TWI504731B - A liquid crystal composition, and a liquid crystal display device using the liquid crystal display device - Google Patents
A liquid crystal composition, and a liquid crystal display device using the liquid crystal display device Download PDFInfo
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本案發明係關於一種用作液晶顯示裝置等之構成構件之液晶組成物及液晶顯示元件。The present invention relates to a liquid crystal composition and a liquid crystal display element which are used as constituent members of a liquid crystal display device or the like.
液晶顯示元件係以時鐘、計算器為代表而使用於各種測定機器、汽車用面板、文字處理機、電子記事本、印表機、電腦、電視、時鐘、廣告顯示板等。作為液晶顯示方式,其代表者有TN(Twisted Nematic,扭轉向列)型、STN(Super Twisted Nematic,超扭轉向列)型、使用TFT(Thin Film Transistor,薄膜電晶體)之VA(Vertical Aligned,垂直配向)型或IPS(In-Plane Switching,共平面切換)型等。該等液晶顯示元件中使用之液晶組成物要求對於水分、空氣、熱、光等外部主要原因較為穩定,又,以室溫為中心於儘可能較寬之溫度範圍內表現液晶相,為低黏性,且驅動電壓較低。進而,液晶組成物係為了將對於各顯示元件均最佳之介電各向異性(△ε)或/及折射率各向異性(△n)等設為最佳值,而由數種至數十種化合物構成。The liquid crystal display element is used for various measuring apparatuses, automobile panels, word processors, electronic notebooks, printers, computers, televisions, clocks, advertisement display boards, etc., represented by clocks and calculators. Representative examples of the liquid crystal display method include TN (Twisted Nematic) type, STN (Super Twisted Nematic) type, and TFT (Thin Film Transistor) type (Vertical Aligned, Vertical alignment type or IPS (In-Plane Switching) type. The liquid crystal composition used in the liquid crystal display elements is required to be stable to external factors such as moisture, air, heat, light, etc., and the liquid crystal phase is expressed in a wide temperature range as far as possible at room temperature, and is low in viscosity. Sex, and the driving voltage is low. Further, the liquid crystal composition is preferably an optimum value for the dielectric anisotropy (Δε) or/and the refractive index anisotropy (Δn) for each display element. Ten compounds are composed.
於垂直配向型顯示器中,使用△ε為負之液晶組成物,於液晶TV(TeleVision,電視)等中廣泛使用。另一方面,於所有驅動方式中要求低電壓驅動、高速響應、寬動作溫度範圍。即,要求△ε為正且絕對值較大,黏度(η)較小,較高之向列相-各向同性液體相轉移溫度(Tni )。 又,必需根據△n與單元間隙(d)之積即△n×d之設定而將液晶組成物之△n與單元間隙一致地調節為適當之範圍。此外,於將液晶顯示元件應用於電視等之情形時,重視高速響應性,故而要求γ1 較小之液晶組成物。先前,為了構成γ1 較小之液晶組成物,一般情況下使用具有二烷基聯環己烷骨架之化合物(參照專利文獻1)。然而,雖聯環己烷系化合物對於γ1 之減小而言效果較高,但一般情況下蒸氣壓較高且烷基鏈長度較短之化合物之該傾向尤其顯著。又,由於具有Tni 亦較低之傾向,故而烷基聯環己烷系化合物大多使用側鏈長度之合計為碳原子數7以上之化合物,實際情況為並未對側鏈長度較短之化合物進行充分之研究。In the vertical alignment type display, a liquid crystal composition having a negative Δ ε is used, and it is widely used in liquid crystal TV (TeleVision, television) and the like. On the other hand, low voltage drive, high speed response, and wide operating temperature range are required in all drive modes. That is, it is required that Δε is positive and the absolute value is large, the viscosity (η) is small, and the higher nematic phase-isotropic liquid phase transition temperature (T ni ). Further, it is necessary to adjust the Δn of the liquid crystal composition to an appropriate range in accordance with the setting of Δn × d, which is the product of Δn and the cell gap (d), in accordance with the cell gap. Further, when a liquid crystal display element is applied to a television or the like, high-speed responsiveness is emphasized, and thus a liquid crystal composition having a small γ 1 is required. Conventionally, in order to constitute a liquid crystal composition having a small γ 1 , a compound having a dialkylbicyclohexane skeleton is generally used (see Patent Document 1). However, although the cyclohexane-based compound has a high effect on the reduction of γ 1 , the tendency of the compound having a high vapor pressure and a short alkyl chain length is particularly remarkable. In addition, since the T ni is also low, the alkylcyclohexane compound is often a compound having a side chain length of 7 or more in total, and is actually a compound having a short side chain length. Conduct adequate research.
另一方面,液晶顯示元件之用途擴大,其使用方法、製造方法亦發現較大之變化,為了應對於此,要求使如先前已知之基本之物性值以外之特性最佳化。即,使用液晶組成物之液晶顯示元件廣泛使用VA(垂直配向)型或IPS(共平面切換)型等,將其大小亦為50型以上之超大型尺寸之顯示元件實用化而使用。隨著基板尺寸之大型化,液晶組成物之向基板之注入方法亦自先前之真空注入法而轉成滴加注入(ODF:One Drop Fill)法從而成為注入方法之主流(參照專利文獻2),將液晶組成物滴加至基板時之滴加痕跡導致顯示品質之降低而使問題表面化。進而,以使液晶顯示元件中之液晶材料之預傾角之生成具有高速響應性為目的,而開發出PS液晶顯示元件(polymer stabilized,聚合物穩定化)、PSA液晶顯示元件(polymer sustained alignment,聚合物維持配向)(參照專利文獻3),該問題成為更大之問題。即,該等顯示元件於向液晶組成物中添加單體而使組成物中之單體硬化時具有特徵。主動矩陣用液晶組成物根據維持較高之電壓保持率之必要性而言,指定可使用之化合物,化合物中具有酯鍵之化合物之使用受到限制。PSA液晶顯示元件中使用之單體主要為丙烯酸酯系,通常為化合物中具有酯鍵者,此種化合物通常用作主動矩陣用液晶化合物(參 照專利文獻3)。此種異物誘導滴加痕跡之產生,顯示不良引起之液晶顯示元件之良率變差成為問題。又,於向液晶組成物中添加抗氧化劑、光吸收劑等添加物時,良率之變差亦成為問題。On the other hand, the use of the liquid crystal display element has been expanded, and a large change has been found in the method of use and the method of manufacture. In order to cope with this, it is required to optimize characteristics other than the basic physical property values previously known. In other words, a liquid crystal display device using a liquid crystal composition widely uses a VA (Vertical Alignment) type or an IPS (Coplanar Switching) type, and a display element of an ultra-large size having a size of 50 or more is put into practical use. With the increase in the size of the substrate, the method of injecting the liquid crystal composition into the substrate has been changed from the previous vacuum injection method to the ODF (One Drop Fill) method to become the mainstream of the injection method (refer to Patent Document 2). The dropping of the liquid crystal composition when it is dropped onto the substrate causes a decrease in display quality to surface the problem. Further, in order to achieve high-speed responsiveness in the formation of the pretilt angle of the liquid crystal material in the liquid crystal display device, a PS liquid crystal display element (polymer stabilized) and a PSA liquid crystal display element (polymer sustained alignment) have been developed. The object maintains the alignment (see Patent Document 3), and this problem becomes a bigger problem. That is, the display elements are characterized when a monomer is added to the liquid crystal composition to harden the monomer in the composition. The liquid crystal composition for the active matrix specifies a compound which can be used in accordance with the necessity of maintaining a high voltage holding ratio, and the use of a compound having an ester bond in the compound is limited. The monomer used in the PSA liquid crystal display device is mainly an acrylate type, and usually has an ester bond in the compound, and such a compound is generally used as a liquid crystal compound for an active matrix. According to patent document 3). Such foreign matter induces the occurrence of a drop mark, which indicates that the yield of the liquid crystal display element due to the defect is deteriorated. Further, when an additive such as an antioxidant or a light absorber is added to the liquid crystal composition, the deterioration of the yield is also a problem.
此處,所謂滴加痕跡,係定義為於顯示黑色之情形時滴加液晶組成物後之痕跡浮現白色之現象。Here, the "dropping trace" is defined as a phenomenon in which a trace of a liquid crystal composition is dropped when a black color is displayed.
為了抑制滴加痕跡,開發出藉由液晶組成物中混合之聚合性化合物之聚合而於液晶層中形成聚合物層,藉此抑制因與配向控制膜之關係而產生之滴加痕跡之方法(專利文獻4)。然而,要求於並非藉由聚合性化合物之聚合而於液晶層中形成有聚合物層之顯示模式之垂直配向型顯示器中不易產生留痕或滴加痕跡之液晶顯示元件,又,於藉由上述聚合性化合物之聚合而於液晶層中形成有聚合物層之顯示模式中,亦存在因添加至液晶中之聚合性化合物而產生之顯示之留痕之問題,對於抑制滴加痕跡而言,其效果不充分,故要求開發維持作為液晶顯示元件之基本特性,並且不易產生留痕或滴加痕跡之液晶顯示元件。In order to suppress the dropping trace, a method of forming a polymer layer in a liquid crystal layer by polymerization of a polymerizable compound mixed in a liquid crystal composition, thereby suppressing a dropping trace due to a relationship with an alignment control film has been developed ( Patent Document 4). However, a liquid crystal display element which is less likely to cause a mark or a drop mark in a vertical alignment type display in which a display mode of a polymer layer is not formed in a liquid crystal layer by polymerization of a polymerizable compound is required, and In the display mode in which the polymerizable compound is polymerized and the polymer layer is formed in the liquid crystal layer, there is also a problem of display marks caused by the addition of the polymerizable compound in the liquid crystal, and the trace of the drop is suppressed. Since the effect is insufficient, it is required to develop a liquid crystal display element which is a basic characteristic of a liquid crystal display element and which is less likely to cause a mark or a trace.
[專利文獻1]日本專利特表2008-505235號公報[Patent Document 1] Japanese Patent Laid-Open Publication No. 2008-505235
[專利文獻2]日本特開平6-235925號公報[Patent Document 2] Japanese Laid-Open Patent Publication No. Hei 6-235925
[專利文獻3]日本特開2002-357830號公報[Patent Document 3] Japanese Laid-Open Patent Publication No. 2002-357830
[專利文獻4]日本特開2006-058755號公報[Patent Document 4] Japanese Patent Laid-Open Publication No. 2006-058755
本發明所欲解決之問題在於提供一種不使介電各向異性、黏度、向列相上限溫度、低溫下之向列相穩定性、γ1 等作為液晶顯示元件之 各特性及顯示元件之留痕特性變差,不易產生製造時之滴加痕跡,實現ODF步驟之穩定之液晶材料之噴出量且適於液晶顯示元件的液晶組成物及使用其之液晶顯示元件。The problem to be solved by the present invention is to provide a dielectric anisotropy, a viscosity, a nematic phase upper limit temperature, a nematic phase stability at a low temperature, γ 1 or the like as a characteristic of a liquid crystal display element and a display element. The liquid crystal composition which is suitable for a liquid crystal display element and a liquid crystal display element using the liquid crystal display element which is stable in the ODF step and which is stable in the production of the liquid crystal material.
本發明者等人為了解決上述問題,對最適合利用滴加法製作液晶顯示元件之各種液晶組成物之構成進行研究,發現藉由以特定之混合比例使用特定之液晶化合物而可抑制液晶顯示元件之滴加痕跡之產生,從而完成本案發明。In order to solve the above problems, the inventors of the present invention have studied the constitution of various liquid crystal compositions which are most suitable for producing a liquid crystal display element by a dropping method, and have found that it is possible to suppress liquid crystal display elements by using a specific liquid crystal compound at a specific mixing ratio. The invention of the present invention was completed by adding traces.
本案發明提供一種液晶組成物及使用該液晶組成物之液晶顯示元件,該液晶組成物之介電各向異性為負,且含有式(i)所表示之化合物、及式(XIII-1-2)或式(XIII-1-4)所表示之化合物之1種或2種,
本發明之液晶顯示元件具有高速響應性優異,且留痕之產生較少之特徵,由於具有因其製造所致之滴加痕跡產生較少之特徵,故而用於液晶TV、監視器等顯示元件。The liquid crystal display device of the present invention is excellent in high-speed responsiveness and has less feature of occurrence of scars, and is used for display elements such as liquid crystal TVs and monitors because it has less features due to dripping marks caused by its manufacture. .
1‧‧‧偏光板1‧‧‧Polar plate
2‧‧‧基板2‧‧‧Substrate
3‧‧‧透明電極或伴有主動元件之透明電極3‧‧‧Transparent electrode or transparent electrode with active components
4‧‧‧配向膜4‧‧‧Alignment film
5‧‧‧液晶5‧‧‧LCD
11‧‧‧閘極電極11‧‧‧ gate electrode
12‧‧‧陽極氧化皮膜12‧‧‧Anodic Oxide Film
13‧‧‧閘極絕緣層13‧‧‧ gate insulation
14‧‧‧透明電極14‧‧‧Transparent electrode
15‧‧‧汲極電極15‧‧‧汲electrode
16‧‧‧歐姆接觸層16‧‧‧Ohm contact layer
17‧‧‧半導體層17‧‧‧Semiconductor layer
18‧‧‧保護膜18‧‧‧Protective film
19a‧‧‧源極電極119a‧‧‧Source electrode 1
19b‧‧‧源極電極219b‧‧‧Source electrode 2
100‧‧‧基板100‧‧‧Substrate
101‧‧‧保護層101‧‧‧Protective layer
圖1係本發明之液晶顯示元件之結構之一例。Fig. 1 shows an example of the structure of a liquid crystal display element of the present invention.
圖2係逆交錯型薄膜電晶體之構成例。Fig. 2 is a configuration example of an inversely staggered thin film transistor.
如上所述,滴加痕跡之產生之製程目前並不明確,然而,液晶化合物中之雜質與配向膜之相互作用、層析現象等存在相關關係之可能性較高。液晶化合物中之雜質受化合物之製造製程之影響較大,化合物之製造方法係即便僅側鏈之碳原子數不同,亦未必相同。即,液晶化合物係藉由精密之製造製程而製造,故而其成本於化學合成品中較高,強烈要求製造效率之提高。因此,為了使用少許之廉價原料,亦有即便僅側鏈之碳原子數中有一個不同亦完全由其他種原料進行製造之方法效率良好之情形。因此,有液晶原體之製造製程針對各原體而不同之情形,即便製程相同,大部分情況下原料亦不同,其結果,針對各原體而不同之雜質混入之情況較多。然而,即便極其微量之雜質亦可能產生滴加痕跡,僅藉由原體之精製抑制滴加痕跡之產生存在限度。As described above, the process for producing the traces is not clear at present, however, there is a high possibility that the impurities in the liquid crystal compound are correlated with the alignment film and the chromatographic phenomenon. The impurities in the liquid crystal compound are greatly affected by the manufacturing process of the compound, and the method of producing the compound is not necessarily the same even if the number of carbon atoms in the side chain is different. That is, since the liquid crystal compound is produced by a precise manufacturing process, the cost thereof is high in the chemical synthetic product, and the manufacturing efficiency is strongly required to be improved. Therefore, in order to use a small amount of inexpensive raw materials, there is a case where the method of producing completely other raw materials is effective even if only one of the carbon atoms of the side chain is different. Therefore, in the case where the manufacturing process of the liquid crystal precursor differs for each of the originals, even if the processes are the same, the raw materials are often different in most cases, and as a result, impurities which are different for each of the originals are often mixed. However, even a very small amount of impurities may cause dripping marks, and there is a limit in suppressing the occurrence of dripping marks only by the purification of the original body.
另一方面,通用之液晶原體之製造方法於製造製程確立後有針對各原體而決定為固定之傾向。即便於分析技術發展之當前,亦不容易完全明白何種雜質會混入,必需於針對各原體而決定之雜質混入之前提下進行組成物之設計。本案發明者等人對於液晶原體之雜質與滴加痕跡之關係進行研究,結果憑經驗明確有即便包含於組成物中亦不易產生滴加痕跡之雜質、與容易產生之雜質。因此,為了抑制滴加痕跡之產生,較為重要的是以特定之混合比例使用特定之化合物,尤其明確不易產生滴加痕跡之組成物之存在。以下所記載之較佳之實施態樣係根據上述觀點而發現者。On the other hand, the method for producing a general-purpose liquid crystal original has a tendency to be fixed for each original after the manufacturing process is established. That is, it is easy to analyze the current development of the technology, and it is not easy to fully understand which impurities will be mixed in, and it is necessary to carry out the design of the composition before the impurities determined for each of the original bodies are mixed. The inventors of the present invention have studied the relationship between the impurities of the liquid crystal precursor and the traces of the drop, and as a result, it has been empirically confirmed that impurities contained in the composition and the impurities which are likely to be generated are easily formed even in the composition. Therefore, in order to suppress the generation of the dropping trace, it is important to use a specific compound in a specific mixing ratio, and in particular, the presence of a composition which is less likely to cause a dropping trace. The preferred embodiments described below are based on the above findings.
於本發明之液晶組成物中,作為第一成分,含有式(i)所表示之化合物,較佳為含有15~50質量%,更佳為含有20~45質量%,進 而較佳為含有25~40質量%,更具體而言,於重視響應速度之情形時,較佳為含有25~50質量%,於更重視驅動電壓之情形時,較佳為含有20質量%~40質量%。In the liquid crystal composition of the present invention, the compound represented by the formula (i) is contained as the first component, and preferably contains 15 to 50% by mass, more preferably 20 to 45% by mass. Preferably, it is contained in an amount of 25 to 40% by mass, and more specifically, in the case where the response speed is important, it is preferably 25 to 50% by mass, and when the driving voltage is more important, it is preferably 20% by mass. ~40% by mass.
作為第二成分,含有式(XIII-1-2)或式(XIII-1-4)所表示之化合物,較佳為含有4~30質量%,更佳為含有7~25質量%,進而較佳為含有10~25質量%,尤佳為含有11~25質量%。The second component contains a compound represented by the formula (XIII-1-2) or the formula (XIII-1-4), preferably 4 to 30% by mass, more preferably 7 to 25% by mass, and further It is preferably 10 to 25% by mass, and particularly preferably 11 to 25% by mass.
本發明之液晶組成物含有作為第一成分之式(i)所表示之化合物與作為第二成分之式(XIII-1-2)或式(XIII-1-4)所表示之化合物,其含量之合計較佳為29~61質量%,更佳為31~58質量%,進而較佳為33~50質量%,尤佳為35~47質量%。The liquid crystal composition of the present invention contains, as a first component, a compound represented by the formula (i) and a compound represented by the formula (XIII-1-2) or the formula (XIII-1-4) as a second component. The total amount is preferably 29 to 61% by mass, more preferably 31 to 58% by mass, still more preferably 33 to 50% by mass, and particularly preferably 35 to 47% by mass.
進而,本發明之液晶組成物亦可含有1種或2種以上之通式(L)所表示之化合物作為第3成分。Furthermore, the liquid crystal composition of the present invention may contain one or two or more compounds represented by the formula (L) as the third component.
(式中,RL1 及RL2 分別獨立地表示碳原子數1~8之烷基,該烷基中之1個或非鄰接之2個以上之-CH2 -亦可分別獨立地經-CH=CH-、-C≡C-、-O-、-CO-、-COO-或-OCO-取代,OL表示0、1、2或3,BL1 、BL2 及BL3 分別獨立地表示選自由(a)1,4-伸環己基(該基中存在之1個-CH2 -或未鄰接之2個以上之-CH2 -亦可經-O-取代)及(b)1,4-伸苯基(該基中存在之1個-CH=或未鄰接之2個以上之-CH=亦可經-N=取代)(wherein R L1 and R L2 each independently represent an alkyl group having 1 to 8 carbon atoms, and one of the alkyl groups or two or more non-adjacent-CH 2 - may be independently passed through -CH =CH-, -C≡C-, -O-, -CO-, -COO- or -OCO-substitution, OL means 0, 1, 2 or 3, B L1 , B L2 and B L3 are independently selected consisting of (a) 1,4- cyclohexylene (the presence of a group -CH 2 - or two or more of the adjacent -CH 2 - may be replaced by -O-) and (b) 1,4 - a phenyl group (one present in the group -CH= or two or more adjacent to -CH= may also be substituted by -N=)
所組成之群中之基,上述基(a)、基(b)亦可分別獨立地經氰基、氟 原子或氯原子中之任一個取代,LL1 及LL2 分別獨立地表示單鍵、-CH2 CH2 -、-(CH2 )4 -、-OCH2 -、-CH2 O-、-COO-、-OCO-、-OCF2 -、-CF2 O-、-CH=N-N=CH-、-CH=CH-、-CF=CF-或-C≡C-,於OL為2或3且LL2 存在複數個之情形時,該等可相同亦可不同,於OL為2或3且BL3 存在複數個之情形時,該等可相同亦可不同,其中,式(i)所表示之化合物除外)The group (a) and the group (b) may be independently substituted with any one of a cyano group, a fluorine atom or a chlorine atom, and L L1 and L L2 each independently represent a single bond, -CH 2 CH 2 -, -(CH 2 ) 4 -, -OCH 2 -, -CH 2 O-, -COO-, -OCO-, -OCF 2 -, -CF 2 O-, -CH=NN= CH-, -CH=CH-, -CF=CF- or -C≡C-, when OL is 2 or 3 and L L2 has a plurality of cases, the same may be different, and the OL is 2 or 3 and when there are a plurality of B L3 , the same may be the same, except for the compound represented by the formula (i))
RL1 及RL2 係於其鍵結之環結構為苯基(芳香族)之情形時,較佳為直鏈狀之碳原子數1~5之烷基、直鏈狀之碳原子數1~4(或其以上)之烷氧基及碳原子數4~5之烯基,於其鍵結之環結構為環己烷、吡喃及二[口+咢]烷等飽和之環結構之情形時,較佳為直鏈狀之碳原子數1~5之烷基、直鏈狀之碳原子數1~4(或其以上)之烷氧基及直鏈狀之碳原子數2~5之烯基。When R L1 and R L2 are in the case where the ring structure of the bond is phenyl (aromatic), it is preferably a linear alkyl group having 1 to 5 carbon atoms and a linear carbon number of 1~. The alkoxy group of 4 (or more) and the alkenyl group having 4 to 5 carbon atoms, in the case where the ring structure of the bond is a saturated ring structure such as cyclohexane, pyran or di-[phenanthrene] anthracene Preferably, it is a linear alkyl group having 1 to 5 carbon atoms, a linear alkoxy group having 1 to 4 (or more) carbon atoms, and a linear carbon number of 2 to 5 Alkenyl.
於通式(L)所表示之化合物要求液晶組成物之化學穩定性之情形時,較佳為於其分子內不具有氯原子。When the compound represented by the formula (L) requires chemical stability of the liquid crystal composition, it is preferred that the compound does not have a chlorine atom in its molecule.
通式(L)所表示之化合物之介電各向異性(△ε)之下限值於一實施形態中為-3,於另一實施形態中為-2.5。進而於另一實施形態中為-2,進而於另一實施形態中為-1.5。又,進而於另一實施形態中為-1,又,進而於另一實施形態中為-0.5。又,另一方面,通式(L)所表示之化合物之介電各向異性(△ε)之上限值於一實施形態中為3,於另一實施形態中為2.5。進而於另一實施形態中為2,進而於另一實施形態中為1.5。又,進而於另一實施形態中為1,又,進而於另一實施形態中為0.5。The lower limit of the dielectric anisotropy (Δε) of the compound represented by the formula (L) is -3 in one embodiment, and -2.5 in another embodiment. Further, in another embodiment, it is -2, and in another embodiment, it is -1.5. Further, in still another embodiment, it is -1, and further, in another embodiment, it is -0.5. On the other hand, the upper limit of the dielectric anisotropy (Δε) of the compound represented by the general formula (L) is 3 in one embodiment, and 2.5 in another embodiment. Further, in another embodiment, it is 2, and in another embodiment, it is 1.5. Further, in still another embodiment, it is 1, and further, in another embodiment, it is 0.5.
可組合之化合物之種類並無特別限制,根據低溫下之溶解性、轉移溫度、電性可靠性、雙折射率等所期望之性能而適當組合使用。使用之化合物之種類例如於本發明之一實施形態中為1種。或於本發明之 另一實施形態中為2種。又,於本發明之另一實施形態中為3種。進而,於本發明之另一實施形態中為4種。進而,於本發明之另一實施形態中為5種以上。The type of the compound which can be combined is not particularly limited, and may be appropriately combined and used depending on the desired properties such as solubility at low temperature, transfer temperature, electrical reliability, and birefringence. The type of the compound to be used is, for example, one of the embodiments of the present invention. Or in the invention In another embodiment, there are two types. Further, in another embodiment of the present invention, there are three types. Further, in another embodiment of the present invention, there are four types. Further, in another embodiment of the present invention, it is five or more.
於本發明之液晶組成物中,通式(L)所表示之化合物之含量必需根據低溫下之溶解性、轉移溫度、電性可靠性、雙折射率、製程適合性、滴加痕跡、留痕、介電各向異性或揮發性等所要求之性能而適當調整。In the liquid crystal composition of the present invention, the content of the compound represented by the formula (L) must be based on solubility at low temperature, transfer temperature, electrical reliability, birefringence, process suitability, traces of traces, and traces. The performance required for dielectric anisotropy or volatility is appropriately adjusted.
較佳之含量之下限值係相對於本發明之液晶組成物之總量,例如於本發明之另一實施形態中為5%。又,於本發明之另一實施形態中為10%。進而,於本發明之另一實施形態中為15%。進而,於本發明之另一實施形態中為20%。進而,於本發明之另一實施形態中為25%。The lower limit of the preferred content is based on the total amount of the liquid crystal composition of the present invention, for example, 5% in another embodiment of the present invention. Further, in another embodiment of the present invention, it is 10%. Further, in another embodiment of the present invention, it is 15%. Further, in another embodiment of the present invention, it is 20%. Further, in another embodiment of the present invention, it is 25%.
進而,較佳之含量之上限值係相對於本發明之液晶組成物之總量,例如於本發明之另一實施形態中為45%。進而,於本發明之另一實施形態中為40%。進而,於本發明之另一實施形態中為35%。進而,於本發明之另一實施形態中為30%。進而,於本發明之另一實施形態中為25%。進而,於本發明之另一實施形態中為20%。Further, the upper limit of the preferable content is 45% with respect to the total amount of the liquid crystal composition of the present invention, for example, in another embodiment of the present invention. Further, in another embodiment of the present invention, it is 40%. Further, in another embodiment of the present invention, it is 35%. Further, in another embodiment of the present invention, it is 30%. Further, in another embodiment of the present invention, it is 25%. Further, in another embodiment of the present invention, it is 20%.
較佳之含量之範圍係相對於本發明之液晶組成物之總量,例如於本發明之一實施形態中為5~25%。或於本發明之另一實施形態中為10~30%。又,於本發明之另一實施形態中為15~35%。進而,於本發明之另一實施形態中為20~40%。進而,於本發明之另一實施形態中為25~45%。The preferred content range is from 5 to 25%, based on the total amount of the liquid crystal composition of the present invention, for example, in one embodiment of the present invention. Or in another embodiment of the present invention, it is 10 to 30%. Further, in another embodiment of the present invention, it is 15 to 35%. Further, in another embodiment of the present invention, it is 20 to 40%. Further, in another embodiment of the present invention, it is 25 to 45%.
於必需為較低地保持本發明之液晶組成物之黏度,且響應速度較快之液晶組成物之情形時,較佳為上述下限值較高且上限值較高。進而,於必需為較高地保持本發明之液晶組成物之Tni ,且溫度穩定性良好之液晶組成物之情形時,較佳為上述下限值較高且上限值較高。又,於為了較低地保持驅動電壓而欲增大介電各向異性時,較佳為降低上述下限值, 且使上限值較低。In the case where it is necessary to maintain the viscosity of the liquid crystal composition of the present invention at a low level and the liquid crystal composition has a fast response speed, it is preferable that the lower limit value is higher and the upper limit value is higher. Further, in the case where it is necessary to maintain a liquid crystal composition having a T ni of the liquid crystal composition of the present invention and having a good temperature stability, it is preferred that the lower limit value is higher and the upper limit value is higher. Further, in order to increase the dielectric anisotropy in order to maintain the driving voltage at a low level, it is preferable to lower the above lower limit value and lower the upper limit value.
進而,通式(L)所表示之化合物較佳為選自通式(I)至通式(V)所表示之化合物群之化合物。Further, the compound represented by the formula (L) is preferably a compound selected from the group consisting of the compounds represented by the formulae (I) to (V).
(式中,R91 至R9a 分別獨立地表示碳原子數1至10之烷基、碳原子數1至10之烷氧基或碳原子數2至10之烯基,但於通式(I)中,R91 表示碳原子數3之烷基,R92 表示碳原子數2之烷基之化合物除外)(wherein R 91 to R 9a each independently represent an alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms or an alkenyl group having 2 to 10 carbon atoms, but in the formula (I) Wherein R 91 represents an alkyl group having 3 carbon atoms, and R 92 represents a compound having an alkyl group having 2 carbon atoms;
於含有選自通式(I)至通式(V)所表示之化合物群之化合物之情形時,較佳為含有1種~10種,尤佳為含有1種~5種,亦較佳為含有2種以上之化合物,此情形時之含量較佳為5~40質量%,進而較佳為8~35質量%,尤佳為10~30質量%。In the case of containing a compound selected from the group consisting of the compounds represented by the general formulae (I) to (V), it is preferably one to ten, more preferably one to five, and more preferably In the case of containing two or more kinds of compounds, the content is preferably from 5 to 40% by mass, more preferably from 8 to 35% by mass, even more preferably from 10 to 30% by mass.
R91
至R9a
較佳為分別獨立地表示碳原子數1至10之烷基、碳原子數2至10之烯基或碳原子數2至10之烷氧基,更佳為表示碳原子數1至5之烷基、碳原子數2至5之烯基或碳原子數2至5之烷氧基,作為烯基,較佳為以下所記載之式(Alkenyl-1)~式(Alkenyl-4)所表示之結構,
(式中,對環結構係以右端鍵結)(wherein the ring structure is bonded to the right end)
但於本案發明之液晶組成物含有反應性單體之情形時,較佳為式(Alkenyl-2)及式(Alkenyl-4)所表示之結構,更佳為式(Alkenyl-2)所表示之結構。However, in the case where the liquid crystal composition of the invention of the present invention contains a reactive monomer, it is preferably a structure represented by the formula (Alkenyl-2) and the formula (Alkenyl-4), more preferably represented by the formula (Alkenyl-2). structure.
又,R91 及R92 可相同亦可不同,但較佳為表示不同之取代基。Further, R 91 and R 92 may be the same or different, but preferably represent different substituents.
進而,通式(I)所表示之化合物較佳為選自通式(I-a)所表示之化合物群之化合物。Further, the compound represented by the formula (I) is preferably a compound selected from the group of compounds represented by the formula (I-a).
(式中,R13 及14 分別獨立地表示碳原子數1~5之烷基,但成為R13 及R14 中表示碳原子數為3與2之烷基之組合之化合物除外)(wherein R 13 and 14 each independently represent an alkyl group having 1 to 5 carbon atoms, except for a compound in which R 13 and R 14 represent a combination of alkyl groups having 3 and 2 carbon atoms)
可組合之化合物之種類並無特別限制,根據低溫下之溶解性、轉移溫度、電性可靠性、雙折射率等所要求之性能而組合。使用之化合物之種類例如於本發明之一實施形態中為1種。或於本發明之另一實施形態中為2種。又,於本發明之另一實施形態中為3種以上。The type of the compound which can be combined is not particularly limited, and is combined according to the properties required at the low temperature such as solubility, transfer temperature, electrical reliability, and birefringence. The type of the compound to be used is, for example, one of the embodiments of the present invention. Or in another embodiment of the present invention, there are two types. Further, in another embodiment of the present invention, it is three or more.
於本發明之液晶組成物中,通式(I-a)所表示之化合物之含量必需根據低溫下之溶解性、轉移溫度、電性可靠性、雙折射率、製程適合性、滴加痕跡、留痕、介電各向異性等所要求之性能而適當調整。較佳之含量之下限值係相對於本發明之液晶組成物之總量,例如於本發明之一實施形態中為3%。或於本發明之另一實施形態中為8%。又,於本發明之另一實施形態中為15%。進而,於本發明之另一實施形態中為20%。In the liquid crystal composition of the present invention, the content of the compound represented by the formula (Ia) must be based on solubility at low temperature, transfer temperature, electrical reliability, birefringence, process suitability, traces of traces, and traces. The properties required for dielectric anisotropy and the like are appropriately adjusted. The lower limit of the content of the preferred content is, relative to the total amount of the liquid crystal composition of the present invention, for example, 3% in one embodiment of the present invention. Or in another embodiment of the present invention, it is 8%. Further, in another embodiment of the present invention, it is 15%. Further, in another embodiment of the present invention, it is 20%.
進而,較佳之含量之上限值係相對於本發明之液晶組成物之總量,例如於本發明之另一實施形態中為55%。進而,於本發明之另一實施形態中為45%。進而,於本發明之另一實施形態中為40%。進而,於本發明之另一實施形態中為30%。進而,於本發明之另一實施形態中為20%。進而,於本發明之另一實施形態中為15%。Further, the upper limit of the preferable content is 55% based on the total amount of the liquid crystal composition of the present invention, for example, in another embodiment of the present invention. Further, in another embodiment of the present invention, it is 45%. Further, in another embodiment of the present invention, it is 40%. Further, in another embodiment of the present invention, it is 30%. Further, in another embodiment of the present invention, it is 20%. Further, in another embodiment of the present invention, it is 15%.
較佳之含量之範圍係相對於本發明之液晶組成物之總量,例如於本發明之一實施形態中為3~15%。或於本發明之另一實施形態中為5~20%。又,於本發明之另一實施形態中為10~30%。進而,於本發明之另一實施形態中為15~40%。進而,於本發明之另一實施形態中為20~45%。式(I-a)所表示之化合物更具體而言較佳為以下所記載之化合物。The preferred content range is from 3 to 15% based on the total amount of the liquid crystal composition of the present invention, for example, in one embodiment of the present invention. Or in another embodiment of the present invention, it is 5 to 20%. Further, in another embodiment of the present invention, it is 10 to 30%. Further, in another embodiment of the present invention, it is 15 to 40%. Further, in another embodiment of the present invention, it is 20 to 45%. More specifically, the compound represented by the formula (I-a) is preferably a compound described below.
較佳為式(I-a-1)及式(I-a-2)所表示之化合物。於欲製作即便Tni 較高且高溫下亦可穩定地顯示之液晶顯示元件時,較佳為增加式(I-a-1)及式(I-a-2)所表示之化合物之含量。Preferred are the compounds represented by the formula (Ia-1) and the formula (Ia-2). It is preferable to increase the content of the compound represented by the formula (Ia-1) and the formula (Ia-2) when a liquid crystal display element which exhibits a high T Ni and can be stably displayed at a high temperature is desired.
進而,通式(I)所表示之化合物較佳為選自通式(I-b)所表示之化合物群之化合物。Further, the compound represented by the formula (I) is preferably a compound selected from the group of compounds represented by the formula (I-b).
(式中,R18 分別獨立地表示碳原子數1~5之烷基、碳原子數2~5之烯基或碳原子數1~5之烷氧基)(wherein R 18 each independently represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 5 carbon atoms)
可組合之化合物之種類並無特別限制,根據低溫下之溶解性、轉移溫度、電性可靠性、雙折射率等所要求之性能而組合。使用之化合物之種類例如於本發明之一實施形態中為1種。或於本發明之另一實施形態中為2種。又,於本發明之另一實施形態中為3種以上。The type of the compound which can be combined is not particularly limited, and is combined according to the properties required at the low temperature such as solubility, transfer temperature, electrical reliability, and birefringence. The type of the compound to be used is, for example, one of the embodiments of the present invention. Or in another embodiment of the present invention, there are two types. Further, in another embodiment of the present invention, it is three or more.
於本發明之液晶組成物中,通式(I-b)所表示之化合物之 含量必需根據低溫下之溶解性、轉移溫度、電性可靠性、雙折射率、製程適合性、滴加痕跡、留痕、介電各向異性等所要求之性能而適當調整。較佳之含量之下限值係相對於本發明之液晶組成物之總量,例如於本發明之一實施形態中為2%。或於本發明之另一實施形態中為3%。又,於本發明之另一實施形態中為5%。進而,於本發明之另一實施形態中為8%。進而,於本發明之另一實施形態中為11%。進而,於本發明之另一實施形態中為15%。進而,於本發明之另一實施形態中為20%。In the liquid crystal composition of the present invention, the compound represented by the formula (I-b) The content must be appropriately adjusted depending on the properties required for solubility at low temperature, transfer temperature, electrical reliability, birefringence, process suitability, dropping traces, retention marks, dielectric anisotropy, and the like. The lower limit of the content of the preferred content is, relative to the total amount of the liquid crystal composition of the present invention, for example, 2% in one embodiment of the present invention. Or in another embodiment of the present invention, it is 3%. Further, in another embodiment of the present invention, it is 5%. Further, in another embodiment of the present invention, it is 8%. Further, in another embodiment of the present invention, it is 11%. Further, in another embodiment of the present invention, it is 15%. Further, in another embodiment of the present invention, it is 20%.
進而,較佳之含量之上限值係相對於本發明之液晶組成物之總量,例如於本發明之另一實施形態中為40%。進而,於本發明之另一實施形態中為35%。進而,於本發明之另一實施形態中為30%。進而,於本發明之另一實施形態中為25%。進而,於本發明之另一實施形態中為20%。進而,於本發明之另一實施形態中為15%。Further, the upper limit of the preferable content is 40% with respect to the total amount of the liquid crystal composition of the present invention, for example, in another embodiment of the present invention. Further, in another embodiment of the present invention, it is 35%. Further, in another embodiment of the present invention, it is 30%. Further, in another embodiment of the present invention, it is 25%. Further, in another embodiment of the present invention, it is 20%. Further, in another embodiment of the present invention, it is 15%.
較佳之含量之範圍係相對於本發明之液晶組成物之總量,例如於本發明之一實施形態中為2~15%。或於本發明之另一實施形態中為4~15%。又,於本發明之另一實施形態中為8~15%。進而,於本發明之另一實施形態中為11~20%。進而,於本發明之另一實施形態中為15~25%。進而,於本發明之另一實施形態中為20~30%。進而,於本發明之另一實施形態中為25~35%。進而,於本發明之另一實施形態中為30~40%。The preferred content range is from 2 to 15%, based on the total amount of the liquid crystal composition of the present invention, for example, in one embodiment of the present invention. Or in another embodiment of the present invention, it is 4 to 15%. Further, in another embodiment of the present invention, it is 8 to 15%. Further, in another embodiment of the present invention, it is 11 to 20%. Further, in another embodiment of the present invention, it is 15 to 25%. Further, in another embodiment of the present invention, it is 20 to 30%. Further, in another embodiment of the present invention, it is 25 to 35%. Further, in another embodiment of the present invention, it is 30 to 40%.
式(I-b)所表示之化合物更具體而言較佳為以下所記載之化合物。More specifically, the compound represented by the formula (I-b) is preferably a compound described below.
[化6]
較佳為式(I-b-2)或式(I-b-3)所表示之化合物,尤佳為式(I-b-3)所表示之化合物。The compound represented by the formula (I-b-2) or the formula (I-b-3) is preferred, and the compound represented by the formula (I-b-3) is particularly preferred.
進而,通式(I)所表示之化合物較佳為選自通式(I-c)所表示之化合物群之化合物。Further, the compound represented by the formula (I) is preferably a compound selected from the group of compounds represented by the formula (I-c).
(式中,R13 表示碳原子數1~5之烷基,R15 表示碳原子數1~4之烷氧基)(wherein R 13 represents an alkyl group having 1 to 5 carbon atoms, and R 15 represents an alkoxy group having 1 to 4 carbon atoms)
可組合之化合物之種類並無特別限制,根據低溫下之溶解性、轉移溫度、電性可靠性、雙折射率等所要求之性能而組合。使用之化合物之種類例如於本發明之一實施形態中為1種。或於本發明之另一實施形態中為2種。又,於本發明之另一實施形態中為3種以上。The type of the compound which can be combined is not particularly limited, and is combined according to the properties required at the low temperature such as solubility, transfer temperature, electrical reliability, and birefringence. The type of the compound to be used is, for example, one of the embodiments of the present invention. Or in another embodiment of the present invention, there are two types. Further, in another embodiment of the present invention, it is three or more.
於本發明之液晶組成物中,通式(I-c)所表示之化合物之含量必需根據低溫下之溶解性、轉移溫度、電性可靠性、雙折射率、製程適合性、滴加痕跡、留痕、介電各向異性等所要求之性能而適當調整。較佳之含量之下限值係相對於本發明之液晶組成物之總量,例如於本發明之一實施形態中為2%。或於本發明之另一實施形態中為4%。又,於本發明之另一實施形態中為6%。進而,於本發明之另一實施形態中為10%。In the liquid crystal composition of the present invention, the content of the compound represented by the formula (Ic) must be based on solubility at low temperature, transfer temperature, electrical reliability, birefringence, process suitability, traces of traces, and traces. The properties required for dielectric anisotropy and the like are appropriately adjusted. The lower limit of the content of the preferred content is, relative to the total amount of the liquid crystal composition of the present invention, for example, 2% in one embodiment of the present invention. Or in another embodiment of the present invention, it is 4%. Further, in another embodiment of the present invention, it is 6%. Further, in another embodiment of the present invention, it is 10%.
進而,較佳之含量之上限值係相對於本發明之液晶組成物之總量,例如於本發明之另一實施形態中為25%。進而,於本發明之另一實 施形態中為20%。進而,於本發明之另一實施形態中為15%。Further, the upper limit of the preferable content is the total amount of the liquid crystal composition of the present invention, for example, 25% in another embodiment of the present invention. Further, another embodiment of the present invention In the form of the application, it is 20%. Further, in another embodiment of the present invention, it is 15%.
較佳之含量之範圍係相對於本發明之液晶組成物之總量,例如於本發明之一實施形態中為2~15%。或於本發明之另一實施形態中為4~20%。又,於本發明之另一實施形態中為6~25%。The preferred content range is from 2 to 15%, based on the total amount of the liquid crystal composition of the present invention, for example, in one embodiment of the present invention. Or in another embodiment of the present invention, it is 4 to 20%. Further, in another embodiment of the present invention, it is 6 to 25%.
於重視低溫下之溶解性之情形時,若將含量設定得較多則效果較高,相反地,於重視響應速度之情形時,若將含量設定得較少則效果較高。進而,於改良滴加痕跡或留痕特性之情形時,較佳為將含量之範圍設定為中間。When the solubility in low temperature is emphasized, the effect is high if the content is set to be large, and conversely, when the response speed is emphasized, the effect is high if the content is set to be small. Further, in the case of improving the characteristics of the dropping or leaving marks, it is preferred to set the range of the content to the middle.
式(I-c)所表示之化合物更具體而言較佳為以下所記載之化合物。More specifically, the compound represented by the formula (I-c) is preferably a compound described below.
較佳為式(I-c-1)、式(I-c-2)或式(I-c-3)所表示之化合物。Preferred are compounds represented by the formula (I-c-1), the formula (I-c-2) or the formula (I-c-3).
本案發明之液晶組成物進而亦可含有具有與通式(I)所表示之化合物類似之結構之式(I-d-1)所表示之化合物。The liquid crystal composition of the present invention may further contain a compound represented by the formula (I-d-1) having a structure similar to the compound represented by the formula (I).
較佳為根據低溫下之溶解性、轉移溫度、電性可靠性、雙折射率等所要求之性能調整式(I-d-1)所表示之化合物之含量,較佳為相對於 本發明之液晶組成物之總量含有該化合物5質量%以上且32質量%以下,進而較佳為含有8質量%以上且32質量%以下,進而較佳為含有12質量%以上且32質量%以下,尤佳為含有15質量%以上且32質量%以下。It is preferred to adjust the content of the compound represented by the formula (I-d-1) according to the performance required for solubility at low temperature, transfer temperature, electrical reliability, birefringence, etc., preferably with respect to The total amount of the liquid crystal composition of the present invention is 5% by mass or more and 32% by mass or less, more preferably 8% by mass or more and 32% by mass or less, and further preferably 12% by mass or more and 32% by mass or less. In the following, it is particularly preferable to contain 15% by mass or more and 32% by mass or less.
進而,通式(I)所表示之化合物較佳為選自通式(I-e)所表示之化合物群之化合物。Further, the compound represented by the formula (I) is preferably a compound selected from the group of compounds represented by the formula (I-e).
(式中,R16 及R17 分別獨立地表示碳原子數2~5之烯基)(wherein R 16 and R 17 each independently represent an alkenyl group having 2 to 5 carbon atoms)
可組合之化合物之種類並無特別限制,但較佳為根據低溫下之溶解性、轉移溫度、電性可靠性、雙折射率等所要求之性能而組合1種至3種以上。通式(I-e)所表示之化合物之含量係根據低溫下之溶解性、轉移溫度、電性可靠性、雙折射率、製程適合性、滴加痕跡、留痕、介電各向異性等所要求之性能,相對於本發明之液晶組成物之總量較佳為5質量%以上,更佳為10質量%,更佳為15質量%以上,更佳為20質量%以上,更佳為25質量%以上,尤佳為30質量%以上。又,作為最大可含有之比率,較佳為50質量%以下,更佳為45質量%以下,尤佳為40質量%以下。The type of the compound which can be combined is not particularly limited, but it is preferably one to three or more kinds in combination with properties required for solubility at low temperature, transfer temperature, electrical reliability, and birefringence. The content of the compound represented by the formula (Ie) is required according to solubility at low temperature, transfer temperature, electrical reliability, birefringence, process suitability, dropping trace, retention mark, dielectric anisotropy, and the like. The performance is preferably 5% by mass or more, more preferably 10% by mass, still more preferably 15% by mass or more, still more preferably 20% by mass or more, and still more preferably 25% by mass based on the total amount of the liquid crystal composition of the present invention. More than %, especially preferably 30% by mass or more. Further, the ratio which can be contained at the maximum is preferably 50% by mass or less, more preferably 45% by mass or less, and still more preferably 40% by mass or less.
較佳之含量之範圍相對於本發明之液晶組成物之總量較佳為5質量%以上且25質量%以下,更佳為10質量%以上且30質量%以下,更佳為15質量%以上且35質量%以下,更佳為20質量%以上且40質量%以下,更佳為25質量%以上且45質量%以下。The range of the content of the liquid crystal composition of the present invention is preferably 5% by mass or more and 25% by mass or less, more preferably 10% by mass or more and 30% by mass or less, and still more preferably 15% by mass or more. 35 mass% or less, more preferably 20 mass% or more and 40 mass% or less, more preferably 25% by mass or more and 45% by mass or less.
進而,通式(I-e)所表示之化合物較佳為選自式(I-e-1)至式(I-e-10)所表示之化合物群之化合物,較佳為式(I-e-2)、式(I-e-4)及式(I-e-7)所表示之化合物。Further, the compound represented by the formula (Ie) is preferably a compound selected from the group consisting of the compound represented by the formula (Ie-1) to the formula (Ie-10), preferably a formula (Ie-2) or a formula (Ie). -4) and a compound represented by the formula (Ie-7).
進而,通式(II)所表示之化合物較佳為選自通式(II-a)所表示之化合物群之化合物。Further, the compound represented by the formula (II) is preferably a compound selected from the group of compounds represented by the formula (II-a).
(式中,R11 表示碳原子數1~5之烷基、碳原子數2~5之烯基或碳原子數1~4之烷氧基,R12 表示碳原子數1~5之烷基、碳原子數4~5之烯基或碳原子數1~4之烷氧基)(wherein R 11 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms; and R 12 represents an alkyl group having 1 to 5 carbon atoms; , an alkenyl group having 4 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms)
可組合之化合物之種類並無特別限制,根據低溫下之溶解性、轉移溫度、電性可靠性、雙折射率等所要求之性能而組合。使用之化合物之種類例如於本發明之一實施形態中為1種。或於本發明之另一實施形態中為2種。The type of the compound which can be combined is not particularly limited, and is combined according to the properties required at the low temperature such as solubility, transfer temperature, electrical reliability, and birefringence. The type of the compound to be used is, for example, one of the embodiments of the present invention. Or in another embodiment of the present invention, there are two types.
於本發明之液晶組成物中,通式(II-a)所表示之化合物之含量必需根據低溫下之溶解性、轉移溫度、電性可靠性、雙折射率、製程適合性、滴加痕跡、留痕、介電各向異性等所要求之性能而適當調整。較佳之含量之下限值係相對於本發明之液晶組成物之總量,例如於本發明之一實施形態中為1%。或於本發明之另一實施形態中為4%。又,於本發明之另一實施形態中為7%。進而,於本發明之另一實施形態中為12%。進而,於本發明之另一實施形態中為15%。進而,於本發明之另一實施形態中為20%。進而,於本發明之另一實施形態中為25%。進而,於本發明之另一實施形態中為30%。In the liquid crystal composition of the present invention, the content of the compound represented by the formula (II-a) must be based on solubility at low temperature, transfer temperature, electrical reliability, birefringence, process suitability, traceability, The properties required for leaving marks, dielectric anisotropy, and the like are appropriately adjusted. The lower limit of the content of the preferred content is, relative to the total amount of the liquid crystal composition of the present invention, for example, 1% in one embodiment of the present invention. Or in another embodiment of the present invention, it is 4%. Further, in another embodiment of the present invention, it is 7%. Further, in another embodiment of the present invention, it is 12%. Further, in another embodiment of the present invention, it is 15%. Further, in another embodiment of the present invention, it is 20%. Further, in another embodiment of the present invention, it is 25%. Further, in another embodiment of the present invention, it is 30%.
進而,較佳之含量之上限值係相對於本發明之液晶組成物之總量,例如於本發明之另一實施形態中為40%。進而,於本發明之另一實施形態中為35%。進而,於本發明之另一實施形態中為30%。進而,於本發明之另一實施形態中為20%。進而,於本發明之另一實施形態中為15%。進而,於本發明之另一實施形態中為10%。進而,於本發明之另一實施形態中為8%。Further, the upper limit of the preferable content is 40% with respect to the total amount of the liquid crystal composition of the present invention, for example, in another embodiment of the present invention. Further, in another embodiment of the present invention, it is 35%. Further, in another embodiment of the present invention, it is 30%. Further, in another embodiment of the present invention, it is 20%. Further, in another embodiment of the present invention, it is 15%. Further, in another embodiment of the present invention, it is 10%. Further, in another embodiment of the present invention, it is 8%.
較佳之含量之範圍係相對於本發明之液晶組成物之總量,例如於本發明之一實施形態中為3~8%。或於本發明之另一實施形態中為5~13%。又,於本發明之另一實施形態中為7~18%。進而,於本發明之另一實施形態中為11~20%。進而,於本發明之另一實施形態中為13~25%。進而,於本發明之另一實施形態中為15~30%。The preferred content range is from 3 to 8% in one embodiment of the present invention, relative to the total amount of the liquid crystal composition of the present invention. Or in another embodiment of the present invention, it is 5 to 13%. Further, in another embodiment of the present invention, it is 7 to 18%. Further, in another embodiment of the present invention, it is 11 to 20%. Further, in another embodiment of the present invention, it is 13 to 25%. Further, in another embodiment of the present invention, it is 15 to 30%.
於重視低溫下之溶解性之情形時,若將含量設定得較多則效 果較高,相反地,於重視響應速度之情形時,若將含量設定得較少則效果較高。進而,於改良滴加痕跡或留痕特性之情形時,較佳為將含量之範圍設定為中間。When considering the solubility at low temperatures, if the content is set to be more effective The result is higher. Conversely, when the response speed is emphasized, the effect is higher if the content is set to be smaller. Further, in the case of improving the characteristics of the dropping or leaving marks, it is preferred to set the range of the content to the middle.
式(II-a)所表示之化合物更具體而言較佳為以下所記載之化合物。More specifically, the compound represented by the formula (II-a) is preferably a compound described below.
進而,較佳為式(II-a-1)、式(II-a-2)、式(II-a-3)或式(II-a-6) 所表示之化合物。Further, it is preferably a formula (II-a-1), a formula (II-a-2), a formula (II-a-3) or a formula (II-a-6). The compound represented.
進而,本發明之液晶組成物亦可含有選自具有與通式(II)所表示之化合物類似之結構之通式(II-b)所表示之化合物群之化合物。Further, the liquid crystal composition of the present invention may further contain a compound selected from the group consisting of compounds represented by the formula (II-b) having a structure similar to the compound represented by the formula (II).
(式中,R11 表示碳原子數1~5之烷基、碳原子數2~5之烯基或碳原子數1~4之烷氧基,R12 表示碳原子數1~5之烷基、碳原子數4~5之烯基或碳原子數1~4之烷氧基)(wherein R 11 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms; and R 12 represents an alkyl group having 1 to 5 carbon atoms; , an alkenyl group having 4 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms)
較佳為相對於本發明之液晶組成物之總量含有通式(II-b)所表示之化合物1質量%以上且6質量%以下,更佳為3質量%以上且8質量%以下,更佳為6質量%以上且15質量%以下,更佳為8質量%以上且20質量%以下,更佳為10質量%以上且25質量%以下。It is preferable that the compound represented by the formula (II-b) is contained in an amount of 1% by mass or more and 6% by mass or less, more preferably 3% by mass or more and 8% by mass or less, based on the total amount of the liquid crystal composition of the present invention. It is preferably 6% by mass or more and 15% by mass or less, more preferably 8% by mass or more and 20% by mass or less, and still more preferably 10% by mass or more and 25% by mass or less.
進而,通式(II-b)所表示之化合物較佳為式(II-b-1)所表示之化合物。Further, the compound represented by the formula (II-b) is preferably a compound represented by the formula (II-b-1).
進而,通式(III)所表示之化合物較佳為選自通式(III-a)所表示之化合物群之化合物。Further, the compound represented by the formula (III) is preferably a compound selected from the group of compounds represented by the formula (III-a).
(式中,R11 表示碳原子數1~5之烷基、碳原子數2~5之烯基或碳原子數1~4之烷氧基,R12 表示碳原子數1~5之烷基、碳原子數4~5之烯基或碳原子數1~4之烷氧基)(wherein R 11 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms; and R 12 represents an alkyl group having 1 to 5 carbon atoms; , an alkenyl group having 4 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms)
可組合之化合物之種類並無特別限制,根據低溫下之溶解 性、轉移溫度、電性可靠性、雙折射率等所要求之性能而組合。使用之化合物之種類例如於本發明之一實施形態中為1種。或於本發明之另一實施形態中為2種以上。The types of compounds that can be combined are not particularly limited, and are dissolved according to low temperature. Combination of properties required for properties such as properties, transfer temperature, electrical reliability, and birefringence. The type of the compound to be used is, for example, one of the embodiments of the present invention. Or another embodiment of this invention is two or more types.
於本發明之液晶組成物中,通式(III-a)所表示之化合物之含量必需根據低溫下之溶解性、轉移溫度、電性可靠性、雙折射率、製程適合性、滴加痕跡、留痕、介電各向異性等所要求之性能而適當調整。較佳之含量之下限值係相對於本發明之液晶組成物之總量,例如於本發明之一實施形態中為3%。或於本發明之另一實施形態中為5%。又,於本發明之另一實施形態中為8%。進而,於本發明之另一實施形態中為10%。進而,於本發明之另一實施形態中為12%。進而,於本發明之另一實施形態中為15%。進而,於本發明之另一實施形態中為20%。In the liquid crystal composition of the present invention, the content of the compound represented by the formula (III-a) must be based on solubility at low temperature, transfer temperature, electrical reliability, birefringence, process suitability, traceability, The properties required for leaving marks, dielectric anisotropy, and the like are appropriately adjusted. The lower limit of the content of the preferred content is, relative to the total amount of the liquid crystal composition of the present invention, for example, 3% in one embodiment of the present invention. Or in another embodiment of the present invention, it is 5%. Further, in another embodiment of the present invention, it is 8%. Further, in another embodiment of the present invention, it is 10%. Further, in another embodiment of the present invention, it is 12%. Further, in another embodiment of the present invention, it is 15%. Further, in another embodiment of the present invention, it is 20%.
進而,較佳之含量之上限值係相對於本發明之液晶組成物之總量,例如於本發明之另一實施形態中為35%。進而,於本發明之另一實施形態中為30%。Further, the upper limit of the preferable content is based on the total amount of the liquid crystal composition of the present invention, for example, 35% in another embodiment of the present invention. Further, in another embodiment of the present invention, it is 30%.
較佳之含量之範圍係相對於本發明之液晶組成物之總量,例如於本發明之一實施形態中為3~15%。或於本發明之另一實施形態中為5~15%。進而,於本發明之另一實施形態中為12~25%。進而,於本發明之另一實施形態中為15~30%。進而,於本發明之另一實施形態中為20~35%。The preferred content range is from 3 to 15% based on the total amount of the liquid crystal composition of the present invention, for example, in one embodiment of the present invention. Or in another embodiment of the present invention, it is 5 to 15%. Further, in another embodiment of the present invention, it is 12 to 25%. Further, in another embodiment of the present invention, it is 15 to 30%. Further, in another embodiment of the present invention, it is 20 to 35%.
於獲得較高之雙折射率之情形時,若將含量設定得較多則效果較高,相反地,於重視較高之Tni 之情形時,若將含量設定得較少則效果較高。進而,於改良滴加痕跡或留痕特性之情形時,較佳為將含量之範圍設定為中間。In the case of obtaining a higher birefringence, the effect is higher if the content is set to be larger, and conversely, when the higher Tni is emphasized, the effect is higher if the content is set to be smaller. Further, in the case of improving the characteristics of the dropping or leaving marks, it is preferred to set the range of the content to the middle.
式(III-a)所表示之化合物更具體而言較佳為以下所記載之化合物。More specifically, the compound represented by the formula (III-a) is preferably a compound described below.
[化9]
較佳為式(III-a-2)、式(III-a-3)或式(III-a-4)所表示之化合物。Preferred are compounds represented by formula (III-a-2), formula (III-a-3) or formula (III-a-4).
進而,可含有選自具有與通式(III)所表示之化合物類似之結構之通式(III-b)所表示之化合物群之化合物。Further, a compound selected from the group consisting of compounds represented by the formula (III-b) having a structure similar to the compound represented by the formula (III) may be contained.
(式中,R11 表示碳原子數1~5之烷基、碳原子數2~5之烯基或碳原子數1~4之烷氧基,R12 表示碳原子數1~5之烷基、碳原子數4~5之烯基或碳原子數1~4之烷氧基,X11 及X12 分別獨立地表示氟原子或氫原子,X11 或X12 中之任一者均為氟原子)(wherein R 11 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms; and R 12 represents an alkyl group having 1 to 5 carbon atoms; , an alkenyl group having 4 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms, and X 11 and X 12 each independently represent a fluorine atom or a hydrogen atom, and any of X 11 or X 12 is fluorine. atom)
較佳為通式(III-b)所表示之化合物相對於本發明之液晶組成物之總量為2質量%以上,更佳為4質量%,更佳為6質量%以上,更佳為9質量%以上,更佳為12質量%以上。The total amount of the compound represented by the formula (III-b) relative to the liquid crystal composition of the present invention is preferably 2% by mass or more, more preferably 4% by mass, still more preferably 6% by mass or more, and still more preferably 9 or more. The mass% or more is more preferably 12% by mass or more.
較佳之含量之範圍相對於本發明之液晶組成物之總量較佳為2質量%以上且15質量%以下,更佳為5質量%以上且18質量%以下,更佳為9質量%以上且25質量%以下。The range of the content of the liquid crystal composition of the present invention is preferably 2% by mass or more and 15% by mass or less, more preferably 5% by mass or more and 18% by mass or less, and still more preferably 9% by mass or more. 25 mass% or less.
進而,通式(III-b)所表示之化合物較佳為式(III-b-1)所 表示之化合物。Further, the compound represented by the formula (III-b) is preferably a compound of the formula (III-b-1) Expressed as a compound.
進而,通式(IV)所表示之化合物例如較佳為選自通式(IV-a)所表示之化合物群之化合物。Further, the compound represented by the formula (IV) is preferably, for example, a compound selected from the group of compounds represented by the formula (IV-a).
(R25 表示碳原子數1~5之烷基,R24 表示碳原子數1~5之烷基)(R 25 represents an alkyl group having 1 to 5 carbon atoms, and R 24 represents an alkyl group having 1 to 5 carbon atoms)
可組合之化合物之種類並無特別限制,根據低溫下之溶解性、轉移溫度、電性可靠性、雙折射率等所要求之性能而組合。使用之化合物之種類例如於本發明之一實施形態中為1種。或於本發明之另一實施形態中為2種以上。The type of the compound which can be combined is not particularly limited, and is combined according to the properties required at the low temperature such as solubility, transfer temperature, electrical reliability, and birefringence. The type of the compound to be used is, for example, one of the embodiments of the present invention. Or another embodiment of this invention is two or more types.
於本發明之液晶組成物中,通式(IV-a)所表示之化合物之含量必需根據低溫下之溶解性、轉移溫度、電性可靠性、雙折射率、製程適合性、滴加痕跡、留痕、介電各向異性等所要求之性能而適當調整。較佳之含量之下限值係相對於本發明之液晶組成物之總量,例如於本發明之一實施形態中為3%。或於本發明之另一實施形態中為5%。又,於本發明之另一實施形態中為7%。進而,於本發明之另一實施形態中為10%。進而,於本發明之另一實施形態中為14%。In the liquid crystal composition of the present invention, the content of the compound represented by the formula (IV-a) must be based on solubility at low temperature, transfer temperature, electrical reliability, birefringence, process suitability, traceability, The properties required for leaving marks, dielectric anisotropy, and the like are appropriately adjusted. The lower limit of the content of the preferred content is, relative to the total amount of the liquid crystal composition of the present invention, for example, 3% in one embodiment of the present invention. Or in another embodiment of the present invention, it is 5%. Further, in another embodiment of the present invention, it is 7%. Further, in another embodiment of the present invention, it is 10%. Further, in another embodiment of the present invention, it is 14%.
進而,較佳之含量之上限值係相對於本發明之液晶組成物之總量,例如於本發明之另一實施形態中為20%。進而,於本發明之另一實施形態中為15%。進而,於本發明之另一實施形態中為10%。進而,於本發明之另一實施形態中為5%。Further, the upper limit of the preferable content is 20% with respect to the total amount of the liquid crystal composition of the present invention, for example, in another embodiment of the present invention. Further, in another embodiment of the present invention, it is 15%. Further, in another embodiment of the present invention, it is 10%. Further, in another embodiment of the present invention, it is 5%.
較佳之含量之範圍係相對於本發明之液晶組成物之總量,例如於本發明之一實施形態中為3~15%。或於本發明之另一實施形態中為5~15%。又,於本發明之另一實施形態中為7~15%。進而,於本發明之另一實施形態中為10~20%。The preferred content range is from 3 to 15% based on the total amount of the liquid crystal composition of the present invention, for example, in one embodiment of the present invention. Or in another embodiment of the present invention, it is 5 to 15%. Further, in another embodiment of the present invention, it is 7 to 15%. Further, in another embodiment of the present invention, it is 10 to 20%.
式(IV-a)所表示之化合物更具體而言較佳為以下所記載之化合物。More specifically, the compound represented by the formula (IV-a) is preferably a compound described below.
較佳為式(IV-a-2)所表示之化合物。Preferred is a compound represented by the formula (IV-a-2).
進而,通式(IV)所表示之化合物例如較佳為選自通式(IV-b)所表示之化合物群之化合物。Further, the compound represented by the formula (IV) is preferably, for example, a compound selected from the group of compounds represented by the formula (IV-b).
(R25 表示碳原子數1~5之烷基,R26 表示碳原子數1~4之烷氧基)(R 25 represents an alkyl group having 1 to 5 carbon atoms, and R 26 represents an alkoxy group having 1 to 4 carbon atoms)
可組合之化合物之種類並無特別限制,但較佳為根據低溫下之溶解性、轉移溫度、電性可靠性、雙折射率等所要求之性能而含有該等化合物中之1種~3種。The type of the compound which can be combined is not particularly limited, but it is preferred to contain one to three kinds of these compounds depending on the properties required for solubility at low temperature, transfer temperature, electrical reliability, and birefringence. .
通式(IV-b)所表示之化合物之含量較佳為根據低溫下之溶解性、轉移溫度、電性可靠性、雙折射率等所要求之性能而調整,較佳為1質量%以上,更佳為4質量%以上,進而較佳為8質量%以上。又,作為最大可含有之比率,較佳為15質量%以下,更佳為10質量%以下,進而較佳為8質量%以下。The content of the compound represented by the formula (IV-b) is preferably adjusted according to the properties required for solubility at low temperature, transfer temperature, electrical reliability, and birefringence, and is preferably 1% by mass or more. It is more preferably 4% by mass or more, and still more preferably 8% by mass or more. Moreover, the ratio which can be contained at the maximum is preferably 15% by mass or less, more preferably 10% by mass or less, and still more preferably 8% by mass or less.
較佳之含量之範圍較佳為1質量%以上且10質量%以下,更 佳為4質量%以上且12質量%以下,進而較佳為8質量%以上且15質量%以下。The preferred content range is preferably 1% by mass or more and 10% by mass or less, more preferably It is preferably 4% by mass or more and 12% by mass or less, and more preferably 8% by mass or more and 15% by mass or less.
進而,通式(IV-b)所表示之化合物例如亦較佳為式(IV-b-1)至式(IV-b-4)所表示之化合物,其中尤佳為式(IV-b-3)所表示之化合物。Further, the compound represented by the formula (IV-b) is, for example, preferably a compound represented by the formula (IV-b-1) to the formula (IV-b-4), and particularly preferably a formula (IV-b-). 3) The compound represented.
進而,通式(IV)所表示之化合物例如亦可為選自通式(IV-c)所表示之化合物群之化合物。Further, the compound represented by the formula (IV) may be, for example, a compound selected from the group of compounds represented by the formula (IV-c).
(R23 表示碳原子數2~5之烯基,R24 表示碳原子數1~5之烷基)(R 23 represents an alkenyl group having 2 to 5 carbon atoms, and R 24 represents an alkyl group having 1 to 5 carbon atoms)
可組合之化合物之種類並無特別限制,根據低溫下之溶解性、轉移溫度、電性可靠性、雙折射率等所要求之性能而組合。使用之化合物之種類例如於本發明之一實施形態中為1種。或於本發明之另一實施形態中為2種以上。The type of the compound which can be combined is not particularly limited, and is combined according to the properties required at the low temperature such as solubility, transfer temperature, electrical reliability, and birefringence. The type of the compound to be used is, for example, one of the embodiments of the present invention. Or another embodiment of this invention is two or more types.
於本發明之液晶組成物中,通式(IV-c)所表示之化合物之含量必需根據低溫下之溶解性、轉移溫度、電性可靠性、雙折射率、製程適合性、滴加痕跡、留痕、介電各向異性等所要求之性能而適當調整。較 佳之含量之下限值係相對於本發明之液晶組成物之總量,例如於本發明之一實施形態中為3%。或於本發明之另一實施形態中為5%。又,於本發明之另一實施形態中為5%。進而,於本發明之另一實施形態中為10%。進而,於本發明之另一實施形態中為14%。進而,於本發明之另一實施形態中為16%。In the liquid crystal composition of the present invention, the content of the compound represented by the formula (IV-c) must be based on solubility at low temperature, transfer temperature, electrical reliability, birefringence, process suitability, traceability, The properties required for leaving marks, dielectric anisotropy, and the like are appropriately adjusted. More The lower limit of the content is preferably 3% based on the total amount of the liquid crystal composition of the present invention, for example, in an embodiment of the present invention. Or in another embodiment of the present invention, it is 5%. Further, in another embodiment of the present invention, it is 5%. Further, in another embodiment of the present invention, it is 10%. Further, in another embodiment of the present invention, it is 14%. Further, in another embodiment of the present invention, it is 16%.
進而,較佳之含量之上限值係相對於本發明之液晶組成物之總量,例如於本發明之另一實施形態中為20%。進而,於本發明之另一實施形態中為15%。進而,於本發明之另一實施形態中為10%。進而,於本發明之另一實施形態中為5%。Further, the upper limit of the preferable content is 20% with respect to the total amount of the liquid crystal composition of the present invention, for example, in another embodiment of the present invention. Further, in another embodiment of the present invention, it is 15%. Further, in another embodiment of the present invention, it is 10%. Further, in another embodiment of the present invention, it is 5%.
較佳之含量之範圍係相對於本發明之液晶組成物之總量,例如於本發明之一實施形態中為3~12%。或於本發明之另一實施形態中為5~12%。又,於本發明之另一實施形態中為7~15%。進而,於本發明之另一實施形態中為10~20%。The preferred content range is from 3 to 12%, based on the total amount of the liquid crystal composition of the present invention, for example, in one embodiment of the present invention. Or in another embodiment of the present invention, it is 5 to 12%. Further, in another embodiment of the present invention, it is 7 to 15%. Further, in another embodiment of the present invention, it is 10 to 20%.
進而,通式(IV-c)所表示之化合物例如較佳為式(IV-c-1)至式(IV-c-3)所表示之化合物。Further, the compound represented by the formula (IV-c) is preferably, for example, a compound represented by the formula (IV-c-1) to the formula (IV-c-3).
根據低溫下之溶解性、轉移溫度、電性可靠性、雙折射率等所要求之性能可含有式(IV-c-1)所表示之化合物,亦可含有式(IV-c-2)所表示之化合物,亦可含有式(IV-c-1)所表示之化合物與式(IV-c-2)所表示之化合物之兩者,亦可全部含有式(IV-c-1)至式(IV-c-3)所表示之 化合物。式(IV-c-1)或式(IV-c-2)所表示之化合物之含量相對於本發明之液晶組成物之總量較佳為3質量%,更佳為5質量%以上,更佳為7質量%以上,更佳為9質量%以上,更佳為11質量%以上。又,作為最大可含有之比率,較佳為20質量%以下,更佳為15質量%以下,進而較佳為13質量%以下。The compound represented by the formula (IV-c-1) may be contained according to the properties required for solubility at low temperature, transfer temperature, electrical reliability, birefringence, etc., and may also contain the formula (IV-c-2). The compound represented by the formula (IV-c-1) and the compound represented by the formula (IV-c-2) may further contain the formula (IV-c-1) to the formula. Expressed by (IV-c-3) Compound. The content of the compound represented by the formula (IV-c-1) or the formula (IV-c-2) is preferably 3% by mass, more preferably 5% by mass or more, based on the total amount of the liquid crystal composition of the present invention. The amount is preferably 7% by mass or more, more preferably 9% by mass or more, and still more preferably 11% by mass or more. Moreover, the ratio which can be contained the maximum is preferably 20% by mass or less, more preferably 15% by mass or less, and still more preferably 13% by mass or less.
進而,較佳之含量之範圍較佳為3質量%以上且15質量%以下,更佳為5質量%以上且15質量%以下,更佳為7質量%以上且15質量%以下,更佳為9質量%以上且18質量%以下。Further, the preferred content range is preferably 3% by mass or more and 15% by mass or less, more preferably 5% by mass or more and 15% by mass or less, still more preferably 7% by mass or more and 15% by mass or less, and still more preferably 9 or less. The mass% or more and 18 mass% or less.
又,式(IV-c-2)所表示之化合物之含量相對於本發明之液晶組成物之總量較佳為3質量%,更佳為5質量%以上,進而較佳為8質量%以上,進而較佳為10質量%以上。又,作為最大可含有之比率,較佳為20質量%以下,更佳為15質量%以下,進而較佳為12質量%以下。Further, the content of the compound represented by the formula (IV-c-2) is preferably 3% by mass, more preferably 5% by mass or more, and still more preferably 8% by mass or more based on the total amount of the liquid crystal composition of the present invention. Further, it is preferably 10% by mass or more. Moreover, the ratio which can be contained at the maximum is preferably 20% by mass or less, more preferably 15% by mass or less, and still more preferably 12% by mass or less.
於含有式(IV-c-1)所表示之化合物與式(IV-c-2)所表示之化合物之兩者之情形時,兩者之化合物之合計相對於本發明之液晶組成物之總量較佳為8質量%以上,進而較佳為13質量%以上。又,作為最大可含有之比率,較佳為25質量%以下,更佳為20質量%以下,進而較佳為15質量%以下。In the case where both the compound represented by the formula (IV-c-1) and the compound represented by the formula (IV-c-2) are contained, the total of the compounds of the two is relative to the total of the liquid crystal composition of the present invention. The amount is preferably 8% by mass or more, and more preferably 13% by mass or more. Moreover, the ratio which can be contained the maximum is preferably 25% by mass or less, more preferably 20% by mass or less, and still more preferably 15% by mass or less.
進而,較佳之含量之範圍較佳為5質量%以上且20質量%以下,更佳為8質量%以上且18質量%以下,進而較佳為10質量%以上且18質量%以下。Further, the range of the preferable content is preferably 5% by mass or more and 20% by mass or less, more preferably 8% by mass or more and 18% by mass or less, still more preferably 10% by mass or more and 18% by mass or less.
進而,通式(V)所表示之化合物較佳為選自通式(V-a)所表示之化合物群之化合物。Further, the compound represented by the formula (V) is preferably a compound selected from the group of compounds represented by the formula (V-a).
(R31 表示碳原子數1~5之烷基,R32 表示碳原子數1~5之 烷基或碳原子數1~4之烷氧基)(R 31 represents an alkyl group having 1 to 5 carbon atoms, and R 32 represents an alkyl group having 1 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms)
式(V-a)所表示之化合物更具體而言較佳為以下所記載之化合物。More specifically, the compound represented by the formula (V-a) is preferably a compound described below.
進而,通式(V)所表示之化合物較佳為選自通式(V-b)所表示之化合物群之化合物。Further, the compound represented by the formula (V) is preferably a compound selected from the group of compounds represented by the formula (V-b).
(R33 表示碳原子數2~5之烯基,R32 分別獨立地表示碳原子數1~5之烷基或碳原子數1~4之烷氧基)(R 33 represents an alkenyl group having 2 to 5 carbon atoms, and R 32 each independently represents an alkyl group having 1 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms)
較佳為根據低溫下之溶解性、轉移溫度、電性可靠性、雙折射率等所要求之性能調整含量,較佳為4質量%以上,更佳為6質量%以上,進而較佳為10質量%以上。又,作為最大可含有之比率,較佳為20質量%以下,更佳為15質量%以下,進而較佳為10質量%以下。It is preferable to adjust the content according to the performance required for solubility at a low temperature, transfer temperature, electrical reliability, birefringence, etc., preferably 4% by mass or more, more preferably 6% by mass or more, and still more preferably 10%. More than % by mass. Moreover, the ratio which can be contained at the maximum is preferably 20% by mass or less, more preferably 15% by mass or less, and still more preferably 10% by mass or less.
進而,含量之較佳範圍較佳為4質量%以上且13質量%以下,更佳為6質量%以上且13質量%以下,進而較佳為8質量%以上且13質量%以下。Further, the preferred range of the content is preferably 4% by mass or more and 13% by mass or less, more preferably 6% by mass or more and 13% by mass or less, still more preferably 8% by mass or more and 13% by mass or less.
通式(V-b)所表示之化合物例如較佳為式(V-b-1)或式(V-b-2)所表示之化合物。The compound represented by the formula (V-b) is preferably, for example, a compound represented by the formula (V-b-1) or the formula (V-b-2).
進而,通式(V)所表示之化合物較佳為選自通式(V-c)所表示之化合物群之化合物。Further, the compound represented by the formula (V) is preferably a compound selected from the group of compounds represented by the formula (V-c).
(R31 表示碳原子數1~5之烷基,R34 表示碳原子數1~4之烷氧基)(R 31 represents an alkyl group having 1 to 5 carbon atoms, and R 34 represents an alkoxy group having 1 to 4 carbon atoms)
通式(V-c)所表示之化合物之含量較佳為根據低溫下之溶解性、轉移溫度、電性可靠性、雙折射率等所要求之性能而調整,較佳為4質量%以上,更佳為6質量%以上,進而較佳為10質量%以上。又,作為最大可含有之比率,較佳為18質量%以下,更佳為13質量%以下,進而較佳為8質量%以下。The content of the compound represented by the formula (Vc) is preferably adjusted according to the required properties such as solubility at low temperature, transfer temperature, electrical reliability, and birefringence, and is preferably 4% by mass or more. It is 6 mass% or more, More preferably, it is 10 mass% or more. Moreover, the ratio which can be contained the maximum is preferably 18% by mass or less, more preferably 13% by mass or less, and still more preferably 8% by mass or less.
進而,含量之較佳範圍較佳為4質量%以上且10質量%以下,更佳為6質量%以上且10質量%以下。Further, the preferred range of the content is preferably 4% by mass or more and 10% by mass or less, more preferably 6% by mass or more and 10% by mass or less.
進而,通式(V-c)所表示之化合物例如較佳為選自式(V-c-1)至式(V-c-3)所表示之化合物群之化合物,尤佳為式(V-c-3)所表示之化合物。Further, the compound represented by the formula (Vc) is, for example, preferably a compound selected from the group consisting of the compound represented by the formula (Vc-1) to the formula (Vc-3), and more preferably represented by the formula (Vc-3). Compound.
進而,通式(L)所表示之化合物例如較佳為選自通式(VI) 所表示之化合物群之化合物。Further, the compound represented by the formula (L) is preferably selected, for example, from the formula (VI). A compound of the compound group indicated.
(R21 及R22 分別獨立地表示碳原子數2~5之烯基或碳原子數1~5之烷基或碳原子數1~4之烷氧基)(R 21 and R 22 each independently represent an alkenyl group having 2 to 5 carbon atoms or an alkyl group having 1 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms)
通式(VI)所表示之化合物之含量較佳為根據低溫下之溶解性、轉移溫度、電性可靠性、雙折射率等所要求之性能而調整,較佳為4質量%以上,更佳為8質量%以上,進而較佳為12質量%以上。又,作為最大可含有之比率,較佳為18質量%以下,更佳為12質量%以下,進而較佳為8質量%以下。The content of the compound represented by the formula (VI) is preferably adjusted according to the properties required for solubility at low temperature, transfer temperature, electrical reliability, birefringence, etc., preferably 4% by mass or more, more preferably It is 8% by mass or more, and more preferably 12% by mass or more. Moreover, the ratio which can be contained at the maximum is preferably 18% by mass or less, more preferably 12% by mass or less, still more preferably 8% by mass or less.
進而,含量之較佳範圍較佳為4質量%以上且14質量%以下,更佳為8質量%以上且14質量%以下。Further, the preferred range of the content is preferably 4% by mass or more and 14% by mass or less, more preferably 8% by mass or more and 14% by mass or less.
進而,通式(VI)所表示之化合物例如較佳為式(VI-1)及式(VI-2)所表示之化合物。Further, the compound represented by the formula (VI) is preferably a compound represented by the formula (VI-1) and the formula (VI-2), for example.
通式(VI)所表示之化合物之含量較佳為根據低溫下之溶解性、轉移溫度、電性可靠性、雙折射率等所要求之性能而調整,較佳為4質量%以上,更佳為8質量%以上,進而較佳為12質量%以上。又,作為最大可含有之比率,較佳為18質量%以下,進而較佳為14質量%以下。The content of the compound represented by the formula (VI) is preferably adjusted according to the properties required for solubility at low temperature, transfer temperature, electrical reliability, birefringence, etc., preferably 4% by mass or more, more preferably It is 8% by mass or more, and more preferably 12% by mass or more. Further, the ratio which can be contained at the maximum is preferably 18% by mass or less, and more preferably 14% by mass or less.
進而,含量之較佳範圍較佳為4質量%以上且14質量%以下,更佳為8質量%以上且14質量%以下。Further, the preferred range of the content is preferably 4% by mass or more and 14% by mass or less, more preferably 8% by mass or more and 14% by mass or less.
進而,通式(L)所表示之化合物例如較佳為選自通式(VII) 所表示之化合物群之化合物。Further, the compound represented by the formula (L) is preferably selected, for example, from the formula (VII). A compound of the compound group indicated.
(R21 及R22 分別獨立地表示碳原子數2~5之烯基、碳原子數1~5之烷基或碳原子數1~4之烷氧基)(R 21 and R 22 each independently represent an alkenyl group having 2 to 5 carbon atoms, an alkyl group having 1 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms)
可僅含有該等化合物中之1種,亦可含有2種以上,但較佳為根據所要求之性能而適當組合。可組合之化合物之種類並無特別限制,但較佳為根據低溫下之溶解性、轉移溫度、電性可靠性、雙折射率等所要求之性能而含有該等化合物中之1種~2種,尤佳為含有1種~3種。It may contain only one of these compounds, or may contain two or more of them, and it is preferable to mix suitably according to the required performance. The type of the compound which can be combined is not particularly limited, but it is preferably one or two kinds of these compounds depending on the properties required for solubility at low temperature, transfer temperature, electrical reliability, and birefringence. It is especially suitable for one to three species.
通式(VII)所表示之化合物之含量相對於本發明之液晶組成物之總量較佳為1質量%以上,更佳為2質量%以上,更佳為3質量%以上,更佳為4質量%以上,尤佳為5質量%以上。又,作為最大可含有之比率,較佳為10質量%以下,更佳為8質量%以下。The content of the compound represented by the formula (VII) is preferably 1% by mass or more, more preferably 2% by mass or more, still more preferably 3% by mass or more, and still more preferably 4% based on the total amount of the liquid crystal composition of the present invention. The mass% or more is particularly preferably 5% by mass or more. Further, the ratio which can be contained at the maximum is preferably 10% by mass or less, and more preferably 8% by mass or less.
進而,含量之較佳範圍較佳為1質量%以上且7質量%以下,更佳為2質量%以上且7質量%以下。Further, the preferred range of the content is preferably 1% by mass or more and 7% by mass or less, more preferably 2% by mass or more and 7% by mass or less.
進而,通式(VII)所表示之化合物例如較佳為式(VII-1)至式(VII-5)所表示之化合物,尤佳為式(VII-2)或/及式(VII-5)所表示之化合物。Further, the compound represented by the formula (VII) is, for example, preferably a compound represented by the formula (VII-1) to the formula (VII-5), and more preferably a formula (VII-2) or/and a formula (VII-5). ) the compound represented.
[化3]
進而,通式(L)所表示之化合物較佳為選自通式(VIII)所表示之群之化合物。Further, the compound represented by the formula (L) is preferably a compound selected from the group represented by the formula (VIII).
(式中,R51 及R52 分別獨立地表示碳原子數1~5之烷基、碳原子數2~5之烯基或碳原子數1~4之烷氧基,A51 及A52 分別獨立地表示1,4-伸環己基或1,4-伸苯基,Q5 表示單鍵或-COO-,X51 及X52 分別獨立地表示氟原子或氫原子。不存在X51 及X52 同時為氟原子之情形)(wherein R 51 and R 52 each independently represent an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms; and A 51 and A 52 respectively Independently represents 1,4-cyclohexylene or 1,4-phenylene, Q 5 represents a single bond or -COO-, and X 51 and X 52 each independently represent a fluorine atom or a hydrogen atom. X 51 and X are absent. 52 is also a fluorine atom)
可組合之化合物之種類並無特別限制,根據低溫下之溶解性、轉移溫度、電性可靠性、雙折射率等所要求之性能而組合。使用之化合物之種類例如於本發明之一實施形態中為1種。或於本發明之另一實施形態中為2種。進而,於本發明之另一實施形態中為3種。進而,於本發明之另一實施形態中為4種。The type of the compound which can be combined is not particularly limited, and is combined according to the properties required at the low temperature such as solubility, transfer temperature, electrical reliability, and birefringence. The type of the compound to be used is, for example, one of the embodiments of the present invention. Or in another embodiment of the present invention, there are two types. Further, in another embodiment of the present invention, there are three types. Further, in another embodiment of the present invention, there are four types.
較佳之含量之下限值係相對於本發明之液晶組成物之總量,例如於一實施形態中為2%。進而,於本發明之另一實施形態中為4%。進而,於本發明之另一實施形態中為7%。進而,於本發明之另一實施形態中為10%。進而,於本發明之另一實施形態中為12%。進而,於本發明之另一實施形態中為15%。The lower limit of the preferred content is based on the total amount of the liquid crystal composition of the present invention, for example, 2% in one embodiment. Further, in another embodiment of the present invention, it is 4%. Further, in another embodiment of the present invention, it is 7%. Further, in another embodiment of the present invention, it is 10%. Further, in another embodiment of the present invention, it is 12%. Further, in another embodiment of the present invention, it is 15%.
又,作為較佳之含量之上限值,例如於本發明之一實施形態中,於本發明之另一實施形態中為20%。進而,於本發明之另一實施形態中為15%。進而,於本發明之另一實施形態中為10%。進而,於本發明之另一實施形態中為5%。進而,於本發明之另一實施形態中為4%。Further, as a preferable upper limit of the content, for example, in an embodiment of the present invention, it is 20% in another embodiment of the present invention. Further, in another embodiment of the present invention, it is 15%. Further, in another embodiment of the present invention, it is 10%. Further, in another embodiment of the present invention, it is 5%. Further, in another embodiment of the present invention, it is 4%.
較佳之含量之範圍係相對於本發明之液晶組成物之總量,例如於一實施形態中為2~15%。進而,於本發明之另一實施形態中為4~12%。進而,於本發明之另一實施形態中為6~12%。The preferred range of the content is based on the total amount of the liquid crystal composition of the present invention, for example, 2 to 15% in one embodiment. Further, in another embodiment of the present invention, it is 4 to 12%. Further, in another embodiment of the present invention, it is 6 to 12%.
進而,通式(VIII)所表示之化合物較佳為通式(VIII-a)所表示之化合物。Further, the compound represented by the formula (VIII) is preferably a compound represented by the formula (VIII-a).
(式中,R51 及R52 分別獨立地表示碳原子數1~5之烷基、碳原子數2~5之烯基或碳原子數1~4之烷氧基)(wherein R 51 and R 52 each independently represent an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms)
較佳為相對於本發明之液晶組成物之總量含有通式(VIII-a)所表示之化合物1質量%以上,進而較佳為含有2質量%以上,進而較佳為含有3質量%以上,尤佳為含有4質量%以上。又,作為最大可含有之比率,較佳為15質量%以下,更佳為10質量%以下,進而較佳為8質量%以下。It is preferable that the compound represented by the formula (VIII-a) is contained in an amount of 1% by mass or more, more preferably 2% by mass or more, and still more preferably 3% by mass or more, based on the total amount of the liquid crystal composition of the present invention. More preferably, it is contained in an amount of 4% by mass or more. Moreover, the ratio which can be contained at the maximum is preferably 15% by mass or less, more preferably 10% by mass or less, and still more preferably 8% by mass or less.
進而,較佳之含量之範圍相對於本發明之液晶組成物之總量較佳為含有1質量%以上且15質量%以下,進而較佳為含有2質量%以上且10質量%以下,進而較佳為含有3質量%以上且8質量%以下,尤佳為含有4質量%以上且8質量%以下。Furthermore, the range of the content of the liquid crystal composition of the present invention is preferably 1% by mass or more and 15% by mass or less, more preferably 2% by mass or more and 10% by mass or less, and further preferably. It is contained in an amount of 3% by mass or more and 8% by mass or less, and more preferably 4% by mass or more and 8% by mass or less.
進而,通式(VIII-a)所表示之化合物較佳為式(VIII-a-1)至式(VIII-a-4)所表示之化合物,較佳為式(VIII-a-2)所表示之化合物。Further, the compound represented by the formula (VIII-a) is preferably a compound represented by the formula (VIII-a-1) to the formula (VIII-a-4), preferably a compound of the formula (VIII-a-2). Expressed as a compound.
進而,通式(VIII)所表示之化合物較佳為通式(VIII-b)所表示之化合物。Further, the compound represented by the formula (VIII) is preferably a compound represented by the formula (VIII-b).
(式中,R51 及R52 分別獨立地表示碳原子數1~5之烷基、碳原子數2~5之烯基或碳原子數1~4之烷氧基)(wherein R 51 and R 52 each independently represent an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms)
可組合之化合物之種類並無特別限制,根據低溫下之溶解性、轉移溫度、電性可靠性、雙折射率等所要求之性能而組合。使用之化合物之種類例如於本發明之一實施形態中為1種。或於本發明之另一實施形態中為2種。進而,於本發明之另一實施形態中為3種以上。The type of the compound which can be combined is not particularly limited, and is combined according to the properties required at the low temperature such as solubility, transfer temperature, electrical reliability, and birefringence. The type of the compound to be used is, for example, one of the embodiments of the present invention. Or in another embodiment of the present invention, there are two types. Further, in another embodiment of the present invention, it is three or more.
較佳為相對於本發明之液晶組成物之總量含有通式(VIII-b)所表示之化合物2質量%以上,進而較佳為含有4質量%以上,進而較佳為含有7質量%以上,尤佳為含有8質量%以上。又,作為最大可含有之比率,較佳為15質量%以下,更佳為13質量%以下,進而較佳為11質量%以下。The compound represented by the formula (VIII-b) is contained in an amount of 2% by mass or more, more preferably 4% by mass or more, and still more preferably 7% by mass or more, based on the total amount of the liquid crystal composition of the present invention. It is especially preferable to contain 8% by mass or more. Moreover, the ratio which can be contained the maximum is preferably 15% by mass or less, more preferably 13% by mass or less, and still more preferably 11% by mass or less.
較佳之含量之範圍較佳為含有2質量%以上且15質量%以下,進而較佳為含有4質量%以上且15質量%以下,進而較佳為含有7質量%以上且13質量%以下。The range of the preferable content is preferably 2% by mass or more and 15% by mass or less, more preferably 4% by mass or more and 15% by mass or less, and still more preferably 7% by mass or more and 13% by mass or less.
進而,通式(VIII-b)所表示之化合物較佳為式(VIII-b-1) 至式(VIII-b-3)所表示之化合物。Further, the compound represented by the formula (VIII-b) is preferably a formula (VIII-b-1) To the compound represented by the formula (VIII-b-3).
進而,通式(VIII)所表示之化合物較佳為通式(VIII-c)所表示之化合物。Further, the compound represented by the formula (VIII) is preferably a compound represented by the formula (VIII-c).
(式中,R51 及R52 分別獨立地表示碳原子數1~5之烷基、碳原子數2~5之烯基或碳原子數1~4之烷氧基,X51 及X52 分別獨立地表示氟原子或氫原子。X51 及X52 中之至少一個為氟原子,不存在兩個同時均為氟原子之情形)(wherein R 51 and R 52 each independently represent an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms, and X 51 and X 52 respectively Independently indicating a fluorine atom or a hydrogen atom. At least one of X 51 and X 52 is a fluorine atom, and there is no case where both are fluorine atoms.
進而,通式(VIII-c)所表示之化合物較佳為通式(VIII-c-1)所表示之化合物。Further, the compound represented by the formula (VIII-c) is preferably a compound represented by the formula (VIII-c-1).
(式中,R51 及R52 分別獨立地表示碳原子數1~5之烷基、碳原子數2~5之烯基或碳原子數1~4之烷氧基)(wherein R 51 and R 52 each independently represent an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms)
較佳為相對於本發明之液晶組成物之總量含有通式 (VIII-c-1)所表示之化合物1質量%以上,進而較佳為含有2質量%以上,進而較佳為含有3質量%以上,尤佳為含有4質量%以上。又,作為最大可含有之比率,較佳為10質量%以下,進而較佳為8質量%以下。It is preferred to contain a general formula with respect to the total amount of the liquid crystal composition of the present invention. The compound represented by (VIII-c-1) is 1% by mass or more, more preferably 2% by mass or more, further preferably 3% by mass or more, and particularly preferably 4% by mass or more. Further, the ratio which can be contained at the maximum is preferably 10% by mass or less, and more preferably 8% by mass or less.
進而,較佳之含量之範圍較佳為含有1質量%以上且10質量%以下,進而較佳為含有2質量%以上且8質量%以下,進而較佳為含有3質量%以上且8質量%以下。Furthermore, the range of the preferable content is preferably 1% by mass or more and 10% by mass or less, more preferably 2% by mass or more and 8% by mass or less, and still more preferably 3% by mass or more and 8% by mass or less. .
進而,通式(VIII-c-1)所表示之化合物較佳為式(VIII-c-1-1)至式(VIII-c-1-3)所表示之化合物,較佳為式(VIII-c-1-1)所表示之化合物。Further, the compound represented by the formula (VIII-c-1) is preferably a compound represented by the formula (VIII-c-1-1) to the formula (VIII-c-1-3), preferably a formula (VIII). -c-1-1) the compound represented.
進而,通式(VIII-c)所表示之化合物較佳為通式(VIII-c-2)所表示之化合物。Further, the compound represented by the formula (VIII-c) is preferably a compound represented by the formula (VIII-c-2).
(式中,R51 及R52 分別獨立地表示碳原子數1~5之烷基、碳原子數2~5之烯基或碳原子數1~4之烷氧基)(wherein R 51 and R 52 each independently represent an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms)
較佳為相對於本發明之液晶組成物之總量含有通式(VIII-c-2)所表示之化合物1質量%以上,進而較佳為含有2質量%以上,進而較佳為含有3質量%以上,尤佳為含有4質量%以上。又,作為最大可 含有之比率,較佳為10質量%以下,進而較佳為8質量%以下。It is preferable that the compound represented by the formula (VIII-c-2) is contained in an amount of 1% by mass or more, more preferably 2% by mass or more, and still more preferably 3% by mass based on the total amount of the liquid crystal composition of the present invention. More preferably, it is more than 4% by mass. Also, as the largest The ratio of the content is preferably 10% by mass or less, and more preferably 8% by mass or less.
進而,較佳之含量之範圍較佳為含有1質量%以上且10質量%以下,進而較佳為含有2質量%以上且8質量%以下,進而較佳為含有3質量%以上且8質量%以下。Furthermore, the range of the preferable content is preferably 1% by mass or more and 10% by mass or less, more preferably 2% by mass or more and 8% by mass or less, and still more preferably 3% by mass or more and 8% by mass or less. .
進而,通式(VIII-c-2)所表示之化合物較佳為式(VIII-c-2-1)至式(VIII-c-2-3)所表示之化合物。較佳為式(VIII-c-2-1)所表示之化合物。Further, the compound represented by the formula (VIII-c-2) is preferably a compound represented by the formula (VIII-c-2-1) to the formula (VIII-c-2-3). Preferred is a compound represented by the formula (VIII-c-2-1).
進而,通式(VIII)所表示之化合物較佳為通式(VIII-d)所表示之化合物。Further, the compound represented by the formula (VIII) is preferably a compound represented by the formula (VIII-d).
(式中,R51 及R52 分別獨立地表示碳原子數1~5之烷基、碳原子數2~5之烯基或碳原子數1~4之烷氧基,X51 及X52 分別獨立地表示氟原子或氫原子,不存在兩個同時均為氟原子之情形)(wherein R 51 and R 52 each independently represent an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms, and X 51 and X 52 respectively Independently indicating a fluorine atom or a hydrogen atom, and there are no cases where both are fluorine atoms)
可組合之化合物之種類並無特別限制,根據低溫下之溶解性、轉移溫度、電性可靠性、雙折射率等所要求之性能而組合。使用之化合物之種類例如於本發明之一實施形態中為1種。或於本發明之另一實施形態中為2種以上。The type of the compound which can be combined is not particularly limited, and is combined according to the properties required at the low temperature such as solubility, transfer temperature, electrical reliability, and birefringence. The type of the compound to be used is, for example, one of the embodiments of the present invention. Or another embodiment of this invention is two or more types.
較佳之含量之下限值係相對於本發明之液晶組成物之總量,例如於一實施形態中為2%。進而,於本發明之另一實施形態中為4%。進而,於本發明之另一實施形態中為7%。進而,於本發明之另一實施形態中為10%。進而,於本發明之另一實施形態中為12%。The lower limit of the preferred content is based on the total amount of the liquid crystal composition of the present invention, for example, 2% in one embodiment. Further, in another embodiment of the present invention, it is 4%. Further, in another embodiment of the present invention, it is 7%. Further, in another embodiment of the present invention, it is 10%. Further, in another embodiment of the present invention, it is 12%.
又,作為較佳之含量之上限值,例如於本發明之一實施形態中,於本發明之另一實施形態中為15%。進而,於本發明之另一實施形態中為10%。進而,於本發明之另一實施形態中為5%。進而,於本發明之另一實施形態中為4%。Further, as a preferable upper limit of the content, for example, in an embodiment of the present invention, it is 15% in another embodiment of the present invention. Further, in another embodiment of the present invention, it is 10%. Further, in another embodiment of the present invention, it is 5%. Further, in another embodiment of the present invention, it is 4%.
進而,較佳之含量之範圍係相對於本發明之液晶組成物之總量,例如於一實施形態中為2~10%。進而,於本發明之另一實施形態中為4%~10%。Further, the preferred content range is from 2 to 10% based on the total amount of the liquid crystal composition of the present invention, for example, in one embodiment. Further, in another embodiment of the present invention, it is 4% to 10%.
於期望本發明之液晶組成物為Tni 較高之實施形態之情形時,較佳為增加式(VIII-d)所表示之化合物之含量,於期望低黏度之實施形態之情形時,較佳為減少含量。In the case where the liquid crystal composition of the present invention is desired to have a higher T ni embodiment, it is preferred to increase the content of the compound represented by the formula (VIII-d), preferably in the case of a low viscosity embodiment. To reduce the content.
進而,通式(VIII-d)所表示之化合物較佳為通式(VIII-d-1)所表示之化合物。Further, the compound represented by the formula (VIII-d) is preferably a compound represented by the formula (VIII-d-1).
(式中,R51 及R52 分別獨立地表示碳原子數1~5之烷基、碳原子數2~5烯基或碳原子數1~4之烷氧基)(wherein R 51 and R 52 each independently represent an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms)
進而,通式(VIII-d-1)所表示之化合物較佳為式(VIII-d-1-1)至式(VIII-d-1-4)所表示之化合物,較佳為式(VIII-d-1-1)或/及式(VIII-d-1-2)所表示之化合物。Further, the compound represented by the formula (VIII-d-1) is preferably a compound represented by the formula (VIII-d-1-1) to the formula (VIII-d-1-4), preferably a formula (VIII). -d-1-1) or / and a compound represented by the formula (VIII-d-1-2).
[化15]
進而,通式(VIII-d)所表示之化合物較佳為通式(VIII-d-2)所表示之化合物。Further, the compound represented by the formula (VIII-d) is preferably a compound represented by the formula (VIII-d-2).
(式中,R51 及R52 分別獨立地表示碳原子數1~5之烷基、碳原子數2~5之烯基或碳原子數1~4之烷氧基)(wherein R 51 and R 52 each independently represent an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms or an alkoxy group having 1 to 4 carbon atoms)
進而,通式(VIII-d-2)所表示之化合物較佳為式(VIII-d-2-1)至式(VIII-d-2-4)所表示之化合物,較佳為式(VIII-d-2-1)或/及式(VIII-d-2-2)所表示之化合物。Further, the compound represented by the formula (VIII-d-2) is preferably a compound represented by the formula (VIII-d-2-1) to the formula (VIII-d-2-4), preferably a formula (VIII). -d-2-1) or / and a compound represented by the formula (VIII-d-2-2).
[化15]
本發明之液晶組成物進而亦可含有通式(IX-a)所表示之化合物之1種或2種以上。The liquid crystal composition of the present invention may further contain one or more compounds of the formula (IX-a).
(式中,R61 及R62 分別獨立地表示碳原子數1至10之直鏈烷基、碳原子數1至10之直鏈烷氧基或碳原子數2至10之直鏈烯基)(wherein R 61 and R 62 each independently represent a linear alkyl group having 1 to 10 carbon atoms, a linear alkoxy group having 1 to 10 carbon atoms or a linear alkenyl group having 2 to 10 carbon atoms)
可組合之化合物之種類並無特別限制,但較佳為根據低溫下之溶解性、轉移溫度、電性可靠性、雙折射率等所要求之性能而含有該等化合物中之1種~3種,進而較佳為含有1種~4種,尤佳為含有1種~5種以上。又,作為最大可含有之比率,較佳為30質量%以下,更佳為25質量%以下,進而較佳為15質量%以下。The type of the compound which can be combined is not particularly limited, but it is preferred to contain one to three kinds of these compounds depending on the properties required for solubility at low temperature, transfer temperature, electrical reliability, and birefringence. Further, it is preferably one to four kinds, and more preferably one to five or more. Moreover, the ratio which can be contained at the maximum is preferably 30% by mass or less, more preferably 25% by mass or less, and still more preferably 15% by mass or less.
進而,較佳之含量之範圍較佳為5質量%以上且35質量%以下,更佳為10質量%以上且20質量%以下,進而較佳為5質量%以上且15質量%以下。Further, the range of the preferable content is preferably 5% by mass or more and 35% by mass or less, more preferably 10% by mass or more and 20% by mass or less, still more preferably 5% by mass or more and 15% by mass or less.
通式(IX-a)所表示之化合物具體而言可較佳使用以下所列舉之化合物。Specifically, the compound represented by the formula (IX-a) can be preferably used.
[化4]
[化4]
本案發明之液晶組成物進而可含有通式(IX-b)所表示之化合物之1種或2種以上。The liquid crystal composition of the present invention may further contain one or more compounds of the formula (IX-b).
(式中,R71 及R72 分別獨立地表示碳原子數1至10之直鏈烷基、碳原子數1至10之直鏈烷氧基或碳原子數4至10之直鏈烯基)(wherein R 71 and R 72 each independently represent a linear alkyl group having 1 to 10 carbon atoms, a linear alkoxy group having 1 to 10 carbon atoms or a linear alkenyl group having 4 to 10 carbon atoms)
可組合之化合物之種類並無特別限制,但較佳為根據低溫下之溶解性、轉移溫度、電性可靠性、雙折射率等所要求之性能而含有該等化合物中之1種~3種,進而較佳為含有1種~4種,尤佳為含有1種~5種以上。又,作為最大可含有之比率,較佳為30質量%以下,更佳為20質量%以下,進而較佳為15質量%以下。The type of the compound which can be combined is not particularly limited, but it is preferred to contain one to three kinds of these compounds depending on the properties required for solubility at low temperature, transfer temperature, electrical reliability, and birefringence. Further, it is preferably one to four kinds, and more preferably one to five or more. Moreover, the ratio which can be contained at the maximum is preferably 30% by mass or less, more preferably 20% by mass or less, and still more preferably 15% by mass or less.
進而,較佳之含量之範圍較佳為5質量%以上且30質量%以下,更佳為10質量%以上且20質量%以下,進而較佳為5質量%以上且15質量%以下。Furthermore, the range of the preferable content is preferably 5% by mass or more and 30% by mass or less, more preferably 10% by mass or more and 20% by mass or less, and still more preferably 5% by mass or more and 15% by mass or less.
通式(IX-b)所表示之化合物具體而言可較佳使用以下所列舉之化合物。Specifically, the compound represented by the formula (IX-b) can be preferably used.
[化25]
本案之1,4-伸環己基較佳為反式-1,4-伸環己基。The 1,4-cyclohexylene group in the present case is preferably a trans-1,4-cyclohexylene group.
本發明之液晶組成物較佳為含有選自通式(X)所表示之群中之1種或2種以上之化合物,
(式中,RX1 及RX2 相互獨立地表示碳原子數1至10之烷基、碳原子數1至10之烷氧基或碳原子數2至10之烯基,該等基中存在之1個亞甲基或未鄰接之2個以上之亞甲基亦可經-O-或-S-取代,又,該等基中存在之1個或2個以上之氫原子亦可經氟原子或氯原子取代,u及v相互獨立地表示0、1或2,u+v為2以下,MX1 、MX2 及MX3 相互獨立地表示選自由(a)反式-1,4-伸環己基(該基中存在之1個亞甲基或未鄰接之2個以 上之亞甲基亦可經-O-或-S-取代)、(b)1,4-伸苯基(該基中存在之1個-CH=或未鄰接之2個以上之-CH=亦可經-N=取代)(wherein R X1 and R X2 independently of each other represent an alkyl group having 1 to 10 carbon atoms, an alkoxy group having 1 to 10 carbon atoms or an alkenyl group having 2 to 10 carbon atoms, which are present in the groups One methylene group or two or more methylene groups which are not adjacent may be substituted by -O- or -S-, and one or two or more hydrogen atoms present in the groups may also pass through a fluorine atom. Or a chlorine atom substitution, u and v independently of each other represent 0, 1 or 2, u+v is 2 or less, and M X1 , M X2 and M X3 independently of each other are selected from (a) trans-1,4-extension a cyclohexyl group (one methylene group present in the group or two or more methylene groups not adjacent thereto may be substituted by -O- or -S-), (b) 1,4-phenylene group (the group) One of the -CH= or two or more non-contiguous -CH= can also be substituted by -N=)
所組成之群中之基,上述基(a)或基(b)中所含之氫原子亦可分別經氰基、氟原子、三氟甲基、三氟甲氧基或氯原子取代,但於MX2 及/或MX3 存在複數個之情形時,該等可相同亦可不同,LX1 、LX2 及LX3 相互獨立地表示單鍵、-COO-、-OCO-、-CH2 CH2 -、-(CH2 )4 、-OCH2 -、-CH2 O-、-OCF2 -、-CF2 O-、-CH=CH-或-C≡C-,於LX1 及/或LX2 存在複數個之情形時,該等可相同亦可不同,XX1 及XX2 相互獨立地表示三氟甲基、三氟甲氧基或氟原子,但X31 及X32 中之任一個均表示氟原子)。In the group of the group, the hydrogen atom contained in the above group (a) or the group (b) may be substituted by a cyano group, a fluorine atom, a trifluoromethyl group, a trifluoromethoxy group or a chlorine atom, respectively. In the case where there are a plurality of M X2 and/or M X3 , the same may be different, and L X1 , L X2 and L X3 independently represent a single bond, -COO-, -OCO-, -CH 2 CH 2 -, -(CH 2 ) 4 , -OCH 2 -, -CH 2 O-, -OCF 2 -, -CF 2 O-, -CH=CH- or -C≡C-, at L X1 and/or When a plurality of L X2 are present, the same may be different, and X X1 and X X2 independently of each other represent a trifluoromethyl group, a trifluoromethoxy group or a fluorine atom, but any of X 31 and X 32 All represent fluorine atoms).
RX1 及RX2 於其鍵結之環結構為苯基(芳香族)之情形時,較佳為直鏈狀之碳原子數1~5之烷基、直鏈狀之碳原子數1~4(或其以上)之烷氧基及碳原子數4~5之烯基,於其鍵結之環結構為環己烷、吡喃及二[口+咢]烷等飽和之環結構之情形時,較佳為直鏈狀之碳原子數1~5之烷基、直鏈狀之碳原子數1~4(或其以上)之烷氧基及直鏈狀之碳原子數2~5之烯基。When R X1 and R X2 are bonded to a phenyl group (aromatic), a linear alkyl group having 1 to 5 carbon atoms and a linear carbon number of 1 to 4 are preferable. The alkoxy group of (or more) and the alkenyl group having 4 to 5 carbon atoms, in the case where the ring structure of the bond is a saturated ring structure such as cyclohexane, pyran or di-[o-[indol] alkane Preferably, it is a linear alkyl group having 1 to 5 carbon atoms, a linear alkoxy group having 1 to 4 carbon atoms or more, and a linear alkyl group having 2 to 5 carbon atoms. base.
於重視顯示元件之響應速度之改善之情形時,較佳為烯基,於重視電壓保持率等之可靠性之情形時,較佳為烷基。作為烯基,較佳為以下所記載之式(Alkenyl-1)~式(Alkenyl-4)所表示之結構,
(式中,對環結構係以右端鍵結)(wherein the ring structure is bonded to the right end)
但於本案發明之液晶組成物含有反應性單體之情形時,較佳 為式(Alkenyl-2)及式(Alkenyl-4)所表示之結構,更佳為式(Alkenyl-2)所表示之結構。However, in the case where the liquid crystal composition of the invention of the present invention contains a reactive monomer, it is preferably The structure represented by the formula (Alkenyl-2) and the formula (Alkenyl-4) is more preferably a structure represented by the formula (Alkenyl-2).
於通式(X)所表示之化合物要求液晶組成物之化學穩定性之情形時,較佳為於其分子內不具有硫原子、氮原子、酯基、氰基及氯原子。When the compound represented by the formula (X) requires chemical stability of the liquid crystal composition, it is preferred that the compound does not have a sulfur atom, a nitrogen atom, an ester group, a cyano group or a chlorine atom in its molecule.
可組合之化合物之種類並無特別限制,根據低溫下之溶解性、轉移溫度、電性可靠性、雙折射率等所期望之性能而適當組合使用。使用之化合物之種類例如於本發明之一實施形態中為1種。或於本發明之另一實施形態中為2種。又,於本發明之另一實施形態中為3種。進而,於本發明之另一實施形態中為4種。進而,於本發明之另一實施形態中為5種。進而,於本發明之另一實施形態中為6種。進而,於本發明之另一實施形態中為7種。進而,於本發明之另一實施形態中為8種。進而,於本發明之另一實施形態中9種。進而,於本發明之另一實施形態中為10種以上。The type of the compound which can be combined is not particularly limited, and may be appropriately combined and used depending on the desired properties such as solubility at low temperature, transfer temperature, electrical reliability, and birefringence. The type of the compound to be used is, for example, one of the embodiments of the present invention. Or in another embodiment of the present invention, there are two types. Further, in another embodiment of the present invention, there are three types. Further, in another embodiment of the present invention, there are four types. Further, in another embodiment of the present invention, there are five types. Further, in another embodiment of the present invention, there are six types. Further, in another embodiment of the present invention, there are seven types. Further, in another embodiment of the present invention, there are eight types. Further, in another embodiment of the present invention, nine types are provided. Further, in another embodiment of the present invention, it is 10 or more.
於本發明之液晶組成物中,通式(X)所表示之化合物之含量必需根據低溫下之溶解性、轉移溫度、電性可靠性、雙折射率、製程適合性、滴加痕跡、留痕、介電各向異性等所要求之性能而適當調整。In the liquid crystal composition of the present invention, the content of the compound represented by the formula (X) must be based on solubility at low temperature, transfer temperature, electrical reliability, birefringence, process suitability, traces of traces, and traces. The properties required for dielectric anisotropy and the like are appropriately adjusted.
較佳之含量之下限值係相對於本發明之液晶組成物之總量,例如於本發明之另一實施形態中為15%。又,於本發明之另一實施形態中為25%。進而,於本發明之另一實施形態中為30%。進而,於本發明之另一實施形態中為40%。進而,於本發明之另一實施形態中為45%。The lower limit of the preferred content is relative to the total amount of the liquid crystal composition of the present invention, for example, 15% in another embodiment of the present invention. Further, in another embodiment of the present invention, it is 25%. Further, in another embodiment of the present invention, it is 30%. Further, in another embodiment of the present invention, it is 40%. Further, in another embodiment of the present invention, it is 45%.
進而,較佳之含量之上限值係相對於本發明之液晶組成物之總量,例如於本發明之另一實施形態中為75%。進而,於本發明之另一實施形態中為65%。進而,於本發明之另一實施形態中為55%。進而,於本發明之另一實施形態中為50%。Further, the upper limit of the preferable content is 75% based on the total amount of the liquid crystal composition of the present invention, for example, in another embodiment of the present invention. Further, in another embodiment of the present invention, it is 65%. Further, in another embodiment of the present invention, it is 55%. Further, in another embodiment of the present invention, it is 50%.
較佳之含量之範圍係相對於本發明之液晶組成物之總量,例如於本發明之一實施形態中為10~65%。或於本發明之另一實施形態中為15~60%。又,於本發明之另一實施形態中為30~60%。進而,於本發明之另一實施形態中為40~55%。The preferred content range is from 10 to 65% based on the total amount of the liquid crystal composition of the present invention, for example, in one embodiment of the present invention. Or in another embodiment of the present invention, it is 15 to 60%. Further, in another embodiment of the present invention, it is 30 to 60%. Further, in another embodiment of the present invention, it is 40 to 55%.
於必需為較低地保持本發明之液晶組成物之黏度,且響應速度較快之液晶組成物之情形時,較佳為上述下限值較高且上限值較高。進而,於必需為較高地保持本發明之液晶組成物之Tni ,且溫度穩定性良好之液晶組成物之情形時,較佳為上述下限值較高且上限值較高。又,於為了較低地保持驅動電壓而欲增大介電各向異性時,較佳為降低上述下限值,且使上限值較低。In the case where it is necessary to maintain the viscosity of the liquid crystal composition of the present invention at a low level and the liquid crystal composition has a fast response speed, it is preferable that the lower limit value is higher and the upper limit value is higher. Further, in the case where it is necessary to maintain a liquid crystal composition having a T ni of the liquid crystal composition of the present invention and having a good temperature stability, it is preferred that the lower limit value is higher and the upper limit value is higher. Further, in order to increase the dielectric anisotropy in order to maintain the driving voltage at a low level, it is preferable to lower the above lower limit value and lower the upper limit value.
進而,通式(X)所表示之化合物較佳為通式(XI)所表示之化合物。Further, the compound represented by the formula (X) is preferably a compound represented by the formula (XI).
(式中,RX1 表示與通式(X)中之RX1 相同之含義,MX1 表示與通式(X)中之MX1 相同之含義,RX2 表示與通式(X)中之RX2 相同之含義)(Wherein, R and X1 represents formula (X) R is the same in the meaning of X1, M X1 represents the same meaning as in the general formula (X) M X1, R X2 represents in the general formula (X) R The same meaning of X2 )
含有通式(XI)所表示之化合物之情形時之較佳之含量之下限值係相對於本發明之液晶組成物之總量,例如於本發明之一實施形態中為3%。或於本發明之另一實施形態中為7%。或於本發明之另一實施形態中為10%。又,於本發明之另一實施形態中為11%。又,於本發明之另一實施形態中為14%。又,於本發明之另一實施形態中為20%。進而,於本發明之另一實施形態中為30%。The lower limit of the content in the case of containing the compound represented by the formula (XI) is based on the total amount of the liquid crystal composition of the present invention, for example, 3% in one embodiment of the present invention. Or in another embodiment of the present invention, it is 7%. Or in another embodiment of the present invention, it is 10%. Further, in another embodiment of the present invention, it is 11%. Further, in another embodiment of the present invention, it is 14%. Further, in another embodiment of the present invention, it is 20%. Further, in another embodiment of the present invention, it is 30%.
進而,較佳之含量之上限值係相對於本發明之液晶組成物之 總量,例如於本發明之另一實施形態中為55%。進而,於本發明之另一實施形態中為45%,進而,於本發明之另一實施形態中為35%.Further, the upper limit of the preferred content is relative to the liquid crystal composition of the present invention. The total amount is, for example, 55% in another embodiment of the present invention. Further, in another embodiment of the present invention, it is 45%, and further, in another embodiment of the present invention, it is 35%.
於含有通式(XI)所表示之化合物之情形時,作為較佳之含量之範圍,較佳為含有5~35質量%,更佳為含有7~25質量%,進而較佳為含有11~21質量%,尤佳為含有13~16質量%。In the case of containing the compound represented by the formula (XI), the range of the preferable content is preferably from 5 to 35% by mass, more preferably from 7 to 25% by mass, even more preferably from 11 to 21%. The mass% is particularly preferably 13 to 16% by mass.
於通式(XI)中,RX1 較佳為表示碳原子數1~8之烷基、碳原子數2~8之烯基,更佳為表示碳原子數1~8之烷基,進而較佳為表示碳原子數3~5之烷基,進而較佳為表示碳原子數3或5之烷基,較佳為直鏈,較佳為直鏈狀。In the formula (XI), R X1 is preferably an alkyl group having 1 to 8 carbon atoms or an alkenyl group having 2 to 8 carbon atoms, more preferably an alkyl group having 1 to 8 carbon atoms, and further Preferably, it is an alkyl group having 3 to 5 carbon atoms, more preferably an alkyl group having 3 or 5 carbon atoms, more preferably a straight chain, and preferably a linear chain.
於通式(XI)中,RX2 較佳為表示碳原子數1~8之烷基、碳原子數2~8之烯基、碳原子數1~8之烷氧基或碳原子數2~8之烯氧基,較佳為表示碳原子數1~8之烷基或碳原子數1~8之烷氧基,更佳為表示碳原子數3~5之烷基或碳原子數2~4之烷氧基,更佳為表示碳原子數3或5之烷基或碳原子數2或4之烷氧基,進而較佳為表示碳原子數2或4之烷氧基,較佳為直鏈。In the formula (XI), R X2 preferably represents an alkyl group having 1 to 8 carbon atoms, an alkenyl group having 2 to 8 carbon atoms, an alkoxy group having 1 to 8 carbon atoms or 2 to 2 carbon atoms. The alkenyloxy group of 8 preferably represents an alkyl group having 1 to 8 carbon atoms or an alkoxy group having 1 to 8 carbon atoms, more preferably an alkyl group having 3 to 5 carbon atoms or 2 to 2 carbon atoms. The alkoxy group of 4 is more preferably an alkyl group having 3 or 5 carbon atoms or an alkoxy group having 2 or 4 carbon atoms, more preferably an alkoxy group having 2 or 4 carbon atoms, more preferably Straight.
於重視顯示元件之響應速度之改善之情形時,較佳為烯基,於重視電壓保持率等之可靠性之情形時,較佳為烷基。In the case where the improvement of the response speed of the display element is emphasized, the alkenyl group is preferred, and in the case where the reliability of the voltage holding ratio or the like is emphasized, the alkyl group is preferred.
可組合之化合物之種類並無特別限制,根據低溫下之溶解性、轉移溫度、電性可靠性、雙折射率等所期望之性能而適當組合使用。使用之化合物之種類例如於本發明之一實施形態中為1種。或於本發明之另一實施形態中為2種。又,於本發明之另一實施形態中為3種。進而,於本發明之另一實施形態中為4種。進而,於本發明之另一實施形態中為5種以上。The type of the compound which can be combined is not particularly limited, and may be appropriately combined and used depending on the desired properties such as solubility at low temperature, transfer temperature, electrical reliability, and birefringence. The type of the compound to be used is, for example, one of the embodiments of the present invention. Or in another embodiment of the present invention, there are two types. Further, in another embodiment of the present invention, there are three types. Further, in another embodiment of the present invention, there are four types. Further, in another embodiment of the present invention, it is five or more.
通式(XI)所表示之化合物亦可僅使用1種,但較佳為使用2種以上,較佳為使用3種以上。於使用通式(XI)所表示之化合物2種以 上之情形時,較佳為組合使用RX1 表示碳原子數為3~5之烷基,RX2 表示碳原子數為2~4之烷氧基之通式(XI)之化合物,於與其他通式(XI)所表示之化合物組合使用之情形時,RX1 表示碳原子數為3~5之烷基,RX2 表示碳原子數為2~4之烷氧基之通式(XI)之化合物之含量較佳為通式(XI)所表示之化合物中之50質量%以上,更佳為70質量%以上,進而較佳為80質量%以上。較佳之範圍較佳為50質量%以上且70質量%以下,更佳為70質量%以上且80質量%以下,進而較佳為80質量%以上且100%以下。The compound represented by the formula (XI) may be used alone or in combination of two or more. It is preferred to use three or more kinds. When two or more kinds of the compounds represented by the formula (XI) are used, it is preferred to use R X1 in combination to represent an alkyl group having 3 to 5 carbon atoms, and R X2 represents an alkoxy group having 2 to 4 carbon atoms. When a compound of the formula (XI) is used in combination with a compound represented by the other formula (XI), R X1 represents an alkyl group having 3 to 5 carbon atoms, and R X2 represents a carbon atom of 2 The content of the compound of the formula (XI) of the alkoxy group of ~4 is preferably 50% by mass or more, more preferably 70% by mass or more, and still more preferably 80% by mass based on the compound represented by the formula (XI). the above. The preferred range is preferably 50% by mass or more and 70% by mass or less, more preferably 70% by mass or more and 80% by mass or less, still more preferably 80% by mass or more and 100% or less.
於通式(XI)中,MX1 表示1,4-伸環己基、1,4-伸苯基或四氫呋喃-2,5-二基,但於MX1 表示1,4-伸苯基之情形時,該1,4-伸苯基中之1個以上之氫原子亦可經氟原子取代,但較佳為1,4-伸環己基、或1,4-伸苯基,更具體而言,於在使用該發明之液晶組成物而製作之顯示元件及液晶顯示器中重視響應速度之情形時,較佳為表示1,4-伸苯基,於重視動作溫度範圍之情形即必需為較高之動作溫度範圍(Tni 較高)之情形時,較佳為表示1,4-伸環己基,於表示1,4-伸苯基之情形時,苯環中之1個以上之氫原子亦可經氟取代,但較佳為未經取代,1個經取代或2個經取代,更佳為未經取代。於2個經取代之情形時,較佳為表示2,3-二氟-1,4-伸苯基。In the formula (XI), M X1 represents 1,4-cyclohexylene, 1,4-phenylene or tetrahydrofuran-2,5-diyl, but in the case where M X1 represents 1,4-phenylene When one or more hydrogen atoms of the 1,4-phenylene group may be substituted by a fluorine atom, it is preferably a 1,4-cyclohexylene group or a 1,4-phenylene group, more specifically In the case where the display element produced by using the liquid crystal composition of the invention and the liquid crystal display emphasize the response speed, it is preferable to express 1,4-phenylene, and it is necessary to raise the operating temperature range. In the case of the operating temperature range (higher T ni ), it is preferably a 1,4-cyclohexylene group, and in the case of a 1,4-phenylene group, one or more hydrogen atoms in the benzene ring are also It may be substituted by fluorine, but is preferably unsubstituted, 1 substituted or 2 substituted, more preferably unsubstituted. In the case of two substitutions, it is preferred to represent 2,3-difluoro-1,4-phenylene.
通式(XI)所表示之化合物具體而言較佳為選自以下所記載之通式(XI-1)及/或通式(XI-2)所表示之群之化合物,
(式中,RX11 、RX21 、RX12 及RX22 分別獨立地表示碳原子數1~5之烷基、碳原子數2~5之烯基、碳原子數1~5之烷氧基或碳原子數2 ~5之烯氧基)。(wherein R X11 , R X21 , R X12 and R X22 each independently represent an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, an alkoxy group having 1 to 5 carbon atoms or An alkenyl group having 2 to 5 carbon atoms).
於RX21 、RX12 及RX22 為烯基之情形時,碳原子數較佳為4~5。RX11 較佳為烷基或烯基,進而較佳為烷基,RX21 及RX22 較佳為烷基或烷氧基,於增大△ε之絕對值之情形時,較佳為烷氧基或烯氧基,進而較佳為烷氧基,RX12 較佳為烷基或烯基,進而較佳為烷基。When R X21 , R X12 and R X22 are alkenyl groups, the number of carbon atoms is preferably 4 to 5. R X11 is preferably an alkyl group or an alkenyl group, more preferably an alkyl group, and R X21 and R X22 are preferably an alkyl group or an alkoxy group. When the absolute value of Δ ε is increased, an alkoxy group is preferred. The group or the alkenyloxy group is more preferably an alkoxy group, and R X12 is preferably an alkyl group or an alkenyl group, and more preferably an alkyl group.
通式(XI)所表示之化合物具體而言較佳為以下所記載之式(XI-1-1)~式(XI-2-4)所表示之化合物,
但更佳為式(XI-1-1)~式(XI-1-4)、式(XI-2-1)及式(XI-2-2)所表示之化合物,進而較佳為式(XI-1-1)、式(XI-1-3)、式(XI-1-2)及式(XI-2-2)所表示之化合物,尤佳為式(XI-1-1)、式(XI-1-3)及式(XI-2-1)所表示之化合物,若更具體地進行敍述,則於本案發明之液晶組成物所要求之折射率各向異性△n之值相對低之情形(大致未達0.100)時,最佳為式(XI-1-1)及式(XI-1-3)所表示之化合物,於所要求之折射率各向異性
△n之值相對高之情形(大致0.100以上)時,最佳為式(XI-2-1)所表示之化合物。於通式(XI)所表示之化合物具有烯基之情形時,具體而言較佳為選自以下所記載之式(XI-1-10)~式(XI-2-11)所表示之群之化合物,
(式中,RX22 表示與通式(XI-2)中之RX22 相同之含義)。(wherein R X22 represents the same meaning as R X22 in the formula (XI-2)).
進而,通式(X)所表示之化合物較佳為通式(XII)所表示之化合物。Further, the compound represented by the formula (X) is preferably a compound represented by the formula (XII).
(式中,RX1 表示與通式(X)中之RX1 相同之含義,MX2 表示與通式(X)中之MX2 相同之含義,RX2 表示與通式(X)中之RX2 相同之含義)(Wherein, R and X1 represents formula (X) R is the same in the meaning of X1, M X2 represents the same meaning as in the general formula (X) M X2, R X2 represents in the general formula (X) R The same meaning of X2 )
含有通式(XII)所表示之化合物之情形時之較佳之含量之 下限值係相對於本發明之液晶組成物之總量,例如於本發明之另一實施形態中為5%。或於本發明之另一實施形態中為10%。又,於本發明之另一實施形態中為15%。又,於本發明之另一實施形態中為20%。進而,於本發明之另一實施形態中為30%。a preferred content in the case of containing a compound represented by the formula (XII) The lower limit is 5% with respect to the total amount of the liquid crystal composition of the present invention, for example, in another embodiment of the present invention. Or in another embodiment of the present invention, it is 10%. Further, in another embodiment of the present invention, it is 15%. Further, in another embodiment of the present invention, it is 20%. Further, in another embodiment of the present invention, it is 30%.
進而,較佳之含量之上限值係相對於本發明之液晶組成物之總量,例如於本發明之另一實施形態中為55%。進而,於本發明之另一實施形態中為45%。進而,於本發明之另一實施形態中為35%。Further, the upper limit of the preferable content is 55% based on the total amount of the liquid crystal composition of the present invention, for example, in another embodiment of the present invention. Further, in another embodiment of the present invention, it is 45%. Further, in another embodiment of the present invention, it is 35%.
進而,較佳之含量之範圍係相對於本發明之液晶組成物之總量,例如於本發明之一實施形態中為5~55%。或於本發明之另一實施形態中為5~50%。或於本發明之另一實施形態中為10~45%。又,於本發明之另一實施形態中為15~40%。又,於本發明之另一實施形態中為20~40%,又,於本發明之另一實施形態中為25~40%。Further, the preferred content range is from 5 to 55% based on the total amount of the liquid crystal composition of the present invention, for example, in one embodiment of the present invention. Or in another embodiment of the present invention, it is 5 to 50%. Or in another embodiment of the present invention, it is 10 to 45%. Further, in another embodiment of the present invention, it is 15 to 40%. Further, in another embodiment of the present invention, it is 20 to 40%, and in another embodiment of the present invention, it is 25 to 40%.
於通式(XII)中,RX1 較佳為表示碳原子數1~8之烷基、碳原子數2~8之烯基、碳原子數1~8之烷氧基或碳原子數2~8之烯氧基,較佳為表示碳原子數1~8之烷基或碳原子數2~8之烯基,更佳為表示碳原子數1~8之烷基,進而較佳為表示碳原子數2~5之烷基,尤佳為表示碳原子數3~5之烷基,較佳為直鏈。In the formula (XII), R X1 preferably represents an alkyl group having 1 to 8 carbon atoms, an alkenyl group having 2 to 8 carbon atoms, an alkoxy group having 1 to 8 carbon atoms or a carbon number of 2~ The alkenyloxy group of 8 preferably represents an alkyl group having 1 to 8 carbon atoms or an alkenyl group having 2 to 8 carbon atoms, more preferably an alkyl group having 1 to 8 carbon atoms, and more preferably carbon. The alkyl group having 2 to 5 atomic atoms is particularly preferably an alkyl group having 3 to 5 carbon atoms, preferably a linear chain.
於通式(XII)中,RX2 較佳為表示碳原子數1~8之烷基、碳原子數2~8之烯基、碳原子數1~8之烷氧基或碳原子數2~8之烯氧基,較佳為表示碳原子數1~8之烷基或碳原子數1~8之烷氧基,更佳為表示碳原子數1~5之烷基或碳原子數1~4之烷氧基,進而較佳為碳原子數1~4之烷氧基,尤佳為表示碳原子數2或3之烷氧基,較佳為直鏈。In the formula (XII), R X2 preferably represents an alkyl group having 1 to 8 carbon atoms, an alkenyl group having 2 to 8 carbon atoms, an alkoxy group having 1 to 8 carbon atoms or 2 to 2 carbon atoms. The alkenyloxy group of 8 preferably represents an alkyl group having 1 to 8 carbon atoms or an alkoxy group having 1 to 8 carbon atoms, more preferably an alkyl group having 1 to 5 carbon atoms or 1 to 1 carbon atom. The alkoxy group of 4 is more preferably an alkoxy group having 1 to 4 carbon atoms, and particularly preferably an alkoxy group having 2 or 3 carbon atoms, preferably a straight chain.
於重視顯示元件之響應速度之改善之情形時,較佳為烯基,於重視電壓保持率等之可靠性之情形時,較佳為烷基。In the case where the improvement of the response speed of the display element is emphasized, the alkenyl group is preferred, and in the case where the reliability of the voltage holding ratio or the like is emphasized, the alkyl group is preferred.
通式(XII)所表示之化合物進而較佳為通式(XII-1)及通 式(XII-2)所表示之化合物。The compound represented by the formula (XII) is further preferably a compound of the formula (XII-1) and a compound represented by the formula (XII-2).
(式中,RX1 表示與通式(X)中之RX1 相同之含義,RX2 表示與通式(X)中之RX2 相同之含義)(Wherein, R and X1 represents formula (X) R is the same in the meaning of X1, X2 R represents general formula (X), X2 of the same meaning as R)
通式(XII-1)所表示之化合物具體而言較佳為以下所記載之式(XII-1-1)~(XII-1-6)所表示之化合物,
但更佳為式(XII-1-1)~式(XII-1-4)所表示之化合物,進而較佳為式(XII-1-1)~式(XII-1-3)所表示之化合物,尤佳為式(XII-1-1)及式(XII-1-3)所表示之化合物。More preferably, it is a compound represented by the formula (XII-1-1) to the formula (XII-1-4), and further preferably represented by the formula (XII-1-1) to the formula (XII-1-3). The compound is particularly preferably a compound represented by the formula (XII-1-1) and the formula (XII-1-3).
於通式(XII-1)所表示之化合物具有烯基之情形時,具體而言較佳為以下所記載之式(XII-1-10)~(XII-1-13)所表示之化合物,[化22]
(式中,RX2 表示與通式(X)中之RX2 相同之含義)。(wherein R X2 represents the same meaning as R X2 in the formula (X)).
通式(XII-2)所表示之化合物具體而言較佳為以下所記載之式(XII-2-1)~(XII-2-6)所表示之化合物,
但更佳為式(XII-2-1)~式(XII-2-4)所表示之化合物,進而較佳為式(XII-2-1)~式(XII-2-3)所表示之化合物,尤佳為式(XII-2-1)及式(XII-2-3)所表示之化合物。More preferably, it is a compound represented by the formula (XII-2-1) to the formula (XII-2-4), and further preferably represented by the formula (XII-2-1) to the formula (XII-2-3). The compound is particularly preferably a compound represented by the formula (XII-2-1) and the formula (XII-2-3).
於通式(XII-2)所表示之化合物具有烯基之情形時,具體而言較佳為以下所記載之式(XII-2-10)~(XII-2-13)所表示之化合物,[化24]
(式中,RX2 表示與通式(X)中之RX2 相同之含義)。(wherein R X2 represents the same meaning as R X2 in the formula (X)).
可組合之化合物之種類並無特別限制,根據低溫下之溶解性、轉移溫度、電性可靠性、雙折射率等所期望之性能而適當組合使用。使用之化合物之種類例如於本發明之一實施形態中為1種。或於本發明之另一實施形態中為2種。又,於本發明之另一實施形態中為3種。進而,於本發明之另一實施形態中為4種。進而,於本發明之另一實施形態中為5種。進而,於本發明之另一實施形態中為6種以上。The type of the compound which can be combined is not particularly limited, and may be appropriately combined and used depending on the desired properties such as solubility at low temperature, transfer temperature, electrical reliability, and birefringence. The type of the compound to be used is, for example, one of the embodiments of the present invention. Or in another embodiment of the present invention, there are two types. Further, in another embodiment of the present invention, there are three types. Further, in another embodiment of the present invention, there are four types. Further, in another embodiment of the present invention, there are five types. Further, in another embodiment of the present invention, it is six or more.
於使用通式(XII)所表示之化合物之4種以上之情形時,較佳為組合使用式(XII-2-1)~式(XII-2-4)所表示之化合物,式(XII-2-1)~式(XII-2-4)所表示之化合物之含量較佳為通式(XII)所表示之化合物中之40質量%以上,更佳為50質量%以上。When four or more kinds of the compounds represented by the formula (XII) are used, it is preferred to use a compound represented by the formula (XII-2-1) to the formula (XII-2-4) in combination, and the formula (XII-) The content of the compound represented by the formula (XII-2-4) is preferably 40% by mass or more, and more preferably 50% by mass or more based on the compound represented by the formula (XII).
較佳之含量之範圍較佳為40質量%以上且70質量%以下。The range of the preferable content is preferably 40% by mass or more and 70% by mass or less.
於使用通式(XII)所表示之化合物之3種之情形時,較佳為組合使用式(XII-2-1)~式(XII-2-3)所表示之化合物,式(XII-2-1)~式(XII-2-3)所表示之化合物之含量較佳為通式(XII)所表示之化合物中之40質量%以上,更佳為50質量%以上。When three kinds of the compounds represented by the formula (XII) are used, it is preferred to use a compound represented by the formula (XII-2-1) to the formula (XII-2-3) in combination, and the formula (XII-2) The content of the compound represented by the formula (XII-2-3) is preferably 40% by mass or more, and more preferably 50% by mass or more based on the compound represented by the formula (XII).
較佳之含量之範圍較佳為40質量%以上且70質量%以下,更佳為50質量%以上且70質量%以下。The range of the preferable content is preferably 40% by mass or more and 70% by mass or less, and more preferably 50% by mass or more and 70% by mass or less.
於使用通式(XII)所表示之化合物之2種之情形時,較佳為組合使用式(XII-2-1)~式(XII-2-2)所表示之化合物,式(XII-2-1)~式(XII-2-2)所表示之化合物之含量較佳為通式(XII)所表示之化合物中之40質量%以上,更佳為50質量%以上。When two kinds of the compounds represented by the formula (XII) are used, it is preferred to use a compound represented by the formula (XII-2-1) to the formula (XII-2-2) in combination, and the formula (XII-2) The content of the compound represented by the formula (XII-2-2) is preferably 40% by mass or more, and more preferably 50% by mass or more based on the compound represented by the formula (XII).
較佳之含量之範圍較佳為40質量%以上且70質量%以下,更佳為50質量%以上且80質量%以下。The range of the preferable content is preferably 40% by mass or more and 70% by mass or less, and more preferably 50% by mass or more and 80% by mass or less.
進而,通式(X)所表示之化合物較佳為通式(XIII)所表示之化合物。Further, the compound represented by the formula (X) is preferably a compound represented by the formula (XIII).
(式中,RX1 表示與通式(X)中之RX1 相同之含義,MX31 表示與通式(X)中之MX1 相同之含義,RX2 表示與通式(X)中之RX2 相同之含義,W表示0或1,X31 ~X36 表示氫原子或氟原子,X31 及X32 之組合、X33 及X34 之組合、X35 及X36 之組合中之至少1組之組合均為氟原子。其中,式(XIII-1-2)或式(XIII-1-4)所表示之化合物除外)(wherein R X1 represents the same meaning as R X1 in the formula (X), M X31 represents the same meaning as M X1 in the formula (X), and R X2 represents R in the formula (X) X2 has the same meaning, W represents 0 or 1, X 31 ~ X 36 represents a hydrogen atom or a fluorine atom, a combination of X 31 and X 32 , a combination of X 33 and X 34 , and a combination of X 35 and X 36 The combination of the groups is a fluorine atom, wherein the compound represented by the formula (XIII-1-2) or the formula (XIII-1-4) is excluded)
可組合之化合物之種類並無特別限制,根據低溫下之溶解性、轉移溫度、電性可靠性、雙折射率等所期望之性能而適當組合使用。使用之化合物之種類例如於本發明之一實施形態中為1種。或於本發明之另一實施形態中為2種。又,於本發明之另一實施形態中為3種。進而,於本發明之另一實施形態中為4種。進而,於本發明之另一實施形態中為5種以上。The type of the compound which can be combined is not particularly limited, and may be appropriately combined and used depending on the desired properties such as solubility at low temperature, transfer temperature, electrical reliability, and birefringence. The type of the compound to be used is, for example, one of the embodiments of the present invention. Or in another embodiment of the present invention, there are two types. Further, in another embodiment of the present invention, there are three types. Further, in another embodiment of the present invention, there are four types. Further, in another embodiment of the present invention, it is five or more.
關於含有通式(XIII)所表示之化合物之情形時之較佳之含量之下限值,於存在下限值之情形時,相對於本發明之液晶組成物之總量,例如於本發明之一實施形態中為1%。或於本發明之另一實施形態中為3%。 或於本發明之另一實施形態中為5%。又,於本發明之另一實施形態中為8%。又,於本發明之另一實施形態中為10%。另一方面,為不存在下限值之實施形態,即為0%。With respect to the lower limit of the content of the compound containing the compound represented by the formula (XIII), in the case where the lower limit is present, for example, one of the present invention is relative to the total amount of the liquid crystal composition of the present invention. In the embodiment, it is 1%. Or in another embodiment of the present invention, it is 3%. Or in another embodiment of the present invention, it is 5%. Further, in another embodiment of the present invention, it is 8%. Further, in another embodiment of the present invention, it is 10%. On the other hand, in the embodiment in which the lower limit value is not present, it is 0%.
進而,較佳之含量之上限值係相對於本發明之液晶組成物之總量,例如於本發明之另一實施形態中為28%。進而,於本發明之另一實施形態中為20%。進而,於本發明之另一實施形態中為15%。Further, the upper limit of the preferable content is the total amount of the liquid crystal composition of the present invention, for example, 28% in another embodiment of the present invention. Further, in another embodiment of the present invention, it is 20%. Further, in another embodiment of the present invention, it is 15%.
較佳之含量之範圍係相對於本發明之液晶組成物之總量,例如於本發明之一實施形態中為1~25%。或於本發明之另一實施形態中為3~20%。或於本發明之另一實施形態中為5~15%。The preferred content range is from 1 to 25%, based on the total amount of the liquid crystal composition of the present invention, for example, in one embodiment of the present invention. Or in another embodiment of the present invention, it is 3 to 20%. Or in another embodiment of the present invention, it is 5 to 15%.
於通式(XIII)中,RX1 及RX2 較佳為分別獨立地表示碳原子數1~8之烷基、碳原子數2~8之烯基、碳原子數1~8之烷氧基或碳原子數2~8之烯氧基,較佳為表示碳原子數1~8之烷基或碳原子數2~8之烯基,更佳為表示碳原子數1~8之烷基,進而較佳為表示碳原子數2~5之烷基,尤佳為表示碳原子數3~5之烷基,R1 及R2 之碳原子數最佳為各不同,較佳為直鏈。In the formula (XIII), R X1 and R X2 each independently represent an alkyl group having 1 to 8 carbon atoms, an alkenyl group having 2 to 8 carbon atoms, and an alkoxy group having 1 to 8 carbon atoms. Or an alkenyloxy group having 2 to 8 carbon atoms, preferably an alkyl group having 1 to 8 carbon atoms or an alkenyl group having 2 to 8 carbon atoms, more preferably an alkyl group having 1 to 8 carbon atoms. Further, it is preferably an alkyl group having 2 to 5 carbon atoms, more preferably an alkyl group having 3 to 5 carbon atoms, and the number of carbon atoms of R 1 and R 2 is preferably different, and is preferably linear.
於通式(XIII)中,X31 ~X36 較佳為分別獨立地表示氫原子或氟原子,較佳為2~5個表示氟原子,更佳為2~4個表示氟原子,更佳為2~3個表示氟原子,進而較佳為2個表示氟原子。In the formula (XIII), X 31 to X 36 preferably each independently represent a hydrogen atom or a fluorine atom, preferably 2 to 5 represent a fluorine atom, more preferably 2 to 4 represent a fluorine atom, more preferably Two to three are fluorine atoms, and more preferably two are fluorine atoms.
於此情形時,於氟原子為2個之情形時,較佳為X33 ~X36 中之任2個表示氟原子,較佳為X33 及X34 之組合均表示氟原子,或X35 及X36 之組合均表示氟原子,進而較佳為X33 及X34 之組合均表示氟原子。於氟原子為3個以上之情形時,較佳為至少X33 及X34 之組合均表示氟原子,或至少X35 及X36 之組合均表示氟原子,進而較佳為至少X33 及X34 之組合均表示氟原子。In this case, when two fluorine atoms are present, it is preferred that any two of X 33 to X 36 represent a fluorine atom, and preferably a combination of X 33 and X 34 represents a fluorine atom, or X 35 . The combination of X and 36 represents a fluorine atom, and further preferably a combination of X 33 and X 34 represents a fluorine atom. When the number of fluorine atoms is three or more, it is preferred that at least a combination of X 33 and X 34 represents a fluorine atom, or at least a combination of X 35 and X 36 represents a fluorine atom, and more preferably at least X 33 and X. The combination of 34 represents a fluorine atom.
於通式(XIII)中,MX31 較佳為表示1,4-伸環己基、1,4-伸苯 基或四氫吡喃-2,5-二基,但於在使用該液晶組成物而製作之顯示元件及液晶顯示器中重視響應速度之情形時,較佳為表示1,4-伸苯基或四氫吡喃-2,5-二基,更佳為表示1,4-伸苯基。於重視驅動電壓之情形時,較佳為表示1,4-伸苯基或四氫吡喃-2,5-二基,更佳為表示四氫吡喃-2,5-二基。於重視動作溫度範圍之情形即必需為較高之動作溫度範圍之情形時,較佳為表示1,4-伸環己基或四氫吡喃-2,5-二基,更佳為表示1,4-伸環己基。於表示1,4-伸苯基之情形時,苯環中之1個以上之氫原子亦可經氟原子取代,但較佳為未經取代、1個經取代或2個經取代,於2個經取代之情形時,較佳為表示2,3-二氟苯-1,4-二基。In the formula (XIII), M X31 preferably represents a 1,4-cyclohexylene group, a 1,4-phenylene group or a tetrahydropyran-2,5-diyl group, but the liquid crystal composition is used. When the display element and the liquid crystal display are made to have a response speed, it is preferably 1,4-phenyl or tetrahydropyran-2,5-diyl, more preferably 1,4-phenylene. base. When the driving voltage is emphasized, it is preferably a 1,4-phenylene group or a tetrahydropyran-2,5-diyl group, and more preferably a tetrahydropyran-2,5-diyl group. When it is necessary to have a higher operating temperature range in the case where the operating temperature range is important, it preferably represents 1,4-cyclohexylene or tetrahydropyran-2,5-diyl, and more preferably represents 1, 4-stretched cyclohexyl. When 1,4-phenylene is present, one or more hydrogen atoms in the benzene ring may be substituted by a fluorine atom, but it is preferably unsubstituted, 1 substituted or 2 substituted, at 2 In the case of substitution, it preferably represents 2,3-difluorobenzene-1,4-diyl.
於通式(XIII)中,W表示0或1,但於重視響應速度之情形時,較佳為表示0,於重視動作溫度範圍之情形即必需為較高之動作溫度範圍之情形時,較佳為表示1。In the general formula (XIII), W represents 0 or 1, but when the response speed is emphasized, it is preferably 0, and when the operating temperature range is important, it is necessary to have a higher operating temperature range. Jia Wei said 1.
通式(XIII)所表示之化合物較佳為以下所記載之通式(XIII-1)~(XIII-43)所表示之化合物,
[化27]
(式中,RX1 表示與通式(X)中之RX1 相同之含義,RX2 表示與通式(X)中之RX2 相同之含義),較佳為通式(XIII-1)~(XIII-10)、(XIII-12)、(XIII-20)、(XIII-22)、(XIII-40)及(XIII-42)所表示之化合物, 較佳為通式(XIII-1)、(XIII-2)、(XIII-10)、(XIII-12)、(XIII-20)、(XIII-22)、(XIII-40)及(XIII-42)所表示之化合物,較佳為通式(XIII-1)及(XIII-2)所表示之化合物,進而較佳為通式(XIII-1)所表示之化合物。(Wherein, R and X1 represents formula (X) R is the same in the meaning of X1, X2 R represents general formula (X), X2 of the same meaning as R), preferably the general formula (XIII-1) ~ The compound represented by (XIII-10), (XIII-12), (XIII-20), (XIII-22), (XIII-40) and (XIII-42), preferably of the formula (XIII-1) a compound represented by (XIII-2), (XIII-10), (XIII-12), (XIII-20), (XIII-22), (XIII-40) and (XIII-42), preferably The compound represented by the formula (XIII-1) and (XIII-2) is more preferably a compound represented by the formula (XIII-1).
通式(XIII-1)所表示之化合物具體而言較佳為式(XIII-1-1)~式(XIII-1-16)所表示之化合物。The compound represented by the formula (XIII-1) is specifically preferably a compound represented by the formula (XIII-1-1) to the formula (XIII-1-16).
上述化合物之中,較佳為式(XIII-1-1)~式(XIII-1-6)所表示之化合物,較佳為式(XIII-1-1)所表示之化合物。Among the above compounds, a compound represented by the formula (XIII-1-1) to the formula (XIII-1-6) is preferred, and a compound represented by the formula (XIII-1-1) is preferred.
通式(XIII)中之RX1 及RX2 分別獨立地表示碳原子數1~8之烷基、碳原子數2~8之烯基、碳原子數1~8之烷氧基或碳原子數2~8之烯氧基,但較佳為表示碳原子數1~8之烷基或碳原子數2~8之烯基,更佳為表示碳原子數2~5之烷基或碳原子數2~5之烯基,進而較佳為表示碳原子數2~5之烷基,較佳為直鏈,於RX1 及RX2 均為烷基之情形時,較佳為各自之碳原子數不同。R X1 and R X2 in the formula (XIII) each independently represent an alkyl group having 1 to 8 carbon atoms, an alkenyl group having 2 to 8 carbon atoms, an alkoxy group having 1 to 8 carbon atoms or a carbon number. 2 to 8 of the alkenyloxy group, preferably an alkyl group having 1 to 8 carbon atoms or an alkenyl group having 2 to 8 carbon atoms, more preferably an alkyl group having 2 to 5 carbon atoms or a carbon number. The alkenyl group of 2 to 5 is further preferably an alkyl group having 2 to 5 carbon atoms, preferably a straight chain. When R X1 and R X2 are both alkyl groups, it is preferred that the number of carbon atoms is the same. different.
若進一步進行詳細敍述,則較佳為RX1 表示丙基且RX2 表示乙基之化合物或RX1 表示丁基且RX2 表示乙基之化合物。More specifically, R X1 represents a propyl group and R X2 represents an ethyl compound or R X1 represents a butyl group and R X2 represents an ethyl group.
進而,可含有通式(C)所表示之化合物。Further, a compound represented by the formula (C) may be contained.
(式中,R100 表示碳原子數1~5之烷基、碳原子數2~5之烯基、碳原子數1~4之烷氧基,X100 ~X101 獨立地表示氫原子或氟原子,Y100 表示氟原子或-OCF3 )(wherein R 100 represents an alkyl group having 1 to 5 carbon atoms, an alkenyl group having 2 to 5 carbon atoms, an alkoxy group having 1 to 4 carbon atoms, and X 100 to X 101 independently represent a hydrogen atom or fluorine. Atom, Y 100 represents a fluorine atom or -OCF 3 )
R100 較佳為碳原子數3之烷基。X100 ~X101 較佳為氟原子。Y100 較佳為氟原子。R 100 is preferably an alkyl group having 3 carbon atoms. X 100 to X 101 are preferably a fluorine atom. Y 100 is preferably a fluorine atom.
較佳之含量之範圍為0~10質量%,或為2~8質量%,為3~7質量%。A preferred content range is from 0 to 10% by mass, or from 2 to 8% by mass, and from 3 to 7% by mass.
本發明之液晶組成物係可於寬範圍內使用向列相各向同性液體相轉移溫度(Tni )者,但較佳為60~120℃,更佳為70~100℃,尤佳為70~90℃。The liquid crystal composition of the present invention can be used in a wide range of nematic liquid isotropic liquid phase transition temperature (T ni ), but is preferably 60 to 120 ° C, more preferably 70 to 100 ° C, and particularly preferably 70. ~90 ° C.
本發明之液晶組成物係以式(i)及、式(XIII-1-2)或式(XIII-1-4)之化合物為必需成分,作為更佳之態樣,可含有通式(L)、通 式(X)所表示之化合物。於此情形時,含量較佳為以下所記載之含量。The liquid crystal composition of the present invention is a compound of the formula (i) and the formula (XIII-1-2) or the formula (XIII-1-4) as an essential component, and as a more preferable aspect, the formula (L) may be contained. ,through a compound represented by the formula (X). In this case, the content is preferably the content described below.
於含有式(i)、式(XIII-1-2)、式(XIII-1-4)及通式(L)所表示之化合物之情形時,該等化合物之合計含量較佳為40質量%~80質量%,更佳為42~75質量%,進而較佳為45~70質量%,尤佳為50質量%~68質量%,最佳為50~65質量%。In the case of containing a compound represented by the formula (i), the formula (XIII-1-2), the formula (XIII-1-4) and the formula (L), the total content of the compounds is preferably 40% by mass. ~80% by mass, more preferably 42 to 75% by mass, further preferably 45 to 70% by mass, particularly preferably 50% by mass to 68% by mass, most preferably 50 to 65% by mass.
於含有式(i)、式(XIII-1-2)、式(XIII-1-4)及通式(X)所表示之化合物之情形時,該等化合物之合計含量較佳為40~90質量%,更佳為45~90質量%,進而較佳為47質量%~88質量%,尤佳為50~85質量%,最佳為53~85質量%。In the case of the compound represented by the formula (i), the formula (XIII-1-2), the formula (XIII-1-4) and the formula (X), the total content of the compounds is preferably from 40 to 90. The mass % is more preferably 45 to 90% by mass, further preferably 47% by mass to 88% by mass, particularly preferably 50 to 85% by mass, most preferably 53 to 85% by mass.
於含有式(i)、式(II-b)、通式(L)及通式(X)所表示之化合物之情形時,該等化合物之合計含量較佳為60~100質量%,更佳為63~100質量%,進而較佳為70~100質量%,尤佳為75~100質量%。When the compound represented by the formula (i), the formula (II-b), the formula (L) and the formula (X) is contained, the total content of the compounds is preferably from 60 to 100% by mass, more preferably It is 63 to 100% by mass, more preferably 70 to 100% by mass, and particularly preferably 75 to 100% by mass.
於通式(L)為通式(II-a)、或通式(I-a)所表示之化合物之情形時,較佳以下所記載之含量。When the formula (L) is a compound represented by the formula (II-a) or the formula (I-a), the content described below is preferred.
於含有式(i)、式(XIII-1-2)、式(XIII-1-4)、通式(II-a)、通式(I-a)及通式(X)所表示之化合物之情形時,該等化合物之合計含量較佳為80~100質量%,更佳為85~100質量%,進而較佳為90質量%~100質量%,尤佳為95~100質量%。In the case of a compound represented by the formula (i), the formula (XIII-1-2), the formula (XIII-1-4), the formula (II-a), the formula (Ia) and the formula (X) The total content of the compounds is preferably from 80 to 100% by mass, more preferably from 85 to 100% by mass, still more preferably from 90% by mass to 100% by mass, even more preferably from 95 to 100% by mass.
本案發明中使用之化合物於要求液晶組成物之化學穩定性之情形時,較佳為於其分子內不具有氯原子。進而,液晶組成物內具有氯原子之化合物較佳為5%以下,較佳為3%以下,較佳為1%以下,較佳為0.5%以下,較佳為實質上不含有。所謂實質上不含有,意指僅未意圖含有作為化合物製造時之雜質而生成之化合物等而含有氯原子之化合物混入至液晶組成物中。When the compound used in the invention of the present invention requires chemical stability of the liquid crystal composition, it is preferred that the compound does not have a chlorine atom in its molecule. Further, the compound having a chlorine atom in the liquid crystal composition is preferably 5% or less, preferably 3% or less, preferably 1% or less, preferably 0.5% or less, and preferably substantially not contained. The term "substantially not contained" means that a compound containing a chlorine atom, which is not intended to contain a compound produced as an impurity in the production of a compound, is mixed into the liquid crystal composition.
本案發明中使用之化合物於分子內不具有過酸(-CO-OO-) 結構。又,於重視液晶組成物之可靠性及長期穩定性之情形時,較佳為不使用具有氰基或羰基之化合物。又,於重視利用UV(Ultraviolet,紫外線)照射之穩定性之情形時,較為理想的是不使用氯原子經取代之化合物。亦較佳為僅分子內之環結構全部為六員環之化合物。The compound used in the invention of the present invention does not have a peracid in the molecule (-CO-OO-) structure. Further, in the case where the reliability and long-term stability of the liquid crystal composition are emphasized, it is preferred not to use a compound having a cyano group or a carbonyl group. Further, in the case where the stability of UV (Ultraviolet) irradiation is emphasized, it is preferred that a compound substituted with a chlorine atom is not used. It is also preferred that only the intramolecular ring structure is a compound having a six-membered ring.
本發明之液晶組成物之介電各向異性△ε之值於25℃下較佳為-2.0至-6.0,更佳為-2.5至-5.0,尤佳為-2.5至-4.0,若進一步進行詳細敍述,則於重視響應速度之情形時,較佳為-2.5~-3.4,於重視驅動電壓之情形時,較佳為-3.4~-4.0。The value of the dielectric anisotropy Δ ε of the liquid crystal composition of the present invention is preferably -2.0 to -6.0, more preferably -2.5 to -5.0, still more preferably -2.5 to -4.0 at 25 ° C, if further In detail, when the response speed is emphasized, it is preferably -2.5 to -3.4, and when the driving voltage is emphasized, it is preferably -3.4 to -4.0.
本發明之液晶組成物之折射率各向異性△n之值於25℃下較佳為0.08至0.13,更佳為0.09至0.12。若進一步進行詳細敍述,則於與較薄之單元間隙對應之情形時,較佳為0.10至0.12,於與較厚之單元間隙對應之情形時,較佳為0.08至0.10。The value of the refractive index anisotropy Δn of the liquid crystal composition of the present invention is preferably from 0.08 to 0.13, more preferably from 0.09 to 0.12 at 25 °C. More detailed, it is preferably 0.10 to 0.12 in the case of a thinner cell gap, and preferably 0.08 to 0.10 in the case of a thicker cell gap.
本發明之液晶組成物之旋轉黏度(γ1 )較佳為150以下,更佳為130以下,尤佳為120以下。The rotational viscosity (γ 1 ) of the liquid crystal composition of the present invention is preferably 150 or less, more preferably 130 or less, and still more preferably 120 or less.
於本發明之液晶組成物中,較佳為作為旋轉黏度與折射率各向異性之函數Z表示特定之值。In the liquid crystal composition of the present invention, it is preferred that the function Z as a function of rotational viscosity and refractive index anisotropy represents a specific value.
(式中,γ1 表示旋轉黏度,△n表示折射率各向異性)(wherein γ 1 represents rotational viscosity and Δn represents refractive index anisotropy)
Z較佳為13000以下,更佳為12000以下,尤佳為11000以下。Z is preferably 13,000 or less, more preferably 12,000 or less, and still more preferably 11,000 or less.
本發明之液晶組成物於主動矩陣顯示元件中使用之情形時,必需具有1012 (Ω.m)以上之比電阻,較佳為1013 (Ω.m),更佳為1014 (Ω.m)以上。When the liquid crystal composition of the present invention in the case of using the active matrix display element is necessary to have 10 12 (Ω.m) The above specific resistance is preferably 10 13 (Ω.m), more preferably of 10 14 (Ω. m) above.
本發明之液晶組成物除上述化合物以外,根據用途亦可含有通常之向列液晶、層列型液晶、膽固醇狀液晶、抗氧化劑、紫外線吸收劑、聚合性單體等。The liquid crystal composition of the present invention may contain, in addition to the above compounds, a usual nematic liquid crystal, a smectic liquid crystal, a cholesteric liquid crystal, an antioxidant, an ultraviolet absorber, a polymerizable monomer, or the like, depending on the application.
作為聚合性單體,較佳為通式(P)所表示之官能單體,
(式中,X7 及X8 分別獨立地表示氫原子或甲基,Sp1 及Sp2 分別獨立地表示單鍵、碳原子數1~8之伸烷基或-O-(CH2 )s -(式中,s表示2至7之整數,設為氧原子鍵結於芳香環上者),Z2 表示-OCH2 -、-CH2 O-、-COO-、-OCO-、-CF2 O-、-OCF2 -、-CH2 CH2 -、-CF2 CF2 -、-CH=CH-COO-、-CH=CH-OCO-、-COO-CH=CH-、-OCO-CH=CH-、-COO-CH2 CH2 -、-OCO-CH2 CH2 -、-CH2 CH2 -COO-、-CH2 CH2 -OCO-、-COO-CH2 -、-OCO-CH2 -、-CH2 -COO-、-CH2 -OCO-、-CY1 =CY2 -(式中,Y1 及Y2 分別獨立地表示氟原子或氫原子)、-C≡C-或單鍵,B表示1,4-伸苯基、反式-1,4-伸環己基或單鍵,式中之所有1,4-伸苯基中,任意之氫原子亦可經氟原子取代)。(wherein, X 7 and X 8 each independently represent a hydrogen atom or a methyl group, and Sp 1 and Sp 2 each independently represent a single bond, an alkylene group having 1 to 8 carbon atoms or -O-(CH 2 ) s - (wherein, s represents an integer from 2 to 7, which is set to the oxygen atom bonded to the aromatic ring), and Z 2 represents -OCH 2 -, -CH 2 O-, -COO-, -OCO-, -CF 2 O-, -OCF 2 -, -CH 2 CH 2 -, -CF 2 CF 2 -, -CH=CH-COO-, -CH=CH-OCO-, -COO-CH=CH-, -OCO- CH=CH-, -COO-CH 2 CH 2 -, -OCO-CH 2 CH 2 -, -CH 2 CH 2 -COO-, -CH 2 CH 2 -OCO-, -COO-CH 2 -, -OCO -CH 2 -, -CH 2 -COO-, -CH 2 -OCO-, -CY 1 =CY 2 - (wherein Y 1 and Y 2 each independently represent a fluorine atom or a hydrogen atom), -C≡C - or a single bond, B represents 1,4-phenylene, trans-1,4-cyclohexylene or a single bond, in all 1,4-phenylene groups of the formula, any hydrogen atom may also be fluorine Atomic substitution).
亦較佳為X7 及X8 中之任一者表示氫原子之二丙烯酸酯衍生物、任一者具有甲基之二甲基丙烯酸酯衍生物中之任一者,亦較佳為一者表示氫原子且另一者表示甲基之化合物。該等化合物之聚合速度係二丙烯酸酯衍生物最快,二甲基丙烯酸酯衍生物較慢,非對稱化合物位於其中間,可根據其用途而使用較佳之態樣。於PSA(Polymer sustained alignment,聚合物穩定配向)顯示元件中,尤佳為二甲基丙烯酸酯衍生物。It is also preferred that any one of X 7 and X 8 represents a diacrylate derivative of a hydrogen atom, and any one of them has a methyl dimethacrylate derivative, and is preferably one. A compound which represents a hydrogen atom and the other represents a methyl group. The polymerization rate of these compounds is the fastest in the diacrylate derivative, the dimethacrylate derivative is slow, and the asymmetric compound is in the middle thereof, and the preferred aspect can be used depending on the use thereof. Among the PSA (Polymer sustained alignment) display elements, a dimethacrylate derivative is particularly preferred.
Sp1 及Sp2 分別獨立地表示單鍵、碳原子數1~8之伸烷基或-O-(CH2 )s -,但較佳為於PSA顯示元件中至少一者為單鍵,較佳為兩者均表 示單鍵之化合物或一者表示單鍵且另一者表示碳原子數1~8之伸烷基或-O-(CH2 )s -之態樣。於此情形時,較佳為1~4之烷基,s較佳為1~4。Sp 1 and Sp 2 each independently represent a single bond, an alkylene group having 1 to 8 carbon atoms or -O-(CH 2 ) s -, but it is preferred that at least one of the PSA display elements is a single bond. Preferably, both of them represent a single bond compound or one represents a single bond and the other represents an alkylene group having 1 to 8 carbon atoms or -O-(CH 2 ) s -. In this case, it is preferably an alkyl group of 1 to 4, and s is preferably 1 to 4.
Z1 較佳為-OCH2 -、-CH2 O-、-COO-、-OCO-、-CF2 O-、-OCF2 -、-CH2 CH2 -、-CF2 CF2 -或單鍵,更佳為-COO-、-OCO-或單鍵,尤佳為單鍵。Z 1 is preferably -OCH 2 -, -CH 2 O-, -COO-, -OCO-, -CF 2 O-, -OCF 2 -, -CH 2 CH 2 -, -CF 2 CF 2 - or The key is more preferably -COO-, -OCO- or a single bond, and particularly preferably a single bond.
B表示任意之氫原子可經氟原子取代之1,4-伸苯基、反式-1,4-伸環己基或單鍵,但較佳為1,4-伸苯基或單鍵。於C表示單鍵以外之環結構之情形時,Z2 亦較佳為單鍵以外之連結基,於C為單鍵之情形時,Z1 較佳為單鍵。B represents a 1,4-phenylene group, a trans-1,4-cyclohexylene group or a single bond in which any hydrogen atom may be substituted by a fluorine atom, but is preferably a 1,4-phenylene group or a single bond. In the case where C represents a ring structure other than a single bond, Z 2 is also preferably a linking group other than a single bond. When C is a single bond, Z 1 is preferably a single bond.
就該等方面而言,於通式(P)中,Sp1 及Sp2 間之環結構具體而言較佳為以下所記載之結構。In these terms, in the general formula (P), the ring structure between Sp 1 and Sp 2 is specifically preferably the structure described below.
於通式(P)中,C表示單鍵,於環結構由兩個環形成之情形時,較佳為表示下式(Pa-1)至式(Pa-5),
(式中,設為兩端鍵結於Sp1 或Sp2 上者)(in the formula, the two ends are bonded to Sp 1 or Sp 2 )
更佳為表示式(Pa-1)至式(Pa-3),尤佳為表示式(Pa-1)。More preferably, it is a formula (Pa-1) to a formula (Pa-3), and particularly preferably a formula (Pa-1).
包含該等骨架之聚合性化合物之聚合後之配向限制力對於PSA型液晶顯示元件而言最佳,可獲得良好之配向狀態,故而抑制顯示不 均,或完全不產生顯示不均。The alignment control force after polymerization of the polymerizable compound containing the skeleton is optimal for the PSA type liquid crystal display device, and a good alignment state can be obtained, so that the display is not suppressed. None, or no display unevenness at all.
根據以上內容,作為聚合性單體,尤佳為通式(Pa-1-1)~通式(Pa-1-4),其中最佳為通式(Pa-1-2)。From the above, as the polymerizable monomer, a formula (Pa-1-1) to a formula (Pa-1-4) is preferable, and among them, a formula (Pa-1-2) is preferred.
(式中,Sp2 表示碳原子數2至5之伸烷基)(wherein, Sp 2 represents an alkylene group having 2 to 5 carbon atoms)
於向本發明之液晶組成物中添加單體之情形時,即便於不存在聚合起始劑之情形時亦推進聚合,但為了促進聚合,亦可含有聚合起始劑。作為聚合起始劑,可列舉:安息香醚類、二苯甲酮類、苯乙酮類、苄基縮酮類、醯基氧化膦類等。又,為了提昇保存穩定性,亦可添加穩定劑。作為可使用之穩定劑,例如可列舉:對苯二酚類、對苯二酚單烷基醚類、第三丁基鄰苯二酚類、鄰苯三酚類、苯硫酚類、硝基化合物類、β-萘胺類、β-萘酚類、亞硝基化合物等。In the case where a monomer is added to the liquid crystal composition of the present invention, the polymerization is promoted even in the case where the polymerization initiator is not present, but a polymerization initiator may be contained in order to promote the polymerization. Examples of the polymerization initiator include benzoin ethers, benzophenones, acetophenones, benzyl ketals, and fluorenylphosphine oxides. Further, in order to improve storage stability, a stabilizer may be added. Examples of stabilizers that can be used include hydroquinones, hydroquinone monoalkyl ethers, tert-butyl catechols, pyrogallols, thiophenols, and nitro groups. Compounds, β-naphthylamines, β-naphthols, nitroso compounds, and the like.
本發明之液晶組成物進而可含有通式(Q)所表示之化合物。The liquid crystal composition of the present invention may further contain a compound represented by the formula (Q).
(式中,RQ 表示碳原子數1至22之直鏈烷基或支鏈烷基,該烷基中之1個或2個以上之CH2 基可以與氧原子不直接鄰接之方式經-O-、-CH=CH-、-CO-、-OCO-、-COO-、-C≡C-、-CF2 O-、-OCF2 -取代,MQ 表示反式-1,4-伸環己基、1,4-伸苯基或單鍵)(wherein R Q represents a linear alkyl group or a branched alkyl group having 1 to 22 carbon atoms, and one or more of the CH 2 groups in the alkyl group may be directly adjacent to the oxygen atom by - O-, -CH=CH-, -CO-, -OCO-, -COO-, -C≡C-, -CF 2 O-, -OCF 2 -substituted, M Q represents trans-1,4-extension Cyclohexyl, 1,4-phenyl or single bond)
RQ 表示碳原子數1至22之直鏈烷基或支鏈烷基,該烷基中之1個或2個以上之CH2 基可以與氧原子不直接鄰接之方式經-O-、-CH=CH-、-CO-、-OCO-、-COO-、-C≡C-、-CF2 O-、-OCF2 -取代,但較佳為碳原子數1至10之直鏈烷基、直鏈烷氧基、1個CH2 基經-OCO-或-COO-取代而成之直鏈烷基、支鏈烷基、分支烷氧基、1個CH2 基經-OCO-或-COO-取代而成之支鏈烷基,進而較佳為碳原子數1至20之直鏈烷基、1個CH2 基經-OCO-或-COO-取代而成之直鏈烷基、支鏈烷基、分支烷氧基、1個CH2 基經-OCO-或-COO-取代而成之支鏈烷基。MQ 表示反式-1,4-伸環己基、1,4-伸苯基或單鍵,但較佳為反式-1,4-伸環己基或1,4-伸苯基。R Q represents a linear alkyl group or a branched alkyl group having 1 to 22 carbon atoms, and one or more of the CH 2 groups in the alkyl group may be directly adjacent to the oxygen atom via -O-, - CH=CH-, -CO-, -OCO-, -COO-, -C≡C-, -CF 2 O-, -OCF 2 -, but preferably a linear alkyl group having 1 to 10 carbon atoms a straight chain alkyl group, a branched alkyl group, a branched alkoxy group, a CH 2 group via -OCO- or - substituted by a linear alkoxy group, a CH 2 group via -OCO- or -COO-. COO- made of substituted branched alkyl, and further preferred is a linear alkyl group having a carbon number of 1-20, a CH 2 group substituted by -COO- or -OCO- from the linear alkyl, branched A branched alkyl group obtained by substituting an alkyl group, a branched alkoxy group, or a CH 2 group with -OCO- or -COO-. M Q represents a trans-1,4-cyclohexylene group, a 1,4-phenylene group or a single bond, but is preferably a trans-1,4-cyclohexylene group or a 1,4-phenylene group.
通式(Q)所表示之化合物更具體而言較佳為下述通式(Q-a)至通式(Q-d)所表示之化合物。More specifically, the compound represented by the formula (Q) is preferably a compound represented by the following formula (Q-a) to formula (Q-d).
[化5]
式中,RQ1 較佳為碳原子數1至10之直鏈烷基或支鏈烷基,RQ2 較佳為碳原子數1至20之直鏈烷基或支鏈烷基,RQ3 較佳為碳原子數1至8之直鏈烷基、支鏈烷基、直鏈烷氧基或支鏈烷氧基,LQ 較佳為碳原子數1至8之直鏈伸烷基或支鏈伸烷基。於通式(Q-a)至通式(Q-d)所表示之化合物中,進而較佳為通式(Q-c)及通式(Q-d)所表示之化合物。於本案發明之液晶組成物中,較佳為含有通式(Q)所表示之化合物之1種或2種,進而較佳為含有1種至5種,其含量較佳為0.001至1質量%,進而較佳為0.001至0.1質量%,尤佳為0.001至0.05質量%。In the formula, R Q1 is preferably a linear alkyl group or a branched alkyl group having 1 to 10 carbon atoms, and R Q2 is preferably a linear alkyl group or a branched alkyl group having 1 to 20 carbon atoms, and R Q3 is more preferred. Preferably, it is a linear alkyl group having 1 to 8 carbon atoms, a branched alkyl group, a linear alkoxy group or a branched alkoxy group, and L Q is preferably a linear alkyl group or a branch having 1 to 8 carbon atoms. Chain alkyl. Among the compounds represented by the formula (Qa) to the formula (Qd), a compound represented by the formula (Qc) and the formula (Qd) is further preferred. In the liquid crystal composition of the invention, it is preferred to contain one or two kinds of the compounds represented by the formula (Q), more preferably one to five, and the content thereof is preferably from 0.001 to 1% by mass. Further, it is preferably 0.001 to 0.1% by mass, particularly preferably 0.001 to 0.05% by mass.
本發明之含有聚合性化合物之液晶組成物對液晶顯示元件較為有用,尤其對主動矩陣驅動用液晶顯示元件較為有用,可用於PSA模式、PSVA(Polymer sustained Vertical alignment,聚合物穩定垂直配向)模式、VA模式、IPS模式或ECB(Electrically Controlled Birefringence,電控雙折射)模式用液晶顯示元件。The liquid crystal composition containing a polymerizable compound of the present invention is useful for a liquid crystal display device, and is particularly useful for a liquid crystal display device for active matrix driving, and can be used in a PSA mode, a PSVA (Polymer Consumable Vertical Alignment) mode, Liquid crystal display element for VA mode, IPS mode or ECB (Electrically Controlled Birefringence) mode.
本發明之含有聚合性化合物之液晶組成物係藉由其所含有之聚合性化合物藉由紫外線照射而聚合而賦予液晶配向能,使用於利用液晶組成物之雙折射而控制光之透光量之液晶顯示元件。作為液晶顯示元件,對AM-LCD(Active Matrix-Liquid Crystal Display,主動矩陣液晶顯示元件)、TN(向列液晶顯示元件)、STN-LCD(超扭轉向列型液晶顯示元件)、OCB(Optically Compensated Bend-Liquid Crystal Display,光學補償彎曲液晶顯示元件)-LCD及IPS-LCD(共平面切換液晶顯示元件)較為有用,但對AM-LCD尤其有用,可使用於穿透型或反射型之液晶顯示元件。The liquid crystal composition containing a polymerizable compound of the present invention is polymerized by ultraviolet irradiation to impart a liquid crystal alignment energy, and is used for controlling the amount of light transmitted by the birefringence of the liquid crystal composition. Liquid crystal display element. As a liquid crystal display element, an AM-LCD (Active Matrix-Liquid Crystal Display), a TN (nematic liquid crystal display element), an STN-LCD (Super Torsional Nematic Liquid Crystal Display Element), and an OCB (Optically) Compensated Bend-Liquid Crystal Display) - LCD and IPS-LCD (coplanar switching liquid crystal display elements) are useful, but are especially useful for AM-LCDs. They can be used for transmissive or reflective liquid crystals. Display component.
液晶顯示元件中使用之液晶單元之2片基板可使用如玻璃或塑膠般具有柔軟性之透明材料,另一方面,亦可為矽等不透明之材料。 具有透明電極層之透明基板例如可藉由於玻璃板等透明基板上對氧化銦錫(ITO,Indium Tin Oxide)進行濺鍍而獲得。The two substrates of the liquid crystal cell used in the liquid crystal display element may be made of a transparent material such as glass or plastic, or may be an opaque material such as tantalum. The transparent substrate having a transparent electrode layer can be obtained, for example, by sputtering on indium tin oxide (ITO) on a transparent substrate such as a glass plate.
以透明電極層成為內側之方式使上述基板對向。此時,亦可經由間隔件調整基板之間隔。此時,較佳為以所獲得之調光層之厚度成為1~100μm之方式進行調整。進而較佳為1.5至10μm,於使用偏光板之情形時,較佳為以對比度成為最大之方式調整液晶之折射率各向異性△n與單元厚d之積。又,於具有兩片偏光板之情形時,亦可以調整各偏光板之偏光軸而使視野角或對比度變得良好之方式進行調整。進而,亦可使用用以擴大視野角之相位差膜。作為間隔件,例如可列舉玻璃粒子、塑膠粒子、氧化鋁粒子、光阻劑材料等。其後,將環氧系熱硬化性組成物等密封劑以設有液晶注入口之形態絲網印刷於該基板上,將該基板彼此貼合,並進行加熱而使密封劑熱硬化。The substrate is opposed to each other such that the transparent electrode layer is inside. At this time, the interval between the substrates can also be adjusted via the spacer. In this case, it is preferable to adjust so that the thickness of the obtained light control layer becomes 1 to 100 μm. Further, it is preferably 1.5 to 10 μm. When a polarizing plate is used, it is preferable to adjust the product of the refractive index anisotropy Δn of the liquid crystal and the cell thickness d so that the contrast is maximized. Further, in the case of having two polarizing plates, the polarization axes of the respective polarizing plates can be adjusted to adjust the viewing angle or contrast. Further, a retardation film for increasing the viewing angle can also be used. Examples of the separator include glass particles, plastic particles, alumina particles, and a photoresist material. Thereafter, a sealing agent such as an epoxy thermosetting composition is screen printed on the substrate in a form in which a liquid crystal injection port is provided, and the substrates are bonded to each other and heated to thermally cure the sealing agent.
於2片基板間夾持含有聚合性化合物之液晶組成物之方法可使用通常之真空注入法或ODF法等,於真空注入法中,不會產生滴加痕跡,但具有於注入後殘留之課題,於本案發明中,可利用使用ODF法製造之顯示元件而較佳地使用。A method of sandwiching a liquid crystal composition containing a polymerizable compound between two substrates can be carried out by a usual vacuum injection method, an ODF method, or the like, and a drop phenomenon is not caused in the vacuum injection method, but has a problem of remaining after the injection. In the invention of the present invention, it can be preferably used by using a display element manufactured by the ODF method.
作為使聚合性化合物聚合之方法,由於為了獲得液晶之良好之配向性能而較為理想的是適度之聚合速度,故而較佳為藉由單一或併用或依序照射紫外線或電子束等活性能量線而聚合之方法。於使用紫外線之情形時,可使用偏光光源,亦可使用非偏光光源。又,於以將含有聚合性化合物之液晶組成物夾持於2片基板間之狀態進行聚合之情形時,至少照射面側之基板必需對活性能量線賦予適當之透明性。又,亦可使用於光照射時使用遮罩僅使特定部分聚合後,藉由使電場或磁場或溫度等條件變化而使未聚合部分之配向狀態變化,進而照射活性能量線進行聚合之方法。尤其於進行紫外線曝光時,較佳為一面對含有聚合性化合物之液晶組成物 施加交流電場一面進行紫外線曝光。施加之交流電場較佳為頻率10Hz至10kHz之交流,更佳為頻率60Hz至10kHz,電壓係依存於液晶顯示元件所需之預傾角而選擇。即,可藉由施加之電壓而控制液晶顯示元件之預傾角。於MVA(Multi-Domain Vertical Alignment,多域垂直配向)模式之液晶顯示元件中,就配向穩定性及對比度之觀點而言,較佳為將預傾角控制為80度至89.9度。As a method of polymerizing the polymerizable compound, since it is preferable to obtain a moderate polymerization rate in order to obtain good alignment properties of the liquid crystal, it is preferred to irradiate an active energy ray such as an ultraviolet ray or an electron beam by a single or in combination or sequentially. The method of polymerization. For the case of using ultraviolet rays, a polarized light source or a non-polarized light source may be used. In the case where the liquid crystal composition containing the polymerizable compound is polymerized in a state of being sandwiched between the two substrates, at least the substrate on the irradiation surface side must have appropriate transparency to the active energy ray. Further, it is also possible to use a method in which a specific portion is polymerized by light irradiation, and the alignment state of the unpolymerized portion is changed by changing the conditions such as an electric field, a magnetic field, or a temperature, and the active energy ray is irradiated to perform polymerization. Particularly in the case of ultraviolet exposure, it is preferred to face a liquid crystal composition containing a polymerizable compound. Ultraviolet exposure is performed while applying an alternating electric field. The applied alternating electric field is preferably an alternating current having a frequency of 10 Hz to 10 kHz, more preferably a frequency of 60 Hz to 10 kHz, and the voltage is selected depending on the pretilt angle required for the liquid crystal display element. That is, the pretilt angle of the liquid crystal display element can be controlled by the applied voltage. In the liquid crystal display device of the MVA (Multi-Domain Vertical Alignment) mode, it is preferable to control the pretilt angle to 80 to 89.9 degrees from the viewpoint of alignment stability and contrast.
照射時之溫度較佳為保持本發明之液晶組成物之液晶狀態之溫度範圍內。較佳為以接近室溫之溫度即以典型為15~35℃之溫度進行聚合。作為產生紫外線之燈,可使用金屬鹵素燈、高壓水銀燈、超高壓水銀燈等。又,作為照射之紫外線之波長,較佳為照射並非液晶組成物之吸收波長區域之波長區域之紫外線,視需要較佳為將紫外線截止使用。照射之紫外線之強度較佳為0.1mW/cm2 ~100W/cm2 ,更佳為2mW/cm2 ~50W/cm2 。照射之紫外線之能量可適當進行調整,但較佳為10mJ/cm2 至500J/cm2 ,更佳為100mJ/cm2 至200J/cm2 。於照射紫外線時,亦可使強度變化。照射紫外線之時間係根據照射之紫外線強度而適當選擇,但較佳為10秒至3600秒,更佳為10秒至600秒。The temperature at the time of irradiation is preferably within a temperature range in which the liquid crystal state of the liquid crystal composition of the present invention is maintained. It is preferred to carry out the polymerization at a temperature close to room temperature, i.e., at a temperature of typically 15 to 35 °C. As the lamp for generating ultraviolet rays, a metal halide lamp, a high pressure mercury lamp, an ultrahigh pressure mercury lamp, or the like can be used. Further, as the wavelength of the ultraviolet ray to be irradiated, it is preferred to irradiate the ultraviolet ray which is not in the wavelength region of the absorption wavelength region of the liquid crystal composition, and it is preferable to use the ultraviolet ray as needed. The intensity of the ultraviolet ray to be irradiated is preferably from 0.1 mW/cm 2 to 100 W/cm 2 , more preferably from 2 mW/cm 2 to 50 W/cm 2 . The energy of the ultraviolet ray to be irradiated can be appropriately adjusted, but is preferably from 10 mJ/cm 2 to 500 J/cm 2 , more preferably from 100 mJ/cm 2 to 200 J/cm 2 . When the ultraviolet ray is irradiated, the intensity can also be changed. The time for irradiating the ultraviolet rays is appropriately selected depending on the intensity of the ultraviolet rays to be irradiated, but is preferably from 10 seconds to 3600 seconds, more preferably from 10 seconds to 600 seconds.
本發明之液晶顯示元件之構成係如下之液晶顯示元件,即,如圖1所記載包括:第一基板,其具備由透明導電性材料所構成之共通電極;第二基板,其具備控制由透明導電性材料所構成之像素電極與各像素所具備之像素電極之薄膜電晶體;及液晶組成物,其夾持於上述第一基板與第二基板間;且該液晶組成物中之液晶分子之無電壓施加時之配向相對於上述基板大致垂直,其特徵在於:作為該液晶組成物,使用上述本發明之液晶組成物。The liquid crystal display device of the present invention is a liquid crystal display device comprising a first substrate having a common electrode made of a transparent conductive material and a second substrate having a transparent control layer. a thin film transistor of a pixel electrode formed of a conductive material and a pixel electrode provided in each pixel; and a liquid crystal composition sandwiched between the first substrate and the second substrate; and liquid crystal molecules in the liquid crystal composition The alignment at the time of voltage application is substantially perpendicular to the substrate, and the liquid crystal composition of the present invention described above is used as the liquid crystal composition.
滴加痕跡之產生受注入之液晶材料之影響較大,由於顯示元件之構成,該影響亦無法避免。尤其,形成於液晶顯示元件中之彩色濾光 片、薄膜電晶體等因僅具有薄配向膜、透明電極等而無隔開液晶組成物之構件,故藉由組合而對滴加痕跡之產生造成影響。The generation of the traces is greatly affected by the injected liquid crystal material, which is unavoidable due to the composition of the display elements. In particular, color filter formed in a liquid crystal display element Since a sheet, a thin film transistor, or the like has only a thin alignment film, a transparent electrode, or the like without a member that separates the liquid crystal composition, the occurrence of the dropping trace is affected by the combination.
尤其於該薄膜電晶體為逆交錯型之情形時,以汲極電極覆蓋閘極電極之方式形成,故而有其面積增大之傾向。汲極電極係由銅、鋁、鉻、鈦、鉬、鉭等金屬材料形成,一般情況下,實施有鈍化處理為通常之形態。然而,保護膜一般較薄,配向膜亦較薄,不阻斷離子性物質之可能性較高,故而無法避免因金屬材料與液晶組成物之相互作用引起之滴加痕跡之產生。In particular, when the thin film transistor is of an inverted staggered type, the gate electrode is formed so as to cover the gate electrode, and thus the area thereof tends to increase. The drain electrode is formed of a metal material such as copper, aluminum, chromium, titanium, molybdenum or tantalum. In general, passivation treatment is carried out in a usual form. However, the protective film is generally thin, the alignment film is also thin, and the possibility of not blocking the ionic substance is high, so that the occurrence of the dropping trace due to the interaction between the metal material and the liquid crystal composition cannot be avoided.
於本案發明中,可較佳使用於如圖2所記載般薄膜電晶體為逆交錯型之液晶顯示元件,於使用鋁配線之情形時較佳。In the invention of the present invention, the thin film transistor is preferably an inverted staggered liquid crystal display element as described in FIG. 2, and is preferably used in the case of using aluminum wiring.
使用本發明之液晶組成物之液晶顯示元件係兼具高速響應與顯示不良之抑制之有用者,尤其對主動矩陣驅動用液晶顯示元件較為有用,可應用於VA模式、PSVA模式、PSA模式、IPS模式或ECB模式用。The liquid crystal display element using the liquid crystal composition of the present invention is useful for suppressing high-speed response and display failure, and is particularly useful for active matrix driving liquid crystal display elements, and can be applied to VA mode, PSVA mode, PSA mode, IPS. Used in mode or ECB mode.
以下,列舉實施例對本發明進一步進行詳細敍述,但本發明並不限定於該等實施例。又,以下之實施例及比較例之組成物之「%」意指『質量%』。Hereinafter, the present invention will be further described in detail by way of examples, but the invention is not limited to the examples. Moreover, "%" of the composition of the following examples and comparative examples means "% by mass".
實施例中測定之特性係如下所述。The characteristics measured in the examples are as follows.
Tni :向列相-各向同性液體相轉移溫度(℃)T ni : nematic phase-isotropic liquid phase transfer temperature (°C)
△n:20℃下之折射率各向異性Δn: refractive index anisotropy at 20 ° C
△ε:20℃下之介電各向異性△ ε: dielectric anisotropy at 20 ° C
η:20℃下之黏度(m.Pas)η: viscosity at 20 ° C (m.Pas)
γ1 :20℃下之旋轉黏度(m.Pas)γ 1 : rotational viscosity at 20 ° C (m.Pas)
VHR:頻率60Hz、施加電壓5V之條件下70℃下之電壓保持率(%)VHR: Voltage holding ratio at 70 ° C under the condition of frequency 60 Hz and applied voltage of 5 V (%)
耐熱試驗後之VHR:將注入有液晶組成物之VHR測定用TEG(Test Element Group,測試元件組)於120℃之恆溫槽中保持30分鐘後,以與上述VHR測定法相同之條件進行測定。VHR after heat resistance test: The VHR measurement TEG (Test Element Group) in which the liquid crystal composition was injected was held in a thermostat at 120 ° C for 30 minutes, and then measured under the same conditions as the above VHR measurement method.
留痕(persistence):液晶顯示元件之留痕評價係於顯示區域內顯示特定之固定圖案1200小時後,目視進行整個畫面均勻之顯示時之固定圖案之殘留圖像之級別並按照以下4個階梯評價進行。Persistence: The evaluation of the residual mark of the liquid crystal display element is the level of the residual image of the fixed pattern when the specific fixed pattern is displayed for 1200 hours in the display area, and the following four steps are followed. Evaluation is carried out.
◎無殘留圖像(非常良好之級別)◎ no residual image (very good level)
○有少許殘留圖像,亦可容許之級別(良好之級別)○ There are a few residual images, and the level can be tolerated (good level)
△有殘留圖像,無法容許之級別(不良好之級別)△ There are residual images, the level that cannot be tolerated (not good level)
×有殘留圖像,相當粗劣(較差之級別)× There are residual images, which are quite poor (lower level)
滴加痕跡:液晶顯示裝置之滴加痕跡之評價係目視整個面顯示黑色之情形時之浮現白色之滴加痕跡並按照以下4個階梯評價進行。Traces of the drop: The evaluation of the drop marks of the liquid crystal display device was carried out by visually observing the fact that the entire surface showed black and the white drops were added and the evaluation was carried out in accordance with the following four steps.
◎無殘留圖像(非常良好之級別)◎ no residual image (very good level)
○有少許殘留圖像,亦可容許之級別(良好之級別)○ There are a few residual images, and the level can be tolerated (good level)
△有殘留圖像,無法容許之級別(不良好之級別)△ There are residual images, the level that cannot be tolerated (not good level)
×有殘留圖像,相當粗劣(較差之級別)× There are residual images, which are quite poor (lower level)
製程適合性:製程適合性係於ODF製程中,使用定積計量泵於1次滴加液晶各25 pL,並將此過程進行100000次,按照以下4個階梯評價其次之「0~200次、201~400次、401~600次、…99801~100000次」之各200次逐次滴加之液晶量之變化。Process suitability: Process suitability is in the ODF process, using a fixed metering pump to add 25 pL of liquid crystal per drop, and the process is carried out 100,000 times, followed by the following four steps to evaluate the next "0 to 200 times, 200 to 400 times, 401 to 600 times, ...99801 to 100000 times, each of 200 successive drops of liquid crystal changes.
◎變化極其小(可穩定地製造液晶顯示元件。非常良好之級別)◎The change is extremely small (the liquid crystal display element can be stably manufactured. Very good level)
○有少許變化,亦可容許之級別(良好之級別)○ There are a few changes, and the level that can be tolerated (good level)
△有變化,無法容許之級別(因產生斑點而導致良率變差。不良好之級別)△ There is a change, the level that cannot be tolerated (the yield is deteriorated due to the occurrence of spots. The level is not good)
×有變化,相當粗劣(液晶洩漏或真空氣泡產生)(較差之級別)×Change, quite crude (liquid crystal leakage or vacuum bubble generation) (poor level)
低溫下之溶解性:低溫下之溶解性評價係於調製液晶組成物後,於1mL之樣品瓶中稱量液晶組成物0.5g,於溫度控制式試驗槽中,將次數設為1週期「-25℃(保持1小時)→升溫(0.1℃/每分鐘)→0℃(保持1小時)→升溫(0.1℃/每分鐘)→25℃(保持1小時)→降溫(-0.1℃/每分鐘)→0℃(保持1小時)→降溫(-0.1℃/每分鐘)→-25℃」而對其持續賦予溫度變化,目視觀察來自液晶組成物之析出物之產生,進行以下4個階梯評價。Solubility at low temperature: The solubility evaluation at low temperature was carried out by modulating the liquid crystal composition, and weighing 0.5 g of the liquid crystal composition in a 1 mL sample vial, and setting the number of cycles to 1 cycle in the temperature-controlled test cell "- 25 ° C (for 1 hour) → temperature (0.1 ° C / min) → 0 ° C (for 1 hour) → temperature (0.1 ° C / min) → 25 ° C (for 1 hour) → cooling (-0.1 ° C / min →0°C (for 1 hour)→cooling (−0.1°C/min)→-25°C”, the temperature was continuously changed, and the precipitation of the liquid crystal composition was visually observed, and the following four steps were evaluated. .
◎672小時以上未觀察到析出物。(非常良好之級別)◎ No precipitate was observed for 672 hours or longer. (very good level)
○336小時以上未觀察到析出物。(良好之級別)○ No precipitate was observed for 336 hours or more. (good level)
△168小時以內觀察到析出物。(不良好之級別)A precipitate was observed within 168 hours. (not good level)
×84小時以內觀察到析出物。(較差之級別)Leachate was observed within 84 hours. (poor level)
再者,於實施例中關於化合物之記載係使用以下之略號。Further, the following description of the compounds in the examples uses the following abbreviations.
(側鏈結構及連結結構)(side chain structure and joint structure)
-n -Cn H2n+1 碳數n之直鏈狀之烷基-n -C n H 2n+1 a linear alkyl group having a carbon number n
n- Cn H2n+1 -碳數n之直鏈狀之烷基 N -C n H 2n+1 - a linear alkyl group having a carbon number n
-On -OCn H2n+1 碳數n之直鏈狀之烷氧基-On -OC n H 2n+1 carbon number n linear alkoxy
nO- Cn H2n+1 O-碳數n之直鏈狀之烷氧基nO- C n H 2n+1 O-linear alkoxy group of carbon number n
-V -CH=CH2 -V -CH=CH 2
V- CH2 =CH-V- CH 2 =CH-
-V1 -CH=CH-CH3 -V1 -CH=CH-CH 3
1V- CH3 -CH=CH-1V- CH 3 -CH=CH-
-2V -CH2 -CH2 -CH=CH3 -2V -CH 2 -CH 2 -CH=CH 3
V2- CH3 =CH-CH2 -CH2 -V2-CH 3 =CH-CH 2 -CH 2 -
-2V1 -CH2 -CH2 -CH=CH-CH3 -2V1 -CH 2 -CH 2 -CH=CH-CH 3
1V2- CH3 -CH=CH-CH2 -CH2 1V2-CH 3 -CH=CH-CH 2 -CH 2
(環結構)
(比較例1及實施例1~3)(Comparative Example 1 and Examples 1 to 3)
調製具有以下所示之組成之液晶組成物(LC1~4),並測定其物性值。將其結果示於下表中。A liquid crystal composition (LC1 to 4) having the composition shown below was prepared, and the physical property values thereof were measured. The results are shown in the table below.
使用各液晶組成物,製作圖1所示之VA液晶顯示元件。該液晶顯示元件具有逆交錯型之薄膜電晶體作為主動元件。液晶組成物之注入係利用滴加法進行,並進行留痕、滴加痕跡、製程適合性及低溫下之溶解性之評價。The VA liquid crystal display element shown in Fig. 1 was produced using each liquid crystal composition. The liquid crystal display element has an inversely staggered thin film transistor as an active element. The injection of the liquid crystal composition was carried out by a dropping method, and evaluation of leaving marks, dropping marks, process suitability, and solubility at low temperatures was performed.
再者,含量之左側之記號為上述化合物之略號之記載。Further, the symbol on the left side of the content is the description of the abbreviated name of the above compound.
可知,實施例1~3之液晶組成物LC-2~4與不含有式(i)之化合物之比較例1之液晶組成物LC-1相比,黏度η及旋轉黏性γ1 較低,留痕評價、滴加痕跡評價、製程適合性、且低溫下之溶解性優異。It is understood that the liquid crystal compositions LC-2 to 4 of Examples 1 to 3 have lower viscosity η and rotational viscosity γ 1 than the liquid crystal composition LC-1 of Comparative Example 1 which does not contain the compound of the formula (i). The evaluation of the trace, the evaluation of the trace, the suitability of the process, and the solubility at low temperatures are excellent.
(實施例4~7)(Examples 4 to 7)
調製具有以下所示之組成之液晶組成物(LC-5~8),並測定其物性值。又,根據液晶顯示元件進行留痕、滴加痕跡、製程適合性及低溫下之溶解性之評價。將其結果示於以下。A liquid crystal composition (LC-5 to 8) having the composition shown below was prepared, and the physical property value thereof was measured. Further, the liquid crystal display element was evaluated for the retention marks, the dropping traces, the process suitability, and the solubility at low temperatures. The results are shown below.
於實施例4~7之液晶組成物LC-5~8中,於實施例4之液晶組成物LC-5中式(i)之化合物與式(XIII-1-2)之化合物之添加量之合計為26質量%,故而獲得雖略差但良好之結果。In the liquid crystal compositions LC-5 to 8 of Examples 4 to 7, the total amount of the compound of the formula (i) and the compound of the formula (XIII-1-2) in the liquid crystal composition LC-5 of Example 4. It was 26% by mass, and thus a slightly poor but good result was obtained.
(實施例8~12)(Examples 8 to 12)
調製具有以下所示之組成之液晶組成物(LC-9~13),並測定其物性值。又,根據液晶顯示元件進行留痕、滴加痕跡、製程適合性及低溫下之溶解性之評價。將其結果示於以下。A liquid crystal composition (LC-9 to 13) having the composition shown below was prepared, and the physical property values thereof were measured. Further, the liquid crystal display element was evaluated for the retention marks, the dropping traces, the process suitability, and the solubility at low temperatures. The results are shown below.
可知,實施例8~12之液晶組成物LC-9~13之黏度η及旋轉黏性γ1 較低,各種面板評價性能、製程適合性、且低溫下之溶解性優異。It is understood that the liquid crystal compositions LC-9 to 13 of Examples 8 to 12 have low viscosity η and rotational viscosity γ 1 , and are excellent in various panel evaluation performance, process suitability, and solubility at low temperatures.
(實施例13~16)(Examples 13 to 16)
調製具有以下所示之組成之液晶組成物(LC-14~17),並測定其物性值。又,根據液晶顯示元件進行留痕、滴加痕跡、製程適合性及低溫下之溶解性之評價。將其結果示於以下。A liquid crystal composition (LC-14 to 17) having the composition shown below was prepared, and the physical property value thereof was measured. Further, the liquid crystal display element was evaluated for the retention marks, the dropping traces, the process suitability, and the solubility at low temperatures. The results are shown below.
於實施例13~16之液晶組成物LC-14~17中獲得良好之結 果。A good junction was obtained in the liquid crystal compositions LC-14~17 of Examples 13-16. fruit.
(實施例17~20)(Examples 17 to 20)
調製具有以下所示之組成之液晶組成物(LC-18~21),並測定其物性值。又,根據液晶顯示元件進行留痕、滴加痕跡、製程適合性及低溫下之溶解性之評價。將其結果示於以下。A liquid crystal composition (LC-18 to 21) having the composition shown below was prepared, and the physical property value thereof was measured. Further, the liquid crystal display element was evaluated for the retention marks, the dropping traces, the process suitability, and the solubility at low temperatures. The results are shown below.
於實施例17~20之液晶組成物LC-18~21中獲得良好之結果。Good results were obtained in the liquid crystal compositions LC-18 to 21 of Examples 17 to 20.
(實施例21)(Example 21)
針對99.85%之實施例14所示之向列型液晶組成物LC-15,添加0.15%
之以下所示之聚合性化合物
並進行均勻地溶解,藉此調製聚合性液晶組成物CLC-A。CLC-A之物性與實施例27所示之向列型液晶組成物之物性幾乎無差異。利用真空注入法將CLC-A注入至單元間隙3.5μm之塗佈有誘發水平配向之聚醯亞胺配向膜之附ITO之單元中。一面對該單元施加頻率1kHz之矩形波一面經由截止320nm以下之紫外線之濾光片並藉由高壓水銀燈對液晶單元照射紫外線。以單元表面之照射強度成為10mW/cm2 之方式進行調整並照射600秒鐘,而獲得使聚合性液晶組成物中之聚合性化合物聚合而成之垂直配向性液晶顯示元件。藉由使聚合性化合物聚合,而可確認產生對液晶化合物之配向限制力。Further, the polymerizable liquid crystal composition CLC-A was prepared by uniformly dissolving. The physical properties of CLC-A and the physical properties of the nematic liquid crystal composition shown in Example 27 were almost the same. The CLC-A was injected into a cell with a ITO attached to the polyimine aligning film which induced the horizontal alignment by a vacuum injection method to a cell gap of 3.5 μm. While applying a rectangular wave having a frequency of 1 kHz to the unit, the liquid crystal cell is irradiated with ultraviolet rays through a filter for blocking ultraviolet rays of 320 nm or less and by a high pressure mercury lamp. The vertical alignment liquid crystal display element obtained by polymerizing the polymerizable compound in the polymerizable liquid crystal composition was obtained by adjusting and irradiating the surface of the unit to have an irradiation intensity of 10 mW/cm 2 for 600 seconds. By polymerizing the polymerizable compound, it was confirmed that the alignment regulating force to the liquid crystal compound was generated.
1‧‧‧偏光板1‧‧‧Polar plate
2‧‧‧基板2‧‧‧Substrate
3‧‧‧透明電極或伴有主動元件之透明電極3‧‧‧Transparent electrode or transparent electrode with active components
4‧‧‧配向膜4‧‧‧Alignment film
5‧‧‧液晶5‧‧‧LCD
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