JPS6355524A - Liquid crystal display element - Google Patents
Liquid crystal display elementInfo
- Publication number
- JPS6355524A JPS6355524A JP19816086A JP19816086A JPS6355524A JP S6355524 A JPS6355524 A JP S6355524A JP 19816086 A JP19816086 A JP 19816086A JP 19816086 A JP19816086 A JP 19816086A JP S6355524 A JPS6355524 A JP S6355524A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- electrodes
- electrode
- face
- seal
- 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
- 239000004973 liquid crystal related substance Substances 0.000 title claims abstract description 66
- 239000000758 substrate Substances 0.000 claims description 25
- 239000003566 sealing material Substances 0.000 claims description 13
- 238000007789 sealing Methods 0.000 claims description 6
- 239000002245 particle Substances 0.000 claims description 2
- 230000005611 electricity Effects 0.000 abstract description 17
- 230000003068 static effect Effects 0.000 abstract description 17
- 239000000463 material Substances 0.000 abstract description 3
- 230000007257 malfunction Effects 0.000 abstract description 2
- 210000002858 crystal cell Anatomy 0.000 description 10
- 210000004027 cell Anatomy 0.000 description 4
- 238000000034 method Methods 0.000 description 4
- 239000000126 substance Substances 0.000 description 4
- 230000000694 effects Effects 0.000 description 3
- OKTJSMMVPCPJKN-UHFFFAOYSA-N Carbon Chemical compound [C] OKTJSMMVPCPJKN-UHFFFAOYSA-N 0.000 description 2
- PXHVJJICTQNCMI-UHFFFAOYSA-N Nickel Chemical compound [Ni] PXHVJJICTQNCMI-UHFFFAOYSA-N 0.000 description 2
- 230000002411 adverse Effects 0.000 description 2
- 229910052799 carbon Inorganic materials 0.000 description 2
- 230000000052 comparative effect Effects 0.000 description 2
- 238000010586 diagram Methods 0.000 description 2
- 239000003822 epoxy resin Substances 0.000 description 2
- 239000010419 fine particle Substances 0.000 description 2
- 230000004313 glare Effects 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 229910052751 metal Inorganic materials 0.000 description 2
- 239000002184 metal Substances 0.000 description 2
- 229920000647 polyepoxide Polymers 0.000 description 2
- VYZAMTAEIAYCRO-UHFFFAOYSA-N Chromium Chemical compound [Cr] VYZAMTAEIAYCRO-UHFFFAOYSA-N 0.000 description 1
- 239000003513 alkali Substances 0.000 description 1
- 229910052782 aluminium Inorganic materials 0.000 description 1
- XAGFODPZIPBFFR-UHFFFAOYSA-N aluminium Chemical compound [Al] XAGFODPZIPBFFR-UHFFFAOYSA-N 0.000 description 1
- 229910052804 chromium Inorganic materials 0.000 description 1
- 239000011651 chromium Substances 0.000 description 1
- 239000011248 coating agent Substances 0.000 description 1
- 238000000576 coating method Methods 0.000 description 1
- 230000007547 defect Effects 0.000 description 1
- 238000010828 elution Methods 0.000 description 1
- 239000011521 glass Substances 0.000 description 1
- 239000012535 impurity Substances 0.000 description 1
- AMGQUBHHOARCQH-UHFFFAOYSA-N indium;oxotin Chemical compound [In].[Sn]=O AMGQUBHHOARCQH-UHFFFAOYSA-N 0.000 description 1
- 239000011159 matrix material Substances 0.000 description 1
- 150000002739 metals Chemical class 0.000 description 1
- 229910052759 nickel Inorganic materials 0.000 description 1
- 239000004033 plastic Substances 0.000 description 1
- 230000002265 prevention Effects 0.000 description 1
- 229920005989 resin Polymers 0.000 description 1
- 239000011347 resin Substances 0.000 description 1
- 239000000565 sealant Substances 0.000 description 1
- XOLBLPGZBRYERU-UHFFFAOYSA-N tin dioxide Chemical compound O=[Sn]=O XOLBLPGZBRYERU-UHFFFAOYSA-N 0.000 description 1
- 229910001887 tin oxide Inorganic materials 0.000 description 1
Landscapes
- Liquid Crystal (AREA)
Abstract
Description
【発明の詳細な説明】
［産業上の利用分野］
本発明は、静電気による誤表示をしにくい液晶表示素子
に関するものである。DETAILED DESCRIPTION OF THE INVENTION [Field of Industrial Application] The present invention relates to a liquid crystal display element that is less prone to display errors due to static electricity.
［従来の技術］
液晶表示素子は動作電圧が実効値で１．５〜２■と低い
上、その電極間の抵抗も表示パターンの大きさによって
も異なるが、おおよそ１００Ｍ〜１０００）！Ωと高い
ため、低電圧駆動が可能、低消費電力等の優れた特長を
有しており、現在、幅広い分野で使用されている。[Prior Art] The operating voltage of a liquid crystal display element is as low as an effective value of 1.5 to 2 cm, and the resistance between its electrodes also varies depending on the size of the display pattern, but is approximately 100 M to 1000 m)! Because it has a high Ω, it has excellent features such as low voltage drive and low power consumption, and is currently used in a wide range of fields.
しかし、このような長所を有する液晶表示素子も、外部
かられずかな静電気を与えただけで液晶表示素子が簡単
に点灯してしまい、−旦点灯すると液晶の抵抗が高いた
め、放電に時間がかかり、長時間点灯を持続し、誤表示
となりやすい欠点にもなっていた。However, even with these advantages, the liquid crystal display element easily lights up when just a small amount of static electricity is applied from the outside, and once it is turned on, it takes time to discharge due to the high resistance of the liquid crystal. This also had the disadvantage that it remained lit for a long time, making it prone to display errors.
このため、従来から静電気の対策として、基板の外面に
透明電極を配置し、これをアースすることや液晶中に液
晶の比抵抗を低下させる導電性物質を混入すること等が
提案されている。For this reason, conventional countermeasures against static electricity have been proposed, such as arranging a transparent electrode on the outer surface of the substrate and grounding it, and mixing a conductive substance into the liquid crystal that lowers the specific resistance of the liquid crystal.
［発明の解決しようとする問題点］
しかし、基板の外面に透明電極を配置する方式は、外面
に透明電極を形成するため製造工程が複雑化し生産性が
悪くなる外、アースを充分に取ることが面倒であり、ま
た液晶表示素子の端子部やこの透明電極の形成されてい
ない側の面からの静電気に対しては充分な効果を生じに
くく、充分に静電気による誤動作を防止できないことが
あった。[Problems to be Solved by the Invention] However, the method of disposing transparent electrodes on the outer surface of the substrate complicates the manufacturing process and reduces productivity because the transparent electrodes are formed on the outer surface, and requires sufficient grounding. This is troublesome, and it is difficult to produce a sufficient effect against static electricity from the terminals of the liquid crystal display element or the surface on which this transparent electrode is not formed, and malfunctions caused by static electricity may not be sufficiently prevented. .
また、液晶中に液晶の比抵抗を低下させる導電性物質を
混入する方法は、常に一定の比抵抗を保つ管理が面倒で
あり、かつその混入した物質が分解されたりして液晶表
示素子の使用中に表示欠陥を生じることがあり、その信
頼性に問題があった。In addition, the method of mixing a conductive substance that lowers the resistivity of the liquid crystal into the liquid crystal is troublesome to maintain a constant resistivity at all times, and the mixed substance may be decomposed, making it difficult to use the liquid crystal display element. Display defects may occur during the process, which poses a problem in reliability.
［問題を解決するための手段］
本発明は、かかる問題点を解決すべくなされたものであ
り、第１の透明電極を形成した第１の基板と、第２の透
明電極を形成した第２の基板とを電極面が相対向するよ
うに間隔を置いて配置し、周辺をシール材でシールし、
内部に液晶を封入してなる液晶表示素子において、第１
の透明電極と第２の透明電極とをシール部で対向させる
とともに、シール材による電極間の抵抗値が液晶による
電極間の抵抗値よりも低くされていることを特徴とする
液晶表示素子を提供するものである。[Means for Solving the Problems] The present invention has been made to solve these problems, and includes a first substrate on which a first transparent electrode is formed, and a second substrate on which a second transparent electrode is formed. The substrate is placed at a distance so that the electrode surfaces face each other, and the periphery is sealed with a sealing material.
In a liquid crystal display element having a liquid crystal sealed inside, the first
Provided is a liquid crystal display element, characterized in that a transparent electrode and a second transparent electrode are opposed to each other at a sealing part, and the resistance value between the electrodes due to the sealing material is lower than the resistance value between the electrodes due to the liquid crystal. It is something to do.
以下本発明を図面を参照して説明する。The present invention will be explained below with reference to the drawings.
第１図は本発明の基本的な例の端子部付近の部分平面図
であり、第２図はそのＡＡ面端面図である。FIG. 1 is a partial plan view of the vicinity of a terminal portion of a basic example of the present invention, and FIG. 2 is an end view on the AA plane thereof.
図において、 ｌは液晶表示素子を表し、２Ａは第１の
基板、２Ｂは第２の基板、３Ａは第１の透明電極、３Ｂ
は第２の透明電極、 ４はシール、 ５は液晶、 ８は
第１の基板上の第１の透明電極３Ａを第２の基板側に導
電接続するためのトランスファーを表している。なお、
わかりやすくするためにこの第１図ではシール内では表
示パターンのみを示しており、具体的に第１の透明電極
のパターン及び第２の透明電極のパターンを示していな
い。In the figure, l represents a liquid crystal display element, 2A is a first substrate, 2B is a second substrate, 3A is a first transparent electrode, 3B
is a second transparent electrode, 4 is a seal, 5 is a liquid crystal, and 8 is a transfer for conductively connecting the first transparent electrode 3A on the first substrate to the second substrate side. In addition,
For the sake of clarity, FIG. 1 shows only the display pattern within the seal, and does not specifically show the pattern of the first transparent electrode and the pattern of the second transparent electrode.
この透明電極パターンの一例は、第３図に第１の基板の
パターンを、第４図に第２の基板のパターンを示す、な
お、これらの図ではわかり゛ やすくするため、い
ずれも液晶表示素子の観察者側から見た状態で簡略化し
て示しである。As an example of this transparent electrode pattern, the pattern of the first substrate is shown in FIG. 3, and the pattern of the second substrate is shown in FIG. This is a simplified illustration of the state seen from the observer's side.
本発明において、基板は１通常ガラス、プラスチック等
の透明基板とされればよい、この基板上に形成される透
明電極としても、通常使用されているＩＴＯ（＃化イン
ジウムー酸化スズ）や酸化スズ等が使用でき、必要に応
じてアルミ、クロム、ニッケル等の金属による低抵抗の
リードを併用する等してもよい、また、必要に応じて、
この基板と透明電極の間にアルカリ溶出防止被膜、カラ
ーフィルター、偏光膜、反射Ｗ２等を形成してもよい。In the present invention, the substrate may be a transparent substrate such as glass or plastic.The transparent electrode formed on this substrate may also be made of commonly used ITO (indium tin oxide) or tin oxide. can be used, and if necessary, low-resistance leads made of metals such as aluminum, chromium, nickel, etc. may also be used.
An alkali elution prevention coating, a color filter, a polarizing film, a reflective film W2, etc. may be formed between this substrate and the transparent electrode.
また、この透明電極上には通常配向膜が形成されるが、
この外、遮光膜、絶縁膜、カラーフィルター等を形成し
てもよい。In addition, an alignment film is usually formed on this transparent electrode,
In addition to this, a light shielding film, an insulating film, a color filter, etc. may be formed.
本発明では、第１図に示されるように、第１の透明電極
と第２の透明電極とがシール部で相対向するようにされ
る。この相対向される２つの電極は１表示部で対向して
いる電極同志であり、表示部で対向していない電極同志
はシール部で対向していなくてもよい。In the present invention, as shown in FIG. 1, the first transparent electrode and the second transparent electrode are arranged to face each other at the seal portion. These two electrodes facing each other are electrodes that face each other in one display section, and electrodes that do not face each other in the display part do not need to face each other in the seal part.
この第１図の例では第１の基板に設けられるコモン電極
が２つとされ、端子部に示したように１１と１２とする
。また、これに対向する第２の基板のセグメント電極は
表示ケタ数にもよるが第１図のように、ｒｌＪ １文字
と口字型表示２ケタの場合には９個とされ、 ２１．２
２．２３．２４．２５、２Ｂ、２７．２８．２９とされ
る。In the example shown in FIG. 1, there are two common electrodes provided on the first substrate, 11 and 12 as shown in the terminal section. The number of segment electrodes on the second substrate facing this depends on the number of display digits, but as shown in Fig. 1, in the case of rlJ 1 character and 2-digit mouthpiece type display, the number of segment electrodes is 9.
2.23.24.25, 2B, 27.28.29.
この例の場合には、「ｌ」の表示はコモン電極１１とセ
グメント電極２１とによりなされ、セグメント電極２１
はコモン電極１２とは表示部で対向していない、このた
め、シール部ではコモン電極１１とセグメント電極２１
とは対向している必要があり、コモン電極１２とセグメ
ント電極２１とは対向している必要はない、また、この
セグメント電極２１を除いたセグメント電極２２〜２８
は、全てコモン電極１１と１２との対向しており、シー
ル部で対向するようにされる必要がある。In this example, the display of "l" is made by the common electrode 11 and the segment electrode 21, and the segment electrode 21
does not face the common electrode 12 in the display section, therefore, the common electrode 11 and the segment electrode 21 do not face each other in the seal section.
The common electrode 12 and the segment electrode 21 need not be opposed to each other, and the segment electrodes 22 to 28 other than this segment electrode 21
The common electrodes 11 and 12 are all opposed to each other, and must be opposed at the seal portion.
このシールはシール材による電極間の抵抗値が液晶によ
る電極間の抵抗値よりも低くされているものであり、こ
れにより静電気による電荷がたまった際に液晶を通して
放電されるよりもシールを通して放電され、速やかに誤
表示が消えることとなる。In this seal, the resistance value between the electrodes of the seal material is lower than the resistance value between the electrodes of the liquid crystal, so that when static electricity accumulates, it is discharged through the seal rather than through the liquid crystal. , the erroneous display will disappear immediately.
液晶の比抵抗は通常１０目ΩｌＩｃ−以上あり、セル間
隙、表示パターンの大きさにもよるが液晶をはさむ電極
間の実際の抵抗値はおおよそ１００ＭΩ以上となってい
る。The specific resistance of a liquid crystal is usually more than 10 ΩlIc-, and although it depends on the cell gap and the size of the display pattern, the actual resistance value between the electrodes that sandwich the liquid crystal is approximately 100 MΩ or more.
このため、シール材による電極間の抵抗値が液晶による
電極間の抵抗値の１７１Ｏ以下にされることが静電気の
放電が速く好ましく、液晶による電極間の抵抗値が１０
０ＭΩの場合には１０ＭΩ以下とされることが好ましい
、また、この抵抗値があまり低くなると液晶を駆動する
回路の出力インピーダンスとの関係で回路または駆動波
形に悪影響がでること及び消費電力の増大をまねくため
、駆動回路の出力インピーダンスに比して少なくとも１
０倍以上、できれば５０倍以上の値とされることが好ま
しい。For this reason, it is preferable that the resistance value between the electrodes due to the sealing material is set to 171O or less than the resistance value between the electrodes due to the liquid crystal, because static electricity can be quickly discharged.
In the case of 0MΩ, it is preferable to set it to 10MΩ or less. Also, if this resistance value is too low, it may adversely affect the circuit or drive waveform due to the output impedance of the circuit that drives the liquid crystal, and increase power consumption. At least 1% compared to the output impedance of the drive circuit to prevent
It is preferable that the value is 0 times or more, preferably 50 times or more.
このため、具体的にはシールによる電極間の抵抗イ１が
５００ｋ −１０８Ω程度とされることが好ましい。For this reason, specifically, it is preferable that the resistance I1 between the electrodes due to the seal is approximately 500k-108Ω.
このシール材は、そのシールによる電極間の抵抗値が上
記範囲となるように、第１の透明電極と第２の透明電極
とのシール部での対向する面植、セル間隙、表示パター
ンを考慮してシール材の比抵抗を調整すればよい、具体
的には、１０８〜１０９Ω拳ｃ−程度とされればよい。This sealing material takes into consideration the opposing surface planting at the sealing part of the first transparent electrode and the second transparent electrode, the cell gap, and the display pattern so that the resistance value between the electrodes due to the seal is within the above range. Specifically, the specific resistance of the sealing material may be adjusted to about 108 to 109 Ω.
このシール材の比抵抗を調整するためには。In order to adjust the specific resistance of this sealing material.
シール材中に導電性樹脂や導電性粒子を混入すればよく
、例えばカーボン、金属等の微粒子を少量混入すればよ
い。A conductive resin or conductive particles may be mixed into the sealing material, for example, a small amount of fine particles of carbon, metal, etc. may be mixed.
このようにして製造された液晶表示素子は、必要に応じ
てさらに偏光膜、反射膜、導光板、光源、タッチスイッ
チ、ノングレアフィルター等を積層したり５表面に印刷
層、ノングレア層を形成したり、コネクター、ピン等を
付けたりする。この外、公知の液晶表示素子に゛付属さ
せられるものを付属させてもよいし、本発明の効果を損
しない範囲でセル内の構成を変更してもよい。The liquid crystal display element manufactured in this way may be further laminated with a polarizing film, a reflective film, a light guide plate, a light source, a touch switch, a non-glare filter, etc., or a printed layer or a non-glare layer may be formed on the 5th surface as necessary. , attach connectors, pins, etc. In addition, elements that are attached to known liquid crystal display elements may be attached, and the structure within the cell may be changed within a range that does not impair the effects of the present invention.
また、このシール部内で電極を対向させる場合、前述の
例では端子に引き出されるリード部分で夫々対向させて
いるが、端子側でなく逆の側で対向させてもよいし、シ
ール部内で対向させるためにダミー電極を形成してもよ
い。In addition, when the electrodes are made to face each other within this sealing part, in the above example, they are made to face each other at the lead parts drawn out to the terminal, but they may be made to face each other on the opposite side instead of the terminal side, or they may be made to face each other within the sealing part. A dummy electrode may be formed for this purpose.
例えば、前述の例において、コモン電極１２はその端子
側の部分でセグメント電極２２〜２９と対向しているの
ではなく、第５図に示すように下側のシール部に両電極
を引き出して対向させてもよい、また、第６図のように
シール部に１本のダミー電極３１を形成し、このダミー
電極を介してコモン電極１１．１２とセグメント電極２
１〜２９とを対向するようにしてもよい、この場合、電
極間の抵抗は、コモン電極からダミー電極への抵抗とダ
ミー電極からセグメント電極への抵抗の和になることと
なる。For example, in the above-mentioned example, the common electrode 12 does not face the segment electrodes 22 to 29 at its terminal side, but instead draws out both electrodes to the lower seal part and faces them as shown in FIG. Alternatively, as shown in FIG. 6, one dummy electrode 31 may be formed in the seal part, and the common electrode 11.12 and the segment electrode 2 may be connected via this dummy electrode.
1 to 29 may face each other. In this case, the resistance between the electrodes will be the sum of the resistance from the common electrode to the dummy electrode and the resistance from the dummy electrode to the segment electrode.
〔作用］
本発明の液晶表示素子は前記したような構成を有してお
り、液晶による電極間の抵抗値よりもシールによる電極
間の抵抗値が低くされている。[Function] The liquid crystal display element of the present invention has the above-described configuration, and the resistance value between the electrodes due to the seal is lower than the resistance value between the electrodes due to the liquid crystal.
第７図は、この液晶表示素子の等価回路を表した等価回
路図であり、Ｒｃは第１の透明電極（コモン電極）のパ
ターン抵抗、Ｒｓは第１の透明電極（セグメント電極）
のパターン抵抗、Ｒｘは液晶の抵抗、Ｃｘは液晶の容量
、Ｒｚはシール部により形成された抵抗を表す。FIG. 7 is an equivalent circuit diagram showing the equivalent circuit of this liquid crystal display element, where Rc is the pattern resistance of the first transparent electrode (common electrode), and Rs is the first transparent electrode (segment electrode).
Rx is the resistance of the liquid crystal, Cx is the capacitance of the liquid crystal, and Rz is the resistance formed by the seal portion.
ここで、外部からの静電気により液晶が帯電しても、Ｃ
ｘに蓄電された電荷は、従来の液晶の抵抗Ｒｘを通じて
のみでなく、シール部の抵抗とパターン抵抗との和ＲＣ
＋Ｒ２＋Ｒ５を通じても放電されることとなる。この場
合、パタ−ン抵抗Ｒｅ、ＲｓはＲｘ、Ｒｚに比して極め
て低いため、はとんど無視しうることとなり。Here, even if the liquid crystal is charged by static electricity from the outside, C
The electric charge stored in
It will also be discharged through +R2+R5. In this case, since the pattern resistances Re and Rs are extremely low compared to Rx and Rz, they can be almost ignored.
実質的にはシール部の抵抗Ｒｚにより放電されることと
なる。このＲｚを前述の如く液晶による抵抗Ｒｘの１／
１０以下にしておけば、この放電は極めて速やかに行わ
れることとなる。Substantially, the discharge occurs due to the resistance Rz of the seal portion. As mentioned above, this Rz is 1/ of the resistance Rx due to the liquid crystal.
If it is set to 10 or less, this discharge will occur extremely quickly.
このため、液晶表示素子が静電気により帯電して、本来
点灯しない部分が点灯した際においも、液晶を通じて放
電されるよりも速くシール部を通して放電されるため、
速やかに消灯することとなり、誤り表示が長く継続しな
く、表示を誤認する危険性が低下する。For this reason, even when the liquid crystal display element is charged with static electricity and parts of the display that should not normally be lit turn on, the odor is also discharged through the seal part faster than through the liquid crystal.
The light goes out quickly, the false display does not continue for a long time, and the risk of misunderstanding the display is reduced.
［実施例］
比較例
電卓用の１／２デユ一テイ日宇型８ケタの表示パターン
を準備し、シール材にエポキシ樹脂を使用し、高比抵抗
の高信頼性の液晶を注入して液晶セルを形成したところ
、その各コモン電極と各゛セグメント電極との間の抵抗
値は液晶の比抵抗から求めた抵抗値にほぼ一致し、 １
００％Ω以上であった。[Example] A 1/2 duty, day-to-day, 8-digit display pattern for a comparative example calculator was prepared, epoxy resin was used as a sealant, and a highly reliable liquid crystal with high resistivity was injected into the liquid crystal. When a cell was formed, the resistance value between each common electrode and each segment electrode almost matched the resistance value determined from the specific resistance of the liquid crystal, and 1
It was 00%Ω or more.
この液晶セルに静電気を帯電させたところ、駆動してい
ないところが点灯し、数秒以上も誤ったパターンが点灯
した。When this liquid crystal cell was charged with static electricity, the parts that were not being driven lit up, and an incorrect pattern was lit for several seconds or more.
実施例１
第１図と同様に、シール部内で全てのコモン電極とセグ
メント電極とが対向するようにし、シール材としてカー
ボンの微粒子を混入したエポキシ樹脂を使用してシール
を行い、シールでの電極間の抵抗を約３〜８ＭΩとした
液晶セルを形成した。Example 1 As in Fig. 1, all the common electrodes and segment electrodes were made to face each other in the seal part, and sealing was performed using epoxy resin mixed with carbon fine particles as a sealing material. A liquid crystal cell with a resistance between about 3 and 8 MΩ was formed.
この液晶セルを比較例でしたと同様に静電気を帯電させ
たところ、駆動していないところが点灯しても、直ちに
消灯し、誤認をほとんど生じなかった。When this liquid crystal cell was charged with static electricity in the same manner as in the comparative example, even if the part that was not being driven turned on, it immediately turned off, and almost no misidentification occurred.
実施例２
第５図のようなパターンとした外は実施例１と同様にし
て液晶セルを形成した。Example 2 A liquid crystal cell was formed in the same manner as in Example 1 except that the pattern as shown in FIG. 5 was used.
この液晶セルに静電気を帯電させたところ。This liquid crystal cell is charged with static electricity.
実施例１と同様に駆動していないところが点灯しても、
直ちに消灯し、誤認をほとんど生じなかった。Even if the parts that are not driven turn on as in Example 1,
The light went out immediately, and there were almost no misidentifications.
実施例３
第６図のようなパターンとし、シールでのダミー電極と
コモン電極との間及びダミー電極とセグメント電極との
間の抵抗を夫々的２〜５ＭΩとした外は実施例１と同様
にして液晶セルを形成した。Example 3 The pattern was as shown in Figure 6, and the resistance between the dummy electrode and the common electrode in the seal and between the dummy electrode and the segment electrode was set to 2 to 5 MΩ, respectively. A liquid crystal cell was formed.
この液晶セルに静電気を帯電させたところ、実施例１と
同様に駆動していないところが点灯しても、直ちに消灯
し、誤認をほとんど生じなかった。When this liquid crystal cell was charged with static electricity, even if the part that was not being driven turned on, as in Example 1, the light went out immediately, and almost no misidentification occurred.
実施例４
実施例２と同様にして、 １７８デユーテイドツトマト
リクスの表示パターンを準備し、上下の２つの辺のシー
ル部内に４本ずつのコモン電極のリードパターンを設け
、全てのコモン電極と全てのセグメント電極とが対向す
るようにして液晶セルを構成した。この液晶セルのシー
ルでの電極間の抵抗は約４〜１０ＭΩであった。Example 4 In the same manner as in Example 2, a display pattern of 178 duty matrix was prepared, and lead patterns of four common electrodes were provided in the seal portion on the upper and lower two sides, and all the common electrodes and A liquid crystal cell was constructed so that all the segment electrodes faced each other. The resistance between the electrodes at the seal of this liquid crystal cell was approximately 4 to 10 MΩ.
この液晶セルに静電気を帯電させたところ、実施例１と
同様に駆動していないところが点灯しても、直ちに消灯
し、誤認をほとんど生じなかった。When this liquid crystal cell was charged with static electricity, even if the part that was not being driven turned on, as in Example 1, the light went out immediately, and almost no misidentification occurred.
［発明の効果］
本発明の液晶表示装置は、シール部内で第１の基板上の
第１の透明電極と第２の基板の第２の透明電極とが対向
しており、かつそのシールでの電極間の抵抗が液晶によ
る抵抗よりも低くされていることにより、もし静電気が
帯電しても直ちにその表示が消え、表示の誤認を生じに
くい。[Effects of the Invention] In the liquid crystal display device of the present invention, the first transparent electrode on the first substrate and the second transparent electrode on the second substrate face each other within the seal portion, and Since the resistance between the electrodes is lower than the resistance of the liquid crystal, even if static electricity is generated, the display disappears immediately, making it difficult to misread the display.
また、このシール部での抵抗は液晶駆動回路。Also, the resistance at this seal is the liquid crystal drive circuit.
の出力インピーダンスよりもずっと高く、駆動波形に悪
影響を生じにくく、わずかに消費電力の増加を生じるの
みとすることができる。The output impedance is much higher than the output impedance of the drive waveform, and the drive waveform is less likely to be adversely affected, and the power consumption increases only slightly.
また、製造工程として新たな工程が付加されないため、
生産性を低下させない、さらに、液晶中に不純物となる
物質を混入しなくてもよいため、液晶の信頼性が低下す
ることもない。In addition, since no new process is added to the manufacturing process,
Productivity is not reduced, and since there is no need to mix substances that become impurities into the liquid crystal, the reliability of the liquid crystal does not deteriorate.
第１図は本発明の液晶表示素子の代表的な例の平面図で
あり、第２図はそのＡＡ面端面図。
第３図及び第４図は、夫々第１図の第１の基板及び第２
の基板の透明電極のパターンの平面図。
第５図及び第６図は、本発明の液晶表示素子の他の例の
平面図。
第７図は第１図の例の等価回路図。
液晶表示素子 ＝ １
第１の基板 ：２Ａ
第２の基板 ＝２Ｂ
第１の透明電極 ：３Ａ
第２の透明電極 ＝３Ｂ
シール ： ４
液晶 ： ５
トランスファー ： ６
馨 １ ｚ
′第２ ｚFIG. 1 is a plan view of a typical example of the liquid crystal display element of the present invention, and FIG. 2 is an end view on the AA plane thereof. 3 and 4 show the first and second substrates of FIG. 1, respectively.
FIG. 2 is a plan view of a pattern of transparent electrodes on a substrate. 5 and 6 are plan views of other examples of the liquid crystal display element of the present invention. FIG. 7 is an equivalent circuit diagram of the example shown in FIG. Liquid crystal display element = 1 First substrate: 2A Second substrate = 2B First transparent electrode: 3A Second transparent electrode = 3B Seal: 4 Liquid crystal: 5 Transfer: 6 Kaoru 1 z '2nd z
Claims (4)
透明電極を形成した第２の基板とを電極面が相対向する
ように間隔を置いて配置し、周辺をシール材でシールし
、内部に液晶を封入してなる液晶表示素子において、第
１の透明電極と第２の透明電極とをシール部で対向させ
るとともに、シール材による電極間の抵抗値が液晶によ
る電極間の抵抗値よりも低くされていることを特徴とす
る液晶表示素子。(1) A first substrate on which a first transparent electrode is formed and a second substrate on which a second transparent electrode is formed are arranged at a distance so that the electrode surfaces face each other, and the periphery is covered with a sealing material. In a liquid crystal display element in which a first transparent electrode and a second transparent electrode are opposed to each other at the sealing part, and the resistance value between the electrodes due to the sealing material is the same as the resistance value between the electrodes due to the liquid crystal, A liquid crystal display element characterized in that the resistance value is lower than that of .
間の抵抗値の１／１０以下とされている特許請求の範囲
第１項記載の液晶表示素子。(2) The liquid crystal display element according to claim 1, wherein the resistance value between the electrodes due to the sealing material is 1/10 or less of the resistance value between the electrodes due to the liquid crystal.
ＭΩとされる特許請求の範囲第２項記載の液晶表示素子
。(3) The resistance value between the electrodes due to the sealing material is 500k to 10
The liquid crystal display element according to claim 2, which is MΩ.
囲第３項記載の液晶表示素子。(4) The liquid crystal display element according to claim 3, wherein the sealing material contains conductive particles.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61198160A JPH0827458B2 (en) | 1986-08-26 | 1986-08-26 | Liquid crystal display element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP61198160A JPH0827458B2 (en) | 1986-08-26 | 1986-08-26 | Liquid crystal display element |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| JPS6355524A true JPS6355524A (en) | 1988-03-10 |
| JPH0827458B2 JPH0827458B2 (en) | 1996-03-21 |
Family
ID=16386459
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP61198160A Expired - Lifetime JPH0827458B2 (en) | 1986-08-26 | 1986-08-26 | Liquid crystal display element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0827458B2 (en) |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0413926U (en) * | 1990-05-23 | 1992-02-04 | ||
| JPH04136816A (en) * | 1990-09-27 | 1992-05-11 | Sharp Corp | Liquid crystal display device |
| JPH09152620A (en) * | 1995-11-29 | 1997-06-10 | Nec Corp | Liquid crystal display element |
| WO2003040818A1 (en) * | 2001-11-08 | 2003-05-15 | Catalysts & Chemicals Industries Co., Ltd. | Liquid crystal display cell and sealant for liquid crystal display cell seal part |
| JP2014224840A (en) * | 2013-05-15 | 2014-12-04 | 三菱電機株式会社 | Liquid crystal display panel |
| JP2015158621A (en) * | 2014-02-25 | 2015-09-03 | フレックス・ディー株式会社 | liquid crystal display device |
Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58172626A (en) * | 1982-04-01 | 1983-10-11 | Seiko Epson Corp | Plane type panel |
| JPS60159727A (en) * | 1984-01-30 | 1985-08-21 | Ricoh Co Ltd | Liquid crystal display element |
| JPS6189819U (en) * | 1984-11-16 | 1986-06-11 |
-
1986
- 1986-08-26 JP JP61198160A patent/JPH0827458B2/en not_active Expired - Lifetime
Patent Citations (3)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPS58172626A (en) * | 1982-04-01 | 1983-10-11 | Seiko Epson Corp | Plane type panel |
| JPS60159727A (en) * | 1984-01-30 | 1985-08-21 | Ricoh Co Ltd | Liquid crystal display element |
| JPS6189819U (en) * | 1984-11-16 | 1986-06-11 |
Cited By (6)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JPH0413926U (en) * | 1990-05-23 | 1992-02-04 | ||
| JPH04136816A (en) * | 1990-09-27 | 1992-05-11 | Sharp Corp | Liquid crystal display device |
| JPH09152620A (en) * | 1995-11-29 | 1997-06-10 | Nec Corp | Liquid crystal display element |
| WO2003040818A1 (en) * | 2001-11-08 | 2003-05-15 | Catalysts & Chemicals Industries Co., Ltd. | Liquid crystal display cell and sealant for liquid crystal display cell seal part |
| JP2014224840A (en) * | 2013-05-15 | 2014-12-04 | 三菱電機株式会社 | Liquid crystal display panel |
| JP2015158621A (en) * | 2014-02-25 | 2015-09-03 | フレックス・ディー株式会社 | liquid crystal display device |
Also Published As
| Publication number | Publication date |
|---|---|
| JPH0827458B2 (en) | 1996-03-21 |
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