WO2015021702A1 - 偏光片剥离机及剥离方法 - Google Patents

偏光片剥离机及剥离方法 Download PDF

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Publication number
WO2015021702A1
WO2015021702A1 PCT/CN2013/087440 CN2013087440W WO2015021702A1 WO 2015021702 A1 WO2015021702 A1 WO 2015021702A1 CN 2013087440 W CN2013087440 W CN 2013087440W WO 2015021702 A1 WO2015021702 A1 WO 2015021702A1
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WO
WIPO (PCT)
Prior art keywords
polarizer
blade
peeling
stripping
liquid
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PCT/CN2013/087440
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English (en)
French (fr)
Inventor
梁魁
Original Assignee
京东方科技集团股份有限公司
北京京东方显示技术有限公司
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Publication of WO2015021702A1 publication Critical patent/WO2015021702A1/zh

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Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B32—LAYERED PRODUCTS
    • B32B—LAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B38/00—Ancillary operations in connection with laminating processes
    • B32B38/10—Removing layers, or parts of layers, mechanically or chemically
    • 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
    • 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
    • B32B2310/00—Treatment by energy or chemical effects
    • B32B2310/04—Treatment by energy or chemical effects using liquids, gas or steam
    • B32B2310/0409—Treatment by energy or chemical effects using liquids, gas or steam using liquids
    • B32B2310/0418—Treatment by energy or chemical effects using liquids, gas or steam using liquids other than water
    • 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
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1335—Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133528—Polarisers

Definitions

  • Embodiments of the present invention relate to a polarizer peeling machine and a peeling method. Background technique
  • the attachment effect of attaching a polarizer to a liquid crystal panel has an important influence on the display effect of an LCD (Liquid Crystal Display). If the attaching accuracy is not sufficient, such as bubbles and polarizer scratches, etc., it is necessary to peel off the attached polarizer from the liquid crystal panel, and then reattach the new polarizer, for example, to meet the quality requirements of the product. .
  • a conventional method for peeling off a polarizer is: first cutting a joint of a polarizer and a glass substrate of a liquid crystal panel with a blade to lift the front portion of the polarizer, and then pulling the front portion of the polarizer up to the polarizer and the glass The substrate is separated.
  • a conventional polarizer peeling machine employs a single roller system, and the polarizer peeling operation cannot be continuously performed during operation, which is inefficient, as shown in FIG.
  • the liquid crystal panel 1 is carried by the two stages 3, and the front section of the polarizer 2 is lifted by a blade, and the front section of the warp is connected to the single roller 4, and the polarizer 2 is peeled off by the single roller 4.
  • the polarizer 2 is peeled off from the glass substrate of the liquid crystal panel 1
  • the liquid crystal panel 1 slides on the operation platform, and the static electricity may accumulate a large amount of static electricity, which may cause great harm to the circuit and the operator of the liquid crystal panel 1.
  • One aspect of the present invention provides a polarizer peeling machine, the peeling machine comprising a peeling blade for peeling off a polarizer, and the liquid chemical system comprising a liquid jet head, in the peeling While the blade peels off the polarizer, the liquid ejecting head sprays the binder remover to the polarizer.
  • the ends of the blade of the stripping blade may be curved.
  • the peeling blade can be disposed obliquely.
  • the liquid jet head may be disposed above the peeling blade.
  • a baffle is disposed above the stripping blade, and the liquid ejecting head is disposed between the stripping blade and the baffle.
  • the medical liquid system may further include a chemical supply mechanism that is coupled to the liquid chemical head to provide a binder remover.
  • the stripper may further include a first carrier platform for carrying the liquid crystal panel.
  • the first carrier platform is provided with a vacuum adsorption device for adsorbing the liquid crystal panel.
  • the stripper may further include a first rail mounted on the first rail and movable along the first rail.
  • the stripper can also include a second carrier platform for carrying the stripping blade.
  • the stripper may further include a second rail disposed perpendicular to the first rail, the second carrier platform being mounted on the second rail and movable along the second rail.
  • Another aspect of the present invention provides a polarizer stripping method, comprising: adsorbing a liquid crystal panel on a first carrying platform and moving along a first rail; and placing the stripping blade on the second carrying platform and along The second guide rail moves; while the peeling blade peels off the polarizer, the adhesive remover is supplied to the surface between the polarizer and the liquid crystal panel along the surface of the peeling blade via the chemical liquid system, and the peeling blade is assisted to perform the peeling operation of the polarizer.
  • Figure 1 is a side view of a conventional polarizer peeling machine
  • Figure 2 is a side view of a polarizer peeling machine in accordance with an embodiment of the present invention.
  • FIG. 3A is a schematic plan view of a polarizer peeling machine according to an embodiment of the present invention
  • FIG. 3B is a schematic view of the first rail and the second rail;
  • FIG. 4 is a schematic structural view of a peeling blade according to an embodiment of the present invention.
  • Fig. 5 is a schematic view showing the working state of the peeling machine of the embodiment of the present invention.
  • a polarizer peeling machine includes a peeling blade 30 and a liquid chemical system.
  • the peeling blade 30 is used to peel off the polarizer 20, and the liquid chemical system includes the chemical liquid jet head 41. While the peeling blade 30 peels off the polarizing plate 20, the liquid ejecting head 41 sprays an adhesive remover between the polarizing plate 20 and the liquid crystal panel 10.
  • the peeling blade 41 is disposed obliquely so that the chemical liquid flows along the surface of the peeling blade 30 between the polarizer 20 and the liquid crystal panel 10.
  • the binder remover removes the adhesive between the polarizer 20 and the liquid crystal panel 10, so that the polarizer 20 and The bonding between the liquid crystal panels 10 is disabled, so that the polarizer 20 can be easily peeled off.
  • the binder remover eliminates static build-up during operation and ensures operator and circuit equipment safety.
  • the liquid ejecting head 41 may be externally connected to a device (not shown) for supplying a binder removing agent liquid, or a liquid supply mechanism may be provided in the liquid medicine system, and the liquid ejecting head 41 is connected to the liquid supplying mechanism.
  • the chemical supply mechanism is used to provide a binder remover for the peeling operation of the peeling blade 30.
  • the liquid medicine head 41 may be a capillary nozzle.
  • the two ends of the blade of the stripping blade 30 are curved, and the two ends of the blade are arranged in an arc shape.
  • the blade 30 is embedded between the liquid crystal panel 10 and the polarizer 20, and on the other hand, the blade 30 can be prevented.
  • the blade scratches the polarizer, as shown in Figure 4.
  • the liquid ejecting head 41 is disposed above the peeling blade 30, so that the chemical liquid can flow better along the surface of the peeling blade 30 between the polarizer 20 and the liquid crystal panel 10.
  • the baffle 50 may be disposed above the stripping blade 30, and the baffle 50 is inclined in the same direction as the stripping blade 30.
  • the liquid medicine head 41 is provided between the peeling blade 30 and the shutter 50.
  • the function of the baffle 50 is to prevent the chemical liquid from being sprayed onto the external space other than the peeling area between the polarizer 20 and the liquid crystal panel 10, so that the chemical liquid can completely enter the target position (the polarizer 20 and the liquid crystal panel).
  • the polarizing plate 20 can be isolated to separate the polarizer 20 from the upper portion of the shutter 50, whereby the polarizing plate 20 can be removed by a holding device.
  • the baffle 50 is also provided to prevent the polarizer from blocking the liquid ejecting head 41.
  • the stripping machine of the embodiment of the present invention may further include a first carrying platform 61 for carrying the liquid crystal panel 10.
  • the first carrier platform 61 is provided with a vacuum adsorption device 62 for adsorbing the liquid crystal panel 10 so that the liquid crystal panel 10 is tightly fixed on the first carrier platform 61, and also facilitates unloading of the liquid crystal panel 10 to prevent peeling off polarization.
  • the liquid crystal panel 10 is loosened, which affects the peeling operation.
  • the stripper of the embodiment of the present invention may further include a first guide rail 63 mounted on the first rail 63 and movable along the first rail 63.
  • a first guide rail 63 mounted on the first rail 63 and movable along the first rail 63.
  • the liquid crystal panel 10 is continuously conveyed to the peeling position on the first guide rail 63 and simultaneously peeled off, and the liquid crystal panel 10 is directly passed through the first guide rail 63, for example, after the polarizing plate 20 is peeled off. It is transported out, thereby achieving continuity of the peeling operation.
  • the first rail 63 can be a conveyor belt.
  • the stripper of the embodiment of the invention of the embodiment of the invention may further comprise a second carrier platform 70 for carrying the stripping blade 30 and the baffle 50.
  • the upper end of the stripping blade 30 is fixedly coupled to the second carrier platform 70, and the lower end thereof is a blade edge. In operation, it is placed between the polarizer 20 and the liquid crystal panel 10, and the liquid ejecting head 41 is disposed on the second carrying platform 70.
  • the upper end of the baffle 50 is fixedly coupled to the second carrying platform 70, and the lower end thereof is connectable to the peeling blade 30 and blocks the blade of the peeling blade 30 to ensure normal peeling operation of the blade.
  • the stripper of the embodiment of the present invention may further include a second rail 73 (not shown) disposed perpendicularly to the first rail 63, for example, the second rail 73 is disposed above the first rail 63.
  • the second carriage platform 70 can be mounted on the second rail 73 and movable along the second rail 73.
  • the peeling blade 30 is fixed to the second carrier platform 70 and moves in the direction of the second rail 73 to generate a shear force when the liquid crystal panel 10 is translated in the direction of the first rail 63, so that the polarizing plate 20 can be peeled off.
  • the stripping blade 30 may be made of ceramic or metal or plastic, and the plastic material is preferably a reinforced plastic such as a tetrafluoroethylene material.
  • the binder remover may be a remover of ethanol or propanol or acetone or other single polarizer binder, etc., and these binder removers may also be used in a certain ratio.
  • the diluted mixed solution for example, the binder remover may be 30% to 70% by volume of an aqueous solution of ethanol (or propanol or acetone), or may be ethanol (30%)-propanol (20). %) - A mixed solution of water (50%).
  • the mixed solution is mainly water and has a variety of reagents added, which saves reagent consumption and reduces costs.
  • the medical liquid supply mechanism of the medical liquid system of the embodiment of the present invention includes a medical liquid supply passage 42 communicating with the chemical liquid nozzle 41, a medical liquid storage system 43 connected to the liquid inlet of the medical liquid supply passage 42, and a medical liquid storage system. 43 connected liquid recovery system 44.
  • the present invention also provides a peeling method of the above polarizer peeling machine, which can be carried out as follows.
  • the liquid crystal panel 10 is tightly adsorbed on the first carrying platform 61 by vacuum suction, and can be moved along the first guide rail 63, and the liquid crystal panel without peeling off the polarizing plate is fed into the designated area (ie, the area where the peeling blade 30 is located)
  • the peeling blade 30 and the spraying system work simultaneously, the peeling blade 30 moves along the second rail 73 disposed perpendicularly to the first rail 63, and the binder remover flows from the liquid jet head 41 into the blade edge, and the binder remover Flowing between the liquid crystal panel 10 and the polarizer 20 along the blade edge, the adhesive between the liquid crystal panel 10 and the polarizer 20 is removed to lose the adhesion, and the moving direction of the liquid crystal panel 10 and the moving direction of the peeling blade 30 are mutually Vertically, a tangential force is generated to peel off the polarizer; under the urging action
  • the polarizer peeling machine and the peeling method provided by the above technical solutions mainly include the following advantages.
  • the adhesive remover is sprayed during the stripping process of the polarizer, and the binder remover removes the adhesive between the polarizer and the liquid crystal panel, so that the bonding between the polarizer and the liquid crystal panel is invalid, thereby easily peeling off Polarizers, while the binder remover eliminates static electricity and ensures operator and circuit equipment safety.
  • the ends of the blade of the stripping blade are set to be curved, on the one hand, the blade is easily embedded between the liquid crystal panel and the polarizer, and on the other hand, the blade can be prevented from scratching the polarizer.
  • the liquid crystal panel can be adsorbed on the first carrying platform, and the first carrying platform moves along the first guiding rail, and the liquid crystal panel can be continuously conveyed through the first guiding rail to perform the peeling operation. It saves processes and improves efficiency.
  • the liquid medicine nozzle can be disposed between the peeling blade and the baffle plate, and on the other hand, the chemical liquid can be prevented from being sprayed to the outer space except the peeling area between the peeling blade and the liquid crystal panel, so that the liquid medicine is completely Entering the target position, on the other hand, the polarizer can be isolated to separate the polarizer from the upper portion of the baffle, whereby the polarizer can be removed by the clamping device; in addition, a baffle can be provided to prevent the polarizer from blocking the liquid ejecting head.

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

Abstract

一种偏光片剥离机包括剥离刀片和药液系统，所述剥离刀片用于剥离偏光片，所述药液系统包括药液喷头，在所述剥离刀片对偏光片进行剥离的同时，所述药液喷头向偏光片喷洒粘结剂去除剂。还公开了一种偏光片剥离方法。该偏光片剥离机及方法可提高剥离效率，同时粘结剂去除剂可消除静电。

Description

偏光片剥离机及剥离方法 技术领域
本发明的实施例涉及一种偏光片剥离机及剥离方法。 背景技术
在 TFT-LCD (薄膜晶体管液晶显示器 )制备过程中， 将偏光片贴附至液 晶面板的贴附效果对 LCD (液晶显示器）的显示效果有着重要的影响。 如果 贴附精度不够， 例如出现气泡以及偏光片刮伤等情况， 都需要将已经贴附的 偏光片从液晶面板上剥离下来， 再重新进行贴附例如新的偏光片， 以满足产 品的品质要求。
一种传统的剥离偏光片的方法是： 先用刀片切入偏光片与液晶面板的玻 璃基板的结合缝以使偏光片的前段翘起， 再扯拉偏光片翘起的前段， 直至偏 光片与玻璃基板分离。
一种传统的偏光片剥离机采用的是单滚轴系统， 操作过程中不能连续进 行偏光片剥离操作， 其效率较低， 如图 1所示。 液晶面板 1由两个平台 3进 行承载， 将用刀片将偏光片 2的前段翘起， 该翘起的前段与单滚轴 4连接， 采用单滚轴 4将偏光片 2剥离。 在偏光片 2从液晶面板 1的玻璃基板上剥离 的过程中， 液晶面板 1在操作平台上滑动， 由于摩擦会积累大量静电， 该静 电可能对液晶面板 1的电路与操作人员带来巨大危害。 发明内容
本发明的一个方面提供了一种偏光片剥离机， 所述剥离机包括剥离刀片 和药液系统， 所述剥离刀片用于剥离偏光片， 所述药液系统包括药液喷头， 在所述剥离刀片对偏光片进行剥离的同时， 所述药液喷头向偏光片喷洒粘结 剂去除剂。
例如， 所述剥离刀片的刀锋的两端可以为弧形。
例如， 所述剥离刀片可以倾斜设置。
例如， 所述药液喷头可以设于所述剥离刀片的上方。 例如， 所述剥离刀片的上方设有挡板， 所述药液喷头设于所述剥离刀片 和挡板之间。
例如， 所述药液系统还可以包括药液供应机构， 所述药液供应机构与所 述药液喷头连接， 用于提供粘结剂去除剂。
例如， 所述剥离机还可以包括第一载运平台， 用于载运所述液晶面板。 例如，所述第一载运平台上设有真空吸附装置，用于吸附所述液晶面板。 例如， 所述剥离机还可以包括第一导轨， 所述第一载运平台安装在所述 第一导轨上并可沿所述第一导轨移动。
例如， 所述剥离机还可以包括第二载运平台， 用于载运所述剥离刀片。 例如， 所述剥离机还可以包括与所述第一导轨垂直设置的第二导轨， 所 述第二载运平台安装在所述第二导轨上并可沿所述第二导轨移动。
本发明的另一个方面还提供了一种偏光片剥离方法， 包括： 将液晶面板 吸附在第一载运平台上， 并沿着第一导轨移动； 将剥离刀片设置在第二载运 平台上并沿着第二导轨移动； 剥离刀片剥离偏光片的同时， 粘结剂去除剂经 药液系统沿着剥离刀片的表面被提供至偏光片和液晶面板之间， 辅助剥离刀 片进行偏光片的剥离作业。 附图说明
为了更清楚地说明本发明实施例的技术方案， 下面将对实施例的附图作 筒单地介绍，显而易见地，下面描述中的附图仅仅涉及本发明的一些实施例， 而非对本发明的限制。
图 1是传统的偏光片剥离机的侧视图；
图 2是本发明实施例的偏光片剥离机的侧视图；
图 3A是本发明实施例的偏光片剥离机的俯视示意图，图 3B是第一导轨 和第二导轨的示意图；
图 4是本发明实施例的剥离刀片的结构示意图；
图 5是本发明实施例的剥离机的工作状态原理图。
附图标记：
1 , 10、 液晶面板； 2, 20、 偏光片； 3、 平台； 4、 单滚轴； 30、 剥离刀 片； 41、 药液喷头； 42、 药液供应通道； 43、 药液储存系统； 44、 药液回收 系统； 50、 挡板； 61、 第一载运平台； 62、 真空吸附装置； 63、 第一导轨； 70、 第二载运平台； 73、 第二导轨。 具体实施方式
为使本发明实施例的目的、 技术方案和优点更加清楚， 下面将结合本发 明实施例的附图，对本发明实施例的技术方案进行清楚、 完整地描述。显然， 所描述的实施例是本发明的一部分实施例， 而不是全部的实施例。 基于所描 述的本发明的实施例， 本领域普通技术人员在无需创造性劳动的前提下所获 得的所有其他实施例， 都属于本发明保护的范围。
如图 1所示的传统的方法以及装置， 存在如何消除偏光片与液晶面板剥 离时所产生的静电并提高剥离效率的问题。
如图 2和 3所示， 本发明实施例的一种偏光片剥离机， 该剥离机包括剥 离刀片 30和药液系统。 剥离刀片 30用于剥离偏光片 20, 药液系统包括药液 喷头 41。 剥离刀片 30对偏光片 20进行剥离的同时， 药液喷头 41在偏光片 20和液晶面板 10之间喷洒粘结剂去除剂。 优选地， 剥离刀片 41倾斜设置， 可以使得药液沿着剥离刀片 30的表面流向偏光片 20和液晶面板 10之间。
在从液晶面板 10剥离偏光片 2的同时，粘结剂去除剂被提供至偏光片 2, 粘结剂去除剂可去除偏光片 20和液晶面板 10之间的粘结剂，使得偏光片 20 和液晶面板 10之间的粘结作用失效， 从而轻松剥离偏光片 20。 同时， 粘结 剂去除剂可消除在操作中积累的静电， 确保操作人员和电路设备的安全。
该药液喷头 41可外接供应粘结剂去除剂药液的设备 (未示出 ) , 也可以 在药液系统中设置一药液供应机构， 药液喷头 41与该药液供应机构相连接。 药液供应机构用于为剥离刀片 30的剥离作业提供粘结剂去除剂。例如， 药液 喷头 41可以为毛细管喷嘴。
本发明实施例中剥离刀片 30的刀锋的两端为弧形，将刀锋的两端设置为 弧形，一方面方便刀片 30嵌入液晶面板 10和偏光片 20之间，另一方面可以 防止刀片 30的刀锋将偏光片划伤， 如图 4所示。
例如， 药液喷头 41设于剥离刀片 30的上方， 可以使得药液更好地沿着 剥离刀片 30的表面流向偏光片 20和液晶面板 10之间。本发明实施例中，剥 离刀片 30的上方可设有挡板 50, 挡板 50与剥离刀片 30同方向倾斜设置， 药液喷头 41设于剥离刀片 30和挡板 50之间。 挡板 50的作用是： 一方面可 防止药液喷洒到除偏光片 20和液晶面板 10之间的剥离区域之外的外部空间， 以使得药液全部地进入目标位置（偏光片 20和液晶面板 10之间的剥离区域）； 另一方面可以隔离偏光片 20, 使偏光片 20从挡板 50上部分离， 由此可采用 夹持装置将偏光片 20移去。 同时， 设置挡板 50也可以防止偏光片遮挡药液 喷头 41。
结合图 3和图 5 , 本发明实施例的剥离机还可以包括第一载运平台 61 , 用于载运液晶面板 10。 例如， 第一载运平台 61上设有真空吸附装置 62, 用 于吸附液晶面板 10使得液晶面板 10紧紧地固定在第一载运平台 61上，并也 方便液晶面板 10的卸载，以防止剥离偏光片 20时液晶面板 10松动，而影响 剥离作业。
本发明实施例的剥离机还可以包括第一导轨 63, 第一载运平台 61安装 在第一导轨 63上并可沿该第一导轨 63移动。在偏光片 20的剥离过程中，在 第一导轨 63上液晶面板 10连续不断地被输送到剥离位置并同时进行剥离， 液晶面板 10在偏光片 20被剥离完成后再例如直接经由第一导轨 63运输出 去， 由此实现了剥离作业的连续性。 例如， 第一导轨 63可以为传输带。
本发明实施例的本发明实施例的剥离机还可以包括第二载运平台 70,用 于承载剥离刀片 30和挡板 50。例如，剥离刀片 30的上端与第二载运平台 70 固定连接， 其下端为刀锋， 在操作中抵在偏光片 20和液晶面板 10之间， 药 液喷头 41设于该第二载运平台 70上。 挡板 50的上端与第二载运平台 70固 定连接， 其下端可与剥离刀片 30连接并部遮挡住剥离刀片 30的刀锋， 保证 刀锋的正常剥离作业。
本发明实施例的剥离机还可以包括与第一导轨 63 垂直设置的第二导轨 73 (图中未示出） ， 例如， 第二导轨 73设于第一导轨 63的上方。 第二载运 平台 70可以安装在第二导轨 73上并可沿该第二导轨 73移动。 剥离刀片 30 固定在第二运载平台 70上，沿第二导轨 73方向移动，在液晶面板 10沿第一 导轨 63方向平移时产生切力， 从而可以剥离偏光片 20。
例如，剥离刀片 30可由陶瓷或金属或塑料制成，塑料材料优选为强化塑 料， 如四氟乙烯材料。 例如， 粘结剂去除剂可为乙醇或丙醇或丙酮或其他单 一的偏光片粘结剂的去除剂等， 也可以按照一定比例将这些粘结剂去除剂的 稀释混合溶液也同样适用； 例如， 该粘结剂去除剂可以为 30%-70% (体积百 分比）的乙醇（或丙醇或丙酮）水溶液， 也可以是乙醇（ 30% ) -丙醇（ 20% ) -水（50% ) 的混合溶液， 混合溶液主要是以水为主体， 并添加有多种试剂， 这可以节省试剂的消耗量， 降低成本。
本发明实施例的药液系统的药液供应机构包括与药液喷头 41 连通的药 液供应通道 42、与药液供应通道 42的进液口连接的药液储存系统 43和与药 液储存系统 43连接的药液回收系统 44。
本发明还提供了一种上述偏光片剥离机的剥离方法， 该方法可以如下进 行。 液晶面板 10通过真空吸附被紧紧地吸附在第一载运平台 61上， 并可沿 着第一导轨 63移动推进，未剥离偏光片的液晶面板被送入指定区域（即剥离 刀片 30所在的区域）， 剥离刀片 30和喷药系统同时工作， 剥离刀片 30沿着 与第一导轨 63垂直设置的第二导轨 73移动， 同时粘结剂去除剂从药液喷头 41流入刀锋， 粘结剂去除剂沿着刀锋流入液晶面板 10和偏光片 20之间， 去 除液晶面板 10和偏光片 20之间的粘结剂以让其失去粘附性， 液晶面板 10 的移动方向和剥离刀片 30的移动方向相互垂直， 由此可产生向切力，以剥离 偏光片；在第一载运平台 61的推动作用下，未剥离偏光片的液晶面板被连续 不断地送到指定区域进行偏光片 20 的剥离， 剥离的整个过程都与剥离刀片 30处于相对运动的过程中， 剥离作业不停歇， 剥离后的液晶面板沿第一导轨 输送出去离开该指定区域。
在剥离过程中， 需配合药液系统对偏光片和液晶面板之间的剥离作业供 应粘结剂去除剂， 粘结剂去除剂辅助剥离刀片进行偏光片的剥离作业。
上述技术方案所提供的偏光片剥离机及剥离方法主要包括以下优点。
1、偏光片剥离过程中喷射粘结剂去除剂，粘结剂去除剂可去除偏光片和 液晶面板之间的粘结剂， 使得偏光片和液晶面板之间的粘结作用失效， 从而 轻松剥离偏光片， 同时粘结剂去除剂可消除静电， 确保操作人员和电路设备 的安全。
2、进一步地，如果将剥离刀片的刀锋的两端设置为弧形， 一方面方便刀 片嵌入液晶面板和偏光片之间， 另一方面可以防止刀锋将偏光片划伤。
3、进一步地， 可将液晶面板吸附在第一载运平台上， 该第一载运平台沿 第一导轨移动， 通过第一导轨可以连续不断地输送液晶面板进行剥离作业， 节约了工序， 提高了效率。
4、进一步地， 可将药液喷头设于剥离刀片和挡板之间，一方面可防止药 液喷洒到除剥离刀片和液晶面板之间的剥离区域之外的外部空间， 使得药液 全部地进入目标位置，另一方面可以隔离偏光片，使偏光片从挡板上部分离， 由此可以采用夹持装置将偏光片移去； 另外， 也可以设置挡板以防止偏光片 遮挡药液喷头。
以上所述仅是本发明的示范性实施方式， 而非用于限制本发明的保护范 围， 本发明的保护范围由所附的权利要求确定。

Claims

权利要求书
1、 一种偏光片剥离机， 包括剥离刀片和药液系统， 其中， 所述剥离刀片 用于剥离偏光片， 所述药液系统包括药液喷头， 在所述剥离刀片对偏光片进 行剥离的同时， 所述药液喷头向偏光片喷洒粘结剂去除剂。
2、如权利要求 1所述的偏光片剥离机， 其中， 所述剥离刀片的刀锋的两 端为弧形。
3、如权利要求 1或 2所述的偏光片剥离机， 其中， 所述剥离刀片倾斜设 置。
4、 如权利要求 1-3任一所述的偏光片剥离机， 其中， 所述药液喷头设于 所述剥离刀片的上方。
5、如权利要求 4所述的偏光片剥离机， 其中， 所述剥离刀片的上方设有 挡板， 所述药液喷头设于所述剥离刀片和挡板之间。
6、 如权利要求 1-5任一所述的偏光片剥离机， 其中， 所述药液系统还包 括药液供应机构， 所述药液供应机构与所述药液喷头连接， 用于提供粘结剂 去除剂。
7、 如权利要求 1-6任一项所述的偏光片剥离机， 其中， 所述剥离机还包 括第一载运平台， 用于载运所述液晶面板。
8、如权利要求 7所述的偏光片剥离机， 其中， 所述第一载运平台上设有 真空吸附装置， 用于吸附所述液晶面板。
9、如权利要求 7或 8所述的偏光片剥离机，还包括第一导轨， 所述第一 载运平台安装在所述第一导轨上并可沿所述第一导轨移动。
10、 如权利要求 9所述的偏光片剥离机， 还包括第二载运平台， 用于载 运所述剥离刀片。
11、如权利要求 10所述的偏光片剥离机，还包括与所述第一导轨垂直设 置的第二导轨， 所述第二载运平台安装在所述第二导轨上并可沿所述第二导 轨移动。
12、 一种偏光片剥离方法， 包括：
液晶面板被吸附在第一载运平台上， 并沿着第一导轨移动； 剥离刀片设 置在第二载运平台上并沿着第二导轨移动； 剥离刀片剥离偏光片的同时， 粘结剂去除剂经药液系统沿着剥离刀片的 表面被提供至偏光片和液晶面板之间。
PCT/CN2013/087440 2013-08-13 2013-11-19 偏光片剥离机及剥离方法 WO2015021702A1 (zh)

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