JP2004262576A - Polarizing plate carry-out device - Google Patents

Polarizing plate carry-out device Download PDF

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Publication number
JP2004262576A
JP2004262576A JP2003053095A JP2003053095A JP2004262576A JP 2004262576 A JP2004262576 A JP 2004262576A JP 2003053095 A JP2003053095 A JP 2003053095A JP 2003053095 A JP2003053095 A JP 2003053095A JP 2004262576 A JP2004262576 A JP 2004262576A
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Prior art keywords
polarizing plate
unloading
carry
roller
polarizing
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Japanese (ja)
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Shigeru Kimura
滋 木村
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YODOGAWA MEDEKKU KK
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YODOGAWA MEDEKKU KK
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Priority to JP2003053095A priority Critical patent/JP2004262576A/en
Priority to TW093104060A priority patent/TWI239315B/en
Priority to KR1020040012123A priority patent/KR20040077480A/en
Priority to CNB2004100330309A priority patent/CN1239948C/en
Publication of JP2004262576A publication Critical patent/JP2004262576A/en
Pending legal-status Critical Current

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    • 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
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G59/00—De-stacking of articles
    • B65G59/06—De-stacking from the bottom of the stack
    • B65G59/067—De-stacking from the bottom of the stack articles being separated substantially perpendicularly to the axis of the stack
    • 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
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2201/00—Indexing codes relating to handling devices, e.g. conveyors, characterised by the type of product or load being conveyed or handled
    • B65G2201/02—Articles
    • B65G2201/0214—Articles of special size, shape or weigh
    • B65G2201/022—Flat
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B65—CONVEYING; PACKING; STORING; HANDLING THIN OR FILAMENTARY MATERIAL
    • B65G—TRANSPORT OR STORAGE DEVICES, e.g. CONVEYORS FOR LOADING OR TIPPING, SHOP CONVEYOR SYSTEMS OR PNEUMATIC TUBE CONVEYORS
    • B65G2814/00—Indexing codes relating to loading or unloading articles or bulk materials
    • B65G2814/03—Loading or unloading means
    • B65G2814/0301—General arrangements
    • B65G2814/0308—Destacking devices

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  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • General Physics & Mathematics (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • Chemical & Material Sciences (AREA)
  • Optics & Photonics (AREA)
  • Manufacturing & Machinery (AREA)
  • Engineering & Computer Science (AREA)
  • Mathematical Physics (AREA)
  • Liquid Crystal (AREA)
  • Polarising Elements (AREA)
  • Sheets, Magazines, And Separation Thereof (AREA)
  • Container, Conveyance, Adherence, Positioning, Of Wafer (AREA)
  • Packaging Frangible Articles (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To provide a polarizing plate supply device whereby a polarizing plate can be surely carried out one by one and it is not necessary to stop a line for pasting a polarizing plate to a liquid crystal cell when supplying the polarizing plate. <P>SOLUTION: A slit shaped polarizing plate carry-out port 150 extending to a lateral direction (the direction crossing the polarizing plate carry-out direction) is provided between a front side of a bottom surface wall 111 and a lower end of a front wall 112 constituting a polarizing plate housing box. A carry-out roller 113 abutting with a lower surface side of the polarizing plate 300 positioned on a lowermost part and carrying out the polarizing plate 300 is provided in the polarizing plate carry-out port 150. <P>COPYRIGHT: (C)2004,JPO&NCIPI

Description

【０００１】
【発明の属する技術分野】
この発明は、偏光板搬出装置の構造の改良に関する。
【０００２】
【従来の技術】
液晶ディスプレイは、時計、パソコン、複写機等あらゆる産業機器に用いられている。特に、近年は携帯電話のような携帯端末装置において、この液晶ディスプレイは不可欠のものとなっている。
【０００３】
ここで、液晶ディスプレイの構造としては、液晶セルを挟みこむように偏光板が両側から張付けられている。たとえば、携帯電話に用いられる小型の液晶ディスプレイの製造における液晶セルへの偏光板貼付工程においては、偏光板の供給は、図３に示すように、偏光板３００をフレーム２１０内に複数枚積層状態にしてストックし、吸引バルブ等を備える搬送アーム２２０により、偏光板３００が１枚ずつ取出され、所定の場所に搬送される。
【０００４】
なお、以上本願に係る発明についての従来の技術を、出願人の知得した一般的技術情報に基づいて説明したが、出願人の記憶する範囲において、本願の出願前までに先行技術文献情報として開示すべき情報を出願人は有しておらず、かつ、本願に先行する出願人自身の特許出願等についても認識していない。
【０００５】
【発明が解決しようとする課題】
しかしながら、上記図３に示す構成においては、吸引バルブ等を備える搬送アームを設ける必要があるために、その装置コストが高いもになっている。また、偏光板３００はそれ自体の厚みが非常に薄く、また、液晶セルへの貼付けのための粘着層を覆う離型フィルムが設けられている関係から、単純に搬送アーム２２０により偏光板３００を持上げようとした場合、１枚だけでなく複数枚の偏光板３００が持ち上げられてしまう場合がある。
【０００６】
さらに、偏光板３００のフレーム２１０内への補充は、上側から補充する構成となっているが、搬送アーム２２０による偏光板３００の取出しもフレーム２１０の上側から行なっているため（上側補充上側搬出）、偏光板３００のフレーム２１０内への補充の際には、搬送アーム２２０を停止させなければならず、その間、液晶セルへの偏光板貼付ラインも停止させる必要がある。
【０００７】
したがって、この発明は上記課題を解決するためになされたものであり、偏光板の搬出を確実に１枚ずつ行なうことを可能とするとともに、偏光板の補充の際においても、液晶セルへの偏光板貼付ラインを停止させる必要のない構成を備える偏光板搬出装置を提供することにある。
【０００８】
【課題を解決するための手段】
上記課題を解決するため本発明に基づく偏光板搬出装置においては、積層収容された液晶ディスプレイ用の偏光板を１枚ずつ搬出するための偏光板搬出装置であって、偏光板を積層した状態で収容し、偏光板の搬出方向の前側面と少なくとも横側面の一方とを支持する偏光板収容領域と、偏光板収容領域の下端部に設けられた偏光板搬出口とを備える。
【０００９】
さらに、偏光板搬出口には、最下部に位置する偏光板の下面側に当接し、偏光板を搬出するための搬出ローラと、搬出ローラの偏光板搬出方向前側面に配置され、搬出ローラによって送り出される偏光板の上面側に接する当接部とが設けられる。
【００１０】
この構成からなる偏光板搬出装置によれば、偏光板搬出口が偏光板収容領域の下端部に設けられていることから、搬出ローラによって偏光板搬出口から偏光板を搬出させた状態のまま、偏光板収容領域の上側から偏光板を補充することが可能となる。その結果、偏光板の補充において、従来のように液晶セルへの偏光板貼付ラインを停止させる必要がなく、液晶セルへの偏光板貼付工程の効率化を図ることが可能となる。
【００１１】
また、搬出ローラの偏光板搬出方向前側面に偏光板の上面側に接する当接部を設けておくことにより、搬出ローラによって偏光板搬出口から偏光板を搬出させる際に、複数の偏光板が送り出された場合であっても、上側に位置する偏光板の前側端面は、当接部によって搬出が遮られることになり、確実に偏光板搬出口から偏光板を１枚搬出させることを可能としている。
【００１２】
さらに、従来のような吸引バルブ等を備える搬送アームを設ける必要がなくなるため、装置の簡略化・小型化を図ることが可能となる。
【００１３】
また、上記偏光板搬出装置において好ましくは、前記偏光板搬出口の前側には、搬送テーブルと、前記搬出ローラに巻き掛けられるとともに、前記搬送テーブル上において前記偏光板搬出方向に沿って移動可能に設けられる搬送接着テープとがさらに設けられる。
【００１４】
この構成により、搬出ローラによって送り出されてくる偏光板は、偏光板搬出口において、搬送接着テープに接着し、搬送テーブル上においてそのまま搬送接着テープの移動に伴い搬送されることを可能とする。その結果、容易に偏光板を、液晶セルへの偏光板貼付工程に効率良く導くことができる。また、移動に搬送接着テープを用いていることから、搬送接着テープから偏光板を剥がすことで、同時に偏光板に張付けられている離型フィルムを剥がすことができ、液晶セルへの偏光板貼付工程の効率化をさらに図ることが可能となる。
【００１５】
【発明の実施の形態】
以下、この発明に基づく実施の形態における偏光板搬出装置の構造について、図１を参照して説明する。なお、図１は、偏光板搬出装置１００の全体構造を示す斜視図であり、内部構造の理解を容易にするために一部破断した状態で図示している。
【００１６】
（偏光板搬出装置１００の構造）
この偏光板搬出装置１００は、図１に示すように、偏光板３００を複数枚積層した状態で収容し、また、偏光板３００の搬出方向（矢印Ａ方向）の前側面と少なくとも横側面の一方とを支持する偏光板収容領域としての偏光板収容ボックス１１０を有している。また、この偏光板収容ボックス１１０の下端部には、偏光板収容ボックス１１０の前面において横方向に延びるように偏光板搬出口１５０が設けられている。
【００１７】
偏光板収容ボックス１１０内に偏光板３００が収容された状態においては、偏光板３００に上方側から荷重を付加するための重り１３０が、偏光板３００の上に載置されている。また、偏光板３００の後部側面および他方の横側面を支持するため、断面がＬ字形状の位置決めブロック１４０が設けられている。この位置決めブロック１４０は、偏光板収容ボックス１１０の底面壁１１１（図２参照）に対して着脱可能に設けられることにより、様々な大きさの偏光板３００の支持を可能としている。
【００１８】
偏光板収容ボックス１１０の前側には、搬送テーブル１２０が設けられ、この搬送テーブル１２０上には、搬出方向（矢印Ｂ方向）に移動する搬送接着テープ２００が配設され、偏光板搬出口１５０から搬出された偏光板３００は、この搬送接着テープ２００に接着された状態で、次工程である液晶セルへの偏光板貼付工程に導びかれることになる。
【００１９】
次に、図２を参照して、偏光板搬出口１５０の詳細構造について説明する。なお、図２（Ａ）は、偏光板搬出装置１００の偏光板搬出口１５０近傍の構造を示す部分断面図であり、図２（Ｂ）は、偏光板３００を図示しない状態での偏光板搬出口１５０近傍の部分拡大断面図である。
【００２０】
偏光板収容ボックス１１０を構成する底面壁１１１の前部側と前部壁１１２の下端部との間に、横方向（偏光板の搬送方向に対して交差する方法）に延びるスリット状の偏光板搬出口１５０が設けられている。この偏光板搬出口１５０には、最下部に位置する偏光板３００の下面側に当接し、この偏光板３００を搬出するための搬出ローラ１１３が設けられている。
【００２１】
この搬出ローラ１１３は、駆動装置（図示省略）により、図中矢印の方向に回転するように駆動されている。
【００２２】
また、この搬出ローラ１１３の偏光板搬出方向前側には、搬出ローラ１１３によって送り出される偏光板３００の上面側に接する当接部１１４が設けられている。本実施の形態においては、前部壁１１２の下端部に当接部１１４が設けられている。
【００２３】
搬出ローラ１１３と当接部１１４との隙間Ｓは、偏光板３００の厚みに対応して、１枚の偏光板３００のみが通過可能な寸法に設定されている。なお、当接部１１４は、搬出ローラ１１３とは異なり回転しない構造が採用されている。これは、当接部１１４を搬出ローラ１１３と同様に回転する構造とすると、複数枚の偏光板３００が搬出される可能性が高くなるからである。
【００２４】
また、搬出ローラ１１３には、偏光板３００が当接する面側に接着領域が設けられた搬送接着テープ２００が巻き掛けられており、搬出ローラ１１３の回転に従って、搬送テーブル１１０上を移動可能としている。
【００２５】
なお、底面壁１１１は、偏光板３００の搬出の容易化、および、偏光板３００の偏光板収容ボックス１１０内での位置決めの容易化の観点から、前側に向かって傾斜するように設けられている。
【００２６】
上記構成からなる偏光板搬出装置１００における偏光板３００の搬出動作は、搬出ローラ１１３が回転することにより、搬送接着テープ２００が偏光板３００に貼り付くとともに、搬送テーブル１１０に送り出されることにより、偏光板３００も搬送接着テープ２００とともに搬送テーブル１１０上に搬出されることになる。なお、搬送接着テープ２００が設けられていない場合であっても、搬出ローラ１１３の回転動作により、偏光板３００は搬出される。
【００２７】
ここで、偏光板３００が複数枚搬出されそうになった場合には、当接部１１４により上側に位置する偏光板３００の搬出が遮られることにより、確実に偏光板搬出口１５０から偏光板３００を１枚のみ搬出させることを可能とする。
【００２８】
（作用・効果）
以上、本実施の形態における偏光板搬出装置によれば、偏光板搬出口１５０が偏光板収容ボックス１１０の下端部に設けられていることから、搬出ローラ１１３によって偏光板搬出口１５０から偏光板３００を搬出させた状態のまま、偏光板収容ボックス１１０の上側から偏光板３００を補充することが可能となる。
【００２９】
その結果、偏光板３００の補充において、従来のように液晶セルへの偏光板貼付ラインを停止させる必要がなく、液晶セルへの偏光板貼付工程の効率化を図ることができる。
【００３０】
また、搬出ローラ１１３の偏光板搬出方向前側に偏光板３００の上面側に接する当接部１１４を設けておくことにより、搬出ローラ１１３によって偏光板搬出口１５０から偏光板３００を搬出させる際に、複数の偏光板３００が送り出された場合であっても、上側に位置する偏光板３００の前側端面は、当接部１１４によって搬出が遮られることになり、確実に偏光板搬出口１５０から偏光板３００を１枚のみ搬出させることができる。
【００３１】
また、搬出ローラ１１３によって送り出されてくる偏光板３００は、偏光板搬出口１５０において、搬送接着テープ２００に接着し、搬送テーブル１２０上においてそのまま搬送接着テープ２００の移動に伴い搬送されることから、容易に偏光板３００を、液晶セルへの偏光板貼付工程に効率良く導くことができる。
【００３２】
また、移動に搬送接着テープ２００を用いていることから、搬送接着テープ２００から偏光板３００を剥がすことのみで、同時に偏光板３００に張付けられている離型フィルム（図示省略）を剥がすことができ、液晶セルへの偏光板貼付工程の効率化をさらに図ることが可能となる。
【００３３】
なお、今回開示された上記実施の形態はすべての点で例示である。したがって、本発明の技術的範囲は、上記した説明ではなく特許請求の範囲によって画定され、特許請求の範囲と均等の意味および範囲内でのすべての変更が含まれることが意図される。
【００３４】
【発明の効果】
以上、本実施の形態における偏光板搬出装置によれば、従来のような吸引バルブ等を備える搬送アームを設ける必要がなくなるため、装置の簡略化・小型化を図ることが可能となる。
【図面の簡単な説明】
【図１】本実施の形態における偏光板搬出装置の全体構造を示す斜視図である。
【図２】（Ａ）は、偏光板搬出装置の偏光板搬出口近傍の構造を示す部分断面図であり、（Ｂ）は、偏光板を図示しない状態での偏光板搬出口近傍の部分拡大断面図である。
【図３】従来の技術における偏光板搬出装置の構造を示す模式図である。
【符号の説明】
１００ 偏光板搬出装置、１１０ 偏光板収容ボックス、１１１ 底面壁、１１３ 搬出ローラ、１１４ 当接部、１２０ 搬送テーブル、１３０ 重り、１４０ ブロック、１５０ 偏光板搬出口、２００ 搬送接着テープ、３００ 偏光板。[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to an improvement in the structure of a polarizing plate carrying-out device.
[0002]
[Prior art]
Liquid crystal displays are used in various industrial devices such as watches, personal computers, and copiers. In particular, in recent years, this liquid crystal display has become indispensable in portable terminal devices such as portable telephones.
[0003]
Here, as a structure of the liquid crystal display, polarizing plates are attached from both sides so as to sandwich the liquid crystal cell. For example, in the process of attaching a polarizing plate to a liquid crystal cell in the manufacture of a small liquid crystal display used for a mobile phone, the polarizing plate is supplied by laminating a plurality of polarizing plates 300 in a frame 210 as shown in FIG. The polarizing plate 300 is taken out one by one by a transfer arm 220 having a suction valve and the like, and transferred to a predetermined place.
[0004]
The prior art of the invention according to the present application has been described based on general technical information obtained by the applicant.However, as far as the applicant memorizes, as prior art document information before the filing of the present application, The applicant does not have the information to be disclosed, nor is he aware of the applicant's own patent applications prior to the present application.
[0005]
[Problems to be solved by the invention]
However, in the configuration shown in FIG. 3, since it is necessary to provide a transfer arm having a suction valve and the like, the cost of the apparatus is high. Further, since the polarizing plate 300 has a very small thickness itself and a release film covering an adhesive layer for attachment to a liquid crystal cell is provided, the polarizing plate 300 is simply moved by the transfer arm 220. When trying to lift, not only one but also a plurality of polarizing plates 300 may be lifted.
[0006]
Further, the refilling of the polarizing plate 300 into the frame 210 is configured to be replenished from the upper side, but since the polarizer 300 is also taken out from the upper side of the frame 210 by the transport arm 220 (upper side upper replenishment). When the polarizing plate 300 is refilled into the frame 210, the transfer arm 220 must be stopped, and during that time, the line for attaching the polarizing plate to the liquid crystal cell must also be stopped.
[0007]
Therefore, the present invention has been made to solve the above-described problems, and it is possible to reliably carry out the polarizing plates one by one, and also to carry out the polarization to the liquid crystal cell even when refilling the polarizing plates. An object of the present invention is to provide a polarizing plate unloading device having a configuration that does not require stopping the plate sticking line.
[0008]
[Means for Solving the Problems]
In order to solve the above problems, a polarizing plate unloading device according to the present invention is a polarizing plate unloading device for unloading stacked polarizing plates for a liquid crystal display one by one, in a state where the polarizing plates are stacked. A polarizing plate accommodating region for accommodating and supporting at least one of the front side surface and at least one of the lateral side surfaces in the direction in which the polarizing plate is carried out, and a polarizing plate carry-out port provided at a lower end of the polarizing plate accommodating region.
[0009]
Further, at the polarizing plate discharge port, a discharge roller for contacting the lower surface side of the polarizing plate located at the lowermost position and discharging the polarizing plate, and disposed on the front side of the polarizing plate discharge direction of the discharge roller, the discharge roller. And a contact portion that is in contact with the upper surface side of the polarizing plate that is sent out.
[0010]
According to the polarizing plate unloading device having this configuration, since the polarizing plate unloading port is provided at the lower end of the polarizing plate housing area, the unloading rollers allow the polarizing plate to be unloaded from the polarizing plate unloading port. It becomes possible to replenish the polarizing plate from above the polarizing plate housing area. As a result, it is not necessary to stop the line for attaching the polarizing plate to the liquid crystal cell as in the related art when refilling the polarizing plate, and the efficiency of the step of attaching the polarizing plate to the liquid crystal cell can be improved.
[0011]
In addition, by providing a contact portion in contact with the upper surface side of the polarizing plate on the front side of the polarizing plate unloading direction of the unloading roller, when the unloading roller unloads the polarizing plate from the polarizing plate unloading port, a plurality of polarizing plates are formed. Even in the case of being sent out, the front end face of the polarizing plate located on the upper side, the carrying out is blocked by the contact portion, and it is possible to reliably carry out one polarizing plate from the polarizing plate carrying out port. I have.
[0012]
Further, since there is no need to provide a transfer arm having a suction valve or the like as in the related art, the apparatus can be simplified and downsized.
[0013]
Further, in the polarizing plate unloading device, preferably, on the front side of the polarizing plate unloading port, while being wound around the transfer table and the unloading roller, it is movable on the transfer table along the polarizing plate unloading direction. The provided transport adhesive tape is further provided.
[0014]
With this configuration, the polarizing plate sent out by the unloading roller is bonded to the transport adhesive tape at the polarizing plate transport outlet, and can be transported as it is on the transport table as the transport adhesive tape moves. As a result, the polarizing plate can be easily and efficiently guided to the step of attaching the polarizing plate to the liquid crystal cell. In addition, since the transport adhesive tape is used for the movement, the release film adhered to the polarizer can be simultaneously peeled off by peeling off the polarizer from the transport adhesive tape. Efficiency can be further improved.
[0015]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, a structure of a polarizing plate unloading device according to an embodiment of the present invention will be described with reference to FIG. FIG. 1 is a perspective view showing the entire structure of the polarizing plate unloading device 100, which is partially broken to facilitate understanding of the internal structure.
[0016]
(Structure of the polarizing plate unloading device 100)
As shown in FIG. 1, the polarizing plate unloading device 100 accommodates a plurality of polarizing plates 300 in a stacked state, and also has at least one of a front surface and at least a lateral surface in the unloading direction (arrow A direction) of the polarizing plate 300. And a polarizing plate housing box 110 as a polarizing plate housing area for supporting the above. At the lower end of the polarizing plate housing box 110, a polarizing plate outlet 150 is provided so as to extend in the horizontal direction on the front surface of the polarizing plate housing box 110.
[0017]
When the polarizing plate 300 is housed in the polarizing plate housing box 110, a weight 130 for applying a load to the polarizing plate 300 from above is placed on the polarizing plate 300. Further, in order to support the rear side surface and the other side surface of the polarizing plate 300, a positioning block 140 having an L-shaped cross section is provided. The positioning block 140 is detachably provided on the bottom wall 111 (see FIG. 2) of the polarizing plate housing box 110, thereby supporting the polarizing plates 300 of various sizes.
[0018]
On the front side of the polarizing plate housing box 110, a transfer table 120 is provided. On the transfer table 120, a transfer adhesive tape 200 that moves in the unloading direction (the direction of arrow B) is provided. The carried-out polarizing plate 300 is guided to the next step of attaching the polarizing plate to the liquid crystal cell, in a state where the polarizing plate 300 is adhered to the transfer adhesive tape 200.
[0019]
Next, a detailed structure of the polarizing plate outlet 150 will be described with reference to FIG. FIG. 2A is a partial cross-sectional view showing the structure near the polarizing plate outlet 150 of the polarizing plate unloading device 100, and FIG. 2B is a sectional view of the polarizing plate 300 when the polarizing plate 300 is not shown. FIG. 4 is a partially enlarged cross-sectional view near an outlet 150.
[0020]
A slit-shaped polarizing plate extending in the lateral direction (a method intersecting the direction of transport of the polarizing plate) between the front side of the bottom wall 111 and the lower end of the front wall 112 constituting the polarizing plate housing box 110 A carry-out port 150 is provided. At the polarizing plate outlet 150, there is provided an unloading roller 113 which comes into contact with the lower surface of the polarizing plate 300 located at the lowermost position and unloads the polarizing plate 300.
[0021]
The carry-out roller 113 is driven by a driving device (not shown) so as to rotate in the direction of the arrow in the figure.
[0022]
Further, a contact portion 114 is provided on the front side of the discharge roller 113 in the polarizing plate discharge direction in contact with the upper surface side of the polarizing plate 300 sent out by the discharge roller 113. In the present embodiment, a contact portion 114 is provided at the lower end of the front wall 112.
[0023]
The gap S between the unloading roller 113 and the contact portion 114 is set to a size that allows only one polarizing plate 300 to pass, corresponding to the thickness of the polarizing plate 300. Note that the contact portion 114 has a structure that does not rotate unlike the unloading roller 113. This is because if the contact portion 114 is configured to rotate in the same manner as the carry-out roller 113, the possibility that a plurality of polarizing plates 300 are carried out increases.
[0024]
A transport adhesive tape 200 provided with an adhesive area on the side where the polarizing plate 300 abuts is wound around the output roller 113, and can be moved on the transport table 110 according to the rotation of the output roller 113. .
[0025]
In addition, the bottom wall 111 is provided so as to be inclined toward the front side from the viewpoint of facilitating the carrying out of the polarizing plate 300 and facilitating the positioning of the polarizing plate 300 in the polarizing plate housing box 110. .
[0026]
The unloading operation of the polarizing plate 300 in the polarizing plate unloading apparatus 100 having the above-described configuration is performed by rotating the unloading roller 113 so that the transfer adhesive tape 200 is stuck to the polarizing plate 300 and is sent out to the transfer table 110, so that the polarization is performed. The plate 300 is also carried out onto the carrying table 110 together with the carrying adhesive tape 200. Note that even when the transport adhesive tape 200 is not provided, the polarizing plate 300 is unloaded by the rotation of the unloading roller 113.
[0027]
Here, when a plurality of polarizing plates 300 are about to be unloaded, the contact of the polarizing plate 300 located above is blocked by the abutting portion 114, so that the polarizing plates 300 can be reliably discharged from the polarizing plate unloading port 150. Can be carried out only one sheet.
[0028]
(Action / Effect)
As described above, according to the polarizing plate unloading device of the present embodiment, since the polarizing plate unloading port 150 is provided at the lower end of the polarizing plate housing box 110, the unloading roller 113 causes the polarizing plate 300 to pass through the polarizing plate unloading port 150. Can be replenished with the polarizing plate 300 from above the polarizing plate housing box 110 in a state in which is carried out.
[0029]
As a result, it is not necessary to stop the line for attaching the polarizing plate to the liquid crystal cell as in the related art when refilling the polarizing plate 300, and the efficiency of the process of attaching the polarizing plate to the liquid crystal cell can be improved.
[0030]
In addition, by providing the contact portion 114 in contact with the upper surface side of the polarizing plate 300 on the front side of the polarizing plate unloading direction of the unloading roller 113, when the polarizing plate 300 is unloaded from the polarizing plate unloading port 150 by the unloading roller 113, Even when a plurality of polarizing plates 300 are sent out, the front end surface of the polarizing plate 300 located on the upper side is blocked from being carried out by the abutting portion 114, so that the polarizing plate is surely output from the polarizing plate outlet 150. Only one 300 can be carried out.
[0031]
Further, the polarizing plate 300 sent out by the unloading roller 113 is adhered to the transport adhesive tape 200 at the polarizing plate outlet 150 and is transported as it is on the transport table 120 as the transport adhesive tape 200 moves. The polarizing plate 300 can be easily and efficiently guided to the step of attaching the polarizing plate to the liquid crystal cell.
[0032]
In addition, since the transport adhesive tape 200 is used for the movement, the release film (not shown) attached to the polarizer 300 can be simultaneously removed only by peeling the polarizing plate 300 from the transport adhesive tape 200. This makes it possible to further improve the efficiency of the step of attaching the polarizing plate to the liquid crystal cell.
[0033]
The above-described embodiment disclosed this time is an example in all respects. Therefore, the technical scope of the present invention is defined by the terms of the claims, rather than the description above, and is intended to include any modifications within the scope and meaning equivalent to the terms of the claims.
[0034]
【The invention's effect】
As described above, according to the polarizing plate unloading device according to the present embodiment, it is not necessary to provide a transfer arm including a suction valve or the like as in the related art, so that the device can be simplified and downsized.
[Brief description of the drawings]
FIG. 1 is a perspective view showing the entire structure of a polarizing plate carrying-out device in the present embodiment.
FIG. 2A is a partial cross-sectional view showing a structure near a polarizing plate outlet of a polarizing plate unloading device, and FIG. 2B is a partially enlarged view near a polarizing plate outlet when a polarizing plate is not shown. It is sectional drawing.
FIG. 3 is a schematic view showing a structure of a polarizing plate unloading device according to a conventional technique.
[Explanation of symbols]
REFERENCE SIGNS LIST 100 polarizing plate discharge device, 110 polarizing plate storage box, 111 bottom wall, 113 discharge roller, 114 contact portion, 120 transfer table, 130 weight, 140 block, 150 polarizing plate discharge port, 200 transfer adhesive tape, 300 polarizing plate

Claims (2)

積層収容された液晶ディスプレイ用の偏光板を１枚ずつ搬出するための偏光板搬出装置であって、
偏光板を積層した状態で収容し、前記偏光板の搬出方向の前側面と少なくとも横側面の一方とを支持する偏光板収容領域と、
前記偏光板収容領域の下端部に設けられた偏光板搬出口と、
を備え、
前記偏光板搬出口には、
最下部に位置する前記偏光板の下面側に当接し、前記偏光板を搬出するための搬出ローラと、
前記搬出ローラの前記偏光板搬出方向前側面に配置され、前記搬出ローラによって送り出される前記偏光板の上面側に接する当接部と、
が設けられる、偏光板搬出装置。A polarizing plate unloading device for unloading a polarizing plate for a liquid crystal display housed in a stack one by one,
A polarizing plate housing area that houses the polarizing plates in a stacked state and supports the front surface and at least one of the side surfaces in the unloading direction of the polarizing plate,
A polarizing plate carry-out port provided at a lower end portion of the polarizing plate housing area,
With
In the polarizing plate carry-out port,
An unloading roller for contacting the lower surface of the polarizing plate located at the lowermost position and unloading the polarizing plate,
A contact portion that is disposed on the front side of the polarizing plate carrying-out direction of the carrying-out roller and that contacts an upper surface side of the polarizing plate that is sent out by the carrying-out roller;
Is provided, a polarizing plate unloading device. 前記偏光板搬出口の前側面には、
搬送テーブルと、
前記搬出ローラに巻き掛けられるとともに、前記搬送テーブル上において前記偏光板搬出方向に沿って移動可能に設けられる搬送接着テープと、
がさらに設けられる、請求項１に記載の偏光板搬出装置。On the front side of the polarizing plate carry-out port,
A transport table,
A transport adhesive tape wound around the carry-out roller and provided movably along the polarizing plate carry-out direction on the carry table,
The polarizing plate carrying-out device according to claim 1, further comprising:
JP2003053095A 2003-02-28 2003-02-28 Polarizing plate carry-out device Pending JP2004262576A (en)

Priority Applications (4)

Application Number Priority Date Filing Date Title
JP2003053095A JP2004262576A (en) 2003-02-28 2003-02-28 Polarizing plate carry-out device
TW093104060A TWI239315B (en) 2003-02-28 2004-02-19 Device for moving polarizers out
KR1020040012123A KR20040077480A (en) 2003-02-28 2004-02-24 Polarizing plate carrying apparatus
CNB2004100330309A CN1239948C (en) 2003-02-28 2004-02-27 Polarizing plate outputting device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2003053095A JP2004262576A (en) 2003-02-28 2003-02-28 Polarizing plate carry-out device

Publications (1)

Publication Number Publication Date
JP2004262576A true JP2004262576A (en) 2004-09-24

Family

ID=33117808

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2003053095A Pending JP2004262576A (en) 2003-02-28 2003-02-28 Polarizing plate carry-out device

Country Status (4)

Country Link
JP (1) JP2004262576A (en)
KR (1) KR20040077480A (en)
CN (1) CN1239948C (en)
TW (1) TWI239315B (en)

Families Citing this family (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
KR100548960B1 (en) * 2005-02-05 2006-02-02 주식회사 에스에프에이 Apparatus for attaching polarizing plate to lcd panel
KR100548962B1 (en) * 2005-02-05 2006-02-02 주식회사 에스에프에이 Apparatus for supplying polarizing plate
CN100352608C (en) * 2005-11-03 2007-12-05 友达光电股份有限公司 Apparatus for removing polarized plate and its holding device

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KR20040077480A (en) 2004-09-04
TWI239315B (en) 2005-09-11
CN1239948C (en) 2006-02-01
TW200426092A (en) 2004-12-01
CN1527074A (en) 2004-09-08

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