JPS6143694A - Liquid crystal composition - Google Patents
Liquid crystal compositionInfo
- Publication number
- JPS6143694A JPS6143694A JP16506784A JP16506784A JPS6143694A JP S6143694 A JPS6143694 A JP S6143694A JP 16506784 A JP16506784 A JP 16506784A JP 16506784 A JP16506784 A JP 16506784A JP S6143694 A JPS6143694 A JP S6143694A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- crystal composition
- compound
- formulas
- tables
- 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.)
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Abstract
Description
【発明の詳細な説明】
く技術分野〉
本発明は正の誘電異方性を示すネマチック液晶組成物に
関するものである〇
近年１車載用クロツク、デジタルチェーニングシステム
等の表示装置に広温度範囲、広視野角液晶組成物が要求
されている。Detailed Description of the Invention Technical Field The present invention relates to a nematic liquid crystal composition exhibiting positive dielectric anisotropy. Viewing angle liquid crystal compositions are required.
〈従来技術〉
従来の液晶組成物を用いた液晶表示装置はΔｎがα１３
程度のシクロヘキサン系であり広温度範囲にしようとす
ると視野角が狭くなるという欠点があった・従来の液晶
組成物を用いた視角コントラスト特性を第３図に示す・
ここで第１図を用いて液晶セルの視角について定義する
。角度θは、明視方向１から右回りのずれを１角度θは
液晶セルの法線方向２からのずれを示す０（条件はスタ
ティック駆動１電圧５ｖ１フレーム周波′ｆ＆５２Ｈｚ
）
〈発明の目的〉
本発明の目的は、従来の液晶組成物のかかる欠点を除失
し、明視方向でコントラストが良く、明視方向と直交す
る方向で視野角の広い液晶組成物を提供する点にある・
本発明の他の目的は広温度範囲（−ＳＯｔ＋〜９５℃）
で駆動できる液晶組成物を提供する点にある〇
〈発明の構成〉
本発明は上記目的に基き上記条件を満足する液晶組成物
を提供するものであり、
一般式
％式％（１）
Ｒ，は炭素数２〜７の直鎖アルキル基
Ｒ′ 〃 ２〜７
Ｒ１〃２〜７
Ｒ′ 〃 ２〜７
Ｒ８〃 ２〜７
Ｒ／ ｚ ２〜７１
Ｒ〃 ２〜８
Ｒ，Ｉ ’ｌ〜８
Ｒ： ＃ ２〜８
Ｒ暮 〃 ２〜８
Ｒ〃 ２〜８
Ｒ′ ＃ ２〜８
Ｒ〃 ２〜８
Ｒｉ ｓ ２〜８
で表わされる各群（１）〜（８）の化合物を各々少なく
とも一成分含有することを特徴とする液晶組成物により
上記目的を達成するものである。<Prior art> In a liquid crystal display device using a conventional liquid crystal composition, Δn is α13.
Since it is a cyclohexane-based liquid crystal, it has the disadvantage that the viewing angle becomes narrow when trying to use a wide temperature range.The viewing angle contrast characteristics using a conventional liquid crystal composition are shown in Figure 3.
Here, the viewing angle of the liquid crystal cell will be defined using FIG. Angle θ indicates a clockwise deviation from the clear viewing direction 1, and 0 indicates a deviation from the normal direction 2 of the liquid crystal cell (conditions are static drive 1 voltage 5v 1 frame frequency 'f & 52Hz)
) <Object of the Invention> The object of the present invention is to eliminate such drawbacks of conventional liquid crystal compositions, and to provide a liquid crystal composition that has good contrast in the clear vision direction and a wide viewing angle in the direction orthogonal to the clear vision direction. Another object of the present invention is to provide a wide temperature range (-SOt+ to 95°C)
〇<Structure of the Invention> The present invention provides a liquid crystal composition that satisfies the above conditions based on the above object, and has the general formula % formula % (1) R, is a straight-chain alkyl group having 2 to 7 carbon atoms R' 2-7 R1 2-7 R' 2-7 R8 2-7 R/ z 2-71 R 2-8 R,I'l~ 8 R: #2-8 R 2-8 R 2-8 R'# 2-8 R 2-8 Ris 2-8 The compounds of each group (1) to (8) represented by The above object is achieved by a liquid crystal composition characterized by containing at least one component.
〈実施例〉
第１表は本発明の液晶組成物の具体例である＠化合物（
１）の具体例をα〜ｄに、化合物（２）の具体例を一〜
？に、化合物（３）の具体例を五〜ｊに、化合物（４）
の具体例をに一情に、化合物（５）の具体例をｎ−１に
化合物（６）の具体例をｐ〜デに、化合物（７）の具体
例をＳ −ｔに、化合物（８）の具体例を１〜νにそれ
ぞれ示す・
化合物（１）はシクロヘキシルシクロヘキシルエタン系
の液晶化合物であり、粘性が低く、液晶組成物全体の粘
性を透明点を下げずに下げる効果をもつ、又Δｎが小さ
く液晶組成物としてのΔ３を下ケル。化合物（２１はシ
クロヘキシルフェニルエタン系の低粘性液晶化合物であ
る・化合物（３）はシフ豐ヘキシルビフェニルエタン系
の液晶化合物であり透明点が高く粘性が低い。化合物（
４） 、 （ａ）はＰＯＨ（フェニルシク■ヘキサンの
略）系の液晶で粘性が低く特に低温での粘性低下に効果
的である。<Examples> Table 1 shows @compounds (
Specific examples of compound (1) are α to d, and specific examples of compound (2) are 1 to d.
? , specific examples of compound (3) are shown in 5-j, and compound (4)
The specific example of compound (5) is n-1, the specific example of compound (6) is p to de, the specific example of compound (7) is S - t, the compound (8 ) are shown in 1 to ν, respectively. Compound (1) is a cyclohexylcyclohexylethane-based liquid crystal compound, has low viscosity, and has the effect of lowering the viscosity of the entire liquid crystal composition without lowering the clearing point. Δn is small and Δ3 as a liquid crystal composition is lower than Δn. Compound (21 is a cyclohexyl phenylethane-based liquid crystal compound with low viscosity. Compound (3) is a Schiffung hexyl biphenylethane-based liquid crystal compound with a high clearing point and low viscosity. Compound (
4), (a) is a POH (abbreviation for phenylhexane) liquid crystal, which has low viscosity and is particularly effective in reducing viscosity at low temperatures.
化合物（６）はＭＯＨ；Ａの液晶化合物である・化合物
（６）はΔ外が小さくこれにより明るい外視や広い視野
角を得ることができる＠化合物（７）はＢｏＨ（ピフェ
ニルシクロヘキサンの略）系の液晶化合物である。化合
物（７）は透明点が高く、液晶組成物としての温度範圧
を広げることができ、粘性も低い。Compound (6) is a liquid crystal compound of MOH; ) system liquid crystal compound. Compound (7) has a high clearing point, can widen the temperature range as a liquid crystal composition, and has low viscosity.
化合物（８＞は０ＢＯＨ（シクロヘキサンビ７工二ルー
シクロヘキサンの略）系の液晶化合物である〇化合物（
８）は透明点が非常に高く液晶組成物の透明点を高くし
液晶温度範囲を広げるのに有効である・化合物（７）
ｌ （８）は液晶組成物中に多く含有させすぎると低温
で析出しやすくなるため含有重量％は、上記重量％内で
調節した＠
第−表 ・Ｓ・＝８ｍｓ’ｃｔｉａ
、ｘ・・山ｔｒｏｐｉ。Compound (8> is a 0BOH (abbreviation for cyclohexane bi7-di-cyclohexane) liquid crystal compound.
Compound (7) has a very high clearing point and is effective for increasing the clearing point of liquid crystal compositions and widening the liquid crystal temperature range.
If too much (8) is included in the liquid crystal composition, it tends to precipitate at low temperatures, so the weight percent content was adjusted within the above weight percent. Tropi.
第二表に本発明の液晶組成−物の竺施例を、又第２図に
本発明の液晶組成物を用いた液晶表示装置の視角フント
ラスト特性を示す。実施例１〜３に示される液晶組成物
は、いずれ本化合物（１）〜（８）をそれぞれ含み、構
成されている。第二表、第２図（、）〜（６）に示され
るように実施例−１〜５の液晶組成物は透明点が高く高
温での液晶−ｉ°範囲が広い・実施例１〜５の液晶組成
物はいずれも透明点が９５℃以上である０また低温にお
いても液晶組成物中に異常がなく一５０℃で２週間放置
しても液晶が析出したり凍ったりすることがなく低温に
おける液晶温度範囲も広いり又明視方向と直交する方向
で視野角が広く、コントラスト比も高い。実施例１〜３
には若干の差がみられる。実施例１は駆動温度が−ｓθ
℃〜１０５℃と高く、低温信頼性も高い。又第２図（ａ
）に示すように明視方向と直交する方向での視角コント
ラストが良く、良いコントラストを示す視野角が広がり
ている◎実施例２は、シクロヘキシルシクロヘキシルエ
タン系の化合物（１１を減らしたため第２図（ｂ）に示
されるように実施例１よりも同視角野における視角コン
トラストが若子落ちている・液晶温度範囲は一３０℃〜
１０６℃と広く、低温！頼性も２０日以上と良い。Table 2 shows examples of the liquid crystal composition of the present invention, and FIG. 2 shows viewing angle contrast characteristics of a liquid crystal display device using the liquid crystal composition of the present invention. The liquid crystal compositions shown in Examples 1 to 3 each contain the present compounds (1) to (8), respectively. As shown in Table 2 and Figure 2 (,) to (6), the liquid crystal compositions of Examples 1 to 5 have a high clearing point and a wide liquid crystal i° range at high temperatures.Examples 1 to 5 All of the liquid crystal compositions have a clearing point of 95°C or higher.Also, there is no abnormality in the liquid crystal composition even at low temperatures, and the liquid crystal does not precipitate or freeze even if left at 50°C for two weeks. The liquid crystal temperature range is wide, the viewing angle is wide in the direction orthogonal to the clear viewing direction, and the contrast ratio is high. Examples 1-3
There are some differences. In Example 1, the driving temperature is -sθ
℃~105℃, and low temperature reliability is also high. Also, Figure 2 (a
), the viewing angle contrast in the direction orthogonal to the clear viewing direction is good, and the viewing angle showing good contrast is wide. ◎Example 2 is a cyclohexylcyclohexylethane compound (see Figure 2 ( As shown in b), the visual angle contrast in the same viewing field is lower than in Example 1.The liquid crystal temperature range is -30℃~
A wide and low temperature of 106℃! Reliability is also good at over 20 days.
実施例３は０ＢＯＨ系液晶化合物（８）を減らしたため
液晶温度範囲が一３０℃〜９７℃と着干せばまっている
。視野角・視角フントラストについては第２［（＋３の
通り良好である〇
〈効 果〉
このように本発明の液晶組成物は車載用クロック、デジ
タルチェーニングシステム等の液晶表示装置に用いた場
合、広温度範囲、広視野角、良好な視角コントラスト・
低温信頼性を与えるものである＠
Ｌ ｖ！：ｉ面の簡単な説明
第１１！！！Ｉは液晶セルの視角を示す０第２図（ｉ）
〜（ｃ）は本発明の液晶組成物を用いた液晶表示体の視
角コントラスト特性を示す・第３図は従来の液晶組成物
を用いた液晶表示体の視角コントラスト特性を示す。In Example 3, since the content of the 0BOH liquid crystal compound (8) was reduced, the liquid crystal temperature range was 130°C to 97°C. As for the viewing angle/viewing angle stability, the results are as follows: 2. Good as +3 (Effects) As described above, when the liquid crystal composition of the present invention is used in liquid crystal display devices such as car clocks and digital chaining systems, Wide temperature range, wide viewing angle, and good viewing angle contrast.
@ L v! which provides low temperature reliability. : Simple explanation of i-side No. 11! ! ! I indicates the viewing angle of the liquid crystal cell 0 Figure 2 (i)
-(c) shows the viewing angle contrast characteristics of a liquid crystal display using the liquid crystal composition of the present invention. FIG. 3 shows the viewing angle contrast characteristics of a liquid crystal display using a conventional liquid crystal composition.
デ Ｃｂ） ｆ ′：（Ｃ）de Cb) f: (C)
Claims (1)
一成分含有することを特徴とする液晶組成物。 但し Ｒ＿１ は炭素数２〜７の直鎖アルキル基 Ｒ＿１′ 〃 ２〜７ 〃 Ｒ＿２ は炭素数２〜７の直鎖アルキル基 Ｒ＿２′ 〃 ２〜７ 〃 Ｒ＿３ 〃 ２〜７ 〃 Ｒ＿３′ 〃 ２〜７ 〃 Ｒ＿４ 〃 ２〜８ 〃 Ｒ＿５ 〃 ２〜８ 〃 Ｒ＿５′ 〃 ２〜８ 〃 Ｒ＿６ 〃 ２〜８ 〃 Ｒ＿７ 〃 ２〜８ 〃 Ｒ＿７′ 〃 ２〜８ 〃 Ｒ＿８ 〃 ２〜８ 〃 Ｒ＿８′ 〃 ２〜８ 〃 ２） 化合物（１）の割合が２〜１０重量％ 〃 （２） 〃 ５〜１５ 〃 〃 （３） 〃 ２０〜３０ 〃 〃 （４） 〃 ５〜１５ 〃 〃 （５） 〃 ２〜１０ 〃 〃 （６） 〃 １〜１０ 〃 〃 （７） 〃 １５〜３０ 〃 化合物（８）の割合が５〜１５重量％ である事を特徴とする特許請求範囲第１項記載の液晶組
成物。[Claims] 1) General formula ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼ (1) ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼ (2) ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼ (3) ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼ (4) ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼ (5) ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼ (6) ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼ (7 ) ▲ There are mathematical formulas, chemical formulas, tables, etc. ▼ (8) A liquid crystal composition characterized by containing at least one component of each of the compounds of each group (1) to (9) represented by the following. However, R_1 is a straight-chain alkyl group having 2 to 7 carbon atoms R_1' 〃 2-7 〃 R_2 is a straight-chain alkyl group having 2 to 7 carbon atoms R_2' 〃 2-7 〃 R_3 〃 2-7 〃 R_3' 〃 2- 7 〃 R_4 〃 2-8 〃 R_5 〃 2-8 〃 R_5' 〃 2-8 〃 R_6 〃 2-8 〃 R_7 〃 2-8 〃 R_7' 〃 2-8 〃 R_8 〃 2-8 〃 R ＿８′ 〃 ２ ~8 2) The proportion of compound (1) is 2 to 10% by weight (2) 5 to 15 (3) 20 to 30 (4) 5 to 15 (5) 2 -10〃〃(6)〃1-10〃〃(7)〃15-30〃 The liquid crystal composition according to claim 1, characterized in that the proportion of compound (8) is 5 to 15% by weight. thing.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16506784A JPS6143694A (en) | 1984-08-07 | 1984-08-07 | Liquid crystal composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP16506784A JPS6143694A (en) | 1984-08-07 | 1984-08-07 | Liquid crystal composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPS6143694A true JPS6143694A (en) | 1986-03-03 |
Family
ID=15805237
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP16506784A Pending JPS6143694A (en) | 1984-08-07 | 1984-08-07 | Liquid crystal composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPS6143694A (en) |
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5389294A (en) * | 1989-05-15 | 1995-02-14 | Merck Patent Gesellschaft Mit Beschrankter Haftung | Chlorobenzene derivatives |
| JP2016169377A (en) * | 2015-03-10 | 2016-09-23 | メルク パテント ゲゼルシャフト ミット ベシュレンクテル ハフツングＭｅｒｃｋ Ｐａｔｅｎｔ Ｇｅｓｅｌｌｓｃｈａｆｔ ｍｉｔ ｂｅｓｃｈｒａｅｎｋｔｅｒ Ｈａｆｔｕｎｇ | Liquid crystalline medium |
-
1984
- 1984-08-07 JP JP16506784A patent/JPS6143694A/en active Pending
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5389294A (en) * | 1989-05-15 | 1995-02-14 | Merck Patent Gesellschaft Mit Beschrankter Haftung | Chlorobenzene derivatives |
| JP2016169377A (en) * | 2015-03-10 | 2016-09-23 | メルク パテント ゲゼルシャフト ミット ベシュレンクテル ハフツングＭｅｒｃｋ Ｐａｔｅｎｔ Ｇｅｓｅｌｌｓｃｈａｆｔ ｍｉｔ ｂｅｓｃｈｒａｅｎｋｔｅｒ Ｈａｆｔｕｎｇ | Liquid crystalline medium |
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