JP2004325626A - Pressure-adhesion device and method - Google Patents

Pressure-adhesion device and method Download PDF

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Publication number
JP2004325626A
JP2004325626A JP2003118220A JP2003118220A JP2004325626A JP 2004325626 A JP2004325626 A JP 2004325626A JP 2003118220 A JP2003118220 A JP 2003118220A JP 2003118220 A JP2003118220 A JP 2003118220A JP 2004325626 A JP2004325626 A JP 2004325626A
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JP
Japan
Prior art keywords
liquid crystal
mounting table
terminal
terminal portion
polarizing plate
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Pending
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JP2003118220A
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Japanese (ja)
Inventor
Hiroshi Takahira
宏士 高比良
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.)
Hiroshima Opt Corp
Kyocera Display Corp
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Hiroshima Opt Corp
Kyocera Display Corp
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Priority to JP2003118220A priority Critical patent/JP2004325626A/en
Publication of JP2004325626A publication Critical patent/JP2004325626A/en
Pending legal-status Critical Current

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  • Liquid Crystal (AREA)
  • Manufacturing Of Electrical Connectors (AREA)
  • Connections Effected By Soldering, Adhesion, Or Permanent Deformation (AREA)

Abstract

<P>PROBLEM TO BE SOLVED: To easily and reliably connect the connection terminals of a liquid crystal display panel and the output terminals of an IC for driving a liquid crystal without receiving influence of the thickness of a polarizing plate and a rugged shape of a protective film to enhance the reliability of the connection. <P>SOLUTION: An aperture 10 having a flat surface area larger than that of the polarizing plate 9b is formed in the placing surface 7a of a second placing stand 7, the aperture 10 is formed in such a depth that the polarizing plate 9b is loosely engaged with the aperture 10 when a non-terminal part 6 is placed on the second placing stand 7 and the outer surface of a transparent substrate 8b is brought into contact with the placing surface 7a and suction part 12 sucking the transparent substrate 8b is formed in a position with which the outer surface of the transparent substrate 8b is brought into contact with the placing surface 7a. <P>COPYRIGHT: (C)2005,JPO&NCIPI

Description

【0001】
【発明の属する技術分野】
本発明は圧着装置および圧着方法に係り、特に、液晶表示パネルの各接続端子と液晶駆動用ICの各出力端子とを接続するために用いられる圧着装置および圧着方法に関する。
【0002】
【従来の技術】
従来から文字や図形などの各種の画像を表示する表示装置の一種として液晶表示装置が知られており、このような液晶表示装置の表示部として2枚の基板の間に液晶が密封された液晶表示パネルが用いられている。
【0003】
この液晶表示パネルは、互いに対向する2枚の透明基板を有しており、両透明基板の相互に対向する内面には、複数の透明電極が形成されている。これらの透明基板は、シール材によって所定の間隙を保持された状態で互いに貼り合わされており、前記間隙には、液晶が封入されている。また、前記両透明基板における前記各透明電極の形成位置に相当する外面には、それぞれ偏光板が設けられている。さらに、前記両透明基板のうち少なくとも一方の透明基板の寸法は、これに対向する他方の透明基板の寸法よりも平面形状が大きく形成されており、この大きく形成された部位には、前記各透明電極に連なる各接続端子を有する端子部が形成されている。
【0004】
また、前記各接続端子には、TCP(Tape Carrier Package)やベアチップ等の液晶駆動用回路の各出力端子が接続されるようになっている。
【0005】
前記各接続端子と前記各出力端子とを接続する従来の圧着装置について説明すると、この圧着装置は、液晶表示パネルの端子部を載置する第1載置台を有している。
【0006】
前記第1載置台の近傍には、前記液晶表示パネルの端子部以外の部位(以下、非端子部という。)を載置する第2載置台を有しており、この第2載置台の前記液晶表示パネルを載置する載置面は、全体が平面状に形成されている。
【0007】
前記第1載置台の載置面に対向する位置には、前記液晶表示パネルの各接続端子と前記液晶駆動用回路の各出力端子とを圧着する際に、液晶駆動用回路を液晶表示パネル側に押圧するための圧着バーが設けられている。
【0008】
そして、このような圧着装置を用いて液晶表示パネルの各接続端子と液晶駆動用回路の出力端子との圧着を行う場合、まず、第1載置台に液晶表示パネルの端子部を、第2載置台に非端子部を各接続端子が上面を向くように載置する。続いて前記各接続端子上に異方性導電材を貼り付ける。この状態で、前記端子部の上方に液晶駆動用回路を前記各接続端子と前記各出力端子との位置合わせをして載置する。そして、圧着バーを、端子部の上方から当接させ、加熱と加圧とにより前記異方性導電材を介して前記液晶表示パネルの各接続端子と液晶駆動用回路の各出力端子とを熱圧着して電気的に接続させている。
【0009】
ところで、前記液晶表示パネルの非端子部における外面には偏光板が設けられており、前記非端子部は第2載置台の載置面に偏光板を接触させて載置されるのに対し、前記液晶表示パネルの端子部は透明基板を第1載置台の載置面に接触させて載置される。
【0010】
ここで、前記第1載置台と前記第2載置台との載置面が同一平面上に位置すると、前記液晶表示パネルは、その端子部が前記偏光板の厚み分下方に傾いてしまう。この結果、前記液晶表示パネルにおける各接続端子の前記液晶駆動用ICにおける各出力端子との接続面は、前記第1載置台の載置面および圧着バーの圧着面に対して平行ではなくなってしまう。このような状態で各接続端子と各出力端子との圧着を行った場合、前記各接続端子と前記各出力端子との接続に傾きが生じ、その接続の信頼性が低いものとなるおそれがある。
【0011】
このため、前記第1載置台は、その載置面が前記偏光板の厚み分前記液晶表示パネル側に位置するように設けられており、これにより、前記液晶表示パネルの平行を図って各接続端子と各出力端子との圧着を行っていた。
【0012】
【発明が解決しようとする課題】
しかし、従来の圧着装置によれば、液晶表示パネルによって偏光板の厚みが異なる場合、前記液晶表示パネルの非表示部と第2載置台との平行を図ることができず、ひいては端子部と第1載置台および圧着バーとの平行を図ることができないおそれがある。一方、偏光板の厚みに合わせて液晶表示パネル毎に前記第1載置台の位置を設定すると、手間がかかってしまう。
【0013】
また、前記偏光板の外面に保護膜を設ける場合には、前記保護膜を前記偏光板に貼り付ける際に前記保護膜と前記偏光板との間に部分的に空気が介在し、前記保護膜の外面が凸凹形状になってしまうおそれがある。このような状態で前記第2載置台の載置面に前記保護膜を接触させて非表示部を載置しても、前記非表示部と前記第2載置台との平行を図ることができず、ひいては端子部と前記第1載置台および前記圧着バーとの平行を図ることができない。
【0014】
この結果、前記各接続端子と前記各出力端子との接続に傾きが生じ、その接続の信頼性が低いものとなるおそれがあった。
【0015】
本発明はこれらの点に鑑みてなされたものであり、偏光板の厚みや保護膜の凸凹形状に影響を受けず、液晶表示パネルの各接続端子と液晶駆動用回路の各出力端子とを容易かつ確実に接続し、その接続の信頼性を向上させることができる圧着装置および圧着方法を提供することを目的とするものである。
【0016】
【課題を解決するための手段】
前記目的を達成するため、本発明の請求項1に記載の圧着装置の特徴は、一対の透明基板を有し、前記各透明基板の相互に対向する内側に透明電極が設けられ、前記各透明基板の外側に偏光板が設けられている液晶表示パネルのうち、前記透明電極に連なる接続端子が形成された端子部と前記端子部以外の非端子部とが載置される載置台を有し、前記接続端子と液晶駆動用回路の端子との圧着を行う圧着装置において、前記載置台の前記非端子部が載置される載置面に、前記偏光板よりも平面積が大きい開口が形成され、前記開口は、前記非端子部を前記載置台に載置すると前記偏光板が前記開口に遊嵌され、前記透明基板の外面が前記載置面に接触する深さに形成されている点にある。
【0017】
また、請求項2に記載の圧着装置の特徴は、前記載置台が、前記端子部を載置する第1載置台と、前記非端子部を載置する第2載置台とからなる点にある。
【0018】
そして、このような構成を採用したことにより、載置台の載置面に透明基板の外面を接触させることができるので、前記偏光板の厚さ等に影響を受けず容易に前記透明基板と前記載置面との平行を図ることができる。ひいては、前記接続端子の前記端子との接続面を前記載置台の載置面および圧着バーの圧着面に対して容易かつ確実に平行にして、前記接続端子と液晶駆動用回路の端子との圧着を行うことができる。
【0019】
また、請求項3に記載の圧着装置の特徴は、前記載置面のうち前記非端子部における前記透明基板の外面が接触する位置に、前記透明基板を吸着する吸着部が形成されている点にある。
【0020】
本発明の圧着装置によれば、非端子部における透明基板が載置台の載置面に接触するように液晶表示パネルを前記載置台上に載置するので、前記透明基板を前記載置面に吸着させることができ、これにより、液晶表示パネルを前記載置台に安定して固定させることができる。
【0021】
さらに、請求項4に記載の圧着方法の特徴は、一対の透明基板を有し、前記各透明基板の相互に対向する内側に透明電極が設けられ、前記各透明基板の外側に偏光板が設けられている液晶表示パネルのうち、前記透明電極に連なる接続端子が形成された端子部と前記端子部以外の非端子部とを載置台に載置し、前記接続端子と液晶駆動用回路の端子との圧着を行う圧着方法において、前記載置台の前記非端子部が載置される載置面に、前記偏光板よりも平面積が大きい開口が形成されている圧着装置を用い、前記開口に前記偏光板を遊嵌し、前記透明基板を前記載置面に接触させて、前記液晶表示パネルを前記載置台に載置する点にある。
【0022】
本発明の圧着方法によれば、載置台の載置面に透明基板の外面を接触させることができるので、前記偏光板の厚さ等に影響を受けず容易に前記透明基板と前記載置面との平行を図ることができる。ひいては、前記接続端子の前記端子との接続面を前記載置台の載置面および圧着装置における圧着バーの圧着面に対して容易かつ確実に平行にして、前記接続端子と液晶駆動用ICの端子との圧着を行うことができる。
【0023】
【発明の実施の形態】
以下、本発明に係る圧着装置の実施形態を図1および図2を参照して説明する。
【0024】
図1および図2に示すように、本実施形態における圧着装置1は、液晶表示パネル2の端子部3を載置するための平面略長方形状の第1載置台4を有しており、この第1載置台4は、前記端子部3よりも平面積が大きく形成されている。また、本実施形態において、前記第1載置台4は、例えば石英ガラス等の透明材料から形成されている。
【0025】
また、前記第1載置台4の近傍には、前記液晶表示パネル2の非端子部6を載置するための平面略長方形状の第2載置台7が設けられている。前記第2載置台7は、前記非端子部6よりも平面積が大きく形成されており、その前記非端子部6を載置する載置面7aが前記第1載置台4の前記端子部3を載置する載置面4aと同一平面上となる位置に設けられている。
【0026】
前記第2載置台7の載置面7aには、前記液晶表示パネル2が有する両透明基板8a,8bの外面に設けられた偏光板9a,9bよりも平面積が大きい開口10が形成されており、この開口10の深さ寸法は、液晶表示パネル2に用いられる種々の偏光板9を考慮して、それらいずれの偏光板9の厚みよりも深く形成されている。また、前記開口10を前記第2載置台7の底面にまで到達するような貫通口とすることも可能である。
【0027】
従って、前記非端子部6を第2載置台7に載置すると、前記図2における下側の透明基板8bに設けられた偏光板9bの全体が前記開口10内に前記偏光板9bの外側面と前記開口10の内側面との間に多少の間隙が生じる程度に遊嵌され、前記透明基板8bの外面が前記第2載置台7の載置面7aに接触するようになっている。
【0028】
なお、前記開口10の深さ寸法は、偏光板9の厚みを基準として形成することに限らず、例えば、偏光板9の外面に保護膜(図示せず)が設けられる場合には、偏光板9および保護膜の厚みよりも深く形成される。すなわち、前記開口10の深さ寸法は、前記非端子部6を前記第2載置台7に載置して前記偏光板9を前記開口10に遊嵌させたとき、前記透明基板8bの外面が前記第2載置台7の載置面7aに接触する程度の深さに形成される。
【0029】
前記第2載置台7の載置面7aにおける前記開口10の対向する各辺(図2に示す左右両辺)近傍であって、前記非端子部6を前記第2載置台7に載置したときに前記透明基板8bの外面が接触する位置には、前記透明基板8bを前記載置面7aに吸着させるための2つの吸着部12が形成されている。
【0030】
前記各吸着部12は、図示しない吸引装置に接続されており、前記第2載置台7に前記非端子部6が載置された際、前記吸引装置は、前記各吸着部12から空気を吸引することによって前記透明基板8bを前記第2載置台7の載置面7aに吸着させて、前記液晶表示パネル2の載置位置を固定することができるようになっている。
【0031】
なお、前記各吸着部12は、前記非端子部6を前記第2載置台7に載置したときに前記下側の透明基板8bの外面が接触する位置であれば、設計コンセプトに応じて所望の位置に形成することができる。また、吸着部12の数も本実施形態のものに限定されない。
【0032】
すなわち、前記吸着部12を前記開口10の各4辺の近傍に形成するようにしてもよい。これにより、より確実に前記透明基板8bを前記第2載置台7に固定することが可能となる。
【0033】
また、前記第1載置台4の載置面4aに対向する位置には、前記液晶表示パネル2の図示しない各接続端子と液晶駆動用回路である液晶駆動用IC14の図示しない各出力端子とを異方性導電材(図示せず)を介して圧着する際に、液晶駆動用IC14を液晶表示パネル2側に押圧するための圧着バー16が設けられている。前記圧着バー16には、前記異方性導電材を加熱するための図示しないヒータが設けられている。
【0034】
次に、本発明に係る圧着方法について前記圧着装置1を用いて液晶表示パネル2の各接続端子と液晶駆動用IC14の各出力端子とを圧着する場合について説明する。
【0035】
前記圧着装置1を用いて液晶駆動用IC14の各出力端子を前記液晶表示パネル2の各接続端子に圧着する場合は、まず、液晶表示パネル2の端子部3を各接続端子が上面を向くように第1載置台4の載置面に、また非端子部6を偏光板9bの全体が第2載置台7の開口10に遊嵌させて前記第2載置台7の載置面7aに載置する。これにより、前記透明基板8bの外面を前記第1載置台4の載置面4aおよび第2載置台7の載置面7aに接触させることができる。
【0036】
次に、吸引装置を用いて各吸着部12から空気を吸引して、前記透明基板8bを前記第2載置台7の載置面7aに吸着させることにより、液晶表示パネル2の載置位置を固定する。
【0037】
さらに、前記各接続端子上に異方性導電材を自身の粘性を利用して貼り付けた後、液晶駆動用IC14を前記異方性導電材の上方に位置させて、各接続端子と各出力端子との位置合わせを行う。
【0038】
そして、ヒータによって圧着バー16を加熱し、前記圧着バー16によって液晶駆動用IC14を前記異方性導電材を介して端子部3に押圧させ、この状態で、異方性導電材に熱および圧力を加える。
【0039】
これにより、液晶表示パネル2の各接続端子と液晶駆動用IC14の各出力端子とが異方性導電材を介して導電可能に熱圧着される。
【0040】
従って、本実施形態によれば、偏光板9bを開口10に遊嵌させることにより、第1載置台4および第2載置台7の各載置面4a,7aに前記透明基板8bの外面を接触させることができるので、前記偏光板9bの厚さに影響を受けず容易に前記透明基板8bと前記各載置面4a,7aとの平行を図ることができる。ひいては、各接続端子と各出力端子との圧着工程において、前記各接続端子の各出力端子との接続面を前記第1載置台4の載置面4aおよび前記圧着バー16の圧着面16aに対して容易かつ確実に平行にすることができる。
【0041】
これにより、各接続端子と各出力端子とを確実に接続することができ、その接続の信頼性を向上させることができる。
【0042】
また、透明基板8bが第2載置台7の載置面7aに接触するように液晶表示パネル2の非端子部6を前記第2載置台7上に載置することができ、これにより前記透明基板8bを前記載置面7aに吸着させることができるので、安定して前記液晶表示パネル2を前記第1載置台4上および前記第2載置台7上に固定して、各接続端子と各出力端子とを確実に接続することができる。
【0043】
なお、本発明は前記実施形態に限定されるものではなく、必要に応じて種々変更することが可能である。
【0044】
例えば、液晶表示パネルを載置台に固定する手段として、開口面に吸着部を形成し、図2に示す液晶表示パネルと開口とからなる空間Bを負圧にして固定してもよい。
【0045】
【発明の効果】
以上述べたように、本発明に係る圧着装置によれば、液晶表示パネルの接続端子と液晶駆動用回路の端子との接続面を載置台の載置面および圧着バーの圧着面に対して容易かつ確実に平行にして、前記接続端子と前記端子との圧着を行うことができる。これにより、前記接続端子と前記端子とを確実に接続することができ、ひいてはその接続の信頼性を向上させることができる。
【0046】
また、透明基板が載置台の載置面に接触するように液晶表示パネルの非端子部を載置台上に載置することができ、これにより、前記透明基板を前記載置面に吸着させることができるので、安定して前記液晶表示パネルを前記載置台上および前記載置台上に固定して、各接続端子と各出力端子とを確実に接続することができる。
【0047】
さらに、本発明に係る圧着方法によれば、液晶表示パネルの接続端子の液晶駆動用回路の端子との接続面を載置台の載置面および圧着装置における圧着バーの圧着面に対して容易かつ確実に平行にして前記接続端子と前記端子との圧着を行うことができるので、前記接続端子と前記端子とを確実に接続することができ、ひいてはその接続の信頼性を向上させることができる。
【図面の簡単な説明】
【図1】本発明に係る圧着装置の一実施形態を示す模式的平面図
【図2】図1の圧着装置を示すA−Aにおける模式的断面図
【符号の説明】
1 圧着装置
2 液晶表示パネル
3 端子部
4 第1載置台
4a 載置面
6 非端子部
7 第2載置台
7a 載置面
8a,8b 透明基板
9b 偏光板
10 開口
12 吸着部
14 液晶駆動用IC
16 圧着バー
16a 圧着面
[0001]
TECHNICAL FIELD OF THE INVENTION
The present invention relates to a crimping apparatus and a crimping method, and more particularly to a crimping apparatus and a crimping method used to connect each connection terminal of a liquid crystal display panel and each output terminal of a liquid crystal driving IC.
[0002]
[Prior art]
2. Description of the Related Art A liquid crystal display device is conventionally known as a type of display device that displays various images such as characters and figures, and a liquid crystal display device in which a liquid crystal is sealed between two substrates is used as a display unit of such a liquid crystal display device. A display panel is used.
[0003]
This liquid crystal display panel has two transparent substrates facing each other, and a plurality of transparent electrodes are formed on the inner surfaces of the transparent substrates facing each other. These transparent substrates are adhered to each other while maintaining a predetermined gap by a sealant, and a liquid crystal is sealed in the gap. Polarizing plates are provided on outer surfaces of the two transparent substrates corresponding to the positions where the respective transparent electrodes are formed. Further, the dimension of at least one of the two transparent substrates is formed to have a larger planar shape than the dimension of the other transparent substrate opposed thereto. A terminal portion having each connection terminal connected to the electrode is formed.
[0004]
Also, each output terminal of a liquid crystal driving circuit such as a TCP (Tape Carrier Package) or a bare chip is connected to each of the connection terminals.
[0005]
A conventional crimping device for connecting each of the connection terminals and each of the output terminals will be described. The crimping device has a first mounting table on which a terminal portion of a liquid crystal display panel is mounted.
[0006]
In the vicinity of the first mounting table, there is provided a second mounting table on which a portion other than the terminal portion of the liquid crystal display panel (hereinafter, referred to as a non-terminal portion) is mounted. The mounting surface on which the liquid crystal display panel is mounted is entirely formed in a planar shape.
[0007]
When crimping each connection terminal of the liquid crystal display panel and each output terminal of the liquid crystal driving circuit at a position opposed to the mounting surface of the first mounting table, the liquid crystal driving circuit is connected to the liquid crystal display panel side. There is provided a crimping bar for pressing the pressure bar.
[0008]
When crimping each connection terminal of the liquid crystal display panel and the output terminal of the liquid crystal driving circuit using such a crimping device, first, the terminal portion of the liquid crystal display panel is mounted on the first mounting table, and then the second mounting is performed. The non-terminal portion is placed on the mounting table such that each connection terminal faces upward. Subsequently, an anisotropic conductive material is attached on each of the connection terminals. In this state, a liquid crystal driving circuit is placed above the terminal section with the respective connection terminals and the respective output terminals aligned. Then, the crimping bar is brought into contact with the terminal portion from above, and the connection terminals of the liquid crystal display panel and the output terminals of the liquid crystal driving circuit are heated by the application of heat and pressure via the anisotropic conductive material. It is electrically connected by crimping.
[0009]
Meanwhile, a polarizing plate is provided on the outer surface of the non-terminal portion of the liquid crystal display panel, and the non-terminal portion is placed in contact with the polarizing plate on the mounting surface of the second mounting table. The terminal portion of the liquid crystal display panel is mounted with the transparent substrate in contact with the mounting surface of the first mounting table.
[0010]
Here, when the mounting surfaces of the first mounting table and the second mounting table are located on the same plane, the terminals of the liquid crystal display panel are inclined downward by the thickness of the polarizing plate. As a result, the connection surface of each connection terminal of the liquid crystal display panel with each output terminal of the liquid crystal driving IC is not parallel to the mounting surface of the first mounting table and the crimping surface of the crimping bar. . When crimping of each connection terminal and each output terminal is performed in such a state, the connection between each connection terminal and each output terminal is inclined, and the reliability of the connection may be low. .
[0011]
For this reason, the first mounting table is provided such that the mounting surface is positioned on the liquid crystal display panel side by the thickness of the polarizing plate, whereby each connection is made in parallel with the liquid crystal display panel. The terminal and each output terminal were crimped.
[0012]
[Problems to be solved by the invention]
However, according to the conventional crimping device, when the thickness of the polarizing plate differs depending on the liquid crystal display panel, the non-display portion of the liquid crystal display panel and the second mounting table cannot be parallelized, and thus the terminal portion and the second mounting table cannot be parallelized. 1 There is a possibility that the mounting table and the crimping bar cannot be parallelized. On the other hand, if the position of the first mounting table is set for each liquid crystal display panel according to the thickness of the polarizing plate, it takes time and effort.
[0013]
When a protective film is provided on the outer surface of the polarizing plate, air is partially interposed between the protective film and the polarizing plate when the protective film is attached to the polarizing plate, and the protective film is May have an uneven surface. Even in this state, even when the non-display portion is placed by bringing the protective film into contact with the mounting surface of the second mounting table, the non-display portion and the second mounting table can be parallelized. Therefore, the terminal portion cannot be parallel to the first mounting table and the crimp bar.
[0014]
As a result, the connection between each of the connection terminals and each of the output terminals is inclined, and the reliability of the connection may be low.
[0015]
The present invention has been made in view of these points, and is not affected by the thickness of the polarizing plate or the unevenness of the protective film, and can easily connect each connection terminal of the liquid crystal display panel and each output terminal of the liquid crystal driving circuit. It is another object of the present invention to provide a crimping apparatus and a crimping method that can securely connect and improve the reliability of the connection.
[0016]
[Means for Solving the Problems]
In order to achieve the above object, a feature of the pressure bonding apparatus according to claim 1 of the present invention is that the pressure bonding apparatus has a pair of transparent substrates, and a transparent electrode is provided inside each of the transparent substrates facing each other, Among the liquid crystal display panel in which a polarizing plate is provided on the outside of the substrate, the liquid crystal display panel has a mounting table on which a terminal portion having a connection terminal connected to the transparent electrode and a non-terminal portion other than the terminal portion are mounted. In the crimping device for crimping the connection terminal and the terminal of the liquid crystal driving circuit, an opening having a plane area larger than that of the polarizing plate is formed on a mounting surface of the mounting table on which the non-terminal portion is mounted. Wherein the opening is formed to a depth at which the polarizing plate is loosely fitted in the opening when the non-terminal portion is placed on the mounting table, and the outer surface of the transparent substrate is in contact with the mounting surface. It is in.
[0017]
A feature of the crimping device according to claim 2 is that the mounting table includes a first mounting table on which the terminal section is mounted and a second mounting table on which the non-terminal section is mounted. .
[0018]
Then, by adopting such a configuration, the outer surface of the transparent substrate can be brought into contact with the mounting surface of the mounting table, so that the transparent substrate can be easily brought into contact with the transparent substrate without being affected by the thickness of the polarizing plate. It can be parallel to the writing surface. Furthermore, the connection surface of the connection terminal with the terminal is easily and surely parallel to the mounting surface of the mounting table and the crimp surface of the crimp bar, and the connection terminal and the terminal of the liquid crystal driving circuit are crimped. It can be performed.
[0019]
According to a third aspect of the present invention, there is provided a crimping device, wherein a suction portion for sucking the transparent substrate is formed at a position of the non-terminal portion of the placement surface where the outer surface of the transparent substrate contacts. It is in.
[0020]
According to the crimping device of the present invention, the liquid crystal display panel is mounted on the mounting table such that the transparent substrate in the non-terminal portion is in contact with the mounting surface of the mounting table. The liquid crystal display panel can be stably fixed to the mounting table as described above.
[0021]
Furthermore, a feature of the pressure bonding method according to claim 4 is that the pressure bonding method has a pair of transparent substrates, a transparent electrode is provided inside the transparent substrates facing each other, and a polarizing plate is provided outside the transparent substrates. Of the liquid crystal display panel, a terminal portion on which a connection terminal connected to the transparent electrode is formed and a non-terminal portion other than the terminal portion are mounted on a mounting table, and the connection terminal and a terminal of a liquid crystal driving circuit are mounted. In the crimping method of performing crimping with the above, using a crimping device in which an opening having a plane area larger than the polarizing plate is formed on the mounting surface on which the non-terminal portion of the mounting table is mounted, The present invention is characterized in that the polarizing plate is loosely fitted, the transparent substrate is brought into contact with the mounting surface, and the liquid crystal display panel is mounted on the mounting table.
[0022]
According to the pressure bonding method of the present invention, since the outer surface of the transparent substrate can be brought into contact with the mounting surface of the mounting table, the transparent substrate and the mounting surface can be easily affected by the thickness and the like of the polarizing plate. Can be parallelized. Furthermore, the connection surface of the connection terminal with the terminal is easily and surely parallel to the mounting surface of the mounting table and the crimping surface of the crimping bar in the crimping device, and the connection terminal and the terminal of the liquid crystal driving IC Pressure bonding can be performed.
[0023]
BEST MODE FOR CARRYING OUT THE INVENTION
Hereinafter, an embodiment of a crimping device according to the present invention will be described with reference to FIGS.
[0024]
As shown in FIGS. 1 and 2, the crimping device 1 according to the present embodiment has a first mounting table 4 having a substantially rectangular flat shape on which a terminal portion 3 of a liquid crystal display panel 2 is mounted. The first mounting table 4 is formed to have a larger plane area than the terminal portion 3. In the present embodiment, the first mounting table 4 is formed of a transparent material such as quartz glass.
[0025]
In the vicinity of the first mounting table 4, a second mounting table 7 having a substantially rectangular planar shape for mounting the non-terminal portion 6 of the liquid crystal display panel 2 is provided. The second mounting table 7 is formed to have a larger plane area than the non-terminal section 6, and the mounting surface 7 a on which the non-terminal section 6 is mounted is the terminal section 3 of the first mounting table 4. Is provided at a position on the same plane as the mounting surface 4a on which is mounted.
[0026]
An opening 10 having a larger area than the polarizers 9a and 9b provided on the outer surfaces of the transparent substrates 8a and 8b of the liquid crystal display panel 2 is formed on the mounting surface 7a of the second mounting table 7. In addition, the depth dimension of the opening 10 is formed larger than the thickness of any of the polarizing plates 9 in consideration of various polarizing plates 9 used in the liquid crystal display panel 2. In addition, the opening 10 may be a through hole that reaches the bottom surface of the second mounting table 7.
[0027]
Therefore, when the non-terminal portion 6 is mounted on the second mounting table 7, the entirety of the polarizing plate 9b provided on the lower transparent substrate 8b in FIG. The transparent substrate 8b is loosely fitted to the inner surface of the opening 10 so that a slight gap is generated between the transparent substrate 8b and the mounting surface 7a of the second mounting table 7.
[0028]
Note that the depth dimension of the opening 10 is not limited to being formed based on the thickness of the polarizing plate 9. For example, when a protective film (not shown) is provided on the outer surface of the polarizing plate 9, 9 and the protection film. That is, when the non-terminal portion 6 is mounted on the second mounting table 7 and the polarizing plate 9 is loosely fitted in the opening 10, the outer surface of the transparent substrate 8 b has a depth dimension of the opening 10. The second mounting table 7 is formed at such a depth that it comes into contact with the mounting surface 7a.
[0029]
When the non-terminal portion 6 is placed on the second mounting table 7 near the opposing sides (both left and right sides shown in FIG. 2) of the opening 10 on the mounting surface 7a of the second mounting table 7 Two adsorbing portions 12 for adsorbing the transparent substrate 8b to the mounting surface 7a are formed at positions where the outer surface of the transparent substrate 8b comes into contact with the mounting surface 7a.
[0030]
Each of the suction units 12 is connected to a suction device (not shown). When the non-terminal unit 6 is mounted on the second mounting table 7, the suction device sucks air from each of the suction units 12. By doing so, the transparent substrate 8b is attracted to the mounting surface 7a of the second mounting table 7 so that the mounting position of the liquid crystal display panel 2 can be fixed.
[0031]
In addition, each of the suction portions 12 may be a desired one according to the design concept as long as the outer surface of the lower transparent substrate 8b contacts the non-terminal portion 6 when the non-terminal portion 6 is mounted on the second mounting table 7. Can be formed. Further, the number of the suction portions 12 is not limited to that of the present embodiment.
[0032]
That is, the suction portion 12 may be formed near each of the four sides of the opening 10. This makes it possible to more reliably fix the transparent substrate 8b to the second mounting table 7.
[0033]
Further, at a position facing the mounting surface 4a of the first mounting table 4, each connection terminal (not shown) of the liquid crystal display panel 2 and each output terminal (not shown) of the liquid crystal driving IC 14 which is a liquid crystal driving circuit are provided. When pressure bonding is performed via an anisotropic conductive material (not shown), a pressure bonding bar 16 for pressing the liquid crystal driving IC 14 toward the liquid crystal display panel 2 is provided. The crimping bar 16 is provided with a heater (not shown) for heating the anisotropic conductive material.
[0034]
Next, a description will be given of a crimping method according to the present invention, in which the crimping device 1 is used to crimp each connection terminal of the liquid crystal display panel 2 and each output terminal of the liquid crystal drive IC 14.
[0035]
When crimping each output terminal of the liquid crystal driving IC 14 to each connection terminal of the liquid crystal display panel 2 using the crimping device 1, first, the terminal portion 3 of the liquid crystal display panel 2 is moved so that each connection terminal faces upward. Then, the entire surface of the polarizing plate 9b is loosely fitted into the opening 10 of the second mounting table 7 and the non-terminal portion 6 is loosely fitted on the mounting surface of the first mounting table 4 and mounted on the mounting surface 7a of the second mounting table 7. Place. Thereby, the outer surface of the transparent substrate 8b can be brought into contact with the mounting surface 4a of the first mounting table 4 and the mounting surface 7a of the second mounting table 7.
[0036]
Next, the suction position of the liquid crystal display panel 2 is set by sucking air from each of the suction portions 12 using a suction device to cause the transparent substrate 8b to be sucked on the mounting surface 7a of the second mounting table 7. Fix it.
[0037]
Further, after attaching an anisotropic conductive material on each of the connection terminals by utilizing its own viscosity, the liquid crystal driving IC 14 is positioned above the anisotropic conductive material so that each of the connection terminals and each output terminal are connected. Align with the terminal.
[0038]
Then, the crimping bar 16 is heated by the heater, and the liquid crystal driving IC 14 is pressed by the crimping bar 16 to the terminal portion 3 via the anisotropic conductive material. In this state, heat and pressure are applied to the anisotropic conductive material. Add.
[0039]
Thereby, each connection terminal of the liquid crystal display panel 2 and each output terminal of the liquid crystal drive IC 14 are thermocompression-bonded conductively via the anisotropic conductive material.
[0040]
Therefore, according to the present embodiment, the outer surface of the transparent substrate 8b is brought into contact with the mounting surfaces 4a, 7a of the first mounting table 4 and the second mounting table 7 by loosely fitting the polarizing plate 9b into the opening 10. Therefore, the transparent substrate 8b and each of the mounting surfaces 4a and 7a can be easily parallelized without being affected by the thickness of the polarizing plate 9b. Furthermore, in the step of crimping each connection terminal and each output terminal, the connection surface of each connection terminal with each output terminal is placed on the mounting surface 4a of the first mounting table 4 and the crimp surface 16a of the crimp bar 16. And can be easily and reliably made parallel.
[0041]
Thereby, each connection terminal and each output terminal can be reliably connected, and the reliability of the connection can be improved.
[0042]
Further, the non-terminal portion 6 of the liquid crystal display panel 2 can be mounted on the second mounting table 7 so that the transparent substrate 8b is in contact with the mounting surface 7a of the second mounting table 7. Since the substrate 8b can be attracted to the mounting surface 7a, the liquid crystal display panel 2 is stably fixed on the first mounting table 4 and the second mounting table 7, and each connection terminal and each connection terminal are fixed. An output terminal can be reliably connected.
[0043]
Note that the present invention is not limited to the above embodiment, and can be variously modified as needed.
[0044]
For example, as means for fixing the liquid crystal display panel to the mounting table, a suction portion may be formed on the opening surface, and the space B formed by the liquid crystal display panel and the opening shown in FIG.
[0045]
【The invention's effect】
As described above, according to the crimping device of the present invention, the connection surface between the connection terminal of the liquid crystal display panel and the terminal of the liquid crystal drive circuit can be easily formed on the mounting surface of the mounting table and the crimping surface of the compression bar. In addition, the connection terminals and the terminals can be securely crimped in parallel. Thus, the connection terminal and the terminal can be reliably connected, and the reliability of the connection can be improved.
[0046]
Further, the non-terminal portion of the liquid crystal display panel can be mounted on the mounting table so that the transparent substrate is in contact with the mounting surface of the mounting table, whereby the transparent substrate can be adsorbed to the mounting surface. Therefore, the liquid crystal display panel can be stably fixed on the mounting table and the mounting table, and each connection terminal and each output terminal can be reliably connected.
[0047]
Further, according to the crimping method according to the present invention, the connection surface of the connection terminal of the liquid crystal display panel with the terminal of the liquid crystal drive circuit can be easily and easily attached to the mounting surface of the mounting table and the crimping surface of the crimp bar in the crimping device. Since the crimping of the connection terminal and the terminal can be performed reliably in parallel, the connection terminal and the terminal can be reliably connected, and the reliability of the connection can be improved.
[Brief description of the drawings]
FIG. 1 is a schematic plan view showing an embodiment of a crimping device according to the present invention. FIG. 2 is a schematic cross-sectional view taken along line AA of the crimping device in FIG.
DESCRIPTION OF SYMBOLS 1 Crimping device 2 Liquid crystal display panel 3 Terminal part 4 First mounting table 4a Mounting surface 6 Non-terminal part 7 Second mounting table 7a Mounting surfaces 8a, 8b Transparent substrate 9b Polarizing plate 10 Opening 12 Suction unit 14 Liquid crystal driving IC
16 Crimp bar 16a Crimp surface

Claims (4)

一対の透明基板を有し、前記各透明基板の相互に対向する内側に透明電極が設けられ、前記各透明基板の外側に偏光板が設けられている液晶表示パネルのうち、前記透明電極に連なる接続端子が形成された端子部と前記端子部以外の非端子部とが載置される載置台を有し、前記接続端子と液晶駆動用回路の端子との圧着を行う圧着装置において、
前記載置台の前記非端子部が載置される載置面に、前記偏光板よりも平面積が大きい開口が形成され、
前記開口は、前記非端子部を前記載置台に載置すると前記偏光板が前記開口に遊嵌され、前記透明基板の外面が前記載置面に接触する深さに形成されていることを特徴とする圧着装置。
A liquid crystal display panel having a pair of transparent substrates, a transparent electrode is provided on the inside of each of the transparent substrates facing each other, and a polarizing plate is provided on the outside of each of the transparent substrates, and is connected to the transparent electrodes. In a crimping apparatus that has a mounting table on which a terminal portion on which a connection terminal is formed and a non-terminal portion other than the terminal portion is mounted, and performs crimping of the connection terminal and a terminal of a liquid crystal driving circuit,
An opening having a larger area than the polarizing plate is formed on a mounting surface on which the non-terminal portion of the mounting table is mounted,
The opening is formed such that when the non-terminal portion is placed on the mounting table, the polarizing plate is loosely fitted in the opening, and the outer surface of the transparent substrate is formed to a depth that makes contact with the mounting surface. Crimping device.
前記載置台が、前記端子部を載置する第1載置台と、前記非端子部を載置する第2載置台とからなる請求項1に記載の圧着装置。The crimping apparatus according to claim 1, wherein the mounting table includes a first mounting table on which the terminal portion is mounted and a second mounting table on which the non-terminal portion is mounted. 前記載置面のうち前記非端子部における前記透明基板の外面が接触する位置に、前記透明基板を吸着する吸着部が形成されている請求項1または2に記載の圧着装置。3. The pressure bonding apparatus according to claim 1, wherein an adsorbing portion that adsorbs the transparent substrate is formed at a position of the non-terminal portion where the outer surface of the transparent substrate contacts the mounting surface. 一対の透明基板を有し、前記各透明基板の相互に対向する内側に透明電極が設けられ、前記各透明基板の外側に偏光板が設けられている液晶表示パネルのうち、前記透明電極に連なる接続端子が形成された端子部と前記端子部以外の非端子部とを載置台に載置し、前記接続端子と液晶駆動用回路の端子との圧着を行う圧着方法において、
前記載置台の前記非端子部が載置される載置面に、前記偏光板よりも平面積が大きい開口が形成されている圧着装置を用い、前記開口に前記偏光板を遊嵌し、前記透明基板を前記載置面に接触させて、前記液晶表示パネルを前記載置台に載置することを特徴とする圧着方法。
A liquid crystal display panel having a pair of transparent substrates, a transparent electrode is provided on the inside of each of the transparent substrates facing each other, and a polarizing plate is provided on the outside of each of the transparent substrates, and is connected to the transparent electrodes. A crimping method of crimping the connection terminal and the terminal of the liquid crystal driving circuit by placing the terminal portion on which the connection terminal is formed and the non-terminal portion other than the terminal portion on a mounting table,
The mounting surface on which the non-terminal portion of the mounting table is mounted, using a crimping device in which an opening having a larger area than the polarizing plate is formed, loosely fits the polarizing plate into the opening, A pressure bonding method, wherein the liquid crystal display panel is mounted on the mounting table by bringing a transparent substrate into contact with the mounting surface.
JP2003118220A 2003-04-23 2003-04-23 Pressure-adhesion device and method Pending JP2004325626A (en)

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Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020166104A (en) * 2019-03-29 2020-10-08 シチズンファインデバイス株式会社 Image display panel cooling device

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2020166104A (en) * 2019-03-29 2020-10-08 シチズンファインデバイス株式会社 Image display panel cooling device
JP7137512B2 (en) 2019-03-29 2022-09-14 シチズンファインデバイス株式会社 Crimp joining device

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