19 rotatably supported by the second frame 32.
  • the first and second frames 31 and 32 are each formed in, for example, a rectangular plate shape and supported by the rail portion 12, and the first frames 31 face each other, It arrange
  • the second frame 32 is arranged inside the first frame 31, and can slide on the rail portion 12 independently of the first frame 31.
  • the rotating drum 17 is supported by the first frame 31 so as to be movable up and down.
  • the pressing roller 19 is supported by the second frame 32 so as to be movable up and down.
  • the rotary drum 17 is used in a retracted position separated from the surface of the stage 11 and the liquid crystal display panel 10 and the lower end thereof approaching to substantially the same height as the surface of the liquid crystal display panel 10.
  • the first frame 31 is supported so as to be movable up and down between the positions.
  • the pressing roller 19 approaches the retracted position separated from the surface of the stage 11 and the liquid crystal display panel 10, and the position where the lower end slightly floats from the surface of the liquid crystal display panel 10.
  • the frame 13 is supported by the frame 13 so as to be movable up and down. Further, the pressing roller 19 is supported by the frame 13 so as to be movable up and down between a use position and a contact position where the lower end of the press roller 19 is a position where the press roller 19 can contact the surface of the polarizing plate 14 on the liquid crystal display panel 10.
  • the pressing roller 19 is disposed on the liquid crystal display panel 10 in a state where the rotary drum 17 is raised on the other end B side of the liquid crystal display panel 10 and separated from the surface of the liquid crystal display panel 10. It is configured to roll on the surface to the other end B side of the liquid crystal display panel 10.
  • the pressing roller 19 is made of a resin such as polyacetal.
  • the first step of supporting the liquid crystal display panel 10 on the stage 11 is performed.
  • the liquid crystal display panel 10 is fixed to the stage 11 by vacuum suction.
  • the rotating drum 17 and the pressing roller 19 are respectively disposed at the retracted position.
  • a second step of holding the polarizing plate 14 on the rotating surface 15 of the rotating drum 17 is performed.
  • the large polarizing plate 14 is sucked and held by the suction sheet 21 having the suction force provided on the rotating surface 15 of the rotary drum 17.
  • a third step of attaching the polarizing plate 14 to the surface of the liquid crystal display panel 10 is performed. That is, as shown in FIG. 10, on one end A side of the liquid crystal display panel 10, the rotary drum 17 and the pressing roller 19 are respectively lowered from the retracted position to the use position.
  • the rotary drum 17 holding the polarizing plate 14 is supported by the stage 11 by sliding the first and second frames 31 and 32 along the rail portion 12.
  • the liquid crystal display panel 10 is rolled from one end A side to the other end B side on the surface of the liquid crystal display panel 10.
  • the polarizing plate 14 is attached to the surface of the liquid crystal display panel 10.
  • the pressing roller 19 moves from one end A side to the other end B side of the liquid crystal display panel 10 while slightly floating from the surface of the liquid crystal display panel 10.
  • the rotating drum 17 to which the polarizing plate 14 is attached is separated from the surface of the liquid crystal display panel 10 on the other end B side of the liquid crystal display panel 10 and is raised to the retracted position. Perform the process.
  • the pressing roller 19 is fixed at the use position. That is, since the pressing roller 19 is fixedly disposed on the other end B side of the liquid crystal display panel 10 in a state of being slightly lifted from the surface of the liquid crystal display panel 10, the pressing roller 19 is placed on the surface of the liquid crystal display panel 10. It will be arrange
  • a fifth step of removing bubbles from between the polarizing plate 14 and the liquid crystal display panel 10 is performed. That is, as shown in FIG. 13, with the pressing roller 19 lowered from the use position to the contact position, the second frame 32 is moved with the pressing roller 19 in contact with the surface of the polarizing plate 14 on the liquid crystal display panel 10. Further, the liquid crystal display panel 10 is moved to the other end B side.
  • the pressing roller 19 moves on the surface of the liquid crystal display panel 10 on the surface of the liquid crystal display panel 10 in a state where the rotary drum 17 rises away from the surface of the liquid crystal display panel 10 on the other end B side of the liquid crystal display panel 10. Roll further to the other end B side. As a result, if bubbles are mixed between the polarizing plate 14 and the liquid crystal display panel 10, the bubbles can be pushed out.
  • the rotating drum 17 moving to the retracted position is moved together with the first frame 31 from the other end B side of the liquid crystal display panel 10 to one end A side.
  • the press roller 19 is moved from the contact position to the use position and is moved together with the second frame 32 from the other end B side of the liquid crystal display panel 10 to one end A side.
  • the pressing roller 19 is moved from the use position to the retracted position.
  • the polarizing plate 14 is attached to the surface of the liquid crystal display panel 10.
  • the pressing roller 19 is rolled to the other end B side on the surface of the liquid crystal display panel 10 with the rotary drum 17 moved to the retracted position. Bubbles mixed between the liquid crystal display panel 10 can be pushed out to remove the bubbles.
  • Embodiment 3 of the Invention >> 17 and 18 show Embodiment 3 of the present invention.
  • FIG. 17 is a side view showing a schematic configuration of the polarizing plate attaching apparatus 1 immediately after the rotating drum 17 in Embodiment 3 attaches the polarizing plate.
  • FIG. 18 is a side view showing the polarizing plate pasting apparatus 1 in which the rotating drum 17 is separated from the liquid crystal display panel 10.
  • the pressing roller 19 which is one restricting member is provided, but the present embodiment 2 is different in that the first restricting member 23 and the second restricting member 25 are provided.
  • the polarizing plate sticking apparatus 1 of the present embodiment includes a first pressing roller 23 as a first regulating member disposed on the other end B side of the liquid crystal display panel 10, and the liquid crystal display panel 10. And a second presser roller 25 as a second restricting member disposed in the central portion 24 of the second control member.
  • the first pressing roller 23 has the same configuration as that of the first embodiment. Therefore, the first pressing roller 23 is supported by the frame 13 and is configured to be movable up and down between the use position and the retracted position.
  • the second pressing roller 25 is supported by a frame (not shown) that is independent from the frame 13, is retracted from the surface of the stage 11 and the liquid crystal display panel 10, and has a lower end at the lower end of the liquid crystal display panel 10. It is configured to be able to move up and down between a use position close to a position slightly floating from the surface.
  • first and second pressing rollers 23 and 25 are arranged at the use positions when the rotary drum 17 rises from the use position on the other end B side of the liquid crystal display panel 10.
  • the second step of holding the polarizing plate 14 on the rotating surface 15 of 17 is performed.
  • the rotary drum 17 and the first pressing roller 23 are moved to the liquid crystal display by moving the frame 13 to the other end B side of the liquid crystal display panel 10 with the second pressing roller 25 raised to the retracted position.
  • the liquid crystal display panel 10 is rolled from one end A side to the other end B side on the surface of the panel 10.
  • the polarizing plate 14 is attached to the surface of the liquid crystal display panel 10.
  • the first pressing roller 23 is disposed on the other end B side of the liquid crystal display panel 10 and the second pressing roller 25 is disposed in the central portion 24 of the liquid crystal display panel 10. That is, as shown in FIG. 17, first, the first pressing roller 23 is fixed at the use position, and the second pressing roller 25 is lowered from the retracted position to the use position. Subsequently, as shown in FIG. 18, the rotary drum 17 is moved away from the surface of the liquid crystal display panel 10 on the other end B side of the liquid crystal display panel 10 and raised to the retracted position.
  • the first and second pressing rollers 23 and 25 are raised from the use position to the retracted position, respectively. Thereafter, the rotating drum 17 and the first pressing roller 23 retracted to the retracted position are moved together with the frame 13 from the other end B side to the one end A side of the liquid crystal display panel. Thus, the polarizing plate 14 is attached to the surface of the liquid crystal display panel 10.
  • the first and second pressing rollers 23 and 25 for restricting the movement of the liquid crystal display panel 10 toward the rotary drum 17 are provided, so that the liquid crystal is the same as in the first embodiment. Completing the attaching operation of the polarizing plate 14 while the liquid crystal display panel 10 is reliably supported on the stage 11 while suppressing the mixing of dust between the surface of the display panel 10 and the polarizing plate 14. Can do.
  • the liquid crystal display panel has been made thinner, and the liquid crystal display panel itself is greatly bent easily. If the liquid crystal display panel is greatly bent, the circuit configuration formed on the liquid crystal display panel may be damaged. In contrast, in the present embodiment, when the rotary drum 17 is raised from the use position, the surface of the liquid crystal display panel 10 can be pressed by the pressing rollers 23 and 25 not only at the other end B side but also at the central portion 24. Therefore, the bending of the liquid crystal display panel 10 can be suppressed, and the liquid crystal display panel 10 can be suitably protected.
  • the regulating member is configured by the roller member.
  • the regulating member can be configured by a member having another shape.
  • the regulating member is configured by a roller member.
  • the present invention is not limited thereto, and the outer peripheral portion of the rotating drum is made of a porous elastic body.
  • a configuration in which a suction portion is provided may be used, and the polarizing plate may be vacuum-sucked and held on the suction portion.
  • the present invention is not limited to the above-described first to third embodiments, and the present invention includes a configuration in which these first to third embodiments are appropriately combined.
  • the present invention is useful for a polarizing plate sticking apparatus and a polarizing plate sticking method.
  • Polarizer sticking device 10
  • Liquid crystal display panel 11 stages 14
  • Polarizing plate 15
  • Rotating surface 18
  • Rotating drum 19
  • Pressing roller (regulating member) 21
  • Adsorption sheet 23
  • First pressing roller (first regulating member) 24
  • Second pressing roller second regulating member

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  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Nonlinear Science (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Liquid Crystal (AREA)

Abstract

A polarizing plate attachment device is provided with: a stage for supporting a liquid crystal display panel; a rotating drum that has a rotating surface for holding the polarizing plate, and attaches the held polarizing plate to the surface of the liquid crystal display panel by moving along the surface of the liquid crystal display panel supported by the stage from one side to the other side thereof; and a restricting member for restricting the movement of the liquid crystal display panel toward the rotating-drum side when the rotating drum separates from the surface of the liquid crystal display panel at the other side thereof.

Description

偏光板貼付装置及び偏光板貼付方法Polarizing plate pasting apparatus and polarizing plate pasting method
　本発明は、偏光板貼付装置及び偏光板貼付方法に関するものである。 The present invention relates to a polarizing plate sticking apparatus and a polarizing plate sticking method.
　液晶表示装置は、複数のＴＦＴ（薄膜トランジスタ）が形成されたＴＦＴ基板と、ＴＦＴ基板に対向して配置された対向基板と、これらＴＦＴ基板及び対向基板の間に封入された液晶層とを有する液晶表示パネルを備えている。ＴＦＴ基板及び対向基板には、それぞれ液晶層と反対側の表面に偏光板が貼り付けられている。 A liquid crystal display device includes a TFT substrate on which a plurality of TFTs (thin film transistors) are formed, a counter substrate disposed to face the TFT substrate, and a liquid crystal layer sealed between the TFT substrate and the counter substrate. A display panel is provided. A polarizing plate is attached to the surface opposite to the liquid crystal layer in each of the TFT substrate and the counter substrate.
　特許文献１には、偏光板を液晶表示パネルに貼り付ける偏光板貼付装置が開示されている。この偏光板貼付装置は、偏光板を搬送する偏光板搬送部と、この偏光板搬送部から受け取った偏光板を回転表面で真空吸着する回転ドラムと、液晶表示パネルを吸着固定して搬送するステージとを備えている。 Patent Document 1 discloses a polarizing plate sticking device for sticking a polarizing plate to a liquid crystal display panel. The polarizing plate pasting apparatus includes a polarizing plate transport unit that transports the polarizing plate, a rotating drum that vacuum-sucks the polarizing plate received from the polarizing plate transport unit on a rotating surface, and a stage that transports the liquid crystal display panel by suction and fixing. And.
　上記回転ドラムは、ドラム本体と、ドラム本体の外周部分に設けられた多孔質の弾性体からなる吸着部とを有している。一方、偏光板は、粘着面と非粘着面とを有している。そして、その偏光板の非粘着面が、ドラム本体の吸引力によって上記回転ドラムの吸着部に吸着保持されるようになっている。 The rotating drum has a drum main body and an adsorbing portion made of a porous elastic body provided on the outer peripheral portion of the drum main body. On the other hand, the polarizing plate has an adhesive surface and a non-adhesive surface. The non-adhesive surface of the polarizing plate is sucked and held on the sucking portion of the rotating drum by the suction force of the drum body.
　そして、上記偏光板貼付装置は、回転ドラムの下方の偏光板貼り付け位置において、回転ドラムによって搬送された偏光板を、ステージに吸着固定されている液晶表示パネルに粘着させて貼り付けるように構成されている。 The polarizing plate sticking apparatus is configured to stick the polarizing plate conveyed by the rotating drum to the liquid crystal display panel adsorbed and fixed to the stage at the polarizing plate attaching position below the rotating drum. Has been.
　上記特許文献１の偏光板貼付装置では、１つの回転ドラムに複数の偏光板を同時に吸着して、複数の液晶表示パネルに連続的に当該偏光板を貼り付けるように構成されているが、近年、液晶表示パネルが大型化されていることから、１つの回転ドラムに大きい偏光板を１枚ずつ吸着させて液晶表示パネルに貼り付けていくことが必要となっている。 The polarizing plate pasting apparatus of Patent Document 1 is configured to simultaneously adsorb a plurality of polarizing plates to one rotating drum and continuously stick the polarizing plates to a plurality of liquid crystal display panels. Since the liquid crystal display panel is increased in size, it is necessary to stick a large polarizing plate to a liquid crystal display panel one by one on a rotating drum.
　この場合、回転ドラムが液晶表示パネルの表面上をその一端側から他端側へ転動しながら、その偏光板を徐々に液晶表示パネルの表面に貼り付けていく。そして、回転ドラムが液晶表示パネルの他端側に到達したときに、ドラム本体の吸気が排気に切り替えられた状態で、当該回転ドラムが偏光板から離隔される。こうして、偏光板が液晶表示パネルに貼り付けられることとなる。 In this case, the polarizing drum is gradually attached to the surface of the liquid crystal display panel while the rotating drum rolls on the surface of the liquid crystal display panel from one end side to the other end side. When the rotating drum reaches the other end side of the liquid crystal display panel, the rotating drum is separated from the polarizing plate while the intake air of the drum body is switched to the exhaust. Thus, the polarizing plate is attached to the liquid crystal display panel.
特開２０１０－１５０８２号公報JP 2010-15082 A
　しかし、上記従来の偏光板貼付装置では、回転ドラムを偏光板から離隔させる際にその吸着部から排気を行うようになっているので、その排気によって周囲の粉塵が舞上げられる虞がある。その結果、液晶表示パネルの表面と偏光板との間に粉塵が混入し得る問題がある。 However, in the conventional polarizing plate pasting apparatus, when the rotating drum is separated from the polarizing plate, exhaust is performed from the adsorbing portion, so that there is a possibility that surrounding dust may be lifted by the exhaust. As a result, there is a problem that dust may be mixed between the surface of the liquid crystal display panel and the polarizing plate.
　一方、本発明者は、偏光板を吸引して保持するための多孔質の吸着部に代えて、吸着力が比較的弱い吸着シートを回転ドラムの表面に設けて偏光板の貼り付けを行うことを検討している。近年、偏光板の薄型化が進められているところ、薄型化された偏光板を真空吸着すると、当該偏光板に皺が生じるために回転ドラムによる適切な保持が難しい。これに対し、上記吸着シートを用いれば、皺を生じさせることなく偏光板を回転ドラムに保持させることが可能になる。 On the other hand, the present inventor replaces the porous adsorption part for sucking and holding the polarizing plate, and attaches the polarizing plate by providing an adsorption sheet having a relatively weak adsorption force on the surface of the rotating drum. Are considering. In recent years, thinning of a polarizing plate has been promoted. When the thinned polarizing plate is vacuum-adsorbed, wrinkles are generated in the polarizing plate, and thus it is difficult to appropriately hold the rotating plate. On the other hand, if the said adsorption sheet is used, it will become possible to hold | maintain a polarizing plate to a rotating drum, without producing a wrinkle.
　ところが、上記吸着シートを有する回転ドラムによって偏光板を液晶表示パネルに貼り付ける場合、偏光板を貼り終わった回転ドラムが液晶表示パネルの端部を吸着してしまう問題がある。その結果、上方位置に退避する回転ドラムによって液晶表示パネルの端部が持ち上げられ、液晶表示パネルがステージから外れて損傷する虞がある。 However, when the polarizing plate is attached to the liquid crystal display panel by the rotating drum having the adsorption sheet, there is a problem that the rotating drum after the polarizing plate is attached adsorbs the end of the liquid crystal display panel. As a result, the end of the liquid crystal display panel is lifted by the rotating drum retracted to the upper position, and the liquid crystal display panel may come off the stage and be damaged.
　本発明は、斯かる点に鑑みてなされたものであり、その目的とするところは、液晶表示パネルの表面と偏光板との間への粉塵の混入を抑制しながらも、液晶表示パネルをステージに確実に支持させた状態で偏光板の貼り付け作業を完了させることにある。 The present invention has been made in view of such points, and an object of the present invention is to provide a stage for a liquid crystal display panel while suppressing contamination of dust between the surface of the liquid crystal display panel and a polarizing plate. It is to complete the affixing operation of the polarizing plate in a state where it is reliably supported.
　上記の目的を達成するために、本発明に係る偏光板貼付装置は、液晶表示パネルを支持するステージと、偏光板を保持する回転表面を有し、上記ステージに支持された液晶表示パネルの表面上で該液晶表示パネルの一端側から他端側へ転動することにより、保持していた上記偏光板を上記液晶表示パネルの表面に貼り付ける回転ドラムと、上記回転ドラムが上記液晶表示パネルの他端側において該液晶表示パネルの表面から離隔する際に、上記液晶表示パネルの上記回転ドラム側への移動を規制する規制部材とを備えている。 In order to achieve the above object, a polarizing plate sticking apparatus according to the present invention has a stage for supporting a liquid crystal display panel and a rotating surface for holding the polarizing plate, and the surface of the liquid crystal display panel supported by the stage. A rotating drum for attaching the polarizing plate held on the surface of the liquid crystal display panel by rolling from one end side to the other end side of the liquid crystal display panel, and the rotating drum of the liquid crystal display panel And a regulating member that regulates movement of the liquid crystal display panel toward the rotating drum when it is separated from the surface of the liquid crystal display panel on the other end side.
　また、本発明に係る偏光板貼り付け方法は、液晶表示パネルをステージに支持させる第１工程と、回転ドラムの回転表面に偏光板を保持させる第２工程と、上記偏光板を保持した回転ドラムを、上記ステージに支持された液晶表示パネルの表面上で該液晶表示パネルの一端側から他端側へ転動させることにより、上記偏光板を上記液晶表示パネルの表面に貼り付ける第３工程と、上記偏光板を貼り付けた上記回転ドラムを、上記液晶表示パネルの他端側において該液晶表示パネルの表面から離隔させる第４工程とを有している。 The polarizing plate attaching method according to the present invention includes a first step of supporting the liquid crystal display panel on the stage, a second step of holding the polarizing plate on the rotating surface of the rotating drum, and a rotating drum holding the polarizing plate. A third step of affixing the polarizing plate to the surface of the liquid crystal display panel by rolling from one end side of the liquid crystal display panel to the other end side on the surface of the liquid crystal display panel supported by the stage; And a fourth step of separating the rotating drum on which the polarizing plate is attached from the surface of the liquid crystal display panel on the other end side of the liquid crystal display panel.
　そして、上記第４工程では、上記液晶表示パネルの上記回転ドラム側への移動を規制部材によって規制する。 In the fourth step, the movement of the liquid crystal display panel toward the rotating drum is restricted by a restricting member.
　本発明によれば、偏光板を保持した回転ドラムを、ステージに支持された液晶表示パネルの表面上でその一端側から他端側へ転動させることより、その液晶表示パネルの表面に偏光板を貼り付けるようにした偏光板貼付装置について、回転ドラムが液晶表示パネルの他端側においてその液晶表示パネルの表面から離隔する際に、その液晶表示パネルの回転ドラム側への移動を規制部材によって規制するようにしたので、回転ドラムからの排気等を不要にして液晶表示パネルの表面と偏光板との間への粉塵の混入を抑制しながらも、その液晶表示パネルをステージに確実に支持させた状態で偏光板の貼り付け作業を完了させることができる。 According to the present invention, the rotating drum holding the polarizing plate is rolled on the surface of the liquid crystal display panel on the surface of the liquid crystal display panel supported by the stage from the one end side to the other end side. When the rotating drum is separated from the surface of the liquid crystal display panel on the other end side of the liquid crystal display panel, the movement of the liquid crystal display panel to the rotating drum side is controlled by a regulating member. Since it is regulated, the liquid crystal display panel is securely supported on the stage while eliminating dust from the surface of the liquid crystal display panel and the polarizing plate by eliminating the exhaust from the rotating drum. In this state, the polarizing plate can be attached.
図１は、本実施形態１における偏光板貼付装置の概略構成を示す斜視図である。FIG. 1 is a perspective view illustrating a schematic configuration of a polarizing plate pasting apparatus according to the first embodiment. 図２は、本実施形態１における偏光板が回転ドラムによって保持された偏光板貼付装置の概略構成を示す側面図である。FIG. 2 is a side view showing a schematic configuration of a polarizing plate sticking apparatus in which the polarizing plate in Embodiment 1 is held by a rotating drum. 図３は、本実施形態１における回転ドラムが使用位置に下降した偏光板貼付装置を示す側面図である。FIG. 3 is a side view showing the polarizing plate sticking apparatus in which the rotating drum in Embodiment 1 is lowered to the use position. 図４は、本実施形態１における回転ドラムが偏光板を貼り付けた直後の偏光板貼付装置を示す側面図である。FIG. 4 is a side view showing the polarizing plate pasting apparatus immediately after the rotating drum in Embodiment 1 has pasted the polarizing plate. 図５は、本実施形態１における回転ドラムが液晶表示パネルから離隔した偏光板貼付装置を示す側面図である。FIG. 5 is a side view showing the polarizing plate pasting apparatus in which the rotating drum in Embodiment 1 is separated from the liquid crystal display panel. 図６は、本実施形態１における押さえローラが液晶表示パネルから離隔した偏光板貼付装置を示す側面図である。FIG. 6 is a side view showing the polarizing plate pasting apparatus in which the pressing roller in Embodiment 1 is separated from the liquid crystal display panel. 図７は、本実施形態１における回転ドラムが液晶表示パネルの一端側に戻った偏光板貼付装置を示す側面図である。FIG. 7 is a side view showing the polarizing plate pasting apparatus in which the rotating drum in Embodiment 1 returns to one end side of the liquid crystal display panel. 図８は、本実施形態２における回転ドラム端部の近傍部分を拡大して示す正面図である。FIG. 8 is an enlarged front view showing the vicinity of the end portion of the rotating drum in the second embodiment. 図９は、本実施形態２における偏光板が回転ドラムによって保持された偏光板貼付装置の概略構成を示す側面図である。FIG. 9 is a side view showing a schematic configuration of a polarizing plate sticking apparatus in which the polarizing plate in Embodiment 2 is held by a rotating drum. 図１０は、本実施形態２における回転ドラムが使用位置に下降した偏光板貼付装置を示す側面図である。FIG. 10 is a side view showing the polarizing plate pasting apparatus in which the rotating drum in Embodiment 2 is lowered to the use position. 図１１は、本実施形態２における回転ドラムが偏光板を貼り付けた直後の偏光板貼付装置を示す側面図である。FIG. 11 is a side view showing the polarizing plate pasting apparatus immediately after the rotating drum in Embodiment 2 has pasted the polarizing plate. 図１２は、本実施形態２における回転ドラムが液晶表示パネルから離隔した偏光板貼付装置を示す側面図である。FIG. 12 is a side view showing the polarizing plate pasting device in which the rotating drum in Embodiment 2 is separated from the liquid crystal display panel. 図１３は、本実施形態２における押さえローラが液晶表示パネルの表面を転動する偏光板貼付装置を示す側面図である。FIG. 13 is a side view showing a polarizing plate sticking device in which the pressing roller in Embodiment 2 rolls on the surface of the liquid crystal display panel. 図１４は、本実施形態２における回転ドラムが液晶表示パネルの一端側に戻った偏光板貼付装置を示す側面図である。FIG. 14 is a side view showing the polarizing plate pasting apparatus in which the rotating drum in Embodiment 2 returns to one end side of the liquid crystal display panel. 図１５は、本実施形態２における押さえローラが液晶表示パネルの一端側に戻った偏光板貼付装置を示す側面図である。FIG. 15 is a side view showing the polarizing plate pasting apparatus in which the pressing roller in Embodiment 2 returns to one end side of the liquid crystal display panel. 図１６は、本実施形態２における押さえローラが液晶表示パネルの一端側で上昇した偏光板貼付装置を示す側面図である。FIG. 16 is a side view showing the polarizing plate sticking apparatus in which the pressing roller in Embodiment 2 is raised on one end side of the liquid crystal display panel. 図１７は、本実施形態３における回転ドラムが偏光板を貼り付けた直後の偏光板貼付装置の概略構成を示す側面図である。FIG. 17 is a side view showing a schematic configuration of the polarizing plate sticking apparatus immediately after the rotating drum in Embodiment 3 attaches the polarizing plate. 図１８は、本実施形態３における回転ドラムが液晶表示パネルから離隔した偏光板貼付装置を示す側面図である。FIG. 18 is a side view showing the polarizing plate pasting device in which the rotating drum in Embodiment 3 is separated from the liquid crystal display panel.
　以下、本発明の実施形態を図面に基づいて詳細に説明する。尚、本発明は、以下の実施形態に限定されるものではない。 Hereinafter, embodiments of the present invention will be described in detail with reference to the drawings. The present invention is not limited to the following embodiment.
　《発明の実施形態１》
　図１～図７は、本発明の実施形態１を示している。 Embodiment 1 of the Invention
1 to 7 show Embodiment 1 of the present invention.
　図１は、本実施形態１における偏光板貼付装置１の概略構成を示す斜視図である。図２は、偏光板１４が回転ドラム１７によって保持された偏光板貼付装置１の概略構成を示す側面図である。図３は、回転ドラム１７が使用位置に下降した偏光板貼付装置１を示す側面図である。図４は、回転ドラム１７が偏光板を貼り付けた直後の偏光板貼付装置１を示す側面図である。 FIG. 1 is a perspective view showing a schematic configuration of a polarizing plate sticking apparatus 1 according to the first embodiment. FIG. 2 is a side view showing a schematic configuration of the polarizing plate pasting apparatus 1 in which the polarizing plate 14 is held by the rotating drum 17. FIG. 3 is a side view showing the polarizing plate pasting apparatus 1 with the rotating drum 17 lowered to the use position. FIG. 4 is a side view showing the polarizing plate pasting apparatus 1 immediately after the rotating drum 17 has pasted the polarizing plate.
　また、図５は、回転ドラム１７が液晶表示パネル１０から離隔した偏光板貼付装置１を示す側面図である。図６は、押さえローラ１９が液晶表示パネル１０から離隔した偏光板貼付装置１を示す側面図である。図７は、回転ドラム１７が液晶表示パネル１０の一端Ａ側に戻った偏光板貼付装置１を示す側面図である。 FIG. 5 is a side view showing the polarizing plate pasting apparatus 1 in which the rotating drum 17 is separated from the liquid crystal display panel 10. FIG. 6 is a side view showing the polarizing plate pasting apparatus 1 in which the pressing roller 19 is separated from the liquid crystal display panel 10. FIG. 7 is a side view showing the polarizing plate pasting apparatus 1 in which the rotating drum 17 has returned to the one end A side of the liquid crystal display panel 10.
　偏光板貼付装置１は、偏光板１４を液晶表示パネル１０に貼り付けるための装置である。図１及び図２に示すように、偏光板貼付装置１は、液晶表示パネル１０を支持するステージ１１と、ステージ１１を挟むように配置された一対のレール部１２と、このレール部１２に設けられた一対のフレーム１３と、このフレーム１３に回転可能に支持された回転ドラム１７と、ローラ部材によって構成された規制部材としての押さえローラ１９とを備えている。 The polarizing plate sticking device 1 is a device for sticking the polarizing plate 14 to the liquid crystal display panel 10. As shown in FIGS. 1 and 2, the polarizing plate pasting apparatus 1 includes a stage 11 that supports the liquid crystal display panel 10, a pair of rail portions 12 that are arranged so as to sandwich the stage 11, and the rail portion 12. A pair of frames 13 formed, a rotating drum 17 rotatably supported by the frame 13, and a pressing roller 19 as a restricting member constituted by a roller member are provided.
　ステージ１１は、その上面に多数の吸着口（図示省略）を有し、その吸着口における吸引力によって載置された液晶表示パネル１０を真空吸着して保持するようになっている。ここで、比較的大型の液晶表示パネルをステージ１１に真空吸着させる場合、吸着口における吸引力が大きいと、液晶表示パネル１０の液晶がその吸引力によって吸着口近傍に集まりやすくなるため、液晶分布にムラが生じる問題がある。したがって、本実施形態におけるステージ１１は、吸着口における吸引力が比較的小さくなっている。 The stage 11 has a large number of suction ports (not shown) on its upper surface, and holds the liquid crystal display panel 10 placed by the suction force in the suction ports by vacuum suction. Here, when a relatively large liquid crystal display panel is vacuum-adsorbed to the stage 11, if the suction force at the suction port is large, the liquid crystal of the liquid crystal display panel 10 tends to gather near the suction port due to the suction force. There is a problem that unevenness occurs. Therefore, the stage 11 in this embodiment has a relatively small suction force at the suction port.
　レール部１２は、図１に示すように、ステージ１１を挟むようにステージ１１の左右両側にそれぞれ配置され、互いに平行に延びている。各レール部１２には、フレーム１３がそれぞれ装着されており、このフレーム１３をスライド移動可能に支持している。 As shown in FIG. 1, the rail portions 12 are arranged on both the left and right sides of the stage 11 so as to sandwich the stage 11, and extend parallel to each other. Each rail portion 12 is provided with a frame 13 and supports the frame 13 so as to be slidable.
　各フレーム１３は、それぞれ例えば矩形板状に形成され、レール部１２に支持された状態で互いに対向するように配置されている。このフレーム１３には、回転ドラム１７の端部と、押さえローラ１９の端部とがそれぞれ回転可能に軸支されている。さらに、回転ドラム１７及び押さえローラ１９は、それぞれフレーム１３に昇降可能に支持されている。 Each frame 13 is formed in a rectangular plate shape, for example, and is arranged so as to face each other while being supported by the rail portion 12. An end portion of the rotating drum 17 and an end portion of the pressing roller 19 are rotatably supported on the frame 13. Further, the rotary drum 17 and the pressing roller 19 are supported by the frame 13 so as to be movable up and down.
　回転ドラム１７は、図１、図２及び図４に示すように、偏光板１４を保持する回転表面１５を有している。この回転表面１５には、吸着シート２１が設けられている。吸着シート２１は、可撓性を有する樹脂シートからなり、その表面に微小な吸盤が多数形成されている。そのことにより、吸着シート２１自体が比較的弱い吸着力を有している。 The rotating drum 17 has a rotating surface 15 that holds the polarizing plate 14, as shown in FIGS. An adsorbing sheet 21 is provided on the rotating surface 15. The suction sheet 21 is made of a flexible resin sheet, and a large number of minute suction cups are formed on the surface thereof. As a result, the suction sheet 21 itself has a relatively weak suction force.
　また、回転ドラム１７は、図２～図５に示すように、ステージ１１及び液晶表示パネル１０の表面から離隔した退避位置と、その下端が液晶表示パネル１０の表面と略同じ高さまで接近した使用位置との間で昇降可能にフレーム１３に支持されている。 Further, as shown in FIGS. 2 to 5, the rotary drum 17 is used in a retracted position separated from the surface of the stage 11 and the liquid crystal display panel 10 and the lower end thereof approaching to substantially the same height as the surface of the liquid crystal display panel 10. It is supported by the frame 13 so as to be movable up and down between the positions.
　そして、図２～図４に示すように、回転ドラム１７が使用位置に移動した状態で、各フレーム１３が同期してレール部１２上をスライド移動することにより、この回転ドラム１７がステージ１１に支持された液晶表示パネル１０の表面上で液晶表示パネル１０の一端Ａ側から他端Ｂ側へ転動するようになっている。そうして、回転ドラム１７は、このように液晶表示パネル１０の表面上を転動することによって、保持していた偏光板１４を液晶表示パネル１０の表面に貼り付けるように構成されている。 Then, as shown in FIGS. 2 to 4, with the rotary drum 17 moved to the use position, each frame 13 slides on the rail portion 12 synchronously, so that the rotary drum 17 moves to the stage 11. The liquid crystal display panel 10 rolls from one end A side to the other end B side on the surface of the supported liquid crystal display panel 10. Then, the rotating drum 17 is configured to affix the held polarizing plate 14 on the surface of the liquid crystal display panel 10 by rolling on the surface of the liquid crystal display panel 10 in this way.
　押さえローラ１９は、図３及び図６に示すように、ステージ１１及び液晶表示パネル１０の表面から離隔した退避位置と、その下端が液晶表示パネル１０の表面から僅かに浮いた位置まで接近した使用位置との間で昇降可能にフレーム１３に支持されている。押さえローラ１９は、例えばポリアセタール等の樹脂によって構成されている。 As shown in FIGS. 3 and 6, the pressing roller 19 is used in a retracted position separated from the surface of the stage 11 and the liquid crystal display panel 10 and a position where the lower end thereof is slightly lifted from the surface of the liquid crystal display panel 10. It is supported by the frame 13 so as to be movable up and down between the positions. The pressing roller 19 is made of a resin such as polyacetal.
　本実施形態における押さえローラ１９は、回転ドラム１７と共通のフレーム１３に支持されているため、回転ドラム１７と同時に液晶表示パネル１０上を移動するようになっている。 Since the pressing roller 19 in the present embodiment is supported by the frame 13 that is common to the rotating drum 17, it moves on the liquid crystal display panel 10 simultaneously with the rotating drum 17.
　そして、図５に示すように、使用位置の回転ドラム１７が液晶表示パネル１０の他端Ｂ側において液晶表示パネル１０の表面から離隔する際に、この液晶表示パネル１０の他端Ｂ側において、押さえローラ１９が液晶表示パネル１０の表面近傍の使用位置に留まっている。そのことにより、押さえローラ１９は、液晶表示パネル１０の回転ドラム１７側への移動を規制して、その液晶表示パネル１０がステージ１１から大きく外れないように構成されている。 Then, as shown in FIG. 5, when the rotating drum 17 at the use position is separated from the surface of the liquid crystal display panel 10 on the other end B side of the liquid crystal display panel 10, on the other end B side of the liquid crystal display panel 10, The pressing roller 19 remains in the use position near the surface of the liquid crystal display panel 10. Accordingly, the pressing roller 19 is configured so as to restrict the movement of the liquid crystal display panel 10 toward the rotary drum 17 so that the liquid crystal display panel 10 does not greatly disengage from the stage 11.
　　－貼付方法－
　次に、上記偏光板貼付装置１による偏光板貼付方法ついて説明する。 -Paste method-
Next, the polarizing plate sticking method by the polarizing plate sticking apparatus 1 will be described.
　まず、図１及び図２に示すように、液晶表示パネル１０をステージ１１に支持させる第１工程を行う。このとき、液晶表示パネル１０をステージ１１に真空吸着させて固定する。また、図２に示すように、回転ドラム１７及び押さえローラ１９は、それぞれ退避位置に配置されている。 First, as shown in FIGS. 1 and 2, a first step of supporting the liquid crystal display panel 10 on the stage 11 is performed. At this time, the liquid crystal display panel 10 is fixed to the stage 11 by vacuum suction. Further, as shown in FIG. 2, the rotating drum 17 and the pressing roller 19 are respectively disposed at the retracted position.
　次に、図２に示すように、回転ドラム１７の回転表面１５に偏光板１４を保持させる第２工程を行う。この第２工程では、回転ドラム１７の回転表面１５に設けた吸着力を有する吸着シート２１によって、大判の偏光板１４を吸着保持させる。 Next, as shown in FIG. 2, a second step of holding the polarizing plate 14 on the rotating surface 15 of the rotating drum 17 is performed. In this second step, the large polarizing plate 14 is sucked and held by the suction sheet 21 having the suction force provided on the rotating surface 15 of the rotary drum 17.
　次に、偏光板１４を液晶表示パネル１０の表面に貼り付ける第３工程を行う。すなわち、図３に示すように、液晶表示パネル１０の一端Ａ側において、回転ドラム１７及び押さえローラ１９を、それぞれ退避位置から使用位置へ下降させる。続いて、図４に示すように、フレーム１３をレール部１２に沿ってスライド移動させることにより、偏光板１４を保持している回転ドラム１７を、ステージ１１に支持された液晶表示パネル１０の表面上で液晶表示パネル１０の一端Ａ側から他端Ｂ側へ転動させる。そのことにより、偏光板１４を液晶表示パネル１０の表面に貼り付ける。 Next, a third step of attaching the polarizing plate 14 to the surface of the liquid crystal display panel 10 is performed. That is, as shown in FIG. 3, on one end A side of the liquid crystal display panel 10, the rotary drum 17 and the pressing roller 19 are respectively lowered from the retracted position to the use position. Subsequently, as shown in FIG. 4, by rotating the frame 13 along the rail portion 12, the rotary drum 17 holding the polarizing plate 14 is moved to the surface of the liquid crystal display panel 10 supported by the stage 11. The liquid crystal display panel 10 is rolled from one end A side to the other end B side. As a result, the polarizing plate 14 is attached to the surface of the liquid crystal display panel 10.
　このとき、押さえローラ１９は、液晶表示パネル１０の表面から僅かに浮いた状態で、回転ドラム１７と共に液晶表示パネル１０の一端Ａ側から他端Ｂ側へ移動する。 At this time, the pressing roller 19 moves together with the rotating drum 17 from one end A side to the other end B side of the liquid crystal display panel 10 while slightly floating from the surface of the liquid crystal display panel 10.
　次に、図５に示すように、偏光板１４を貼り付けた回転ドラム１７を、液晶表示パネル１０の他端Ｂ側において液晶表示パネル１０の表面から離隔させて、退避位置に上昇させる第４工程を行う。この工程では、押さえローラ１９を使用位置に固定しておく。すなわち、押さえローラ１９は、液晶表示パネル１０の他端Ｂ側において、この液晶表示パネル１０の表面から僅かに浮いた状態で固定配置されることから、液晶表示パネル１０の表面に押さえローラ１９を当接可能に配置されることとなる。 Next, as shown in FIG. 5, the rotating drum 17 to which the polarizing plate 14 is attached is separated from the surface of the liquid crystal display panel 10 on the other end B side of the liquid crystal display panel 10 and is raised to the retracted position. Perform the process. In this step, the pressing roller 19 is fixed at the use position. That is, since the pressing roller 19 is fixedly disposed on the other end B side of the liquid crystal display panel 10 in a state of being slightly lifted from the surface of the liquid crystal display panel 10, the pressing roller 19 is placed on the surface of the liquid crystal display panel 10. It will be arrange | positioned so that contact | abutting is possible.
　したがって、回転ドラム１７が使用位置から上昇する際に、その吸着シート２１の吸着力によって液晶表示パネル１０の他端Ｂが引き上げられると、すぐに液晶表示パネル１０の表面が押さえローラ１９に当接するため、この押さえローラ１９によって液晶表示パネル１０の回転ドラム１７側への移動が規制される。そして、吸着シート２１から離脱した液晶表示パネル１０は、再びステージ１１の表面に保持されることとなる。 Therefore, when the rotary drum 17 is lifted from the use position, if the other end B of the liquid crystal display panel 10 is pulled up by the suction force of the suction sheet 21, the surface of the liquid crystal display panel 10 immediately comes into contact with the pressing roller 19. Therefore, the movement of the liquid crystal display panel 10 toward the rotary drum 17 is restricted by the pressing roller 19. Then, the liquid crystal display panel 10 detached from the suction sheet 21 is held on the surface of the stage 11 again.
　次に、図６に示すように、液晶表示パネル１０の他端Ｂ側において、押さえローラ１９を使用位置から退避位置へ上昇させる。その後、図７に示すように、それぞれ退避位置に退避している回転ドラム１７及び押さえローラ１９を、フレーム１３と共に液晶表示パネルの他端Ｂ側から一端Ａ側へ移動させる。こうして、液晶表示パネル１０の表面に偏光板１４を貼り付ける。 Next, as shown in FIG. 6, on the other end B side of the liquid crystal display panel 10, the pressing roller 19 is raised from the use position to the retracted position. Thereafter, as shown in FIG. 7, the rotating drum 17 and the pressing roller 19 that are retracted to the retracted position are moved together with the frame 13 from the other end B side to the one end A side of the liquid crystal display panel. Thus, the polarizing plate 14 is attached to the surface of the liquid crystal display panel 10.
　　－実施形態１の効果－
　したがって、この実施形態１によると、偏光板１４を保持した回転ドラム１７を、ステージ１１に支持された液晶表示パネル１０の表面上でその一端Ａ側から他端Ｂ側へ転動させることより、その液晶表示パネル１０の表面に偏光板１４を貼り付けることができる。そして、回転ドラム１７が液晶表示パネル１０の他端Ｂ側においてその液晶表示パネル１０の表面から離隔する際に、押さえローラ１９によって液晶表示パネル１０の回転ドラム１７側への移動を規制することができる。したがって、従来の偏光板を真空吸着する偏光板貼付装置のように、回転ドラムを液晶表示パネルの表面から離脱させる際に当該回転ドラムから排気を行う必要がないので、排気により舞い上がった粉塵の液晶表示パネル１０と偏光板１４との間への混入を抑制できる。 -Effect of Embodiment 1-
Therefore, according to the first embodiment, by rotating the rotating drum 17 holding the polarizing plate 14 from the one end A side to the other end B side on the surface of the liquid crystal display panel 10 supported by the stage 11, A polarizing plate 14 can be attached to the surface of the liquid crystal display panel 10. When the rotary drum 17 is separated from the surface of the liquid crystal display panel 10 on the other end B side of the liquid crystal display panel 10, the movement of the liquid crystal display panel 10 toward the rotary drum 17 can be restricted by the pressing roller 19. it can. Therefore, unlike the conventional polarizing plate sticking device that vacuum-adsorbs the polarizing plate, it is not necessary to exhaust the rotating drum from the surface of the liquid crystal display panel. Mixing between the display panel 10 and the polarizing plate 14 can be suppressed.
　しかも、液晶表示パネル１０の回転ドラム１７側への移動を押さえローラ１９によって規制したので、液晶表示パネル１０をステージ１１に吸着保持させた状態で、回転ドラム１７を退避位置へ移動させることができる。すなわち、液晶表示パネル１０をステージ１１に確実に支持させた状態で偏光板１４の貼り付け作業を完了させることができる。 In addition, since the movement of the liquid crystal display panel 10 toward the rotary drum 17 is restricted by the pressing roller 19, the rotary drum 17 can be moved to the retracted position while the liquid crystal display panel 10 is sucked and held on the stage 11. . That is, the attaching operation of the polarizing plate 14 can be completed while the liquid crystal display panel 10 is securely supported by the stage 11.
　また、吸着力が比較的弱い吸着シート２１を回転ドラム１７の表面に設けて偏光板１４の貼り付けを行うようにしたので、薄型化された偏光板であっても、当該偏光板に皺が生じないようにして適切に保持することができる。 Further, since the adsorption sheet 21 having a relatively weak adsorption force is provided on the surface of the rotary drum 17 and the polarizing plate 14 is attached, even if the polarizing plate is thinned, the polarizing plate has wrinkles. It can be appropriately held without being generated.
　また、液晶表示パネル１０の他端Ｂ側において、回転ドラム１７を上昇させて退避させるようにしたので、回転ドラム１７を側方に退避させるような場合に比べて装置を設置するスペースを大幅に縮小することが可能になる。 Further, since the rotary drum 17 is lifted and retracted on the other end B side of the liquid crystal display panel 10, the space for installing the device is greatly increased compared to the case where the rotary drum 17 is retracted sideways. It becomes possible to reduce.
　《発明の実施形態２》
　図８～図１６は、本発明の実施形態２を示している。 << Embodiment 2 of the Invention >>
8 to 16 show Embodiment 2 of the present invention.
　図８は、本実施形態２における回転ドラム１７端部の近傍部分を拡大して示す正面図である。図９は、偏光板１４が回転ドラム１７によって保持された偏光板貼付装置１の概略構成を示す側面図である。図１０は、回転ドラム１７が使用位置に下降した偏光板貼付装置１を示す側面図である。 FIG. 8 is an enlarged front view showing the vicinity of the end of the rotating drum 17 in the second embodiment. FIG. 9 is a side view showing a schematic configuration of the polarizing plate pasting apparatus 1 in which the polarizing plate 14 is held by the rotating drum 17. FIG. 10 is a side view showing the polarizing plate pasting apparatus 1 with the rotating drum 17 lowered to the use position.
　図１１は、回転ドラム１７が偏光板１４を貼り付けた直後の偏光板貼付装置１を示す側面図である。図１２は、回転ドラム１７が液晶表示パネル１０から離隔した偏光板貼付装置１を示す側面図である。図１３は、押さえローラ１９が液晶表示パネル１０の表面を転動する偏光板貼付装置１を示す側面図である。 FIG. 11 is a side view showing the polarizing plate pasting apparatus 1 immediately after the rotating drum 17 has pasted the polarizing plate 14. FIG. 12 is a side view showing the polarizing plate pasting apparatus 1 in which the rotating drum 17 is separated from the liquid crystal display panel 10. FIG. 13 is a side view showing the polarizing plate pasting apparatus 1 in which the pressing roller 19 rolls on the surface of the liquid crystal display panel 10.
　図１４は、回転ドラム１７が液晶表示パネル１０の一端Ａ側に戻った偏光板貼付装置１を示す側面図である。図１５は、押さえローラ１９が液晶表示パネル１０の一端Ａ側に戻った偏光板貼付装置１を示す側面図である。図１６は、押さえローラ１９が液晶表示パネル１０の一端Ａ側で上昇した偏光板貼付装置１を示す側面図である。 FIG. 14 is a side view showing the polarizing plate pasting apparatus 1 in which the rotating drum 17 is returned to the one end A side of the liquid crystal display panel 10. FIG. 15 is a side view showing the polarizing plate pasting apparatus 1 in which the pressing roller 19 has returned to the one end A side of the liquid crystal display panel 10. FIG. 16 is a side view showing the polarizing plate pasting apparatus 1 in which the pressing roller 19 is raised on the one end A side of the liquid crystal display panel 10.
　尚、以降の各実施形態では、図１～図７と同じ部分については同じ符号を付して、その詳細な説明を省略する。 In the following embodiments, the same portions as those in FIGS. 1 to 7 are denoted by the same reference numerals, and detailed description thereof is omitted.
　本実施形態２における偏光板貼付装置１は、押さえローラ１９を液晶表示パネル１０の他端Ｂ側に設けるだけでなく、その後に偏光板１４と液晶表示パネル１０との間から気泡を除去するように構成されている。 The polarizing plate pasting apparatus 1 according to the second embodiment not only provides the pressing roller 19 on the other end B side of the liquid crystal display panel 10, but then removes bubbles from between the polarizing plate 14 and the liquid crystal display panel 10. It is configured.
　本実施形態における偏光板貼付装置１は、液晶表示パネル１０を支持するステージ１１と、ステージ１１を挟むように配置された一対のレール部１２と、このレール部１２に設けられた第１フレーム３１及び第２フレーム３２と、第１フレーム３１に回転可能に支持された回転ドラム１７と、第２フレーム３２に回転可能に支持された押さえローラ１９とを備えている。 The polarizing plate pasting apparatus 1 according to the present embodiment includes a stage 11 that supports the liquid crystal display panel 10, a pair of rail portions 12 that are arranged so as to sandwich the stage 11, and a first frame 31 that is provided on the rail portion 12. And a second frame 32, a rotary drum 17 rotatably supported by the first frame 31, and a pressing roller 19 rotatably supported by the second frame 32.
　図８及び図９に示すように、第１及び第２フレーム３１，３２は、それぞれ例えば矩形板状に形成され、レール部１２に支持された状態で、第１フレーム３１同士が対向すると共に、第２フレーム同士が対向するように配置されている。 As shown in FIGS. 8 and 9, the first and second frames 31 and 32 are each formed in, for example, a rectangular plate shape and supported by the rail portion 12, and the first frames 31 face each other, It arrange | positions so that 2nd frames may oppose.
　図８に示すように、第２フレーム３２は、第１フレーム３１の内側に配置されており、第１フレーム３１とは独立してレール部１２上をスライド移動できるようになっている。また、回転ドラム１７は、第１フレーム３１に昇降可能に支持されている。一方、押さえローラ１９は、第２フレーム３２に昇降可能に支持されている。 As shown in FIG. 8, the second frame 32 is arranged inside the first frame 31, and can slide on the rail portion 12 independently of the first frame 31. The rotating drum 17 is supported by the first frame 31 so as to be movable up and down. On the other hand, the pressing roller 19 is supported by the second frame 32 so as to be movable up and down.
　すなわち、回転ドラム１７は、図９～図１２に示すように、ステージ１１及び液晶表示パネル１０の表面から離隔した退避位置と、その下端が液晶表示パネル１０の表面と略同じ高さまで接近した使用位置との間で昇降可能に第１フレーム３１に支持されている。 That is, as shown in FIGS. 9 to 12, the rotary drum 17 is used in a retracted position separated from the surface of the stage 11 and the liquid crystal display panel 10 and the lower end thereof approaching to substantially the same height as the surface of the liquid crystal display panel 10. The first frame 31 is supported so as to be movable up and down between the positions.
　一方、押さえローラ１９は、図１０及び図１６に示すように、ステージ１１及び液晶表示パネル１０の表面から離隔した退避位置と、その下端が液晶表示パネル１０の表面から僅かに浮いた位置まで接近した使用位置との間で昇降可能にフレーム１３に支持されている。さらに、押さえローラ１９は、使用位置と、その下端が液晶表示パネル１０上の偏光板１４表面に接触可能な位置である接触位置との間で昇降可能にフレーム１３に支持されている。 On the other hand, as shown in FIGS. 10 and 16, the pressing roller 19 approaches the retracted position separated from the surface of the stage 11 and the liquid crystal display panel 10, and the position where the lower end slightly floats from the surface of the liquid crystal display panel 10. The frame 13 is supported by the frame 13 so as to be movable up and down. Further, the pressing roller 19 is supported by the frame 13 so as to be movable up and down between a use position and a contact position where the lower end of the press roller 19 is a position where the press roller 19 can contact the surface of the polarizing plate 14 on the liquid crystal display panel 10.
　そうして、押さえローラ１９は、図１３に示すように、回転ドラム１７が液晶表示パネル１０の他端Ｂ側で上昇して液晶表示パネル１０の表面から離隔した状態で、液晶表示パネル１０の表面上を液晶表示パネル１０の他端Ｂ側へ転動するように構成されている。押さえローラ１９は、例えばポリアセタール等の樹脂によって構成されている。 Then, as shown in FIG. 13, the pressing roller 19 is disposed on the liquid crystal display panel 10 in a state where the rotary drum 17 is raised on the other end B side of the liquid crystal display panel 10 and separated from the surface of the liquid crystal display panel 10. It is configured to roll on the surface to the other end B side of the liquid crystal display panel 10. The pressing roller 19 is made of a resin such as polyacetal.
　　－貼付方法－
　次に、上記偏光板貼付装置１による偏光板貼付方法ついて説明する。 -Paste method-
Next, the polarizing plate sticking method by the polarizing plate sticking apparatus 1 will be described.
　まず、図９に示すように、液晶表示パネル１０をステージ１１に支持させる第１工程を行う。このとき、液晶表示パネル１０をステージ１１に真空吸着させて固定する。また、図２に示すように、回転ドラム１７及び押さえローラ１９は、それぞれ退避位置に配置されている。 First, as shown in FIG. 9, the first step of supporting the liquid crystal display panel 10 on the stage 11 is performed. At this time, the liquid crystal display panel 10 is fixed to the stage 11 by vacuum suction. Further, as shown in FIG. 2, the rotating drum 17 and the pressing roller 19 are respectively disposed at the retracted position.
　次に、図９に示すように、回転ドラム１７の回転表面１５に偏光板１４を保持させる第２工程を行う。この第２工程では、回転ドラム１７の回転表面１５に設けた吸着力を有する吸着シート２１によって、大判の偏光板１４を吸着保持させる。 Next, as shown in FIG. 9, a second step of holding the polarizing plate 14 on the rotating surface 15 of the rotating drum 17 is performed. In this second step, the large polarizing plate 14 is sucked and held by the suction sheet 21 having the suction force provided on the rotating surface 15 of the rotary drum 17.
　次に、偏光板１４を液晶表示パネル１０の表面に貼り付ける第３工程を行う。すなわち、図１０に示すように、液晶表示パネル１０の一端Ａ側において、回転ドラム１７及び押さえローラ１９を、それぞれ退避位置から使用位置へ下降させる。 Next, a third step of attaching the polarizing plate 14 to the surface of the liquid crystal display panel 10 is performed. That is, as shown in FIG. 10, on one end A side of the liquid crystal display panel 10, the rotary drum 17 and the pressing roller 19 are respectively lowered from the retracted position to the use position.
　続いて、図１１に示すように、第１及び第２フレーム３１，３２をレール部１２に沿ってスライド移動させることにより、偏光板１４を保持している回転ドラム１７を、ステージ１１に支持された液晶表示パネル１０の表面上で液晶表示パネル１０の一端Ａ側から他端Ｂ側へ転動させる。そのことにより、偏光板１４を液晶表示パネル１０の表面に貼り付ける。このとき、押さえローラ１９は、液晶表示パネル１０の表面から僅かに浮いた状態で、液晶表示パネル１０の一端Ａ側から他端Ｂ側へ移動する。 Subsequently, as shown in FIG. 11, the rotary drum 17 holding the polarizing plate 14 is supported by the stage 11 by sliding the first and second frames 31 and 32 along the rail portion 12. The liquid crystal display panel 10 is rolled from one end A side to the other end B side on the surface of the liquid crystal display panel 10. As a result, the polarizing plate 14 is attached to the surface of the liquid crystal display panel 10. At this time, the pressing roller 19 moves from one end A side to the other end B side of the liquid crystal display panel 10 while slightly floating from the surface of the liquid crystal display panel 10.
　次に、図１２に示すように、偏光板１４を貼り付けた回転ドラム１７を、液晶表示パネル１０の他端Ｂ側において液晶表示パネル１０の表面から離隔させて、退避位置に上昇させる第４工程を行う。この工程では、押さえローラ１９を使用位置に固定しておく。すなわち、押さえローラ１９は、液晶表示パネル１０の他端Ｂ側において、この液晶表示パネル１０の表面から僅かに浮いた状態で固定配置されることから、液晶表示パネル１０の表面に押さえローラ１９を当接可能に配置されることとなる。 Next, as shown in FIG. 12, the rotating drum 17 to which the polarizing plate 14 is attached is separated from the surface of the liquid crystal display panel 10 on the other end B side of the liquid crystal display panel 10 and is raised to the retracted position. Perform the process. In this step, the pressing roller 19 is fixed at the use position. That is, since the pressing roller 19 is fixedly disposed on the other end B side of the liquid crystal display panel 10 in a state of being slightly lifted from the surface of the liquid crystal display panel 10, the pressing roller 19 is placed on the surface of the liquid crystal display panel 10. It will be arrange | positioned so that contact | abutting is possible.
　したがって、回転ドラム１７が使用位置から上昇する際に、その吸着シート２１の吸着力によって液晶表示パネル１０の他端Ｂが引き上げられると、すぐに液晶表示パネル１０の表面が押さえローラ１９に当接するため、この押さえローラ１９によって液晶表示パネル１０の移動が規制される。そして、吸着シート２１から離脱した液晶表示パネル１０は、再びステージ１１の表面に保持されることとなる。 Therefore, when the rotary drum 17 is lifted from the use position, if the other end B of the liquid crystal display panel 10 is pulled up by the suction force of the suction sheet 21, the surface of the liquid crystal display panel 10 immediately comes into contact with the pressing roller 19. Therefore, the movement of the liquid crystal display panel 10 is restricted by the pressing roller 19. Then, the liquid crystal display panel 10 detached from the suction sheet 21 is held on the surface of the stage 11 again.
　次に、偏光板１４と液晶表示パネル１０との間から気泡を除去する第５工程を行う。すなわち、図１３に示すように、押さえローラ１９を使用位置から接触位置まで下降させて、この押さえローラ１９を液晶表示パネル１０上の偏光板１４表面に接触させた状態で、第２フレーム３２をさらに液晶表示パネル１０の他端Ｂ側へ移動させる。 Next, a fifth step of removing bubbles from between the polarizing plate 14 and the liquid crystal display panel 10 is performed. That is, as shown in FIG. 13, with the pressing roller 19 lowered from the use position to the contact position, the second frame 32 is moved with the pressing roller 19 in contact with the surface of the polarizing plate 14 on the liquid crystal display panel 10. Further, the liquid crystal display panel 10 is moved to the other end B side.
　そのことにより、回転ドラム１７が液晶表示パネル１０の他端Ｂ側において液晶表示パネル１０の表面から上昇して離隔した状態で、押さえローラ１９が液晶表示パネル１０の表面上で液晶表示パネル１０の他端Ｂ側へさらに転動する。このことによって、偏光板１４と液晶表示パネル１０との間に気泡が混入していれば、その気泡を外部へ押し出すことが可能となる。 As a result, the pressing roller 19 moves on the surface of the liquid crystal display panel 10 on the surface of the liquid crystal display panel 10 in a state where the rotary drum 17 rises away from the surface of the liquid crystal display panel 10 on the other end B side of the liquid crystal display panel 10. Roll further to the other end B side. As a result, if bubbles are mixed between the polarizing plate 14 and the liquid crystal display panel 10, the bubbles can be pushed out.
　次に、図１４に示すように、退避位置に移動している回転ドラム１７を、第１フレーム３１と共に液晶表示パネル１０の他端Ｂ側から一端Ａ側へ移動させる。次に、図１５に示すように、押さえローラ１９を接触位置から使用位置に上昇させた状態で、第２フレーム３２と共に液晶表示パネル１０の他端Ｂ側から一端Ａ側へ移動させる。その後、図１６に示すように、この液晶表示パネル１０の一端Ａ側において、押さえローラ１９を使用位置から退避位置へ移動させる。こうして、液晶表示パネル１０の表面に偏光板１４を貼り付ける。 Next, as shown in FIG. 14, the rotating drum 17 moving to the retracted position is moved together with the first frame 31 from the other end B side of the liquid crystal display panel 10 to one end A side. Next, as shown in FIG. 15, the press roller 19 is moved from the contact position to the use position and is moved together with the second frame 32 from the other end B side of the liquid crystal display panel 10 to one end A side. Thereafter, as shown in FIG. 16, on one end A side of the liquid crystal display panel 10, the pressing roller 19 is moved from the use position to the retracted position. Thus, the polarizing plate 14 is attached to the surface of the liquid crystal display panel 10.
　　－実施形態２の効果－
　したがって、この実施形態２によっても、液晶表示パネル１０の回転ドラム１７側への移動を規制する押さえローラ１９を設けるようにしたので、上記実施形態１と同様に、液晶表示パネル１０の表面と偏光板１４との間への粉塵の混入を抑制しながらも、その液晶表示パネル１０をステージ１１に確実に支持させた状態で偏光板１４の貼り付け作業を完了させることができる。 -Effect of Embodiment 2-
Therefore, also in the second embodiment, since the pressing roller 19 that restricts the movement of the liquid crystal display panel 10 toward the rotary drum 17 is provided, similarly to the first embodiment, the surface of the liquid crystal display panel 10 and the polarization The sticking operation of the polarizing plate 14 can be completed in a state where the liquid crystal display panel 10 is reliably supported by the stage 11 while suppressing the dust from being mixed with the plate 14.
　ところで、偏光板１４を回転ドラム１７によって貼り付けると、その偏光板１４の貼り終わり部分（つまり液晶表示パネル１０の他端Ｂ側部分）には、液晶表示パネル１０との間に気泡が比較的混入しやすい。これに対し、本実施形態では、回転ドラム１７が退避位置に移動した状態で、押さえローラ１９を液晶表示パネル１０の表面上でその他端Ｂ側へ転動させるようにしたので、偏光板１４と液晶表示パネル１０との間に混入している気泡を外部へ押し出して、当該気泡を除去することができる。 By the way, when the polarizing plate 14 is pasted by the rotating drum 17, there are relatively bubbles between the polarizing plate 14 and the liquid crystal display panel 10 at the pasting end portion (that is, the other end B side portion of the liquid crystal display panel 10). Easy to mix. On the other hand, in this embodiment, the pressing roller 19 is rolled to the other end B side on the surface of the liquid crystal display panel 10 with the rotary drum 17 moved to the retracted position. Bubbles mixed between the liquid crystal display panel 10 can be pushed out to remove the bubbles.
　《発明の実施形態３》
　図１７及び図１８は、本発明の実施形態３を示している。 << Embodiment 3 of the Invention >>
17 and 18 show Embodiment 3 of the present invention.
　図１７は、本実施形態３における回転ドラム１７が偏光板を貼り付けた直後の偏光板貼付装置１の概略構成を示す側面図である。図１８は、回転ドラム１７が液晶表示パネル１０から離隔した偏光板貼付装置１を示す側面図である。 FIG. 17 is a side view showing a schematic configuration of the polarizing plate attaching apparatus 1 immediately after the rotating drum 17 in Embodiment 3 attaches the polarizing plate. FIG. 18 is a side view showing the polarizing plate pasting apparatus 1 in which the rotating drum 17 is separated from the liquid crystal display panel 10.
　上記実施形態１では、１つの規制部材である押さえローラ１９を設けたのに対し、本実施形態２は、第１規制部材２３及び第２規制部材２５を設けた点で相違している。 In the first embodiment, the pressing roller 19 which is one restricting member is provided, but the present embodiment 2 is different in that the first restricting member 23 and the second restricting member 25 are provided.
　すなわち、本実施形態の偏光板貼付装置１は、図１７に示すように、液晶表示パネル１０の他端Ｂ側に配置される第１規制部材としての第１押さえローラ２３と、液晶表示パネル１０の中央部２４に配置される第２規制部材としての第２押さえローラ２５とを有している。 That is, as shown in FIG. 17, the polarizing plate sticking apparatus 1 of the present embodiment includes a first pressing roller 23 as a first regulating member disposed on the other end B side of the liquid crystal display panel 10, and the liquid crystal display panel 10. And a second presser roller 25 as a second restricting member disposed in the central portion 24 of the second control member.
　第１押さえローラ２３は、上記実施形態１と同様の構成を有している。したがって、第１押さえローラ２３は、フレーム１３に支持されると共に、使用位置と退避位置との間で昇降可能に構成されている。 The first pressing roller 23 has the same configuration as that of the first embodiment. Therefore, the first pressing roller 23 is supported by the frame 13 and is configured to be movable up and down between the use position and the retracted position.
　一方、第２押さえローラ２５は、フレーム１３とは別個独立した図示省略のフレームに支持されると共に、ステージ１１及び液晶表示パネル１０の表面から離隔した退避位置と、その下端が液晶表示パネル１０の表面から僅かに浮いた位置まで接近した使用位置との間で昇降可能に構成されている。 On the other hand, the second pressing roller 25 is supported by a frame (not shown) that is independent from the frame 13, is retracted from the surface of the stage 11 and the liquid crystal display panel 10, and has a lower end at the lower end of the liquid crystal display panel 10. It is configured to be able to move up and down between a use position close to a position slightly floating from the surface.
　そうして、第１及び第２押さえローラ２３，２５は、回転ドラム１７が液晶表示パネル１０の他端Ｂ側において使用位置から上昇する際に、それぞれ使用位置に配置させるようになっている。 Thus, the first and second pressing rollers 23 and 25 are arranged at the use positions when the rotary drum 17 rises from the use position on the other end B side of the liquid crystal display panel 10.
　本実施形態における偏光板貼付装置１によって偏光板１４を液晶表示パネル１０に貼り付ける場合には、上記実施形態１と同様に、液晶表示パネル１０をステージ１１に支持させる第１工程と、回転ドラム１７の回転表面１５に偏光板１４を保持させる第２工程とを行う。 When the polarizing plate 14 is pasted to the liquid crystal display panel 10 by the polarizing plate pasting apparatus 1 in the present embodiment, the first step for supporting the liquid crystal display panel 10 on the stage 11 and the rotating drum, as in the first embodiment. The second step of holding the polarizing plate 14 on the rotating surface 15 of 17 is performed.
　第３工程では、第２押さえローラ２５を退避位置に上昇させた状態で、フレーム１３を液晶表示パネル１０の他端Ｂ側へ移動させることにより、回転ドラム１７及び第１押さえローラ２３を液晶表示パネル１０の表面上で液晶表示パネル１０の一端Ａ側から他端Ｂ側へ転動させる。そのことにより、偏光板１４を液晶表示パネル１０の表面に貼り付ける。 In the third step, the rotary drum 17 and the first pressing roller 23 are moved to the liquid crystal display by moving the frame 13 to the other end B side of the liquid crystal display panel 10 with the second pressing roller 25 raised to the retracted position. The liquid crystal display panel 10 is rolled from one end A side to the other end B side on the surface of the panel 10. As a result, the polarizing plate 14 is attached to the surface of the liquid crystal display panel 10.
　次に、第４工程では、液晶表示パネル１０の他端Ｂ側に第１押さえローラ２３を配置させると共に、液晶表示パネル１０の中央部２４に第２押さえローラ２５を配置させる。すなわち、図１７に示すように、まず、第１押さえローラ２３を使用位置に固定しておくと共に、第２押さえローラ２５を退避位置から使用位置に降下させる。続いて、図１８に示すように、回転ドラム１７を、液晶表示パネル１０の他端Ｂ側において液晶表示パネル１０の表面から離隔させて、退避位置に上昇させる。 Next, in the fourth step, the first pressing roller 23 is disposed on the other end B side of the liquid crystal display panel 10 and the second pressing roller 25 is disposed in the central portion 24 of the liquid crystal display panel 10. That is, as shown in FIG. 17, first, the first pressing roller 23 is fixed at the use position, and the second pressing roller 25 is lowered from the retracted position to the use position. Subsequently, as shown in FIG. 18, the rotary drum 17 is moved away from the surface of the liquid crystal display panel 10 on the other end B side of the liquid crystal display panel 10 and raised to the retracted position.
　したがって、回転ドラム１７が使用位置から上昇する際に、その吸着シート２１の吸着力によって液晶表示パネル１０の他端Ｂが引き上げられると、すぐに液晶表示パネル１０の表面が第１及び第２押さえローラ２３，２５に当接するため、この第１及び第２押さえローラ２３，２５によって液晶表示パネル１０の回転ドラム１７側への移動が規制される。そして、吸着シート２１から離脱した液晶表示パネル１０は、再びステージ１１の表面に保持される。 Accordingly, when the rotary drum 17 is lifted from the use position, if the other end B of the liquid crystal display panel 10 is pulled up by the suction force of the suction sheet 21, the surface of the liquid crystal display panel 10 is immediately pressed against the first and second pressers. Since the first and second pressing rollers 23 and 25 are in contact with the rollers 23 and 25, the movement of the liquid crystal display panel 10 toward the rotary drum 17 is restricted. Then, the liquid crystal display panel 10 detached from the suction sheet 21 is held on the surface of the stage 11 again.
　次に、第１及び第２押さえローラ２３，２５をそれぞれ使用位置から退避位置へ上昇させる。その後、それぞれ退避位置に退避している回転ドラム１７及び第１押さえローラ２３を、フレーム１３と共に液晶表示パネルの他端Ｂ側から一端Ａ側へ移動させる。こうして、液晶表示パネル１０の表面に偏光板１４を貼り付ける。 Next, the first and second pressing rollers 23 and 25 are raised from the use position to the retracted position, respectively. Thereafter, the rotating drum 17 and the first pressing roller 23 retracted to the retracted position are moved together with the frame 13 from the other end B side to the one end A side of the liquid crystal display panel. Thus, the polarizing plate 14 is attached to the surface of the liquid crystal display panel 10.
　　－実施形態３の効果－
　したがって、この実施形態３によっても、液晶表示パネル１０の回転ドラム１７側への移動を規制する第１及び第２押さえローラ２３，２５を設けるようにしたので、上記実施形態１と同様に、液晶表示パネル１０の表面と偏光板１４との間への粉塵の混入を抑制しながらも、その液晶表示パネル１０をステージ１１に確実に支持させた状態で偏光板１４の貼り付け作業を完了させることができる。 -Effect of Embodiment 3-
Therefore, also in the third embodiment, the first and second pressing rollers 23 and 25 for restricting the movement of the liquid crystal display panel 10 toward the rotary drum 17 are provided, so that the liquid crystal is the same as in the first embodiment. Completing the attaching operation of the polarizing plate 14 while the liquid crystal display panel 10 is reliably supported on the stage 11 while suppressing the mixing of dust between the surface of the display panel 10 and the polarizing plate 14. Can do.
　ところで、近年、液晶表示パネルの薄型化が進められており、液晶表示パネル自体が大きく撓みやすくなっている。液晶表示パネルが大きく撓むと、この液晶表示パネルに形成されている回路構成が損傷する虞がある。これに対し、本実施形態では、回転ドラム１７を使用位置から上昇させる際に、液晶表示パネル１０の表面を他端Ｂ側だけでなく中央部２４においても押さえローラ２３，２５によって押さえることが可能であるため、液晶表示パネル１０の撓みを抑制でき、液晶表示パネル１０を好適に保護することができる。 By the way, in recent years, the liquid crystal display panel has been made thinner, and the liquid crystal display panel itself is greatly bent easily. If the liquid crystal display panel is greatly bent, the circuit configuration formed on the liquid crystal display panel may be damaged. In contrast, in the present embodiment, when the rotary drum 17 is raised from the use position, the surface of the liquid crystal display panel 10 can be pressed by the pressing rollers 23 and 25 not only at the other end B side but also at the central portion 24. Therefore, the bending of the liquid crystal display panel 10 can be suppressed, and the liquid crystal display panel 10 can be suitably protected.
　《その他の実施形態》
　上記各実施形態では、規制部材をローラ部材によって構成した例について説明したが、その他の形状の部材によって規制部材を構成することが可能である。しかしながら、上記実施形態２のように偏光板１４の表面を転動させて気泡を抜くような場合には、ローラ部材によって規制部材を構成することが好ましい。 << Other Embodiments >>
In each of the above embodiments, the example in which the regulating member is configured by the roller member has been described. However, the regulating member can be configured by a member having another shape. However, in the case where the surface of the polarizing plate 14 is rolled to remove bubbles as in the second embodiment, it is preferable that the regulating member is configured by a roller member.
　また、上記各実施形態では、回転ドラム１７が吸着シート２１によって偏光板１４を吸着保持する例について説明したが、本発明はこれに限らず、回転ドラムの外周部分に多孔質の弾性体からなる吸着部を設けた構成とし、偏光板を吸着部に真空吸着させて保持するようにしてもよい。 In each of the above embodiments, the example in which the rotating drum 17 sucks and holds the polarizing plate 14 by the suction sheet 21 has been described. However, the present invention is not limited thereto, and the outer peripheral portion of the rotating drum is made of a porous elastic body. A configuration in which a suction portion is provided may be used, and the polarizing plate may be vacuum-sucked and held on the suction portion.
　また、本発明は上記実施形態１～３に限定されるものでなく、本発明には、これらの実施形態１～３を適宜組み合わせた構成が含まれる。 Further, the present invention is not limited to the above-described first to third embodiments, and the present invention includes a configuration in which these first to third embodiments are appropriately combined.
　以上説明したように、本発明は、偏光板貼付装置及び偏光板貼付方法について有用である。 As described above, the present invention is useful for a polarizing plate sticking apparatus and a polarizing plate sticking method.
　　　　　　１　　　偏光板貼付装置 
　　　　　１０　　　液晶表示パネル 
　　　　　１１　　　ステージ 
　　　　　１４　　　偏光板 
　　　　　１５　　　回転表面 
　　　　　１７　　　回転ドラム 
　　　　　１９　　　押さえローラ（規制部材）
　　　　　２１　　　吸着シート 
　　　　　２３　　　第１押さえローラ（第１規制部材） 
　　　　　２４　　　中央部 
　　　　　２５　　　第２押さえローラ（第２規制部材） 　　 1 Polarizer sticking device
10 Liquid crystal display panel
11 stages
14 Polarizing plate
15 Rotating surface
17 Rotating drum
19 Pressing roller (regulating member)
21 Adsorption sheet
23 First pressing roller (first regulating member)
24 center
25 Second pressing roller (second regulating member)

Claims (12)

  1. 　液晶表示パネルを支持するステージと、
    　偏光板を保持する回転表面を有し、上記ステージに支持された液晶表示パネルの表面上で該液晶表示パネルの一端側から他端側へ転動することにより、保持していた上記偏光板を上記液晶表示パネルの表面に貼り付ける回転ドラムと、
    　上記回転ドラムが上記液晶表示パネルの他端側において該液晶表示パネルの表面から離隔する際に、上記液晶表示パネルの上記回転ドラム側への移動を規制する規制部材とを備えている
    ことを特徴とする偏光板貼付装置。     A stage for supporting a liquid crystal display panel;
    A rotating surface for holding a polarizing plate, and rolling on the surface of the liquid crystal display panel supported by the stage from one end side to the other end side of the liquid crystal display panel, thereby holding the polarizing plate held A rotating drum attached to the surface of the liquid crystal display panel;
    And a regulating member that regulates movement of the liquid crystal display panel to the rotating drum side when the rotating drum is separated from the surface of the liquid crystal display panel on the other end side of the liquid crystal display panel. A polarizing plate sticking device.
  2. 　請求項１に記載された偏光板貼付装置において、
    　上記ステージを挟むように配置されたレール部と、
    　上記レール部にスライド移動可能に支持されると共に、上記回転ドラムを回転可能に且つ昇降可能に支持するフレームとをさらに備え、
    　上記規制部材は、上記フレームに支持されている
    ことを特徴とする偏光板貼付装置。     In the polarizing plate pasting device according to claim 1,
    A rail portion arranged to sandwich the stage;
    A frame that is slidably supported by the rail portion, and that supports the rotating drum so as to be rotatable and liftable; and
    The polarizing plate pasting device, wherein the regulating member is supported by the frame.
  3. 　請求項１に記載された偏光板貼付装置において、
    　上記ステージを挟むように配置されたレール部と、
    　上記レール部にスライド移動可能に支持されると共に、上記回転ドラムを回転可能に且つ昇降可能に支持する第１フレームと、
    　上記レール部に上記第１フレームとは独立してスライド移動可能に支持されると共に、上記規制部材を回転可能に且つ昇降可能に支持する第２フレームとをさらに備えている
    ことを特徴とする偏光板貼付装置。     In the polarizing plate pasting device according to claim 1,
    A rail portion arranged to sandwich the stage;
    A first frame that is slidably supported on the rail portion, and that supports the rotating drum so as to be rotatable and movable up and down;
    The polarized light further comprising a second frame that is supported by the rail portion so as to be slidable independently of the first frame, and that supports the regulating member so as to be rotatable and movable up and down. Board sticking device.
  4. 　請求項３に記載された偏光板貼付装置において、
    　上記規制部材は、上記回転ドラムが上記液晶表示パネルの他端側で上昇して該液晶表示パネルの表面から離隔した状態で、上記液晶表示パネルの表面上を上記他端側へ転動するように構成されている
    ことを特徴とする偏光板貼付装置。     In the polarizing plate sticking device according to claim 3,
    The regulating member rolls on the surface of the liquid crystal display panel to the other end side in a state where the rotating drum is raised on the other end side of the liquid crystal display panel and separated from the surface of the liquid crystal display panel. The polarizing plate sticking apparatus characterized by being comprised in this.
  5. 　請求項１乃至４の何れか１つに記載された偏光板貼付装置において、
    　上記回転ドラムの回転表面には、吸着力を有する吸着シートが設けられている
    ことを特徴とする偏光板貼付装置。     In the polarizing plate sticking device according to any one of claims 1 to 4,
    A polarizing plate sticking apparatus, wherein a rotating sheet of the rotating drum is provided with an adsorbing sheet having an adsorbing force.
  6. 　請求項１乃至５の何れか１つに記載された偏光板貼付装置において、
    　上記規制部材はローラ部材によって構成され、
    　上記ローラ部材は、上記回転ドラムが上記液晶表示パネルの他端側において該液晶表示パネルの表面から離隔した状態で、上記液晶表示パネルの表面上を該液晶表示パネルの他端側へ転動するように構成されている
    ことを特徴とする偏光板貼付装置。     In the polarizing plate sticking device according to any one of claims 1 to 5,
    The restriction member is constituted by a roller member,
    The roller member rolls on the surface of the liquid crystal display panel to the other end side of the liquid crystal display panel in a state where the rotating drum is separated from the surface of the liquid crystal display panel on the other end side of the liquid crystal display panel. A polarizing plate pasting apparatus, which is configured as described above.
  7. 　請求項１乃至６の何れか１つに記載された偏光板貼付装置において、
    　上記規制部材は、上記液晶表示パネルの他端側に配置される第１規制部材と、上記液晶表示パネルの中央部に配置される第２規制部材とを有している
    ことを特徴とする偏光板貼付装置。     In the polarizing plate affixing device according to any one of claims 1 to 6,
    The polarizing member having a first restricting member disposed on the other end side of the liquid crystal display panel and a second restricting member disposed in a central portion of the liquid crystal display panel. Board sticking device.
  8. 　液晶表示パネルをステージに支持させる第１工程と、
    　回転ドラムの回転表面に偏光板を保持させる第２工程と、
    　上記偏光板を保持した回転ドラムを、上記ステージに支持された液晶表示パネルの表面上で該液晶表示パネルの一端側から他端側へ転動させることにより、上記偏光板を上記液晶表示パネルの表面に貼り付ける第３工程と、
    　上記偏光板を貼り付けた上記回転ドラムを、上記液晶表示パネルの他端側で上昇させて該液晶表示パネルの表面から離隔させる第４工程とを有し、
    　上記第４工程では、上記液晶表示パネルの上記回転ドラム側への移動を規制部材によって規制する
    ことを特徴とする偏光板貼付方法。     A first step of supporting the liquid crystal display panel on the stage;
    A second step of holding the polarizing plate on the rotating surface of the rotating drum;
    The rotating drum holding the polarizing plate is rolled from one end side to the other end side of the liquid crystal display panel on the surface of the liquid crystal display panel supported by the stage, so that the polarizing plate of the liquid crystal display panel is A third step of attaching to the surface;
    A fourth step in which the rotating drum with the polarizing plate attached is raised on the other end side of the liquid crystal display panel and separated from the surface of the liquid crystal display panel;
    In the fourth step, the polarizing plate pasting method, wherein the movement of the liquid crystal display panel to the rotating drum side is regulated by a regulating member.
  9. 　請求項８に記載された偏光板貼付方法において、
    　上記第４工程の後に、上記回転ドラムが上記液晶表示パネルの他端側で上昇して該液晶表示パネルの表面から離隔した状態で、上記規制部材を上記液晶表示パネルの表面上を上記他端側へ転動させる第５工程を行う
    ことを特徴とする偏光板貼付方法。     In the polarizing plate sticking method according to claim 8,
    After the fourth step, in a state where the rotating drum is raised on the other end side of the liquid crystal display panel and is separated from the surface of the liquid crystal display panel, the regulating member is placed on the surface of the liquid crystal display panel. A polarizing plate pasting method comprising performing a fifth step of rolling to the side.
  10. 　請求項８又は９に記載された偏光板貼付方法において、
    　上記第２工程では、上記回転ドラムの回転表面に設けた吸着力を有する吸着シートによって、上記偏光板を吸着保持させる
    ことを特徴とする偏光板貼付方法。     In the polarizing plate sticking method according to claim 8 or 9,
    In the second step, the polarizing plate attaching method, wherein the polarizing plate is adsorbed and held by an adsorbing sheet having an adsorbing force provided on a rotating surface of the rotating drum.
  11. 　請求項８乃至１０の何れか１つに記載された偏光板貼付方法において、
    　上記第４工程の後に、上記回転ドラムが上記液晶表示パネルの他端側において該液晶表示パネルの表面から離隔した状態で、ローラ部材によって構成された上記規制部材を、上記液晶表示パネルの表面上で該液晶表示パネルの他端側へ転動させる第５工程を行う
    ことを特徴とする偏光板貼付方法。     In the polarizing plate sticking method as described in any one of Claims 8 thru | or 10,
    After the fourth step, the regulating member constituted by a roller member is placed on the surface of the liquid crystal display panel in a state where the rotating drum is separated from the surface of the liquid crystal display panel on the other end side of the liquid crystal display panel. And performing a fifth step of rolling the liquid crystal display panel to the other end side.
  12. 　請求項８乃至１１の何れか１つに記載された偏光板貼付方法において、
    　上記第４工程では、上記液晶表示パネルの他端側に第１規制部材を配置させると共に、上記液晶表示パネルの中央部に第２規制部材を配置させる
    ことを特徴とする偏光板貼付方法。     In the polarizing plate sticking method as described in any one of Claims 8 thru | or 11,
    In the fourth step, a polarizing plate pasting method, wherein a first regulating member is arranged on the other end side of the liquid crystal display panel, and a second regulating member is arranged in a central portion of the liquid crystal display panel.
PCT/JP2012/002541 2011-04-18 2012-04-12 Polarizing plate attachment device and polarization plate attachment method WO2012144169A1 (en)

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