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 PDFInfo
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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
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: ;
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
、、-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、環和環各自獨立地表示、、、、、、、、或;
所述n2表示0、1或2,當 n2表示2時,環相同或不同;
所述環和環各自獨立地表示、、、、、、、、、、或;
所述n3表示0、1或2,當 n3表示2時,環相同或不同;
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:III-1;III-2;III-3;III-4;III-5;III-6;III-7;III-8;III-9;III-10;III-11;III-12;III-13;III-14;III-15;III-16;III-17;III-18;III-19;III-20;III-21;III-22;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:IV-1;IV-2;IV-3;IV-4;IV-5;IV-6;IV-7;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 |
C | 1,4-亞環己基 | |
C(N) | 1-氰基-1,4-亞環己基 | |
P | 1,4-亞苯基 | |
I | 2,3-二氫-茚-2,5-二基 | |
G | 2-氟-1,4-亞苯基 | |
U | 2,6-二氟-1,4-亞苯基 | |
W | 2,3-二氟-1,4-亞苯基 | |
P(F,Cl) | 2-氯-3-氟-1,4-亞苯基 | |
P(2N) | 2,3-二氰基-1,4-亞苯基 | |
W(1) | 2,3-二氟-6-甲基-1,4-亞苯基 | |
Na(3F) | 1,2,8-三氟-3,7-亞萘基 | |
A | 2-氧代六環 | |
AI | 3-氧代六環 | |
D | 1,3-二氧六環-2,5-二基 | |
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 |
V(2F) | 二氟烯基 | |
-COO- | E | 酯橋鍵 |
-Cn H2n+1 或-Cm H2m+1 | n或m | 烷基 |
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:,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
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。
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℃) |
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。
Claims (10)
- 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: ; 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、環和環各自獨立地表示、、、、、、、、或; n2表示0、1或2,當n2表示2時,環相同或不同; 環和環各自獨立地表示、、、、、、、、、、或; n3表示0、1或2,當n3表示2時,環相同或不同; 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。
- 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%。
- 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%。
- 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%。
- 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%。
- 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:III-1;III-2;III-3;III-4;III-5;III-6;III-7;III-8;III-9;III-10;III-11;III-12;III-13;III-14;III-15;III-16;III-17;III-18;III-19;III-20;III-21;III-22;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。
- 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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