WO2015109987A1 - 一种用于偏光板撕除的装置及方法 - Google Patents

一种用于偏光板撕除的装置及方法 Download PDF

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WO2015109987A1
WO2015109987A1 PCT/CN2015/071074 CN2015071074W WO2015109987A1 WO 2015109987 A1 WO2015109987 A1 WO 2015109987A1 CN 2015071074 W CN2015071074 W CN 2015071074W WO 2015109987 A1 WO2015109987 A1 WO 2015109987A1
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Prior art keywords
tearing
polarizing plate
module
liquid
platform
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English (en)
French (fr)
Inventor
刘志诚
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TCL China Star Optoelectronics Technology Co Ltd
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Shenzhen China Star Optoelectronics Technology Co Ltd
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Priority to US14/647,106 priority Critical patent/US20160318295A1/en
Publication of WO2015109987A1 publication Critical patent/WO2015109987A1/zh
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    • BPERFORMING OPERATIONS; TRANSPORTING
    • B32LAYERED PRODUCTS
    • B32BLAYERED PRODUCTS, i.e. PRODUCTS BUILT-UP OF STRATA OF FLAT OR NON-FLAT, e.g. CELLULAR OR HONEYCOMB, FORM
    • B32B43/00Operations specially adapted for layered products and not otherwise provided for, e.g. repairing; Apparatus therefor
    • B32B43/006Delaminating
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/1306Details
    • G02F1/1309Repairing; Testing
    • GPHYSICS
    • G02OPTICS
    • G02FOPTICAL 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
    • G02F1/00Devices 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
    • G02F1/01Devices 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 
    • G02F1/13Devices 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
    • G02F1/133Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333Constructional arrangements; Manufacturing methods
    • G02F1/1335Structural association of cells with optical devices, e.g. polarisers or reflectors
    • G02F1/133528Polarisers

Definitions

  • the present invention belongs to the field of TFT-LCD (transistor liquid crystal display), and particularly relates to a device and method for tearing off a polarizing plate.
  • TFT-LCD transistor liquid crystal display
  • a device for tearing off a polarizing plate wherein the device for tearing off a polarizing plate comprises a tearing platform, a clamping module, a liquid discharging module, and the tearing platform
  • the clamping module is used for clamping the tearing angle of the polarizing plate
  • the liquid discharging module is used for spraying the misty liquid to the contact interface between the polarizing plate and the glass panel to reduce the adhesion.
  • the liquid discharge module moves horizontally in synchronization with the tear-off platform.
  • the liquid ejected by the liquid ejecting module is water.
  • the apparatus for tearing off the polarizing plate further includes a holding module for holding the tearing angle in a state after the tearing.
  • the holding module is a wind knife.
  • a method for tearing off a polarizing plate comprising the steps of:
  • a tearing step for tearing the tear-off angle of the defective polarizing plate and clamping the polarized light with the clamping module The tear angle of the board;
  • the liquid spraying step is for spraying the mist liquid to the contact interface between the polarizing plate and the glass panel by the liquid discharging module to reduce the adhesion.
  • the liquid discharging module moves horizontally in synchronization with the tearing platform.
  • the liquid ejected by the liquid ejecting module is water.
  • the tearing step includes a holding step for maintaining the tearing angle in the torn state with the holding module.
  • the holding module is a wind knife.
  • the device for tearing off the polarizing plate of the present invention comprises a liquid discharging module for spraying a liquid liquid to the contact interface between the polarizing plate and the glass panel to reduce the adhesion force, and setting
  • the liquid discharging module sprays a liquid (for example, water) on the adhesive (for example, PSA glue) on the defective polarizing plate, and the viscosity of the adhesive is sharply decreased after the liquid is encountered, and the peeling speed is increased.
  • Figure 1 is a front elevational view of an apparatus for polarizing plate tearing for comparison with a device for polarizing plate tearing according to an embodiment of the present invention.
  • FIG. 2 is a front elevational view of an apparatus for tearing off a polarizing plate in accordance with an embodiment of the present invention.
  • FIG. 3 is a front elevational view of an apparatus for tearing off a polarizing plate in accordance with another embodiment of the present invention.
  • FIG. 4 is a flow chart of a method for tearing off a polarizing plate in accordance with an embodiment of the present invention.
  • Figure 5 is a flow diagram of a tearing step of a method for tearing off a polarizing plate in accordance with another embodiment of the present invention.
  • the device for tearing off the polarizing plate includes a tearing platform 10 for holding the glass panel 20, and the clamping module 40 for clamping the tearing angle of the polarizing plate 30. 32.
  • the glass panel to which the polarizing plate 30 is attached is first attached.
  • the clamping module 40 includes a front tear roller 41 and a rear tear roller 42 for holding the polarizing plate 30 during the process of tearing off the polarizing plate 30.
  • the clamping module 40 may further include a tearing clip for gripping the free end of the tear angle 32 to tear the polarizing plate 30 away.
  • the tearing platform 10 and the clamping module 40 are horizontally moved, and the tearing platform 10 is opposite to the clamping module 40. Movement, tearing off the polarizing plate 30.
  • the above polarizing plate tearing and repairing is torn off by mechanical external force.
  • an adhesive for example, PSA glue
  • the adhesion of the adhesive may change over time and subsequent storage and module aging processes and possible reliability processes may cause a sudden change in adhesion.
  • the strength of the polarizing plate 30 is less than the adhesive force, the breakage may occur, so that the rear tearing can only be manually removed, which is time consuming and laborious.
  • the glass panel 20 is prone to breakage and breakage, resulting in economic loss.
  • the device for tearing off the polarizing plate includes a tearing platform 100, a clamping module 400, and a liquid discharging module 500.
  • the tear-off platform 100 is used to fix the glass panel 200.
  • the clamping module 400 is used to clamp the tearing angle 302 of the polarizing plate 300.
  • the liquid ejecting module 500 is used to spray a misty liquid to the contact interface of the polarizing plate 300 and the glass panel 200 to reduce the adhesive force of the adhesive.
  • the adhesive is PSA adhesive (Pressure Sensitive Adhesive).
  • the apparatus for peeling off the polarizing plate of the present embodiment adds a liquid ejecting module to the apparatus for peeling off the polarizing plate shown in FIG.
  • the liquid ejected from the liquid ejecting module 500 is adapted to reduce the adhesive force of the adhesive.
  • the liquid spray module 500 may be a pure water spray mechanism that sprays a linear water flow or sprays mist water.
  • the PSA glue sprayed on the polarizing plate contacts the edge of the glass panel surface.
  • the PSA glue has a sharp decrease in viscosity after water contact, which reduces the adhesion and increases the tearing speed. Thereby, surface residual residue and breakage of the polarizing plate can be avoided, the repair efficiency is improved, labor and material cost are saved.
  • the liquid ejection module 500 is synchronized with the tear-off platform 100. mobile.
  • the liquid ejecting module 500 moves to the left in the horizontal direction X in synchronization with the tear-off platform 100.
  • the clamping module 400 is fixed, and the relative movement between the tearing platform 100 and the clamping module 400 occurs, thereby quickly and smoothly tearing off the polarizing plate 300.
  • the liquid discharge module 500 moves horizontally in synchronization with the clamping module 400, and the tearing platform 100 remains stationary.
  • the means for tearing off the polarizing plate further includes a holding module 600.
  • the retaining module 600 is used to maintain the tear angle 302 in a state after tearing.
  • the holding module 600 can be an air knife.
  • the liquid (for example, the water flow) ejected from the liquid ejecting module 500 is spray-like linear, and the spraying position is the contact interface with the glass surface after the polarizing plate is torn. Moreover, the amount of liquid sprayed by the spray module 500 and the pressure can be adjusted to suit a particular application.
  • a method for tearing off a polarizing plate is also provided.
  • the method for peeling off the polarizing plate employs the above-described means for tearing off the polarizing plate.
  • the method for tearing off the polarizing plate includes a start step S10, a fixing step S20, a tearing step S30, a liquid discharging step S40, and an ending step S50.
  • the fixing step S20 is for fixing the glass panel 200 to the tearing platform 100.
  • the tearing step S30 is for tearing off the tearing angle of the defective polarizing plate 300, and clamping the tearing angle 302 of the polarizing plate 300 by the clamping module 400.
  • the liquid ejecting step S40 is for ejecting a misty liquid (for example, misty water) to the contact interface of the polarizing plate 300 and the glass panel 200 by the liquid ejecting module 500 to reduce the adhesive force of the viscose.
  • the liquid discharging module 500 and the tearing platform 100 can be horizontally moved in synchronization.
  • the tearing step S30 may include maintaining step S32.
  • the holding step S32 is for holding the tearing angle 302 in the state after the tearing by the holding module 600.
  • the holding module 600 may be an air knife that applies a wind pressure to the tearing angle 302.

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Mathematical Physics (AREA)
  • Polarising Elements (AREA)

Abstract

本发明公开了一种用于偏光板撕除的装置及方法。该用于偏光板撕除的装置包括撕除平台(100)、夹持模块(400)、喷液模块(500)。所述撕除平台(100)用于固定玻璃面板(200)。所述夹持模块(400)用于夹持偏光板(300)的起撕角(302)。所述喷液模块(500)用于向偏光板(300)与玻璃面板(200)的接触界面喷射雾状液体以降低粘着力。本发明通过设置喷液模块,将液体(例如水)喷在有缺陷的偏光板上的粘胶(例如PSA胶)上,粘胶遇到该液体后粘性急剧下降,撕离速度提高。

Description

一种用于偏光板撕除的装置及方法 技术领域
本发明属于TFT-LCD(Thin-film-transistor liquid crystal display)行业,尤其涉及一种用于偏光板撕除的装置及方法。
背景技术
当在用于液晶显示器、平板电视等的玻璃面板表面贴附偏光板的过程中产生缺陷时,需要进行修复,将所贴附的偏光板撕除,而重新贴附偏光板。然而,由于偏光板尺寸大、贴附后的加温等,偏光板的粘着力大,撕离过程变得困难,容易造成偏光板的中间断裂和面板玻璃破损。
发明内容
本发明的目的在于,提供一种用于偏光板撕除的装置,其能够降低撕离过程中偏光板与面板玻璃之间的粘着力,提高撕离效率。
本发明通过如下技术方案实现:一种用于偏光板撕除的装置,其中,所述用于偏光板撕除的装置包括撕除平台、夹持模块、喷液模块,所述撕除平台用于固定玻璃面板,所述夹持模块用于夹持偏光板的起撕角,所述喷液模块用于向偏光板与玻璃面板的接触界面喷射雾状液体以降低粘着力。
作为上述技术方案的进一步改进,所述喷液模块与所述撕除平台同步水平移动。
作为上述技术方案的进一步改进,所述喷液模块喷出的液体为水。
作为上述技术方案的进一步改进,所述用于偏光板撕除的装置还包括保持模块,所述保持模块用于将起撕角保持在起撕后的状态。
作为上述技术方案的进一步改进,所述保持模块为风刀。
根据本发明的另一方面,提供了一种用于偏光板撕除的方法,所述用于偏光板撕除的方法包括以下步骤:
固定步骤,用于将玻璃面板固定在撕除平台上;
起撕步骤,用于将有缺陷的偏光板的撕除角撕起,并利用夹持模块夹持偏光 板的起撕角;
喷液步骤,用于利用喷液模块向偏光板与玻璃面板的接触界面喷射雾状液体以降低粘着力。
作为上述技术方案的进一步改进,在喷液步骤中,所述喷液模块与所述撕除平台同步水平移动。
作为上述技术方案的进一步改进,所述喷液模块喷出的液体为水。
作为上述技术方案的进一步改进,所述起撕步骤包括保持步骤,所述保持步骤用于利用保持模块将起撕角保持在起撕后的状态。
作为上述技术方案的进一步改进,所述保持模块为风刀。
本发明的有益效果是:本发明的用于偏光板撕除的装置包括喷液模块,所述喷液模块用于向偏光板与玻璃面板的接触界面喷射雾状液体以降低粘着力,通过设置喷液模块,将液体(例如水)喷在有缺陷的偏光板上的粘胶(例如PSA胶)上,粘胶遇到该液体后粘性急剧下降,撕离速度提高。
附图说明
图1是用于与根据本发明的一个具体实施例的用于偏光板撕除的装置进行比对的用于偏光板撕除的装置的正面示意图。
图2是根据本发明的一个具体实施例的用于偏光板撕除的装置的正面示意图。
图3是根据本发明的另一具体实施例的用于偏光板撕除的装置的正面示意图。
图4是根据本发明的一个具体实施例的用于偏光板撕除的方法的流程图。
图5是根据本发明的另一具体实施例的用于偏光板撕除的方法的起撕步骤的流程图。
具体实施方式
以下结合附图对本发明的具体实施方式进行进一步的说明。
如图1所示,其显示了用于与根据本发明的一个具体实施例的用于偏光板撕除的装置进行比对的用于偏光板撕除的装置。应注意,该用于偏光板撕除的装置可能不属于所谓的现有技术。该用于偏光板撕除的装置包括撕除平台10、夹持模块40,所述撕除平台10用于固定玻璃面板20,所述夹持模块40用于夹持偏光板30的起撕角32。在撕除有缺陷的偏光板时,首先将贴附有偏光板30的玻璃面板 20置放在撕除平台10上,通过驱动该撕除平台10,使其向夹持模块40的方向移动,至偏光板10上的起撕角32位于夹持模块40中。如图1所示,夹持模块40包括在撕除偏光板30的过程中用于夹持偏光板30的前撕除滚轮41和后撕除滚轮42。夹持模块40还可以进一步包括用于夹持起撕角32的自由端部,以便将偏光板30撕除的撕除夹抓。当起撕角32进入到夹持模块40中后,在撕除平台10继续沿相同的方向(水平方向X)移动的过程中,通过夹持模块40对偏光板30的夹持,及撕除平台10与夹持模块40的相对运动,将偏光板30撕除。至此,完成偏光板30撕除制程。
在将起撕角32固定在前撕除滚轮41和后撕除滚轮42之间之后,撕除平台10和夹持模块40两者之一水平移动,撕除平台10与夹持模块40发生相对运动,将偏光板30撕离。
以上的偏光板撕离和修复是通过机械外力撕离。在偏光板30通过粘胶(例如PSA胶)与玻璃面板20接触,粘胶的粘着力随着时间加长以及后续的存贮以及模组老化制程以及可能存在的信赖性制程,粘着力会发生突变,偏光板30的本身强度在小于粘着力时会发生断裂,导致后面撕离只能通过人工手动清除,费时费力。而且,玻璃面板20易发生断裂破损,造成经济损失。
如图2所示,其显示了本发明提出的用于偏光板撕除的装置的一个具体实施例。该用于偏光板撕除的装置包括撕除平台100、夹持模块400、喷液模块500。所述撕除平台100用于固定玻璃面板200。所述夹持模块400用于夹持偏光板300的起撕角302。所述喷液模块500用于向偏光板300与玻璃面板200的接触界面喷射雾状液体以降低粘胶的粘着力。本实施例中,粘胶为PSA胶(Pressure Sensitive Adhesive)。
本实施例的用于偏光板撕除的装置,在图1所示的用于偏光板撕除的装置的的基础上增加喷液模块。喷液模块500喷出的液体适于降低粘胶的粘着力。在具体应用中,喷液模块500可以为纯水喷淋机构,其喷出线状水流或喷出雾水。喷在偏光板上的PSA胶与玻璃面板表面接触边缘。PSA胶在遇水后粘性急剧降低,降低粘着力,使撕离速度提高。由此,可以避免表面残胶残留以及偏光板断裂,提高修复效率,节省人工以及材料成本。
在本发明的一些实施例中,所述喷液模块500与所述撕除平台100同步水平 移动。例如,在图2所示的实施例中,所述喷液模块500与所述撕除平台100同步沿水平方向X向左运动。夹持模块400固定不动,所述撕除平台100与夹持模块400之间发生相对的运动,由此,将偏光板300迅速顺畅撕离。当然,也可以是所述喷液模块500与夹持模块400同步水平移动,撕除平台100保持不动。
在图3所示的实施例中,所述用于偏光板撕除的装置还包括保持模块600。所述保持模块600用于将起撕角302保持在起撕后的状态。其中,所述保持模块600可以为风刀(air knife)。
喷液模块500喷出的液体(例如水流)为喷雾状线性,其喷涂位置在偏光板撕起后与玻璃面部的接触界面。而且,喷液模块500喷出的液体量以及压力均可以调节以适应具体的应用。
根据本发明的另一方面,还提供了一种用于偏光板撕除的方法。该用于偏光板撕除的方法采用以上所述的用于偏光板撕除的装置。
如图4所示,所述用于偏光板撕除的方法包括开始步骤S10、固定步骤S20、起撕步骤S30、喷液步骤S40、结束步骤S50。
其中,固定步骤S20用于将玻璃面板200固定在撕除平台100上。起撕步骤S30用于将有缺陷的偏光板300的撕除角撕起,并利用夹持模块400夹持偏光板300的起撕角302。喷液步骤S40用于利用喷液模块500向偏光板300与玻璃面板200的接触界面喷射雾状液体(例如雾状水)以降低粘胶的粘着力。在喷液步骤S40中,所述喷液模块500与所述撕除平台100可以同步水平移动。如图5所示,所述起撕步骤S30可以包括保持步骤S32。所述保持步骤S32用于利用保持模块600将起撕角302保持在起撕后的状态。其中,所述保持模块600可以为风刀,其对起撕角302施加风压。
以上具体实施方式对本发明进行了详细的说明,但这些并非构成对本发明的限制。本发明的保护范围并不以上述实施方式为限,但凡本领域普通技术人员根据本发明所揭示内容所作的等效修饰或变化,皆应纳入权利要求书中记载的保护范围内。

Claims (10)

  1. 一种用于偏光板撕除的装置,其中,所述用于偏光板撕除的装置包括撕除平台(100)、夹持模块(400)、喷液模块(500),所述撕除平台(100)用于固定玻璃面板(200),所述夹持模块(400)用于夹持偏光板(300)的起撕角(302),所述喷液模块(500)用于向偏光板(300)与玻璃面板(200)的接触界面喷射雾状液体以降低粘着力。
  2. 根据权利要求1所述的用于偏光板撕除的装置,其中,所述喷液模块(500)与所述撕除平台(100)同步水平移动。
  3. 根据权利要求1所述的用于偏光板撕除的装置,其中,所述喷液模块(500)喷出的液体为水。
  4. 根据权利要求1所述的用于偏光板撕除的装置,其中,所述用于偏光板撕除的装置还包括保持模块(600),所述保持模块(600)用于将起撕角(302)保持在起撕后的状态。
  5. 根据权利要求4所述的用于偏光板撕除的装置,其中,所述保持模块(600)为风刀。
  6. 一种用于偏光板撕除的方法,其中,所述用于偏光板撕除的方法包括以下步骤:
    固定步骤(S20),用于将玻璃面板(200)固定在撕除平台(100)上;
    起撕步骤(S30),用于将有缺陷的偏光板(300)的撕除角撕起,并利用夹持模块(400)夹持偏光板(300)的起撕角(302);
    喷液步骤(S40),用于利用喷液模块(500)向偏光板(300)与玻璃面板(200)的接触界面喷射雾状液体以降低粘着力。
  7. 根据权利要求6所述的用于偏光板撕除的方法,其中,在喷液步骤(S40)中,所述喷液模块(500)与所述撕除平台(100)同步水平移动。
  8. 根据权利要求6所述的用于偏光板撕除的方法,其中,所述喷液模块(500)喷出的液体为水。
  9. 根据权利要求6所述的用于偏光板撕除的方法,其中,所述起撕步骤(S30)包括保持步骤(S32),所述保持步骤(S32)用于利用保持模块(600)将起撕角 (302)保持在起撕后的状态。
  10. 根据权利要求9所述的用于偏光板撕除的方法,其中,所述保持模块(600)为风刀。
PCT/CN2015/071074 2014-01-21 2015-01-20 一种用于偏光板撕除的装置及方法 Ceased WO2015109987A1 (zh)

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