JPH0317185A - Liquid crystal composition - Google Patents
Liquid crystal compositionInfo
- Publication number
- JPH0317185A JPH0317185A JP15249389A JP15249389A JPH0317185A JP H0317185 A JPH0317185 A JP H0317185A JP 15249389 A JP15249389 A JP 15249389A JP 15249389 A JP15249389 A JP 15249389A JP H0317185 A JPH0317185 A JP H0317185A
- Authority
- JP
- Japan
- Prior art keywords
- liquid crystal
- crystal compound
- formula
- cnh2n
- expressed
- 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 46
- 239000000203 mixture Substances 0.000 title claims abstract description 21
- 150000001875 compounds Chemical class 0.000 claims abstract description 32
- 125000000217 alkyl group Chemical group 0.000 claims abstract description 6
- 239000000126 substance Substances 0.000 claims 4
- 125000003342 alkenyl group Chemical group 0.000 abstract description 3
- 230000000052 comparative effect Effects 0.000 description 5
- 238000002156 mixing Methods 0.000 description 5
- 229910052799 carbon Inorganic materials 0.000 description 4
- 239000013078 crystal Substances 0.000 description 4
- 239000002131 composite material Substances 0.000 description 3
- 230000000712 assembly Effects 0.000 description 2
- 238000000429 assembly Methods 0.000 description 2
- 230000005669 field effect Effects 0.000 description 2
- 239000007788 liquid Substances 0.000 description 2
- 241000219112 Cucumis Species 0.000 description 1
- 235000015510 Cucumis melo subsp melo Nutrition 0.000 description 1
- FJJCIZWZNKZHII-UHFFFAOYSA-N [4,6-bis(cyanoamino)-1,3,5-triazin-2-yl]cyanamide Chemical compound N#CNC1=NC(NC#N)=NC(NC#N)=N1 FJJCIZWZNKZHII-UHFFFAOYSA-N 0.000 description 1
- 125000004432 carbon atom Chemical group C* 0.000 description 1
- 238000004040 coloring Methods 0.000 description 1
- 230000007423 decrease Effects 0.000 description 1
- 230000000694 effects Effects 0.000 description 1
- 239000000463 material Substances 0.000 description 1
- 238000005259 measurement Methods 0.000 description 1
- 238000000034 method Methods 0.000 description 1
Landscapes
- Liquid Crystal Substances (AREA)
Abstract
Description
【発明の詳細な説明】
「産業上の利用分野」
本発明は、表示素子等に使用さ！；る液晶組成物に関す
るものであって、詳しくは９０゜ツイスト電界効果型表
示素子、１８０゜〜２７０゜ツイスト電界効果型表示素
子、および色素添加によるゲストーホスト型表示素子等
に使用される肢晶組成物に関するものである。[Detailed Description of the Invention] "Industrial Application Field" The present invention is used for display elements, etc. ; Specifically, it relates to liquid crystal compositions used in 90° twist field effect display devices, 180° to 270° twist field effect display devices, and guest-host display devices with dye addition. The present invention relates to a composition.
「従来技術とその課題」
液晶組戊物を利用した表示素子は低電圧駆動、低消費電
力、軽量、薄形状であるなどの種々の優れた特性を有し
、時計、卓上電子計算機、小形テレビ、端末Ｉｌｌ器等
の表示素子に広く用いられている。ところが従来用いら
れている液晶組戊物では、表示素子に電圧を印加した際
の応答速度が必ずしも十分に速くなかったために、その
Ｍ用分野が限定されていた。"Prior Art and Its Issues" Display elements using liquid crystal assemblies have various excellent characteristics such as low voltage drive, low power consumption, light weight, and thin shape, and are used in watches, desk computers, and small televisions. , is widely used in display elements such as terminal devices. However, the response speed of conventionally used liquid crystal assemblies when a voltage is applied to the display element is not necessarily fast enough, so that the field of use for M is limited.
ところで、肢晶表示素子の応答速度を向上させるには、
■液品組成物の粘度を低下させる方法、■表示器のセル
ギャップ（ｄ）を小さくする方法、の２手段が一般的に
用いられている。By the way, in order to improve the response speed of the limb crystal display element,
Two methods are generally used: (1) reducing the viscosity of the liquid composition; and (2) reducing the cell gap (d) of the display.
ところで液晶表示器のセルギャップ（ｄ）は知られてい
るように、表示器の着色、色むらを防止するためにＴＮ
液品セルの場合、ΔｎＸｄはＩ．０μｍまたは０．５μ
瓜近傍に設定する必要がある。従ってΔｎが小さい演品
組成物を使用する場合、ｄは大きくする必要がある。従
来の肢晶化合物にあっては、その粘度を低下させると、
屈折率異方性Δｎも共に小さくなるために、表示素子の
セルギＹツブを大きくする必要が新たに生じ、そのため
に応答速度を４一分に向」ニさせることができないとい
う不都合があった。By the way, as is known, the cell gap (d) of a liquid crystal display is determined by TN to prevent coloring and color unevenness of the display.
In the case of liquid cell, ΔnXd is I. 0μm or 0.5μ
It is necessary to set it near the melon. Therefore, when using a performance composition with a small Δn, d needs to be large. In the case of conventional crystalline compounds, when the viscosity is lowered,
Since the refractive index anisotropy Δn also decreases, it becomes necessary to increase the size of the Y-tube of the display element, which causes the inconvenience that the response speed cannot be increased to 41 minutes.
本発明者らは、表示素子に電圧を印加した際の応答速度
が速い液晶組威物を提供することを目的として研究を進
めた結果、本発明に到達した。The present inventors have conducted research aimed at providing a liquid crystal composite that has a high response speed when a voltage is applied to a display element, and as a result, they have arrived at the present invention.
「課題を解決するための手段」 その解決手段とした。"Means to solve problems" This was the solution.
本発明において使用し得る液晶化合物（１）としては、
例えば以下のような化合物を挙げろことができる。The liquid crystal compound (1) that can be used in the present invention includes:
For example, the following compounds may be mentioned.
ｆｉ晶化合Ｔｈ （ １− ２） ＣＨ５− Ｃ｝ｒ−
ＣＨ− ＣＨ２− ＣＨｅＣＨ２−ＣＨ，アルケニル基
を表わし、Ｒ，は一般式ＣｍＨｙｍ＋＋で示される直鎖
アルキル基を表わし、ｎ，ｍはいずれら１〜１０の整数
である。）で表される液晶化合物（以下、液晶化合物（
１）と略称する。）と、誘電率異方性が正の液晶化合物
（以下、妓品化合物（ＩＩ）と略称する。）とを、少な
くとも含有することをまた本発明において使用し得る液
晶化合物（ｎ）としては、以下のような化合物を挙げる
ことがで（式中、Ｒ，はＣ ｎＨ ｔｎ＋＋またはＣＩ
Ｈｔｎ−＋を表し、ｎは３〜７の整数である。）
（式中、Ｒ，はＣｎＨｔｎ＋＋、またはＣ ｎＨ ｔｎ
＋＋ｃ Ｏ Ｏを表し、ｎは３〜８である。）
（式中、Ｒ，はＣ ｎ！｛ ２ｎ＋＋ｑ Ｃ ｎＨ ｔ
’ｎ＋＋ｏまたはＣ ｎｌ｛ ｔｎ＋ＩＣ Ｏ Ｏを表
し、ｎは３〜９の整数である。）ｎは３〜５の整数であ
る。）
また、この発明の肢晶組成物中への上記液晶化合物（ｒ
）の配合割合は、３０重量％前後が好ましく、残部は主
として上記肢晶化合物（ＩＩ）であり、必要に応じてさ
与に他の液晶化合物を添加しても良い。fi crystal compound Th (1-2) CH5- C}r-
CH- CH2- CHeCH2-CH represents an alkenyl group, R represents a straight chain alkyl group represented by the general formula CmHym++, and n and m are both integers of 1 to 10. ) (hereinafter referred to as liquid crystal compound (
It is abbreviated as 1). ) and a liquid crystal compound having a positive dielectric constant anisotropy (hereinafter abbreviated as a gicom compound (II)). The liquid crystal compound (n) that can be used in the present invention includes The following compounds may be mentioned (wherein R, is C nH tn++ or CI
Htn-+, where n is an integer from 3 to 7. ) (wherein, R is CnHtn++ or CnHtn
++c O O, and n is 3 to 8. ) (wherein, R, is C n!{ 2n++q C nH t
'n++o or C nl{ tn+IC O O, where n is an integer from 3 to 9. )n is an integer from 3 to 5. ) Furthermore, the above liquid crystal compound (r
) is preferably about 30% by weight, the remainder being mainly the crystalline compound (II), and other liquid crystal compounds may be added as necessary.
「実施例」 以下、実施例によって本発明をさらに詳細に説明する。"Example" Hereinafter, the present invention will be explained in more detail with reference to Examples.
（比較例１）
（式中、Ｒ，は炭素数ｉ〜１０の直鎖アルキル基を表わ
す。）
（式中、Ｒ，はＣ ｎＨ ｔｎ＋１またはＣ ｎＨ ｔ
ｎ−＋を表し、上記配合一比で混合して比較例１の液晶
組戊物とした。(Comparative Example 1) (In the formula, R represents a linear alkyl group having from i to 10 carbon atoms.) (In the formula, R is C nH tn+1 or C nH t
The liquid crystal composition of Comparative Example 1 was obtained by mixing the liquid crystal composition in the above-mentioned ratio.
上記配合比で混合して比較例２の液晶組戊物とした。A liquid crystal composite of Comparative Example 2 was obtained by mixing at the above blending ratio.
ｃ，ｎ，＜Ｅ）−ｃｏｏ普ＯＣ２Ｈｓ
２３、５重量憾
ｃｌＨ，モン００Ｄｏｃ，Ｈ，
２３５
Ｃ５Ｈ，べＤＣ＝Ｃ−＠−ＯＣＨ．
ｌ００ ＃
ｃ２Ｈｓ−＠−ｃｏｏ−＠−ｃＮ
１ ０．０
０４Ｈ心八式ＣＮ
１００
Ｃ，Ｈ，べ楯わ謔ＣＮ ６０
Ｃ，Ｈ，｛Ｅ）−ＣＯＯＧＣＨ２ＣＨ々ｌ｝−Ｃ，Ｈ，
８．０上記配合比で混合して比較例３の液晶組成物
とした。c, n, <E) -coo OC2Hs 23, 5 weight Sorry clH, Mon 00Doc, H, 235 C5H, BeDC=C-@-OCH. 100 # c2Hs-@-coo-@-cN 1 0.0 04H Shinhachishiki CN 100 C, H, Betatewa CN 60 C, H, {E)-COOGCH2CH}-C, H,
8.0 The liquid crystal composition of Comparative Example 3 was prepared by mixing at the above blending ratio.
（実施例ｌ）
上記比較例１の液晶組成物８０重量％に、液晶化合物（
Ｉ−３）および液晶化合物（１−４）を、それぞれｌＯ
重量％づつ添加して実施例１の肢晶組成物とした。(Example 1) A liquid crystal compound (
I-3) and liquid crystal compound (1-4), respectively, at 1O
The crystalline composition of Example 1 was prepared by adding in weight % by weight.
（実施例２）
上記比較例ｌの肢品組戊物８０重量％に、液晶化合物（
１−５）を２０重量％添加して実施例２の液晶組成物と
した。(Example 2) A liquid crystal compound (
1-5) was added in an amount of 20% by weight to obtain a liquid crystal composition of Example 2.
（実施例３）
上記比較例Ｉの液晶組成物７０重量％に、液晶化合物（
１−３）、液晶化合物（１−４）、液晶化合物（ｒ−５
）をそれぞれ１０重量％づつ添加して実施例３の岐晶組
成物とした。(Example 3) A liquid crystal compound (
1-3), liquid crystal compound (1-4), liquid crystal compound (r-5
) were added in an amount of 10% by weight each to obtain the forked crystal composition of Example 3.
（実施例４）
上記比較例２の液晶組戊物８０重量％に、液晶化合物（
１−３）、液晶化合物（１−４）をそれぞれＩＯ重量％
づつ添加して実施例４の液晶組成物とした。(Example 4) A liquid crystal compound (
1-3) and liquid crystal compound (1-4) in IO weight%, respectively.
The liquid crystal composition of Example 4 was obtained by adding the liquid crystal composition in batches.
（実施例５）
上記比較例２の液晶組戊物８０重量％に、液晶化合物（
１−５）を２０重量％添加して実施例５の液晶組戊物と
した。(Example 5) A liquid crystal compound (
1-5) was added in an amount of 20% by weight to obtain a liquid crystal assembly of Example 5.
（実施四６）
上記比較例３の液晶組成物８０重量％に、液晶化合物（
１−３）、液晶化合物（１−４）をそれぞれｌＯ重量％
づつ添加して実施例６の肢晶組戊物とした。(Example 46) A liquid crystal compound (
1-3) and liquid crystal compound (1-4) at 10% by weight, respectively.
The crystal composite material of Example 6 was obtained by adding the following materials in batches.
（実施例７）
上記比較例３の液晶組成物８０重量％に、液晶化合物（
＋−５）を２０重量％添加して実施例７の液晶組成物と
した。(Example 7) A liquid crystal compound (
+-5) was added in an amount of 20% by weight to obtain a liquid crystal composition of Example 7.
このようして得られた実施例ｌないし実施例７および比
較例１ないし比較例３の各液晶組成物の特性を測定した
。なお測定に用いたセルのギャップはΔｎＸｄ＝１にな
るように設定した。この結果を表ｌに示した。またさら
にこれら液晶組成物を用いてＴＮセルを作製し、その表
示特性を測定した。この結果も表１に併せて示した。The characteristics of each of the liquid crystal compositions of Examples 1 to 7 and Comparative Examples 1 to 3 thus obtained were measured. Note that the gap of the cell used in the measurement was set so that ΔnXd=1. The results are shown in Table 1. Furthermore, TN cells were fabricated using these liquid crystal compositions, and their display characteristics were measured. The results are also shown in Table 1.
表１の結果から、この発明の液晶組成物は、いずれも、
応答特性に優れたものであることが確認できた。From the results in Table 1, it can be seen that the liquid crystal compositions of the present invention all have
It was confirmed that the response characteristics were excellent.
（以下、余白）
「発明の効果」
以上説明したように、この発明の液晶組戊物は、を表わ
し、Ｒ１は一般式ＣｎＨｔ。１で示される直鎖アルケニ
ル基を表わし、Ｒ，は一般式ＣｉＨｔｍ＋＋で示される
直鎖アルキル基を表わし、ｎ１はいずれも！−１０の整
数である。）で表される液晶化合物と、誘電率異方性が
正の液晶化合物とを、少なくとも含有するものであるの
で、従来の液晶組戚物と比較して極めて早い応答速度を
示すものとなる。(Hereinafter, blank space) "Effects of the Invention" As explained above, the liquid crystal composition of the present invention represents the general formula CnHt. 1 represents a straight chain alkenyl group, R, represents a straight chain alkyl group represented by the general formula CiHtm++, and n1 is ! -10 integer. ) and a liquid crystal compound with positive dielectric constant anisotropy, it exhibits an extremely fast response speed compared to conventional liquid crystal compounds.
Claims (1)
化学式、表等があります▼または▲数式、化学式、表等
があります▼ を表わし、Ｒ＿１は一般式ＣｎＨ＿２＿ｎ＿−＿１で示
される直鎖アルケニル基を表わし、Ｒ＿２は一般式Ｃｍ
Ｈ＿２＿ｍ＿＋＿１で示される直鎖アルキル基を表わし
、ｎ、ｍはいずれも１〜１０の整数である。）で表され
る液晶化合物と、誘電率異方性が正の液晶化合物とを、
少なくとも含有することを特徴とする液晶組成物。[Claims] General formula▲There are mathematical formulas, chemical formulas, tables, etc.▼...(I) (In the formula, ▲There are mathematical formulas, chemical formulas, tables, etc.▼ is ▲Mathematical formula,
There are chemical formulas, tables, etc. ▼ or ▲ There are mathematical formulas, chemical formulas, tables, etc.
It represents a linear alkyl group represented by H_2_m_+_1, where n and m are both integers of 1 to 10. ) and a liquid crystal compound with positive dielectric anisotropy,
A liquid crystal composition comprising at least
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15249389A JPH0317185A (en) | 1989-06-15 | 1989-06-15 | Liquid crystal composition |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| JP15249389A JPH0317185A (en) | 1989-06-15 | 1989-06-15 | Liquid crystal composition |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| JPH0317185A true JPH0317185A (en) | 1991-01-25 |
Family
ID=15541673
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| JP15249389A Pending JPH0317185A (en) | 1989-06-15 | 1989-06-15 | Liquid crystal composition |
Country Status (1)
| Country | Link |
|---|---|
| JP (1) | JPH0317185A (en) |
Cited By (4)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996034071A1 (en) * | 1995-04-25 | 1996-10-31 | Chisso Corporation | Liquid crystal composition and liquid crystal display element |
| WO1997042273A1 (en) * | 1996-05-08 | 1997-11-13 | Chisso Corporation | Liquid crystal composition and liquid crystal display |
| JP2003518154A (en) * | 1999-12-21 | 2003-06-03 | 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 ハフトング | Liquid crystal medium |
| US8211512B2 (en) | 2009-07-02 | 2012-07-03 | Jnc Corporation | Liquid Crystal composition and liquid crystal display device |
-
1989
- 1989-06-15 JP JP15249389A patent/JPH0317185A/en active Pending
Cited By (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| WO1996034071A1 (en) * | 1995-04-25 | 1996-10-31 | Chisso Corporation | Liquid crystal composition and liquid crystal display element |
| US5779933A (en) * | 1995-04-25 | 1998-07-14 | Chisso Corporation | Liquid crystal composition and liquid crystal display element |
| WO1997042273A1 (en) * | 1996-05-08 | 1997-11-13 | Chisso Corporation | Liquid crystal composition and liquid crystal display |
| JP2003518154A (en) * | 1999-12-21 | 2003-06-03 | 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 ハフトング | Liquid crystal medium |
| US8211512B2 (en) | 2009-07-02 | 2012-07-03 | Jnc Corporation | Liquid Crystal composition and liquid crystal display device |
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