JPH01172929A - Liquid crystal element - Google Patents
Liquid crystal elementInfo
- Publication number
- JPH01172929A JPH01172929A JP33286587A JP33286587A JPH01172929A JP H01172929 A JPH01172929 A JP H01172929A JP 33286587 A JP33286587 A JP 33286587A JP 33286587 A JP33286587 A JP 33286587A JP H01172929 A JPH01172929 A JP H01172929A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- crystal element
- alignment
- formula
- group
- 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 58
- 239000000758 substrate Substances 0.000 claims abstract description 16
- 125000003545 alkoxy group Chemical group 0.000 claims abstract description 3
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 3
- 125000003178 carboxy group Chemical group [H]OC(*)=O 0.000 claims abstract description 3
- 229910052736 halogen Inorganic materials 0.000 claims abstract description 3
- 150000002367 halogens Chemical class 0.000 claims abstract description 3
- 150000002431 hydrogen Chemical class 0.000 claims abstract description 3
- 229910052739 hydrogen Inorganic materials 0.000 claims abstract description 3
- 239000001257 hydrogen Substances 0.000 claims abstract description 3
- 125000000449 nitro group Chemical group [O-][N+](*)=O 0.000 claims abstract description 3
- 150000001875 compounds Chemical class 0.000 claims description 9
- 239000000126 substance Substances 0.000 claims 1
- 230000007547 defect Effects 0.000 abstract description 3
- 238000007740 vapor deposition Methods 0.000 abstract description 3
- 230000003247 decreasing effect Effects 0.000 abstract 1
- 239000005262 ferroelectric liquid crystals (FLCs) Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 10
- 238000000576 coating method Methods 0.000 description 5
- -1 polyethylene terephthalate Polymers 0.000 description 5
- 150000002148 esters Chemical class 0.000 description 4
- 230000003287 optical effect Effects 0.000 description 4
- 230000004044 response Effects 0.000 description 4
- 239000011248 coating agent Substances 0.000 description 3
- 239000004744 fabric Substances 0.000 description 3
- 229920001721 polyimide Polymers 0.000 description 3
- 239000004986 Cholesteric liquid crystals (ChLC) Substances 0.000 description 2
- 239000004642 Polyimide Substances 0.000 description 2
- 239000006087 Silane Coupling Agent Substances 0.000 description 2
- 238000007796 conventional method Methods 0.000 description 2
- 238000012937 correction Methods 0.000 description 2
- 230000007423 decrease Effects 0.000 description 2
- ZUOUZKKEUPVFJK-UHFFFAOYSA-N diphenyl Chemical compound C1=CC=CC=C1C1=CC=CC=C1 ZUOUZKKEUPVFJK-UHFFFAOYSA-N 0.000 description 2
- 230000008020 evaporation Effects 0.000 description 2
- 238000001704 evaporation Methods 0.000 description 2
- 239000011521 glass Substances 0.000 description 2
- 229910010272 inorganic material Inorganic materials 0.000 description 2
- 239000011147 inorganic material Substances 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 230000015654 memory Effects 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 229920000620 organic polymer Polymers 0.000 description 2
- 229920000728 polyester Polymers 0.000 description 2
- 230000001105 regulatory effect Effects 0.000 description 2
- 238000011160 research Methods 0.000 description 2
- 229920005989 resin Polymers 0.000 description 2
- 239000011347 resin Substances 0.000 description 2
- 239000000565 sealant Substances 0.000 description 2
- 238000010583 slow cooling Methods 0.000 description 2
- OTVRYZXVVMZHHW-FNOPAARDSA-N (8s,9s,10r,13r,14s,17r)-3-chloro-10,13-dimethyl-17-[(2r)-6-methylheptan-2-yl]-2,3,4,7,8,9,11,12,14,15,16,17-dodecahydro-1h-cyclopenta[a]phenanthrene Chemical compound C1C=C2CC(Cl)CC[C@]2(C)[C@@H]2[C@@H]1[C@@H]1CC[C@H]([C@H](C)CCCC(C)C)[C@@]1(C)CC2 OTVRYZXVVMZHHW-FNOPAARDSA-N 0.000 description 1
- YJTKZCDBKVTVBY-UHFFFAOYSA-N 1,3-Diphenylbenzene Chemical group C1=CC=CC=C1C1=CC=CC(C=2C=CC=CC=2)=C1 YJTKZCDBKVTVBY-UHFFFAOYSA-N 0.000 description 1
- 229920000742 Cotton Polymers 0.000 description 1
- YCKRFDGAMUMZLT-UHFFFAOYSA-N Fluorine atom Chemical compound [F] YCKRFDGAMUMZLT-UHFFFAOYSA-N 0.000 description 1
- 239000004677 Nylon Substances 0.000 description 1
- 239000002033 PVDF binder Substances 0.000 description 1
- ISWSIDIOOBJBQZ-UHFFFAOYSA-N Phenol Chemical compound OC1=CC=CC=C1 ISWSIDIOOBJBQZ-UHFFFAOYSA-N 0.000 description 1
- 239000004695 Polyether sulfone Substances 0.000 description 1
- 239000004697 Polyetherimide Substances 0.000 description 1
- 239000004698 Polyethylene Substances 0.000 description 1
- 239000004743 Polypropylene Substances 0.000 description 1
- 239000004793 Polystyrene Substances 0.000 description 1
- CZPWVGJYEJSRLH-UHFFFAOYSA-N Pyrimidine Chemical compound C1=CN=CN=C1 CZPWVGJYEJSRLH-UHFFFAOYSA-N 0.000 description 1
- 239000002262 Schiff base Substances 0.000 description 1
- 150000004753 Schiff bases Chemical class 0.000 description 1
- SMEGJBVQLJJKKX-HOTMZDKISA-N [(2R,3S,4S,5R,6R)-5-acetyloxy-3,4,6-trihydroxyoxan-2-yl]methyl acetate Chemical compound CC(=O)OC[C@@H]1[C@H]([C@@H]([C@H]([C@@H](O1)O)OC(=O)C)O)O SMEGJBVQLJJKKX-HOTMZDKISA-N 0.000 description 1
- 229940081735 acetylcellulose Drugs 0.000 description 1
- 239000002253 acid Substances 0.000 description 1
- 239000004760 aramid Substances 0.000 description 1
- 229920003235 aromatic polyamide Polymers 0.000 description 1
- 125000005337 azoxy group Chemical group [N+]([O-])(=N*)* 0.000 description 1
- 230000002457 bidirectional effect Effects 0.000 description 1
- 239000004305 biphenyl Substances 0.000 description 1
- 235000010290 biphenyl Nutrition 0.000 description 1
- JWXLCQHWBFHMOI-NIQMUPOESA-N bis[(3S,8S,9S,10R,13R,14S,17R)-10,13-dimethyl-17-[(2R)-6-methylheptan-2-yl]-2,3,4,7,8,9,11,12,14,15,16,17-dodecahydro-1H-cyclopenta[a]phenanthren-3-yl] carbonate Chemical compound C([C@@H]12)C[C@]3(C)[C@@H]([C@H](C)CCCC(C)C)CC[C@H]3[C@@H]1CC=C(C1)[C@]2(C)CC[C@@H]1OC(=O)O[C@@H]1CC2=CC[C@H]3[C@@H]4CC[C@H]([C@H](C)CCCC(C)C)[C@@]4(C)CC[C@@H]3[C@@]2(C)CC1 JWXLCQHWBFHMOI-NIQMUPOESA-N 0.000 description 1
- 229920002301 cellulose acetate Polymers 0.000 description 1
- HVYWMOMLDIMFJA-DPAQBDIFSA-N cholesterol group Chemical group [C@@H]1(CC[C@H]2[C@@H]3CC=C4C[C@@H](O)CC[C@]4(C)[C@H]3CC[C@]12C)[C@H](C)CCCC(C)C HVYWMOMLDIMFJA-DPAQBDIFSA-N 0.000 description 1
- 230000000052 comparative effect Effects 0.000 description 1
- 210000002858 crystal cell Anatomy 0.000 description 1
- IGARGHRYKHJQSM-UHFFFAOYSA-N cyclohexylbenzene Chemical compound C1CCCCC1C1=CC=CC=C1 IGARGHRYKHJQSM-UHFFFAOYSA-N 0.000 description 1
- 238000007598 dipping method Methods 0.000 description 1
- 239000002019 doping agent Substances 0.000 description 1
- 239000003814 drug Substances 0.000 description 1
- 229940079593 drug Drugs 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 230000005684 electric field Effects 0.000 description 1
- 239000003822 epoxy resin Substances 0.000 description 1
- 230000001747 exhibiting effect Effects 0.000 description 1
- 239000012847 fine chemical Substances 0.000 description 1
- 229910052731 fluorine Inorganic materials 0.000 description 1
- 239000011737 fluorine Substances 0.000 description 1
- 229920006015 heat resistant resin Polymers 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000010365 information processing Effects 0.000 description 1
- 229920001778 nylon Polymers 0.000 description 1
- 239000002245 particle Substances 0.000 description 1
- 239000002985 plastic film Substances 0.000 description 1
- 229920006255 plastic film Polymers 0.000 description 1
- 229920002492 poly(sulfone) Polymers 0.000 description 1
- 229920002401 polyacrylamide Polymers 0.000 description 1
- 229920001707 polybutylene terephthalate Polymers 0.000 description 1
- 239000004417 polycarbonate Substances 0.000 description 1
- 229920000515 polycarbonate Polymers 0.000 description 1
- 229920000647 polyepoxide Polymers 0.000 description 1
- 229920006393 polyether sulfone Polymers 0.000 description 1
- 229920001601 polyetherimide Polymers 0.000 description 1
- 229920000573 polyethylene Polymers 0.000 description 1
- 229920000139 polyethylene terephthalate Polymers 0.000 description 1
- 239000005020 polyethylene terephthalate Substances 0.000 description 1
- 239000009719 polyimide resin Substances 0.000 description 1
- 229920001155 polypropylene Polymers 0.000 description 1
- 229920002223 polystyrene Polymers 0.000 description 1
- 229920002981 polyvinylidene fluoride Polymers 0.000 description 1
- 230000004043 responsiveness Effects 0.000 description 1
- 238000007761 roller coating Methods 0.000 description 1
- 239000002904 solvent Substances 0.000 description 1
- 125000006850 spacer group Chemical group 0.000 description 1
- 238000005507 spraying Methods 0.000 description 1
- 229920003051 synthetic elastomer Polymers 0.000 description 1
- 239000005061 synthetic rubber Substances 0.000 description 1
- 150000005621 tetraalkylammonium salts Chemical class 0.000 description 1
- 229920002554 vinyl polymer Polymers 0.000 description 1
Abstract
Description
【発明の詳細な説明】
〔技術分野〕
本発明は、表示素子、ライトバルブ、光シヤツター、光
メモリーなどの用途を有する液晶素子に関する。DETAILED DESCRIPTION OF THE INVENTION [Technical Field] The present invention relates to a liquid crystal element that has uses such as display elements, light valves, optical shutters, and optical memories.
強誘電性液晶を用いた液晶表示素子、液晶シャッター、
液晶ライトバルブ、光情報処理用スイッチング素子、光
メモリーなどの液晶素子では、液晶を一方向に優先的に
配向させる必要がある。この配向処理はこれらの液晶素
子の品質に大きな影響を与えることから多くの研究がな
されている。Liquid crystal display elements using ferroelectric liquid crystals, liquid crystal shutters,
In liquid crystal elements such as liquid crystal light valves, switching elements for optical information processing, and optical memories, it is necessary to preferentially align liquid crystal in one direction. Since this alignment treatment has a great influence on the quality of these liquid crystal elements, much research has been conducted on it.
液晶の基板表面での配向状態には、基板面に平行に配向
するホモジニアス配向と、基板面に垂直に配向するホメ
オトロピック配向とに大きくわけられる。The alignment state of liquid crystal on the substrate surface can be broadly classified into homogeneous alignment, which is aligned parallel to the substrate surface, and homeotropic alignment, which is aligned perpendicular to the substrate surface.
実際の液晶は、このように配向された強誘電性液晶に電
界などを印加することにより、液晶の配向状態を変化さ
せ、複屈折、２色性等を利用して、光の０Ｎ−ＯＦＦを
行う。In actual liquid crystals, by applying an electric field etc. to the ferroelectric liquid crystals oriented in this way, the alignment state of the liquid crystals is changed, and by using birefringence, dichroism, etc., light is turned on and off. conduct.
従来の液晶の配向方法としては、無機物の斜方蒸着、シ
ランカップリング剤塗膜や有機高分子塗膜のラビングな
どが知られているが、いずれも満足のいくものではない
。無機物の斜方蒸着はバッ子処理のため時間がかかり、
生産性が悪い、また、シランカップリング剤の塗膜をラ
ビングする方法は、信頼性に乏しい、さらに、有機高分
子塗膜をラビングして配向膜とする方法では、一般に耐
熱性の悪いものが多い、耐熱性が良好で広く用いられて
いるポリイミドの場合では、均質なモノドメインを得る
ことは困難であり、−また駆動時のコントラスト比が小
さく、更には、双安定性が悪く応答性が低下するという
難点がある。Conventional methods for aligning liquid crystals include oblique vapor deposition of inorganic materials, rubbing of silane coupling agent coatings, and rubbing of organic polymer coatings, but none of these methods are satisfactory. Oblique evaporation of inorganic materials takes time due to backing process.
The productivity is poor, and the method of rubbing a silane coupling agent coating has poor reliability.Furthermore, the method of rubbing an organic polymer coating to form an alignment film generally has poor heat resistance. In the case of polyimide, which has good heat resistance and is widely used, it is difficult to obtain homogeneous monodomains, the contrast ratio during driving is small, and furthermore, the bistability is poor and the response is poor. The problem is that it decreases.
本発明は、特定の配向膜を用いることにより、液晶、特
に強誘電性液晶の配向性を改良し、均一なモノドメイン
状態の配向性を示すと共に駆動時 、のコントラスト比
が大きく、良好な双安定性を有する液晶素子を提供する
ことを目的とする。The present invention improves the alignment of liquid crystals, especially ferroelectric liquid crystals, by using a specific alignment film, exhibits uniform monodomain alignment, and has a high contrast ratio and good bidirectional properties during driving. The object is to provide a liquid crystal element with stability.
本発明によれば、対向する一対の基板の内側に各々電極
及び液晶を配向させる配向層とを有し、その間に液晶層
を設けてなる液晶素子において、配向層を形成する成分
として下記−数式（１）で示される化合物を用いたこと
を特徴とする液晶素子（式中、Ｒは水素、ハロゲン、低
級アルキル基、低級アルコキシ基、ニトロ基又はカルボ
キシル基を、ｎ及び閣は１〜４の整数を表わす、）一般
に液晶の配向は配向膜の配向規制力によって行なわれる
が、この配向規制力が強過ぎると強誘電性液晶の特徴の
ひとつである双安定性を阻害し、応答性の低下を招来す
る。According to the present invention, in a liquid crystal element comprising a pair of opposing substrates, each having an electrode and an alignment layer for aligning liquid crystal, and a liquid crystal layer provided therebetween, the components forming the alignment layer are given by the following formula: A liquid crystal device characterized by using the compound represented by (1) (wherein R is hydrogen, halogen, lower alkyl group, lower alkoxy group, nitro group, or carboxyl group, and n and (represents an integer) Generally, the alignment of liquid crystals is performed by the alignment regulating force of an alignment film, but if this alignment regulating force is too strong, it will inhibit the bistability, which is one of the characteristics of ferroelectric liquid crystals, resulting in a decrease in responsiveness. invite.
本発明者らは、液晶として強誘電性液晶を用いたとして
も、欠陥の少ない均一なモノドメイン状態の配向が得ら
れるとともに安定した双安定性を示し、かつ駆動時のコ
ントラスト比の大きい液晶素子の研究を進めた結果、配
向膜として前記−数式（１）で示される化合物を用いた
液晶素子が上記目的に合致することを見出し１本発明を
完成するに至った。The present inventors have developed a liquid crystal element that can obtain a uniform monodomain alignment with few defects even if a ferroelectric liquid crystal is used as the liquid crystal, exhibits stable bistability, and has a high contrast ratio during driving. As a result of research, it was discovered that a liquid crystal element using a compound represented by formula (1) above as an alignment film satisfies the above object, and the present invention was completed.
従って、本発明の液晶素子は配向膜の主成分として前記
−数式（１）で示される化合物を用いたととを特徴とす
る。Therefore, the liquid crystal element of the present invention is characterized in that the compound represented by the above formula (1) is used as the main component of the alignment film.
前記−数式（夏）で示される化合物の具体例としては、
たとえば９次のものが挙げられる。Specific examples of the compound represented by the above formula (summer) are:
For example, the 9th order can be mentioned.
本発明の配向膜材を用いて基板上に配向膜を形成するに
は、前記−数式（１）で示される化合物を蒸着、スピン
コード、ローラコート、スプレィコート、ディッピング
等の従来公知の方法により塗布し、ついで、溶剤除去の
ために加熱して、膜厚１００〜５０００人、好ましくは
５ｏｏ−２０００人の配向膜とした後、綿布、ナイロン
植毛布、ポリエステル植毛布等によりラビング処理ある
いは斜方蒸着すればよい。In order to form an alignment film on a substrate using the alignment film material of the present invention, the compound represented by formula (1) is applied by a conventionally known method such as vapor deposition, spin cord, roller coating, spray coating, or dipping. After coating and then heating to remove the solvent to form an oriented film with a thickness of 100 to 5,000, preferably 50 to 2,000, it is rubbed or orthogonally coated with cotton cloth, nylon flocked fabric, polyester flocked fabric, etc. It can be vapor-deposited.
以下、添付図面に沿って本発明の詳細な説明する。Hereinafter, the present invention will be described in detail with reference to the accompanying drawings.
図面は、本発明の液晶素子の構成例を示す断面図である
。上基板１１と下基板２１とが対向して配設され、外周
部がシール剤３１でシールされ内部に強誘電性液晶３３
が封入されて液晶セル１０を構成している。液晶として
、強誘電性液晶に２色性色素を混入したものも用いるこ
とができる。下基板２１の表面には透明電極２３が設け
られ、さらにその上に配向膜２５が形成されている。ま
た、上基板１１の対向面には透明電極１３が設けられ、
さらにその上に配向膜１５が形成されている。The drawing is a sectional view showing an example of the structure of a liquid crystal element according to the present invention. An upper substrate 11 and a lower substrate 21 are disposed facing each other, their outer peripheries are sealed with a sealant 31, and a ferroelectric liquid crystal 33 is placed inside.
are sealed to constitute the liquid crystal cell 10. As the liquid crystal, a ferroelectric liquid crystal mixed with a dichroic dye can also be used. A transparent electrode 23 is provided on the surface of the lower substrate 21, and an alignment film 25 is further formed thereon. Further, a transparent electrode 13 is provided on the opposite surface of the upper substrate 11,
Furthermore, an alignment film 15 is formed thereon.
配向膜１５，２５は前記−数式（１，）で示される化合
物からなり、液晶分子は配向膜１５，２５に対して水平
方向に配向している。The alignment films 15 and 25 are made of a compound represented by the above formula (1,), and the liquid crystal molecules are aligned in the horizontal direction with respect to the alignment films 15 and 25.
このようにして形成した。液晶素子においては、従来公
知のラビング処理か斜方蒸着処理等のｌ軸配向処理によ
り液晶分子を１軸配向させることができる。またこの−
軸配向膜は、配向膜１５，２５の両方に対して行っても
よいが、場合によっては、その一方のみに行った方が良
好な結果を与える場合がある。It was formed in this way. In a liquid crystal element, liquid crystal molecules can be uniaxially aligned by a conventional l-axis alignment process such as a rubbing process or an oblique evaporation process. Also this-
The axial alignment film may be applied to both the alignment films 15 and 25, but in some cases, applying it to only one of them may give better results.
本発明で用いる基板は、表面にパターン化された透明電
極を有するもので、従来公知のものが使用され、例えば
、ガラスの他、ポリエチレンテレフタレート、ポリブチ
レンテレフタレート等のポリエステルの他、エポキシ樹
脂、フェノール樹脂、ポリイミド、ポリカーボネート、
ポリスルホン、ポリエーテルスルホン、ポリエーテルイ
ミド、アセチルセルロース、ポリアミノ酸エステル、芳
香族ポリアミド等の耐熱性樹脂、ポリスチレン、ポリア
クリル酸エステル、ポリメタクリル酸エステル、ポリア
クリルアミド、ポリエチレン、ポリプロピレン等のビニ
ル系ポリマー、ポリフッ化ビニリデン等の含フツ素樹脂
及びそれらの変性体等から形成されたプラスチックフィ
ルムが挙げられる。The substrate used in the present invention has a patterned transparent electrode on its surface, and conventionally known substrates are used, such as glass, polyester such as polyethylene terephthalate and polybutylene terephthalate, epoxy resin, phenol, etc. resin, polyimide, polycarbonate,
Heat-resistant resins such as polysulfone, polyethersulfone, polyetherimide, acetylcellulose, polyamino acid ester, aromatic polyamide, vinyl polymers such as polystyrene, polyacrylic ester, polymethacrylic ester, polyacrylamide, polyethylene, polypropylene, Examples include plastic films formed from fluorine-containing resins such as polyvinylidene fluoride and modified products thereof.
また、液晶としては、シッフベース系液晶、アゾキシ系
液晶、ビフェニル系液晶、フェニルシクロヘキサン系液
晶、エステル系液晶、ピリミジン系液晶、ターフェニル
系液晶、ビフェニルシクロヘキサン系液晶等が挙げられ
る。これらの液晶は。Examples of the liquid crystal include Schiff base liquid crystal, azoxy liquid crystal, biphenyl liquid crystal, phenylcyclohexane liquid crystal, ester liquid crystal, pyrimidine liquid crystal, terphenyl liquid crystal, and biphenylcyclohexane liquid crystal. These LCDs.
単独又は通常混合物として用いられる。さらにこれらの
液晶に対しては、コレステリルクロリド、コレステリル
ノナエート、コレステリルカーボネート等のコレステリ
ック液晶、英国ブリティッシュドラッグハウス社から商
品名Ｃ−１５、ＣＢ−１５として販売されているような
カイラルネマチック液晶や、テトラアルキルアンモニウ
ム塩のようなイオン性ドーパント等を添加することがで
きる。Used alone or usually as a mixture. Furthermore, for these liquid crystals, cholesteric liquid crystals such as cholesteryl chloride, cholesteryl nonaate, and cholesteryl carbonate, chiral nematic liquid crystals such as those sold by British Drug House under the trade names C-15 and CB-15, Ionic dopants such as tetraalkylammonium salts, etc. can be added.
本発明の液晶素子は、特定の配向膜を用いたことから、
液晶特に強誘電性液晶の配向性が改良され、均一なモノ
ドメイン状態の配向性を示すとともに駆動的のコントラ
スト比が大きく、良好な双安定性を有する。Since the liquid crystal element of the present invention uses a specific alignment film,
The alignment of liquid crystals, particularly ferroelectric liquid crystals, is improved, exhibiting uniform monodomain alignment, a large driving contrast ratio, and good bistability.
（実施例〕 次に本発明を実施例によりさらに詳細に説明する。(Example〕 Next, the present invention will be explained in more detail with reference to Examples.
実施例１
厚さ１．１腸■のガラス板上にＩＴＯを蒸着し、ついで
パターニングして膜厚５００人の透明電極を形成した。Example 1 ITO was deposited on a glass plate with a thickness of 1.1 mm and then patterned to form a transparent electrode with a thickness of 500 mm.
この透明電極上に下記に示される化合物を６０１斜方蒸
着（基板温度１００℃）して膜厚１０００人の配向膜を
形成した。ついで常法により平均粒径１．８μ園のスペ
ーサ（ＳＰ−２０２、積木ファインケミカル■製）、液
晶（強誘電性液晶Ｃ５−１０４、チッソ■製）及び封止
剤（ＤＳＡ−００１、大日本インキ化学工業■製）を導
入して図面に示されるような液晶素子を作成した。On this transparent electrode, a compound shown below was obliquely vapor-deposited (substrate temperature: 100° C.) to form an alignment film with a thickness of 1,000. Next, a spacer (SP-202, manufactured by Tsuchiki Fine Chemical ■) with an average particle size of 1.8μ, a liquid crystal (ferroelectric liquid crystal C5-104, manufactured by Chisso ■), and a sealant (DSA-001, manufactured by Dainippon Ink) were added using a conventional method. (manufactured by Kagaku Kogyo ■) was introduced to create a liquid crystal element as shown in the drawing.
このようよして作成した液晶素子をアイソトロピック状
態から徐冷後４０℃に保った状態で配向性を観察したと
ころ均一なモノドメインを形成していた。When the orientation of the thus prepared liquid crystal device was observed while it was slowly cooled from the isotropic state and kept at 40° C., it was found that uniform monodomains were formed.
また、この状態で電極間に１０Ｖｐｐの電圧を印加して
駆動したところ応答速度１００μｓｅｃ、コントラスト
比１８であり、良好な双安定性を示した。Further, when driven in this state by applying a voltage of 10 Vpp between the electrodes, the response speed was 100 μsec, the contrast ratio was 18, and good bistability was exhibited.
実施例２
実施例１における配向膜材料を下記の化合物に代えた以
外は実施例１と同様にして液晶素子を作成した。Example 2 A liquid crystal element was produced in the same manner as in Example 1 except that the alignment film material in Example 1 was replaced with the following compound.
このようにして作成した液晶素子をアイソトロピック状
態からの徐冷後４０℃に保った状態で配向性を観察した
ところ均一なモノドメインを形成していた。When the orientation of the thus produced liquid crystal element was observed while keeping it at 40° C. after slow cooling from the isotropic state, it was found that uniform monodomains were formed.
また、この状態で電極間に１ＯＶｐｐの電圧を印加して
駆動したところ応答速度１１０μｓｅｃ、コントラスト
比１９であり良好な双安定性を示した・比較例
配向膜として日本合成ゴムｍ製、ポリイミド樹脂ＪＩＢ
−１を使用し１０００人の配向膜をスピンコードにより
形成し、７０ｇ／ａＪの圧力で５回のラビング処理を施
した以外は、実施例１と同様にして液晶素子を作成した
。In addition, when a voltage of 1OVpp was applied between the electrodes in this state and the electrodes were driven, the response speed was 110μsec, the contrast ratio was 19, and good bistability was exhibited. Comparative example The alignment film was made of Nippon Synthetic Rubber M, polyimide resin JIB.
A liquid crystal element was produced in the same manner as in Example 1, except that an alignment film of 1,000 layers was formed using a spin cord using 1000-g/aJ, and the rubbing treatment was performed 5 times at a pressure of 70 g/aJ.
このようにして作成した液晶素子をアイソトロピック状
態からの徐冷後４０℃に保った状態で配向性を観察した
ところジグザグ状の欠陥が複数観察された。また、この
状態で電極間に１０Ｖｐｐの電圧を印加して駆動したと
る応答速度１２０μｓｅｃ、コントラスト比８であり、
双安定性は得られなかった。When the orientation of the thus produced liquid crystal element was observed while keeping it at 40° C. after slow cooling from the isotropic state, a plurality of zigzag defects were observed. In addition, when driven in this state by applying a voltage of 10 Vpp between the electrodes, the response speed was 120 μsec and the contrast ratio was 8.
Bistability was not obtained.
第１図は９強誘電性液晶を用いた本発明の液晶素子の構
成例を示す断面図である。
１１・・・上基板、１３，２３・・・透明電極。
１５．２５・・・配向膜、２１・・・下基板。
図面の浄書
第１図
手 続 補 正 書（方式）
昭和６３年４月を日
特許庁長官 小 川 邦 夫 殿
１、事件の表示
昭和６２年特許願第３３２８６５号
２、発明の名称 液 晶 素 子
３、補正をする者
・氏 名 （６７４） 株式会社 リ コ −６
、補正の対象 「図面」FIG. 1 is a cross-sectional view showing an example of the structure of a liquid crystal element of the present invention using a ferroelectric liquid crystal. 11... Upper substrate, 13, 23... Transparent electrode. 15.25...Alignment film, 21...Lower substrate. Procedure for engraving Figure 1 of the drawings Amendment (method) April 1988, Director General of the Japan Patent Office Kunio Ogawa 1, Indication of the case Patent Application No. 332865 of 1988 2, Title of the invention Liquid crystal element Child 3, Name of person making the correction (674) Ricoh Co., Ltd. -6
, Target of correction “Drawing”
Claims (1)
配向させる配向層とを有し、その間に液晶層を設けてな
る液晶素子において、配向層を形成する成分として下記
一般式で示される化合物を用いたことを特徴とする液晶
素子。 ▲数式、化学式、表等があります▼ （式中、Ｒは水素、ハロゲン、低級アルキル基、低級ア
ルコキシ基、ニトロ基又はカルボキシル基を、ｎ及びｍ
は１〜４の整数を表わす。）(1) In a liquid crystal element that has an electrode and an alignment layer for aligning liquid crystal on the inside of a pair of opposing substrates, and a liquid crystal layer is provided between them, the component forming the alignment layer is represented by the following general formula: A liquid crystal element characterized by using a compound. ▲There are mathematical formulas, chemical formulas, tables, etc.▼ (In the formula, R is hydrogen, halogen, lower alkyl group, lower alkoxy group, nitro group, or carboxyl group, n and m
represents an integer from 1 to 4. )
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33286587A JPH01172929A (en) | 1987-12-28 | 1987-12-28 | Liquid crystal element |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP33286587A JPH01172929A (en) | 1987-12-28 | 1987-12-28 | Liquid crystal element |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH01172929A true JPH01172929A (en) | 1989-07-07 |
Family
ID=18259664
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP33286587A Pending JPH01172929A (en) | 1987-12-28 | 1987-12-28 | Liquid crystal element |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH01172929A (en) |
-
1987
- 1987-12-28 JP JP33286587A patent/JPH01172929A/en active Pending
Similar Documents
| Publication | Publication Date | Title |
|---|---|---|
| JPS6377019A (en) | Ferroelectric liquid crystal element | |
| EP0539992B1 (en) | Liquid crystal device | |
| JPS61249019A (en) | Liquid crystal element | |
| JPH05224241A (en) | Liquid crystal element and display device formed by using this element | |
| US5510159A (en) | Liquid crystal device | |
| US5576864A (en) | Chiral smectic liquid crystal device having fluorine-containing polymeric alignment film with predetermined refractive index anisotropy after rubbing | |
| JPH02126230A (en) | Ferroelectric liquid crystal element | |
| JPH01172929A (en) | Liquid crystal element | |
| JPH01172927A (en) | Liquid crystal element | |
| JPH0743476B2 (en) | Liquid crystal light modulator | |
| JP2869450B2 (en) | Liquid crystal display device | |
| JPH01172928A (en) | Liquid crystal element | |
| JP2692815B2 (en) | Liquid crystal composition and liquid crystal device containing the same | |
| JP2875311B2 (en) | Liquid crystal alignment method | |
| JPH01172926A (en) | Liquid crystal element | |
| JPH01280723A (en) | Liquid crystal element | |
| JPS61186932A (en) | Liquid crystal element | |
| JPH052169A (en) | Production of liquid crystal oriented film | |
| JP2523802B2 (en) | Liquid crystal display element | |
| JP2683222B2 (en) | Liquid crystal composition and liquid crystal device containing the same | |
| JP2636904B2 (en) | Liquid crystal display device | |
| JPS63277295A (en) | Ferroelectric liquid crystal composition | |
| JPS61249022A (en) | Method for controlling orientation of liquid crystal | |
| JPH02103018A (en) | Ferroelectric liquid crystal element | |
| JP2628096B2 (en) | Liquid crystal display device |