JPH0426824A - Liquid crystal display device - Google Patents

Liquid crystal display device

Info

Publication number
JPH0426824A
JPH0426824A JP2131296A JP13129690A JPH0426824A JP H0426824 A JPH0426824 A JP H0426824A JP 2131296 A JP2131296 A JP 2131296A JP 13129690 A JP13129690 A JP 13129690A JP H0426824 A JPH0426824 A JP H0426824A
Authority
JP
Japan
Prior art keywords
liquid crystal
crystal display
printed wiring
wiring board
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
JP2131296A
Other languages
Japanese (ja)
Inventor
Kiichiro Kubo
毅一郎 久保
Toshiyuki Sakuma
敏幸 佐久間
Toshihiko Yabuuchi
薮内　俊彦
Teruo Seki
輝夫 関
Toshihiro Yajima
利浩 矢島
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
Original Assignee
Hitachi 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 Ltd filed Critical Hitachi Ltd
Priority to JP2131296A priority Critical patent/JPH0426824A/en
Priority to DE4115160A priority patent/DE4115160A1/en
Priority to KR1019910008318A priority patent/KR920022025A/en
Publication of JPH0426824A publication Critical patent/JPH0426824A/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
    • 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
    • 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
    • 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
    • H05K1/0271—Arrangements for reducing stress or warp in rigid printed circuit boards, e.g. caused by loads, vibrations or differences in thermal expansion
    • 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
    • H05K1/03—Use of materials for the substrate
    • H05K1/0393—Flexible materials
    • 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
    • H05K1/142—Arrangements of planar printed circuit boards in the same plane, e.g. auxiliary printed circuit insert mounted in a main printed circuit
    • 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
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10007—Types of components
    • H05K2201/10128—Display
    • H05K2201/10136—Liquid Crystal display [LCD]
    • 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
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/10—Details of components or other objects attached to or integrated in a printed circuit board
    • H05K2201/10613—Details of electrical connections of non-printed components, e.g. special leads
    • H05K2201/10621—Components characterised by their electrical contacts
    • H05K2201/10681—Tape Carrier Package [TCP]; Flexible sheet connector
    • 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
    • H05K2201/00—Indexing scheme relating to printed circuits covered by H05K1/00
    • H05K2201/20—Details of printed circuits not provided for in H05K2201/01 - H05K2201/10
    • H05K2201/2009—Reinforced areas, e.g. for a specific part of a flexible printed circuit

Abstract

PURPOSE:To prevent the connection of a liquid crystal display element with a printed wiring board from being cut off and to thin a device by providing a reinforcing plate attached to the end of the liquid crystal display element and the end of the printed wiring board. CONSTITUTION:One terminal of a flexible board 3 on which a liquid crystal display driving circuit element 4 is mounted is connected to the terminal of the liquid crystal display element 1 by using an anisotropic conductive adhesive sheet, and the other terminal of the board 3 is connected to the terminal of the printed wiring board 2 by soldering. Then, the reinforcing plate 5 is attached to the end of the element 1 and the end of the board 2 with an adhesive. Therefore, force exerted from the external does not act on the board 3 even though the element 1 and the board 2 are not fixed by a frame. Thus, the connection of the element 1 with the board 2 is not cut off and the liquid crystal display device is thinned.

Description

【発明の詳細な説明】 ［産業上の利用分野］ この発明は液晶表示素子の周囲にプリント配線基板が設
けられ、液晶表示素子とプリント配線基板とがフレキシ
ブル基板を介して接続された液晶表示装置に関するもの
である。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to a liquid crystal display device in which a printed wiring board is provided around a liquid crystal display element, and the liquid crystal display element and the printed wiring board are connected via a flexible board. It is related to.

［従来の技術］ 従来の液晶表示装置（実開昭６１−１５５８８０号公報
）においては、液晶表示素子の周囲にプリント配線基板
を設け、液晶駆動用回路素子を搭載したフレキシブル基
板の一方の端子を異方性導電粘符シートを用いて液晶表
示素子の端ｐに接続し、フレキシブル基板の他方の端子
をハンダによりプリント配線基板の端子に接続しくＴＡ
Ｂ接続方式）、液晶表示素子とプリント配線基板とをフ
レームによって固定している。[Prior Art] In a conventional liquid crystal display device (Japanese Utility Model Publication No. 155880/1988), a printed wiring board is provided around the liquid crystal display element, and one terminal of the flexible board on which the liquid crystal driving circuit element is mounted is connected to the printed wiring board. Connect to the end p of the liquid crystal display element using an anisotropic conductive adhesive sheet, and connect the other terminal of the flexible board to the terminal of the printed wiring board using solder.TA
B connection method), the liquid crystal display element and the printed wiring board are fixed by a frame.

この液晶表示装置においては、液晶表示素子とプリント
配線基板とをフレームによって固定しているから、外部
から加わる力、たとえばハンドリング時に加わる力、輸
送時に加わる力がフレキシブル基板に作用することはな
いので、液晶表示素子とプリント配線基板との接続が切
断されることはない。In this liquid crystal display device, since the liquid crystal display element and the printed wiring board are fixed by the frame, external forces such as forces applied during handling and transportation do not act on the flexible substrate. The connection between the liquid crystal display element and the printed wiring board is never broken.

［発明が解決しようとする課Ｍ］ しかし、このような液晶表示装置においては、液晶表示
素子とプリント配線基板とをフレームによって固定して
いるから、液晶表示装置が厚くなる。[Problem M to be Solved by the Invention] However, in such a liquid crystal display device, since the liquid crystal display element and the printed wiring board are fixed by a frame, the liquid crystal display device becomes thick.

この発明は上述の課題を解決するためになされたもので
、液晶表示素子とプリント配線基板との接続が切断され
ることはなく、しかも薄い液晶表示装置を提供すること
を目的とする。The present invention has been made to solve the above-mentioned problems, and an object of the present invention is to provide a thin liquid crystal display device in which the connection between a liquid crystal display element and a printed wiring board is not disconnected.

［課題を解決するための手段］ この目的を達成するため、この発明においては液晶表示
素子の周囲にプリント配線基板が設けられ、上記液晶表
示素子と上記プリント配線基板とがフレキシブル基板を
介して接続された液晶表示装置において、上記液晶表示
素子の端部と上記プリント配線基板の端部とに取り付け
られた補強板を設ける。[Means for Solving the Problems] In order to achieve this object, in the present invention, a printed wiring board is provided around the liquid crystal display element, and the liquid crystal display element and the printed wiring board are connected via a flexible board. In the liquid crystal display device, a reinforcing plate is provided attached to an end of the liquid crystal display element and an end of the printed wiring board.

［作用］ この液晶表示装置においては、液晶表示素子とプリント
配線基板とをフレームによって固定しなくとも、外部か
ら加わる力がフレキシブル基板に作用することはない。[Function] In this liquid crystal display device, even if the liquid crystal display element and the printed wiring board are not fixed by a frame, no force applied from the outside acts on the flexible board.

〔実施例〕〔Example〕

第１図はこの発明に係る液晶表示装置を示す概略平面図
、第２図は同じく概略裏面図、第３図は第１図の拡大Ａ
−Ａ断面図である。図において、Ｉは液晶表示素子、２
は液晶表示素子１の周囲に設けられたプリント配線基板
で、液晶表示素子ｌとプリント配線基板２との隙間は約
１．０ｍｍである。FIG. 1 is a schematic plan view showing a liquid crystal display device according to the present invention, FIG. 2 is a schematic back view, and FIG. 3 is an enlarged A of FIG. 1.
-A sectional view. In the figure, I is a liquid crystal display element, 2
is a printed wiring board provided around the liquid crystal display element 1, and the gap between the liquid crystal display element 1 and the printed wiring board 2 is about 1.0 mm.

４は液晶駆動用回路素子、３は液晶駆動用回路素子４を
搭載したフレキシブル基板で、フレキシブル基板３の〜
方の端子は異方性導電粘着シートを用いて液晶表示素子
１の端子に接続されており、フレキシブル基板３の他方
の端子はハンダによりプリント配線基板２の端子に接続
されている。５は液晶表示素子１の端部とプリント配線
基板２の端部とに粘着剤により取り付けられた補強板で
、補強板５は厚さ０．８胴、幅７．０胴であり、補強板
５はプリント配線基板２と同等以上の強度を有するハー
ドプラスチック板からなる。4 is a liquid crystal driving circuit element; 3 is a flexible board on which the liquid crystal driving circuit element 4 is mounted;
One terminal is connected to the terminal of the liquid crystal display element 1 using an anisotropic conductive adhesive sheet, and the other terminal of the flexible board 3 is connected to the terminal of the printed wiring board 2 by solder. Reference numeral 5 denotes a reinforcing plate attached to the end of the liquid crystal display element 1 and the end of the printed wiring board 2 with adhesive, and the reinforcing plate 5 has a thickness of 0.8 mm and a width of 7.0 mm. Reference numeral 5 is made of a hard plastic plate having strength equal to or higher than that of the printed wiring board 2.

この液晶表示装置においては、補強板５が液晶表示素子
１の端部とプリント配線基板２の端部とに取り付けられ
ているから、液晶表示素子１とプリント配線基板２とを
フレームによって固定しなくとも、外部から加わる力が
フレキシブル基板３に作用することはないので、液晶表
示素子１とプリント配線基板２との接続が切断されるこ
とはなく、しかも液晶表示装置を薄くすることができる
。In this liquid crystal display device, since the reinforcing plate 5 is attached to the end of the liquid crystal display element 1 and the end of the printed wiring board 2, it is not necessary to fix the liquid crystal display element 1 and the printed wiring board 2 with a frame. In either case, since no force applied from the outside acts on the flexible substrate 3, the connection between the liquid crystal display element 1 and the printed wiring board 2 is not severed, and the liquid crystal display device can be made thinner.

なお、」一連実流側においては、液晶駆動用回路素子４
をフレキシブル基板３に搭載したが、液晶駆動用回路素
子をプリント配線基板に搭載してもよい。In addition, on the actual flow side, the liquid crystal driving circuit element 4
is mounted on the flexible substrate 3, but the liquid crystal driving circuit element may be mounted on a printed wiring board.

［発明の効果］ 以上説明したように、この発明に係る液晶表示装置にお
いては、液晶表示素子とプリント配線基板とをフレーム
によって固定しなくとも、外部から加わる力がフレキシ
ブル基板に作用することはないので、液晶表示素子とプ
リント配線基板との接続が切断されることはなく、しか
も液晶表示装置を薄くすることができる。このように、
この発明の効果は顕著である。[Effects of the Invention] As explained above, in the liquid crystal display device according to the present invention, even if the liquid crystal display element and the printed wiring board are not fixed by a frame, no force applied from the outside acts on the flexible board. Therefore, the connection between the liquid crystal display element and the printed wiring board is not broken, and the liquid crystal display device can be made thinner. in this way,
The effects of this invention are remarkable.

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

第１図はこの発明に係る液晶表示装置を示す概略平面図
、第２図は同じく概略裏面図、第３図は第１図の拡大Ａ
−Ａ断面図である。 ｌ・・液晶表示素子 プリン１〜配線基板 ；３ ・フレキシブル基板 ５・補強板FIG. 1 is a schematic plan view showing a liquid crystal display device according to the present invention, FIG. 2 is a schematic back view, and FIG. 3 is an enlarged A of FIG. 1.
-A sectional view. l...Liquid crystal display element print 1 ~ wiring board; 3 ・Flexible board 5 ・Reinforcement plate

Claims (1)

【特許請求の範囲】[Claims] １、液晶表示素子の周囲にプリント配線基板が設けられ
、上記液晶表示素子と上記プリント配線基板とがフレキ
シブル基板を介して接続された液晶表示装置において、
上記液晶表示素子の端部と上記プリント配線基板の端部
とに取り付けられた補強板を設けたことを特徴とする液
晶表示装置。1. In a liquid crystal display device in which a printed wiring board is provided around a liquid crystal display element, and the liquid crystal display element and the printed wiring board are connected via a flexible substrate,
A liquid crystal display device comprising a reinforcing plate attached to an end of the liquid crystal display element and an end of the printed wiring board.
JP2131296A 1990-05-23 1990-05-23 Liquid crystal display device Pending JPH0426824A (en)

Priority Applications (3)

Application Number Priority Date Filing Date Title
JP2131296A JPH0426824A (en) 1990-05-23 1990-05-23 Liquid crystal display device
DE4115160A DE4115160A1 (en) 1990-05-23 1991-05-08 Light and compact display-frame for lap-top computer - uses ribbon-cables across gap between circuit-board and display
KR1019910008318A KR920022025A (en) 1990-05-23 1991-05-23 Liquid crystal display

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2131296A JPH0426824A (en) 1990-05-23 1990-05-23 Liquid crystal display device

Publications (1)

Publication Number Publication Date
JPH0426824A true JPH0426824A (en) 1992-01-30

Family

ID=15054652

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2131296A Pending JPH0426824A (en) 1990-05-23 1990-05-23 Liquid crystal display device

Country Status (3)

Country Link
JP (1) JPH0426824A (en)
KR (1) KR920022025A (en)
DE (1) DE4115160A1 (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10288948A (en) * 1997-04-16 1998-10-27 Sharp Corp Display device

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE29817181U1 (en) * 2000-11-13 1998-12-17 Lee Yat Shir Electronic reader
KR100615214B1 (en) * 2004-03-29 2006-08-25 삼성에스디아이 주식회사 Flat panel display device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH10288948A (en) * 1997-04-16 1998-10-27 Sharp Corp Display device

Also Published As

Publication number Publication date
KR920022025A (en) 1992-12-19
DE4115160A1 (en) 1991-11-28

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