JPS61252534A - Liquid crystal display device - Google Patents
Liquid crystal display deviceInfo
- Publication number
- JPS61252534A JPS61252534A JP9367085A JP9367085A JPS61252534A JP S61252534 A JPS61252534 A JP S61252534A JP 9367085 A JP9367085 A JP 9367085A JP 9367085 A JP9367085 A JP 9367085A JP S61252534 A JPS61252534 A JP S61252534A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- crystal display
- display device
- wiring
- display element
- 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.)
- Granted
Links
Landscapes
- Liquid Crystal (AREA)
- Devices For Indicating Variable Information By Combining Individual Elements (AREA)
Abstract
(57)【要約】本公報は電子出願前の出願データであるた
め要約のデータは記録されません。(57) [Summary] This bulletin contains application data before electronic filing, so abstract data is not recorded.
Description
【発明の詳細な説明】
〔発明の利用分野〕
本発明は各種文字あるいは図形表示用として広範囲に使
用されている液晶表示装置に係わシ、特に液晶表示素子
を構成する絶縁性基板に金属配線を形成し、これに直接
液晶駆動用素子を接続したいわゆるチップオングラスタ
イプの液晶表示装置に関するものである０
〔発明の背景〕
従来、この種の液晶表示装置においては、例えば特開昭
５６−５０３６８号会報に示されているように一般に液
晶表示素子を構成するガラス基板上に金属配線を形成し
、その上に液晶駆動用のＬＳＩ素子を半田接続する、い
わゆるフェースダウンポンディングして構成されている
。[Detailed Description of the Invention] [Field of Application of the Invention] The present invention relates to a liquid crystal display device that is widely used for displaying various characters or graphics, and particularly relates to a liquid crystal display device that uses metal wiring on an insulating substrate constituting a liquid crystal display element. This invention relates to a so-called chip-on-glass type liquid crystal display device in which a liquid crystal driving element is directly connected to the liquid crystal display device. As shown in Bulletin No. 50368, metal wiring is generally formed on a glass substrate constituting a liquid crystal display element, and an LSI element for driving the liquid crystal is soldered onto the metal wiring, which is so-called face-down bonding. ing.
しかしながら、近年では液晶表示画素数の増加に伴ない
、１個のガラス基板に複数個のＬＳＩ素子を接続する必
要が生じておシ、この場合、複数個のＬＳＩ素子相互間
を電気的に接続する際、配線交差を行なう必要上、いわ
ゆる多層配線構造が不可欠となる。However, in recent years, with the increase in the number of liquid crystal display pixels, it has become necessary to connect multiple LSI elements to one glass substrate. When doing so, a so-called multilayer wiring structure is essential because of the need for wiring crossings.
本発明はこのような事情に鑑みてなされたものであシ、
その目的は多層配線構造を低コストで実現可能にした液
晶表示装置を提供することにある。The present invention has been made in view of these circumstances.
The purpose is to provide a liquid crystal display device that can realize a multilayer wiring structure at low cost.
多層配線の一般的な構造線、第１配線層に絶縁層を設け
、接続を必要とする個所にスルーホールを形成し、引き
続き第２配線層を形成するものであるが、本発明は第１
配線層として液晶表示素子の電極として用いる透明導電
膜を用いたものである０
〔発明の実施例〕
次に図面を用いて本発明の実施例を詳細に説明する。The general structural line of multilayer wiring is to provide an insulating layer in the first wiring layer, form through holes at locations where connections are required, and then form the second wiring layer, but the present invention
A transparent conductive film used as an electrode of a liquid crystal display element is used as a wiring layer. [Embodiments of the Invention] Next, embodiments of the present invention will be described in detail with reference to the drawings.
第１図は本発明の一実施例を示す断面図、第２図はその
多層配線構造を示す拡大断面図である。FIG. 1 is a sectional view showing one embodiment of the present invention, and FIG. 2 is an enlarged sectional view showing its multilayer wiring structure.
第１図において、１は液晶表示素子を構成する上板ガラ
ス基板、２はその下板ガラス板である。３は上板ガラス
基板１に形成したコモン電極、４は下板ガラス基板２に
形成したセグメント電極を示し、その間に液晶５が注入
されてシール材６によって封止されている。In FIG. 1, reference numeral 1 indicates an upper glass substrate constituting a liquid crystal display element, and reference numeral 2 indicates a lower glass plate thereof. Reference numeral 3 indicates a common electrode formed on the upper glass substrate 1, and 4 indicates a segment electrode formed on the lower glass substrate 2, between which liquid crystal 5 is injected and sealed with a sealing material 6.
一方、７は半導体チップからなる液晶駆動用ＬＳＩ素子
であシ、とのＬＳＩ素子７は下板ガラス基板２上にセグ
メント電極４またはコモン電極３に接続して形成された
第１の接続用配線８上に半田９によって機械的に固着さ
れるとともに電気的に接続されている。また１０はＬＳ
Ｉ素子７の保ｉ用の樹脂コート材、１１は第１の接続用
配線８の保護用の樹脂コート材である。１２は下板ガラ
ス基板２上に配設される複数個のＬＳＩ！７相互間に接
続して形成された第２の接続用配線であシ、この第２の
接続用配線１２は前記コモン電極３、セグメント電極４
と同一構成部材により第１の接続用配線８の下層に絶縁
膜１３を介して形成されている。またこの多層配線構造
は第２図に示すように必要に応じて第２の接続用配線１
２上に第１の接続用配線８がＡ部においてスルーホール
接続されている。On the other hand, 7 is a liquid crystal driving LSI element made of a semiconductor chip, and the LSI element 7 is connected to the segment electrode 4 or the common electrode 3 on the lower glass substrate 2 and is connected to the first connection wiring 8. It is mechanically fixed and electrically connected by solder 9 on the top. Also 10 is LS
A resin coating material 11 is used to protect the I element 7, and a resin coating material 11 is used to protect the first connection wiring 8. 12 is a plurality of LSIs arranged on the lower glass substrate 2! 7, and this second connection wire 12 is connected to the common electrode 3 and the segment electrode 4.
It is formed of the same structural members as below the first connection wiring 8 with an insulating film 13 interposed therebetween. In addition, this multilayer wiring structure can be used as shown in FIG.
A first connection wiring 8 is connected to the portion A through a through-hole on the portion A.
ここで、第１の接続用配線８は半田９とぬれ性の良好な
金属例えばＮ１からなる厚さ約０．５ μｍのＮｉ金属
膜から形成されておシ、第２の接続用配線１２はコモン
電極３．セグメント電極４と同一部材からなる透明導電
膜、すなわちＩｎｚｏｓ。Here, the first connection wiring 8 is made of a metal having good wettability with the solder 9, such as N1, and is made of a Ni metal film with a thickness of about 0.5 μm, and the second connection wiring 12 is made of a Ni metal film with a thickness of about 0.5 μm. Common electrode 3. A transparent conductive film made of the same material as the segment electrode 4, that is, Inzos.
５ｎ２０３ 等の金属酸化物からなる厚さ約０．１μ
ｍの透明導電膜により形成されている。また、絶縁膜１
３は厚さ約０．３μｍのポリイミド系樹脂膜、第１の接
続用配線８を保護する樹脂コート材１１は厚さ約２μｍ
のポリイミド系樹脂膜によりそれぞれ形成されている。Approximately 0.1μ thick made of metal oxide such as 5n203
It is formed of a transparent conductive film of m. In addition, insulating film 1
3 is a polyimide resin film with a thickness of about 0.3 μm, and a resin coating material 11 that protects the first connection wiring 8 has a thickness of about 2 μm.
They are each formed from a polyimide resin film.
また、このように構成される液晶表示装置を実現するた
めには、例えば次のようなプロセスを行えば良い。すな
わち、まず最初に第２の接続用配線１２は液晶表示素子
のセグメント電極４の形成時に同時に形成する。次いで
層間絶縁膜１３としてポリイミド樹脂を塗布、焼成し、
第１の接続用配線８と電気的接続を取るために必要な個
所にスルーホールを形成する０次いで第１の接続用配線
８としてのＮｉを蒸着等の成膜方法によりＮｉ金属膜を
形成してフォトリソグラフィ技術により配線形成を行な
い、ＬＳＩ素子７接続部分以外の領域に樹脂コート材１
１の形成を行なった後、通常の液晶表示素子の組立てを
行なう。最後にＬＳＩ素子７の接続を行ない、ＬＳＩ素
子７保護用の樹脂コート材１０をボッティング形成して
完成する。Further, in order to realize a liquid crystal display device configured as described above, the following process may be performed, for example. That is, first, the second connection wiring 12 is formed simultaneously with the formation of the segment electrodes 4 of the liquid crystal display element. Next, polyimide resin is applied as an interlayer insulating film 13 and baked.
Through-holes are formed at necessary locations to establish electrical connection with the first connection wiring 8.Next, a Ni metal film is formed as the first connection wiring 8 by a film-forming method such as vapor deposition. Then, wiring is formed using photolithography technology, and resin coating material 1 is applied to areas other than the connection parts of LSI elements 7.
After forming 1, a normal liquid crystal display element is assembled. Finally, the LSI element 7 is connected, and a resin coating material 10 for protecting the LSI element 7 is formed by botting to complete the process.
以上説明したように本発明によれば、液晶表示素子を構
成する絶縁性基板上に形成する多層金属配線の少なくと
も一層を、液晶表示素子の電極膜と同一な透明導電膜に
よ多構成したことにより、液晶表示装置が低コストで実
現可能となる。また、情報グラフィック液晶表示素子な
ど複数個のＬＳＩ素子を必要とするデバイスについても
チップオングラス化が可能となシ、従来のプリント基板
実装モジュールに比べて軽量、薄形化がはかれるなどの
極めて優れた効果が得られる。As explained above, according to the present invention, at least one layer of the multilayer metal wiring formed on the insulating substrate constituting the liquid crystal display element is made of the same transparent conductive film as the electrode film of the liquid crystal display element. Accordingly, a liquid crystal display device can be realized at low cost. In addition, it is possible to use chip-on-glass for devices that require multiple LSI elements, such as information graphic liquid crystal display elements, and has extremely superior features such as being lighter and thinner than conventional printed circuit board mounted modules. You can get the same effect.
第１図は本発明の一実施例を示す断面図、第２図はその
多層配線構造を示す要部拡大断面図である０
１．２・・・・液晶表示素子を構成するカラス基板、３
，４・・・・電極、５・Φ・・液晶、６・−・・シール
材、７拳・・・液晶駆動用ＬＳＩ素子、８・・・・第１
の接続用配線、９・・・・半田、１０．１１ 拳・・・
樹脂コート材、１２・・・・第２の接続用配線、１３・
・・・絶縁膜。FIG. 1 is a sectional view showing one embodiment of the present invention, and FIG. 2 is an enlarged sectional view of essential parts showing its multilayer wiring structure.
, 4... Electrode, 5... Φ... Liquid crystal, 6... Seal material, 7... LSI element for driving liquid crystal, 8... First
Wiring for connection, 9...Solder, 10.11 Fist...
Resin coating material, 12...Second connection wiring, 13.
...Insulating film.
Claims (1)
多層金属配線を形成し、この金属配線に複数個の液晶駆
動用回路素子を接続してなる液晶表示装置において、前
記多層金属配線の少なくとも一層を、液晶表示素子の電
極を形成する透明導電膜により構成したことを特徴とす
る液晶表示装置。In a liquid crystal display device in which a multilayer metal wiring is formed on an insulating substrate constituting a liquid crystal display element via an insulating film, and a plurality of liquid crystal driving circuit elements are connected to the metal wiring, the multilayer metal wiring is A liquid crystal display device characterized in that at least one layer is constituted by a transparent conductive film forming an electrode of a liquid crystal display element.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60093670A JP2539360B2 (en) | 1985-05-02 | 1985-05-02 | Liquid crystal display |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP60093670A JP2539360B2 (en) | 1985-05-02 | 1985-05-02 | Liquid crystal display |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS61252534A true JPS61252534A (en) | 1986-11-10 |
| JP2539360B2 JP2539360B2 (en) | 1996-10-02 |
Family
ID=14088835
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP60093670A Expired - Lifetime JP2539360B2 (en) | 1985-05-02 | 1985-05-02 | Liquid crystal display |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JP2539360B2 (en) |
Families Citing this family (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| DE10005010C2 (en) | 2000-02-04 | 2002-11-21 | Daimler Chrysler Ag | Method and safety restraint for restraining an occupant in a vehicle seat |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59158179U (en) * | 1983-04-07 | 1984-10-23 | 三洋電機株式会社 | liquid crystal display device |
| JPS59201085A (en) * | 1983-04-30 | 1984-11-14 | 富士通株式会社 | Drive circuit element mounting structure of flat display panel |
| JPS60108822A (en) * | 1983-11-18 | 1985-06-14 | Alps Electric Co Ltd | Terminal connecting method of liquid crystal display element |
-
1985
- 1985-05-02 JP JP60093670A patent/JP2539360B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS59158179U (en) * | 1983-04-07 | 1984-10-23 | 三洋電機株式会社 | liquid crystal display device |
| JPS59201085A (en) * | 1983-04-30 | 1984-11-14 | 富士通株式会社 | Drive circuit element mounting structure of flat display panel |
| JPS60108822A (en) * | 1983-11-18 | 1985-06-14 | Alps Electric Co Ltd | Terminal connecting method of liquid crystal display element |
Also Published As
| Publication number | Publication date |
|---|---|
| JP2539360B2 (en) | 1996-10-02 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| EXPY | Cancellation because of completion of term |