TW202045993A - 一種液晶組合物及液晶顯示器件 - Google Patents

一種液晶組合物及液晶顯示器件 Download PDF

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TW202045993A
TW202045993A TW109118320A TW109118320A TW202045993A TW 202045993 A TW202045993 A TW 202045993A TW 109118320 A TW109118320 A TW 109118320A TW 109118320 A TW109118320 A TW 109118320A TW 202045993 A TW202045993 A TW 202045993A
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liquid crystal
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general formula
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馬文陽
韓文明
徐海彬
王立威
嚴為剛
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大陸商江蘇和成顯示科技有限公司
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Abstract

本發明公開了一種液晶組合物和液晶顯示器件,所述液晶組合物包含至少一種通式I的化合物、至少一種通式II的化合物、至少一種通式III的化合物以及至少一種通式IV的化合物,通過這四種化合物的配合,可以使得該組合物具有較寬的向列相溫度範圍、較低的黏度以及較低的閾值電壓等優點,液晶顯示元件具有短的回應時間和優越的省電性能。

Description

一種液晶組合物及液晶顯示器件
本發明屬於液晶材料技術領域,涉及一種液晶組合物及液晶顯示器件。
液晶顯示器(Liquid Crystal Display,LCD)因其體積小、重量輕、功耗低且顯示品質優異而獲得了飛速發展,特別在可擕式電子資訊產品中獲得廣泛的應用。隨著用於可擕式電腦、辦公應用、視頻應用的液晶螢幕尺寸的增加,液晶顯示器能夠用於大螢幕顯示並最終替代了陰極射線管的顯示器(Cathode Ray Tube,CRT)。
根據顯示模式的類型分為PC(phase change,相變)、TN(twist nematic,扭曲向列)、STN(super twisted nematic,超扭曲向列)、ECB(electrically controlled birefringence,電控雙折射)、OCB(optically compensated bend,光學補償彎曲)、IPS(in-plane switching,共面轉變)、VA(vertical alignment,垂直配向)等類型。
目前,液晶化合物的應用範圍拓展的越來越廣,其可應用於多種類型的顯示器、電光器件、感測器等中。用於上述顯示領域的液晶化合物的種類繁多,其中向列相液晶應用最為廣泛。向列相液晶已經應用在無源TN、STN矩陣顯示器和具有TFT有源矩陣的系統中。
液晶材料需要具有適當高的介電各向異性、光學各向異性以及良好的低溫互溶性和熱穩定性。此外,液晶材料還應當具有低黏度和短回應時間,低閾值電壓和高對比。向列相的溫度範圍與元件的工作溫度範圍相關聯。向列相的上限溫度較好的是大於等於70℃,並且向列相的下限溫度較好的是小於等於-10℃。組合物的黏度與元件的回應時間相關聯。為了在元件中顯示動畫,較好的是元件的回應時間短。因此,較好的是組合物的黏度小,而更好的是溫度低時組合物的黏度小。
較理想的AM元件是具有可使用的溫度範圍廣、回應時間短、對比度大、臨界電壓低、電壓保持率大、壽命長等特性。因此,組合物的特性較理想的是向列相的上限溫度高、向列相的下限溫度低、黏度小、光學各向異性大、介電常數各向異性大。
因此,提供一種具有較寬的向列相溫度範圍、較低的黏度以及較低的閾值電壓的液晶組合物非常有必要。
本發明的目的在於一種液晶組合物及液晶顯示器件,本發明的液晶組合物具有較寬的向列相溫度範圍、較低的黏度以及較低的閾值電壓等優點,液晶顯示元件具有短的回應時間和優越的省電性能。
為達此目的,本發明採用以下技術方案:
一方面,本發明提供一種液晶組合物,所述液晶組合物包含至少一種通式I的化合物、至少一種通式II的化合物、至少一種通式III的化合物以及至少一種通式IV的化合物:
Figure 02_image001
Figure 02_image003
Figure 02_image005
Figure 02_image007
; 其中,所述R1 、R2 、R3 、R4 、R5 、R6 和R7 各自獨立地表示含有1-10個碳原子的直鏈或支鏈的烷基或烷氧基、含有2-12個碳原子的直鏈或支鏈的烯基或烯氧基,其中1-10個碳原子可以為1個碳原子、2個碳原子、3個碳原子、4個碳原子、5個碳原子、6個碳原子、7個碳原子、8個碳原子、9個碳原子、10個碳原子,2-12個碳原子可以為2個碳原子、3個碳原子、4個碳原子、5個碳原子、6個碳原子、7個碳原子、8個碳原子、9個碳原子、10個碳原子、11個碳原子、12個碳原子,示例性的選自-CH3 、-CH2 -CH3 、-CH2 -CH2 -CH3 、-CH2 -CH2 -CH2 -CH3
Figure 02_image012
、-CH2 -O-、-CH2 -O-CH2 -、-CH=CH-、-CH=CH-CH2 -、-CH=CH-O-等; 所述Z1 表示含有2-7個碳原子的直鏈或支鏈的烯基,其中2-12個碳原子可以為2個碳原子、3個碳原子、4個碳原子、5個碳原子、6個碳原子、7個碳原子; 所述Z2 表示單鍵、-CH2 -O-、-O-CH2 -、-CO-O-、-O-CO-、-CH=CH-或-CH2 -CH2 -; 所述Z3 、Z4 和Z5 各自獨立地表示單鍵、-COO-、-CH2 -CH2 -、-CH=CH-或-CH2 -O-; 所述n1表示1或2; 所述環
Figure 02_image014
、環
Figure 02_image016
和環
Figure 02_image018
各自獨立地表示
Figure 02_image020
Figure 02_image022
Figure 02_image024
Figure 02_image026
Figure 02_image028
Figure 02_image030
Figure 02_image032
Figure 02_image034
Figure 02_image036
Figure 02_image038
; 所述n2表示0、1或2,當 n2表示2時,環
Figure 02_image040
相同或不同; 所述環
Figure 02_image041
和環
Figure 02_image043
各自獨立地表示
Figure 02_image020
Figure 02_image022
Figure 02_image024
、、
Figure 02_image045
Figure 02_image026
Figure 02_image028
Figure 02_image030
Figure 02_image032
Figure 02_image034
Figure 02_image036
Figure 02_image038
; 所述n3表示0、1或2,當 n3表示2時,環
Figure 02_image047
相同或不同; 其中虛線代表接入位,本申請中的虛線均代表接入位,後續不再贅述; 其中通式III的化合物不包括通式I的化合物;通式IV的化合物不包括通式II的化合物。
在本發明中,由於液晶組合物中同時包含通式I、II、III和IV的化合物,組分相互配合使得該組合物具有較寬的向列相寬度、較低黏度以及較低閾值電壓等優點。
優選地,所述通式I的化合物占液晶組合物總重量的1-40%,例如1%、5%、10%、15%、20%、25%、30%、35%、40%等,優選5-35%,進一步優選5-30%。
優選地,所述通式II的化合物占液晶組合物總重量的1-70%,例如1%、5%、10%、15%、20%、25%、30%、35%、40%、45%、50%、55%、60%、65%、70%等,優選5-65%,進一步優選5-60%。
優選地,所述通式III的化合物占液晶組合物總重量的10-70%,例如10%、15%、20%、25%、30%、35%、40%、45%、50%、55%、60%、65%、70%等,優選15-65%,進一步優選20-60%。
優選地,所述通式IV的化合物占液晶組合物總重量的1-50%,例如1%、5%、10%、15%、20%、25%、30%、35%、40%、45%、50%等,優選1-40%,進一步優選1-35%。
優選地,所述通式I的化合物為具有如下結構的化合物中的任意一種或至少兩種的組合:
Figure 02_image048
I-1;
Figure 02_image050
I-2;
Figure 02_image052
I-3;
Figure 02_image054
I-4;
Figure 02_image056
I-5;
Figure 02_image058
I-6;
Figure 02_image060
I-7;
Figure 02_image062
I-8; 其中,R1 具有與上述相同的限定範圍。
優選地,所述通式II的化合物為具有如下結構的化合物中的任意一種或至少兩種的組合:
Figure 02_image064
II-1;
Figure 02_image066
II-2;
Figure 02_image068
II-3;
Figure 02_image070
II-4; 其中,R2 和R3 各自獨立地具有與上述相同的限定範圍。
優選地,所述通式III的化合物為具有如下結構的化合物中的任意一種或至少兩種的組合:
Figure 02_image072
III-1;
Figure 02_image074
III-2;
Figure 02_image076
III-3;
Figure 02_image078
III-4;
Figure 02_image080
III-5;
Figure 02_image082
III-6;
Figure 02_image084
III-7;
Figure 02_image086
III-8;
Figure 02_image088
III-9;
Figure 02_image090
III-10;
Figure 02_image092
III-11;
Figure 02_image094
III-12;
Figure 02_image096
III-13;
Figure 02_image098
III-14;
Figure 02_image100
III-15;
Figure 02_image102
III-16;
Figure 02_image104
III-17;
Figure 02_image106
III-18;
Figure 02_image108
III-19;
Figure 02_image110
III-20;
Figure 02_image112
III-21;
Figure 02_image114
III-22;
Figure 02_image116
III-23; 所述R4 和R5 具有與上述相同的限定範圍。
優選地,所述通式III的化合物為具有III-1、III-2、III-3、III-4、III-9、III-11、III-12、III-13、III-15、III-16、III-17、III-18、III-19、III-20、III-21、III-22、III-23結構的化合物中的任意一種或至少兩種的組合。
優選地,所述通式III的化合物為具有III-1、III-3、III-11、III-13、III-16、III-21、III-22、III-23結構的化合物中的任意一種或至少兩種的組合。
優選地,所述通式III-1、III-2、III-3的化合物中,所述R2 和R3 中至少一個表示含有2-10個碳原子的鹵代或未鹵代的直鏈的烯基或烯氧基,其中2-10個碳原子可以為2個碳原子、3個碳原子、4個碳原子、5個碳原子、6個碳原子、7個碳原子、8個碳原子、9個碳原子、10個碳原子。
優選地,所述通式IV的化合物為具有如下結構的化合物中的任意一種或至少兩種的組合:
Figure 02_image118
IV-1;
Figure 02_image120
IV-2;
Figure 02_image122
IV-3;
Figure 02_image124
IV-4;
Figure 02_image126
IV-5;
Figure 02_image128
IV-6;
Figure 02_image130
IV-7;
Figure 02_image132
IV-8; 其中,R6 和R7 各自獨立地具有與上述相同的限定範圍。
另一方面,本發明提供一種液晶顯示器件,所述液晶顯示器件包括上述所述的液晶化合物。
本發明中的液晶顯示器件具有較短的回應時間和優越的省電性能。
相對于現有技術,本發明具有以下有益效果:
本發明的液晶組合物具有較寬的向列相溫度範圍、較低的黏度以及較低的閾值電壓等優點,液晶顯示元件具有短的回應時間和優越的省電性能。
下面通過具體實施方式來進一步說明本發明的技術方案。本領域技術人員應該明瞭,所述實施例僅僅是幫助理解本發明,不應視為對本發明的具體限制。
為了便於表達,在以下實施例中,液晶組合物的基團結構以表1中所列的代碼來表示: 表1 液晶組合物中化合物基團結構代碼
基團的單元結構 代碼 基團名稱
Figure 02_image134
C 1,4-亞環己基
Figure 02_image136
C(N) 1-氰基-1,4-亞環己基
Figure 02_image138
P 1,4-亞苯基
Figure 02_image140
I 2,3-二氫-茚-2,5-二基
Figure 02_image142
G 2-氟-1,4-亞苯基
Figure 02_image144
U 2,6-二氟-1,4-亞苯基
Figure 02_image146
W 2,3-二氟-1,4-亞苯基
Figure 02_image148
P(F,Cl) 2-氯-3-氟-1,4-亞苯基
Figure 02_image150
P(2N) 2,3-二氰基-1,4-亞苯基
Figure 02_image152
W(1) 2,3-二氟-6-甲基-1,4-亞苯基
Figure 02_image154
Na(3F) 1,2,8-三氟-3,7-亞萘基
Figure 02_image156
A 2-氧代六環
Figure 02_image158
AI 3-氧代六環
Figure 02_image160
D 1,3-二氧六環-2,5-二基
Figure 02_image162
Q或1(2F)O 二氟醚基
-O- O 氧取代基
-F F 氟取代基
-CH=CH- V 烯基
-C≡C- T 炔基
Figure 02_image164
V(2F) 二氟烯基
-COO- E 酯橋鍵
-Cn H2n+1 或-Cm H2m+1 n或m 烷基
Figure 02_image166
L 2-烯基-1,4-亞環己基
以如下結構式的化合物為例對其結構代碼進行說明:
Figure 02_image168
,該結構式如果用表1所示代碼表示,則可以表達為nCCEPCm,代碼中n表示左端烷基的碳原子數,例如n為3,即表示該烷基為-C3 H7 ,代碼中C表示亞環己烷基,E表示酯基,P表示亞苯基,m表示右端烷基的碳原子數,例如m為2,即表示該烷基為-C2 H5
在以下實施例中,性能測試專案的簡寫代號如表2所示。 表2性能測試專案簡寫代號
測試項目代號 含義
Δn: 光學各向異性(589 nm,25℃)
Δε: 介電各向異性(1 KHz,25℃)
Cp: 液晶清亮點
γ1: 旋轉粘度(mPa.s,25℃)
Tc 低溫存儲相變點(即向列相下限溫度,℃)
Vth 閾值電壓(在10%相對透過率時的特徵電壓)
η 流動粘度(cP,25℃)
其中,Cp(清亮點)是使用DSC定量法測試的; Δn(光學各向異性)是使用阿貝測試儀測試得到的,測試溫度為25℃,測試波長為589 nm; Δε(介電各向異性),Δε=ε∥-ε⊥,其中,ε∥為平行于分子軸的介電常數,ε⊥為垂直于分子軸的介電常數,測試溫度為25±0.5℃; γ1(旋轉黏度)是使用INSTEC:ALCTIR1測試得到的,測試條件為25±0.5℃,20微米平行盒; η(流動黏度)是通過E型黏度計測定,測試條件為25±0.5℃; Vth (閾值電壓),測試條件為C/1KHz,VA5.8。
在本以下實施例的液晶組合物中所採用的各成分,均可以通過公知的方法進行合成或者可以通過商業途徑獲得,所得液晶組合物的各成分經測試符合電子類化合物標準。
以下實施例中的液晶組合物按照各組分配比(各實施例中組分末尾的括弧中為所述組分的歸屬通式),並通過常規製備方法如採用加熱、超聲波、懸浮等方式混合得到液晶組合物。
實施例1
在本實施例中,液晶組合物包括如下表所示質量百分含量的組分,並且在下表中列出了其性能測試結果:
組分 含量(%) 測試
3CPP2(III-11) 6 Cp(℃) 80.5
3CPPC3(III-23) 2 Δn 0.1059
3CWO2(II-1) 11 △ε -3.07
2C1OWO2(II-3) 5 η(cP,25℃) 14.5
3CC1OWO2(II-4) 5 γ1(mPa•s) 115
3CCWO2(II-2) 10 Tc(℃) >-20
5CCWO2(II-2) 7 Vth (V) 2.236V
3CC2(III-1) 8    
4CPWO2(IV-2) 4    
5PP1(III-3) 13    
3CCV1(III-1) 7.5    
2CWO2(II-1) 8.5    
4CWO2(II-1) 3    
2CCP2V1(I-5) 6    
3CCP2V1(I-5) 4    
實施例2
在本實施例中,液晶組合物包括如下表所示質量百分含量的組分,並且在下表中列出了其性能測試結果:
組分 含量(%) 測試
3CGP2(III-13) 6 Cp(℃) 82.3
3CPGP3(III-21) 2 Δn 0.1052
3CWO2(II-1) 11 △ε -3.13
2CC1OWO2(II-4) 5 η(cP,25℃) 14.6
3CC1OWO2(II-4) 5 γ1(mPa•s) 118
3CCWO2(II-2) 8 Tc(℃) >-20
5CCWO2(II-2) 4 Vth (V) 2.225
3CC2(III-1) 8    
4CPWO2(IV-2) 4    
5PP1(III-3) 13    
3CCV1(III-1) 7.5    
2CWO2(II-1) 8.5    
4CWO2(II-1) 8    
2CCP2V1(I-5) 6    
3CCP2V1(I-5) 4    
實施例3
在本實施例中,液晶組合物包括如下表所示質量百分含量的組分,並且在下表中列出了其性能測試結果:
組分 含量(%) 測試
3CPO2(III-2) 9 Cp(℃) 78.8
3CCP2V1(I-5) 10.5 Δn 0.1093
3CWO2(II-1) 5 △ε -2.19
5CWO2(II-1) 8 η(cP,25℃) 15.2
2CPWO2(IV-2) 7 γ1(mPa•s) 118
3CPWO4(IV-2) 8.5 Tc(℃) >-20
3CCWO2(II-2) 10 Vth (V) 2.526
4CCWO2(II-2) 5    
3CC2(III-1) 20    
4CC3(III-1) 9    
VCWO4(II-1) 8    
實施例4
在本實施例中,液晶組合物包括如下表所示質量百分含量的組分,並且在下表中列出了其性能測試結果:
組分 含量(%) 測試
3VCPO2(III-2) 9 Cp(℃) 79.6
3CCP2V1(I-5) 10.5 Δn 0.115
3PWO2(IV-1) 3 △ε -2.59
5PWO2(IV-1) 8 η(cP,25℃) 16.2
2CPWO2(IV-2) 7 γ1(mPa•s) 126
3CPWO4(IV-2) 8.5 Tc(℃) >-20
3CCWO2(II-2) 10 Vth (V) 2.435
4CCWO2(II-2) 5    
3CC2(III-1) 20    
4CC3(III-1) 9    
VCWO4(II-1) 10    
實施例5
在本實施例中,液晶組合物包括如下表所示質量百分含量的組分,並且在下表中列出了其性能測試結果:
組分 含量(%) 測試
3CPP2(III-11) 9.5 Cp(℃) 83.8
3C1OWO2(II-3) 5.5 Δn 0.1216
2PPWO2(IV-3) 4 △ε -3.21
3PPWO2(IV-3) 6.5 η(cP,25℃) 16.6
4PPWO2(IV-3) 6.5 γ1(mPa•s) 118
3PPO2(III-3) 5 Tc(℃) >-20
3CCV(III-1) 18.5 Vth (V) 2.245
3CCV1(III-1) 12    
2C1OWO2(II-3) 6.5    
4C1OWO2(II-3) 6    
2CCP2V(I-2) 5    
3CCP2V(I-2) 3.5    
1VCPWO2(IV-2) 2    
1V2PWO2(IV-1) 6    
1VCPWO4(IV-2) 3.5    
實施例6
在本實施例中,液晶組合物包括如下表所示質量百分含量的組分,並且在下表中列出了其性能測試結果:
組分 含量(%) 測試
3CPP2(III-11) 9.5 Cp(℃) 83.2
3C1OWO2(II-3) 5 Δn 0.1085
2CC1OWO2(II-4) 2 △ε -2.85
3CC1OWO2(II-4) 4 η(cP,25℃) 15.7
4CC1OWO2(II-4) 1 γ1(mPa•s) 113
3CCV(III-1) 20.5 Tc(℃) >-20
3CCV1(III-1) 12 Vth (V) 2.375
2C1OWO2(II-3) 7.5    
4C1OWO2(II-3) 8    
2CCP2V(I-2) 5    
3CCP2V1(I-5) 3.5    
1VCPWO2(IV-2) 7    
1V2PWO2(IV-1) 7.5    
1VCPWO4(IV-2) 7.5    
實施例7
在本實施例中,液晶組合物包括如下表所示質量百分含量的組分,並且在下表中列出了其性能測試結果:
組分 含量(%) 測試
3CC1OC2(III-16) 9.5 Cp(℃) 81.8
3C1OWO2(II-3) 5 Δn 0.1050
2PWWO2(IV-4) 2 △ε -3.12
3PWWO2(IV-4) 4 η(cP,25℃) 15.8
4PWWO2(IV-4) 1 γ1(mPa•s) 112
3CCV(III-1) 20.5 Tc(℃) >-20
3CCV1(III-1) 12 Vth (V) 2.318
2C1OWO2(II-3) 7.5    
4C1OWO2(II-3) 8    
2CCP2V(I-2) 2    
3CCP3V(I-3) 6.5    
1VCPWO2(IV-2) 7    
1V2PWO2(IV-1) 7.5    
1VCPWO4(IV-2) 7.5    
實施例8
在本實施例中,液晶組合物包括如下表所示質量百分含量的組分,並且在下表中列出了其性能測試結果:
組分 含量(%) 測試
3CPPC3(III-23) 2 Cp(℃) 78.9
3CPP2(III-11) 4 Δn 0.1126
3CWO2(II-1) 11 △ε -3.37
2C1OWO2(II-3) 5 η(cP,25℃) 14.2
3C1OWO2(II-3) 5 γ1(mPa•s) 122
3CCWO2(II-2) 8 Tc(℃) >-20
5CCWO2(II-2) 10 Vth (V) 2.237
3CC2(III-1) 8    
4C1OWO2(II-3) 4    
5PP1(III-3) 8    
3CCV1(III-1) 7.5    
2CWO2(II-1) 5.5    
4CWO2(II-1) 5    
3PWP4 2    
2CCP1V1(I-8) 6    
3CCP2V1(I-5) 4    
2CCP3V1(I-6) 5    
實施例9
在本實施例中,液晶組合物包括如下表所示質量百分含量的組分,並且在下表中列出了其性能測試結果:
組分 含量(%) 測試
3CCPV2(I-7) 9 Cp(℃) 82.3
2CCP2V1(I-5) 9 Δn 0.117
2CCPV1(I-4) 4 △ε -3.06
3CCEPC3(III-22) 1 η(cP,25℃) 15.2
3CPWO4(IV-2) 4 γ1(mPa•s) 125
5C1OWO2(II-3) 11 Tc(℃) >-20
3CC1OWO2(II-4) 10 Vth (V) 2.355
2CC1OWO2(II-4) 9    
4CCWO2(II-2) 3    
3CC2(III-1) 21    
5PP1(III-3) 13    
2C1OWO2(II-3) 5    
3PWO2(IV-1) 1    
對比例1
在本實施例中,液晶組合物包括如下表所示質量百分含量的組分,並且在下表中列出了其性能測試結果:
組分 含量(%) 測試
3CPP2(III-11) 6 Cp(℃) 73.9
3CPPC3(III-23) 2 Δn 0.1068
3CWO2(II-1) 11 △ε -3.01
2C1OWO2(II-3) 5 η(cP,25℃) 14.7
3CC1OWO2(II-4) 5 γ1(mPa•s) 122
3CCWO2(II-2) 10 Tc(℃) >-10
5CCWO2(II-2) 7 Vth (V) 2.365
3CC2(III-1) 8    
4CPWO2(IV-2) 4    
5PP1(III-3) 13    
3CCV1(III-1) 7.5    
2CWO2(II-1) 8.5    
4CWO2(II-1) 3    
2CPP2V1(III-11) 6    
3CPP2V1(III-11) 4    
通過實施例1-9和對比例1的對比可知,本發明的液晶化合物具有較小的轉動黏滯係數,較寬的向列相溫度範圍以及較短的回應時間。
申請人聲明,以上所述僅為本發明的具體實施方式,但本發明的保護範圍並不局限於此,所屬技術領域的技術人員應該明瞭,任何屬於本技術領域的技術人員在本發明揭露的技術範圍內,可輕易想到的變化或替換,均落在本發明的保護範圍和公開範圍之內。
Figure 109118320-A0101-11-0001-1

Claims (10)

  1. 一種液晶組合物,其特徵在於,所述液晶組合物包含至少一種通式I的化合物、至少一種通式II的化合物、至少一種通式III的化合物以及至少一種通式IV的化合物:
    Figure 03_image001
    Figure 03_image003
    Figure 03_image005
    Figure 03_image007
    ; 其中, R1 、R2 、R3 、R4 、R5 、R6 和R7 各自獨立地表示含有1-10個碳原子的直鏈或支鏈的烷基或烷氧基、含有2-12個碳原子的直鏈或支鏈的烯基或烯氧基; Z1 表示含有2-7個碳原子的直鏈或支鏈的烯基; Z2 表示單鍵、-CH2 -O-、-O-CH2 -、-CO-O-、-O-CO-、-CH=CH-或-CH2 -CH2 -; Z3 、Z4 和Z5 各自獨立地表示單鍵、-COO-、-CH2 -CH2 -、-CH=CH-或-CH2 -O-; n1表示1或2; 環
    Figure 03_image014
    、環
    Figure 03_image016
    和環
    Figure 03_image018
    各自獨立地表示
    Figure 03_image020
    Figure 03_image022
    Figure 03_image024
    Figure 03_image026
    Figure 03_image028
    Figure 03_image030
    Figure 03_image032
    Figure 03_image034
    Figure 03_image036
    Figure 03_image038
    ; n2表示0、1或2,當n2表示2時,環
    Figure 03_image040
    相同或不同; 環
    Figure 03_image041
    和環
    Figure 03_image043
    各自獨立地表示
    Figure 03_image020
    Figure 03_image022
    Figure 03_image024
    、、
    Figure 03_image045
    Figure 03_image026
    Figure 03_image028
    Figure 03_image030
    Figure 03_image032
    Figure 03_image034
    Figure 03_image036
    Figure 03_image038
    ; n3表示0、1或2,當n3表示2時,環
    Figure 03_image047
    相同或不同; 其中虛線代表接入位; 其中通式III的化合物不包括通式I的化合物;通式IV的化合物不包括通式II的化合物。
  2. 如請求項1所述之液晶組合物,其中,通式I的化合物占液晶組合物總重量的1-40%,優選5-35%,進一步優選5-30%。
  3. 如請求項1所述之液晶組合物,其中,通式II的化合物占液晶組合物總重量的1-70%,優選5-65%,進一步優選5-60%。
  4. 如請求項1所述之液晶組合物,其中,通式III的化合物占液晶組合物總重量的10-70%,優選15-65%,進一步優選20-60%。
  5. 如請求項1所述之液晶組合物,其中,通式IV的化合物占液晶組合物總重量的1-50%,優選1-40%,進一步優選1-35%。
  6. 如請求項1所述之液晶組合物,其中,通式I的化合物為具有如下結構的化合物中的任意一種或至少兩種的組合:
    Figure 03_image048
    I-1;
    Figure 03_image050
    I-2;
    Figure 03_image052
    I-3;
    Figure 03_image054
    I-4;
    Figure 03_image056
    I-5;
    Figure 03_image058
    I-6;
    Figure 03_image060
    I-7;
    Figure 03_image062
    I-8; 其中,R1 具有與請求項1相同的限定範圍。
  7. 如請求項1所述之液晶組合物,其中,通式II的化合物為具有如下結構的化合物中的任意一種或至少兩種的組合:
    Figure 03_image064
    II-1;
    Figure 03_image066
    II-2;
    Figure 03_image068
    II-3;
    Figure 03_image070
    II-4; 其中,R2 和R3 各自獨立地具有與請求項1相同的限定範圍。
  8. 如請求項1所述之液晶組合物,其中,通式III的化合物為具有如下結構的化合物中的任意一種或至少兩種的組合:
    Figure 03_image072
    III-1;
    Figure 03_image074
    III-2;
    Figure 03_image076
    III-3;
    Figure 03_image078
    III-4;
    Figure 03_image080
    III-5;
    Figure 03_image082
    III-6;
    Figure 03_image084
    III-7;
    Figure 03_image086
    III-8;
    Figure 03_image088
    III-9;
    Figure 03_image090
    III-10;
    Figure 03_image092
    III-11;
    Figure 03_image094
    III-12;
    Figure 03_image096
    III-13;
    Figure 03_image098
    III-14;
    Figure 03_image100
    III-15;
    Figure 03_image102
    III-16;
    Figure 03_image104
    III-17;
    Figure 03_image106
    III-18;
    Figure 03_image108
    III-19;
    Figure 03_image110
    III-20;
    Figure 03_image112
    III-21;
    Figure 03_image114
    III-22;
    Figure 03_image116
    III-23; R4 和R5 具有與權利要求1相同的限定範圍; 優選地,通式III的化合物為具有III-1、III-2、III-3、III-4、III-9、III-11、III-12、III-13、III-15、III-16、III-17、III-18、III-19、III-20、III-21、III-22、III-23結構的化合物中的任意一種或至少兩種的組合; 優選地,通式III的化合物為具有III-1、III-3、III-11、III-13、III-16、III-21、III-22、III-23結構的化合物中的任意一種或至少兩種的組合; 優選地,通式III-1、III-2、III-3的化合物中,R2 和R3 中至少一個表示含有2-10個碳原子的鹵代或未鹵代的直鏈的烯基或烯氧基。
  9. 如請求項1-8中任一項所述之液晶組合物,其中,通式IV的化合物為具有如下結構的化合物中的任意一種或至少兩種的組合:
    Figure 03_image118
    IV-1;
    Figure 03_image120
    IV-2;
    Figure 03_image122
    IV-3;
    Figure 03_image124
    IV-4;
    Figure 03_image126
    IV-5;
    Figure 03_image128
    IV-6;
    Figure 03_image130
    IV-7;
    Figure 03_image132
    IV-8; R6 和R7 各自獨立地具有與請求項1相同的限定範圍。
  10. 一種液晶顯示器件,其特徵在於:該液晶顯示器件包括如請求項1-9中任一項所述的液晶化合物。
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