JP2000111938A - Production of liquid crystal display device - Google Patents
Production of liquid crystal display deviceInfo
- Publication number
- JP2000111938A JP2000111938A JP11289790A JP28979099A JP2000111938A JP 2000111938 A JP2000111938 A JP 2000111938A JP 11289790 A JP11289790 A JP 11289790A JP 28979099 A JP28979099 A JP 28979099A JP 2000111938 A JP2000111938 A JP 2000111938A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- input terminal
- display device
- crystal display
- crystal panel
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Pending
Links
Landscapes
- Liquid Crystal (AREA)
Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、液晶表示装置の製
造方法に関し、特に液晶パネルの端子部と液晶駆動用の
回路との接続方法に関する。BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a method for manufacturing a liquid crystal display device, and more particularly to a method for connecting a terminal portion of a liquid crystal panel to a circuit for driving liquid crystal.
【0002】[0002]
【従来の技術】例えば図1に示すように一対の電極基板
1・1間に液晶層2を介在させた液晶パネルの電極基板
1と、液晶駆動用の制御回路基板3との各人力端子を相
互に導通接続する場合、薄い可撓性の合成樹脂シート上
に所定の接続配線を施してなるフレキシブルプリンティ
ッドサーキット等の可撓性接続部材4と制御回路基板3
とは例えば半田付け等で接続し、可撓性接続部材4と電
極基板1とは例えば導電異方性接着剤5(Anisot
ropic Couductive Film、以下A
CFという)等を用いて接続している。2. Description of the Related Art For example, as shown in FIG. 1, each human terminal of an electrode substrate 1 of a liquid crystal panel having a liquid crystal layer 2 interposed between a pair of electrode substrates 1 and a control circuit substrate 3 for driving a liquid crystal is connected. In the case of conducting connection with each other, a flexible connection member 4 such as a flexible printed circuit formed by providing predetermined connection wiring on a thin flexible synthetic resin sheet and a control circuit board 3
Is connected by, for example, soldering, and the flexible connection member 4 and the electrode substrate 1 are connected, for example, by a conductive anisotropic adhesive 5 (Anisot).
Aropic Coactive Film, A
(Referred to as CF).
【0003】上記の可撓性接続部材4と電極基板1とを
ACF5で接続する場合には、電極基板1の各人力端子
6表面を例えばアセトン等の有機溶剤で拭いた後、電極
基板1の各入力端子と可撓性接続部材4の各入力端子と
を向かい合わせて重ね合わせ、その間にACF5を介在
させて加熱圧着して接着固定している。When connecting the flexible connection member 4 and the electrode substrate 1 with the ACF 5, the surface of each human terminal 6 of the electrode substrate 1 is wiped with an organic solvent such as acetone, and then the surface of the electrode substrate 1 is removed. Each input terminal and each input terminal of the flexible connection member 4 are superimposed on each other, and are bonded and fixed by heating and pressing with an ACF 5 interposed therebetween.
【0004】[0004]
【発明が解決しようとする課題】しかしながら、前述の
従来技術では電極基板の各入出力端子表面の汚れ等が完
全に除去できず、ACFと前記電極基板の各入出力端子
との密着性が確保できず、信頼性が著しく低下するとい
う問題点を有していた。However, in the above-described prior art, dirt on the surface of each input / output terminal of the electrode substrate cannot be completely removed, and the adhesion between the ACF and each input / output terminal of the electrode substrate is ensured. However, there has been a problem that reliability cannot be significantly reduced.
【0005】又、電極基板の各入出力端子表面をアセト
ン等の有機溶剤を含ませた布等で拭いた場合、ガラス粉
等が布に付着し、入力端子がきれ不良となるという問題
点を有していた。Further, when the surface of each input / output terminal of the electrode substrate is wiped with a cloth or the like containing an organic solvent such as acetone, glass powder or the like adheres to the cloth, and the input terminals become broken and defective. Had.
【0006】そこで、本発明は上記問題点を解決するも
ので、その目的とするところは非接触で電極基板の入力
端子表面を処理し、ACFと入力端子の密着性を確保で
きる液晶表示装置の製造方法を提供することにある。Accordingly, the present invention solves the above-mentioned problems, and an object of the present invention is to provide a liquid crystal display device capable of treating the input terminal surface of an electrode substrate in a non-contact manner and ensuring the close contact between the ACF and the input terminal. It is to provide a manufacturing method.
【0007】[0007]
【課題を解決するための手段】本発明の液晶表示装置の
製造方法は、透明電極を上下対向させて形成したガラス
セルに液晶組成物を封入した液晶パネルの入力端子と、
液晶駆動用回路基板の出力端子を相互に導通接続してな
る液晶表示装置の製造方法において、前記液晶パネルの
電極基板の入力端子表面にプラズマによる表面処理を施
した後に、前記液晶駆動用の回路基板の出力端子を接続
することを特徴とする。According to the present invention, there is provided a method of manufacturing a liquid crystal display device, comprising: an input terminal of a liquid crystal panel in which a liquid crystal composition is sealed in a glass cell formed by vertically opposing transparent electrodes;
In a method of manufacturing a liquid crystal display device in which output terminals of a liquid crystal driving circuit board are electrically connected to each other, the surface of the input terminal of the electrode substrate of the liquid crystal panel is subjected to surface treatment with plasma, and then the liquid crystal driving circuit is formed. The output terminal of the substrate is connected.
【0008】[0008]
【0009】[0009]
【実施例】実施例1 図1に一般的な液晶表示装置の構造を示す。一対の電極
基板1・1間に液晶層2を介在させた液晶パネルの電極
基板1の各人力端子6表面にArプラズマ処理を施し
た。プラズマ処理装置は東京応化製プラズマアッシャー
を用いた。処理条件は真空度1.5Torr,Ar流量
50sccm、出力500W、処理時間10分で行なっ
た。かかる液晶パネルを用いて、前記液晶パネルの各入
力端子と可撓性接続部材4とをACF5で接続した。か
かる液晶表示装置を温度サイクル試験した結果、ACF
と電極基板の入力端子がはがれる事は無かった。又、入
力端子表面に対し非接触であるため、入力端子がきれる
ことは全く無い信頼性の高い液晶表示装置が得られた。Embodiment 1 FIG. 1 shows the structure of a general liquid crystal display device. An Ar plasma treatment was performed on the surface of each human input terminal 6 of the electrode substrate 1 of the liquid crystal panel in which the liquid crystal layer 2 was interposed between the pair of electrode substrates 1.1. The plasma processing apparatus used was a plasma asher manufactured by Tokyo Ohka. Processing conditions were a vacuum of 1.5 Torr, an Ar flow rate of 50 sccm, an output of 500 W, and a processing time of 10 minutes. Using such a liquid crystal panel, each input terminal of the liquid crystal panel and the flexible connection member 4 were connected by the ACF 5. As a result of a temperature cycle test of such a liquid crystal display device, ACF
And the input terminal of the electrode substrate did not peel off. In addition, since the input terminal is not in contact with the surface of the input terminal, a highly reliable liquid crystal display device in which the input terminal is not broken at all is obtained.
【0010】実施例2 プラズマアッシャーヘの導入ガスをO2にした以外は実
施例1と同様に処理した液晶パネルを用いて実施例1と
同様に液晶表示装置を構成した。実施例1と同様に信頼
性の高い液晶表示装置が得られた。Example 2 A liquid crystal display device was constructed in the same manner as in Example 1 except that a liquid crystal panel treated in the same manner as in Example 1 was used except that the gas introduced into the plasma asher was changed to O 2 . As in Example 1, a highly reliable liquid crystal display device was obtained.
【0011】実施例3 処理条件を真空度1.0Torr,Ar流量100sc
cm、出力800W、処理時間10分にした以外は実施
例1と同様に処理し液晶表示装置を構成した。実施例1
と同様に信頼性の高い液晶表示装置が得られた。Example 3 The processing conditions were as follows: vacuum degree 1.0 Torr, Ar flow rate 100 sc
A liquid crystal display device was constructed by performing the same processing as in Example 1 except that the output power was set to 800 cm, the output power to 800 W, and the processing time to 10 minutes. Example 1
As a result, a highly reliable liquid crystal display device was obtained.
【0012】又、実施例では導電異方性接着剤ACFを
用いたが、ヒートシール等でも同様の結果が得られるこ
とは言うまでもない。Although the conductive anisotropic adhesive ACF is used in the embodiment, it goes without saying that the same result can be obtained by heat sealing or the like.
【0013】[0013]
【発明の効果】以上述べた様に、本発明によれば、液晶
パネルの各入力端子表面にプラズマ処理を施したことに
よって各入力端子表面の汚れ等を非接触で除去すること
が可能となり、液晶駆動用回路基板との導通接続の信頼
性が著しく向上する効果がある。As described above, according to the present invention, the surface of each input terminal of the liquid crystal panel is subjected to the plasma treatment, so that the surface of each input terminal can be removed without contact. This has the effect of significantly improving the reliability of the conductive connection with the liquid crystal drive circuit board.
【0014】又、各入力端子に接触することによって生
じる入力端子のきれ等の不良も全く皆無となり、液晶表
示装置の信頼性が向上する効果がある。Further, there is no defect such as breakage of the input terminal caused by contact with each input terminal, and there is an effect that the reliability of the liquid crystal display device is improved.
【図1】液晶表示装置の一般的な構造を示す模式図。FIG. 1 is a schematic view showing a general structure of a liquid crystal display device.
1…電極基板 2…液晶層 3…液晶駆動用制御回路基板 4…可撓性接触部材 5…ACF REFERENCE SIGNS LIST 1 electrode substrate 2 liquid crystal layer 3 liquid crystal drive control circuit board 4 flexible contact member 5 ACF
─────────────────────────────────────────────────────
────────────────────────────────────────────────── ───
【手続補正書】[Procedure amendment]
【提出日】平成11年10月21日(1999.10.
21)[Submission date] October 21, 1999 (1999.10.
21)
【手続補正1】[Procedure amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】特許請求の範囲[Correction target item name] Claims
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【特許請求の範囲】[Claims]
【手続補正2】[Procedure amendment 2]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】0007[Correction target item name] 0007
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【0007】[0007]
【課題を解決するための手段】本発明の液晶表示装置の
製造方法は、液晶層を介在させた一対の基板を有する液
晶パネルと、少なくとも一方の前記基板に設けられた入
力端子に導通接続される出力端子を有する駆動用回路
と、を有する液晶表示装置の製造方法であって、前記入
力端子表面をプラズマによって表面処理する工程と、前
記表面処理した後、前記入力端子と前記出力端子とを、
導電異方性接着剤によって導通接続する工程と、を有す
ることを特徴とする。According to a method of manufacturing a liquid crystal display device of the present invention, a liquid crystal panel having a pair of substrates having a liquid crystal layer interposed is connected to an input terminal provided on at least one of the substrates. A driving circuit having an output terminal, comprising: a step of surface-treating the input terminal surface with plasma; and after the surface treatment, the input terminal and the output terminal. ,
And conducting a conductive connection with a conductive anisotropic adhesive.
Claims (1)
セルに液晶組成物を封入した液晶パネルの入力端子と、
液晶駆動用の回路基板の出力端子を相互に導通接続して
成る液晶表示装置の製造方法において、前記液晶パネル
の入力端子の表面にプラズマによる表面処理を施した後
に、前記液晶駆動用の回路基板の出力端子を接続するこ
とを特徴とする液晶表示装置の製造方法。An input terminal of a liquid crystal panel in which a liquid crystal composition is sealed in a glass cell formed by vertically opposing transparent electrodes,
In a method of manufacturing a liquid crystal display device, in which output terminals of a liquid crystal driving circuit board are electrically connected to each other, the surface of an input terminal of the liquid crystal panel is subjected to surface treatment with plasma, and then the liquid crystal driving circuit board is processed. A method for manufacturing a liquid crystal display device, comprising connecting the output terminals of
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11289790A JP2000111938A (en) | 1999-10-12 | 1999-10-12 | Production of liquid crystal display device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP11289790A JP2000111938A (en) | 1999-10-12 | 1999-10-12 | Production of liquid crystal display device |
Related Parent Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP02023086A Division JP3142129B2 (en) | 1990-02-01 | 1990-02-01 | Manufacturing method of liquid crystal display device |
Publications (1)
Publication Number | Publication Date |
---|---|
JP2000111938A true JP2000111938A (en) | 2000-04-21 |
Family
ID=17747813
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP11289790A Pending JP2000111938A (en) | 1999-10-12 | 1999-10-12 | Production of liquid crystal display device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JP2000111938A (en) |
-
1999
- 1999-10-12 JP JP11289790A patent/JP2000111938A/en active Pending
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