JPH083092B2 - Liquid crystal composition - Google Patents

Liquid crystal composition

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Publication number
JPH083092B2
JPH083092B2 JP61151422A JP15142286A JPH083092B2 JP H083092 B2 JPH083092 B2 JP H083092B2 JP 61151422 A JP61151422 A JP 61151422A JP 15142286 A JP15142286 A JP 15142286A JP H083092 B2 JPH083092 B2 JP H083092B2
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Japan
Prior art keywords
liquid crystal
ferroelectric liquid
crystal composition
response
compound
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.)
Expired - Lifetime
Application number
JP61151422A
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Japanese (ja)
Other versions
JPS638478A (en
Inventor
洋 小川
政志 大沢
宣 藤沢
貞夫 竹原
忠生 東海林
誠 佐々木
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Kawamura Institute of Chemical Research
DIC Corp
Original Assignee
Kawamura Institute of Chemical Research
Dainippon Ink and Chemicals Co Ltd
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Priority to JP61151422A priority Critical patent/JPH083092B2/en
Publication of JPS638478A publication Critical patent/JPS638478A/en
Publication of JPH083092B2 publication Critical patent/JPH083092B2/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Description

【発明の詳細な説明】 [産業上の利用分野] 本発明は、新規な液晶組成物、特に強誘電性液晶組成
物に関するものである。
TECHNICAL FIELD The present invention relates to a novel liquid crystal composition, particularly a ferroelectric liquid crystal composition.

本発明の強誘電性液晶組成物は、従来の液晶材料と比
較して、特に高速応答性及びメモリー性にすぐれた液晶
表示素子への利用を有効成らしめるものである。
The ferroelectric liquid crystal composition of the present invention can be effectively used for a liquid crystal display device which is particularly excellent in high-speed response and memory property as compared with conventional liquid crystal materials.

[従来技術] 液晶表示素子はその低電圧作動性、低消費電力性、薄
型表示が可能なこと、受光型で目が疲れないことなどの
すぐれた特徴を有するため、各種表示素子として、広く
用いられている。
[Prior Art] Liquid crystal display elements are widely used as various display elements because they have excellent features such as low voltage operability, low power consumption, thin display capability, and light-receiving type so that eyes do not get tired. Has been.

現在のところ、表示方式としてはTN(Twisted Nemati
c)型と呼ばれるネマチツク液晶を材料として用いるも
のが最も一般的である。しかし、このTN型表示装素子に
おいては、前記のすぐれた特徴をすべて有する反面、CR
Tなど、他の発光型の表示方式と比較すると、応答が非
常に遅いという欠点があった。そのため、テレビ等と動
画面や、高速プリンターのヘッド等、速い応答が必要と
される表示素子への応用においては種々の制約を受けて
いた。
Currently, TN (Twisted Nemati
The most common one is a nematic liquid crystal called type c). However, while this TN type display device has all of the excellent features described above, it has a CR
Compared with other light-emitting display systems such as T, there was a drawback that the response was very slow. Therefore, various restrictions have been imposed in application to display devices such as televisions and moving screens, heads of high-speed printers, and the like that require fast response.

液晶表示素子としては、TN型以外にもゲスト−ホスト
(GH)型、複屈折制御(ECB)型、相転移(PC)型、熱
効果型等が開発されており、それぞれに特徴を有してい
るが、その応答性においては、いずれもTN型と比べて特
に高速応答が得られるものとは言えなかった。これらの
表示素子に対して、高速応答が得られる表示方式として
二周波駆動型が開発され、応答性においてはかなりの改
善がなされたが、それでも充分満足のできるものとは言
い難かった。このため、さらに応答性にすぐれた新しい
表示方式の開発が試みられてきた。
In addition to TN type, guest-host (GH) type, birefringence control (ECB) type, phase transition (PC) type, thermal effect type, etc. have been developed as liquid crystal display elements, and each has its own characteristics. However, in terms of their responsiveness, none of them can be said to be particularly fast in response to the TN type. For these display devices, a dual-frequency drive type was developed as a display system capable of obtaining a high-speed response, and the response was considerably improved, but it was still difficult to say that it was sufficiently satisfactory. For this reason, attempts have been made to develop a new display system that is more responsive.

この目的に沿ったものとして、最近、強誘電性液晶が
発表された(メイヤーら、ジユルナール・ド・フイジー
ク、36 L69(1975))。
Ferroelectric liquid crystals have recently been announced for this purpose (Meyer et al., Journal de Huisique, 36 L69 (1975)).

この強誘電性液晶を利用した表示素子は、従来の液晶
と比較して、100〜1000倍という高速応答と、双安定性
によるメモリー効果が可能であり(クラークら、アプラ
イド・フイジクス・レタース、36 899(1980))、テレ
ビ等の動画像や、高速光シヤツター等をはじめとする多
方面の表示素子への応用が期待できるものである。
Compared with conventional liquid crystals, display devices that use this ferroelectric liquid crystal have a 100 to 1000 times faster response and a memory effect due to bistability (Clark et al., Applied Physics Letters, 36 899 (1980)), can be expected to be applied to display devices in various fields including moving images of televisions and high-speed optical shutters.

強誘電節液晶は、液晶相としてはチルト系のカイラル
スメクチツク相に属するものであり、その中でもカイラ
ススメクチツクC相(以下SC相と略記する)が、最も
低粘性で実用的に望ましいものである。
Ferroelectric nodal liquid crystals belong to the tilt-type chiral smectic phase as the liquid crystal phase, and among them, the chiral smectic C phase (hereinafter abbreviated as SC * phase) has the lowest viscosity and is practically usable. It is desirable.

SC相を示す液晶化合物は、これまでにも検討されて
きており、既に、数多く知られている。
Liquid crystal compounds exhibiting the SC * phase have been studied so far and many are already known.

代表的なものとしては、初めて合成された強誘電性液
晶として知られている(S)−2−メチルブチル・p−
デシルオキシベンジリデンアミノシンナメート(DOBAMB
Cと略称されている)およびその同族体のシツフ塩基系
液晶をあげることができる。これは今でも強誘電性液晶
の物性や配向などの検討用として最もよく用いられる液
晶化合物の1つであって、自発分極やピツチなど強誘電
性液晶において重要な物性値を比較検討する場合の1つ
の基準物質ともなっている。しかしDOBAMBCとその系列
化合物には、光に対する安定性に欠ける水分に対す
る安定性に欠けるそれ自身有色であるSC相を示す
温度範囲が、76゜〜93゜と狭くかつ室温よりはるかに高
い、などの欠点があり実用面からみると満足できるもの
ではなかった。
A typical example is (S) -2-methylbutyl p-, which is known as a ferroelectric liquid crystal synthesized for the first time.
Decyloxybenzylidene aminocinnamate (DOBAMB
Abbreviated as C) and its homologues, Schiff base liquid crystals. This is still one of the most commonly used liquid crystal compounds for studying the physical properties and orientation of ferroelectric liquid crystals, and is used when comparing and comparing important physical property values such as spontaneous polarization and pitch in ferroelectric liquid crystals. It is also a reference substance. However, DOBAMBC and its series of compounds lack the stability to light, lack the stability to moisture, and have a colored SC * phase of their own, which has a narrow temperature range of 76 ° to 93 ° and is much higher than room temperature. However, it was not satisfactory from a practical point of view.

こうした欠点を改良すべく、化学的に安定なエステル
系のものが最近検討されており、既に報告例もある。総
説としては、1)グツドビー他、リキツド・クリスタル
・アンド・オーダード・フリユーイズ、、P1〜2)グ
ツドビー他、モレキユラー・クリスタルズ・アンド・リ
キツド・クリスタルズ、110、175(1984)などをあげる
ことができる。
In order to remedy these drawbacks, chemically stable ester compounds have recently been investigated, and there are already reported cases. Review articles include 1) Goodsbye et al., Liquid Crystal and Ordered Freeise, 4 , P1-2) Goodsbye et al., Morequiller Crystals and Liquid Crystals, 110 , 175 (1984), etc. be able to.

しかし、これらに紹介されている化合物では、分子内
にベンゼン環を2個含むいわゆる2環性のものではSC
相がモノトロピツクであることが多く、また、ベンゼン
環を3個含むいわゆる3環性のものではSC相の温度範
囲が高すぎるというきらいがあった。このためこれらの
化合物は、すべて配合によってその温度域を調整する必
要があった。本発明者らは既に、こうした化合物の特定
の位置にフツ素、塩素等のハロゲン原子を導入すること
によって、その移転温度、特に融点を大きく引き下げ
て、より実用的な強誘電性液晶化合物を得ることができ
ることを報告している(特願昭60−1791、特願昭60−71
628、特願昭60−81688、特願昭60−90676、特願昭60−9
8712など)。
However, the compounds introduced in these are so-called bicyclic compounds containing two benzene rings in the molecule, SC *
The phase is often monotropic, and the temperature range of the SC * phase was too high for so-called tricyclic compounds containing three benzene rings. Therefore, it was necessary to adjust the temperature range of these compounds by blending them. The present inventors have already obtained a more practical ferroelectric liquid crystal compound by introducing a halogen atom such as fluorine or chlorine into a specific position of such a compound to significantly lower the transfer temperature, particularly the melting point. (Japanese Patent Application No. 60-1791, Japanese Patent Application No. 60-71)
628, Japanese Patent Application 60-81688, Japanese Patent Application 60-90676, Japanese Patent Application 60-9
8712).

すでに、エステル系、ハロゲン置換されたエステル系
又はピリミジン骨格を含む強誘電性液晶は配合により室
温を含む広い温度範囲SC相をとることが報告されてい
る。
It has been already reported that a ferroelectric liquid crystal containing an ester type, a halogen-substituted ester type or a pyrimidine skeleton has a SC * phase in a wide temperature range including room temperature depending on the composition.

しかしこれらの室温付近での応答速度は、たかだか0.
5〜1.0msecであり実用上充分なものとは云えない。
However, the response speed near these room temperatures is at most 0.
It is 5 to 1.0 msec, which is not sufficient for practical use.

<本発明が解決しようとする問題点> 強誘電性液晶は、その実用化上、室温を含む広い温度
範囲でSC相をとる事を前提として、高速応答性、大き
な自発分極、適切ならせんピツチ、チルト角やメモリー
性等の諸特性を具備していなければならない。一般的に
液晶は単独化合物で必要な諸特性を満足するものではな
く、各種特性を有する液晶を配合することによって実用
的特性を示すようになる。
<Problems to be Solved by the Present Invention> Ferroelectric liquid crystals have a high speed response, large spontaneous polarization, and proper helical structure for practical use, assuming that they take the SC * phase in a wide temperature range including room temperature. It must have various characteristics such as pitch, tilt angle, and memory property. Generally, a liquid crystal does not satisfy various properties required as a single compound, and practical properties can be exhibited by blending liquid crystals having various properties.

強誘電性液晶に関しても、当然、配合により諸特性を
具備することが必要である。ところが、現在、強誘電性
液晶の配合に関する報告は少なく、SC相の温度範囲拡
大に関して数件(第10回液晶討論会14A09北村、向尾
等;第11回液晶討論会2N20 山口、末永等;特開昭60−
248789など)及びピツト調整に関する報告[Mol.Cryst.
Lip.Cryst.,110(1984)175,J.W.Goodby et.al.]がな
されているにすぎない。しかし、それら配合によって得
られる強誘電性液晶組成物は、室温付近での応答速度が
遅く、実用化に不十分なものである。TV等のデイスプレ
イ用表示素子として要求される100μsec以下の高速応答
性を室温を含む温度範囲で示す強誘電性液晶が強く望ま
れている。
As for the ferroelectric liquid crystal, naturally, it is necessary to have various characteristics by blending. However, there are few reports on the compounding of ferroelectric liquid crystals at present, and there are several cases regarding the expansion of the temperature range of the SC * phase (10th liquid crystal discussion meeting 14A09 Kitamura, Mukai et al .; 11th liquid crystal discussion meeting 2N20 Yamaguchi, Suenaga etc. JP-A-60-
248789) and pit adjustment [Mol. Cryst.
Lip.Cryst., 110 (1984) 175, JWGoodby et.al.]. However, the ferroelectric liquid crystal composition obtained by blending these compounds has a slow response speed near room temperature and is insufficient for practical use. There is a strong demand for a ferroelectric liquid crystal that exhibits a high-speed response of 100 μsec or less required for a display device such as a TV in a temperature range including room temperature.

本発明は、そのような要請にこたえる液晶組成物を提
供するものである。
The present invention provides a liquid crystal composition that meets such a demand.

[問題点を解決する手段] 本発明者等は、強誘電性液晶の室温を含む広い温度範
囲で高速応答性を示す配合条件について鋭意研究を重さ
ねた結果、一般式 (式中、R1は炭素原子数1〜20の直鎖状アルキル基を示
し、R2は炭素原子数2〜8の直鎖状アルキル基又はフエ
ニル基を示し、 又はトランス−1,4−シクロヘキサン環をしめし、Qは
単結合又は−C≡C−を示し、nは0又は1を示し、*
は不斉炭素原子を示す。但し、Qが単結合を示す且つR2
が炭素原子数2〜8の直鎖状アルキル基を表わす場合、
nは1であり且つ 表わすことはない。
[Means for Solving Problems] The inventors of the present invention have earnestly studied the compounding conditions of the ferroelectric liquid crystal showing a high-speed response in a wide temperature range including room temperature, and as a result, the general formula (In the formula, R 1 represents a linear alkyl group having 1 to 20 carbon atoms, R 2 represents a linear alkyl group having 2 to 8 carbon atoms or a phenyl group, Or a trans-1,4-cyclohexane ring, Q is a single bond or -C≡C-, n is 0 or 1, and *
Represents an asymmetric carbon atom. However, Q represents a single bond and R 2
Represents a linear alkyl group having 2 to 8 carbon atoms,
n is 1 and I will not show it.

で表わされる少なくとも1種の化合物を強誘電性液晶又
は強誘電性液晶組成物に0.1〜50重量%配合することに
より、その応答速度を大幅に改善し得ることを見出し
た。例えば、添付図面の図−1には、化合物(I)をエ
ステル系強誘電性液晶組成物に添加した時の25℃におけ
る化合物(I)の濃度(重量%)と応答特速度及びSC
−SA相転移温度(但しSAはスメクチツクA相を表わす)
との関係が示されているが、それによると、化合物の配
合量には制限があり、0.1〜50重量%、望ましくは1〜2
0重量%配合された場合に室温付近において実用的高速
応答性能を示す強誘電性液晶組成物が得られることが判
る。
It has been found that the response speed can be significantly improved by incorporating 0.1 to 50% by weight of a ferroelectric liquid crystal or a ferroelectric liquid crystal composition with at least one compound represented by For example, in FIG. 1 of the accompanying drawings, the concentration (wt%) of compound (I) at 25 ° C., the response speed and SC * when compound (I) is added to an ester-based ferroelectric liquid crystal composition are shown .
-SA phase transition temperature (however, SA stands for smectic A phase)
However, there is a limit to the compounding amount of the compound, and 0.1-50% by weight, preferably 1-2
It can be seen that when 0% by weight is compounded, a ferroelectric liquid crystal composition showing a practical high-speed response performance near room temperature can be obtained.

本発明化合物(I)の好適な化合物(A〜E)を化学
式にて例示すれば、次の通りである。
The preferred compounds (A to E) of the compound (I) of the present invention are shown by the chemical formulas as follows.

(式中、 はトランス1,4−シクロヘキサン環を示し、 *は不斉炭素原子を示す。) 本発明においては、添加の対象となる強誘電性液晶又
は強誘電性液晶組成物は、特に限定されることなく広範
囲に選ばれる。しかし、実用的な面からは、一般式 (式中、R1は炭素原子数1〜20のアルキル基又はアルコ
キシル基又はアルカノイロシル基を示し、Qは単結合、
−COO−、 −CH=N−、−N=CH−、 又は−CH=CH−を示し、Yは単結合又は−COO−、 −O−又は−CH=CH−COO−を示し、R2は不斉炭素を含
むアルキル基又はハロゲン化アルキル基を示し、X1及び
X2はH又はF,Cl等のハロゲン原子又は−OH基を示し、n
及びmは0〜3より選ばれる整数であってどちらも同時
にゼロであることはない。) で示されるエステル系強誘電性液晶、ピリミジン系強誘
電性液晶、シツフ塩基系強誘電性液晶及びそれらの混合
物が好ましい。特ち、化合物(II)の強誘電性液晶に化
合物(I)を配合すると、室温を含む広い温度範囲でSC
相を示す強誘電性液晶組成物が得られる。
(In the formula, Indicates a trans 1,4-cyclohexane ring, and * indicates an asymmetric carbon atom. In the present invention, the ferroelectric liquid crystal or the ferroelectric liquid crystal composition to be added is selected in a wide range without particular limitation. However, from a practical point of view, the general formula (In the formula, R 1 represents an alkyl group, an alkoxyl group, or an alkanoylyl group having 1 to 20 carbon atoms, Q is a single bond,
-COO-, -CH = N-, -N = CH-, Or -CH = CH-, Y is a single bond or -COO-, -O- or -CH = CH-COO- is shown, R 2 is an alkyl group containing an asymmetric carbon or a halogenated alkyl group, X 1 and
X 2 represents H or a halogen atom such as F or Cl or a —OH group, and n
And m are integers selected from 0 to 3, and neither is zero at the same time. The ester-based ferroelectric liquid crystal, the pyrimidine-based ferroelectric liquid crystal, the Schiff base-based ferroelectric liquid crystal, and a mixture thereof are preferable. In particular, compounding the ferroelectric liquid crystal of compound (II) with compound (I) results in SC over a wide temperature range including room temperature.
* A ferroelectric liquid crystal composition exhibiting a phase is obtained.

[発明の作用] 化合物(I)を含む強誘電性液晶組成物を、ポリイミ
ドが塗布されてラビング配向処理されたI.T.Oガラスセ
ルを注入し、温度勾配法にて配向させ、20V,50Hzの矩形
波を印加して応答速度を測定したところ、25℃において
100μsec以下という高速応答性を示すことが見出され
た。従って、本発明の強誘電性液晶組成物は、液晶表示
用素子として充分実用域に達するものである。
[Function of the Invention] A ferroelectric liquid crystal composition containing the compound (I) is injected into an ITO glass cell which is coated with polyimide and subjected to rubbing alignment treatment, and is aligned by a temperature gradient method to obtain a 20 V, 50 Hz rectangular wave. The response speed was measured by applying
It was found to exhibit a high-speed response of 100 μsec or less. Therefore, the ferroelectric liquid crystal composition of the present invention reaches a practical range as a liquid crystal display device.

[実施例] 以下、実施例によって本発明を具体的に説明するが、
本発明の主旨と適用範囲はこれらの実施例によって限定
されるものではない。
[Examples] Hereinafter, the present invention will be described specifically with reference to Examples.
The spirit and scope of application of the present invention is not limited by these examples.

実施例1 化合物(A)を一般式(II)で示される4種の化合物
で構成される配合組成物(F) に10%添加して成る強誘電性液晶組成物を、ポリイミド
塗膜を有し、ラビング配向処理を施された厚さ3.1μm
のI.T.O.ガラスセルに注入し、温度勾配法にて配向さ
せ、20V,50Hzの矩形波を印加し、応答速度を測定した。
この時の測定温度と応答速度との関係を図−2に示す
が、図−2より判るように、室温域(25℃)において、
120μsecという速い、即ち元の組成物(F)にくらべて
6倍余も速い、応答速度が得られた。また、この時の強
誘電性液晶組成物のSC相温度範囲は、−5〜56℃と広
範囲であった。
Example 1 A compounded composition (F) in which the compound (A) is composed of four compounds represented by the general formula (II). A ferroelectric liquid crystal composition made by adding 10% to the above has a polyimide coating film and is subjected to a rubbing orientation treatment to a thickness of 3.1 μm.
Was injected into the ITO glass cell of, and oriented by the temperature gradient method, a rectangular wave of 20 V and 50 Hz was applied, and the response speed was measured.
Figure 2 shows the relationship between the measured temperature and the response speed at this time. As can be seen from Figure 2, in the room temperature range (25 ° C),
The response speed was as fast as 120 μsec, that is, about 6 times faster than the original composition (F). The SC * phase temperature range of the ferroelectric liquid crystal composition at this time was as wide as −5 to 56 ° C.

実施例2 化合物(A)を、下式(G) で示される強誘電性液晶に10%添加し、実施例1と同様
に2.7μmの厚さセルで応答速度を測定したところ、25
℃で93μsecという非常に速い応答速度を示した。この
速度は元の強誘電性液晶の13倍の速さであった。また、
この時の組成物のSC相温度範囲は、3〜76℃と広範囲
であった。
Example 2 The compound (A) was prepared according to the following formula (G) 10% was added to the ferroelectric liquid crystal shown by, and the response speed was measured in the same manner as in Example 1 in a 2.7 μm thick cell.
It showed a very fast response time of 93 μsec at ℃. This speed was 13 times faster than the original ferroelectric liquid crystal. Also,
The SC * phase temperature range of the composition at this time was as wide as 3 to 76 ° C.

実施例3〜7 実施例1で示した強誘電性液晶組成物(F)に、各種
化合物(I)を10%添加したときのSC相温度範囲と25
℃における応答速度を表−1に示す。
Examples 3 to 7 SC * phase temperature range and 25 when the compound (I) of 10% was added to the ferroelectric liquid crystal composition (F) shown in Example 1.
Table 1 shows the response speed at ° C.

実施例8 実施例1で示された化合物(B)を、下式(H) で示される強誘電性液晶化合物に10%添加し、実施例1
と同様に2.5μm厚のセルに注入し、応答速度を測定し
たところ、65℃において80μsecの応答性を示した。ま
た、この組成物のSC相温度範囲は、55〜87℃であっ
た。
Example 8 The compound (B) shown in Example 1 was converted to the following formula (H) 10% was added to the ferroelectric liquid crystal compound represented by
It was injected into a cell having a thickness of 2.5 μm in the same manner as in, and the response speed was measured. The response was 80 μsec at 65 ° C. The SC * phase temperature range of this composition was 55 to 87 ° C.

一方、化合物(B)を添加しない場合の応答速度は、
65℃において180μsecであった。
On the other hand, the response speed when the compound (B) is not added is
It was 180 μsec at 65 ° C.

[発明の効果] 本発明により、現在までに開発された種々の強誘電性
液晶又は強誘電性液晶組成物の応答速度を大巾に改善す
ることが可能となった。特に、室温を含む温度領域にお
いて100μsec前後の高速応答性を示す強誘電組成物を得
ることができた。その結果、従来にない高速応答性の液
晶表示素子の製作が可能となったので、本発明が強誘電
性液晶の本格的な実用化に寄与し得る効果は大きい。
[Advantages of the Invention] The present invention has made it possible to greatly improve the response speed of various ferroelectric liquid crystals or ferroelectric liquid crystal compositions developed to date. In particular, it was possible to obtain a ferroelectric composition exhibiting a high-speed response of about 100 μsec in a temperature range including room temperature. As a result, it has become possible to manufacture a liquid crystal display device having a high-speed response which has not been available in the past, so that the present invention has a great effect that it can contribute to the full-scale practical application of the ferroelectric liquid crystal.

図面−1 化合物(I)を強誘電性液晶組成物(F)に
添加した時の化合物(I)の濃度と応答速度及びSC
SA転移温度の関係を示す。
Drawing-1 Concentration and response speed of compound (I) and SC * when compound (I) is added to ferroelectric liquid crystal composition (F)
The relationship of SA transition temperature is shown.

図面−2 実施例1に示す組成物の温度と応答速度の関
係を示す。
Drawing 2 shows the relationship between the temperature and the response speed of the composition shown in Example 1.

【図面の簡単な説明】[Brief description of drawings]

図−1は化合物(I)を強誘電性液晶組成物(F)に添
加した場合における化合物(I)の濃度と応答速度及び
SC−SA相転移温度との関係を示すグラフであり、図−
2は実施例1の組成物の温度と応答速度との関係を示す
グラフである。
FIG. 1 shows the concentration and response speed of compound (I) when compound (I) was added to the ferroelectric liquid crystal composition (F).
SC * -SA is a graph showing the relationship with SA phase transition temperature.
2 is a graph showing the relationship between the temperature and the response speed of the composition of Example 1.

───────────────────────────────────────────────────── フロントページの続き (51)Int.Cl.6 識別記号 庁内整理番号 FI 技術表示箇所 // G02F 1/13 500 (72)発明者 竹原 貞夫 埼玉県与野市大戸663−5 東海浦和マン シヨン307号 (72)発明者 東海林 忠生 東京都練馬区大泉町3−13−6 (72)発明者 佐々木 誠 埼玉県浦和市太田窪1−24−9 (56)参考文献 特開 昭62−89643(JP,A) 特表 昭62−502620(JP,A)─────────────────────────────────────────────────── ─── Continuation of the front page (51) Int.Cl. 6 Identification number Internal reference number FI technical display location // G02F 1/13 500 (72) Inventor Sadao Takehara 663-5 Odo, Yono-shi, Saitama Tokai Urawaman Syon 307 (72) Inventor Tadao Tokaibayashi 3-13-6 Oizumi-cho, Nerima-ku, Tokyo (72) Inventor Makoto Sasaki 1-24-9 Otakubo, Urawa-shi, Saitama (56) Reference JP-A 62-89643 (JP, A) Special table Sho 62-502620 (JP, A)

Claims (1)

【特許請求の範囲】[Claims] 【請求項1】一般式 (式中、R1は炭素原子数1〜20の直鎖状アルキル基を示
し、R2は炭素原子数2〜8の直鎖状アルキル基又はフエ
ニル基を示し、 又はトランス−1,4−シクロヘキサン環を示し、Qは単
結合又は−C≡C−を示し、nは0又は1を示し、*は
不斉炭素原子を示す。 但し、Qが単結合を示し且つR2が炭素原子数2〜8の直
鎖状アルキル基を表わす場合、nは1であり且つ を表わすことはない。) で表わされる少なくとも1種の化合物が、強誘電性液晶
又は強誘電性液晶組成物に0.1〜50重量%配合されて成
ることを特徴とする改善された応答速度を有する強誘電
性液晶組成物。
1. A general formula (In the formula, R 1 represents a linear alkyl group having 1 to 20 carbon atoms, R 2 represents a linear alkyl group having 2 to 8 carbon atoms or a phenyl group, Or a trans-1,4-cyclohexane ring, Q is a single bond or -C≡C-, n is 0 or 1, and * is an asymmetric carbon atom. However, when Q represents a single bond and R 2 represents a linear alkyl group having 2 to 8 carbon atoms, n is 1 and Is not represented. ) A ferroelectric liquid crystal composition having an improved response speed, characterized in that at least one compound represented by the formula (1) is blended with a ferroelectric liquid crystal or a ferroelectric liquid crystal composition in an amount of 0.1 to 50% by weight. .
JP61151422A 1986-06-30 1986-06-30 Liquid crystal composition Expired - Lifetime JPH083092B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP61151422A JPH083092B2 (en) 1986-06-30 1986-06-30 Liquid crystal composition

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP61151422A JPH083092B2 (en) 1986-06-30 1986-06-30 Liquid crystal composition

Publications (2)

Publication Number Publication Date
JPS638478A JPS638478A (en) 1988-01-14
JPH083092B2 true JPH083092B2 (en) 1996-01-17

Family

ID=15518274

Family Applications (1)

Application Number Title Priority Date Filing Date
JP61151422A Expired - Lifetime JPH083092B2 (en) 1986-06-30 1986-06-30 Liquid crystal composition

Country Status (1)

Country Link
JP (1) JPH083092B2 (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN106574725B (en) 2014-09-04 2019-04-16 伊格尔工业股份有限公司 Mechanical sealing member

Family Cites Families (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB8520715D0 (en) * 1985-08-19 1985-09-25 Secr Defence Secondary alcohol derivatives

Also Published As

Publication number Publication date
JPS638478A (en) 1988-01-14

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