JPH0362016A - Production of liquid crystal display device - Google Patents
Production of liquid crystal display deviceInfo
- Publication number
- JPH0362016A JPH0362016A JP19844189A JP19844189A JPH0362016A JP H0362016 A JPH0362016 A JP H0362016A JP 19844189 A JP19844189 A JP 19844189A JP 19844189 A JP19844189 A JP 19844189A JP H0362016 A JPH0362016 A JP H0362016A
- Authority
- JP
- Japan
- Prior art keywords
- electrode
- electrodes
- strip
- liquid crystal
- shaped
- 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 39
- 238000004519 manufacturing process Methods 0.000 title claims description 25
- 239000000758 substrate Substances 0.000 claims abstract description 50
- 230000002093 peripheral effect Effects 0.000 claims abstract description 49
- 238000000034 method Methods 0.000 claims description 27
- 238000007789 sealing Methods 0.000 claims description 7
- 230000007547 defect Effects 0.000 abstract description 10
- 230000005611 electricity Effects 0.000 abstract description 10
- 230000003068 static effect Effects 0.000 abstract description 10
- 239000000853 adhesive Substances 0.000 abstract description 7
- 230000001070 adhesive effect Effects 0.000 abstract description 7
- 238000003491 array Methods 0.000 abstract 2
- 239000011521 glass Substances 0.000 description 28
- 230000000694 effects Effects 0.000 description 4
- 238000007689 inspection Methods 0.000 description 4
- 238000009413 insulation Methods 0.000 description 2
- 239000000523 sample Substances 0.000 description 2
- 230000001154 acute effect Effects 0.000 description 1
- 239000012790 adhesive layer Substances 0.000 description 1
- 230000002411 adverse Effects 0.000 description 1
- 239000004744 fabric Substances 0.000 description 1
- 239000000835 fiber Substances 0.000 description 1
- 230000001771 impaired effect Effects 0.000 description 1
- 229910003437 indium oxide Inorganic materials 0.000 description 1
- PJXISJQVUVHSOJ-UHFFFAOYSA-N indium(iii) oxide Chemical compound [O-2].[O-2].[O-2].[In+3].[In+3] PJXISJQVUVHSOJ-UHFFFAOYSA-N 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 238000003908 quality control method Methods 0.000 description 1
- 239000000126 substance Substances 0.000 description 1
Landscapes
- Liquid Crystal (AREA)
Abstract
Description
【発明の詳細な説明】
[発明の目的]
(産業上の利用分野)
本発明は、対向する表示電極を備えた2枚の基板間に液
晶を充填(挟持)してなる液晶表示装置の製造方法に関
する。[Detailed Description of the Invention] [Objective of the Invention] (Industrial Application Field) The present invention relates to manufacturing a liquid crystal display device in which liquid crystal is filled (sandwiched) between two substrates each having display electrodes facing each other. Regarding the method.
(従来の技術)
一般に液晶表示装置は、表面に透明な表示電極が形成さ
れた2枚のガラスなどの基板の間に、液晶を挟持した構
造を有している。(Prior Art) Generally, a liquid crystal display device has a structure in which a liquid crystal is sandwiched between two substrates, such as glass, on which transparent display electrodes are formed.
このような液晶表示装置の中で特にドツトマトリックス
タイプの液晶表示装置においては、2枚のガラス基板上
に、複数本の電極からなる平行帯状電極群をそれぞれ形
成し、これらの帯状電極群が互いに直角に交差するよう
に2枚のガラス基板を対向して配置した構造となってい
る。そして限られたデユーティ−比でより多くの画素を
駆動するために、一方の基板上の電極群を、第5図に示
すように、長手方向(配列方向と直角な方向)に2つに
分割された2列の帯状電極群1.2に分け、ガラス基板
3上に所定の間隔を隔てて対向配置させた構造とするこ
とが試みられている。Among such liquid crystal display devices, in particular, in a dot matrix type liquid crystal display device, parallel band-shaped electrode groups each consisting of a plurality of electrodes are formed on two glass substrates, and these band-shaped electrode groups are connected to each other. It has a structure in which two glass substrates are placed facing each other so as to intersect at right angles. In order to drive more pixels with a limited duty ratio, the electrode group on one substrate is divided into two in the longitudinal direction (perpendicular to the arrangement direction) as shown in Figure 5. Attempts have been made to create a structure in which the electrodes are divided into two rows of strip-shaped electrode groups 1.2 and arranged facing each other at a predetermined distance on a glass substrate 3.
なお、それぞれの帯状電極群1.2およびこれらを構成
する各帯状電極1a、 1b、lc、・・・および2a
。In addition, each band-shaped electrode group 1.2 and each band-shaped electrode 1a, 1b, lc, ... and 2a that constitute these
.
2b、2c、・・・は、表示部4と端子部5とから構成
され、各帯状電極1a、lb、1c、 −・・および2
a 、2b、2c、−・・は少なくとも表示部4におい
ては互いに平行に配置されている。2b, 2c, . . . are composed of a display portion 4 and a terminal portion 5, and each of the strip electrodes 1a, lb, 1c, .
a, 2b, 2c, . . . are arranged parallel to each other at least in the display section 4.
(発明が解決しようとする課題)
しかしながらこのように構成されたガラス基板を用いた
液晶表示装置においては、その製造工程で発生する静電
気によって、表示上の欠陥を生ずるという問題があった
。たとえばTN型(ツィステッドネマティック型)液晶
表示装置においては、液晶分子を一定の方向に配向する
ために、その製造過程で基板に配向処理が行われており
、この配向処理方法の一つとして従来からラビング法が
行われている。しかして、このラビング工程でガラス基
板3と化学繊維などの布との摩擦によって静電気が生じ
この静電気によって、間隔が接近して配設されている表
示部4の帯状電極間で微細な火花放電が発生し、放電部
近傍の配向膜の一部が熱的に破壊されることがしばしば
ある。そのため放電部近傍の液晶分子を配向させる力が
低下し、配向不良が生じ表示のコントラストが損われて
いた。(Problems to be Solved by the Invention) However, in a liquid crystal display device using a glass substrate configured in this manner, there is a problem in that display defects are caused by static electricity generated during the manufacturing process. For example, in a TN type (twisted nematic) liquid crystal display device, an alignment process is performed on the substrate during the manufacturing process in order to align the liquid crystal molecules in a fixed direction. The rubbing method has been used since then. During this rubbing process, static electricity is generated due to the friction between the glass substrate 3 and cloth such as chemical fiber, and this static electricity causes minute spark discharges between the strip-shaped electrodes of the display section 4 that are arranged close to each other. This occurs, and a portion of the alignment film near the discharge portion is often thermally destroyed. As a result, the force for aligning liquid crystal molecules in the vicinity of the discharge portion is reduced, resulting in poor alignment and impaired display contrast.
このような欠点を解消するため、第6図に示すように、
ガラス基板上3の帯状電極群1.2の周辺部に共通電極
6を設け、あるいは基板側面に共通電極を設け(特開昭
81−298330号公報記載)、全ての帯状電極群1
.2を短絡させたものを用い、ラビングを行った後、共
通電極6を除去することによって表示欠陥のない液晶表
示装置を製造する方広が開発されている。In order to eliminate these drawbacks, as shown in Figure 6,
A common electrode 6 is provided on the periphery of the band-shaped electrode group 1.2 on the glass substrate 3, or a common electrode is provided on the side surface of the substrate (described in Japanese Patent Application Laid-Open No. 81-298330), and all the band-shaped electrode groups 1.
.. It has been widely developed to manufacture a liquid crystal display device free from display defects by using a short-circuited electrode 2 and removing the common electrode 6 after rubbing.
しかしながら、これらの方法で得られる液晶表示装置に
おいては、帯状電極の形成時点で、たとえば表示部4に
おける隣接する各帯状電極間の短絡の有無を電気的に検
査することができないという問題があった。However, in the liquid crystal display device obtained by these methods, there is a problem that it is not possible to electrically inspect, for example, whether there is a short circuit between adjacent strip electrodes in the display section 4 at the time of forming the strip electrodes. .
本発明はこのような問題を解決するためになされたもの
で、ラビング工程などで発生する静電気による液晶分子
の配向不良が防止され、しかも帯状電極形成時点で適宜
形成された各帯状電極の電気的検査をすることができる
液晶表示装置の製造方法を提供することを目的とする。The present invention has been made to solve these problems, and it is possible to prevent alignment defects of liquid crystal molecules due to static electricity generated in the rubbing process, etc., and also to prevent the electrical conductivity of each band-shaped electrode appropriately formed at the time of forming the band-shaped electrode. An object of the present invention is to provide a method for manufacturing a liquid crystal display device that can be inspected.
[発明の構成]
(課題を解決するための手段)
本発明は、少なくとも一方において表面に2列の平行帯
状電極群が対向して形成された2枚の表示電極付き基板
を、表示電極面を対向させかつ、離隔配置して周辺部を
接着シールし、前記表示電極面間に、液晶を充填(挟持
)してなる液晶表示装置の製造方法において、前記一方
の基板上の前記2列の、jt)状電極群の周辺に共通周
辺電極を、前記4;)状電極群を構成する個々の帯状電
極相互の最短間隔の172以下の間隔を隔てて近接して
設けておくとともに、前記共通周辺電極を接着シールで
隠蔽すること、成るいは前記一方の基板上の前記2列の
帯状電極群の周辺に共通周辺電極を設け、前記帯状電極
群を構成する一本の帯状電極もしくはその帯状電極の長
手方向延長線上に対向して配置された帯状電極のいずれ
か一方を、前記共通周辺電極に接続するとともに、他方
の帯状電極を、隣接する帯状電極との間隔よりも狭い間
隔を隔てて前記共通周辺電極に近接するように配置し、
かつこのような電極配置を前記帯状電極群の配列方向に
沿って交互に繰返した構成としておくとともに、前記共
通周辺電極を接着シールで隠蔽することを特徴とする液
晶表示装置の製造方法である。[Structure of the Invention] (Means for Solving the Problems) The present invention provides two substrates with display electrodes, each of which has two rows of parallel strip-shaped electrode groups facing each other on at least one surface thereof. In the method for manufacturing a liquid crystal display device, the two rows on the one substrate are arranged facing each other and spaced apart, adhesive-sealing the peripheral portions, and filling (sandwiching) liquid crystal between the display electrode surfaces. A common peripheral electrode is provided near the periphery of the jt)-shaped electrode group at a distance of 172 or less, which is the shortest distance between the individual strip-shaped electrodes constituting the above-mentioned 4;)-shaped electrode group, and the common peripheral electrode is Hiding the electrode with an adhesive seal, or providing a common peripheral electrode around the two rows of band-shaped electrode groups on the one substrate, and forming one band-shaped electrode constituting the band-shaped electrode group or its band-shaped electrode. One of the band-shaped electrodes arranged facing each other on the longitudinal extension line is connected to the common peripheral electrode, and the other band-shaped electrode is connected to the common peripheral electrode at a distance narrower than the distance between the adjacent band-shaped electrodes. placed close to the common peripheral electrode,
The method for manufacturing a liquid crystal display device is characterized in that such electrode arrangement is alternately repeated along the arrangement direction of the band-shaped electrode group, and the common peripheral electrode is hidden with an adhesive seal.
(作用)
上記構成の表示電極付き基板を用いることにより、基板
のラビング工程などで生じた静電気の帯電によって、基
板上に形成された帯状電極群の隣接帯状電極間に電位差
が生じた場合、表示部における隣接帯状電極間隔よりも
、共通周辺電極を経由した端子部における帯状電極間隔
の方が小さいため、共通周辺電極との間隙で放電が発生
し、表示部での放電の発生およびこれに起因する液晶の
配向不良が防止される。また隣接する帯状電極間は電気
的に絶縁され、隣接する帯状電極は相互に独立している
ので、各帯状電極間の短絡や断線などの電気的検査を行
うことができる。(Function) By using the display electrode-equipped substrate with the above configuration, if a potential difference occurs between adjacent strip electrodes of the strip electrode group formed on the substrate due to static electricity generated during the substrate rubbing process, the display Since the interval between adjacent strip electrodes in the terminal section via the common peripheral electrode is smaller than the interval between adjacent strip electrodes in the terminal section, discharge occurs in the gap with the common peripheral electrode, and discharge occurs in the display section and is caused by this. This prevents poor alignment of liquid crystals. Further, since adjacent strip electrodes are electrically insulated and are independent from each other, electrical inspections such as short circuits and disconnections between strip electrodes can be performed.
(実施例) 以下、本発明の実施例を図面に基いて説明する。(Example) Embodiments of the present invention will be described below with reference to the drawings.
第1図は本発明に係る製造方法の一実施例において用い
る表示電極付き基板を拡大して示す平面図である。FIG. 1 is an enlarged plan view showing a substrate with display electrodes used in an embodiment of the manufacturing method according to the present invention.
周知のように、液晶表示装置は対向する面に、たとえば
ITO膜(酸化インジウム被膜)によって透明表示電極
がそれぞれ形成された2枚のガラス基板を、所定の間隔
をおいて対向配置させかつ、これらのガラス基板の周縁
部を接着層シールによって固着し、形成した間隙に液晶
を充填(挟持)させた構造を成している。As is well known, in a liquid crystal display device, two glass substrates each having a transparent display electrode formed of, for example, an ITO film (indium oxide film) on opposing surfaces are arranged facing each other at a predetermined distance. The glass substrate has a structure in which the peripheral edge of the glass substrate is fixed with an adhesive layer seal, and the gap formed is filled (sandwiched) with liquid crystal.
本発明においては、少くとも一方の表示電極付き基板と
して、透明な表示電極が以下に示すように構成、具備し
たガラス基板を用いる。すなわち、第1図に示すように
、ガラス基板3面上に複数本の帯状電極11a、llb
、lie、・・・が最短距離で30μの間隔(D)を隔
て、かつ少なくとも表示部4において平行に配置され、
第1列の帯状電極群11を構成している。また上記帯状
電極群11の各帯状電極11a。In the present invention, a glass substrate having a transparent display electrode configured and provided as shown below is used as at least one display electrode-equipped substrate. That is, as shown in FIG.
, lie, .
This constitutes a first row of band-shaped electrode groups 11. Also, each strip electrode 11a of the strip electrode group 11.
11b、11c、・・・と20μの間隔(E)をおいて
複数本の帯状電極12a、12b、12c、・・・がそ
れぞれ対向配置され、これらの帯状電極12a、12b
、12c、・・・によって第2列の帯状電極群12が構
成されている。A plurality of strip electrodes 12a, 12b, 12c, .
, 12c, . . . constitute a second row of strip-shaped electrode group 12.
さらに、前記ガラス基板3の周辺部には、前記2列の帯
状電極群11.12の各帯状電極11a、llb、1l
C1・・・および12a、12b、12c、・・・の端
子部とそれぞれ8μの間隔(H)をおいて、コの字状の
共通周辺電極13が、ITO膜によって形成されている
。ここでの間隔(H)と各帯状電極11a、llb、l
lc、・・・および12a、 12b、 12c、−・
・の間隔(D)と帯状電極群11.12の間隔(E)と
の関係は(D) >(E) >(H)に設定されている
。Further, on the periphery of the glass substrate 3, each strip electrode 11a, llb, 1l of the two rows of strip electrode groups 11.12 is provided.
A U-shaped common peripheral electrode 13 is formed of an ITO film at an interval (H) of 8 μm from the terminal portions of C1 . . . and 12a, 12b, 12c, . The spacing (H) here and each strip electrode 11a, llb, l
lc, ... and 12a, 12b, 12c, --
The relationship between the interval (D) and the interval (E) between the strip electrode groups 11 and 12 is set as (D) > (E) > (H).
このように構成されたガラス基板3を用いた液晶表示装
置の製造工程においては、たとえばラビングによる配向
処理の際、摩擦により発生した静電気が帯状電極に帯電
し、配列方向に隣接する帯状電極間、たとえばllaと
llbとの間に電位差が生じた場合、帯状電極の表示部
相互の間隔D(30μ)よりも各帯状電極の端子部と共
通周辺電極13との間の距離たとえばPAIP^2の和
2XI(16μ)の方が小さくなるので、帯状電極11
a、11b端子部と共通周辺電極13との間の2か所の
間隙で放電が発生する。In the manufacturing process of a liquid crystal display device using the glass substrate 3 configured in this way, for example, during alignment treatment by rubbing, static electricity generated by friction is charged on the strip electrodes, and between the strip electrodes adjacent in the arrangement direction, For example, when a potential difference occurs between lla and llb, the distance between the terminal portion of each strip electrode and the common peripheral electrode 13, for example, the sum of PAIP^2, is greater than the distance D (30 μ) between the display portions of the strip electrodes. 2XI (16μ) is smaller, so the strip electrode 11
Discharge occurs in two gaps between the terminals a and 11b and the common peripheral electrode 13.
また長手方向に隣接する帯状電極、たとえばllaと1
2c間についても、表示部相互の間隔Eよりも共通周辺
電極13を経由した帯状電極端子部相互の間隔の和2c
の方が小さくなるので、各帯状電極11a、 12aと
共通周辺電極13との間の2か所PA。Also, longitudinally adjacent strip electrodes, for example lla and 1
2c, the sum of the distances between the strip electrode terminal portions via the common peripheral electrode 13 is greater than the distance E between the display portions, 2c.
Since PA is smaller, there are two PAs between each strip electrode 11a, 12a and the common peripheral electrode 13.
とPlhの間隙で放電が発生する。A discharge occurs in the gap between Plh and Plh.
このように表示電極付きされたガラス基板においては、
帯状電極群11,12の表示部での放電およびこれに起
因する液晶の配向力の低下が防止され、表示欠陥の生じ
る恐れも全面的に解消する。In the glass substrate equipped with display electrodes in this way,
Discharge in the display portion of the band-shaped electrode groups 11 and 12 and a decrease in the alignment force of the liquid crystal caused by this are prevented, and the possibility of display defects is completely eliminated.
また本実施例の表示電極付きガラス基板の場合は、ガラ
ス基板3面上に形成された帯状電極群11.12を構成
する全ての・(;)状電極11a、12aなどが電気的
にそれぞれ独立しているため、プローブを用いるなどの
方法で、配列方向および長手方向に隣接する各シi)状
電極間の短絡や断線などの電気的険査を容易に行うこと
ができる。しかもこのノ(通周辺電極13部は接着シー
ルの工程で隠蔽するため、」(通周辺電極13を完全に
除去する面倒な工程が不要になるばかりでなく、使用す
る段階での電気的な悪影響も防止される。In addition, in the case of the glass substrate with display electrodes of this embodiment, all the (;)-shaped electrodes 11a, 12a, etc. that constitute the band-shaped electrode group 11.12 formed on the surface of the glass substrate 3 are electrically independent from each other. Therefore, it is possible to easily conduct electrical inspections such as short circuits and disconnections between the respective Si-shaped electrodes adjacent in the arrangement direction and the longitudinal direction by using a method such as using a probe. Moreover, since the 13 parts of the conductive peripheral electrodes are hidden during the adhesive sealing process, not only does the troublesome process of completely removing the conductive peripheral electrodes 13 become unnecessary, but also there is no adverse electrical effect during use. is also prevented.
次に本発明に係る他の製造方法を説明する。第2図は使
用する表示電極付きガラス基板の電極配列(構成)を平
面的に示したものである。Next, another manufacturing method according to the present invention will be explained. FIG. 2 is a plan view showing the electrode arrangement (configuration) of the glass substrate with display electrodes used.
この実施例においては、複数本の帯状電極11a、ll
b’、llc’ 、・・・、12a’、12b’、12
c’、・・・が、最も短いところで30μの間隔(D)
を隔てかつ少なくとも表示部において平行に配置されて
構成された2列の帯状電極群11’ 、12’が、各帯
状電極の表示部4がそれぞれ20μの間隔(E)を隔て
て対向するように配置されている。In this embodiment, a plurality of strip electrodes 11a, ll
b', llc', ..., 12a', 12b', 12
c',... are 30μ apart at the shortest point (D)
Two rows of strip electrode groups 11' and 12' are arranged parallel to each other at least in the display section, with the display section 4 of each strip electrode facing each other with an interval (E) of 20 μ. It is located.
またガラス基板3周辺部には、共通周辺電極13゛がI
TO膜によって形成されている。そして第1列の帯状電
極群IFのたとえば左から奇数番「1の帯状電極11a
’、lIc’、・・・およびこれらの電極11a’、l
le’、・・・と対向しない第2列の帯状電極群12°
の偶数番口の帯状電極12b’、12d’、・・・は、
それぞれ端子部において共通周辺電極H”に接続され、
これら以外の電極すなわち第1列の帯状電極群1Fの偶
数番口の電極11b’、lId’・・・および第2列の
帯状電極群12°の奇数番目の電極12a’、12c’
・・・は、それぞれの端子部と共通周辺電極13’ と
の間に10μの間隔(11〉を隔てて近接配置されてい
る。Further, a common peripheral electrode 13' is located around the glass substrate 3.
It is formed of a TO film. Then, for example, the odd numbered “1” strip electrode 11a from the left in the first row of strip electrode group IF.
', lIc', ... and these electrodes 11a', l
12° of the second row of band-shaped electrodes not facing le',...
The even-numbered strip electrodes 12b', 12d', . . .
Each is connected to a common peripheral electrode H'' at a terminal portion,
Electrodes other than these, that is, even-numbered electrodes 11b', lId'... of the first row of strip-shaped electrode groups 1F, and odd-numbered electrodes 12a', 12c' of the second row of strip-shaped electrode groups 12°
... are arranged close to each other with an interval of 10μ (11〉) between each terminal portion and the common peripheral electrode 13'.
この場合も前記第1の実施例と同様に、間隔(11)と
各舟状電極11a”、llb’・・・および12a’、
12b’、・・・の間隔(D)と舟状電極群11’、1
2°の間隔(E)との関係は(D) > (E) >
(H)に設定されている。In this case as well, as in the first embodiment, the interval (11) and each boat-shaped electrode 11a'', llb'... and 12a',
12b',... and the spacing (D) of the boat-shaped electrode groups 11', 1
The relationship with the 2° interval (E) is (D) > (E) >
(H).
このように構成された表示電極付き基板を用いた場合、
たとえばラビング工程で生じた静電気によって、配列方
向に隣接する帯状電極間たとえば1番目の電極11a’
と2番目の電極11b°間に電位差が生じると、最も絶
縁間隔が狭い電極11b″の端子部と共通周辺電極13
°との間PA2で放電が発生する。また長手方向に隣接
する帯状電極間、たとえば第1列の第1番目の電極11
a’と第2列の第1番目の電極12a’との間に電位差
が生じた場合には、最も絶縁間隔が狭い第2列第1番目
の電極12a′の端子部と共通周辺電極13°との間P
B+で放電が発生する。そしてラビング処理が終り接着
シールの工程が完了した後は、ガラス基板3端而を切除
するなどの方法で共通周辺電極13°を分離し、前記帯
状電極群11’、12’と共通周辺電極13°とを電気
的に接離することによって、表示欠陥の生じない液晶表
示装置構成用の表示電極付き基板が得られる。しかも前
記表示電極の構成では配列方向および長手方向に隣接す
る帯状電極間は、いずれも・絶縁され電気的に独立して
いるので、共通周辺電極13°を除去することなしに各
帯状電極の電気的な検査を行うことができ、この電気的
な検査に当り、帯状電極の半数が共通周辺電極13゛に
接続しているため、検査用プローブ本数を1/2に低減
できる。When using a substrate with display electrodes configured in this way,
For example, static electricity generated during the rubbing process may cause damage to occur between adjacent strip-shaped electrodes in the arrangement direction, for example, the first electrode 11a'.
When a potential difference occurs between the electrode 11b and the second electrode 11b, the terminal part of the electrode 11b'' with the narrowest insulation interval and the common peripheral electrode 13
A discharge occurs in PA2 between . Also, between longitudinally adjacent strip electrodes, for example, between the first electrodes 11 in the first row.
When a potential difference occurs between a' and the first electrode 12a' of the second row, the terminal part of the first electrode 12a' of the second row, which has the narrowest insulation interval, and the common peripheral electrode 13° Between P
A discharge occurs at B+. After the rubbing process is completed and the adhesive sealing process is completed, the common peripheral electrode 13° is separated by a method such as cutting off the end of the glass substrate 3, and the common peripheral electrode 13 By electrically connecting and separating the two electrodes, it is possible to obtain a substrate with display electrodes for configuring a liquid crystal display device that does not cause display defects. Moreover, in the configuration of the display electrodes, since the strip electrodes adjacent in the arrangement direction and the longitudinal direction are both insulated and electrically independent, each strip electrode can be electrically connected without removing the common peripheral electrode 13°. In this electrical test, since half of the strip electrodes are connected to the common peripheral electrode 13', the number of test probes can be reduced to 1/2.
また前の実施例と同様に、共通周辺電極13°部は接着
シールの工程で隠蔽するため、共通周辺電極13°を完
全に除去する面倒な工程が不要になるばかりでなく、使
用する段階での電気的な悪影響も防止される。In addition, as in the previous embodiment, the 13° portion of the common peripheral electrode is hidden during the adhesive sealing process, which not only eliminates the troublesome process of completely removing the 13° common peripheral electrode, but also eliminates the need for the troublesome process of completely removing the 13° common peripheral electrode. The negative electrical effects of this are also prevented.
さらに第3図は他の実施例において用いた表示電極付き
ガラス基板を平面的に示したもので、帯状電極f!$1
1’、12’をそれぞれ威す帯状電極中一部の帯状電極
11a’、11c’、−・・や12b’、12d’、−
・・の端子部と共通周辺電極13’とを接続してあり基
本的な構成および作用、効果は第2図に示した場合と同
様である。しかし、この例では・島状電極群11’、1
2をそれぞれ成す帯状電極11a’llb’、11c’
、−・・や12a、12b’、12c’、・・・の端子
部および共通周辺電極13がガラス基板面より外側に突
設された形に構成しである。したがって、所要の液晶表
示装置を製造する工程、つまり表示電極付き面にラビン
グ処理など施し接着シールの工程を完了した後、前記ガ
ラス基板面より外側に突設している帯状電極11aなど
の端子部および共通周辺電極13’を、ガラス基板3端
而を切除するなどの方法で分離する。こうして帯状電極
群11’、12’と共通周辺電極13°とを電気的に接
離することによって、表示欠陥の生じない液晶表示装置
構成用の表示電極付き基板が得られる。なお、これらの
実施例において、第4図に示すように、共通周辺電極i
3もしくは13′ と帯状電極電極端子部と最も近接す
る部位を鋭角的に突出させ、この部位と帯状電極端子部
との間での放電を発生し易くしておくことが望ましい。Furthermore, FIG. 3 is a plan view of a glass substrate with display electrodes used in another example, and shows a band-shaped electrode f! $1
Some of the strip electrodes 11a', 11c', -- and 12b', 12d', -- among the strip electrodes 1', 12', respectively.
. . and the common peripheral electrode 13' are connected, and the basic structure, operation, and effect are the same as those shown in FIG. 2. However, in this example, the island-like electrode groups 11', 1
2, the strip-shaped electrodes 11a'llb' and 11c' respectively
, 12a, 12b', 12c', . . . and the common peripheral electrode 13 are configured to protrude outward from the surface of the glass substrate. Therefore, after completing the process of manufacturing a required liquid crystal display device, that is, the process of applying a rubbing process to the surface with display electrodes and adhesion sealing, the terminal portions such as the strip-shaped electrodes 11a protruding outward from the surface of the glass substrate are completed. Then, the common peripheral electrode 13' is separated by cutting off the glass substrate 3 or the like. By electrically connecting and separating the band-shaped electrode groups 11', 12' and the common peripheral electrode 13° in this manner, a substrate with display electrodes for a liquid crystal display device structure that does not cause display defects can be obtained. In addition, in these embodiments, as shown in FIG.
3 or 13' and the region closest to the strip-shaped electrode terminal portion should protrude at an acute angle to facilitate the generation of discharge between this region and the strip-shaped electrode terminal portion.
また上記実施例では対向配置された2枚のガラス基板3
,3のうち一方の基板についてのみ説明したが、必要に
応じてこれと対向配置された他方の基板も同様に構成す
ることができる。さらにガラス専板面に複数の個別パタ
ーンを配置した多面取り方式の液晶表示装置の製造にも
適用できる。In addition, in the above embodiment, two glass substrates 3 are arranged facing each other.
, 3 has been described, but the other substrate disposed opposite thereto may be configured in the same manner if necessary. Furthermore, it can also be applied to the manufacture of multi-panel type liquid crystal display devices in which a plurality of individual patterns are arranged on a dedicated glass surface.
[発明の効果]
以上説明したように本発明の液晶表示装置の製造方法に
よれば、製造工程において電極の短絡などの電気的検査
が可能であるばかりでなく、製造工程で生じた静電気に
よって液晶分子の配向不良が発生することもなくなり、
表示欠陥の発生が防上される。しかも、製造工程におい
て表示電極を成す各帯状電極間の短絡などの電気的な検
査も容易に行い得るので、製造歩留りや品質管理などの
点でも多くの利点をもたらす。[Effects of the Invention] As explained above, according to the method for manufacturing a liquid crystal display device of the present invention, it is not only possible to conduct electrical inspections such as short circuits of electrodes during the manufacturing process, but also to check whether the liquid crystal display is damaged due to static electricity generated during the manufacturing process. This eliminates the occurrence of molecular misalignment,
The occurrence of display defects is prevented. Furthermore, electrical inspections such as short circuits between the strip electrodes constituting the display electrodes can be easily performed during the manufacturing process, resulting in many advantages in terms of manufacturing yield and quality control.
第1図は本発明に係る製造方法で使用する一方のガラス
基板例の平面図、第2図および第3図は他の実施例て使
用した一方のガラス基板の平面図、第4図は本発明に係
る製造方法で用いる基板の一部拡大図、第5図および第
6図は、それぞれ促来の液晶表示装置の製造に使用する
基板の平面図である。
3・・・ガラス基板
11.12.ll’、12°・・・帯状電極群+1a、
Ilb、llc (Ila’、Ilb’、lle’)−
帯状電極12a、 12b、 12c、 (12a’
、 12b’ 、 12c’ )−帯状電極13.13
’・・・共通周辺電極
14・・・接着シールFIG. 1 is a plan view of one glass substrate example used in the manufacturing method according to the present invention, FIGS. 2 and 3 are plan views of one glass substrate used in other examples, and FIG. FIGS. 5 and 6, which are partially enlarged views of the substrate used in the manufacturing method according to the invention, are plan views of the substrate used in the manufacturing of the conventional liquid crystal display device, respectively. 3...Glass substrate 11.12. ll', 12°...Strip electrode group +1a,
Ilb, llc (Ila', Ilb', lle')-
Strip electrodes 12a, 12b, 12c, (12a'
, 12b', 12c') - strip electrode 13.13
'... Common peripheral electrode 14... Adhesive seal
Claims (2)
極群が対向して形成された2枚の表示電極付き基板を、
表示電極面を対向させかつ、離隔配置して周辺部を接着
シールし、前記表示電極面間に、液晶を充填してなる液
晶表示装置の製造方法において、 前記一方の基板上の前記2列の帯状電極群の周辺に共通
周辺電極を、前記帯状電極群を構成する個々の帯状電極
相互の最短間隔の1/2以下の間隔を隔てて近接して設
けておくとともに、前記共通周辺電極を隠蔽するように
接着シールすることを特徴とする液晶表示装置の製造方
法。(1) Two display electrode-equipped substrates each having two rows of parallel strip-shaped electrode groups facing each other on the surfaces of at least one of them,
In the method for manufacturing a liquid crystal display device, the display electrode surfaces are opposed and spaced apart, the peripheral portion is adhesive-sealed, and liquid crystal is filled between the display electrode surfaces, the two rows on the one substrate. A common peripheral electrode is provided around the band-shaped electrode group at a distance of 1/2 or less of the shortest distance between the individual band-shaped electrodes constituting the band-shaped electrode group, and the common peripheral electrode is hidden. 1. A method for manufacturing a liquid crystal display device, which comprises adhesively sealing the display device so as to seal the liquid crystal display device.
極群が対向して形成された2枚の電極付き基板を、表示
電極面を対向させかつ、離隔配置して周辺部を接着シー
ルし、前記表示電極面間に、液晶を充填してなる液晶表
示装置の製造方法において、 前記一方の基板上の前記2列の帯状電極群の周辺に共通
周辺電極を設け、前記帯状電極群を構成する一本の帯状
電極またはその帯状電極の長手方向延長線上に対向して
配置された帯状電極のいずれか一方を、前記共通周辺電
極に接続するとともに、他方の帯状電極を、隣接する配
置された帯状電極相互の間隔よりも狭い間隔を隔てて前
記共通周辺電極に近接配置し、かつこの電極配置を前記
帯状電極群の配列方向に沿って交互に繰返した構成とし
ておくとともに、前記共通周辺電極を隠蔽するように接
着シールすることを特徴とする液晶表示装置の製造方法
。(2) Two substrates with electrodes each having two rows of parallel strip-shaped electrode groups formed on at least one surface facing each other are arranged with display electrode surfaces facing each other and spaced apart, and the peripheral portions are adhesive-sealed, and the peripheral portions are adhesive-sealed. In the method of manufacturing a liquid crystal display device in which a liquid crystal is filled between display electrode surfaces, a common peripheral electrode is provided around the two rows of strip electrode groups on the one substrate, and one of the strip electrode groups constituting the strip electrode group is Either one of the strip-shaped electrodes of the book or strip-shaped electrodes arranged facing each other on the longitudinal extension line of the strip-shaped electrodes is connected to the common peripheral electrode, and the other strip-shaped electrode is connected to the strip-shaped electrode arranged adjacently. The common peripheral electrodes are arranged close to each other at intervals narrower than the mutual intervals, and this electrode arrangement is alternately repeated along the arrangement direction of the band-shaped electrode group, and the common peripheral electrodes are hidden. 1. A method for manufacturing a liquid crystal display device, which comprises adhesively sealing the display device.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19844189A JPH0362016A (en) | 1989-07-31 | 1989-07-31 | Production of liquid crystal display device |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
JP19844189A JPH0362016A (en) | 1989-07-31 | 1989-07-31 | Production of liquid crystal display device |
Publications (1)
Publication Number | Publication Date |
---|---|
JPH0362016A true JPH0362016A (en) | 1991-03-18 |
Family
ID=16391140
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
JP19844189A Pending JPH0362016A (en) | 1989-07-31 | 1989-07-31 | Production of liquid crystal display device |
Country Status (1)
Country | Link |
---|---|
JP (1) | JPH0362016A (en) |
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
JP2007156346A (en) * | 2005-12-08 | 2007-06-21 | Nanox Corp | Liquid crystal panel |
US7511793B2 (en) | 2001-07-18 | 2009-03-31 | Samsung Electronics Co., Ltd. | Liquid crystal display having additional signal lines to define additional pixel regions |
-
1989
- 1989-07-31 JP JP19844189A patent/JPH0362016A/en active Pending
Cited By (2)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US7511793B2 (en) | 2001-07-18 | 2009-03-31 | Samsung Electronics Co., Ltd. | Liquid crystal display having additional signal lines to define additional pixel regions |
JP2007156346A (en) * | 2005-12-08 | 2007-06-21 | Nanox Corp | Liquid crystal panel |
Similar Documents
Publication | Publication Date | Title |
---|---|---|
KR100281058B1 (en) | Liquid Crystal Display | |
KR940006156B1 (en) | Method of manufacturing liquid crystal display device | |
US8072569B2 (en) | Fringe field switching liquid crystal display panel | |
JP4068518B2 (en) | Display device substrate and manufacturing method thereof | |
WO2008015808A1 (en) | Active matrix substrate, display, and active matrix substrate inspecting method | |
JPH10206867A (en) | Liquid crystal display device | |
JP5053479B2 (en) | Matrix array substrate and manufacturing method thereof | |
JP2006215302A (en) | Liquid crystal display panel | |
JP2521752B2 (en) | Liquid crystal display | |
US20120169976A1 (en) | Display panel and method thereof | |
KR19990029397A (en) | Array substrate of display device, liquid crystal display device with array substrate and array substrate manufacturing method | |
JPS63106788A (en) | Manufacture of active matrix driven-type device | |
JPH0362016A (en) | Production of liquid crystal display device | |
KR20020054851A (en) | Liquid Crystal Display Device | |
KR100532866B1 (en) | LCD module for tilde liquid crystal display | |
JP3273905B2 (en) | Active matrix substrate for liquid crystal display device and inspection method therefor | |
JP2001183614A (en) | Display element and inspection method therefor | |
JPH09113562A (en) | Inspecting method for liquid crystal matrix display panel | |
JPH09138422A (en) | Liquic crystal display device and its inspecting method | |
JPH0381735A (en) | Active matrix type liquid crystal display panel | |
JPH02221927A (en) | Manufacture of liquid crystal display device | |
JP2001005016A (en) | Liquid crystal device and method for inspecting it | |
JPH08313922A (en) | Liquid crystal display device | |
JP3272137B2 (en) | Liquid crystal display | |
JP2000098426A (en) | Active matrix substrate and liquid crystal display device using this substrate |