JPH0359535A - Liquid crystal display device - Google Patents

Liquid crystal display device

Info

Publication number
JPH0359535A
JPH0359535A JP19417989A JP19417989A JPH0359535A JP H0359535 A JPH0359535 A JP H0359535A JP 19417989 A JP19417989 A JP 19417989A JP 19417989 A JP19417989 A JP 19417989A JP H0359535 A JPH0359535 A JP H0359535A
Authority
JP
Japan
Prior art keywords
liquid crystal
crystal display
display cell
tab
circuit board
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
Application number
JP19417989A
Other languages
Japanese (ja)
Inventor
Chiharu Kawaguchi
千春 川口
Masafumi Enomoto
榎本　雅文
Saburo Watanabe
三郎 渡辺
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.)
Hitachi Ltd
Hitachi Consumer Electronics Co Ltd
Japan Display Inc
Original Assignee
Hitachi Device Engineering Co Ltd
Hitachi Ltd
Hitachi Consumer Electronics Co Ltd
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 Hitachi Device Engineering Co Ltd, Hitachi Ltd, Hitachi Consumer Electronics Co Ltd filed Critical Hitachi Device Engineering Co Ltd
Priority to JP19417989A priority Critical patent/JPH0359535A/en
Publication of JPH0359535A publication Critical patent/JPH0359535A/en
Pending legal-status Critical Current

Links

Classifications

    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F1/00—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics
    • G02F1/01—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour 
    • G02F1/13—Devices or arrangements for the control of the intensity, colour, phase, polarisation or direction of light arriving from an independent light source, e.g. switching, gating or modulating; Non-linear optics for the control of the intensity, phase, polarisation or colour  based on liquid crystals, e.g. single liquid crystal display cells
    • G02F1/133—Constructional arrangements; Operation of liquid crystal cells; Circuit arrangements
    • G02F1/1333—Constructional arrangements; Manufacturing methods
    • G02F1/1345—Conductors connecting electrodes to cell terminals
    • G02F1/13452—Conductors connecting driver circuitry and terminals of panels
    • G—PHYSICS
    • G02—OPTICS
    • G02F—OPTICAL DEVICES OR ARRANGEMENTS FOR THE CONTROL OF LIGHT BY MODIFICATION OF THE OPTICAL PROPERTIES OF THE MEDIA OF THE ELEMENTS INVOLVED THEREIN; NON-LINEAR OPTICS; FREQUENCY-CHANGING OF LIGHT; OPTICAL LOGIC ELEMENTS; OPTICAL ANALOGUE/DIGITAL CONVERTERS
    • G02F2201/00—Constructional arrangements not provided for in groups G02F1/00 - G02F7/00
    • G02F2201/50—Protective arrangements
    • G02F2201/503—Arrangements improving the resistance to shock
    • 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
    • H05K1/00—Printed circuits
    • H05K1/02—Details
    • H05K1/14—Structural association of two or more 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
    • H05K3/36—Assembling printed circuits with other printed circuits
    • H05K3/361—Assembling flexible printed circuits with other printed circuits

Landscapes

  • Physics & Mathematics (AREA)
  • Nonlinear Science (AREA)
  • Liquid Crystal (AREA)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)

Abstract

PURPOSE:To prevent the generation of a disconnection of a TAB connecting part by fixing a liquid crystal display cell, a TAB (tape Automated Bonding) element loaded with a circuit for driving this liquid crystal display cell, and a circuit board onto a glass plate or a resin plate through an adhesive agent. CONSTITUTION:The liquid crystal display device is formed by fixing a liquid crystal display cell 1 and a circuit board 3 connected electrically to each other onto a glass plate or a high polymer resin plate 5 through an adhesive agent 4 (for instance, silicone resin). In such a way, when the liquid crystal display cell 1 and the circuit board 3 are fixed onto the glass substrate or the high polymer resin plate through the adhesive agent 4, even if vibration or impact is applied to the liquid crystal display device 10, a relative position of the liquid crystal display cell 1 and the circuit board 3 is not fluctuated, therefore, it does not occur that an excessive stress is applied to a connecting part of a film carrier 2 for TAB connected to an electrode terminal part of the liquid crystal display cell 1. In such a way, the generation of a disconnection of the connecting part, etc., of the film carrier 2 for TAB is prevented.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は、液晶表示セルとこれを駆動する回路からなる
液晶表示装置に関する。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a liquid crystal display device comprising a liquid crystal display cell and a circuit for driving the cell.

〔従来の技術〕[Conventional technology]

液晶表示セルとこれを駆動する回路の電気的接続は、雑
誌ｒＨＹＢＲＩＤＪ第２巻第４号第３０頁〜第３３頁の
ｒＬＣＤの実装技術」に詳細に述べられている。ドライ
バーＩＣをプリント基板に載せて、液晶表示セルの電極
端子とＩＣのリードを電気的に接続したり、ドライバー
ＩＣを実装したフィルムキャリアを利用してＴＡＢ　（
Ｔａｐａ　Ａｕｔｏｍａｔｅｄ　Ｂ　ｏｎｄｉｎｇ）技
術により液晶表示セルの電極端子とＩＣのリードを電気
的に接続することが行われている。The electrical connection between a liquid crystal display cell and a circuit that drives it is described in detail in "rLCD mounting technology" in the magazine rHYBRIDJ, Vol. 2, No. 4, pages 30 to 33. You can place the driver IC on a printed circuit board and electrically connect the electrode terminals of the liquid crystal display cell and the leads of the IC, or use a film carrier on which the driver IC is mounted to perform TAB (
The electrode terminals of a liquid crystal display cell and the leads of an IC are electrically connected using Tapa Automated Bonding technology.

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

液晶表示セルの電極端子にＴＡＢ技術によりフィルムキ
ャリアを接続した場合、振動、衝撃によりＴＡＢ接続部
が断線するという問題があった。When a film carrier is connected to an electrode terminal of a liquid crystal display cell by TAB technology, there is a problem in that the TAB connection part is disconnected due to vibration or impact.

本発明の目的は、ＴＡＢ接続部の信頼性を向上すること
にある。An object of the present invention is to improve the reliability of the TAB connection.

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

上記目的は、液晶表示セルおよび回路基板をガラス板あ
るいは樹脂板上に接着剤を介して固定することにより達
成される。The above object is achieved by fixing the liquid crystal display cell and the circuit board onto a glass plate or a resin plate via an adhesive.

〔作用〕[Effect]

液晶表示セルおよび回路基板がガラス板あるいは樹脂板
上に接着剤により固定されているため。This is because the liquid crystal display cell and circuit board are fixed on a glass plate or resin plate with adhesive.

ＴＡＢ接続部に振動、衝撃によるストレスが加わらない
ので、ＴＡＢ接続部の断線の発生が防止できる。Since no stress due to vibration or impact is applied to the TAB connection, it is possible to prevent the occurrence of disconnection of the TAB connection.

〔実施例〕〔Example〕

以下、本発明の一実施例を第１図により説明する。 An embodiment of the present invention will be described below with reference to FIG.

液晶表示セル１の上側基板１１および下側基板１２の端
部には液晶表示セル１へ駆動電圧を印加するための電極
端子が形成されている。この電極端子上にＩＣが実装さ
れたＴＡＢ用フィルムキャリア２の一方側の端子が、異
方性コネクタ（例えば、接着剤に導電性粒子が埋め込ま
れたもの）を介して熱圧着されている。ＴＡＢ用フィル
ムキャリア２の他方側の端子は回路基板３上の電極端子
に例えばハンダ付などで電気的に接続されている。Electrode terminals for applying a driving voltage to the liquid crystal display cell 1 are formed at the ends of the upper substrate 11 and the lower substrate 12 of the liquid crystal display cell 1 . One terminal of the TAB film carrier 2 on which the IC is mounted is thermocompression bonded via an anisotropic connector (for example, one in which conductive particles are embedded in an adhesive). The terminal on the other side of the TAB film carrier 2 is electrically connected to an electrode terminal on the circuit board 3 by, for example, soldering.

さらに回路基板３には、液晶表示セルエの駆動に必要な
ＩＣ６なども搭載されている。このように相互に電気的
に接続された液晶表示セル１９回路基板３が、ガラス板
あるいは高分子樹脂板５上に接着剤４（例えばシリコン
樹脂）を介して固定されて液晶表示装置が形成されてい
る。Furthermore, the circuit board 3 is also equipped with an IC 6 necessary for driving the liquid crystal display CELUE. The liquid crystal display cells 19 and circuit board 3 electrically connected to each other in this manner are fixed onto a glass plate or polymer resin plate 5 via an adhesive 4 (for example, silicone resin) to form a liquid crystal display device. ing.

このように液晶表示セル１および回路基板３が接着剤４
を介して、ガラス基板あるいは高分子樹脂板上に固定さ
れていると、液晶表示装置１０に振動あるいは衝撃が加
わっても、液晶表示セル１と回路基板３の相対位置の変
動がないので、液晶表示セル１の電極端子部に接続され
ているＴＡＢ用フィルムキャリア２の接続部に過度のス
トレスが加わることがないので、ＴＡＢ用フィルムキャ
リア２の接続部などに断線が発生することはない。In this way, the liquid crystal display cell 1 and the circuit board 3 are bonded with the adhesive 4.
If the liquid crystal display device 10 is fixed on a glass substrate or a polymer resin plate via a Since excessive stress is not applied to the connecting portion of the TAB film carrier 2 connected to the electrode terminal portion of the display cell 1, disconnection does not occur at the connecting portion of the TAB film carrier 2.

なお、上記実施例において、ガラス基板あるいは高分子
樹脂板４の表面に導電膜を形成するなどして導電化すれ
ば電磁、静電シールド効果をも得ることも出来る。In the above embodiments, electromagnetic and electrostatic shielding effects can also be obtained by forming a conductive film on the surface of the glass substrate or polymer resin plate 4 to make it conductive.

さらに、上記接着剤４として透明なものを使い、基板５
を液晶表示セル１の観視側に配置し、この基板５の表面
に光学的反射防止膜を形成することも出来る。Furthermore, using a transparent adhesive 4, the substrate 5
It is also possible to arrange the substrate 5 on the viewing side of the liquid crystal display cell 1 and form an optical antireflection film on the surface of the substrate 5.

さらには、ＴＡＢ用フィルムキャリア２をも基板５に接
着剤で固定すると更に本発明の効果が上がることは勿論
である。Furthermore, it goes without saying that the effects of the present invention will be further enhanced if the TAB film carrier 2 is also fixed to the substrate 5 with an adhesive.

〔発明の効果〕〔Effect of the invention〕

本発明によれば、ＴＡＢ用フィルムキャリアに過度のス
トレスが加わることがなくなるのでＴＡＢ用フィルムキ
ャリアの接続部の信頼性が大幅に向上する。According to the present invention, since excessive stress is not applied to the TAB film carrier, the reliability of the connection portion of the TAB film carrier is greatly improved.

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

第１図は、本発明の一実施例を示す斜視図である。 ｌ・・・液晶表示セル、２・・・ＴＡＢ用フィルムキャ
リア、３・・・回路基板、４・・・接着剤。 ５・・・基板、６・・・ＩＣ１１０・・・液晶表第１図FIG. 1 is a perspective view showing an embodiment of the present invention. l...Liquid crystal display cell, 2...film carrier for TAB, 3...circuit board, 4...adhesive. 5...Substrate, 6...IC110...Liquid crystal table Figure 1

Claims (1)

【特許請求の範囲】 １、液晶表示セルと、この液晶表示セルを駆動する回路
を搭載したＴＡＢ素子および回路基板とをガラス板ある
いは樹脂板上に接着剤を介して固定した液晶表示装置。 ２、前記ガラス板あるいは樹脂板上に導電膜を形成した
特許請求の範囲第１項記載の液晶表示装置。 ３、前記ガラス板あるいは樹脂板が透明板からなり、前
記液晶表示セルの観視者側に配置された特許請求の範囲
第１項記載の液晶表示装置。 ４、前記ガラス板あるいは樹脂板の観視者側に反射防止
膜が形成された特許請求の範囲第３項記載の液晶表示装
置。[Scope of Claims] 1. A liquid crystal display device in which a liquid crystal display cell, a TAB element equipped with a circuit for driving the liquid crystal display cell, and a circuit board are fixed onto a glass plate or a resin plate via an adhesive. 2. The liquid crystal display device according to claim 1, wherein a conductive film is formed on the glass plate or the resin plate. 3. The liquid crystal display device according to claim 1, wherein the glass plate or resin plate is a transparent plate and is arranged on the viewer side of the liquid crystal display cell. 4. The liquid crystal display device according to claim 3, wherein an antireflection film is formed on the viewer side of the glass plate or the resin plate.
JP19417989A 1989-07-28 1989-07-28 Liquid crystal display device Pending JPH0359535A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP19417989A JPH0359535A (en) 1989-07-28 1989-07-28 Liquid crystal display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP19417989A JPH0359535A (en) 1989-07-28 1989-07-28 Liquid crystal display device

Publications (1)

Publication Number Publication Date
JPH0359535A true JPH0359535A (en) 1991-03-14

Family

ID=16320250

Family Applications (1)

Application Number Title Priority Date Filing Date
JP19417989A Pending JPH0359535A (en) 1989-07-28 1989-07-28 Liquid crystal display device

Country Status (1)

Country Link
JP (1) JPH0359535A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0508137A2 (en) * 1991-03-11 1992-10-14 Rohm Co., Ltd. Liquid-crystal display device and process for producing the same

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
EP0508137A2 (en) * 1991-03-11 1992-10-14 Rohm Co., Ltd. Liquid-crystal display device and process for producing the same
EP0508137A3 (en) * 1991-03-11 1993-01-20 Rohm Co., Ltd. Liquid-crystal display device and process for producing the same

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