JPH0296795A - Liquid crystal display device - Google Patents

Liquid crystal display device

Info

Publication number
JPH0296795A
JPH0296795A JP25012488A JP25012488A JPH0296795A JP H0296795 A JPH0296795 A JP H0296795A JP 25012488 A JP25012488 A JP 25012488A JP 25012488 A JP25012488 A JP 25012488A JP H0296795 A JPH0296795 A JP H0296795A
Authority
JP
Japan
Prior art keywords
cof
liquid crystal
crystal display
bus
panel
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
JP25012488A
Other languages
Japanese (ja)
Inventor
Minoru Hirata
稔 平田
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.)
Seiko Epson Corp
Original Assignee
Seiko Epson 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 Seiko Epson Corp filed Critical Seiko Epson Corp
Priority to JP25012488A priority Critical patent/JPH0296795A/en
Publication of JPH0296795A publication Critical patent/JPH0296795A/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
    • G02F1/133308—Support structures for LCD panels, e.g. frames or bezels
    • 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
    • H05K3/00—Apparatus or processes for manufacturing printed circuits
    • H05K3/30—Assembling printed circuits with electric components, e.g. with resistor
    • H05K3/303—Surface mounted components, e.g. affixing before soldering, aligning means, spacing means
    • 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)
  • Mathematical Physics (AREA)
  • Chemical & Material Sciences (AREA)
  • Crystallography & Structural Chemistry (AREA)
  • General Physics & Mathematics (AREA)
  • Optics & Photonics (AREA)
  • Liquid Crystal (AREA)
  • Devices For Indicating Variable Information By Combining Individual Elements (AREA)

Abstract

PURPOSE:To prevent peeling and cutting of a chip-on-flexible tape (COF) against the expansion and contraction effect, oscillation and impact of a supporting base by fixing a part of the COF by an adhesive agent or tacky adhesive tape to at least either of a panel or driving circuit board (BUS-PCB). CONSTITUTION:The output side of the COF 3 is thermocompression bonded to the panel 1 and the input side of the COF 3 is packaged by soldering to the BUS-PCB 2. The adhesive agent 7 is applied to a part of the COF 3 and is fixed to the BUS-PCB 2. The breakage in the input part of the COF 3 by the expansion and contraction effect of the supporting base 4 is prevented in this way and in addition, the strength to the oscillation and impact is enhanced. The generation of the breakage by the exertion of load to the COF 3 during the process is prevented as well.

Description

【発明の詳細な説明】 〔産業上の利用分野〕 本発明は少なくとも液晶表示パネルと駆動回路基板とＣ
ＯＦを有する液晶表示装置の構造に関する。[Detailed Description of the Invention] [Industrial Application Field] The present invention relates to at least a liquid crystal display panel, a driving circuit board, and a C.
The present invention relates to the structure of a liquid crystal display device having an OF.

〔従来の技術〕[Conventional technology]

従来は第３図（ａ）、（ｂ）に示すように、液晶表示パ
ネル（以下パネルと呼ぶ）１に液晶駆動回路をフレキシ
ブルテープに搭載した素子（以下ＣＯＦ　（チップ・オ
ン・フレキシブルテープ）と呼ぶ）３を取りつけてあり
、またこのＣＯＦ間の電気信号を伝達させるため駆動回
路基板（以下、ＢＵＳ−ＰＣＢと呼ぶ）２に実装してい
た。このような構造ではＣ０Ｆ３とパネル１は熱圧着で
接続され、Ｃ０Ｆ３とＢＵＳ−ＰＣＢ２は半田付によっ
て接続されているものが知られていた。Conventionally, as shown in Figures 3(a) and (b), a liquid crystal display panel (hereinafter referred to as panel) 1 has a liquid crystal drive circuit mounted on a flexible tape (hereinafter referred to as COF (chip-on-flexible tape)). A drive circuit board (hereinafter referred to as BUS-PCB) 2 was mounted to transmit electrical signals between the COFs. In such a structure, it has been known that the C0F3 and the panel 1 are connected by thermocompression bonding, and the C0F3 and the BUS-PCB2 are connected by soldering.

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

しかし、前述の従来技術では、パネル１とＢＵＳ−ＰＣ
Ｂ２がＣ０Ｆ３を介して連結されているものを支持台４
に搭載し、シリコンゴム５を介しｔ圧縮固定されていた
ため、支持台４の伸縮作用によって、パネル側ではＣＰ
Ｆ３のはがれ、ＢＵＳ−ＰＣＢ２側では端子部の切れが
発生した。However, in the above-mentioned conventional technology, the panel 1 and the BUS-PC
B2 is connected via C0F3 to support stand 4
CP was mounted on the panel and was compressed and fixed via the silicone rubber 5, so due to the expansion and contraction of the support base 4, the CP on the panel side
F3 peeled off, and the terminal part broke on the BUS-PCB2 side.

そこで本発明は、このような問題点を解決するもので、
その目的とするところは支持台の伸縮作用に対し、高信
頼性の液晶表示装置をｔｕｆｔするところにある。Therefore, the present invention aims to solve these problems.
The purpose is to tuft a highly reliable liquid crystal display device against the expansion and contraction action of the support base.

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

本発明の液晶表示装置は、液晶表示パネルと駆動回路基
板とＣＯＦ　（チップ・オン・フレキシブルテープ）と
をＨする液晶表示装置において、前記ＣＯＦの一部を前
記液晶表示パネルまたは前記駆動回路基板の少なくとも
一方に接着固定することを特徴とする。The liquid crystal display device of the present invention is a liquid crystal display device in which a liquid crystal display panel, a drive circuit board, and a COF (chip-on-flexible tape) are connected together. It is characterized by being adhesively fixed to at least one side.

〔実　施　例１〕 第１図（ａ）、（ｂ）に本発明の実施例１を示す。[Implementation example 1] Embodiment 1 of the present invention is shown in FIGS. 1(a) and 1(b).

パネル１にＣ０Ｆ３の出力側を熱圧着し、ＢＵＳ−ＰＣ
Ｂ２にＣＯＦの入力側を半田付にて実装する。このＣＯ
Ｆの一部（２ケ所）に接着剤７を塗布しＢＵＳ−ＰＣＢ
２と固定した。これによって、支持台４の伸縮作用に対
して、Ｃ０Ｆ３の入力部の切れが防止されたばかりでな
く、耐振動、耐衝撃性に対しても強くなった。また工程
中にＣＯＦに負荷がかかり切れが発生するということも
防止された。尚、接着剤のかわりに粘着テープを使用し
ても同様の効果が得られた。Heat and press the output side of C0F3 to panel 1, and connect it to BUS-PC.
Mount the input side of the COF on B2 by soldering. This CO
Apply adhesive 7 to part (2 places) of F and connect BUS-PCB.
It was fixed at 2. This not only prevents the input section of the C0F3 from breaking due to the expansion and contraction of the support base 4, but also increases the vibration resistance and impact resistance. Furthermore, it was also possible to prevent the COF from being overloaded during the process and from running out. Note that the same effect was obtained even when adhesive tape was used instead of adhesive.

〔実　施　例２〕 第２図（ａ）、（ｂ）に本発明の実施例２を示す。[Implementation example 2] Embodiment 2 of the present invention is shown in FIGS. 2(a) and 2(b).

実施例１に対し、Ｃ０Ｆ３の出力側に接着剤７を塗布し
、パネル１とＣ０Ｆ３を固定させた。これによって支持
台４の伸縮作用に対して、Ｃ０Ｆ３の出力部のはがれが
防止された。実施例１と同様に耐振動、耐衝撃性に対し
ても強くなり、工程中におけるＣ０Ｆ３の負荷によるは
がれを防止することも可能となった。In contrast to Example 1, adhesive 7 was applied to the output side of C0F3 to fix panel 1 and C0F3. This prevented the output part of C0F3 from peeling off due to the expansion and contraction action of the support base 4. As in Example 1, it also has strong vibration resistance and impact resistance, and it is also possible to prevent peeling due to the load of C0F3 during the process.

〔発明の効果〕〔Effect of the invention〕

以上のように、本発明によれば、ＣＯＦの一部をパネル
またはＢＵＳ−ＰＣＢの少なくとも一方に接着剤または
粘着テープで固定することによって、支持台の伸縮作用
、振動、衝撃に対して、ＣＯＦのはがれ及び切れを防止
するという効果を有する。また工程中のＣＯＦの負荷に
よるＣＯＦのはがれ及び切れを防止するという効果も存
する。As described above, according to the present invention, by fixing a part of the COF to at least one of the panel or the BUS-PCB with adhesive or adhesive tape, the COF This has the effect of preventing peeling and cutting. It also has the effect of preventing the COF from peeling off or breaking due to the load on the COF during the process.

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

第１図（ａ）、（ｂ）は本発明の実施例１を示す図。 第２図（ａ）、（ｂ）は本発明の実施例２を示す図。 第３図（ａ）、（ｂ）は従来の液晶表示装置を示す図。 ・パネル ・ＢＵＳ−ＰＣＢ ・ＣＯＦ ・支持台 ・シリコンゴム ・ケース ・接着剤 以上 出願人　セイコーエプソン株式会社 代理人　弁理士　鈴　木　喜三部（他１名）第１図（ｂ
） 第２図（ｂ） 第３図（１））FIGS. 1(a) and 1(b) are diagrams showing Embodiment 1 of the present invention. FIGS. 2(a) and 2(b) are diagrams showing a second embodiment of the present invention. FIGS. 3(a) and 3(b) are diagrams showing a conventional liquid crystal display device.・Panel ・BUS-PCB ・COF ・Support stand ・Silicone rubber ・Case ・Adhesive Applicant Seiko Epson Corporation Representative Patent attorney Kizobe Suzuki (and 1 other person) Figure 1 (b)
) Figure 2 (b) Figure 3 (1))

Claims (1)

【特許請求の範囲】[Claims] 液晶表示パネルと駆動回路基板とＣＯＦ（チップ・オン
・フレキシブルテープ）とを有する液晶表示装置におい
て、前記ＣＯＦの一部を前記液晶表示パネルまたは前記
駆動回路基板の少なくとも一方に接着固定することを特
徴とする液晶表示装置。A liquid crystal display device having a liquid crystal display panel, a drive circuit board, and a COF (chip on flexible tape), characterized in that a part of the COF is adhesively fixed to at least one of the liquid crystal display panel or the drive circuit board. A liquid crystal display device.
JP25012488A 1988-10-04 1988-10-04 Liquid crystal display device Pending JPH0296795A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP25012488A JPH0296795A (en) 1988-10-04 1988-10-04 Liquid crystal display device

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP25012488A JPH0296795A (en) 1988-10-04 1988-10-04 Liquid crystal display device

Publications (1)

Publication Number Publication Date
JPH0296795A true JPH0296795A (en) 1990-04-09

Family

ID=17203179

Family Applications (1)

Application Number Title Priority Date Filing Date
JP25012488A Pending JPH0296795A (en) 1988-10-04 1988-10-04 Liquid crystal display device

Country Status (1)

Country Link
JP (1) JPH0296795A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0772493A (en) * 1993-09-06 1995-03-17 Katoo Seiko:Kk Method for assembling liquid crystal display

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH0772493A (en) * 1993-09-06 1995-03-17 Katoo Seiko:Kk Method for assembling liquid crystal display

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