JPH0296795A - Liquid crystal display device - Google Patents
Liquid crystal display deviceInfo
- 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
Links
- 239000004973 liquid crystal related substance Substances 0.000 title claims description 14
- 239000000853 adhesive Substances 0.000 abstract description 7
- 238000000034 method Methods 0.000 abstract description 4
- 239000002390 adhesive tape Substances 0.000 abstract description 3
- 238000005476 soldering Methods 0.000 abstract description 3
- 230000001595 contractor effect Effects 0.000 abstract 2
- 230000010355 oscillation Effects 0.000 abstract 2
- 230000001070 adhesive effect Effects 0.000 description 5
- 230000008602 contraction Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000010586 diagram Methods 0.000 description 3
- 239000013256 coordination polymer Substances 0.000 description 2
- 229920002379 silicone rubber Polymers 0.000 description 2
- 239000004945 silicone rubber Substances 0.000 description 2
- 239000013310 covalent-organic framework Substances 0.000 description 1
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
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.
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.
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.
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.
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)
・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.
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)
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 |
-
1988
- 1988-10-04 JP JP25012488A patent/JPH0296795A/en active Pending
Cited By (1)
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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