WO2019064620A1 - Procédé de production de stratifié de dispositif d'affichage optique - Google Patents

Procédé de production de stratifié de dispositif d'affichage optique Download PDF

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Publication number
WO2019064620A1
WO2019064620A1 PCT/JP2018/004175 JP2018004175W WO2019064620A1 WO 2019064620 A1 WO2019064620 A1 WO 2019064620A1 JP 2018004175 W JP2018004175 W JP 2018004175W WO 2019064620 A1 WO2019064620 A1 WO 2019064620A1
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WO
WIPO (PCT)
Prior art keywords
liquid crystal
crystal panel
optical film
film sheet
bonding
Prior art date
Application number
PCT/JP2018/004175
Other languages
English (en)
Japanese (ja)
Inventor
田村　宜之
祐樹 矢野
孝二 秋山
誓大 藤原
Original Assignee
日東電工株式会社
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
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Application filed by 日東電工株式会社 filed Critical 日東電工株式会社
Priority to KR1020207001763A priority Critical patent/KR102160932B1/ko
Priority to CN201880053548.9A priority patent/CN111033367B/zh
Publication of WO2019064620A1 publication Critical patent/WO2019064620A1/fr

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    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C63/00—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor
    • B29C63/02—Lining or sheathing, i.e. applying preformed layers or sheathings of plastics; Apparatus therefor using sheet or web-like material
    • 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
    • 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

Definitions

  • the present invention relates to a method of manufacturing a stack of optical display devices. More specifically, the present invention is a laminate of an optical display device by laminating an optical film sheet including a polarizing film on both sides of a rectangular liquid crystal panel such that the absorption axes are in a cross nicol relationship.
  • a method of manufacturing wherein on the other surface of the liquid crystal panel, an optical film sheet including another polarizing film having a width or a length corresponding to the width or length of the liquid crystal panel is pre-laminated on one surface of the liquid crystal panel
  • the present invention relates to a method for producing a laminate in which an optical film sheet including a polarizing film is laminated so as to be exposed from the other side except for one side of the long side of the liquid crystal panel.
  • a roll-to-panel (RTP) type manufacturing method is adopted at the manufacturing site of an optical display device (for example, Patent Document 1).
  • an optical display is usually manufactured as follows. First, an optical film laminate having a predetermined width is unrolled from a roll.
  • the optical film laminate comprises an optical film including a carrier film, an adhesive layer formed on one side of the carrier film, and a polarizing film supported on the carrier film via the adhesive layer.
  • the optical film may be a single layer or multiple layers.
  • an optical film sheet including a polarizing film is generally formed between adjacent perforation lines by continuously inserting perforation lines in the width direction.
  • the optical film sheet containing the polarizing film continuously supported on the carrier film is peeled from the carrier film together with the pressure-sensitive adhesive layer by the peeling means disposed near the bonding position and sent to the bonding position.
  • the peeling means the carrier film side of the optical film laminate is wound on the top of a substantially wedge-shaped peeling means having a top facing the bonding position.
  • the optical film sheet is peeled off together with the pressure-sensitive adhesive layer from the carrier film by conveying the carrier film wound around the peeling means in a direction substantially opposite to the conveyance direction of the optical film toward the bonding position.
  • the optical film sheet that has reached the bonding position is bonded to the corresponding bonding surface of the panel separately transported to the bonding position along the transport path by the bonding means having a pair of bonding rollers.
  • a laminate of an optical display device is manufactured by sequentially laminating optical film sheets including polarizing films on both sides of the liquid crystal panel such that the absorption axis has a cross nicol relationship. .
  • liquid crystal panel in which the optical film sheet is bonded to one surface is bonded to the other surface with the optical film sheet larger than the liquid crystal panel, and the excess portion of the optical film sheet protruding from the end of the other surface of the liquid crystal panel is liquid crystal
  • An optical display laminate manufacturing technology has been proposed that separates along the edge of the panel, thereby narrowing the liquid crystal display area.
  • the step of separating the surplus portion is performed in a series of manufacturing apparatuses. Specifically, surplus portions of the optical film sheet sequentially bonded to both sides of the liquid crystal panel in the manufacturing apparatus are laminated in a state of being out of all four sides of both sides of the liquid crystal panel each time, and the manufacturing apparatus In the optical display device obtained as a product from the above, all surplus portions of the four sides from both sides of the liquid crystal panel are cut along the ends of both sides of the liquid crystal panel, and the optical film sheet has a size corresponding to the bonding surface Is a laminated body.
  • Patent Document 3 or Patent Document 4 a production system is proposed in which an optical film sheet is protruded and bonded to only one surface of a liquid crystal panel, and is bonded to the other surface of the liquid crystal panel without protruding the optical film sheet. There is. These are performed by the separation process of a series of production systems, as in the case of Patent Document 2, for the surplus part pasted out and bonded to only one surface of the liquid crystal panel.
  • the surplus portion of the optical film sheet to be bonded to one side of the liquid crystal panel is laminated in a state of protruding from all four sides of the liquid crystal panel, and an optical display obtained as a product from the production system
  • the optical film sheet to be bonded to the other side of the liquid crystal panel is not to stick out Because they are combined, each of the optical film sheets on both sides of the liquid crystal panel has a size corresponding to the bonding surface of the liquid crystal panel, and becomes a laminate similar to the case of Patent Document 2.
  • the laminate of the optical display device is bonded along the reference line (alignment mark) so that the absorption axes of the polarizing films of the optical film sheet laminated on both sides of the liquid crystal panel are in a cross nicol relationship. It is for the light shutter function of the optical display.
  • the polarizing film of the optical film sheet also includes a display area, and has a size of an area on or above the black matrix inside the liquid crystal panel.
  • the laminate structure of the optical display device is, as shown in the schematic view of FIG. 2, at least on the CF side which is the viewing side of one surface 51 of a liquid crystal panel including a glass substrate having color filters interposed on both surfaces of the liquid crystal. It consists of a member on the TFT side which becomes the non-viewing side of the other surface 52 of the liquid crystal panel including the glass substrate in which the member and the light distribution film and the transparent electrode are interposed.
  • one side of the long side of the other surface 52 of the liquid crystal panel is on one side of a projecting portion in which the terminal portion 50 incorporating the transparent electrode is protruded from the corresponding one side of one surface of the liquid crystal panel It becomes the structure provided.
  • the frame-free optical display device is obtained by bonding the liquid crystal panel and the optical film sheet in a state in which the optical film sheet is protruded from the end of the liquid crystal panel in the manufacturing method of the RTP method. This is achieved by separating the excess portion that has run off from the end of the liquid crystal panel.
  • Patent Documents 2 to 4 when the excess portion of the peripheral edge is cut off after sticking out after sticking out from the end of the liquid crystal panel in a series of production lines, all excess portions are precisely cut off Productivity significantly decreases.
  • the liquid crystal panel and the optical film sheet After the liquid crystal panel and the optical film are pasted together in a state where they are projected from the four sides of both sides of the panel, the absorption axis of the polarizing film has a cross nicol relationship when it is an optical film sheet including a polarizing film. It becomes difficult to confirm the alignment mark which becomes the reference point of the display area of the liquid crystal panel. Therefore, it becomes difficult to align the optical film sheet including the liquid crystal panel and the polarizing film.
  • Patent Documents 3 and 4 the optical film on the CF side on the visible side after sticking out the optical film sheet from the four sides to the TFT side on the non-view side of the liquid crystal panel. Only the thing of the structure which pastes together without letting a sheet go out is disclosed.
  • Patent Documents 3 and 4 after the optical film sheet is bonded without sticking out the TFT film side on the non-viewing side of the liquid crystal panel, the optical film sheet is protrudingly bonded to the CF side on the viewing side of the liquid crystal panel
  • the laminate of is not disclosed. Moreover, it is not a laminate of optical display devices that meets the above-mentioned customer needs.
  • a further technical issue is that even if the optical film sheet is protruded to the CF side which becomes the visible side of the liquid crystal panel and the surplus portion is all four sides of the laminate of the optical display device, the customer himself is in a separate process When removing an extra portion of the peripheral edge, wipe off the risk of damaging the terminal portion incorporating the transparent electrode provided on the viewing side of the protrusion projecting from the corresponding one side on the non-viewing side of the liquid crystal panel I can not do it either.
  • the present invention is realized by challenging such technical problems.
  • the CF on the liquid crystal panel side is the visual side of the liquid crystal panel in which an optical film sheet having a width or a length corresponding to the width or length of the liquid crystal panel is bonded to the non-view side TFT side Bonding together so that the optical film sheet does not cover the terminal part on one side of the long side of the liquid crystal panel on the other side, and that the other side of the long side of the liquid crystal panel is removed except for one side
  • the CF on the liquid crystal panel side is the visual side of the liquid crystal panel in which an optical film sheet having a width or a length corresponding to the width or length of the liquid crystal panel is bonded to the non-view side TFT side Bonding together so that the optical film sheet does not cover the terminal part on one side of the long side of the liquid crystal panel on the other side, and that the other side of the long side of the liquid crystal panel is removed except for one side
  • the step of separating the surplus portion of the optical film sheet laminated from the liquid crystal panel is carried out as appropriate separately from the method of manufacturing the laminated body of the optical display device.
  • Productivity can be greatly improved.
  • the optical film sheet on the TFT side on the non-viewing side of the liquid crystal panel and the optical film sheet on the CF side on the viewing side are both made of polarizing films. It becomes a cross nicol relationship only where they overlap.
  • the optical film sheet on the CF side which is the viewing side is transmitted to easily read the alignment mark of the liquid crystal panel, the edge of the liquid crystal panel, etc. It is possible to realize an accurate separation process of the surplus part.
  • the optical film sheet is laminated on the surface on the CF side, which is the viewing side when the optical display device is assembled, so that the other side except the one side of the long side of the liquid crystal panel is exposed, It is also possible to make the visible side no frame.
  • the device 1 is a second bonding that performs the pretreatment process of the present invention in which the liquid crystal panel 5 adsorbed and fixed to the alignment means 81 of the second bonding device 200 from the upstream process is transported along the transport path 30.
  • the second optical film sheet 20 is bonded in advance to the joining device 200 and the other surface 52 of the liquid crystal panel 5 after the pretreatment process (FIG.
  • the first optical film sheet 10 is bonded to one surface 51 of the liquid crystal panel 5 which is conveyed along the reference numeral 30 and conveyed by suction and fixed to the alignment means 80 during the process (FIG. 2), and optical display
  • the 1st bonding apparatus 100 which manufactures the laminated body 6 of an apparatus. It is shown in the enlarged schematic of FIG. Moreover, the manufactured laminated body 6 is further sent to downstream processes, such as a test process.
  • the first optical film sheet 10 adheres to one surface 51 of the rectangular liquid crystal panel 5 in which the terminal portion 50 is formed on one side of the long side shown in FIG.
  • the first optical film laminate of the continuous web configured to be continuously supported by the first carrier film 2 of the continuous web by the agent layer is unrolled from the roll R1, and the first optical film sheet 10 is The pressure-sensitive adhesive layer is peeled off from the first carrier film 2 of the continuous web taken up on the roll R 2 through the peeling means 60 and sent to the first application position 101. Therefore, the second optical film sheet 10 is not separated from the other surface 52 of the liquid crystal panel 5 separately transported along the transport path 30 to the first bonding position 101.
  • the present invention is a method of manufacturing a laminate 6 of an optical display device thereby.
  • the liquid crystal panel comprised in the state which bonded the 2nd optical film sheet 20 beforehand so that it might not come out from the other surface 52 of the liquid crystal panel 5 separately conveyed along the conveyance path to the 1st sticking position 101. 5 is pre-processed in the 2nd bonding apparatus 200 shown by FIG. 1 based on the following method. That is, the second optical film sheet 20 having a width or length corresponding to the width or length of the other surface 52 of the liquid crystal panel 5 is continuously supported on the second carrier film 3 via the adhesive layer.
  • the second optical film laminate of the continuous web constituted in the separated state is fed out from the roll R 3, and the second optical film sheet 20 is wound on the roll R 4 through the peeling means 61 to obtain the second continuous web From the carrier film 3 to the other side 52 of the liquid crystal panel 5 which is separated along with the adhesive path from the carrier film 3 and sent to the second bonding position 201 and transported to the second bonding position 201 separately from the other side 52 It consists of the process of bonding together beforehand so that it may not come out.
  • One aspect of the present invention is a first optical film of a continuous web, in which the first optical film sheet 10 is continuously supported on the first carrier film 2 of the continuous web by an adhesive layer.
  • the roll R1 of the laminate is unwound, and the first optical film sheet 10 is peeled off from the first carrier film 2 of the continuous web together with the pressure-sensitive adhesive layer and sent to the first sticking position 101, and the first sticking position
  • the liquid crystal panel 5 is adjusted to the first temporary reference position ⁇ 1 so that the center line 500 of the liquid crystal panel 5 coincides with the center line 600 of the transport path 30, and the panel detection unit 150 further The reference point 53 of the panel 5 is read, and the liquid crystal panel 5 is readjusted to the first reference position ⁇ 1 based on the first reference information 54 preset in the panel detection unit 150.
  • the sheet detection means 90 detects the position of the first optical film sheet 10, and the amount ⁇ of deviation from the liquid crystal panel 5 readjusted to the first reference position ⁇ 1 (see FIG.
  • the first related position information 55 is calculated by adding the adjustment amount y1 (FIG. 9) of the first optical film sheet adjusted to.
  • the first bonding step C1 associated therewith transports the readjusted liquid crystal panel 5 from the first reference position ⁇ 1 to the first bonding position 101, and at the first bonding position 101, the first related position information 55
  • the liquid crystal panel 5 is formed so that the first optical film sheet 10 does not cover the terminal portion 50 of the liquid crystal panel 5, and the other side of the long side of the liquid crystal panel 5 except for one side
  • This is a step of aligning and bonding to the first optical film sheet 10.
  • Another aspect of the present invention is a method of manufacturing a first optical film sheet in which the first optical film sheet 10 is continuously supported by the adhesive layer on the first carrier film 2 of the continuous web.
  • the roll R1 of the film laminate is fed out, and the first optical film sheet 10 is peeled off from the first carrier film 2 of the continuous web together with the adhesive layer and sent to the first sticking position 101, and the first sticking One surface 51 of the liquid crystal panel 5 configured in a state where the second optical film sheet 20 is bonded so that the second optical film sheet 20 is not to be exposed from the other surface 52 of the rectangular liquid crystal panel 5 transported along the transport path 30 to the position 101
  • the optical display device is bonded so as not to cover the terminal portion 50 formed on one side of the long side of the liquid crystal panel 5 and to leave the other side excluding the one side of the long side.
  • the liquid crystal panel 5 is moved to the second temporary reference position ⁇ 2 so as to move the center line 500 of the liquid crystal panel 5 in parallel from the center line 600 of the transport path 30 by the adjustment amount y1 set in advance. Adjusting, and further reading the reference point 53 of the liquid crystal panel 5 by the panel detection means 150, and re-adjusting the liquid crystal panel 5 to the second reference position ⁇ 2 based on the second reference information 56 preset in the panel detection means 150. It is.
  • the second position detection step B2 related thereto detects the position of the first optical film sheet 10 by the sheet detection means 90, and calculates the shift amount ⁇ with the liquid crystal panel 5 readjusted to the second reference position ⁇ 2.
  • a second optical film sheet 20 having a width or a length corresponding to the width or the length of the other surface of the liquid crystal panel 5 has an adhesive layer formed on the second carrier film 3.
  • the other layer 52 of the liquid crystal panel 5 separately transported along the transport path 30 to the second bonding position 201 by peeling off the layer together with the agent layer and sending it to the second bonding position 201; It can be pasted together beforehand so that it does not occur.
  • a second bonding apparatus including a pretreatment step of bonding the second optical film sheet so as not to stick out on the other side of the liquid crystal panel of the present invention, and a second bonding apparatus not to leave the other side of the liquid crystal panel
  • One side of the long side of the liquid crystal panel is set so that the first optical film sheet does not cover the terminal portion of the liquid crystal panel on one side of the liquid crystal panel configured in a state where the optical film sheet 20 is bonded.
  • FIG. 1 It is a schematic diagram showing the structure of the liquid crystal panel which comprises the laminated body of the optical display apparatus of this invention. It is an expansion schematic diagram of the 1st bonding apparatus of FIG. It is a schematic diagram of process drawing showing one embodiment of the method of manufacturing the laminated body of the optical display apparatus of this invention. It is a flowchart showing the process drawing of FIG. It is a schematic diagram of the flowchart showing the other embodiment of the method of manufacturing the laminated body of the optical display apparatus of this invention. It is a flowchart showing the process drawing of FIG.
  • the present invention as one aspect thereof, is shown in the steps (a) to (g) of FIG. 4 with partially overlapping steps, and the corresponding operations in the flow diagrams (i) to (viii) of FIG. Be
  • the present invention adjusts the center line 500 of the liquid crystal panel 5 including the steps (a) to (e) so as to coincide with the center line 600 of the transport path 30 of the liquid crystal panel 5; Center line 500 of liquid crystal panel 5 and roll of first optical film laminate including first position detection step B1 of first optical film sheet 10 including (e) and steps (f) and (g) A first optical film sheet 10 is bonded to one surface 51 of the liquid crystal panel 5 after position adjustment with the center line 700 of the first optical film sheet 10 supported by the first carrier film 2 drawn out from R1. And a bonding step C1 of
  • the liquid crystal panel 5 is conveyed to the first attachment position 101 in a state of being shifted from the center line 600 of the conveyance path 30.
  • Ru the steps (b) and (c) correspond to the operation of the flow diagram (i), and temporarily stop the liquid crystal panel 5 conveyed in such a displaced state, and then, for example, as shown in FIG.
  • the position adjusting means 70 is operated to adjust the position of the center line 500 of the liquid crystal panel 5 to the first temporary reference position ⁇ 1 which coincides with the center line 600 of the transport path 30.
  • Step (d) also corresponds to the operation of (ii), where the operation of the position adjusting means 70 is canceled and the liquid crystal panel 5 adjusted is, for example, the alignment means 80 shown in FIG. Is fixed by suction.
  • the first temporary reference position ⁇ 1 and the first reference position ⁇ 1 are correction positions where the first temporary reference position ⁇ 1 matches the center line 500 of the liquid crystal panel 5 with the center line 600 of the transport path 30.
  • the first reference position ⁇ 1 further indicates the position of the liquid crystal panel read by the panel detection unit 150, and indicates the re-corrected position after the correction. This is the operation included in step (e).
  • Step (e) also corresponds to the operation of (iii).
  • the panel detection means 150 reads a reference point 53 such as an alignment mark of the liquid crystal panel 5 and is preset in the panel detection means 150.
  • the liquid crystal panel 5 is readjusted to the first reference position ⁇ 1.
  • Step (e) also corresponds to the operation of (iv) and, in conjunction with the readjustment of the liquid crystal panel 5, as shown in FIG. At 90, the position of the first optical film sheet 10 is detected.
  • the first position detection step B1 consisting of the step (e) associated therewith further corresponds to the operation of the same (v) and (vi), that is to say the operation of the control device 550 and is illustrated in the illustration of FIG.
  • the operation (v) calculates the shift amount ⁇ between the position of the first optical film sheet 10 detected by the sheet detection unit 90 and the position of the liquid crystal panel 5 readjusted to the first reference position ⁇ 1.
  • the liquid crystal panel 5 is not covered by the shift amount ⁇ on the terminal portion 50 on one side of the long side of the liquid crystal panel 5.
  • the first related position information 55 is calculated by adding the adjustment amount y1 of the first optical film sheet 10 which has been adjusted so as to be exposed from the other side excluding the one side of the long side of the first optical film sheet 10.
  • the positions at which steps (a) to (e) of FIG. 4 of the present invention are carried out specifically, the first temporary reference position ⁇ 1 of steps (b) and (c) and the steps of steps (d) and (e)
  • the 1 reference position ⁇ 1 corresponds to the left end position where the panel detection means 150 is installed, as shown in FIG.
  • the position adjusting means 70 performs the operation shown in the flowchart (i) first. Position adjustment is performed to correct the shifted state to the first temporary reference position ⁇ 1.
  • the position-adjusted liquid crystal panel 5 is positioned at the first reference position ⁇ 1 as follows. At this position, the liquid crystal panel 5 is attracted and fixed by the alignment means 80 as the operation (ii). Similarly, in the operation of (iii), the liquid crystal panel 5 in a state of being adsorbed and fixed by abutting against the first reference information 54 preset in the panel detection means 150 is finely readjusted to the first reference position ⁇ 1. Is done. Similarly, as the operation (iv), the first optical film sheet 10 is detected by the sheet detection means 90.
  • the first bonding step C1 including the steps (f) and (g) relating thereto corresponds to the operation shown in the flow diagrams (vii) and (viii) and corresponds to the step (f) (
  • the position where the operation of vii) is performed is selected as appropriate. For example, it can be performed at the first reference position ⁇ 1. It can also be done at the first application position 101. Alternatively, it can be performed at the first sticking adjustment position ⁇ 1 located between these two positions. It is assumed here that the step (f) is performed at the first sticking adjustment position ⁇ 1. Then, in the step (f), the liquid crystal panel 5 readjusted to the first reference position ⁇ 1 is transported to the first attachment adjustment position ⁇ 1 as the operation initially shown in the flow chart (vii).
  • the liquid crystal panel 5 sets the center line 500 of the liquid crystal panel 5 to the center line of the first optical film sheet 10 based on the first related position information 55 calculated by the control device 550 at the first sticking adjustment position ⁇ 1. From 700, it is attached and adjusted to the first optical film sheet 10 so as to translate in parallel by the adjustment amount y1 from the center line 700. Further, the liquid crystal panel 5 thus attached and adjusted is transported to the first attachment position 101.
  • the final step (g) peels off the first carrier film 2 with respect to the liquid crystal panel 5 subjected to adhesion adjustment as shown in FIG. 3 at the first adhesion position 101.
  • the first optical film sheet 10 is not covered by the terminal portion 50 formed on one side of the long side of the liquid crystal panel 5 and on the other side except one side of the long side of the liquid crystal panel 5 It is pasted together so that Hami's quantity y may be taken out from Hami (figure 9).
  • the step (f) is, as the operation shown in the flow chart (vii), sticking adjustment of the liquid crystal panel 5 to the first optical film sheet 10 based on the first related position information 55.
  • the liquid crystal panel 5 is not moved by the sticking adjustment position ⁇ 1 at the first reference position ⁇ 1.
  • the liquid crystal panel 5 can be attached simultaneously with the adjustment of the liquid crystal panel 5 according to the first related position information 55 at the first attachment position 101.
  • the present invention is illustrated in steps (h) to (n) of FIG. 6 with partially overlapping steps, and corresponding operations in the flow diagram (ix) to (xvi) of FIG. Be
  • the center line 500 of the liquid crystal panel 5 including the steps (h) to (n) from the center line 600 of the transport path 30 is a terminal on one side of a preset long side.
  • the position adjustment between the center line 500 of the liquid crystal panel 5 and the center line 700 of the first optical film sheet 10 is performed as shown in FIG. Parallel movement by the adjustment amount y1 of the first optical film sheet 10 which is adjusted so as not to cover the side terminal portion 50 and so as to bring out the other side except the one side of the long side of the liquid crystal panel 5 It is to adjust in advance to the position where it was made to go.
  • the liquid crystal panel 5 is conveyed to the first attachment position 101 in a state of being shifted from the center line 600 of the conveyance path 30.
  • Ru the steps (i) and (j) correspond to the operation shown in the flow chart (ix), and the liquid crystal panel 5 conveyed in a state of being shifted from the center line 700 of the conveyance path 30 by the shift amount ⁇ .
  • the position adjustment means 70 is operated to correct the shift amount ⁇ from the center line 700 of the transport path 30 of the liquid crystal panel 5, and then to the terminal portion 50 on one side of the preset long side.
  • the center line 500 of the liquid crystal panel 5 is conveyed by the adjustment amount y1 of the first optical film sheet 10 which is adjusted so as not to be exposed, and to move from the other side excluding one side of the long side of the liquid crystal panel 5 It translates from the center line 600 of the path 30 and adjusts to the second temporary reference position ⁇ 2.
  • Step (k) corresponds to the operation of the flow diagram (x), where the operation of the position adjusting means 70 is canceled and the liquid crystal panel 5 adjusted is, for example, the alignment means 80 shown in FIG. Is fixed by suction.
  • the second temporary reference position ⁇ 2 and the second reference position ⁇ 2 correct the amount ⁇ of deviation from the center line 700 of the transport path 30 of the liquid crystal panel 5, and then The correction position is obtained by moving the center line 500 of the liquid crystal panel in parallel from the center line 600 of the transport path 30 by the adjustment amount y1, and the second reference position ⁇ 2 further reads the position of the liquid crystal panel by the panel detection unit 150 Indicates the re-corrected position where This is the operation included in step (l).
  • Step (l) also corresponds to the operation of (xi).
  • the panel detection unit 150 reads a reference point 53 such as an alignment mark of the liquid crystal panel 5 and is preset in the panel detection unit 150.
  • the liquid crystal panel 5 is readjusted to the second reference position ⁇ 2.
  • Step (l) also corresponds to the operation of (xii), and in conjunction with the readjustment of the liquid crystal panel 5, as shown in FIG. Thus, the position of the first optical film sheet 10 is detected.
  • the second position detection step B2 consisting of the step (l) related thereto further corresponds to the operation of the same (xiii) and (xiv), as shown in the illustration of FIG.
  • the shift amount ⁇ between the position of the first optical film sheet 10 detected by the sheet detection means 90 and the position of the liquid crystal panel 5 readjusted to the second reference position ⁇ 2 is calculated, and the operation of (xiv)
  • the terminal portion 50 on one side of the long side of the liquid crystal panel 5 is not covered by the shift amount ⁇ , and one side of the long side of the liquid crystal panel 5 is excluded.
  • the second related position information 56 is calculated by taking into account the adjustment amount y1 of the first optical film sheet 10 adjusted so as to be exposed from the other side.
  • the positions at which steps (h) to (l) of FIG. 6 of the present invention are performed specifically, the second temporary reference position ⁇ 2 of steps (i) and (j) and the number of steps (k) and (l)
  • the two reference positions ⁇ 2 correspond to the left end position where the panel detection means 150 shown in FIG. 3 is installed.
  • the position adjusting means 70 performs the operation shown in the flowchart (ix) first. Position adjustment is performed so as to correct the shifted state of the liquid crystal panel, and to move in parallel by a previously set adjustment amount y1.
  • the position-adjusted liquid crystal panel 5 is positioned at the second reference position ⁇ 2 as follows. At this position, the liquid crystal panel 5 is attracted and fixed by the alignment means 80 as the operation (x). Similarly, in the operation of (xi), the liquid crystal panel 5 in a state of being suctioned and fixed by abutting on the second reference information 56 set in advance in the panel detection means 150 is finely readjusted to the second temporary reference position ⁇ 2. Is done. Similarly, as the operation (xii), the first optical film sheet 10 is detected by the sheet detection means 90.
  • the second bonding step C2 including the steps (m) and (n) relating thereto corresponds to the operations shown in the flow diagrams (xv) and (xvi) and corresponds to the step (m) (
  • the position where the operation of xv) is performed is selected as appropriate. For example, it can be at the second reference position ⁇ 2. It can also be at the first application position 101. Alternatively, it may be the second pasting adjustment position ⁇ 2 located between these two positions. It is assumed here that the step (m) is performed at the second sticking adjustment position ⁇ 2. Then, in step (m), the liquid crystal panel 5 readjusted at the second reference position ⁇ 2 is transported to the second attachment adjustment position ⁇ 2 as the operation initially shown in the flow chart (xv).
  • the liquid crystal panel 5 makes the center line 500 of the liquid crystal panel 5 parallel to the center line 700 of the first optical film sheet 10 based on the calculated second related position information 57 at the second bonding adjustment position ⁇ 2.
  • the first optical film sheet 10 is attached and adjusted. Further, the liquid crystal panel 5 thus attached and adjusted is transported to the first attachment position 101.
  • the liquid crystal panel 5 attached and adjusted is peeled off from the first carrier film 2
  • the first optical film sheet 10 is not covered by the terminal portion 50 formed on one side of the long side of the liquid crystal panel 5 and on the other side except one side of the long side of the liquid crystal panel 5 It is pasted together so that it may come out from the amount of Hami y Hami ( Figure 9).
  • the step (m) is, as the operation shown in the flow chart (xv), sticking adjustment of the liquid crystal panel 5 to the first optical film sheet 10 based on the second related position information 57.
  • the second reference position is not caused to cause the liquid crystal panel 5 to pass through the second pasting adjustment position ⁇ 2. It goes without saying that the liquid crystal panel 5 can be attached simultaneously with the adjustment of the liquid crystal panel 5 by the second related position information 57 at ⁇ 2 or at the first attachment position 101.
  • the liquid crystal panel 5 used in the present invention has a first optical film sheet on one surface 51 on the viewing side of the liquid crystal panel 5 and the other surface 52 on the non-viewing side, as is apparent from the schematic view of FIG.
  • the polarizing films constituting the 10 and the second optical film sheet 20 are pasted together via an optical compensation film or the like so that the absorption axes have a cross nicol relationship.
  • the laminate 6 of the optical display device manufactured according to the present invention is a liquid crystal configured in a state where the second optical film sheet 20 is bonded in advance so as not to leave the second optical film sheet 20 from the other surface 52 of the liquid crystal panel 5
  • the terminal portion 50 provided on the one surface side 521 of the protrusion 520 on the TFT side Hami is further extracted by the adjustment amount y1 of the first optical film sheet 10 adjusted so as to be exposed from the other side except one side of the long side of 5 and, thereby, the Hami extension y shown in FIG. It is pasted together in the state where Therefore, the outside of the area of the first optical film sheet 10 bonded to the one surface 51 of the liquid crystal panel so as to come out from the other side excluding one side is generally a transparent area.
  • the first optical film sheet 10 is bonded so as not to be covered by the terminal portion 50 formed on the liquid crystal panel 5, so that the optical film There is no need to cut and remove the excess portion of the first optical film sheet that has been covered by the terminal portion 50 as compared to the conventional laminate in which the sheet is bonded to cover the terminal portion 50 of the liquid crystal panel 5. There is no concern that the terminal 50 may be damaged by
  • the present invention provides a method of manufacturing a laminate 6 of an optical display device in one aspect or another aspect.
  • the width or length of the other surface 52 of the liquid crystal panel 5 in the pretreatment step on the upstream side of the apparatus 1 for carrying out the method Roll of the second optical film laminate of the continuous web in a state where the second optical film sheet 20 having a width or length corresponding to the thickness is continuously supported on the second carrier film 3 via the adhesive layer R3 is fed out.
  • the second optical film sheet 20 is peeled off from the second carrier film 3 of the continuous web together with the pressure-sensitive adhesive layer and sent to the second application position 201.
  • the liquid crystal panel 5 suctioned and fixed by the second alignment means 81 is conveyed to the second bonding position 201, and the second optical film sheet 20 is pressed from the other surface 52 to the other surface 52 of the liquid crystal panel 5. Paste in advance so as not to come out.
  • the liquid crystal panel 5 in which the second optical film sheet 20 is previously bonded to the other surface 52 of the liquid crystal panel 5 is attracted by the second alignment means 81 as shown in FIG. In the fixed state, it is conveyed to the second sticking position 201, where the suction fixing of the second alignment means 81 is released. Thereafter, the liquid crystal panel 5 is transported on the transport path 30 to the reverse rotation portion 300 with the long side as the tip surface. Next, the liquid crystal panel 5 is turned by 90 degrees by turning means (not shown) in the reverse turning process, and is conveyed by using the short side of the liquid crystal panel 5 as the tip end face in a state of being reversed by the turning means (not shown). It is conveyed to the 1st bonding apparatus 100 along the path
  • the width larger than the width of the one surface 51 of the liquid crystal panel 5 in which the second optical film sheet 20 is already bonded to the other surface 52 of the liquid crystal panel in the pretreatment step A roll R1 of the first optical film laminate of the continuous web is unwound.
  • the first optical film laminate is configured such that the first optical film sheet 10 is continuously supported by the adhesive layer on the first carrier film 2 of the continuous web. At that time, the first optical film sheet 10 to be peeled together with the adhesive layer from the first carrier film 2 of the continuous web taken up by the roll R2 through the peeling means 60 is sent to the first sticking position 101 .
  • the first optical film sheet 10 does not cover the terminal portion 50 formed on one side of the long side of the liquid crystal panel 5 on the one surface 51 of the liquid crystal panel 5 conveyed to the first bonding position 101.
  • the liquid crystal panel 5 is pasted so that the other side except for one side of the long side of the liquid crystal panel 5 is exposed.
  • both the first optical film sheet 10 and the second optical film sheet 20 bonded to both sides of the liquid crystal panel are formed of a polarizing film, the absorption axes are in a cross nicol relationship with each other.
  • the first optical film laminate may be the same as or smaller than the width of one surface of the liquid crystal panel, and the width of the first optical film laminate is the width of one surface 51 of the liquid crystal panel 5
  • the adjustment amount y1 shown in FIG. 9 is the same as the protrusion amount y, and adjustment is performed when the width of the first optical film laminate is smaller than the width of the one surface 51 of the liquid crystal panel 5
  • the amount y1 is larger than the protrusion amount y.
  • y The first optical film adjusted so as not to cover the terminal portion formed on one side of the long side of the liquid crystal panel

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Mathematical Physics (AREA)
  • Engineering & Computer Science (AREA)
  • Manufacturing & Machinery (AREA)
  • Liquid Crystal (AREA)
  • Polarising Elements (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)

Abstract

L'objectif de la présente invention est d'améliorer la productivité d'un procédé de production d'un stratifié d'un dispositif d'affichage optique impliquant le collage d'une première feuille de film optique sur un côté d'un panneau à cristaux liquides sur lequel une seconde feuille de film optique a été précédemment collée de manière à ne pas faire saillie de l'autre côté du panneau à cristaux liquides (5). Le procédé comprend : une étape de réglage de position de panneau à cristaux liquides dans laquelle la ligne centrale (500) du panneau à cristaux liquides et la ligne centrale (600) d'un trajet de transport sont réglées de manière à coïncider ou à être parallèles, un point de référence sur le panneau à cristaux liquides est lu par un moyen de détection de panneau, et la position du panneau à cristaux liquides est réajustée sur la base d'informations de référence prédéfinies ; une première étape de détection de position de feuille de film optique dans laquelle la position de la première feuille de film optique est détectée, la quantité de décalage par rapport au panneau à cristaux liquides est calculée, et des informations de position associées sont calculées en ajoutant à la quantité de décalage mentionnée ci-dessus la quantité de réglage dont la première feuille de film optique fait saillie par rapport aux bords autres que l'un des bords longs du panneau à cristaux liquides ; et une étape de collage dans laquelle, sur la base des informations de position associées, la première feuille de film optique est collée de manière à ne pas recouvrir la partie d'extrémité du panneau à cristaux liquides réajusté et de façon à faire saillie par rapport aux bords autres que ledit bord long.
PCT/JP2018/004175 2017-09-28 2018-02-07 Procédé de production de stratifié de dispositif d'affichage optique WO2019064620A1 (fr)

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CN201880053548.9A CN111033367B (zh) 2017-09-28 2018-02-07 制造光学显示装置的层叠体的方法

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Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011155036A1 (fr) * 2010-06-10 2011-12-15 日東電工株式会社 Procédé pour l'ajustement de position d'une pellicule et d'un panneau rectangulaire dans un dispositif de production d'écran d'affichage
JP2015006699A (ja) * 2013-06-24 2015-01-15 住友化学株式会社 光学表示デバイスの生産システム
US20150190995A1 (en) * 2014-01-08 2015-07-09 Lg Chem Ltd. System for laminating optical film and method for manufacturing display unit using the same

Family Cites Families (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP4371709B2 (ja) * 2003-06-05 2009-11-25 富士フイルム株式会社 光学フィルム貼付装置及び方法
WO2009128115A1 (fr) 2008-04-15 2009-10-22 日東電工株式会社 Rouleau stratifié de film optique, et son procédé et dispositif de fabrication
JP2011098445A (ja) * 2009-11-04 2011-05-19 Tomoegawa Paper Co Ltd 光学積層体およびその製造方法、並びにそれを用いた偏光板および表示装置
JP4981944B2 (ja) * 2010-03-26 2012-07-25 三星ダイヤモンド工業株式会社 液晶表示装置用セルの製造方法
WO2013081105A1 (fr) 2011-11-30 2013-06-06 住友化学株式会社 Système de fabrication de dispositif d'affichage optique et procédé de fabrication associé
JP2014167548A (ja) * 2013-02-28 2014-09-11 Nitto Denko Corp 画像表示装置の製造方法および該製造方法により得られる画像表示装置
JP6048297B2 (ja) * 2013-04-24 2016-12-21 住友化学株式会社 光学積層体及びそれを用いた表示装置
JP6127707B2 (ja) 2013-05-16 2017-05-17 住友化学株式会社 光学表示デバイスの生産システム及び生産方法
JP6182805B2 (ja) 2013-05-17 2017-08-23 住友化学株式会社 光学表示デバイスの生産システム
JP6203234B2 (ja) * 2015-12-04 2017-09-27 日東電工株式会社 光学的表示装置を連続的に製造する装置及び方法

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO2011155036A1 (fr) * 2010-06-10 2011-12-15 日東電工株式会社 Procédé pour l'ajustement de position d'une pellicule et d'un panneau rectangulaire dans un dispositif de production d'écran d'affichage
JP2015006699A (ja) * 2013-06-24 2015-01-15 住友化学株式会社 光学表示デバイスの生産システム
US20150190995A1 (en) * 2014-01-08 2015-07-09 Lg Chem Ltd. System for laminating optical film and method for manufacturing display unit using the same

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CN111033367A (zh) 2020-04-17
JP6619784B2 (ja) 2019-12-11
JP2019061210A (ja) 2019-04-18
TW201915570A (zh) 2019-04-16
KR20200012021A (ko) 2020-02-04
TWI698683B (zh) 2020-07-11
KR102160932B1 (ko) 2020-09-29
CN111033367B (zh) 2021-06-15

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