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CN103999142A - Method for continuously producing optical display panel and system for continuously producing optical display panel - Google Patents

Method for continuously producing optical display panel and system for continuously producing optical display panel Download PDF

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Publication number
CN103999142A
CN103999142A CN201380004348.1A CN201380004348A CN103999142A CN 103999142 A CN103999142 A CN 103999142A CN 201380004348 A CN201380004348 A CN 201380004348A CN 103999142 A CN103999142 A CN 103999142A
Authority
CN
China
Prior art keywords
carrier film
stickup
blooming
paste
optical
Prior art date
Legal status (The legal status 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 status listed.)
Granted
Application number
CN201380004348.1A
Other languages
Chinese (zh)
Other versions
CN103999142B (en
Inventor
秦和也
梅本清司
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Nitto Denko Corp
Original Assignee
Nitto Denko Corp
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Filing date
Publication date
Application filed by Nitto Denko Corp filed Critical Nitto Denko Corp
Publication of CN103999142A publication Critical patent/CN103999142A/en
Application granted granted Critical
Publication of CN103999142B publication Critical patent/CN103999142B/en
Active legal-status Critical Current
Anticipated expiration legal-status Critical

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Classifications

    • G—PHYSICS
    • G09—EDUCATION; CRYPTOGRAPHY; DISPLAY; ADVERTISING; SEALS
    • G09F—DISPLAYING; ADVERTISING; SIGNS; LABELS OR NAME-PLATES; SEALS
    • G09F9/00—Indicating arrangements for variable information in which the information is built-up on a support by selection or combination of individual elements
    • 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
    • B29C63/0047—Preventing air-inclusions
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/78—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus
    • B29C65/7858—Means for handling the parts to be joined, e.g. for making containers or hollow articles, e.g. means for handling sheets, plates, web-like materials, tubular articles, hollow articles or elements to be joined therewith; Means for discharging the joined articles from the joining apparatus characterised by the feeding movement of the parts to be joined
    • B29C65/7861—In-line machines, i.e. feeding, joining and discharging are in one production line
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/05—Particular design of joint configurations
    • B29C66/10—Particular design of joint configurations particular design of the joint cross-sections
    • B29C66/11—Joint cross-sections comprising a single joint-segment, i.e. one of the parts to be joined comprising a single joint-segment in the joint cross-section
    • B29C66/112—Single lapped joints
    • B29C66/1122—Single lap to lap joints, i.e. overlap joints
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/01—General aspects dealing with the joint area or with the area to be joined
    • B29C66/342—Preventing air-inclusions
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/40—General aspects of joining substantially flat articles, e.g. plates, sheets or web-like materials; Making flat seams in tubular or hollow articles; Joining single elements to substantially flat surfaces
    • B29C66/41—Joining substantially flat articles ; Making flat seams in tubular or hollow articles
    • B29C66/45—Joining of substantially the whole surface of the articles
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/72—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined
    • B29C66/723—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the structure of the material of the parts to be joined being multi-layered
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/832—Reciprocating joining or pressing tools
    • B29C66/8322—Joining or pressing tools reciprocating along one axis
    • B29C66/83221—Joining or pressing tools reciprocating along one axis cooperating reciprocating tools, each tool reciprocating along one axis
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
    • B29C66/83411—Roller, cylinder or drum types
    • B29C66/83413—Roller, cylinder or drum types cooperating rollers, cylinders or drums
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/83—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools
    • B29C66/834—General aspects of machine operations or constructions and parts thereof characterised by the movement of the joining or pressing tools moving with the parts to be joined
    • B29C66/8341—Roller, cylinder or drum types; Band or belt types; Ball types
    • B29C66/83411—Roller, cylinder or drum types
    • B29C66/83415—Roller, cylinder or drum types the contact angle between said rollers, cylinders or drums and said parts to be joined being a non-zero angle
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/93—Measuring or controlling the joining process by measuring or controlling the speed
    • B29C66/934—Measuring or controlling the joining process by measuring or controlling the speed by controlling or regulating the speed
    • B29C66/93441—Measuring or controlling the joining process by measuring or controlling the speed by controlling or regulating the speed the speed being non-constant over time
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/90—Measuring or controlling the joining process
    • B29C66/93—Measuring or controlling the joining process by measuring or controlling the speed
    • B29C66/939—Measuring or controlling the joining process by measuring or controlling the speed characterised by specific speed values or ranges
    • B29C66/9392—Measuring or controlling the joining process by measuring or controlling the speed characterised by specific speed values or ranges in explicit relation to another variable, e.g. speed diagrams
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B37/00—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding
    • B32B37/0007—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding involving treatment or provisions in order to avoid deformation or air inclusion, e.g. to improve surface quality
    • B32B37/003—Methods or apparatus for laminating, e.g. by curing or by ultrasonic bonding involving treatment or provisions in order to avoid deformation or air inclusion, e.g. to improve surface quality to avoid air inclusion
    • 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
    • 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
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
    • B29C65/481—Non-reactive adhesives, e.g. physically hardening adhesives
    • B29C65/4825—Pressure sensitive adhesives
    • 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
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/48—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding
    • B29C65/4805—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor using adhesives, i.e. using supplementary joining material; solvent bonding characterised by the type of adhesives
    • B29C65/483—Reactive adhesives, e.g. chemically curing adhesives
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/70—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material
    • B29C66/71—General aspects of processes or apparatus for joining preformed parts characterised by the composition, physical properties or the structure of the material of the parts to be joined; Joining with non-plastics material characterised by the composition of the plastics material of the parts to be joined
    • 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
    • B29C66/00—General aspects of processes or apparatus for joining preformed parts
    • B29C66/80—General aspects of machine operations or constructions and parts thereof
    • B29C66/82—Pressure application arrangements, e.g. transmission or actuating mechanisms for joining tools or clamps
    • B29C66/824—Actuating mechanisms
    • B29C66/8246—Servomechanisms, e.g. servomotors
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B2457/00—Electrical equipment
    • B32B2457/20—Displays, e.g. liquid crystal displays, plasma displays
    • B32B2457/202—LCD, i.e. liquid crystal displays

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Manufacturing & Machinery (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Liquid Crystal (AREA)
  • Mathematical Physics (AREA)
  • Quality & Reliability (AREA)
  • Polarising Elements (AREA)
  • Theoretical Computer Science (AREA)
  • Lining Or Joining Of Plastics Or The Like (AREA)
  • Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

Provided are a method that is for continuously producing optical display panels and that can reduce air bubble defects that easily arise between an optical film and an optical cell during the initial period of pasting together, and a system for continuously producing the optical display panels. The method for continuously producing optical display panels includes: a carrier film conveyance step for conveying a carrier film to which an optical film is laminated; a peeling step for peeling the optical film from the carrier film; a front-end pasting step for pasting together the front end of the optical film to the front end of an optical cell; and a pasting step for forming an optical display panel by pasting together the optical film to the optical cell with an adhesive therebetween while conveying the optical cell in a manner so that the start of pasting to the optical cell of the portion following the front end of the optical film of which the front end has been pasted is executed before the start of conveyance of the carrier film.

Description

The continuous manufacturing system of the method for continuous production of optical display panel and optical display panel
Technical field
The method for continuous production of optical display panel and the continuous manufacturing system of optical display panel that the present invention relates to the blooming of peeling off from carrier film to be pasted on optical unit by bonding agent and form optical display panel.
Background technology
Be known to the continuous manufacturing system of following optical display panel: make the winding roller of carrier film and the rotational speed of Sticking roller synchronously utilize carrier film that mechanism for stripping makes to be formed with blooming by bonding agent with this carrier film for turning back medially, thereby blooming is peeled off from this carrier film together with bonding agent, and the blooming being stripped from is pasted on to optical unit (for example,, with reference to patent documentation 1) continuously by bonding agent.
Formerly technical literature
Patent documentation
Patent documentation 1: No. 2004-338408, TOHKEMY
Summary of the invention
The problem that invention will solve
But in above-mentioned continuous manufacturing system, the instability etc. of particularly controlling due to device at the stickup initial stage and may make blooming lax produces bubble between optical unit and blooming.
The present invention makes in view of above-mentioned problem, provides a kind of and can reduce the bad method for continuous production of optical display panel and the continuous manufacturing system of optical display panel of bubble that the stickup initial stage easily produces between optical unit and blooming.
For solving the means of problem
In order to solve above-mentioned problem, carry out research with keen determination, result has completed following the present invention.; find; by after in advance the leading section of blooming being pasted on to the leading section of optical unit; make to paste the zero hour (the rotation zero hour of for example Sticking roller) for example, than the conveying zero hour of carrier film (the rotation zero hour of winding roller) more early; can under the state that just blooming is applied reliably tension force from the stickup initial stage, this blooming be pasted on to optical unit; consequently, easily the bubble of generation is bad between optical unit and blooming to reduce the stickup initial stage.
The method for continuous production of optical display panel of the present invention comprises:
Carrier film is carried operation, carries the carrier film that is laminated with the blooming that comprises this bonding agent by bonding agent in this operation;
Stripping process, in this operation, make by described carrier film carry described carrier film that operation transports with this carrier film for turning back described blooming peeled off from this carrier film medially;
Leading section is pasted operation, the leading section of the described blooming of peeling off by described stripping process is pasted on to the leading section of optical unit in this operation;
Paste operation, in this operation, before starting with the conveying in the described carrier film of carrying operation to carry out based on described carrier film, start to carry out the mode of the later part of the described leading section of the described optical thin film that described leading section has been stuck to the stickup of described optical unit, feeding optical unit is pasted on the described blooming of peeling off from described carrier film by described stripping process this optical unit and forms optical display panel by described bonding agent on one side on one side.
In this structure, after in advance the leading section of blooming being pasted on to the leading section of optical unit, before starting, the conveying of carrier film starts to carry out the stickup of blooming to optical unit, therefore, can start not make blooming lax and give blooming reliably the state of tension force this blooming is pasted on to optical unit from the stickup initial stage, result is that easily the bubble of generation is bad between blooming and optical unit to reduce the stickup initial stage.
As an embodiment of foregoing invention, be preferably, in described stickup operation, in specified time limit the moment midway during the stickup completing to stickup the zero hour from the stickup that described blooming is started paste to described optical unit completes the moment, transporting velocity and the described blooming of carrier film that has made to be stripped from this blooming is consistent or be greater than described stickup speed to the stickup speed of this optical unit stickup.
For example, be greater than the relation of transporting velocity of carrier film in the whole zone maintenance stickup speed during gluing treatment, in the whole region of stickup, the tension force that blooming is applied increases always, may in optical display panel, produce warpage (bending) state.Therefore, by from pasting in the specified time limit the moment midway during starting to complete to stickup, the transporting velocity that has made to be stripped from blooming (afterwards) carrier film is synchronizeed with stickup speed or is greater than stickup speed, can suppress the increase of the tension force that blooming is applied, thereby suppress the warpage generation of optical display panel.
As an embodiment of foregoing invention, be preferably, from described midway time be carved into and peeled off the moment during, make described stickup speed consistent with the transporting velocity of described carrier film.
As an embodiment of foregoing invention, in described stickup operation, complete the moment to described stickup the zero hour from described stickup, described stickup speed is greater than zero, and before described stickup completes, the conveying degree of described carrier film is zero.
In this structure, by making stickup speed be greater than zero to having pasted the moment zero hour pasting, can stably paste.In addition, be zero by making the transporting velocity of carrier film before completing in stickup, can prevent being next involved in of the blooming pasted with optical unit.
In addition, the continuous manufacturing system of the optical display panel of another program has:
Carrier film delivery section, it carries the carrier film that is laminated with the blooming that comprises this bonding agent by bonding agent;
Stripping portion, its make the carrier film that transports by described carrier film delivery section with this carrier film for turning back described blooming peeled off from this carrier film medially;
Paste section, its leading section by the described blooming of peeling off by described stripping portion is pasted on the leading section of optical unit, and on one side feeding optical unit is pasted on the described blooming of peeling off from described carrier film this optical unit by described bonding agent on one side and forms optical display panel;
Drive control part, it drives and controls and described carrier film delivery section driven to control described paste section in the following manner: before the conveying of the described carrier film of carrying out based on described carrier film delivery section starts, start the stickup of the later part of the described leading section of execution described blooming that carry out based on described paste section, that described leading section has been stuck to described optical unit.
As an embodiment of foregoing invention, be preferably the tension adjustment portion of the tension force of described carrier film delivery section in the time thering is by upstream side place the conveying of adjusting carrier film than described stripping portion.Utilize this tension adjustment portion, can give reliably tension force to blooming at the stickup initial stage, consequently, can further reduce the bubble at stickup initial stage bad.As tension adjustment portion, exemplify dance roller.
As an embodiment of foregoing invention, be preferably, described drive control part drives control to described paste section and described carrier film delivery section in the following manner: in the specified time limit the moment midway during the stickup completing to stickup the zero hour from the stickup that described blooming is started paste to described optical unit completes the moment, make based on described carrier film delivery section, be stripped from this blooming described carrier film transporting velocity with based on described paste section, stickup speed that described blooming is pasted to described optical unit is consistent or be greater than described stickup speed.
As an embodiment of foregoing invention, be preferably, described drive control part makes described stickup speed be greater than zero mode this paste section is driven to control to complete the moment from described stickup zero hour to described stickup, and taking the transporting velocity that makes described carrier film before completing in described stickup as zero mode, described carrier film delivery section is driven to control.
As an embodiment of foregoing invention, be preferably, described drive control part is to make the mode of stickup speed=0, carrier film transporting velocity=0 drive and control and carrier film delivery section is driven to control paste section in front of pasting the zero hour at next.
As an embodiment of foregoing invention, described paste section has described blooming is pressed on to the Sticking roller of described optical unit face and the backing roll with this Sticking roller arranged opposite, between this Sticking roller and this backing roll, clamp and carry this blooming and this optical unit this blooming to be pasted on to this optical unit face on one side on one side
Described drive control part drives control to described Sticking roller and/or described backing roll.
As an embodiment of foregoing invention, carrier film delivery section has the conveying upstream side of the stripping portion of being disposed at and the upstream side form supply unit (feed roller) of delivery vehicles film and/or be disposed at the conveying downstream of stripping portion and the downstream side form supply unit (feed roller) of delivery vehicles film, and described drive control part drives control for delivery vehicles film to upstream side form supply unit and/or downstream side form supply unit.
As an embodiment of foregoing invention, carrier film delivery section has being stripped from the reeling end that blooming carrier film is afterwards batched, and described drive control part drives control for delivery vehicles film to reeling end.In addition, carrier film delivery section also can have in upstream side form supply unit, downstream side form supply unit and reeling end more than one.
Brief description of the drawings
Fig. 1 is the schematic diagram that represents an example of the continuous manufacturing system of optical display panel.
Fig. 2 A is the figure of the action for drive control part is described.
Fig. 2 B is the figure of the action for drive control part is described.
Fig. 2 C is the figure of the action for drive control part is described.
Fig. 2 D is the figure of the action for drive control part is described.
Fig. 2 E is the figure of the action for drive control part is described.
Fig. 3 is the figure that represents the stickup speed of embodiment and the length velocity relation of coiling speed.
Fig. 4 A is the figure that represents the velocity conditions of embodiment 1.
Fig. 4 B is the figure that represents the velocity conditions of embodiment 2.
Fig. 4 C is the figure that represents the velocity conditions of embodiment 3.
Fig. 4 D is the figure that represents the velocity conditions of embodiment 4.
Fig. 4 E is the figure that represents the velocity conditions of embodiment 5.
Fig. 5 A is the figure that represents the velocity conditions of comparative example 1.
Fig. 5 B is the figure that represents the velocity conditions of comparative example 2.
Embodiment
In the present embodiment, the form that blooming is formed at carrier film is not particularly limited.For example, can be by the morphosis that is wound into web-like.As volume, for example can enumerate (1) will have carrier film and be wound into the form of web-like by the laminated optical film that bonding agent is formed at the banded blooming in this carrier film.In this case, the continuous manufacturing system of optical display panel has cutting portion for the blooming from banded forms blooming, and this cutting portion retains the mode of carrier film, with predetermined distance, this banded blooming and bonding agent cut off to (laminated optical film is carried out to hemisect) not cut off.
In addition, as volume, for example can enumerate (2) will have carrier film and be wound into the form (the so-called volume with cut channel laminated optical film) of web-like by the laminated optical film that bonding agent is formed at the blooming in this carrier film.It should be noted that, as blooming, can enumerate polarizing coating, luminance raising film, phase retardation film, by two bloomings that form above of above-mentioned film-stack etc.
For example, the first volume 1 shown in Fig. 1 forms by the first cascade blooming 11 that has the first carrier film 12 and be laminated in the first polarizing coating (example of blooming) 13 in the first carrier film 12 is wound into web-like.The first polarizing coating 13 has film main body 13a and adhesive phase 13b.
Polarizing coating for example has polaroid (thickness 1.5～80 about μ m) and by bonding agent or be not formed at the polaroid protective film (thickness is generally 1～500 μ m left and right) on the one or both sides of polaroid by bonding agent.As other the film that forms first cascade blooming 11, for example can enumerate λ/4 plate, the poor film of λ/2 plate equiphase (thickness be generally 10～200 μ m), compensation film for angular field of view, luminance raising film, surface protection film etc.The thickness of laminated optical film is for example enumerated the scope of 10 μ m～500 μ m.The adhesive phase being located between polarizing coating and carrier film is not particularly limited, and for example can enumerate acrylic adhesive, silicone-based adhesive or carbamate is bonding agent etc.The for example preferred scope of 10 μ m～50 μ m of the layer thickness of bonding agent.As the peeling force between adhesive phase and carrier film, for example, exemplify 0.15 (N/50mm width sample), but be not limited to this.Peeling force is measured according to JIS Z0237.
Carrier film for example can be used the known film in the past such as plastic foil (such as PET series film, polyolefin mesentery etc.).In addition, as required, can use suitable removers such as utilizing silicone-based, chain alkyl system, fluorine system or molybdenum sulfide to carry out coating and process the suitable film in the past such as the film that forms.
Optical display panel is pasted at least blooming by bonding agent and is formed on the one or both sides of optical unit, is assembled with as required driving circuit.Optical unit for example can be enumerated liquid crystal cells, organic EL unit.Liquid crystal cells can use the such as unit of any type such as vertical orientated (VA) type, in-plane switching (IPS) type.Organic EL unit can use the unit of top light emitting formula such as, bottom-emission formula, two any types such as illuminated.Liquid crystal cells P shown in Fig. 1 is the structure that is sealed with liquid crystal layer between a pair of substrate (first substrate Pa, second substrate Pb) in arranged opposite.
< embodiment 1>
Below, specifically describe the continuous manufacturing system of the optical display panel that present embodiment relates to reference to Fig. 1～3, but the present invention is not limited to the scheme of present embodiment.As optical unit, describe as an example of liquid crystal cells example, as blooming, describe as an example of polarizing coating example.Below, be called display panels by paste the liquid crystal cells that polarizing coating forms on two sides.Fig. 1 is the schematic diagram of the continuous manufacturing system of optical display panel, and Fig. 2 is the figure of the action for drive control part is described.Fig. 3 is the figure that represents the length velocity relation of stickup speed and coiling speed.
The continuous manufacturing system of the optical display panel that present embodiment relates to has the first carrier film delivery section 101, the first stripping portion 40, the first liquid crystal cells delivery section 102, the first paste section 103 (the first Sticking roller 50a, the first driven roller 50b), the first drive control part 110, the second liquid crystal cells delivery section 104, Second support film delivery section, the second stripping portion, the second paste section (the second Sticking roller, the second driven roller), the second drive control part and optical display panel delivery section.In the present embodiment, paste polarizing coating from the upside of liquid crystal cells, then make to be pasted with liquid crystal cells upset (the table back of the body upset of polarizing coating, half-twist as required), paste polarizing coating from the upside of this liquid crystal cells, but also can paste polarizing coating from the downside of liquid crystal cells, make liquid crystal cells upset, paste polarizing coating from the downside of liquid crystal cells again, also can paste polarizing coating from the upside of liquid crystal cells, do not make liquid crystal cells upset and paste polarizing coating from the downside of liquid crystal cells, also can paste polarizing coating from the downside of liquid crystal cells, do not make liquid crystal cells upset and paste polarizing coating from the upside of liquid crystal cells.
The first liquid crystal cells delivery section 102 is for supplying with and carry liquid crystal cells P to the first paste section 103.In the present embodiment, the first liquid crystal cells delivery section 102 has conveying roller portion 80 and adsorption plate etc.By conveying roller 80 being rotated or adsorption plate being moved, and liquid crystal cells P is carried to manufacturing line downstream.In the gluing treatment of the first polarizing coating 131, the first liquid crystal cells delivery section 102 is controlled by the first drive control part 110 described later, and liquid crystal cells P is carried to the paste position of the first paste section 103.
The first carrier film delivery section 101 is for delivery of the first carrier film 12 that is laminated with the first banded polarizing coating that comprises this bonding agent by bonding agent.In the present embodiment, the first carrier film delivery section 101 is emitted first cascade blooming 11 and is had the first cutting portion 20 from the first volume 1, this first cutting portion 20 is for the first polarizing coating of band shape is cut off with predetermined distance, thereby forms the first polarizing coating 131 in the first carrier film 12.This polarizing coating 131 is peeled off and is supplied with to the first paste section 103 from the first carrier film by the first stripping portion 40 described later.Therefore, the first carrier film delivery section 101 has the first cutting portion 20, the first dance roller 30 (example of tension adjustment portion), the first reeling end 60.It should be noted that, the first carrier film delivery section 101 also can have by conveying upstream side or by conveying downstream place the feed roller (not shown) of carrying the first carrier film 12 (first cascade blooming 11) than the first stripping portion 40.
The first cutting portion 20 is utilizing adsorption section 21, from the state of the fixing first cascade blooming 11 of the first carrier film 12 sides, the first polarizing coating of band shape is cut to the size corresponding with liquid crystal cells P, thereby forms the first polarizing coating 131 in the first carrier film 12.As the first cutting portion 20, for example, can enumerate cutting knife, laser aid etc.
The first dance roller 30 has the function that keeps the tension force of the first carrier film 12 in each process such as course of conveying, taping process.Utilize this first dance roller 30, can start to give tension force to the first polarizing coating 131 more reliably from the stickup initial stage.The first carrier film delivery section 101 is carried the first carrier film 12 by the first dance roller 30.
In the time that the first polarizing coating 131 is pasted to liquid crystal cells P, the first stripping portion 40 utilize its front end make the first carrier film 12 with the first carrier film 12 for turning back medially, thereby the first polarizing coating 131 (comprising bonding agent) is peeled off from the first carrier film 12.In the present embodiment, as the first stripping portion 40, use sharp edge portion at front end, but be not limited to this.
The first reeling end 60 has winding roller 60a, and the first carrier film 12 that has been stripped from the first polarizing coating 131 is batched on winding roller 60a.In the present embodiment, during the stickup of the first polarizing coating 131 (process), the coiling speed V1 (t) of the first carrier film 12 based on the first reeling end 60 is suitable with the transporting velocity of carrier film that has been stripped from the first polarizing coating 131.The first reeling end 60 drives control (drive start, stop, rotational speed etc.) by the first drive control part 110 described later.The first drive control part 110 is for example controlled the motor M1 of the winding roller 60a rotation that drives the first reeling end 60.
First the first paste section 103 is pasted on the leading section of the first polarizing coating 131 of being peeled off by the first stripping portion 40 leading section of liquid crystal cells P.Then, liquid crystal cells P, before starting to carry the first carrier film 12, is carried while the later part of this leading section of the first polarizing coating 131 that leading section is stuck is pasted on liquid crystal cells P and forms optical display panel in the first paste section 103.In the present embodiment, the first paste section 103 is made up of the first Sticking roller 50a, the first driven roller 50b.During the stickup of the first polarizing coating 131 (process), the rotational speed of the first driven roller (backing roll) 50b is equivalent to paste speed V2 (t), and the first driven roller 50b drives control (drive start, stop, rotational speed etc.) by drive control part 110 described later.It should be noted that, the first Sticking roller 50a is and correspondingly driven mechanism of the driving of the first driven roller 50b, but is not restricted to this, can be also to drive and driven contrary mechanism, can two sides be also driving mechanisms.The first drive control part 110 is for example controlled the motor M2 that drives the first driven roller 50b rotation.
Batch (or utilizing not shown above-mentioned feed roller) by first carrier film 12 of carrying out based on the first reeling end 60 sends the first polarizing coating 131 into paste position Q.On the other hand, utilize the rotation of the first driven roller 50b and the first Sticking roller 50a to carry liquid crystal cells P, and start to paste.
Now, on the first polarizing coating 131 produce based on the first reeling end 60 (or above-mentioned feed roller) send into effect and owing to being clamped by the first driven roller 50b and the first Sticking roller 50a the effect of drawing in being drawn into.At this, in the time that the instability etc. of controlling due to device is sent into effect and become large, the first polarizing coating 131 may occur lax, or the tension force that the first polarizing coating 131 is applied is unstable.Therefore, in the present embodiment, solve above-mentioned problem by controlling as described below the first reeling end 60 (coiling speed V1) and the first paste section 50 (pasting speed V2).
The first drive control part 110 drives and controls and the first carrier film delivery section 101 is driven to control paste section 50 in the following manner: before the conveying of first carrier film 12 of carrying out based on the first carrier film delivery section 101 starts, start to carry out the stickup of the first that carry out based on the first paste section 50, leading section is pasted on liquid crystal cells P polarizing coating 131 with respect to liquid crystal cells P.In the present embodiment, the first drive control part 110 is controlled respectively the first above-mentioned reeling end 60 and the first driven roller 50b, thereby the stickup speed V2 (transporting velocity of liquid crystal cells, the speed of drawing in of polarizing coating) that pastes the first polarizing coating 131 to coiling speed V1 during the gluing treatment of the first polarizing coating 131, the first carrier film 12 (transporting velocity of carrier film, the speed of sending into of polarizing coating), to liquid crystal cells P drives control.Fig. 3 represents coiling speed V1 during gluing treatment whole, pastes the length velocity relation of speed V2.
In Fig. 3, during peeling off beginning, the front end of the first polarizing coating 131 is started to peel off from the first carrier film 12, the first polarizing coating 131 is carried to (with reference to Fig. 2 A, V1 > 0) to paste position.Now, utilize winding roller 60a or the first polarizing coating 131 carried to paste position by conveying upstream side or by the feed roller of carrying downstream than the first stripping portion 40.In the time that arriving paste position Q, the first polarizing coating 131 temporarily stops sending into (winding roller 60a stops (with reference to Fig. 2 B, V1=0)).
Then, gluing treatment starts.First, the first Sticking roller 50a presses the leading section of the first polarizing coating 131 from top and is pasted on the leading section of liquid crystal cells P.Then, at the stickup initial stage, pasting the T1 zero hour, before making winding roller 60a rotation, make the first driven roller 50b and the first Sticking roller 50a rotation, between the first driven roller 50b and the first Sticking roller 50a, clamp and carry the first polarizing coating 131 and liquid crystal cells P, the first polarizing coating 131 is pasted on to liquid crystal cells P face (with reference to Fig. 2 C).
Then, batching the T2 zero hour, make winding roller 60a rotation and carry the first carrier film 12, the first polarizing coating 131 is sent to (V1 > 0), then, pasting mid-term, synchronously (consistent) (V1=V2) to make coiling speed and stickup speed.
Then, pasting final period, the first polarizing coating 131 of pasting in this moment is peeled off completely from the first carrier film 12, then, produce moment T4 for winding roller 60a is stopped at velocity contrast coiling speed V1 is slowed down, before stickup completes, make the rotation of winding roller 60a stop (V1=0, with reference to Fig. 2 D).Then, make the rotation of the first driven roller 50b slow down (paste speed V2 Minus speed) and complete to liquid crystal cells P and paste the first polarizing coating 131 (with reference to Fig. 2 E).After completing, stickup the rotation of the first driven roller 50b is stopped (V2=0).Then, prepare to carry out to ensuing stickup.
In addition, as another embodiment, the first drive control part 110 also can from paste during starting to complete the moment to stickup midway time be carved into by the first polarizing coating 131 from the first carrier film 12 peel off end peeled off the moment make stickup speed and coiling speed synchronous.In addition, the first drive control part 110 also can drive control so that at least become the mode of the length velocity relation of V2 > V1 in front of stickup completes.
In addition, the first drive control part 110 to be to complete moment T5 to stickup and paste speed V2 and be greater than zero mode the first driven roller 50b is driven to control from pasting zero hour T1, and to make coiling speed V1 the winding roller 60a of the first reeling end 60 be driven to control as zero mode before completing in stickup.The first drive control part 110 drives control in the mode of V2 (t)=0, V1 (t)=0 to the winding roller 60a of the first driven roller 50b and the first reeling end 60 in the ensuing stickup front zero hour.
In addition, the first drive control part 110 also can be configured to replacement the first reeling end 60 (or on basis of the first reeling end 60) and control by the feed roller (not shown) of upstream side by conveying downstream and than the first reeling end 60 than the first stripping portion 40 being located at, thereby controls the transporting velocity of the first carrier film 12.
In addition, the first drive control part 110 also can be configured to replacement the first reeling end 60 (or on basis of the first reeling end 60) and control by the feed roller (not shown) of carrying upstream side than the first stripping portion 40 being arranged at, thereby controls the transporting velocity of the first carrier film 12.
The first drive control part 110 can be made up of special purpose device, special circuit, also can be made up of the synergism of the program of computing machine and the above-mentioned each control step of execution, also can be made up of firmware.
(the second liquid crystal cells delivery section)
The second liquid crystal cells delivery section 104 is for delivery of being pasted with the liquid crystal cells P of the first polarizing coating 131 by the first paste section 103 and supplying with to the second paste section.The second liquid crystal cells delivery section 104 possesses makes the liquid crystal cells P that is pasted with the first polarizing coating 131 horizontally rotate the rotating mechanism (not shown) of 90 ° and the switching mechanism that the liquid crystal cells P that is pasted with the first polarizing coating 131 is spun upside down.
As described above, can use various mechanisms, the device etc. of above-mentioned explanation for polarizing coating being pasted on to the various mechanisms of another side of liquid crystal cells P.Second support film delivery section can be made up of the device same with the first carrier film delivery section, and the second paste section can be by forming with the device of Specifications with the first paste section.For example, the second dance roller can be made up of the device same with the first dance roller 30, the second reeling end can be made up of the device same with the first reeling end 60, and the second Sticking roller and the second driven roller can be made up of the mechanism same with the first Sticking roller 50a and the first driven roller 50b.In addition, the second drive control part has the function same with the first drive control part 110.
Optical display panel delivery section (not shown) can be made up of conveying roller, adsorption plate etc., and the display panels Y-direction downstream being made into by the second paste section is carried.In addition, carrying downstream also can be provided with the testing fixture for checking display panels Y.The inspection object of this testing fixture, inspection method are not particularly limited.
(method for continuous production)
The method for continuous production of the optical display panel that present embodiment relates to comprises:
Carrier film is carried operation, carries the carrier film that is laminated with the blooming that comprises this bonding agent by bonding agent in this operation;
Stripping process, in this operation, make by described carrier film carry described carrier film that operation transports with this carrier film for turning back described blooming peeled off from this carrier film medially;
Leading section is pasted operation, the leading section of the described blooming of peeling off by described stripping process is pasted on to the leading section of optical unit in this operation;
Paste operation, in this operation, before starting with the conveying in the described carrier film of carrying operation to carry out based on described carrier film, start to carry out the mode of the later part of the described leading section of the described optical thin film that described leading section has been stuck to the stickup of described optical unit, feeding optical unit is pasted on the described blooming of peeling off from described carrier film by described stripping process this optical unit and forms optical display panel by described bonding agent on one side on one side.
In described stickup operation, the stickup completing to stickup the zero hour from the stickup that described blooming is started paste to described optical unit completed in the specified time limit the moment midway during the moment, and the transporting velocity of carrier film that has made to be stripped from this blooming is consistent to the stickup speed of this optical unit stickup with described blooming.In addition, as another embodiment, in described stickup operation, the stickup completing to stickup the zero hour from the stickup that described blooming is started paste to described optical unit completed in the specified time limit moment midway in moment, made the transporting velocity of this carrier film be greater than described stickup speed.
In addition, on the opposing party's substrate of liquid crystal cells P, also paste polarizing coating, there is the convolution operation that makes liquid crystal cells P rotation and spin upside down.Convolution operation is that the liquid crystal cells P that makes to be pasted with the first polarizing coating horizontally rotates 90 ° and the operation that spins upside down.It should be noted that, as convolution operation, can make liquid crystal cells P all to overturn centered by a uneven axle with arbitrary limit of long limit and minor face, thereby the long limit of liquid crystal cells P and the position relationship of minor face are put upside down.And the operation of pasting the second polarizing coating is identical with the first above-mentioned stickup operation.
Other embodiments of < >
In the above-described embodiment, the laminated optical film of emitting from volume is cut off to (hemisect) with predetermined distance, but the present invention is not specially limited in this structure.For example, also can carry out defect inspection to the laminated optical film of emitting from volume, avoid defect based on this check result and cut off (so-called jump cutting).In addition, also can read the defect information that laminated optical film attaches in advance, avoid defect based on this defect information and cut off.Defect information can be for carrying out the information of mark can grasp the mode of shortcoming position.
In addition, also the first polarizing coating of the first volume can be cut off in advance and be formed at the first carrier film.,, as the first volume, can use the so-called volume with cut channel laminated optical film.In this case, do not need the first shut-off mechanism and the second shut-off mechanism, therefore, can shorten the productive temp time.Second roller is also similarly the volume with cut channel laminated optical film with the first volume.
In addition, in the above-described embodiment, paste blooming on the two sides of optical unit, but also can only paste blooming in the one side of optical unit.
< embodiment >
In the continuous manufacturing system of Fig. 1, the substrate that polarizing coating (VEG1724DU processed of Nitto Denko Corp) is closed with between the alkali-free glass substrate (Corning Incorporated's system) of arranged opposite to a side of the OBL liquid crystal cells of the structure of liquid crystal layer is pasted along short side direction from its long side.In embodiment and comparative example, set as described below respectively stickup speed V2 and coiling speed (being stripped from the transporting velocity of the carrier film of polarizing coating) and paste V1.
In embodiment 1, after the leading section of the polarizing coating of being peeled off by stripping portion is pasted on to the leading section of liquid crystal cells, pasting the T1 zero hour, before winding roller, make the first driven roller rotation and start to paste (V2 > 0).Then, make winding roller rotation (V1 > 0) batching zero hour T2.Then be, V1=V2 from moment (speed synchronous point) T3 midway to pasting final period.Speed synchronous point T3 is first term area.The velocity conditions of embodiment 1 is shown in Fig. 4 A.
In embodiment 2, identical with embodiment 1 except speed synchronous point T3 is the stickup lifting position in mid-term.The velocity conditions of embodiment 2 is shown in Fig. 4 B.
In embodiment 3, identical with embodiment 1 except speed synchronous point T3 is the stickup rising terminal in mid-term.The velocity conditions of embodiment 3 is shown in Fig. 4 C.
In embodiment 4, pasting the T1 zero hour, before winding roller, make the first driven roller rotation and start to paste (V2 > 0).Then, make winding roller rotation (V1 > 0) batching zero hour T2.Then, be V1 > V2 pasting mid-term, then, be V1=V2 pasting final (moment T3 midway).The velocity conditions of embodiment 4 is shown in Fig. 4 D.
In embodiment 5, pasting the T1 zero hour, before winding roller, make the first driven roller rotation and start to paste (V2 > 0).Then, make winding roller rotation (V1 > 0) batching zero hour T2.Then, in the time pasting the rising in mid-term, be V1 > V2, be V1 < V2 pasting mid-term, then, be V1=V2 pasting final (moment T3 midway).The velocity conditions of embodiment 5 is shown in Fig. 4 E.
In comparative example 1, start to pasting the final V1=V2 of being from pasting.The velocity conditions of comparative example 1 is shown in Fig. 5 A.
In comparative example 2, except from paste start to the terminal of term area pasting be V1 < V2, paste final for V1=V2 (speed synchronous point T3 is middle term area terminal), identical with embodiment 1.The velocity conditions of comparative example 2 is shown in Fig. 5 B.
Evaluate the having or not of bubble of front part between polarizing coating and the liquid crystal cells after stickup (part that the stickup initial stage pastes) by visual examination.Its result is in embodiment 1～3, there is no Bubble formation, but produce bubble in comparative example 1,2.Can confirm according to the result of this embodiment and comparative example, after the leading section of polarizing coating is pasted on to the leading section of liquid crystal cells, before the conveying of carrier film starts, carry out to paste and start, thereby can apply tension force to polarizing coating reliably from the stickup initial stage, easily the bubble of generation is bad between liquid crystal cells and polarizing coating to reduce the stickup initial stage.Can confirm in addition, in the embodiment 1 and 2 that coiling speed V1 is synchronizeed quickly with the speed of stickup V2, can also reduce the warpage of display panels.
Symbol description
11 first cascade bloomings
12 first carrier film
131 first polarizing coatings (example of blooming)
30 first dance rollers
40 first stripping portion
50a the first Sticking roller
50b the first driven roller
60 first reeling ends
60a winding roller
101 first carrier film delivery section
102 first liquid crystal cells delivery section
103 first paste sections
110 first drive control parts
P liquid crystal cells (example of optical unit)
Y display panels (example of optical display panel)

Claims (5)

1. a method for continuous production for optical display panel, wherein, comprising:
Carrier film is carried operation, carries the carrier film that is laminated with the blooming that comprises this bonding agent by bonding agent in this operation;
Stripping process, in this operation, make by described carrier film carry described carrier film that operation transports with this carrier film for turning back described blooming peeled off from this carrier film medially;
Leading section is pasted operation, the leading section of the described blooming of peeling off by described stripping process is pasted on to the leading section of optical unit in this operation;
Paste operation, in this operation, before starting with the conveying in the described carrier film of carrying operation to carry out based on described carrier film, start to carry out the mode of the later part of the described leading section of the described optical thin film that described leading section has been stuck to the stickup of described optical unit, feeding optical unit is pasted on the described blooming of peeling off from described carrier film by described stripping process this optical unit and forms optical display panel by described bonding agent on one side on one side.
2. the method for continuous production of optical display panel according to claim 1, wherein,
In described stickup operation, in specified time limit the moment midway during the stickup completing to stickup the zero hour from the stickup that described blooming is started paste to described optical unit completes the moment, transporting velocity and the described blooming of carrier film that has made to be stripped from this blooming is consistent or be greater than described stickup speed to the stickup speed of this optical unit stickup.
3. a continuous manufacturing system for optical display panel, wherein, has:
Carrier film delivery section, it carries the carrier film that is laminated with the blooming that comprises this bonding agent by bonding agent;
Stripping portion, its make the carrier film that transports by described carrier film delivery section with this carrier film for turning back described blooming peeled off from this carrier film medially;
Paste section, its leading section by the described blooming of peeling off by described stripping portion is pasted on the leading section of optical unit, and on one side feeding optical unit is pasted on the described blooming of peeling off from described carrier film this optical unit by described bonding agent on one side and forms optical display panel;
Drive control part, it drives and controls and described carrier film delivery section driven to control described paste section in the following manner: before the conveying of the described carrier film of carrying out based on described carrier film delivery section starts, start the stickup of the later part of the described leading section of execution described blooming that carry out based on described paste section, that described leading section has been stuck to described optical unit.
4. the continuous manufacturing system of optical display panel according to claim 3, wherein,
The tension adjustment portion of the tension force of described carrier film delivery section in the time thering is by upstream side place the conveying of adjusting carrier film than described stripping portion.
5. according to the continuous manufacturing system of the optical display panel described in claim 3 or 4, wherein,
Described drive control part drives control to described paste section and described carrier film delivery section in the following manner: in the specified time limit the moment midway during the stickup completing to stickup the zero hour from the stickup that described blooming is started paste to described optical unit completes the moment, make transporting velocity based on described carrier film described carrier film delivery section, that be stripped from this blooming with consistent or be greater than described stickup speed to the stickup speed of described optical unit stickup based on blooming described paste section, described.
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