JPH10231482A - Liquid crystal composition and liquid crystal display element - Google Patents
Liquid crystal composition and liquid crystal display elementInfo
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- JPH10231482A JPH10231482A JP9141205A JP14120597A JPH10231482A JP H10231482 A JPH10231482 A JP H10231482A JP 9141205 A JP9141205 A JP 9141205A JP 14120597 A JP14120597 A JP 14120597A JP H10231482 A JPH10231482 A JP H10231482A
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- Prior art keywords
- liquid crystal
- compound
- group
- component
- crystal composition
- Prior art date
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Abstract
Description
【0001】[0001]
【発明の属する技術分野】本発明は、透明電極を有する
2枚の基板で形成される密閉セル中に設けられた、少な
くとも1種のカイラル添加物を含むネマチック液晶組成
物およびその液晶組成物を用いた液晶表示素子に関す
る。さらに詳しくはアクティブマトリックスLCD用の
液晶組成物およびその組成物を用いた液晶表示素子に関
する。The present invention relates to a nematic liquid crystal composition containing at least one kind of chiral additive and a liquid crystal composition provided in a closed cell formed of two substrates having transparent electrodes. The present invention relates to a liquid crystal display element used. More specifically, the present invention relates to a liquid crystal composition for an active matrix LCD and a liquid crystal display device using the composition.
【0002】[0002]
【従来の技術】液晶表示素子(LCD)は、CRT(ブ
ラウン管方式ディスプレイ)に比べて、低消費電力、小
型化、軽量化が可能であるために、ツイストネマチック
(TN)方式、スーパーツイストネマチック(STN)
方式、薄膜トランジスター(TFT)方式等の種々のL
CDが実用化されてきた。その中で薄膜トランジスター
(TFT)等のアクティブマトリックスLCD(AM−
LCD)は、カラー化、高精細化が進みフラットディス
プレイの本命として注目をあびている。2. Description of the Related Art A liquid crystal display (LCD) has a lower power consumption, a smaller size and a lighter weight than a CRT (CRT display), and therefore has a twisted nematic (TN) type and a super twisted nematic (LCD). STN)
Various types of L such as a thin film transistor (TFT) method
CDs have been put into practical use. Among them, active matrix LCDs (AM-
LCD) has attracted attention as a favorite of flat displays as colorization and definition have progressed.
【0003】このAM−LCD用液晶組成物に求められ
ている特性として、 1)LCDの高コントラストを維持するために、電圧保
持率(V.H.R)が高いこと。 2)使用環境に応じて、ネマチック液晶相範囲が大きい
こと。 3)セル厚に応じて、適当な屈折率異方性(Δn)を取
り得ること。 4)駆動回路に応じて、適当なしきい値電圧を取り得る
こと。 を挙げることができる。[0003] The characteristics required of the liquid crystal composition for AM-LCD are as follows: 1) A high voltage holding ratio (VHR) in order to maintain a high contrast of the LCD. 2) The nematic liquid crystal phase range is large depending on the use environment. 3) An appropriate refractive index anisotropy (Δn) can be obtained depending on the cell thickness. 4) An appropriate threshold voltage can be obtained according to the drive circuit. Can be mentioned.
【0004】AM−LCDの動作方式としては上下基盤
における液晶分子の配向を90゜にツイストさせたTN
表示方式を採用している。このTN表示方式において
は、電圧を印加しない時の液晶セルの干渉による着色を
防ぎ、最適なコントラストを得る為に、屈折率異方性
(Δn)とセル厚(d)μmの積Δn・dをある一定の
値(例えばΔn・d=0.5μm等)に設定する必要が
ある。このような制限のもとで現在実用化されているT
FT用液晶組成物のΔnは1st.Min.系で0.0
7〜0.11程度、とりわけ0.08〜0.10が主体
となっている。As an operation method of the AM-LCD, a TN in which the orientation of liquid crystal molecules on the upper and lower substrates is twisted by 90 °.
The display method is adopted. In the TN display system, in order to prevent coloring due to interference of the liquid crystal cell when no voltage is applied and to obtain an optimum contrast, the product Δn · d of the refractive index anisotropy (Δn) and the cell thickness (d) μm Must be set to a certain value (for example, Δn · d = 0.5 μm). Under such restrictions, T which is currently in practical use
Δn of the liquid crystal composition for FT is 1st. Min. 0.0 in system
About 7 to 0.11, especially 0.08 to 0.10.
【0005】また、近年、小型軽量で携帯できることを
特徴としたノート型パーソナルコンピュ−ター等が開発
され、LCDの用途が広がってきた。携帯用を目的とし
たLCDは、駆動電源によって特性の制約を受ける。長
時間使用するためには消費電力を小さくする必要がある
ので、しきい値電圧の小さい液晶組成物が要求されるよ
うになった。また、さらに駆動電源を軽量化、低コスト
化するためにも、しきい値電圧の小さい液晶が要求され
るようになった。In recent years, notebook personal computers and the like characterized by being small and lightweight and portable have been developed, and applications of LCDs have been widened. LCDs intended for portable use are limited in characteristics by the drive power supply. Since it is necessary to reduce power consumption for long-term use, a liquid crystal composition having a low threshold voltage has been required. Further, in order to further reduce the weight and cost of the driving power supply, a liquid crystal having a small threshold voltage has been required.
【0006】また、携帯化に伴って、屋外での使用を目
的とした開発も検討されるようになってきた。屋外での
使用に耐え得るには、使用環境の温度範囲を超えた領域
にわたってネマチック相を呈することが要求される。こ
のような観点から現在実用化されているTFT用液晶組
成物のネマチックーアイソトロピック相転移温度(透明
点:Tni)が60℃以上、スメクチック−ネマチック相
転移温度(TSN)が−20℃以下が主体である。[0006] Further, along with the portability, development for outdoor use has been studied. In order to be able to withstand outdoor use, it is required to exhibit a nematic phase over a region beyond the temperature range of the use environment. From this point of view, the nematic-isotropic phase transition temperature (clearing point: T ni ) of the liquid crystal composition for TFT currently practically used is 60 ° C. or more, and the smectic-nematic phase transition temperature (TSN) is −20 ° C. or less. Is the subject.
【0007】このような背景に伴って、特開平2−23
3626号公報には、誘電率異方性(Δε)の比較的大
きいトリフルオロ化合物が開示されている。例えば応用
例2には、トリフルオロ化合物15重量%とジフルオロ
化合物85重量%との組成物例が開示されているが、し
きい値電圧が大きく、また特に低温における相溶性が悪
く、ネマチック液晶相の範囲が狭いために実用性に欠け
ているという欠点を有している。このように液晶組成物
は種々の目的に応じて鋭意検討されてはいるものの、常
に新規な改良を要求されているのが現状である。With this background, Japanese Patent Laid-Open No. 2-23 / 1990
Japanese Patent No. 3626 discloses a trifluoro compound having a relatively large dielectric anisotropy (Δε). For example, Application Example 2 discloses an example of a composition containing 15% by weight of a trifluoro compound and 85% by weight of a difluoro compound, but has a large threshold voltage, poor compatibility at low temperatures, and a nematic liquid crystal phase. Is not practical because of the narrow range. As described above, although the liquid crystal composition has been intensively studied for various purposes, it is presently demanding a new improvement.
【0008】[0008]
【発明が解決しようとする課題】本発明の目的は、上記
AM−LCD用液晶組成物に求められる種々の特性を満
たしながら、特に、しきい値電圧の小さい、且つ低温相
溶性に優れネマチック相範囲の大きい液晶組成物を提供
することにある。本発明者らは、これらの課題を解決す
べく種々の液晶化合物を用いた組成物を鋭意検討した結
果、本発明の液晶組成物をAM−LCDに使用する場合
に、この目的を達成できることを見い出した。SUMMARY OF THE INVENTION It is an object of the present invention to provide a liquid crystal composition for an AM-LCD which satisfies various characteristics required, in particular, has a low threshold voltage, a good low-temperature compatibility, and a nematic phase. It is to provide a liquid crystal composition having a large range. The present inventors have intensively studied compositions using various liquid crystal compounds in order to solve these problems, and as a result, have found that when the liquid crystal composition of the present invention is used for an AM-LCD, this object can be achieved. I found it.
【0009】[0009]
【課題を解決するための手段】本発明の第1の発明は、
第1成分として、一般式(I−1)〜(I−6)からな
る化合物群から選択される化合物を少なくとも1種類含
有し、第2成分として、一般式(II−1)〜(II−4)
からなる化合物群から選択される化合物を少なくとも1
種類含有することを特徴とする液晶組成物に関する。Means for Solving the Problems A first invention of the present invention is:
The first component contains at least one compound selected from the compound group consisting of the general formulas (I-1) to (I-6), and the second component has the general formulas (II-1) to (II-). 4)
At least one compound selected from the group consisting of
The present invention relates to a liquid crystal composition characterized by containing various kinds.
【0010】[0010]
【化4】 Embedded image
【0011】(式中、Rは炭素数1〜10のアルキル基
を示し、Z1、Z2、Z3、Z4は各々独立して−CH2C
H2−または単結合を示し、環(A)はトランス−1,
4−シクロヘキシレン、または1,4−フェニレンを示
し、環(B)は1,3−ジオキサン−2,5−ジイル、
または側位HがFで置換されてもよい1,4−フェニレ
ンを示し、環(C)はトランス−1,4−シクロヘキシ
レン、または側位HがFで置換されても良い1,4−フ
ェニレンを示し、XはF、OCF3、CF3、OCH
F2、またはClを示し、Y1、Y2は各々独立してHま
たはFを示す。また、これらの化合物を構成する各原子
は、その同位体原子で置換されていてもよい。) 本発明の第2の発明は、液晶組成物の全重量に対して、
第1成分が3〜40重量%、第2成分が60〜97重量
%であることを特徴とする上記第1の発明に記載の液晶
組成物に関する。(Wherein, R represents an alkyl group having 1 to 10 carbon atoms, and Z 1 , Z 2 , Z 3 , and Z 4 each independently represent -CH 2 C
H 2 — or a single bond; ring (A) is trans-1,
Represents 4-cyclohexylene or 1,4-phenylene, and ring (B) is 1,3-dioxane-2,5-diyl;
Or a 1,4-phenylene in which the side position H is optionally substituted with F, and the ring (C) is trans-1,4-cyclohexylene, or a 1,4-phenylene in which the side position H is optionally substituted with F. X represents F, OCF 3 , CF 3 , OCH
It represents F 2 or Cl, and Y 1 and Y 2 each independently represent H or F. Further, each atom constituting these compounds may be substituted with its isotope atom. The second invention of the present invention relates to a liquid crystal composition,
The liquid crystal composition according to the first aspect, wherein the first component is 3 to 40% by weight and the second component is 60 to 97% by weight.
【0012】本発明の第3の発明は、第1成分として、
前記一般式(I−1)〜(I−6)からなる化合物群か
ら選択される化合物を少なくとも1種類含有し、第2成
分として、前記一般式(II−1)〜(II−4)からなる
化合物群から選択される化合物を少なくとも1種類含有
し、第3成分として、一般式(III) で表わされる化合
物群から選択される化合物を少なくとも1種類含有する
ことを特徴とする液晶組成物に関する。[0012] The third invention of the present invention provides, as a first component,
It contains at least one compound selected from the compound group consisting of the general formulas (I-1) to (I-6), and as the second component, the compound represented by the general formulas (II-1) to (II-4) A liquid crystal composition comprising at least one compound selected from the group consisting of the following compounds and at least one compound selected from the group of compounds represented by formula (III) as the third component: .
【0013】[0013]
【化5】 Embedded image
【0014】(式中、Rは炭素数1〜10のアルキル基
を示し、Z5は−CH2CH2−、−COO−または単結
合を示し、XはF、OCF3、CF3、OCHF2、また
はClを示し、Y1、Y2は各々独立してHまたはFを示
す。また、これらの化合物を構成する各原子は、その同
位体原子で置換されていてもよい。) 本発明の第4の発明は、第1成分として、前記一般式
(I−1)〜(I−6)からなる化合物群から選択され
る化合物を少なくとも1種類含有し、第2成分として、
前記一般式(II−1)〜(II−4)からなる化合物群か
ら選択される化合物を少なくとも1種類含有し、第3成
分として、一般式(IV−1)〜(IV−4)からなる化合
物群から選択される化合物を少なくとも1種類含有する
ことを特徴とする液晶組成物に関する。(Wherein, R represents an alkyl group having 1 to 10 carbon atoms, Z 5 represents —CH 2 CH 2 —, —COO— or a single bond, and X represents F, OCF 3 , CF 3 , OCHF 2 or Cl, and Y 1 and Y 2 each independently represent H or F. Further, each atom constituting these compounds may be substituted with its isotope atom.) The fourth invention contains, as a first component, at least one compound selected from the compound group consisting of the general formulas (I-1) to (I-6), and as a second component,
It contains at least one compound selected from the compound group consisting of the general formulas (II-1) to (II-4), and has a third component consisting of the general formulas (IV-1) to (IV-4) The present invention relates to a liquid crystal composition containing at least one compound selected from a compound group.
【0015】[0015]
【化6】 Embedded image
【0016】(式中、Rは炭素数1〜10のアルキル基
を示し、Z6は−CH2CH2−または単結合を示し、X
はF、OCF3、CF3、OCHF2、またはClを示
し、Y1、Y2は各々独立してHまたはFを示す。また、
これらの化合物を構成する各原子は、その同位体原子で
置換されていてもよい。) 本発明の第5の発明は、第1成分として、前記一般式
(I−1)〜(I−6)からなる化合物群から選択され
る化合物を少なくとも1種類含有し、第2成分として、
前記一般式(II−1)〜(II−4)からなる化合物群か
ら選択される化合物を少なくとも1種類含有し、第3成
分として、前記一般式(III) で表わされる化合物群か
ら選択される化合物を少なくとも1種類含有し、第4成
分として、前記一般式(IV−1)〜(IV−4)からなる
化合物群から選択される化合物を少なくとも1種類含有
することを特徴とする液晶組成物に関する。(Wherein, R represents an alkyl group having 1 to 10 carbon atoms; Z 6 represents —CH 2 CH 2 — or a single bond;
Represents F, OCF 3 , CF 3 , OCHF 2 or Cl, and Y 1 and Y 2 each independently represent H or F. Also,
Each atom constituting these compounds may be substituted with its isotope atom. The fifth invention according to the present invention, wherein the first component contains at least one compound selected from the compound group consisting of the general formulas (I-1) to (I-6), and the second component comprises
It contains at least one compound selected from the compound group consisting of the general formulas (II-1) to (II-4), and is selected from the compound group represented by the general formula (III) as the third component. A liquid crystal composition comprising at least one compound and at least one compound selected from the compound group consisting of the general formulas (IV-1) to (IV-4) as a fourth component. About.
【0017】本発明の第6の発明は、前記第1〜第5の
発明のいずれかに記載の液晶組成物を用いた液晶表示素
子に関する。以下、本発明の各成分を構成する化合物に
ついて説明する。本発明において一般式(I−4)で表
される化合物として、以下の化合物が好ましく用いられ
る。A sixth aspect of the present invention relates to a liquid crystal display device using the liquid crystal composition according to any one of the first to fifth aspects. Hereinafter, the compounds constituting each component of the present invention will be described. In the present invention, the following compounds are preferably used as the compound represented by the general formula (I-4).
【0018】[0018]
【化7】 Embedded image
【0019】これらの式において、RおよびXは前述で
定義した通りである。一般式(II−1)〜(II−4)で
表される化合物として、以下の化合物が好ましく用いら
れる。In these formulas, R and X are as defined above. As the compounds represented by the general formulas (II-1) to (II-4), the following compounds are preferably used.
【0020】[0020]
【化8】 Embedded image
【0021】[0021]
【化9】 Embedded image
【0022】[0022]
【化10】 Embedded image
【0023】[0023]
【化11】 Embedded image
【0024】これらの式において、RおよびXは前述で
定義した通りである。一般式(III) で表される化合物
として、以下の化合物が好ましく用いられる。In these formulas, R and X are as defined above. As the compound represented by the general formula (III), the following compounds are preferably used.
【0025】[0025]
【化12】 Embedded image
【0026】R、Xは前述で定義した通りである。一般
式(IV−3)で表される化合物として、以下の化合物が
好ましく用いられる。R and X are as defined above. As the compound represented by the general formula (IV-3), the following compounds are preferably used.
【0027】[0027]
【化13】 Embedded image
【0028】一般式(I−1)、(I−2)、(I−
3)、(I−5)および(I−6)の化合物は、誘電率
異方性(Δε)がおおよそ16〜25の範囲にあり、熱
安定性、化学的安定性に優れているので、特にTFT用
液晶組成物のしきい値電圧を小さくする役割を担う。一
般式(II−1)〜(II−4)、(III)、(IV−1)〜
(IV−4)の化合物は、Δεがおおよそ6〜16の範囲
にあり、熱的安定性、化学的安定性に優れているので低
電圧TFT用化合物として良く知られている化合物であ
る。Formulas (I-1), (I-2) and (I-
The compounds of 3), (I-5) and (I-6) have a dielectric anisotropy (Δε) in the range of about 16 to 25 and are excellent in thermal stability and chemical stability. In particular, it plays a role in reducing the threshold voltage of the liquid crystal composition for TFT. General formulas (II-1) to (II-4), (III), (IV-1)
The compound (IV-4) is a compound well known as a compound for a low-voltage TFT because Δε is approximately in the range of 6 to 16 and is excellent in thermal stability and chemical stability.
【0029】一般式(II−1)〜(II−4)の化合物は
ネマチック−アイソトロピック転移点(透明点:TNI)
がおおよそ50〜100℃の範囲にあり、低電圧TFT
用組成物のベース化合物としては、最適な化合物であ
る。本発明の第1成分の使用量は3〜40重量%が好ま
しい。3重量%未満であれば、本願発明の主題である低
電圧の効果が得にくいし、40重量%を超えると、液晶
組成物の低温における相溶性が悪くなる場合があり好ま
しくない。The compounds of the general formulas (II-1) to (II-4) have a nematic-isotropic transition point (clearing point: T NI ).
Is in the range of about 50-100 ° C, and low-voltage TFT
It is the most suitable compound as a base compound of the composition for use. The use amount of the first component of the present invention is preferably 3 to 40% by weight. If it is less than 3% by weight, the effect of low voltage, which is the subject of the present invention, is difficult to obtain, and if it exceeds 40% by weight, the compatibility of the liquid crystal composition at low temperatures may be poor, which is not preferable.
【0030】本発明の第2成分の使用量は60〜97重
量%が好ましい。60重量%未満だと液晶組成物の低温
における相溶性が悪くなることがあり好ましくない。ま
た97重量%を超えると本願発明の低電圧の効果が得に
くい。一般式(III) の化合物は2環の化合物であるの
で、主として液晶組成物の粘度を下げる役割を担う。2
環化合物であるので多量に使用すると液晶組成物の透明
点が下がる場合がある。一般式(III) の化合物の使用
量は20重量%以下が好ましい。The use amount of the second component of the present invention is preferably 60 to 97% by weight. If the content is less than 60% by weight, the compatibility of the liquid crystal composition at low temperatures may deteriorate, which is not preferable. On the other hand, when the content exceeds 97% by weight, it is difficult to obtain the low voltage effect of the present invention. Since the compound of the general formula (III) is a bicyclic compound, it plays a role mainly in lowering the viscosity of the liquid crystal composition. 2
Since it is a ring compound, the use of a large amount thereof may lower the clearing point of the liquid crystal composition. The use amount of the compound of the general formula (III) is preferably 20% by weight or less.
【0031】一般式(IV−1)〜(IV−4)の化合物
は、4環のトリフルオロ化合物であるので、特に液晶組
成物の透明点を上げる役割を持つが、4環化合物である
ために多量に使用すると液晶組成物のしきい値電圧が大
きくなる場合もあり、また低温相溶性が悪くなることが
あり好ましくない。一般式(IV−1)〜(IV−4)の化
合物の使用量は20重量%以下が好ましい。The compounds of the general formulas (IV-1) to (IV-4) are four-ring trifluoro compounds, and therefore have a role of particularly increasing the clearing point of the liquid crystal composition. When used in a large amount, the threshold voltage of the liquid crystal composition may increase, and the low-temperature compatibility may deteriorate, which is not preferable. The use amount of the compounds of the general formulas (IV-1) to (IV-4) is preferably 20% by weight or less.
【0032】本発明の組成物には、発明の目的を損なわ
ない範囲で前記した一般式で表される化合物以外の化合
物を混合して使用することができる。また、本発明で
は、OCB(Optically Compensat
edBirefringence)モード用液晶組成物
等の特別な場合を除き、通常、液晶組成物のらせん構造
を誘起して必要なねじれ角を調整し、逆ねじれ(rev
erse twist)を防ぐ目的で、光学活性化合物
を添加する。本発明の光学活性化合物は、このような目
的で使用するのであれば、公知化されたいずれの光学活
性化合物を使用してもかまわないが、好ましくは以下の
光学活性化合物を挙げることができる。In the composition of the present invention, a compound other than the compound represented by the above-mentioned general formula can be mixed and used as long as the object of the invention is not impaired. In the present invention, OCB (Optically Compensat) is used.
Except for a special case such as a liquid crystal composition for an edBirefringence mode, usually, a helical structure of the liquid crystal composition is induced to adjust a required twist angle, and a reverse twist (rev) is obtained.
An optically active compound is added for the purpose of preventing erase twist. As long as the optically active compound of the present invention is used for such a purpose, any of the optically active compounds that have been publicly known may be used, but the following optically active compounds are preferred.
【0033】[0033]
【化14】 Embedded image
【0034】本発明の液晶組成物は、通常、これらの光
学活性化合物を添加して、ねじれのピッチ(pitc
h)長を調整する。ねじれのピッチ長は、TFT用およ
びTN用の液晶組成物であれば40〜200μmの範囲
に調整するのが好ましい。STN用の液晶組成物であれ
ば6〜20μmの範囲に調整するのが好ましい。また、
双安定TN(Bistable TN)モード用の場合
は、1.5〜4μmの範囲に調整するのが好ましい。ま
た、ピッチ長の温度依存性を調整する目的で2種以上の
光学活性化合物を添加して良い。The liquid crystal composition of the present invention is usually added with these optically active compounds to obtain a twist pitch (pitc pitch).
h) Adjust the length. The pitch length of the twist is preferably adjusted in the range of 40 to 200 μm for a liquid crystal composition for TFT and TN. In the case of a liquid crystal composition for STN, it is preferable to adjust the composition to a range of 6 to 20 μm. Also,
In the case of a bistable TN (Bistable TN) mode, it is preferable to adjust the range to 1.5 to 4 μm. Two or more optically active compounds may be added for the purpose of adjusting the temperature dependence of the pitch length.
【0035】本発明に従い使用される液晶組成物は、そ
れ自体慣用な方法で調整される。一般には、種々の成分
を高い温度で互いに溶解させる方法がとられている。ま
た、本発明に従い使用される液晶組成物は、メロシアニ
ン系、スチリル系、アゾ系、アゾメチン系、アゾキシ
系、キノフタロン系、アントラキノン系およびテトラジ
ン系等の二色性色素を添加してゲストホスト(GH)モ
ード用の液晶組成物としても使用できる。あるいは、ネ
マチック液晶をマイクロカプセル化して作製したNCA
Pや液晶中に三次元網目状高分子を作製したポリマーネ
ットワーク液晶表示素子(PNLCD)に代表されるポ
リマー分散型液晶表示素子(PDLCD)用の液晶組成
物としても使用できる。その他、複屈折制御(ECB)
モードや動的散乱(DS)モード用の液晶組成物として
も使用できる。The liquid crystal compositions used according to the invention are prepared in a manner which is conventional per se. Generally, a method of dissolving various components at a high temperature is used. The liquid crystal composition used in accordance with the present invention may be added with a dichroic dye such as a merocyanine, styryl, azo, azomethine, azoxy, quinophthalone, anthraquinone or tetrazine dye to add a guest host (GH) ) It can also be used as a liquid crystal composition for a mode. Alternatively, NCA prepared by microencapsulating nematic liquid crystal
It can also be used as a liquid crystal composition for a polymer dispersed liquid crystal display (PDLCD) represented by a polymer network liquid crystal display (PNLCD) in which a three-dimensional network polymer is prepared in P or a liquid crystal. Other, birefringence control (ECB)
It can also be used as a liquid crystal composition for a mode or a dynamic scattering (DS) mode.
【0036】[0036]
【実施例】以下、実施例により本発明を詳細に説明する
が、本発明はこれらの実施例に限定されるものではな
い。また、比較例、実施例の組成比はすべて重量%で示
される。尚、実施例および比較例で用いる化合物は、表
1に示した定義に基づき、記号で表した。EXAMPLES The present invention will be described in detail below with reference to examples, but the present invention is not limited to these examples. Further, the composition ratios of Comparative Examples and Examples are all shown by weight%. The compounds used in Examples and Comparative Examples are represented by symbols based on the definitions shown in Table 1.
【0037】[0037]
【表1】 [Table 1]
【0038】液晶組成物の特性のデータは、透明点(T
NI)、スメクティック−ネマティック相転移点(TSN)
20℃における粘度(η20)、25℃における屈折率異
方性(Δn)、25℃における誘電率異方性(Δε)、
20℃におけるしきい値電圧(Vth)で表した。電圧保
持率(V.H.R)の測定は面積法に基づいて、25℃
において実施した。なお、Tsn点は、0℃、−10℃、
−20℃、−30℃の各々のフリーザー中に30日間放
置した後の液晶相で判断した。The data on the characteristics of the liquid crystal composition is expressed by a clearing point (T
NI ), smectic-nematic phase transition point ( TSN )
Viscosity at 20 ° C (η20), refractive index anisotropy at 25 ° C (Δn), dielectric anisotropy at 25 ° C (Δε),
It was represented by the threshold voltage (V th ) at 20 ° C. The voltage holding ratio (VHR) was measured at 25 ° C. based on the area method.
Was carried out. In addition, the T sn point is 0 ° C, -10 ° C,
The determination was made based on the liquid crystal phase after being left for 30 days in each of a freezer at −20 ° C. and −30 ° C.
【0039】比較例1 特開平2−233626号公報の応用例2で開示されて
いる、以下の組成物を調製した。 3−HHB(F,F)−F 15.0% 2−HHB(F)−F 28.4% 3−HHB(F)−F 28.3% 5−HHB(F)−F 28.3% TNI=110.7℃ TSN<0℃ η20=25.0mPa・s Δn=0.077 Vth=2.32(V) V.H.R=98.8% この液晶組成物は、しきい値電圧が大きく、また、低温
相溶性が良くない(TSNが高い)。Comparative Example 1 The following composition disclosed in Application Example 2 of JP-A-2-233626 was prepared. 3-HHB (F, F) -F 15.0% 2-HHB (F) -F 28.4% 3-HHB (F) -F 28.3% 5-HHB (F) -F 28.3% T NI = 110.7 ° C. T SN <0 ° C. η 20 = 25.0 mPa · s Δn = 0.077 V th = 2.32 (V) H. R = 98.8% This liquid crystal composition has a high threshold voltage and poor low-temperature compatibility (high T SN ).
【0040】実施例1 3−DBB(F,F)−F 5.0% 3−H2HB(F,F)−F 7.0% 5−H2HB(F,F)−F 11.0% 3−HHB(F,F)−F 10.0% 4−HHB(F,F)−F 6.0% 3−HH2B(F,F)−F 12.0% 5−HH2B(F,F)−F 8.0% 3−HBB(F,F)−F 14.0% 5−HBB(F,F)−F 14.0% 3−HHEB(F,F)−F 9.0% 5−HHEB(F,F)−F 4.0% TNI=78.9℃ TSN<−30℃ η20=29.6mPa・s Δn=0.091 △ε=9.6 Vth=1.52V V.H.R=98.3% この液晶組成物は、低温相溶性に優れ、ネマチック相範
囲が大きく、しきい値電圧が小さく実用性に富んでい
る。Example 1 3-DBB (F, F) -F 5.0% 3-H2HB (F, F) -F 7.0% 5-H2HB (F, F) -F 11.0% 3- HHB (F, F) -F 10.0% 4-HHB (F, F) -F 6.0% 3-HH2B (F, F) -F 12.0% 5-HH2B (F, F) -F 8.0% 3-HBB (F, F) -F 14.0% 5-HBB (F, F) -F 14.0% 3-HHEB (F, F) -F 9.0% 5-HHEB ( F, F) -F 4.0% T NI = 78.9 ° C. T SN <−30 ° C. η 20 = 29.6 mPa · s Δn = 0.091 Δε = 9.6 V th = 1.52V H. R = 98.3% This liquid crystal composition is excellent in low-temperature compatibility, has a large nematic phase range, has a small threshold voltage, and is highly practical.
【0041】実施例2 3−DHB(F,F)−F 5.0% 3−DBB(F,F)−F 5.0% 3−PyBB(F,F)−F 3.0% 3−H2HB(F,F)−F 6.4% 5−H2HB(F,F)−F 10.1% 3−HHB(F,F)−F 9.2% 4−HHB(F,F)−F 5.5% 3−HH2B(F,F)−F 11.0% 5−HH2B(F,F)−F 7.3% 3−HBB(F,F)−F 12.8% 5−HBB(F,F)−F 12.8% 3−HHEB(F,F)−F 8.2% 5−HHEB(F,F)−F 3.7% TNI=75.8℃ TSN<−30℃ η20=32.2mPa・s Δn=0.092 △ε=10.7 Vth=1.45 V.H.R=98.5% Example 2 3-DHB (F, F) -F 5.0% 3-DBB (F, F) -F 5.0% 3-PyBB (F, F) -F 3.0% 3- H2HB (F, F) -F 6.4% 5-H2HB (F, F) -F 10.1% 3-HHB (F, F) -F 9.2% 4-HHB (F, F) -F 5.5% 3-HH2B (F, F) -F 11.0% 5-HH2B (F, F) -F 7.3% 3-HBB (F, F) -F 12.8% 5-HBB ( F, F) -F 12.8% 3-HHEB (F, F) -F 8.2% 5-HHEB (F, F) -F 3.7% T NI = 75.8 ° C. T SN <−30 ° C η20 = 32.2 mPa · s Δn = 0.092 Δε = 10.7 V th = 1.45 V. H. R = 98.5%
【0042】実施例3 3−DHB(F,F)−F 3.0% 3−DBB(F,F)−F 3.0% 3−PyBB(F,F)−F 3.0% 3−BPyB(F,F)−F 3.0% 3−HPyB(F,F)−F 3.0% 3−H2HB(F,F)−F 6.3% 5−H2HB(F,F)−F 9.8% 3−HHB(F,F)−F 8.9% 4−HHB(F,F)−F 5.4% 3−HH2B(F,F)−F 10.7% 5−HH2B(F,F)−F 7.2% 3−HBB(F,F)−F 12.5% 5−HBB(F,F)−F 12.5% 3−HHEB(F,F)−F 8.1% 5−HHEB(F,F)−F 3.6% TNI=77.2℃ TSN<−30℃ η20=32.8mPa・s Δn=0.099 △ε=10.8 Vth=1.43 V.H.R=98.5% Example 3 3-DHB (F, F) -F 3.0% 3-DBB (F, F) -F 3.0% 3-PyBB (F, F) -F 3.0% 3- BPyB (F, F) -F 3.0% 3-HPyB (F, F) -F 3.0% 3-H2HB (F, F) -F 6.3% 5-H2HB (F, F) -F 9.8% 3-HHB (F, F) -F 8.9% 4-HHB (F, F) -F 5.4% 3-HH2B (F, F) -F 10.7% 5-HH2B ( 7. F, F) -F 7.2% 3-HBB (F, F) -F 12.5% 5-HBB (F, F) -F 12.5% 3-HHEB (F, F) -F 1% 5-HHEB (F, F) -F 3.6% T NI = 77.2 ° C. T SN <−30 ° C. η 20 = 32.8 mPa · s Δn = 0.099 Δε = 10.8 V th = 1.43V. H. R = 98.5%
【0043】実施例4 3−DHB(F,F)−F 5.0% 3−DBB(F,F)−F 5.0% 4−DBB(F,F)−F 5.0% 3−HH[D5678]B(F,F)−F 5.0% 3−H2HB(F,F)−F 12.0% 4−H2HB(F,F)−F 10.0% 5−H2HB(F,F)−F 10.0% 3−HH2B(F,F)−F 15.0% 5−HH2B(F,F)−F 10.0% 3−HBB(F,F)−F 6.0% 3−H[D5678]BB(F,F)−F 6.0% 5−HBB(F,F)−F 11.0% TNI=73.9℃ TSN<−20℃ η20=35.4mPa・s Δn=0.089 △ε=10.2 Vth=1.47V V.H.R=98.5% Example 4 3-DHB (F, F) -F 5.0% 3-DBB (F, F) -F 5.0% 4-DBB (F, F) -F 5.0% 3- HH [D5678] B (F, F) -F 5.0% 3-H2HB (F, F) -F 12.0% 4-H2HB (F, F) -F 10.0% 5-H2HB (F, F) -F 10.0% 3-HH2B (F, F) -F 15.0% 5-HH2B (F, F) -F 10.0% 3-HBB (F, F) -F 6.0% 3-H [D5678] BB (F, F) -F 6.0% 5-HBB (F, F) -F 11.0% T NI = 73.9 ° C. T SN <−20 ° C. η 20 = 35.4 mPa S Δn = 0.089 Δε = 10.2 V th = 1.47 V H. R = 98.5%
【0044】実施例5 3−DBB(F,F)−F 5.0% 5−DBB(F,F)−F 4.0% 3−HDB(F,F)−F 4.0% 3−HHB(F,F)−F 10.0% 4−HHB(F,F)−F 5.0% 3−H2HB(F,F)−F 12.0% 3−HH2B(F,F)−F 7.0% 5−HH2B(F,F)−F 7.0% 3−H2BB(F,F)−F 14.0% 3−HHEB(F,F)−F 10.0% 4−HHEB(F,F)−F 3.0% 5−HHEB(F,F)−F 3.0% 2−HBEB(F,F)−F 3.0% 3−HBEB(F,F)−F 5.0% 5−HBEB(F,F)−F 3.0% 7−HB(F,F)−F 5.0% TNI=70.2℃ TSN<−20℃ η20=34.6mPa・s Δn=0.083 △ε=10.0 Vth=1.44V V.H.R=98.4% Example 5 3-DBB (F, F) -F 5.0% 5-DBB (F, F) -F 4.0% 3-HDB (F, F) -F 4.0% 3- HHB (F, F) -F 10.0% 4-HHB (F, F) -F 5.0% 3-H2HB (F, F) -F 12.0% 3-HH2B (F, F) -F 7.0% 5-HH2B (F, F) -F 7.0% 3-H2BB (F, F) -F 14.0% 3-HHEB (F, F) -F 10.0% 4-HHEB ( 3. F, F) -F 3.0% 5-HHEB (F, F) -F 3.0% 2-HBEB (F, F) -F 3.0% 3-HBEB (F, F) -F 0% 5-HBEB (F, F) -F 3.0% 7-HB (F, F) -F 5.0% T NI = 70.2 ° C. T SN <−20 ° C. η 20 = 34.6 mPa · s Δn = 0.083 Δε = 10.0 th = 1.44V V. H. R = 98.4%
【0045】実施例6 2−DHB(F,F)−F 5.0% 3−DHB(F,F)−F 5.0% 5−DHB(F,F)−F 5.0% 2−DBB(F,F)−F 5.0% 3−DBB(F,F)−F 5.0% 5−DBB(F,F)−F 5.0% 3−H2HB(F,F)−F 12.0% 4−H2HB(F,F)−F 10.0% 3−HBB(F,F)−F 15.0% 3−HHEB(F,F)−F 10.0% 2−HBEB(F,F)−F 3.0% 3−HBEB(F,F)−F 5.0% 5−HBEB(F,F)−F 3.0% 2−HHBB(F,F)−F 3.0% 3−HHBB(F,F)−F 3.0% 4−HHBB(F,F)−F 3.0% 3−HH2BB(F,F)−F 3.0% TNI=80.9℃ TSN<−20℃ η20=49.4mPa・s Δn=0.100 △ε=11.5 Vth=1.35V V.H.R=98.4% Example 6 2-DHB (F, F) -F 5.0% 3-DHB (F, F) -F 5.0% 5-DHB (F, F) -F 5.0% 2- DBB (F, F) -F 5.0% 3-DBB (F, F) -F 5.0% 5-DBB (F, F) -F 5.0% 3-H2HB (F, F) -F 12.0% 4-H2HB (F, F) -F 10.0% 3-HBB (F, F) -F 15.0% 3-HHEB (F, F) -F 10.0% 2-HBEB ( F, F) -F 3.0% 3-HBEB (F, F) -F 5.0% 5-HBEB (F, F) -F 3.0% 2-HHBB (F, F) -F 3.0% 0% 3-HHBB (F, F) -F 3.0% 4-HHBB (F, F) -F 3.0% 3-HH2BB (F, F) -F 3.0% T NI = 80.9 ℃ T SN <-20 ℃ η20 = 49.4mP a · s Δn = 0.100 Δε = 11.5 V th = 1.35V H. R = 98.4%
【0046】実施例7 3−DHB(F,F)−F 4.0% 5−DHB(F,F)−F 3.0% 3−DBB(F,F)−F 5.0% 5−DBB(F,F)−F 3.0% 3−HHB(F,F)−F 10.0% 4−HHB(F,F)−F 5.0% 3−H2HB(F,F)−F 12.0% 4−H2HB(F,F)−F 10.0% 3−HBB(F,F)−F 8.0% 3−HHEB(F,F)−F 10.0% 4−HHEB(F,F)−F 3.0% 5−HHEB(F,F)−F 3.0% 2−HBEB(F,F)−F 3.0% 3−HBEB(F,F)−F 5.0% 5−HBEB(F,F)−F 3.0% 3−HHB(F)−F 4.0% 3−H2HB(F)−F 3.0% 3−H2BB(F)−F 3.0% 3−HBB(F)−F 3.0% TNI=75.2℃ TSN<−20℃ η20=35.8mPa・s Δn=0.089 △ε=9.7 Vth=1.51 V.H.R=98.2% Example 7 3-DHB (F, F) -F 4.0% 5-DHB (F, F) -F 3.0% 3-DBB (F, F) -F 5.0% 5- DBB (F, F) -F 3.0% 3-HHB (F, F) -F 10.0% 4-HHB (F, F) -F 5.0% 3-H2HB (F, F) -F 12.0% 4-H2HB (F, F) -F 10.0% 3-HBB (F, F) -F 8.0% 3-HHEB (F, F) -F 10.0% 4-HHEB ( 3. F, F) -F 3.0% 5-HHEB (F, F) -F 3.0% 2-HBEB (F, F) -F 3.0% 3-HBEB (F, F) -F 0% 5-HBEB (F, F) -F 3.0% 3-HHB (F) -F 4.0% 3-H2HB (F) -F 3.0% 3-H2BB (F) -F 0% 3-HBB (F) -F 3.0% NI = 75.2 ℃ T SN <-20 ℃ η20 = 35.8mPa · s Δn = 0.089 △ ε = 9.7 V th = 1.51 V. H. R = 98.2%
【0047】実施例8 3−DHB(F,F)−F 3.0% 3−DHB(F,F)−F 4.0% 3−DBB(F,F)−F 4.0% 3−DBB(F,F)−F 4.0% 3−HHB(F,F)−F 10.0% 4−HHB(F,F)−F 5.0% 3−H2HB(F,F)−F 12.0% 4−H2HB(F,F)−F 10.0% 3−HBB(F,F)−F 14.0% 3−HHEB(F,F)−F 10.0% 4−HHEB(F,F)−F 3.0% 5−HHEB(F,F)−F 3.0% 2−HBEB(F,F)−F 3.0% 3−HB(F)EB(F,F)−F 5.0% 5−HBEB(F,F)−F 3.0% 2−HHB−CL 4.0% 4−HHB−CL 3.0% TNI=78.6℃ TSN<−20℃ η20=36.4mPa・s Δn=0.091 Vth=1.53V V.H.R=98.3% Example 8 3-DHB (F, F) -F 3.0% 3-DHB (F, F) -F 4.0% 3-DBB (F, F) -F 4.0% 3- DBB (F, F) -F 4.0% 3-HHB (F, F) -F 10.0% 4-HHB (F, F) -F 5.0% 3-H2HB (F, F) -F 12.0% 4-H2HB (F, F) -F 10.0% 3-HBB (F, F) -F 14.0% 3-HHEB (F, F) -F 10.0% 4-HHEB ( F, F) -F 3.0% 5-HHEB (F, F) -F 3.0% 2-HBEB (F, F) -F 3.0% 3-HB (F) EB (F, F) -F 5.0% 5-HBEB (F, F) -F 3.0% 2-HHB-CL 4.0% 4-HHB-CL 3.0% T NI = 78.6 ° C. T SN <−20 ° C η20 = 36.4 mPa · s Δn = 0 0.091 V th = 1.53 V H. R = 98.3%
【0048】実施例9 3−DHB(F,F)−F 3.0% 5−DHB(F,F)−F 3.0% 3−DBB(F,F)−F 5.0% 5−DBB(F,F)−F 4.0% 3−HHB(F,F)−F 7.0% 3−H2HB(F,F)−F 12.0% 4−H2HB(F,F)−F 10.0% 3−HBB(F,F)−F 10.0% 3−HHEB(F,F)−F 10.0% 2−HBEB(F,F)−F 3.0% 3−HBEB(F,F)−F 5.0% 5−HBEB(F,F)−F 3.0% 7−HB(F,F)−F 5.0% 2−HHBB(F,F)−F 4.0% 3−HHBB(F,F)−F 4.0% 3−HH2BB(F,F)−F 3.0% 7−HB(F)−F 3.0% 5−H2B(F)−F 3.0% 7−HB−CL 3.0% TNI=70.6℃ TSN<−20℃ η20=37.8mPa・s Δn=0.087 Vth=1.56V V.H.R=98.4% Example 9 3-DHB (F, F) -F 3.0% 5-DHB (F, F) -F 3.0% 3-DBB (F, F) -F 5.0% 5- DBB (F, F) -F 4.0% 3-HHB (F, F) -F 7.0% 3-H2HB (F, F) -F 12.0% 4-H2HB (F, F) -F 10.0% 3-HBB (F, F) -F 10.0% 3-HHEB (F, F) -F 10.0% 2-HBEB (F, F) -F 3.0% 3-HBEB ( F, F) -F 5.0% 5-HBEB (F, F) -F 3.0% 7-HB (F, F) -F 5.0% 2-HHBB (F, F) -F 0% 3-HHBB (F, F) -F 4.0% 3-HH2BB (F, F) -F 3.0% 7-HB (F) -F 3.0% 5-H2B (F) -F 3.0% 7-HB-CL 3.0% T NI = 70.6 ° C. T SN <−20 ° C. η 20 = 37.8 mPa · s Δn = 0.087 V th = 1.56 V H. R = 98.4%
【0049】実施例10 3−PyBB(F,F)−F 3.0% 5−PyBB(F,F)−F 3.0% 2−HBEB(F,F)−F 3.0% 3−HBEB(F,F)−F 5.0% 5−HBEB(F,F)−F 3.0% 3−H2BB(F,F)−F 8.0% 5−H2BB(F,F)−F 7.0% 3−HBB(F,F)−F 30.0% 5−HBB(F,F)−F 30.0% 1O1−HBBH−5 4.0% 3−PyBB−F 4.0% TNI=73.9℃ TSN<−30℃ Δn=0.137 △ε=12.6 Vth=1.32V Example 10 3-PyBB (F, F) -F 3.0% 5-PyBB (F, F) -F 3.0% 2-HBEB (F, F) -F 3.0% 3- HBEB (F, F) -F 5.0% 5-HBEB (F, F) -F 3.0% 3-H2BB (F, F) -F 8.0% 5-H2BB (F, F) -F 7.0% 3-HBB (F, F) -F 30.0% 5-HBB (F, F) -F 30.0% 1O1-HBBH-5 4.0% 3-PyBB-F 4.0% T NI = 73.9 ° C. T SN <−30 ° C. Δn = 0.137 Δε = 12.6 V th = 1.32 V
【0050】実施例11 2−DHB(F,F)−F 3.0% 3−DHB(F,F)−F 4.0% 5−DHB(F,F)−F 3.0% 2−DBB(F,F)−F 3.0% 3−DBB(F,F)−F 4.0% 5−DBB(F,F)−F 3.0% 3−H2BB(F,F)−F 10.0% 5−H2BB(F,F)−F 10.0% 3−HBB(F,F)−F 23.0% 5−HBB(F,F)−F 22.0% 1O1−HBBH−5 5.0% 3−PyBB−F 5.0% 4−PyBB−F 5.0% TNI=80.0℃ TSN<−30℃ η20=48.5mPa・s Δn=0.136 △ε=11.8 Vth=1.40V Example 11 2-DHB (F, F) -F 3.0% 3-DHB (F, F) -F 4.0% 5-DHB (F, F) -F 3.0% 2- DBB (F, F) -F 3.0% 3-DBB (F, F) -F 4.0% 5-DBB (F, F) -F 3.0% 3-H2BB (F, F) -F 10.0% 5-H2BB (F, F) -F 10.0% 3-HBB (F, F) -F 23.0% 5-HBB (F, F) -F 22.0% 1O1-HBBH- 5 5.0% 3-PyBB-F 5.0% 4-PyBB-F 5.0% T NI = 80.0 ° C. T SN <−30 ° C. η 20 = 48.5 mPa · s Δn = 0.136 Δε = 11.8 V th = 1.40 V
【0051】実施例12 3−DHB(F,F)−F 4.0% 3−DBB(F,F)−F 4.0% 5−HBCF2OB(F)−F 5.0% 5−HBCF2OB(F)−OCF3 8.0% 3−HBCF2OB(F,F)−F 7.0% 3−HBB(F,F)−F 8.0% 5−HBB(F,F)−F 8.0% 3−HHB(F,F)−F 4.0% 3−H2BB(F,F)−F 8.0% 4−H2BB(F,F)−F 8.0% 5−H2BB(F,F)−F 8.0% 3−HBEB(F,F)−F 4.0% 3−HHEB(F,F)−F 12.0% 4−HHEB(F,F)−F 4.0% 5−HHEB(F,F)−F 4.0% 3−HH2BB(F,F)−F 4.0% TNI=71.6℃ TSN<−30℃ η20=32.3mPa・s Δn=0.105 △ε=11.3 Vth=1.38V Example 12 3-DHB (F, F) -F 4.0% 3-DBB (F, F) -F 4.0% 5-HBCF2OB (F) -F 5.0% 5-HBCF2OB ( F) -OCF3 8.0% 3-HBCF2OB (F, F) -F 7.0% 3-HBB (F, F) -F 8.0% 5-HBB (F, F) -F 8.0% 3-HHB (F, F) -F 4.0% 3-H2BB (F, F) -F 8.0% 4-H2BB (F, F) -F 8.0% 5-H2BB (F, F) -F 8.0% 3-HBEB (F, F) -F 4.0% 3-HHEB (F, F) -F 12.0% 4-HHEB (F, F) -F 4.0% 5- HHEB (F, F) -F 4.0% 3-HH2BB (F, F) -F 4.0% T NI = 71.6 ° C. T SN <−30 ° C. η 20 = 32.3 mPa · s Δn = 0. 1 5 △ ε = 11.3 V th = 1.38V
【0052】実施例13 3−DHB(F,F)−F 5.0% 3−DBB(F,F)−F 5.0% 3−HHB(F,F)−F 5.0% 3−H2HB(F,F)−F 12.0% 4−H2HB(F,F)−F 10.0% 5−H2HB(F,F)−F 10.0% 3−HH2B(F,F)−F 10.0% 5−HH2B(F,F)−F 8.0% 3−HBB(F,F)−F 12.0% 5−HBB(F,F)−F 11.0% 3−HHB−OCF3 3.0% 3−HH2B−OCF3 3.0% 5−HH2B−OCF3 3.0% 5−HHEB−OCF3 3.0% TNI=78.4℃ TSN<−20℃ η20=31.9mPa・s Δn=0.089 △ε=10.3 Vth=1.56V Example 13 3-DHB (F, F) -F 5.0% 3-DBB (F, F) -F 5.0% 3-HHB (F, F) -F 5.0% 3- H2HB (F, F) -F 12.0% 4-H2HB (F, F) -F 10.0% 5-H2HB (F, F) -F 10.0% 3-HH2B (F, F) -F 10.0% 5-HH2B (F, F) -F 8.0% 3-HBB (F, F) -F 12.0% 5-HBB (F, F) -F 11.0% 3-HHB- OCF3 3.0% 3-HH2B-OCF3 3.0% 5-HH2B-OCF3 3.0% 5-HHEB-OCF3 3.0% T NI = 78.4 ° C. T SN <−20 ° C. η 20 = 31.9 mPa・ S Δn = 0.089 Δε = 10.3 V th = 1.56 V
【0053】実施例14 3−DHB(F,F)−F 5.0% 3−DBB(F,F)−F 5.0% 3−HHB(F,F)−F 5.0% 3−H2HB(F,F)−F 12.0% 4−H2HB(F,F)−F 10.0% 5−H2HB(F,F)−F 10.0% 3−HH2B(F,F)−F 14.0% 5−HH2B(F,F)−F 10.0% 3−HBB(F,F)−F 12.0% 5−HBB(F,F)−F 11.0% 3−PyBB−F 3.0% 5−PyBB−F 3.0% TNI=78.2℃ TSN<−20℃ η20=34.0mPa・s Δn=0.098 △ε=11.3 Vth=1.43V Example 14 3-DHB (F, F) -F 5.0% 3-DBB (F, F) -F 5.0% 3-HHB (F, F) -F 5.0% 3- H2HB (F, F) -F 12.0% 4-H2HB (F, F) -F 10.0% 5-H2HB (F, F) -F 10.0% 3-HH2B (F, F) -F 14.0% 5-HH2B (F, F) -F 10.0% 3-HBB (F, F) -F 12.0% 5-HBB (F, F) -F 11.0% 3-PyBB- F 3.0% 5-PyBB-F 3.0% T NI = 78.2 ° C. T SN <−20 ° C. η 20 = 34.0 mPa · s Δn = 0.098 Δε = 11.3 V th = 1. 43V
【0054】実施例15 3−H2GB(F,F)−F 8.0% 3−HGB(F,F)−F 10.0% 3−HHB(F,F)−F 9.0% 3−H2HB(F,F)−F 8.0% 5−H2HB(F,F)−F 8.0% 3−HBB(F,F)−F 11.0% 5−HBB(F,F)−F 20.0% 3−H2BB(F,F)−F 10.0% 5−HHBB(F,F)−F 3.0% 5−HHEBB−F 2.0% 3−HH2BB(F,F)−F 3.0% 101−HBBH−4 4.0% 101−HBBH−5 4.0% TNI=95.6℃ TSN<−20℃ η20=35.8mPa・s Δn=0.110 △ε=9.7 Vth=1.43V V.H.R=98.4%Example 15 3-H2GB (F, F) -F 8.0% 3-HGB (F, F) -F 10.0% 3-HHB (F, F) -F 9.0% 3- H2HB (F, F) -F 8.0% 5-H2HB (F, F) -F 8.0% 3-HBB (F, F) -F 11.0% 5-HBB (F, F) -F 20.0% 3-H2BB (F, F) -F 10.0% 5-HHBB (F, F) -F 3.0% 5-HHEBB-F 2.0% 3-HH2BB (F, F)- F 3.0% 101-HBBH-4 4.0% 101-HBBH-5 4.0% T NI = 95.6 ° C. T SN <−20 ° C. η 20 = 35.8 mPa · s Δn = 0.110 Δε = 9.7 V th = 1.43 V H. R = 98.4%
【0055】実施例16 2−HEB−F 2.0% 3−HEB−F 2.0% 5−HEB−F 2.0% 5−HGB(F,F)−F 14.0% 2−HBB(F)−F 6.0% 3−HBB(F)−F 6.0% 5−HBB(F)−F 10.0% 2−H2BB(F)−F 9.0% 3−H2BB(F)−F 9.0% 3−HBB(F,F)−F 25.0% 5−HBB(F,F)−F 5.0% 101−HBBH−4 5.0% 101−HBBH−5 5.0% TNI=93.8℃ TSN<−20℃ η20=33.6mPa・s Δn=0.126 △ε=8.0 Vth=1.49V V.H.R=98.3%Example 16 2-HEB-F 2.0% 3-HEB-F 2.0% 5-HEB-F 2.0% 5-HGB (F, F) -F 14.0% 2-HBB (F) -F 6.0% 3-HBB (F) -F 6.0% 5-HBB (F) -F 10.0% 2-H2BB (F) -F 9.0% 3-H2BB (F ) -F 9.0% 3-HBB (F, F) -F 25.0% 5-HBB (F, F) -F 5.0% 101-HBBH-4 5.0% 101-HBBH-5 55 0.0% T NI = 93.8 ° C. T SN <−20 ° C. η 20 = 33.6 mPa · s Δn = 0.126 Δε = 8.0 V th = 1.49V H. R = 98.3%
【0056】実施例17 5−GHEB(F,F)−F 3.0% 3−H2HB(F,F)−F 7.0% 5−H2HB(F,F)−F 8.0% 3−HHB(F,F)−F 10.0% 4−HHB(F,F)−F 5.0% 3−HH2B(F,F)−F 9.0% 5−HH2B(F,F)−F 9.0% 3−HBB(F,F)−F 15.0% 5−HBB(F,F)−F 15.0% 3−HBEB(F,F)−F 2.0% 4−HBEB(F,F)−F 2.0% 5−HBEB(F,F)−F 2.0% 3−HHEB(F,F)−F 10.0% 4−HHEB(F,F)−F 3.0% TNI=80.1℃ TSN<−20℃ η20=32.5mPa・s Δn=0.092 △ε=11.5 Vth=1.60V V.H.R=97.9%Example 17 5-GHEB (F, F) -F 3.0% 3-H2HB (F, F) -F 7.0% 5-H2HB (F, F) -F 8.0% 3- HHB (F, F) -F 10.0% 4-HHB (F, F) -F 5.0% 3-HH2B (F, F) -F 9.0% 5-HH2B (F, F) -F 9.0% 3-HBB (F, F) -F 15.0% 5-HBB (F, F) -F 15.0% 3-HBEB (F, F) -F 2.0% 4-HBEB ( 2. F, F) -F 2.0% 5-HBEB (F, F) -F 2.0% 3-HHEB (F, F) -F 10.0% 4-HHEB (F, F) -F 0% T NI = 80.1 ° C. T SN <−20 ° C. η 20 = 32.5 mPa · s Δn = 0.092 Δε = 11.5 V th = 1.60 V H. R = 97.9%
【0057】実施例18 5−H2GB(F,F)−F 6.0% 7−HB(F,F)−F 3.0% 3−H2HB(F,F)−F 12.0% 4−H2HB(F,F)−F 10.0% 5−H2HB(F,F)−F 10.0% 3−HHB(F,F)−F 5.0% 4−HHB(F,F)−F 5.0% 3−HH2B(F,F)−F 15.0% 5−HH2B(F,F)−F 10.0% 3−HHB(F,F)−F 12.0% 5−HHB(F,F)−F 12.0% TNI=75.1℃ TSN<−20℃ η20=26.7mPa・s Δn=0.088 △ε=8.8 Vth=1.53V V.H.R=98.2%Example 18 5-H2GB (F, F) -F 6.0% 7-HB (F, F) -F 3.0% 3-H2HB (F, F) -F 12.0% 4- H2HB (F, F) -F 10.0% 5-H2HB (F, F) -F 10.0% 3-HHB (F, F) -F 5.0% 4-HHB (F, F) -F 5.0% 3-HH2B (F, F) -F 15.0% 5-HH2B (F, F) -F 10.0% 3-HHB (F, F) -F 12.0% 5-HHB ( F, F) -F 12.0% T NI = 75.1 ° C. T SN <−20 ° C. η 20 = 26.7 mPa · s Δn = 0.088 Δε = 8.8 V th = 1.53 V H. R = 98.2%
【0058】実施例19 4−H2GB(F,F)−F 10.0% 4−HGB(F,F)−F 5.0% 5−GHEB(F,F)−F 3.0% 7−HB(F,F)−F 5.0% 3−H2HB(F,F)−F 12.0% 3−HHB(F,F)−F 10.0% 3−HBB(F,F)−F 10.0% 3−HHEB(F,F)−F 10.0% 4−HHEB(F,F)−F 3.0% 2−HBEB(F,F)−F 3.0% 3−HBEB(F,F)−F 5.0% 5−HBEB(F,F)−F 3.0% 3−HGB(F,F)−FF 15.0% 3−HHBB(F,F)−F 3.0% 5−HHHB(F,F)−F 3.0% TNI=72.6℃ TSN<−20℃ η20=30.9mPa・s Δn=0.083 △ε=14.2 Vth=0.91V V.H.R=98.1% 比較例および実施例の液晶組成物の特性を表2に示す。Example 19 4-H2GB (F, F) -F 10.0% 4-HGB (F, F) -F 5.0% 5-GHEB (F, F) -F 3.0% 7- HB (F, F) -F 5.0% 3-H2HB (F, F) -F 12.0% 3-HHB (F, F) -F 10.0% 3-HBB (F, F) -F 10.0% 3-HHEB (F, F) -F 10.0% 4-HHEB (F, F) -F 3.0% 2-HBEB (F, F) -F 3.0% 3-HBEB ( F, F) -F 5.0% 5-HBEB (F, F) -F 3.0% 3-HGB (F, F) -FF 15.0% 3-HHBB (F, F) -F 0% 5-HHHB (F, F) -F 3.0% T NI = 72.6 ° C. T SN <−20 ° C. η 20 = 30.9 mPa · s Δn = 0.083 Δε = 14.2 V th = 0.91 V H. R = 98.1% Table 2 shows the characteristics of the liquid crystal compositions of Comparative Examples and Examples.
【0059】[0059]
【表2】 [Table 2]
【0060】[0060]
【発明の効果】実施例および表2から明かなように本発
明によって、AM−LCD用液晶組成物に求められる種
々の特性を満たしながら、特に、しきい値電圧の小さ
い、且つ低温相溶性に優れ、ネマチック相範囲の大きい
液晶組成物を提供できる。As is clear from the Examples and Table 2, the present invention satisfies various characteristics required for a liquid crystal composition for AM-LCD, particularly, a low threshold voltage and low temperature compatibility. An excellent liquid crystal composition having a large nematic phase range can be provided.
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【手続補正書】[Procedure amendment]
【提出日】平成10年1月14日[Submission date] January 14, 1998
【手続補正1】[Procedure amendment 1]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】0054[Correction target item name] 0054
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【0054】実施例15 3−H2DB(F,F)−F 8.0% 3−HDB(F,F)−F 10.0% 3−HHB(F,F)−F 9.0% 3−H2HB(F,F)−F 8.0% 5−H2HB(F,F)−F 8.0% 3−HBB(F,F)−F 11.0% 5−HBB(F,F)−F 20.0% 3−H2BB(F,F)−F 10.0% 5−HHBB(F,F)−F 3.0% 5−HHEBB−F 2.0% 3−HH2BB(F,F)−F 3.0% 101−HBBH−4 4.0% 101−HBBH−5 4.0% TNI=95.6℃ TSN<−20℃ η20=34.0mPa・s Δn=0.110 △ε=9.7 Vth=1.43V V.H.R=98.4%[0054] Example 15 3-H2 D B (F , F) -F 8.0% 3-H D B (F, F) -F 10.0% 3-HHB (F, F) -F 9. 0% 3-H2HB (F, F) -F 8.0% 5-H2HB (F, F) -F 8.0% 3-HBB (F, F) -F 11.0% 5-HBB (F, F F) -F 20.0% 3-H2BB (F, F) -F 10.0% 5-HHBB (F, F) -F 3.0% 5-HHEBB-F 2.0% 3-HH2BB (F , F) -F 3.0% 101-HBBH-4 4.0% 101-HBBH-5 4.0% T NI = 95.6 ° C. T SN <−20 ° C. η 20 = 34.0 mPa · s Δn = 0 .110 Δε = 9.7 V th = 1.43V H. R = 98.4%
【手続補正2】[Procedure amendment 2]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】0055[Correction target item name] 0055
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【0055】実施例16 2−HEB−F 2.0% 3−HEB−F 2.0% 5−HEB−F 2.0% 5−HDB(F,F)−F 14.0% 2−HBB(F)−F 6.0% 3−HBB(F)−F 6.0% 5−HBB(F)−F 10.0% 2−H2BB(F)−F 9.0% 3−H2BB(F)−F 9.0% 3−HBB(F,F)−F 25.0% 5−HBB(F,F)−F 5.0% 101−HBBH−4 5.0% 101−HBBH−5 5.0% TNI=93.8℃ TSN<−20℃ η20=33.6mPa・s Δn=0.126 △ε=8.0 Vth=1.49V V.H.R=98.3%[0055] Example 16 2-HEB-F 2.0% 3-HEB-F 2.0% 5-HEB-F 2.0% 5-H D B (F, F) -F 14.0% 2 -HBB (F) -F 6.0% 3-HBB (F) -F 6.0% 5-HBB (F) -F 10.0% 2-H2BB (F) -F 9.0% 3-H2BB (F) -F 9.0% 3-HBB (F, F) -F 25.0% 5-HBB (F, F) -F 5.0% 101-HBBH-4 5.0% 101-HBBH- 5 5.0% T NI = 93.8 ° C. T SN <−20 ° C. η 20 = 33.6 mPa · s Δn = 0.126 Δε = 8.0 V th = 1.49 V H. R = 98.3%
【手続補正3】[Procedure amendment 3]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】0056[Correction target item name] 0056
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【0056】実施例17 5−DHEB(F,F)−F 3.0% 3−H2HB(F,F)−F 7.0% 5−H2HB(F,F)−F 8.0% 3−HHB(F,F)−F 10.0% 4−HHB(F,F)−F 5.0% 3−HH2B(F,F)−F 9.0% 5−HH2B(F,F)−F 9.0% 3−HBB(F,F)−F 15.0% 5−HBB(F,F)−F 15.0% 3−HBEB(F,F)−F 2.0% 4−HBEB(F,F)−F 2.0% 5−HBEB(F,F)−F 2.0% 3−HHEB(F,F)−F 10.0% 4−HHEB(F,F)−F 3.0% TNI=80.1℃ TSN<−20℃ η20=32.5mPa・s Δn=0.092 △ε=11.5 Vth=1.60V V.H.R=97.9%Example 17 5- D HEB (F, F) -F 3.0% 3-H2HB (F, F) -F 7.0% 5-H2HB (F, F) -F 8.0% 3 -HHB (F, F) -F 10.0% 4-HHB (F, F) -F 5.0% 3-HH2B (F, F) -F 9.0% 5-HH2B (F, F)- F 9.0% 3-HBB (F, F) -F 15.0% 5-HBB (F, F) -F 15.0% 3-HBEB (F, F) -F 2.0% 4-HBEB (F, F) -F 2.0% 5-HBEB (F, F) -F 2.0% 3-HHEB (F, F) -F 10.0% 4-HHEB (F, F) -F3 0.0% T NI = 80.1 ° C. T SN <−20 ° C. η 20 = 32.5 mPa · s Δn = 0.092 Δε = 11.5 V th = 1.60 V H. R = 97.9%
【手続補正4】[Procedure amendment 4]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】0057[Correction target item name] 0057
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【0057】実施例18 5−H2DB(F,F)−F 6.0% 7−HB(F,F)−F 3.0% 3−H2HB(F,F)−F 12.0% 4−H2HB(F,F)−F 10.0% 5−H2HB(F,F)−F 10.0% 3−HHB(F,F)−F 5.0% 4−HHB(F,F)−F 5.0% 3−HH2B(F,F)−F 15.0% 5−HH2B(F,F)−F 10.0% 3−HHB(F,F)−F 12.0% 5−HHB(F,F)−F 12.0% TNI=75.1℃ TSN<−20℃ η20=26.7mPa・s Δn=0.088 △ε=8.8 Vth=1.53V V.H.R=98.2%[0057] Example 18 5-H2 D B (F , F) -F 6.0% 7-HB (F, F) -F 3.0% 3-H2HB (F, F) -F 12.0% 4-H2HB (F, F) -F 10.0% 5-H2HB (F, F) -F 10.0% 3-HHB (F, F) -F 5.0% 4-HHB (F, F) -F 5.0% 3-HH2B (F, F) -F 15.0% 5-HH2B (F, F) -F 10.0% 3-HHB (F, F) -F 12.0% 5- HHB (F, F) -F 12.0% T NI = 75.1 ° C. T SN <−20 ° C. η 20 = 26.7 mPa · s Δn = 0.088 Δε = 8.8 V th = 1.53 V V . H. R = 98.2%
【手続補正5】[Procedure amendment 5]
【補正対象書類名】明細書[Document name to be amended] Statement
【補正対象項目名】0058[Correction target item name] 0058
【補正方法】変更[Correction method] Change
【補正内容】[Correction contents]
【0058】実施例19 4−H2DB(F,F)−F 10.0% 4−HDB(F,F)−F 5.0% 5−DHEB(F,F)−F 3.0% 7−HB(F,F)−F 5.0% 3−H2HB(F,F)−F 12.0% 3−HHB(F,F)−F 10.0% 3−HBB(F,F)−F 10.0% 3−HHEB(F,F)−F 10.0% 4−HHEB(F,F)−F 3.0% 2−HBEB(F,F)−F 3.0% 3−HBEB(F,F)−F 5.0% 5−HBEB(F,F)−F 3.0% 3−HDB(F,F)−F 15.0% 3−HHBB(F,F)−F 3.0% 5−HHHB(F,F)−F 3.0% TNI=72.6℃ TSN<−20℃ η20=30.9mPa・s Δn=0.083 △ε=14.2 Vth=0.91V V.H.R=98.1% 比較例および実施例の液晶組成物の特性を表2に示す。[0058] Example 19 4-H2 D B (F , F) -F 10.0% 4-H D B (F, F) -F 5.0% 5- D HEB (F, F) -F 3 0.0% 7-HB (F, F) -F 5.0% 3-H2HB (F, F) -F 12.0% 3-HHB (F, F) -F 10.0% 3-HBB (F , F) -F 10.0% 3-HHEB (F, F) -F 10.0% 4-HHEB (F, F) -F 3.0% 2-HBEB (F, F) -F 3.0 % 3-HBEB (F, F ) -F 5.0% 5-HBEB (F, F) -F 3.0% 3-H D B (F, F) - F 15.0% 3-HHBB (F , F) -F 3.0% 5-HHHB (F, F) -F 3.0% T NI = 72.6 ° C. T SN <−20 ° C. η 20 = 30.9 mPa · s Δn = 0.083 Δε = 14.2 V th = 0.91 V V. H. R = 98.1% Table 2 shows the characteristics of the liquid crystal compositions of Comparative Examples and Examples.
Claims (6)
(I−2)、(I−3)、(I−4)、(I−5)およ
び(I−6)からなる化合物群から選択される化合物を
少なくとも1種類含有し、第2成分として、一般式(II
−1)、(II−2)、(II−3)および(II−4)から
なる化合物群から選択される化合物を少なくとも1種類
含有することを特徴とする液晶組成物。 【化1】 (式中、Rは炭素数1〜10のアルキル基を示し、
Z1、Z2、Z3、Z4は各々独立して−CH2CH2−また
は単結合を示し、環(A)はトランス−1,4−シクロ
ヘキシレン、または1,4−フェニレンを示し、環
(B)は1,3−ジオキサン−2,5−ジイル、または
側位HがFで置換されてもよい1,4−フェニレンを示
し、環(C)はトランス−1,4−シクロヘキシレン、
または側位HがFで置換されても良い1,4−フェニレ
ンを示し、XはF、OCF3、CF3、OCHF2、また
はClを示し、Y1、Y2は各々独立してHまたはFを示
す。また、これらの化合物を構成する各原子は、その同
位体原子で置換されていてもよい。)1. A compound represented by the following general formula (I-1):
It contains at least one compound selected from the group consisting of (I-2), (I-3), (I-4), (I-5) and (I-6), and as a second component, General formula (II
A liquid crystal composition comprising at least one compound selected from the group consisting of -1), (II-2), (II-3) and (II-4). Embedded image (Wherein, R represents an alkyl group having 1 to 10 carbon atoms,
Z 1 , Z 2 , Z 3 and Z 4 each independently represent —CH 2 CH 2 — or a single bond, and ring (A) represents trans-1,4-cyclohexylene or 1,4-phenylene And ring (B) represents 1,3-dioxane-2,5-diyl or 1,4-phenylene optionally substituted with F at the side position H, and ring (C) represents trans-1,4-cyclohexyl. Shiren,
Or X represents F, OCF 3 , CF 3 , OCHF 2 , or Cl in which the side position H may be substituted with F, and Y 1 and Y 2 each independently represent H or F is shown. Further, each atom constituting these compounds may be substituted with its isotope atom. )
が3〜40重量%、第2成分が60〜97重量%であ
る、ことを特徴とする請求項1記載の液晶組成物。2. The liquid crystal composition according to claim 1, wherein the first component is 3 to 40% by weight and the second component is 60 to 97% by weight based on the total weight of the liquid crystal composition. .
(I−1)、(I−2)、(I−3)、(I−4)、
(I−5)および(I−6)からなる化合物群から選択
される化合物を少なくとも1種含有し、第2成分とし
て、請求項1記載の一般式(II−1)、(II−2)、
(II−3)および(II−4)からなる化合物群から選択
される化合物を少なくとも1種類含有し、第3成分とし
て、一般式(III) で表わされる化合物群から選択され
る化合物を少なくとも1種類含有することを特徴とする
液晶組成物。 【化2】 (式中、Rは1〜10のアルキル基を示し、Z5は−C
H2CH2−、−COO−または単結合を示し、XはF、
OCF3、CF3、OCHF2、Clを示し、Y1、Y2は
各々独立してHまたはFを示す。また、これらの化合物
を構成する各原子は、その同位体原子で置換されていて
もよい。)3. The compound represented by the general formula (I-1), (I-2), (I-3), (I-4) or (I-4) according to claim 1 as the first component.
A compound selected from the compound group consisting of (I-5) and (I-6), which contains at least one compound, and as a second component, the general formulas (II-1) and (II-2) according to claim 1. ,
It contains at least one compound selected from the compound group consisting of (II-3) and (II-4), and as a third component, at least one compound selected from the compound group represented by the general formula (III). A liquid crystal composition characterized by containing various types. Embedded image (Wherein, R represents an alkyl group of 1 to 10, and Z 5 represents -C
X represents F 2 , H 2 CH 2 —, —COO— or a single bond;
OCF 3 , CF 3 , OCHF 2 and Cl are shown, and Y 1 and Y 2 each independently represent H or F. Further, each atom constituting these compounds may be substituted with its isotope atom. )
(I−1)、(I−2)、(I−3)、(I−4)、
(I−5)および(I−6)からなる化合物群から選択
される化合物を少なくとも1種類含有し、第2成分とし
て、請求項1記載の一般式(II−1)、(II−2)、
(II−3)および(II−4)からなる化合物群から選択
される化合物を少なくとも1種類含有し、第3成分とし
て、一般式(IV−1)、(IV−2)、(IV−3)および
(IV−4)からなる化合物群から選択される化合物を少
なくとも1種類含有することを特徴とする液晶組成物。 【化3】 (式中、Rは炭素数1〜10のアルキル基を示し、Z6
は−CH2CH2−または単結合を示し、XはF、OCF
3、CF3、OCHF2、Clを示し、Y1、Y2は各々独
立してHまたはFを示す。また、これらの化合物を構成
する各原子は、その同位体原子で置換されていてもよ
い。)4. A compound represented by the general formula (I-1), (I-2), (I-3), (I-4) or (I-4) according to claim 1,
The compound of formula (II-1) or (II-2) according to claim 1, which contains at least one compound selected from the group consisting of (I-5) and (I-6), and as a second component. ,
It contains at least one compound selected from the compound group consisting of (II-3) and (II-4), and has, as a third component, one of the general formulas (IV-1), (IV-2), and (IV-3) ) And (IV-4). A liquid crystal composition comprising at least one compound selected from the group consisting of: Embedded image (In the formula, R represents an alkyl group having 1 to 10 carbon atoms, Z 6
Represents —CH 2 CH 2 — or a single bond, X represents F, OCF
3 , CF 3 , OCHF 2 , and Cl, and Y 1 and Y 2 each independently represent H or F. Further, each atom constituting these compounds may be substituted with its isotope atom. )
(I−1)、(I−2)、(I−3)、(I−4)、
(I−5)および(I−6)からなる化合物群から選択
される化合物を少なくとも1種類含有し、第2成分とし
て、請求項1記載の一般式(II−1)、(II−2)、
(II−3)および(II−4)からなる化合物群から選択
される化合物を少なくとも1種類含有し、第3成分とし
て、請求項3記載の一般式(III) で表わされる化合物
群から選択される化合物を少なくとも1種類含有し、第
4成分として、請求項4記載の一般式(IV−1)、(IV
−2)、(IV−3)および(IV−4)からなる化合物群
から選択される化合物を少なくとも1種類含有すること
を特徴とする液晶組成物。5. A compound of the general formula (I-1), (I-2), (I-3), (I-4),
The compound of formula (II-1) or (II-2) according to claim 1, which contains at least one compound selected from the group consisting of (I-5) and (I-6), and as a second component. ,
It contains at least one compound selected from the compound group consisting of (II-3) and (II-4), and is selected from the compound group represented by the general formula (III) according to claim 3 as the third component. And at least one compound represented by the formula (IV-1) or (IV-1)
-2) A liquid crystal composition comprising at least one compound selected from the group consisting of (IV-3) and (IV-4).
晶組成物を用いた液晶表示素子。6. A liquid crystal display device using the liquid crystal composition according to claim 1.
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