JPH04220623A - Liquid crystal display unit - Google Patents
Liquid crystal display unitInfo
- Publication number
- JPH04220623A JPH04220623A JP40480390A JP40480390A JPH04220623A JP H04220623 A JPH04220623 A JP H04220623A JP 40480390 A JP40480390 A JP 40480390A JP 40480390 A JP40480390 A JP 40480390A JP H04220623 A JPH04220623 A JP H04220623A
- Authority
- JP
- Japan
- Prior art keywords
- lcd
- liquid crystal
- pcb
- crystal display
- tab
- 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 abstract description 22
- 230000003014 reinforcing effect Effects 0.000 claims abstract description 10
- NMWSKOLWZZWHPL-UHFFFAOYSA-N 3-chlorobiphenyl Chemical compound ClC1=CC=CC(C=2C=CC=CC=2)=C1 NMWSKOLWZZWHPL-UHFFFAOYSA-N 0.000 abstract description 9
- 101001082832 Saccharomyces cerevisiae (strain ATCC 204508 / S288c) Pyruvate carboxylase 2 Proteins 0.000 abstract description 9
- 239000000463 material Substances 0.000 abstract description 4
- NIXOWILDQLNWCW-UHFFFAOYSA-N acrylic acid group Chemical group C(C=C)(=O)O NIXOWILDQLNWCW-UHFFFAOYSA-N 0.000 abstract description 2
- 229920000728 polyester Polymers 0.000 abstract description 2
- 239000004820 Pressure-sensitive adhesive Substances 0.000 abstract 1
- 239000012779 reinforcing material Substances 0.000 description 9
- 239000002390 adhesive tape Substances 0.000 description 4
- 101000674732 Homo sapiens TGF-beta-activated kinase 1 and MAP3K7-binding protein 3 Proteins 0.000 description 3
- 101000894525 Homo sapiens Transforming growth factor-beta-induced protein ig-h3 Proteins 0.000 description 3
- 102100021229 TGF-beta-activated kinase 1 and MAP3K7-binding protein 3 Human genes 0.000 description 3
- 102100021398 Transforming growth factor-beta-induced protein ig-h3 Human genes 0.000 description 3
- 230000000694 effects Effects 0.000 description 3
- 208000028485 lattice corneal dystrophy type I Diseases 0.000 description 3
- 238000000034 method Methods 0.000 description 3
- 230000002787 reinforcement Effects 0.000 description 3
- MINPZZUPSSVGJN-UHFFFAOYSA-N 1,1,1,4,4,4-hexachlorobutane Chemical compound ClC(Cl)(Cl)CCC(Cl)(Cl)Cl MINPZZUPSSVGJN-UHFFFAOYSA-N 0.000 description 2
- 101150049492 DVR gene Proteins 0.000 description 2
- 239000000853 adhesive Substances 0.000 description 2
- 230000001070 adhesive effect Effects 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000000758 substrate Substances 0.000 description 2
- FPWNLURCHDRMHC-UHFFFAOYSA-N 4-chlorobiphenyl Chemical compound C1=CC(Cl)=CC=C1C1=CC=CC=C1 FPWNLURCHDRMHC-UHFFFAOYSA-N 0.000 description 1
- 230000002950 deficient Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 238000011900 installation process Methods 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
Landscapes
- Liquid Crystal (AREA)
Abstract
Description
【0001】0001
【産業上の利用分野】本発明は、液晶表示パネル(以下
、LCDと記す)とプリント配線基板(以下、PCBと
記す)とをTAB(テープ オートメイティド ボンデ
ィング)により電気的に接続するTAB方式液晶表示装
置に関する。[Industrial Application Field] The present invention uses a TAB method for electrically connecting a liquid crystal display panel (hereinafter referred to as LCD) and a printed wiring board (hereinafter referred to as PCB) using TAB (tape automated bonding). The present invention relates to a liquid crystal display device.
【0002】0002
【従来の技術】液晶表示装置は、シールドケースと、各
対向面に透明画素電極を設けた2枚の透明ガラス基板を
所定の間隔を隔てて重ね合せ、両基板間に液晶を封入し
て成るLCDと、このLCDを駆動するためのPCBと
、LCDの駆動用ICを実装し、LCDとPCBとを電
気的に接続するTAB等から構成される。[Prior Art] A liquid crystal display device consists of a shield case and two transparent glass substrates each having a transparent pixel electrode provided on each opposing surface, stacked one on top of the other at a predetermined distance, and liquid crystal sealed between the two substrates. It is composed of an LCD, a PCB for driving the LCD, and a TAB on which an IC for driving the LCD is mounted and electrically connects the LCD and the PCB.
【0003】このような構造の従来例の装置としては、
例えば特開平1−136122号公報が挙げられる。Conventional devices with such a structure include:
For example, Japanese Patent Application Laid-Open No. 1-136122 can be cited.
【0004】0004
【発明が解決しようとする課題】このような液晶表示装
置では、組立て工程作業中にPCBに加わるストレスに
より、TABに機械的ストレスかかり、LCDの入力端
子と接続されたTABの出力端子部の接続部が剥がれた
り、TABの入力端子が切れたり、TABに実装された
駆動ICチップを覆う樹脂にクラックが入り、ワイヤボ
ンディングが切れたりする問題があった。[Problems to be Solved by the Invention] In such a liquid crystal display device, mechanical stress is applied to the TAB due to stress applied to the PCB during the assembly process, and the connection between the output terminal portion of the TAB connected to the input terminal of the LCD is affected. There were problems such as parts peeling off, TAB input terminals breaking, cracks appearing in the resin covering the drive IC chip mounted on the TAB, and wire bonding breaking.
【0005】本発明の目的は、TABへ機械的ストレス
がかかるのを防止し、TABの接続剥がれ、入力端子切
れ、ワイヤボンディング切れを防止できる液晶表示装置
を提供することにある。An object of the present invention is to provide a liquid crystal display device that can prevent mechanical stress from being applied to the TAB and prevent the TAB from coming off, input terminals breaking, and wire bonding breaking.
【0006】[0006]
【課題を解決するための手段】上記の課題を解決するた
めに、本発明では、LCDと、PCBと、上記LCDと
上記PCBとを電気的に接続するTABとを有する液晶
表示装置において、上記LCDと上記PCBとを接続固
定する補強材を設けたことを特徴とする。[Means for Solving the Problems] In order to solve the above problems, the present invention provides a liquid crystal display device having an LCD, a PCB, and a TAB electrically connecting the LCD and the PCB. The present invention is characterized in that a reinforcing member is provided to connect and fix the LCD and the PCB.
【0007】[0007]
【作用】本発明の液晶表示装置では、LCDとPCBを
補強材により接続固定したので、TABにかかる機械的
ストレスを低減できるため、TABの接続剥がれや入力
端子の切れ等を防止できる。[Function] In the liquid crystal display device of the present invention, since the LCD and PCB are connected and fixed by a reinforcing material, the mechanical stress applied to the TAB can be reduced, so that it is possible to prevent the TAB from peeling off or the input terminal from breaking.
【0008】[0008]
【実施例】実施例1
図1は、本発明の第1の実施例の液晶表示装置の裏面(
表示画面と反対側)から見たLCD、PCB、TABの
概略平面図である。[Example] Example 1 FIG. 1 shows the back side (
FIG. 3 is a schematic plan view of the LCD, PCB, and TAB viewed from the side opposite to the display screen.
【0009】1はLCD、2はPCB、3はTAB、4
は補強材である。すなわち、LCD1の3方周辺にLC
D1を駆動するためのPCB2が配置され、LCD1の
端子とPCB2の端子とは駆動用IC(図示せず)を実
装した複数個のTAB3を介して電気的に接続されてい
る。TAB3はLCD1の3方周辺に設けられているが
、図1では2方周辺のTABは補強材4に隠れて見えな
い。本実施例では、図示のような2枚の長い板状の補強
材4が、LCD1の端部(端子部)とPCB2の端部の
裏面に両面粘着テープを用いて固定されている。補強材
4は、例えば厚さ0.1mmのポリエステルテープを積
層・接着して0.7mmの板厚にしたもの、あるいはア
クリル板等の固い材料から成る。1 is LCD, 2 is PCB, 3 is TAB, 4
is a reinforcement. In other words, there are LCs around three sides of LCD1.
A PCB 2 for driving D1 is arranged, and terminals of the LCD 1 and terminals of the PCB 2 are electrically connected via a plurality of TABs 3 on which driving ICs (not shown) are mounted. The TABs 3 are provided around three sides of the LCD 1, but in FIG. 1, the TABs around two sides are hidden by the reinforcing material 4 and cannot be seen. In this embodiment, two long plate-shaped reinforcing members 4 as shown in the figure are fixed to the back side of the end (terminal part) of the LCD 1 and the end of the PCB 2 using double-sided adhesive tape. The reinforcing material 4 is made of a hard material such as, for example, a polyester tape having a thickness of 0.1 mm that is laminated and bonded to have a thickness of 0.7 mm, or an acrylic plate.
【0010】PCBにストレスを加えないように液晶表
示装置の組立て工程作業を行うには限界がある。本実施
例では、上記のように、LCD1とPCB2とが補強材
4と両面粘着テープによりしっかり固定されているので
、LCD1とPCB2は機械的な変形が少なく、TAB
3自体には直接機械的ストレスがかかりにくいので、L
CD1の入力端子と接続されたTAB3の接続部が剥が
れたり、TAB3の入力端子が切れたり、TAB3に実
装された駆動ICチップ(図示省略)を覆う樹脂にクラ
ックが入り、ワイヤボンディングが切れたりするのを防
止できる。また、TAB剥がれ、入力端子切れが発生す
ると、高価なTABを捨てなけらばならなかったり、T
ABや駆動ICの不良再生に多大な時間がかかっていた
が、これらの損失を防止できる。[0010] There are limits to how the assembly process of a liquid crystal display device can be performed without applying stress to the PCB. In this embodiment, as mentioned above, since the LCD1 and PCB2 are firmly fixed by the reinforcing material 4 and the double-sided adhesive tape, the LCD1 and PCB2 have little mechanical deformation, and the TAB
Since direct mechanical stress is not easily applied to 3 itself, L
The connection part of TAB3 connected to the input terminal of CD1 may peel off, the input terminal of TAB3 may break, the resin covering the drive IC chip (not shown) mounted on TAB3 may crack, and the wire bonding may break. can be prevented. In addition, if the TAB peels off or the input terminal breaks, you may have to throw away the expensive TAB or
It used to take a lot of time to recover defective ABs and drive ICs, but these losses can be prevented.
【0011】実施例2
図2は、本発明の第2の実施例の液晶表示装置の表示画
面側から見たLCD、PCB、TABの概略平面図であ
る。Embodiment 2 FIG. 2 is a schematic plan view of the LCD, PCB, and TAB of a liquid crystal display device according to a second embodiment of the present invention, viewed from the display screen side.
【0012】TABの接続剥がれや入力端子切れは、L
CDの4隅に多く発生することがわかったので、本実施
例では、この部分の機械的強度を向上させるため、この
4隅に実施例1と同様の固い材料から成る補強材4を両
面粘着テープにより固定した。本実施例でも、実施例1
と同様の効果を有することはいうまでもない。[0012] If the TAB connection is peeled off or the input terminal is broken, the L
It was found that this phenomenon occurs most often at the four corners of the CD, so in this example, in order to improve the mechanical strength of this area, reinforcing materials 4 made of the same hard material as in Example 1 were attached to the four corners with double-sided adhesive. It was fixed with tape. In this example, Example 1
Needless to say, it has a similar effect.
【0013】実施例3
図3は、本発明の第3の実施例の液晶表示装置の表示画
面側から見たLCD、PCB、TABの概略平面図であ
る。Embodiment 3 FIG. 3 is a schematic plan view of the LCD, PCB, and TAB of a liquid crystal display device according to a third embodiment of the present invention, viewed from the display screen side.
【0014】本実施例では、上記実施例1、2のように
別部材の補強材4を設けず、PCB2の形状を図示のよ
うな形状に変更して、PCB2に補強部40を一体化し
て設け、このPCB2の補強部40を両面粘着テープを
用いて直接LCD1に固定した。本実施例でも、第1、
第2の実施例と同様の効果を有することはいうまでもな
い。また、本実施例では、特別の補強材が不用となり、
かつ補強材の取付工程の簡略化ができる。In this embodiment, unlike the first and second embodiments described above, the reinforcing member 4 is not provided as a separate member, but the shape of the PCB 2 is changed to the shape shown in the figure, and the reinforcing portion 40 is integrated into the PCB 2. The reinforcing portion 40 of this PCB 2 was directly fixed to the LCD 1 using double-sided adhesive tape. In this embodiment as well, the first,
Needless to say, this embodiment has the same effects as the second embodiment. In addition, in this example, no special reinforcing material is required,
Moreover, the reinforcing material installation process can be simplified.
【0015】以上本発明を上記実施例に基づいて具体的
に説明したが、本発明は上記実施例に限定されるもので
はなく、その要旨を逸脱しない範囲において種々変更可
能であることは勿論である。例えば、上記実施例では、
LCD1、PCB2と補強材4、または補強部40とを
固定するのに両面粘着テープを用いたが、接着剤を用い
ても接着したり、エポキシ樹脂等を用いて固定してもよ
い。Although the present invention has been specifically explained based on the above-mentioned embodiments, the present invention is not limited to the above-mentioned embodiments, and it goes without saying that various changes can be made without departing from the gist of the invention. be. For example, in the above example,
Although double-sided adhesive tape was used to fix the LCD 1, PCB 2 and the reinforcing material 4 or the reinforcing part 40, they may be fixed using an adhesive, an epoxy resin, or the like.
【0016】[0016]
【発明の効果】以上説明したように本発明では、LCD
とPCBとを補強材で接続固定することにより補強でき
るので、TABに直接機械的ストレスがかからず、TA
Bの剥がれ、入力端子切れを防止できる。その結果、T
ABの使用量の低減、再生時間を低減できる。[Effects of the Invention] As explained above, in the present invention, the LCD
This can be reinforced by connecting and fixing the and PCB with a reinforcing material, so no direct mechanical stress is applied to the TAB, and the TA
This prevents B from peeling off and input terminals breaking. As a result, T
It is possible to reduce the amount of AB used and the playback time.
【図1】本発明の第1の実施例の液晶表示装置の裏面(
表示画面と反対側)から見たLCD、PCB、TABの
概略平面図である。FIG. 1: The back side of a liquid crystal display device according to a first embodiment of the invention (
FIG. 3 is a schematic plan view of the LCD, PCB, and TAB viewed from the side opposite to the display screen.
【図2】本発明の第2の実施例の液晶表示装置の表示画
面側から見たLCD、PCB、TABの概略平面図であ
る。FIG. 2 is a schematic plan view of an LCD, a PCB, and a TAB as seen from the display screen side of a liquid crystal display device according to a second embodiment of the present invention.
【図3】本発明の第3の実施例の液晶表示装置の表示画
面側から見たLCD、PCB、TABの概略平面図であ
る。FIG. 3 is a schematic plan view of an LCD, a PCB, and a TAB as seen from the display screen side of a liquid crystal display device according to a third embodiment of the present invention.
1 LCD 2 PCB 3 TAB 4 補強材 40 補強部 1 LCD 2 PCB 3 TAB 4 Reinforcement material 40 Reinforcement part
Claims (1)
上記液晶表示パネルと上記プリント配線基板とを電気的
に接続するTABとを有する液晶表示装置において、上
記液晶表示パネルと上記プリント配線基板とを接続固定
する補強材を設けたことを特徴とする液晶表示装置。Claim 1: A liquid crystal display panel, a printed wiring board,
A liquid crystal display device having a TAB for electrically connecting the liquid crystal display panel and the printed wiring board, characterized in that a reinforcing member is provided for connecting and fixing the liquid crystal display panel and the printed wiring board. Display device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP40480390A JPH04220623A (en) | 1990-12-21 | 1990-12-21 | Liquid crystal display unit |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP40480390A JPH04220623A (en) | 1990-12-21 | 1990-12-21 | Liquid crystal display unit |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH04220623A true JPH04220623A (en) | 1992-08-11 |
Family
ID=18514464
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP40480390A Pending JPH04220623A (en) | 1990-12-21 | 1990-12-21 | Liquid crystal display unit |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH04220623A (en) |
Cited By (3)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7576994B2 (en) | 2004-04-30 | 2009-08-18 | Lg Display Co., Ltd. | Structure for fixing printed circuit board and method of fixing thereof |
WO2010055722A1 (en) * | 2008-11-11 | 2010-05-20 | シャープ株式会社 | Display apparatus and television receiving apparatus |
CN103033958A (en) * | 2012-12-04 | 2013-04-10 | 深圳市华星光电技术有限公司 | Liquid crystal display screen and liquid crystal display designed on basis of three-dimensional transistor |
-
1990
- 1990-12-21 JP JP40480390A patent/JPH04220623A/en active Pending
Cited By (5)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7576994B2 (en) | 2004-04-30 | 2009-08-18 | Lg Display Co., Ltd. | Structure for fixing printed circuit board and method of fixing thereof |
US7631421B2 (en) | 2004-04-30 | 2009-12-15 | Lg Display Co., Ltd. | Method for fixing printed circuit board on a display panel |
WO2010055722A1 (en) * | 2008-11-11 | 2010-05-20 | シャープ株式会社 | Display apparatus and television receiving apparatus |
CN103033958A (en) * | 2012-12-04 | 2013-04-10 | 深圳市华星光电技术有限公司 | Liquid crystal display screen and liquid crystal display designed on basis of three-dimensional transistor |
CN103033958B (en) * | 2012-12-04 | 2015-07-22 | 深圳市华星光电技术有限公司 | Liquid crystal display screen and liquid crystal display designed on basis of three-dimensional transistor |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
US6952250B2 (en) | Pressure-welded structure of flexible circuit boards | |
US9063361B2 (en) | Liquid crystal display device with grounded by thermocompression bonding tape and double-side adhesive tape | |
JP2007171877A (en) | Liquid crystal display device, dust protection method and assembly method therefor | |
US5563619A (en) | Liquid crystal display with integrated electronics | |
KR100889534B1 (en) | Liquid Crystal panel fixing structure of Liquid Crystal Display module | |
JP3658127B2 (en) | Display device | |
JPH04220623A (en) | Liquid crystal display unit | |
JP3139601B2 (en) | Liquid crystal display | |
US11839025B2 (en) | Flexible printed circuit and manufacturing method thereof, and displaying device | |
JP2002063958A (en) | Electro-optical device and electronic equipment | |
CN100414404C (en) | Circuit member connection structure and liquid crystal display panel | |
JP3217628B2 (en) | Liquid crystal display | |
JP2001264794A (en) | Method for manufacturing liquid crystal display device | |
JPH06342165A (en) | Liquid crystal display device | |
JP3214996B2 (en) | Manufacturing method of liquid crystal display device | |
JP3336531B2 (en) | Anisotropic conductive member | |
JPH01237685A (en) | Liquid crystal display device | |
JPS60208734A (en) | Liquid crystal display device | |
JP3217633B2 (en) | Liquid crystal display | |
JPH0728079A (en) | Liquid crystal display device and its production | |
JPH0327018A (en) | Transmission type liquid crystal display device | |
JPH0980459A (en) | Liquid crystal display device | |
JPH06148671A (en) | Mounting structure for panel | |
JPH0322743Y2 (en) | ||
JP2001005404A (en) | Display module |