JP3142129B2 - Manufacturing method of liquid crystal display device - Google Patents
Manufacturing method of liquid crystal display deviceInfo
- Publication number
- JP3142129B2 JP3142129B2 JP02023086A JP2308690A JP3142129B2 JP 3142129 B2 JP3142129 B2 JP 3142129B2 JP 02023086 A JP02023086 A JP 02023086A JP 2308690 A JP2308690 A JP 2308690A JP 3142129 B2 JP3142129 B2 JP 3142129B2
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- input terminal
- display device
- crystal display
- manufacturing
- 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.)
- Expired - Lifetime
Links
Classifications
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/22—Secondary treatment of printed circuits
-
- H—ELECTRICITY
- H05—ELECTRIC TECHNIQUES NOT OTHERWISE PROVIDED FOR
- H05K—PRINTED CIRCUITS; CASINGS OR CONSTRUCTIONAL DETAILS OF ELECTRIC APPARATUS; MANUFACTURE OF ASSEMBLAGES OF ELECTRICAL COMPONENTS
- H05K3/00—Apparatus or processes for manufacturing printed circuits
- H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
- H05K3/32—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits
- H05K3/321—Assembling printed circuits with electric components, e.g. with resistor electrically connecting electric components or wires to printed circuits by conductive adhesives
Landscapes
- Liquid Crystal (AREA)
Description
【発明の詳細な説明】 〔産業上の利用分野〕 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基板との接続方法に
関する。Description: 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 board for driving liquid crystal.
例えば第１図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との各入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
は例えば導通異方性接着剤５（Anisotropic Couductiv
e Film、以下ACFという）等を用いて接続している。For example, as shown in FIG. 1, each input 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 1 and a control circuit substrate 3 for driving a liquid crystal are electrically connected to each other. In this case, a flexible connection member 4 such as a flexible printed circuit having a predetermined connection wiring provided on a thin flexible synthetic resin sheet is connected to the control circuit board 3 by, for example, soldering. The conductive connecting member 4 and the electrode substrate 1 are connected, for example, to a conductive anisotropic adhesive 5 (Anisotropic Couductiv).
e Film (hereinafter, referred to as ACF).
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の各入力端子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 the flexible connection member 4 and the electrode substrate 1 are connected by the ACF 5, the surfaces of the input terminals 6 of the electrode substrate 1 are wiped with an organic solvent such as acetone, and then the input terminals of the electrode substrate 1 are connected. And the respective input terminals of the flexible connection member 4 are superimposed face to face, and ACF5 is interposed therebetween to heat-press and bond and fix.
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 conventional technology, dirt or the like 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 cannot be ensured. There was a problem that.
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。In addition, 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, causing a problem that the input terminal is broken and defective. Was.
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液晶パネルの入力端子表面
を処理し、入力端子と駆動回路の出力端子の導通接続の
信頼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。Therefore, the present invention solves the above-mentioned problems, and an object of the present invention is to treat the surface of an input terminal of a liquid crystal panel in a non-contact manner and to secure the reliability of a conductive connection between an input terminal and an output terminal of a drive circuit. An object of the present invention is to provide a method for manufacturing a liquid crystal display device.
本発明の液晶表示装置の製造方法は、液晶層を介在さ
せた一対の基板と少なくとも一方の前記基板に配置され
た入力端子とを有する液晶パネルと、前記入力端子に導
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
剤もしくはヒートシール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。A method for manufacturing a liquid crystal display device according to the present invention includes a liquid crystal panel having a pair of substrates having a liquid crystal layer interposed therebetween and an input terminal disposed on at least one of the substrates, and an output terminal electrically connected to the input terminal. A method of manufacturing a liquid crystal display device, comprising: a step of surface-treating the input terminal surface with plasma; and, after the surface treatment, electrically connecting the input terminal and the output terminal to each other. A step of conducting connection by an adhesive or a heat seal;
It is characterized by having.
実施例１ 第１図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の各入力端子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. Ar plasma treatment was applied to the surface of each 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. The 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 with the ACF5. As a result of a temperature cycle test of such a liquid crystal display device, the ACF and the input terminal of the electrode substrate did not peel off. Further, 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.
実施例２ プラズマアッシャーへの導入ガスを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 using a liquid crystal panel treated in the same manner as in Example 1 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.
実施例３ 処理条件を真空度1.0Torr,Ar流量100sccm、出力800
W、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 Processing conditions were as follows: vacuum degree 1.0 Torr, Ar flow rate 100 sccm, output 800
The processing was performed in the same manner as in Example 1 except that the processing time was changed to 10 minutes, and a liquid crystal display device was constructed. As in Example 1, a highly reliable liquid crystal display device was obtained.
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。Further, although the conductive anisotropic adhesive ACF was used in the examples, it goes without saying that the same result can be obtained by heat sealing or the like.
以上述べたように、本発明によれば、液晶パネルの入
力端子と、駆動用回路の出力端子を導通接続する前に、
液晶パネルの入力端子表面をプラズマ処理するので、入
力端子表面の汚れ等を除去することができる。これによ
って、入力端子と出力端子との導通接続の信頼性を著し
く向上させることができる。As described above, according to the present invention, before conductively connecting the input terminal of the liquid crystal panel and the output terminal of the driving circuit,
Since the surface of the input terminal of the liquid crystal panel is subjected to plasma processing, it is possible to remove dirt and the like on the surface of the input terminal. Thereby, the reliability of the conductive connection between the input terminal and the output terminal can be significantly improved.
さらに、入力端子表面は、布等の接触がなく処理され
るので、入力端子のきれ等の不良も防止することができ
る。Furthermore, since the surface of the input terminal is processed without contact with a cloth or the like, defects such as breakage of the input terminal can be prevented.
第１図は液晶表示装置の一般的な構造を示す模式図。 １……電極基板 ２……液晶層 ３……液晶駆動用制御回路基板 ４……可撓性接続部材 ５……ACF FIG. 1 is a schematic view showing a general structure of a liquid crystal display device. DESCRIPTION OF SYMBOLS 1 ... Electrode board 2 ... Liquid crystal layer 3 ... Control circuit board for liquid crystal drive 4 ... Flexible connection member 5 ... ACF
Claims (1)
も一方の前記基板に配置された入力端子とを有する液晶
パネルと、前記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
導電異方性接着剤もしくはヒートシールによって導通接
続する工程と、を有することを特徴とする液晶表示装置
の製造方法。A liquid crystal panel having a pair of substrates with a liquid crystal layer interposed therebetween and input terminals disposed on at least one of the substrates; a driving circuit having an output terminal electrically connected to the input terminals; A step of surface-treating the input terminal surface with plasma, and after the surface treatment, the input terminal and the output terminal are electrically conductive anisotropic adhesive or heat-sealed. And a step of conducting connection.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02023086A JP3142129B2 (en) | 1990-02-01 | 1990-02-01 | Manufacturing method of liquid crystal display device |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP02023086A JP3142129B2 (en) | 1990-02-01 | 1990-02-01 | Manufacturing method of liquid crystal display device |
Related Child Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP11289790A Division JP2000111938A (en) | 1999-10-12 | 1999-10-12 | Production of liquid crystal display device |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPH03228029A JPH03228029A (en) | 1991-10-09 |
| JP3142129B2 true JP3142129B2 (en) | 2001-03-07 |
Family
ID=12100618
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP02023086A Expired - Lifetime JP3142129B2 (en) | 1990-02-01 | 1990-02-01 | Manufacturing method of liquid crystal display device |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP3142129B2 (en) |
-
1990
- 1990-02-01 JP JP02023086A patent/JP3142129B2/en not_active Expired - Lifetime
Also Published As
| Publication number | Publication date |
|---|---|
| JPH03228029A (en) | 1991-10-09 |
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