JPH03228029A - Production of liquid crystal display device - Google Patents
Production of liquid crystal display deviceInfo
- Publication number
- JPH03228029A JPH03228029A JP2308690A JP2308690A JPH03228029A JP H03228029 A JPH03228029 A JP H03228029A JP 2308690 A JP2308690 A JP 2308690A JP 2308690 A JP2308690 A JP 2308690A JP H03228029 A JPH03228029 A JP H03228029A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- crystal panel
- display device
- input terminals
- crystal display
- 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.)
- Granted
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 47
- 238000004519 manufacturing process Methods 0.000 title claims description 7
- 238000000034 method Methods 0.000 claims description 4
- 238000004381 surface treatment Methods 0.000 claims description 3
- 239000011521 glass Substances 0.000 claims description 2
- 239000000203 mixture Substances 0.000 claims description 2
- 239000000758 substrate Substances 0.000 abstract description 15
- 238000009832 plasma treatment Methods 0.000 abstract description 4
- CSCPPACGZOOCGX-UHFFFAOYSA-N Acetone Chemical compound CC(C)=O CSCPPACGZOOCGX-UHFFFAOYSA-N 0.000 description 6
- 239000000853 adhesive Substances 0.000 description 3
- 230000001070 adhesive effect Effects 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 238000005516 engineering process Methods 0.000 description 2
- 239000004744 fabric Substances 0.000 description 2
- 239000003960 organic solvent Substances 0.000 description 2
- 239000003795 chemical substances by application Substances 0.000 description 1
- 230000003749 cleanliness Effects 0.000 description 1
- 230000001186 cumulative effect Effects 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010586 diagram Methods 0.000 description 1
- 239000000843 powder Substances 0.000 description 1
- 238000007789 sealing Methods 0.000 description 1
- 238000005476 soldering Methods 0.000 description 1
- 229920003002 synthetic resin Polymers 0.000 description 1
- 239000000057 synthetic resin Substances 0.000 description 1
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)
Abstract
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。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a method for manufacturing a liquid crystal display device, and more particularly to a method for connecting terminal portions of a liquid crystal panel and a circuit board for driving a 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ラドサーキッ
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
田付は等で接続し、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 （Ａｎｉｓｏｔｒｏｐｉｃ
Ｃｏｕｄｕｃｔｉｖｅ Ｆｉｌｍ、 以下ＡＣ
Ｆという）等を用いて接続している。For example, as shown in FIG. 1, the electrode substrate 1 of a liquid crystal panel with a liquid crystal layer 2 interposed between a pair of electrode substrates 1 and 1 and the input terminals of a control circuit board 3 for driving the liquid crystal are electrically connected to each other. In this case, the flexible connection member 4, such as a flexible printed circuit made of a thin flexible synthetic resin sheet with predetermined connection wiring, and the control circuit board 3 are connected, for example, by soldering, etc. The flexible connecting member 4 and the electrode substrate 1 are bonded using, for example, a conductive anisotropic adhesive 5 (Anisotropic adhesive).
Cumulative Film, hereinafter referred to as AC
F) etc. are used for connection.
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 connecting the flexible connecting member 4 and the electrode substrate 1 using the ACF 5, wipe the surface of each input terminal 6 of the electrode substrate 1 with an organic solvent such as acetone, and then wipe each input terminal of the electrode substrate 1 with an organic solvent such as acetone. The terminals and each input terminal of the flexible connecting member 4 are stacked facing each other, and the ACF 5 is interposed therebetween and bonded and fixed by heat and pressure.
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ａ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, with the above-mentioned conventional technology, dirt etc. cannot be completely removed from the surface of each input/output terminal of the electrode substrate, and the adhesion between the ACF and each input/output terminal of the electrode substrate cannot be maintained, resulting in a significant decrease in reliability. There was a problem with this.
又、電極基板の各入出力端子表面をアセトン等の有ｍ？
Ｂ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。Also, clean the surface of each input/output terminal of the electrode board with acetone or the like.
When wiping with a cloth or the like impregnated with Agent B, there was a problem in that glass powder and the like adhered to the cloth, resulting in poor cleanliness of the input terminals.
そこで、本発明は上記問題点を解決するもので。Therefore, the present invention is intended to solve the above problems.
その目的とするところは非接触で電極開板の入力端Ｔ−
衣表面処理し、ＡＣＦと入力端Ｔの密着１↑を確保でき
る液晶表示装置の製造方法を提（ｊｌＨすることにある
。The purpose is to contact the input end T- of the electrode open plate in a non-contact manner.
The purpose of the present invention is to provide a method for manufacturing a liquid crystal display device that can ensure close contact between the ACF and the input end T by surface treatment.
本発明の液晶表示装置の製造方法は、透明電罎を上下対
向させて形成したが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ｊ
′−を相ｑ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。In the method of manufacturing a liquid crystal display device of the present invention, transparent cables are formed by vertically facing each other, and the input terminal of a liquid crystal panel in which a liquid crystal composition is sealed in the last cell, and the output terminal of a liquid crystal driving circuit board.
In the method of manufacturing a liquid crystal display device in which the input terminal surface of the electrode substrate of the liquid crystal panel is subjected to a surface treatment using plasma, the output terminal of the liquid crystal driving circuit board is connected to the phase q in a conductive manner. It is characterized by connecting.
実施例１ 第１図に一般的な液晶表示装置の構造を示す。 Example 1 FIG. 1 shows the structure of a typical liquid crystal display device.
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ｆｉｌ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−を用いた。処理条件は真空度１． ５ Ｔ
ｏ ｒ ｒ、 Ａ ｒ流＠ ５０ ｓ ｃ ｃ ｍ
、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。Ar plasma treatment was performed on the surface of each input terminal 6 of the fil electrode substrate 1 of a liquid crystal panel in which a liquid crystal layer 2 was interposed between a pair of electrode substrates 1. The plasma processing device used was a plasma asher manufactured by Tokyo Ohka. The processing conditions are vacuum degree 1. 5 T
o r r, A r style @ 50 s c c m
, an output of 500 W, and a processing time of 10 minutes. Using this liquid crystal panel, each input terminal of the liquid crystal panel and the flexible connecting member 4 were connected by an ACF 5.
かかる液晶表示装置を温度サイクル試験した結果、ＡＣ
Ｆ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ｆｌＩら
れた。As a result of a temperature cycle test of such a liquid crystal display device, AC
The input terminals of F and the electrode board did not come off. or,
Since there is no contact with the surface of the input terminal, a highly reliable liquid crystal display device in which the input terminal is never disconnected has been created.
実施例２
プラズマアッシャ−への導入ガスを０２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 02. 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． ＯＴ ｏ ｒ ｒ、 Ａ
ｒ流量１０１００５ｅ、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しＮ液晶表
示装置が得られた。Example 3 Processing conditions were vacuum degree 1. OT o r r, A
A liquid crystal display device was constructed by processing in the same manner as in Example 1 except that the r flow rate was 101005e, the output was 800 W, and the processing time was 10 minutes. As in Example 1, a highly reliable N 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 similar results can be obtained by heat sealing or the like.
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, by performing plasma treatment on the surface of each input terminal of the liquid crystal panel, it is possible to remove dirt, etc. from the surface of each input terminal without contact.
This has the effect of significantly improving the reliability of conductive connection with the liquid crystal driving circuit board.
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６In addition, defects such as breakage of input terminals caused by contact with each input terminal are completely eliminated, which has the effect of improving the reliability of the liquid crystal display device6.
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 diagram showing the general structure of a liquid crystal display device. 1...electrode substrate 2...Liquid crystal layer 3...Control circuit board for liquid crystal drive 4...Flexible connection member 5...ACF
Claims (1)
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。In a method of manufacturing a liquid crystal display device, 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 and an output terminal of a circuit board for driving the liquid crystal are electrically connected to each other, A method for manufacturing a liquid crystal display device, characterized in that after subjecting the surface of the input terminal of the liquid crystal panel to surface treatment using plasma, the output terminal of the circuit board for driving the liquid crystal is connected.
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 true JPH03228029A (en) | 1991-10-09 |
| JP3142129B2 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 |
|---|---|
| JP3142129B2 (en) | 2001-03-07 |
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