JPH03150531A - Method for connecting liquid crystal display driving substrate - Google Patents

Method for connecting liquid crystal display driving substrate

Info

Publication number
JPH03150531A
JPH03150531A JP29033689A JP29033689A JPH03150531A JP H03150531 A JPH03150531 A JP H03150531A JP 29033689 A JP29033689 A JP 29033689A JP 29033689 A JP29033689 A JP 29033689A JP H03150531 A JPH03150531 A JP H03150531A
Authority
JP
Japan
Prior art keywords
lcd
lcd panel
liquid crystal
crystal display
conductive film
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
Application number
JP29033689A
Other languages
Japanese (ja)
Other versions
JP2522071B2 (en
Inventor
Norio Takahashi
鷹觜　紀雄
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.)
NEC Corp
Original Assignee
NEC Corp
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by NEC Corp filed Critical NEC Corp
Priority to JP1290336A priority Critical patent/JP2522071B2/en
Publication of JPH03150531A publication Critical patent/JPH03150531A/en
Application granted granted Critical
Publication of JP2522071B2 publication Critical patent/JP2522071B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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
    • H05K3/28—Applying non-metallic protective coatings
    • 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
    • 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
    • H05K3/36—Assembling printed circuits with other printed circuits
    • H05K3/361—Assembling flexible printed circuits with other printed circuits

Abstract

PURPOSE:To prevent moisture proof resin from entering the gap between an LCD panel terminal and a conductive pattern by providing an anisotropic conductive film with protrusion. CONSTITUTION:The LCD panel terminal 7 is led out to a liquid crystal display (LCD) panel 1 and the conductive pattern 6 is provided on an LCD driving substrate 2 corresponding to the LCD panel terminal 7. Then the anisotropic conductive film 4 is protruded from the LCD panel terminal 7 by l2 (0.2-0.5mm), the anisotropic conductive film 4 is protruded from the conductive pattern 6 by l1 (0.2-0.5mm), and they are put one over the other and heated and pressed from above the LCD driving substrate 2 to connect the LCD panel terminal 7 and conductor pattern 6 electrically. Then the part of the anisotropic conduc tive film 4 is coated with the moisture proof resin 3. Consequently, the moisture proof resin 3 is prevented from entering the gap between the LCD terminal 7 and conductive pattern 6, which are connected stably to eliminate a defect in contacting.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、液晶ディスプレイ（ＬＣＤ）駆動基板とＬＣ
Ｄパネル端子との接続方法に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a liquid crystal display (LCD) driving substrate and an LC
This relates to the connection method with the D panel terminal.

〔従来の技術〕[Conventional technology]

従来この種のＬＣＤ駆動基板とＬＣＤパネルの端子との
接続は、第３図（ａ）、　（ｂ）に示すように、合成樹
脂製のＬＣＤ駆動基板２上にＬＣＤパネル端子７に対応
するように導体パターン６を設け、導電パターン６とＬ
ＣＤパネル端子７との間に異方性導電フィルム４を介在
させて重ね合せＬＣＤ駆動基板２の上方から加熱押圧し
て、導電パターン６とＬＣＤパネル端子７とを接続し電
気的導電をとっていた。また異方性導電フィルム４に空
気中の湿気の吸収を防止するため防湿樹脂３を異方性導
電フィルム４部に塗布していた。Conventionally, the connection between this type of LCD drive board and the terminals of the LCD panel was as shown in FIGS. 3(a) and 3(b). A conductive pattern 6 is provided on the conductive pattern 6, and the conductive pattern 6 and L
The anisotropic conductive film 4 is interposed between the stacked LCD drive substrates 2 and the CD panel terminals 7, and heating and pressing is applied from above to connect the conductive patterns 6 and the LCD panel terminals 7 to ensure electrical conductivity. Ta. Further, in order to prevent the anisotropic conductive film 4 from absorbing moisture in the air, a moisture-proof resin 3 was applied to 4 parts of the anisotropic conductive film.

〔発明が解決しようとする課題〕[Problem to be solved by the invention]

上述した従来のＬＣＤ駆動基板の接続方法は、異方性導
電フィルム７が導電パターン６およびＬＣＤパネル端子
７より内側に設置され接続されるため、防湿樹脂３が、
導電パターン６とＬＣＤパネル端子７との間に入り込む
構造となっている。In the conventional LCD drive board connection method described above, since the anisotropic conductive film 7 is installed and connected inside the conductive pattern 6 and the LCD panel terminal 7, the moisture-proof resin 3
It has a structure that fits between the conductive pattern 6 and the LCD panel terminal 7.

そのため周囲温度の変化により、防湿樹脂３の熱膨張に
より、導、電パターン６とＬＣＤパネル端子７を引きは
なす応力が加わり、接触不良が発生するという欠点があ
った。Therefore, due to a change in ambient temperature, thermal expansion of the moisture-proof resin 3 applies stress that pulls the conductive pattern 6 and the LCD panel terminal 7 apart, resulting in poor contact.

〔課題を解決するための手段〕[Means to solve the problem]

上述した従来のＬＣＤ駆動基板の接続方法に対し、本発
明においては、異方性導電フィルム４をはみ出して設置
する構造により、防湿樹脂３がＬＣＤパネル端子７と導
電パターン６の間に入り込まない。In contrast to the conventional LCD drive board connection method described above, in the present invention, the moisture-proof resin 3 does not enter between the LCD panel terminal 7 and the conductive pattern 6 due to the structure in which the anisotropic conductive film 4 is installed so as to protrude.

すなわち、本発明は、ＬＣＤパネル端子７より、異方性
導電フィルム４を０．２　ｍｍ〜０．５　ｍｍはみ出し
、導電パターン６より異方性導電フィルム４を０．２ｍ
ｍ〜０．５　ｍｍはみ出して、設置する構造を有してお
り、防湿樹脂３がＬＣＤパネル端子７と導電パターン６
の間に入り込まない特徴を有している。That is, in the present invention, the anisotropic conductive film 4 protrudes from the LCD panel terminal 7 by 0.2 mm to 0.5 mm, and the anisotropic conductive film 4 protrudes from the conductive pattern 6 by 0.2 m.
It has a structure in which the moisture-proof resin 3 is installed with a protrusion of 0.5 mm to 0.5 mm, and the moisture-proof resin 3 is connected to the LCD panel terminal 7 and the conductive pattern 6.
It has the characteristic that it does not get caught between the two.

〔実施例〕〔Example〕

次に本発明について図面を参照して説明する。 Next, the present invention will be explained with reference to the drawings.

第１図は本発明の第１の実施例の断面図である。FIG. 1 is a sectional view of a first embodiment of the invention.

ＬＣＤパネル１にはＬＣＤパネル端子７が引き出されて
いる。一方ＬＣＤ駆動基板２の上にはＬＣＤパネル端子
７に対応するように導電パターン６が設けられている。LCD panel terminals 7 are drawn out from the LCD panel 1 . On the other hand, a conductive pattern 6 is provided on the LCD drive board 2 so as to correspond to the LCD panel terminal 7.

そしてＬＣＤパネル端子７より異方性導電フィルム４を
１２２（０，２ｍｍ〜０．５ｍｍ）はみ出し、導電パタ
ーン６より異方性導電フィルム４を（ｌ　ｌ（０，２ｍ
ｍ〜０．５ｍｍ）はみ出して設置し、重ね合わせＬＣＤ
駆動基板２の上方より加熱押圧し、ＬＣＤパネル端子７
と導体パターン６を電気的に接続する。そして異方性導
電フィルム４部に防湿樹脂３を塗布している。Then, the anisotropic conductive film 4 is protruded 122 (0.2 mm to 0.5 mm) from the LCD panel terminal 7, and the anisotropic conductive film 4 is protruded from the conductive pattern 6 by 122 mm (0.2 mm to 0.5 mm).
m ~ 0.5mm) installed with overlapping LCD
Heat and press the drive board 2 from above to connect the LCD panel terminal 7.
and the conductor pattern 6 are electrically connected. A moisture-proof resin 3 is applied to 4 parts of the anisotropic conductive film.

第２図は本発明の第２の実施例の断面図である。FIG. 2 is a sectional view of a second embodiment of the invention.

この実施例では異方性導電フィルム４の形状を導電パタ
ーン６およびＬＣＤパネル端子７の先端部をつつむ構造
としている。この実施例は異方性導電フィルム４の設置
が容易となる利点がある。In this embodiment, the anisotropic conductive film 4 has a shape that surrounds the conductive pattern 6 and the tip of the LCD panel terminal 7. This embodiment has the advantage that the anisotropic conductive film 4 can be easily installed.

〔発明の効果〕〔Effect of the invention〕

以上説明したように本発明は、ＬＣＤパネル端子７より
、異方性導電フィルム４を０．２　ｍｍ〜０．５ｍｍは
み出し、導電パターン６より異方性導電フィルム４を０
．２ｎ＋ｍ〜０．５　ｍｍはみ出して、設置することに
より、ＬＣＤパネル端子７と導電パターン６間への防湿
樹脂３０入り込みを防止できる。よってＬＣＤパネル端
子７と導電パターン６は安定に接続され、接触不良を防
止できる効果がある。As explained above, in the present invention, the anisotropic conductive film 4 protrudes from the LCD panel terminal 7 by 0.2 mm to 0.5 mm, and the anisotropic conductive film 4 protrudes from the conductive pattern 6 by 0.2 mm to 0.5 mm.
．． By installing it with a protrusion of 2n+m to 0.5 mm, it is possible to prevent the moisture-proof resin 30 from entering between the LCD panel terminal 7 and the conductive pattern 6. Therefore, the LCD panel terminal 7 and the conductive pattern 6 are stably connected, and there is an effect that poor contact can be prevented.

【図面の簡単な説明】[Brief explanation of the drawing]

第１図は、本発明の第１の実施例の断面図、第２図は本
発明の第２の実施例の断面図、第３図（ａ）、　（ｂ）
は従来の液晶ディスプレイ駆動基板の接続方法を示す断
面図である。 １・・・・・・ＬＣＤパネル、２・・・・・・ＬＣＤ駆
動基板、３・・・・・・防湿樹脂、４・・・・・・異方
性導電フィルム、５・・・・・・ＬＳＩ、６・・・・・
・導電パターン、７・・・・・・ＬＣＤパネル端子。FIG. 1 is a cross-sectional view of a first embodiment of the present invention, FIG. 2 is a cross-sectional view of a second embodiment of the present invention, and FIGS. 3(a) and (b)
FIG. 1 is a cross-sectional view showing a conventional method of connecting a liquid crystal display driving board. 1... LCD panel, 2... LCD drive board, 3... Moisture-proof resin, 4... Anisotropic conductive film, 5...・LSI, 6...
・Conductive pattern, 7...LCD panel terminal.

Claims (1)

【特許請求の範囲】[Claims] 液晶ディスプレイパネルの端子と液晶ディスプレイ駆動
基板に前記パネル端子に対応するように設けた導体パタ
ーンとの間に異方性導電フィルムを介在させて重ね合わ
せ前記液晶ディスプレイ駆動基板の背部より加熱押圧し
て前記パネル端子と導体パターンを接続する液晶ディス
プレイ駆動基板の接続方法において、前記導体パターン
より異方性導電フィルムを０．２ｍｍ〜０．５ｍｍつき
出し、また前記液晶ディスプレイパネルの端子より異方
性導電フィルムを０．２ｍｍ〜０．５ｍｍつき出したこ
とを特徴とする液晶ディスプレイ駆動基板の接続方法。An anisotropic conductive film is interposed between the terminals of the liquid crystal display panel and a conductive pattern provided on the liquid crystal display drive board so as to correspond to the panel terminals, and the layers are heated and pressed from the back of the liquid crystal display drive board. In the method for connecting a liquid crystal display drive board that connects the panel terminal and a conductor pattern, an anisotropic conductive film is protruded from the conductor pattern by 0.2 mm to 0.5 mm, and an anisotropic conductive film is protruded from the terminal of the liquid crystal display panel by 0.2 mm to 0.5 mm. A method for connecting a liquid crystal display drive board, characterized in that a film is protruded by 0.2 mm to 0.5 mm.
JP1290336A 1989-11-07 1989-11-07 Liquid crystal display board Expired - Lifetime JP2522071B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP1290336A JP2522071B2 (en) 1989-11-07 1989-11-07 Liquid crystal display board

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP1290336A JP2522071B2 (en) 1989-11-07 1989-11-07 Liquid crystal display board

Publications (2)

Publication Number Publication Date
JPH03150531A true JPH03150531A (en) 1991-06-26
JP2522071B2 JP2522071B2 (en) 1996-08-07

Family

ID=17754741

Family Applications (1)

Application Number Title Priority Date Filing Date
JP1290336A Expired - Lifetime JP2522071B2 (en) 1989-11-07 1989-11-07 Liquid crystal display board

Country Status (1)

Country Link
JP (1) JP2522071B2 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5375003A (en) * 1991-03-29 1994-12-20 Rohm Co., Ltd. Method of connecting a tab film and a liquid crystal display panel
US5528403A (en) * 1992-04-30 1996-06-18 Sharp Kabushiki Kaisha Flat type display device having flexible wiring board and common wiring board bonded to display panel
US9690150B2 (en) 2015-04-10 2017-06-27 Mitsubishi Electric Corporation Electro-optical display device

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60191228A (en) * 1984-10-29 1985-09-28 Seiko Epson Corp Connecting structure of display device
JPS6152629A (en) * 1984-08-22 1986-03-15 Sharp Corp Electrode terminal fetch structure of plane type display panel
JPS6170836U (en) * 1984-10-15 1986-05-14
JPS6410221A (en) * 1987-07-02 1989-01-13 Canon Kk Method for connecting external circuit of liquid crystal panel
JPH01111224U (en) * 1988-01-18 1989-07-26

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6152629A (en) * 1984-08-22 1986-03-15 Sharp Corp Electrode terminal fetch structure of plane type display panel
JPS6170836U (en) * 1984-10-15 1986-05-14
JPS60191228A (en) * 1984-10-29 1985-09-28 Seiko Epson Corp Connecting structure of display device
JPS6410221A (en) * 1987-07-02 1989-01-13 Canon Kk Method for connecting external circuit of liquid crystal panel
JPH01111224U (en) * 1988-01-18 1989-07-26

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5375003A (en) * 1991-03-29 1994-12-20 Rohm Co., Ltd. Method of connecting a tab film and a liquid crystal display panel
US5528403A (en) * 1992-04-30 1996-06-18 Sharp Kabushiki Kaisha Flat type display device having flexible wiring board and common wiring board bonded to display panel
US5606440A (en) * 1992-04-30 1997-02-25 Sharp Kabushiki Kaisha Assembling method of flat type display device
US9690150B2 (en) 2015-04-10 2017-06-27 Mitsubishi Electric Corporation Electro-optical display device

Also Published As

Publication number Publication date
JP2522071B2 (en) 1996-08-07

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