CN107459993B - 一种稳定剂及包含该稳定剂的液晶组合物 - Google Patents

一种稳定剂及包含该稳定剂的液晶组合物 Download PDF

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CN107459993B
CN107459993B CN201610392022.6A CN201610392022A CN107459993B CN 107459993 B CN107459993 B CN 107459993B CN 201610392022 A CN201610392022 A CN 201610392022A CN 107459993 B CN107459993 B CN 107459993B
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carbon atoms
liquid crystal
fluorine
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CN107459993A (zh
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温刚
孟劲松
尚洪勇
张丽梅
员国良
张兴
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Shijiazhuang Chengzhi Yonghua Display Material Co Ltd
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Abstract

本发明公开了一种式Ⅰ所示新型稳定剂，
Figure DDA0001010458680000011
本发明还公开了一种包含式Ⅰ化合物的液晶组合物。本发明所公开的液晶组合物具有低粘度γ1、适中的介电各向异性Δε、适中的光学各向异性Δn，最主要的，具有高的可靠性，可以实现液晶显示的快速响应。

Description

一种稳定剂及包含该稳定剂的液晶组合物
技术领域
本发明涉及液晶显示领域，具体涉及一种新型稳定剂，及包含此种稳定剂的液晶组合物及包含该液晶组合物的液晶显示元件或液晶显示器。
背景技术
目前，液晶化合物的应用范围拓展的越来越广，其可应用于多种类型的显示器、电光器件、传感器等中。用于上述显示领域的液晶化合物的种类繁多，其中向列相液晶应用最为广泛。向列相液晶已经应用在无源TN、STN矩阵显示器和具有TFT有源矩阵的***中。
对于薄膜晶体管技术(TFT-LCD)应用领域，近年来市场虽然已经非常巨大，技术也逐渐成熟，但人们对显示技术的要求也在不断的提高，尤其是在实现快速响应，降低驱动电压以降低功耗等方面。液晶材料作为液晶显示器重要的光电子材料之一，对改善液晶显示器的性能发挥重要的作用。
作为液晶材料，需要具有良好的化学和热稳定性以及对电场和电磁辐射的稳定性。而作为薄膜晶体管技术(TFT-LCD)用液晶材料，不仅需要具有如上稳定性外，还应具有较宽的向列相温度范围、合适的双折射率各向异性、非常高的电阻率、良好的抗紫外线性能、高电荷保持率以及低蒸汽压等性能。
对于动态画面显示应用，消除显示画面残影和拖尾，要求液晶具有很快的响应速度，因此要求液晶具有较低的旋转粘度γ1；另外，对于便携式设备，为了降低设备能耗，希望液晶的驱动电压尽可能低；而对于电视等用途的显示器来说，对于液晶的驱动电压要求不是那么的低。
目前，液晶显示应用的环境也逐渐多样化，除了液晶电视成为主流外，车载显示、手提电脑、Pad、手机等等，也逐渐占领人们的生活。此类移动设备使用环境复杂多变，就要求液晶材料具有高的热稳定性、高的光稳定性、很好的化学稳定性，对温度变化不敏感。
单纯的依靠材料本身已经不能满足如此苛刻的使用条件。人们很早就将稳定剂引入到了液晶材料当中，比如在专利DE19539141A1中引入的位阻酚稳定剂，TW201229217A公布的位阻胺稳定剂。
在为液晶材料带来稳定性提升的同时，还要求，不能过多的破坏或降低液晶材料本身的光学性能。不能失去了液晶材料本身所要求的适中的介电各向异性Δε、适中的光学各向异性Δn、具有较低的旋转粘度γ1、具有较高的弹性常数K值，可以实现快速响应。
发明内容
针对液晶材料对稳定剂越来越多的要求，我们开发了式Ⅰ所示新型稳定剂，不仅能提高液晶材料热和光的稳定性，还具有较高的清亮点，较好的低温互溶性，能给混合液晶材料带来更为优异的液晶性能，本发明的目的还在于提供一种液晶组合物及包含该液晶组合物的液晶显示元件或液晶显示器，该液晶组合物具有较低的粘度，可以实现快速响应，同时具有适中的介电各向异性Δε、适中的光学各向异性Δn、高的对热和光的稳定性。包含该液晶组合物的液晶显示元件或液晶显示器具有较宽的向列相温度范围、合适的双折射率各向异性、非常高的电阻率、良好的抗紫外线性能、高电荷保持率以及低蒸汽压等性能。
为了实现上述有益技术效果，本发明提供了一种式Ⅰ所示稳定剂：
Figure BDA0001010458660000021
其中，M表示环戊基、环丁基或环丙基；
Z1、Z2各自独立地表示单键、-CH2-、-CH2CH2-、-O-、-CH2O-、-OCH2-或-COO-；
Figure BDA0001010458660000022
表示
Figure BDA0001010458660000023
和/或
Figure BDA0001010458660000024
中的一种或两种；
n表示0、1或2。
式Ⅰ所示稳定剂，优选自如下结构：
Figure BDA0001010458660000025
Figure BDA0001010458660000031
其中，M代表环戊基、环丁基或环丙基；
Figure BDA0001010458660000032
表示
Figure BDA0001010458660000033
Z1、Z2各自独立地表示单键、-CH2-、-CH2CH2-、-O-、-CH2O-、-OCH2-或-COO-。
式Ⅰ-a所示稳定剂进一步优选如下结构：
Figure BDA0001010458660000034
Figure BDA0001010458660000041
式Ⅰ-b所示稳定剂，进一步优选自如下结构：
Figure BDA0001010458660000042
Figure BDA0001010458660000051
上述结构除了提供了优异的稳定液晶可靠性的作用外，还具有优异的液晶性能，较高的清亮点，较低的粘度。在添加上述稳定剂后，液晶本身光学性能不会变差。
式Ⅰ-c所示稳定剂，进一步优选自如下结构：
Figure BDA0001010458660000052
本发明还提供了一种新型液晶组合物，本发明所提供的液晶组合物包含一种或多种如前所述的稳定剂。
本发明所提供的液晶组合物还可以包含式Ⅱ1至Ⅱ14化合物的一种或多种化合物；
Figure BDA0001010458660000053
Figure BDA0001010458660000061
其中，R0、R0’、R1、R1’、R2、R2’、R3、R3’各自独立地表示碳原子数为1-10的烷基、碳原子数为2-10的烯基或碳原子数为1-10的烷氧基，其中任意的-CH2-能被-O-取代，任意的氢能被F取代；
(F)各自独立地表示H或F。
本发明所提供的液晶组合物，具备高K值，低粘度，高清亮点，合适的折射率各向异性，特别适用于TFT液晶显示，特别是，由于其特别优越的可靠性，在高端IPS-TFT，VA-TFT，PSVA-TFT液晶中具有很好的应用价值。
作为优选方案，所述液晶组合物中式Ⅰ所示化合物总质量百分比含量优选为0.001-5％；式Ⅱ-1至Ⅱ-10所示化合物总质量百分比含量优选为1-60％；Ⅱ-11至Ⅱ-14所示化合物质量百分比含量优选为0-30％，进一步优选为1-30％；
作为优选，R0、R2各自独立地表示碳原子数为1-5的烷基或碳原子数为2-5的烯基，R1，R3各自独立地表示碳原子数为1-5的烷基或烷氧基。
本发明液晶组合物可以为为正性液晶组合物，所述液晶组合物还可以包含一种或多种式Ⅲ所示化合物
Figure BDA0001010458660000071
其中，R4表示碳原子数为1-10的烷基、氟取代的碳原子数为1-10的烷基、碳原子数为1-10的烷氧基、氟取代的碳原子数为1-10的烷氧基、碳原子数为2-10的链烯基、氟取代的碳原子数为2-10的链烯基、碳原子数为3-8的链烯氧基或氟取代的碳原子数为3-8的链烯氧基，且R4中任一个或多个CH2可以被环戊基、环丁基或环丙基替代；
Figure BDA0001010458660000072
各自独立地表示：
Figure BDA0001010458660000073
和/或
Figure BDA0001010458660000074
中的一种或两种；
m表示1或2；
Z3、Z4各自独立地表示单键、-CF2O-、-CH2CH2-或-CH2O-；
Y2表示F、氟取代的碳原子数为1-5的烷基、氟取代的碳原子数为1-5的烷氧基、氟取代的碳原子数为2-5的链烯基或氟取代的碳原子数为3-8的链烯氧基。
式Ⅲ所示化合物优选为Ⅲ1-Ⅲ22化合物
Figure BDA0001010458660000081
Figure BDA0001010458660000091
Figure BDA0001010458660000101
其中，X1、X2各自独立的表示H或F，且不能同时为F，也不能同时为H；
R4各自独立地表示碳原子数为1-10的烷基、氟取代的碳原子数为1-10的烷基、碳原子数为1-10的烷氧基、氟取代的碳原子数为1-10的烷氧基、碳原子数为2-10的链烯基、氟取代的碳原子数为2-10的链烯基、碳原子数为3-8的链烯氧基或氟取代的碳原子数为3-8的链烯氧基，且R4中任一个CH2可以被环戊基、环丁基或环丙基替代；
(F)各自独立地表示H或F；
Y2各自独立地表示F、氟取代的碳原子数为1-5的烷基、氟取代的碳原子数为1-5的烷氧基、氟取代的碳原子数为2-5的链烯基或氟取代的碳原子数为3-8的链烯氧基。
本发明所提供的液晶组合物可以为负性液晶组合物，还可以包含一种或多种式Ⅳ所示的化合物
Figure BDA0001010458660000102
其中，R5、R6各自独立地表示碳原子数为1-10的烷基、氟取代的碳原子数为1-10的烷基、碳原子数为1-10的烷氧基、氟取代的碳原子数为1-10的烷氧基、碳原子数为2-10的链烯基、氟取代的碳原子数为2-10的链烯基、碳原子数为3-8的链烯氧基或氟取代的碳原子数为3-8的链烯氧基，且R5、R6中任一个CH2可以被环戊基、环丁基或环丙基替代；
Z5、Z6各自独立地表示单键、-CH2CH2-、-CH2O-；
Figure BDA0001010458660000111
各自独立地表示
Figure BDA0001010458660000112
其中一种；
m表示1或2；
n表示0、1或2。
式Ⅳ所示化合物优选为Ⅳ1-Ⅳ11化合物
Figure BDA0001010458660000113
Figure BDA0001010458660000121
其中，R5、R6各自独立地表示碳原子数为1-10的烷基、氟取代的碳原子数为1-10的烷基、碳原子数为1-10的烷氧基、氟取代的碳原子数为1-10的烷氧基、碳原子数为2-10的链烯基、氟取代的碳原子数为2-10的链烯基、碳原子数为3-8的链烯氧基或氟取代的碳原子数为3-8的链烯氧基，且R5、R6中任一个CH2可以被环戊基、环丁基或环丙基替代。
本发明液晶组合物可以为负性液晶组合物，还可以包含一种或多种式Ⅴ所示的化合物
Figure BDA0001010458660000122
其中，R7、R8各自独立地表示碳原子数为1-10的烷基、氟取代的碳原子数为1-10的烷基、碳原子数为1-10的烷氧基、氟取代的碳原子数为1-10的烷氧基、碳原子数为2-10的链烯基、氟取代的碳原子数为2-10的链烯基、碳原子数为3-8的链烯氧基或氟取代的碳原子数为3-8的链烯氧基，且R7、R8中任一个CH2可以被环戊基、环丁基或环丙基替代。
式Ⅴ所示的化合物优选为：
Figure BDA0001010458660000123
R81表示碳原子数为1-10的烷氧基。
液晶组合物各成分的不同比例，会表现出略有差异的性能，比如介电各向异性Δε、光学各向异性Δn、液晶的向列相转化为液体的转变温度点CP、低温下稳定性都会有所差异，可以应用于不同类型的显示器件，但是相同的特点是其旋转粘度γ1较低。应用于液晶显示器件，可以实现快速响应。
本发明所提供的液晶化合物中还可以加入手性剂。
手性剂优选(左旋或右旋)：
Figure BDA0001010458660000131
本发明还涉及包含上述任意一种液晶组合物的液晶显示元件或液晶显示器；所述液晶显示元件或液晶显示器为有源矩阵显示元件或显示器或无源矩阵显示元件或显示器。
所述液晶显示元件或液晶显示器优选有源矩阵寻址液晶显示元件或液晶显示器。
所述有源矩阵显示元件或显示器具体为TN-TFT或IPS-TFT液晶显示元件或显示器。
本发明所提供的液晶组合物具有较低的粘度，可以实现快速响应，同时具有适中的介电各向异性Δε、适中的光学各向异性Δn、高的对热和光的稳定性。
包含本发明所提供的液晶组合物的液晶材料，不但具有良好的化学和热稳定性以及对电场和电磁辐射的稳定性。而且，作为薄膜晶体管技术(TFT-LCD)用液晶材料，还具有较宽的向列相温度范围、合适的双折射率各向异性、非常高的电阻率、良好的抗紫外线性能、高电荷保持率以及低蒸汽压等性能。
附图说明
图1为式Ⅰ-a-1所示化合物的质谱图；
图2为式Ⅰ-b-1所示化合物的质谱图。
具体实施方式
下面结合具体实施例对本发明作进一步阐述，但本发明并不限于以下实施例。所述方法如无特别说明均为常规方法。所述原料如无特别说明均能从公开商业途径而得。所述百分比如无特别说明，均为质量百分比。
下述实施例中，
CP表示清亮点，直接使用WRX-1S显微热分析仪测定，设定升温速率为3℃/min。
Δn表示光学各向异性(589nm，20℃)，
Δε表示介电各向异性(25℃，1KHz，HP4284A，5.2微米TN左旋盒)，
γ1表示20℃时旋转粘度(mpas)，VHR(％)代表电荷保持率(5V,60Hz,20℃)，ρ(×1013Ω·cm)代表电阻率(20℃)
电压保持率VHR(％)的测试仪与电阻率ρ(×1013Ω·cm)均为TOYO06254和TOYO6517型液晶物性评价***(测试温度20℃，时间16ms，测试盒为7.0微米)
反应过程一般通过TLC监控反应的进程，反应结束的后处理一般是水洗、提取、合并有机相后干燥、减压下蒸除溶剂，以及重结晶、柱层析，本领域的技术人员都能够按照下面的描述来实现本发明。
本发明申请实施例液晶单体结构用代码表示，液晶环结构、端基、连接基团的代码表示方法见下表(一)、表(二)
表(一)：环结构的对应代码
Figure BDA0001010458660000141
Figure BDA0001010458660000151
表(二)：端基与链接基团的对应代码
Figure BDA0001010458660000152
Figure BDA0001010458660000161
举例：
Figure BDA0001010458660000162
C(5)CCV1
Figure BDA0001010458660000163
3B B(3F)B(3F,5F)CF2O B(3F,5F)F
路线：
Figure BDA0001010458660000164
实施例1
Figure BDA0001010458660000165
路线：
Figure BDA0001010458660000166
操作流程：
2L三口瓶中加入4-环戊基环己基苯酚(95g，0.389mol)，500ml石油醚，搅拌5min，加入39g浓硫酸，升温至70℃(水浴)，滴加叔丁醇(151g，2.04mol)与100ml石油醚混合液，滴加时间2h，控温70-72℃，滴完，保温4h；直接分液，分去硫酸，加入300ml水，1LEA，搅拌5min，分液，有机相直接旋干，1倍石油醚，3倍乙醇加热溶解产品，冰箱冷冻6小时，吸滤，重复结晶3次，得57g，GC：99.88％，收率40％。
实施例2
Figure BDA0001010458660000171
路线：
Figure BDA0001010458660000172
2L三口瓶中加入4-(5’-环丁基四氢吡喃)苯酚(93g，0.4mol)，500ml石油醚，搅拌5min，加入39g浓硫酸，升温至70℃(水浴)，滴加叔丁醇(151g，2.04mol)与100ml石油醚混合液，滴加时间2h，控温70-72℃，滴完，保温4h；直接分液，分去硫酸，加入300ml水，1L乙酸乙酯，搅拌5min，分液，有机相直接旋干，1倍石油醚，3倍乙醇加热溶解产品，冰箱冷冻6小时，吸滤，重复结晶4次，得50g，GC：99.66％，收率35％。
实施例3
Figure BDA0001010458660000173
路线：
Figure BDA0001010458660000181
1L三口瓶中加入4-(5’-环丙基-1’,3’-二氧六环)苯酚(44g，0.2mol)，300ml石油醚，搅拌5min，加入20g浓硫酸，升温至70℃(水浴)，滴加叔丁醇(74g，1mol)与50ml石油醚混合液，滴加时间2h，控温70-72℃，滴完，保温4h；直接分液，分去硫酸，加入200ml水，500mL乙酸乙酯，搅拌5min，分液，有机相直接旋干，1倍石油醚，3倍乙醇加热溶解产品，冰箱冷冻6小时，吸滤，重复结晶4次，得33g，GC：99.5％，收率50％。
实施例4
Figure BDA0001010458660000182
路线
Figure BDA0001010458660000183
1L三口瓶中加入4’-环戊基-4-羟基-1,1’-联苯(47.6g，0.2mol)，300ml石油醚，搅拌5min，加入20g浓硫酸，升温至70℃(水浴)，滴加叔丁醇(74g，1mol)与50ml石油醚混合液，滴加时间2h，控温70-72℃，滴完，保温4h；直接分液，分去硫酸，加入200ml水，500mL乙酸乙酯，搅拌5min，分液，有机相直接旋干，1倍石油醚，3倍乙醇加热溶解产品，冰箱冷冻6小时，吸滤，重复结晶4次，得60g，GC：99.9％，收率85％。
实施例5
Figure BDA0001010458660000184
路线
Figure BDA0001010458660000191
2L三口瓶中加入4-环丙基苯酚(53.6g，0.4mol)，500ml石油醚，搅拌5min，加入39g浓硫酸，升温至70℃(水浴)，滴加叔丁醇(151g，2.04mol)与100ml石油醚混合液，滴加时间2h，控温70-72℃，滴完，保温4h；直接分液，分去硫酸，加入300ml水，1L乙酸乙酯，搅拌5min，分液，有机相直接旋干，1倍石油醚，3倍乙醇加热溶解产品，冰箱冷冻6小时，吸滤，重复结晶3次，得40g，GC：99.6％，收率40％。
实施例6
Figure BDA0001010458660000192
路线：
Figure BDA0001010458660000193
1L三口瓶中加入4-(环戊基氧基)苯酚(35.6g，0.2mol)，300ml石油醚，搅拌5min，加入20g浓硫酸，升温至70℃(水浴)，滴加叔丁醇(74g，1mol)与50ml石油醚混合液，滴加时间2h，控温70-72℃，滴完，保温4h；直接分液，分去硫酸，加入200ml水，500mL乙酸乙酯，搅拌5min，分液，有机相直接旋干，1倍石油醚，3倍乙醇加热溶解产品，冰箱冷冻6小时，吸滤，重复结晶4次，得29g，GC：99.75％，收率50％。
实施例7
Figure BDA0001010458660000194
Figure BDA0001010458660000201
1L三口瓶中加入4-(环戊基甲氧基)苯酚(38.4g，0.2mol)，300ml石油醚，搅拌5min，加入20g浓硫酸，升温至70℃(水浴)，滴加叔丁醇(74g，1mol)与50ml石油醚混合液，滴加时间2h，控温70-72℃，滴完，保温4h；直接分液，分去硫酸，加入200ml水，500mL乙酸乙酯，搅拌5min，分液，有机相直接旋干，1倍石油醚，3倍乙醇加热溶解产品，冰箱冷冻6小时，吸滤，重复结晶4次，得27.4g，GC：99.65％，收率45％。
实施例8
Figure BDA0001010458660000202
2L三口瓶中加入4-环丁基乙基苯酚(70.4g，0.4mol)，500ml石油醚，搅拌5min，加入39g浓硫酸，升温至70℃(水浴)，滴加叔丁醇(151g，2.04mol)与100ml石油醚混合液，滴加时间2h，控温70-72℃，滴完，保温4h；直接分液，分去硫酸，加入300ml水，1L乙酸乙酯，搅拌5min，分液，有机相直接旋干，1倍石油醚，3倍乙醇加热溶解产品，冰箱冷冻6小时，吸滤，重复结晶3次，得48.4g，GC：99.7％，收率42％。
实施例9
Figure BDA0001010458660000203
2L三口瓶中加入4-环丙基甲基苯酚(59.2g，0.4mol)，500ml石油醚，搅拌5min，加入39g浓硫酸，升温至70℃(水浴)，滴加叔丁醇(151g，2.04mol)与100ml石油醚混合液，滴加时间2h，控温70-72℃，滴完，保温4h；直接分液，分去硫酸，加入300ml水，1L乙酸乙酯，搅拌5min，分液，有机相直接旋干，1倍石油醚，3倍乙醇加热溶解产品，冰箱冷冻6小时，吸滤，重复结晶3次，得41.6g，GC：99.6％，收率40％。
以以下液晶组合物作为母体MUTY
液晶单体代码 含量(％)
3CCV 10
2CCB(3F)O1 6
2CCBO1 6
1BB5 8
3CBO2 6
3CCB(3F)2 6
3CCB2 5
2CCB(3F,4F) 12
2CCBOCF3 8
C(5)BB(3F,5F)CF<sub>2</sub>OB(3F,4F,5F) 17
C(5)C(3O)BB(3F,5F)CF<sub>2</sub>OB(3F,4F,5F) 6
3CCBB(3F,4F) 5
2CBB(2F)B3 5
分别添加不同结构的稳定剂500ppm，灌注液晶盒后，进行UV照射(5000mJ)实验，高热120℃保持三小时保存实验，测试其VHR数据，对比如下：
Figure BDA0001010458660000211
Figure BDA0001010458660000221
其中BHT代表
Figure BDA0001010458660000222
T001代表
Figure BDA0001010458660000223
从上表可以看出，本发明所提供的稳定剂，相对于现有技术有更大的优势，对混合液晶能提供更好热抗性，从而为满足TFT显示对混合液晶越来越高的可靠性要求提供更好的保障。
本发明实施例所提供的式Ⅰ所代表的化合物作为添加剂应用于液晶组合物中，是在液晶组合物组分中额外添加，例如，添加1％的式Ⅰ-a-1，则表示为：
其他组分：100％
式Ⅰ-a-1：1％。
实施例10
Figure BDA0001010458660000224
Figure BDA0001010458660000231
实施例11
Figure BDA0001010458660000232
Figure BDA0001010458660000241
实施例12
Figure BDA0001010458660000242
Figure BDA0001010458660000251
实施例13
Figure BDA0001010458660000252
实施例14
Figure BDA0001010458660000261
实施例15
Figure BDA0001010458660000262
Figure BDA0001010458660000271
实施例16
Figure BDA0001010458660000272
Figure BDA0001010458660000281
实施例17
Figure BDA0001010458660000282
实施例18
Figure BDA0001010458660000283
Figure BDA0001010458660000291
由以上实施例可以看出：本发明的液晶组合物具有较低的旋转粘度γ1，用于液晶显示，可以实现快速响应，同时具有适中的介电各向异性Δε、适中的光学各向异性Δn、高的对热的稳定性。尤其适合于TN、IPS、VA模式用液晶材料。

Claims (11)

1.一种式Ⅰ所示稳定剂：
Figure FDA0002526233450000011
其中，M表示环戊基、环丁基或环丙基；
Z1、Z2各自独立地表示单键、-CH2-、-CH2CH2-、-O-、-CH2O-、-OCH2-或-COO-；
Figure FDA0002526233450000012
表示
Figure FDA0002526233450000013
和/或
Figure FDA0002526233450000014
中的一种或两种；
n表示1或2。
2.根据权利要求1所述的稳定剂，其特征在于：所述式Ⅰ所示稳定剂，选自如下结构：
Figure FDA0002526233450000015
其中，M代表环戊基、环丁基或环丙基；
Figure FDA0002526233450000016
表示
Figure FDA0002526233450000017
Z1表示单键、-CH2-、-CH2CH2-、-O-、-CH2O-、-OCH2-或-COO-。
3.根据权利要求2所述的稳定剂，其特征在于，所述式Ⅰ-a所示稳定剂，选自如下结构：
Figure FDA0002526233450000021
Figure FDA0002526233450000031
所述式Ⅰ-b所示稳定剂，选自如下结构：
Figure FDA0002526233450000032
4.包含权利要求1-3中任一所述稳定剂的液晶组合物，其特征在于：所述液晶组合物包含式Ⅱ1至Ⅱ14所示化合物中的一种或多种化合物；
Figure FDA0002526233450000033
Figure FDA0002526233450000041
其中，R0、R0’、R1、R1’、R2、R2’、R3、R3’各自独立地表示碳原子数为1-10的烷基、碳原子数为2-10的烯基或碳原子数为1-10的烷氧基，其中任意的-CH2-能被-O-取代，任意的氢能被F取代；
(F)各自独立地表示H或F。
5.根据权利要求4所述的液晶组合物，其特征在于，所述液晶组合物中式Ⅰ所示化合物总质量百分比含量为0.001-5％；式Ⅱ-1至Ⅱ-10所示化合物总质量百分比含量为1-60％；Ⅱ-11至Ⅱ-14所示化合物质量百分比含量为0-30％；
其中，R0、R2各自独立地表示碳原子数为1-5的烷基或碳原子数为2-5的烯基，R1，R3各自独立地表示碳原子数为1-5的烷基或烷氧基。
6.根据权利要求4所述的液晶组合物，其特征在于，所述液晶组合物为正性液晶组合物，还包含一种或多种式Ⅲ所示化合物
Figure FDA0002526233450000051
其中，R4表示碳原子数为1-10的烷基、氟取代的碳原子数为1-10的烷基、碳原子数为1-10的烷氧基、氟取代的碳原子数为1-10的烷氧基、碳原子数为2-10的链烯基、氟取代的碳原子数为2-10的链烯基、碳原子数为3-8的链烯氧基或氟取代的碳原子数为3-8的链烯氧基，且R4中任一个或多个CH2可以被环戊基、环丁基或环丙基替代；
Figure FDA0002526233450000052
各自独立地表示：
Figure FDA0002526233450000053
和/或
Figure FDA0002526233450000054
中的一种或两种；
m表示1或2；
Z3、Z4各自独立地表示单键、-CF2O-、-CH2CH2-或-CH2O-；
Y2表示F、氟取代的碳原子数为1-5的烷基、氟取代的碳原子数为1-5的烷氧基、氟取代的碳原子数为2-5的链烯基或氟取代的碳原子数为3-8的链烯氧基。
7.根据权利要求6所述的液晶组合物，其特征在于，所述一种或多种式Ⅲ所示化合物为Ⅲ1-Ⅲ22所示化合物中的一种或多种化合物
Figure FDA0002526233450000061
Figure FDA0002526233450000071
Figure FDA0002526233450000081
其中，X1、X2各自独立的表示H或F，且不能同时为F，也不能同时为H；
R4各自独立地表示碳原子数为1-10的烷基、氟取代的碳原子数为1-10的烷基、碳原子数为1-10的烷氧基、氟取代的碳原子数为1-10的烷氧基、碳原子数为2-10的链烯基、氟取代的碳原子数为2-10的链烯基、碳原子数为3-8的链烯氧基或氟取代的碳原子数为3-8的链烯氧基，且R4中任一个CH2可以被环戊基、环丁基或环丙基替代；
(F)各自独立地表示H或F；
Y2各自独立地表示F、氟取代的碳原子数为1-5的烷基、氟取代的碳原子数为1-5的烷氧基、氟取代的碳原子数为2-5的链烯基或氟取代的碳原子数为3-8的链烯氧基。
8.根据权利要求4所述的液晶组合物，其特征在于，所述液晶组合物为负性液晶组合物，还包含一种或多种式Ⅳ所示的化合物
Figure FDA0002526233450000082
其中，R5、R6各自独立地表示碳原子数为1-10的烷基、氟取代的碳原子数为1-10的烷基、碳原子数为1-10的烷氧基、氟取代的碳原子数为1-10的烷氧基、碳原子数为2-10的链烯基、氟取代的碳原子数为2-10的链烯基、碳原子数为3-8的链烯氧基或氟取代的碳原子数为3-8的链烯氧基，且R5、R6中任一个CH2可以被环戊基、环丁基或环丙基替代；
Z5、Z6各自独立地表示单键、-CH2CH2-、-CH2O-；
Figure FDA0002526233450000091
各自独立地表示
Figure FDA0002526233450000092
Figure FDA0002526233450000093
其中一种；
m表示1或2；
n表示0、1或2。
9.根据权利要求8所述的液晶组合物，其特征在于，所述一种或多种式Ⅳ所示的化合物为Ⅳ1-Ⅳ11所示化合物中的一种或多种化合物
Figure FDA0002526233450000094
Figure FDA0002526233450000101
其中，R5、R6各自独立地表示碳原子数为1-10的烷基、氟取代的碳原子数为1-10的烷基、碳原子数为1-10的烷氧基、氟取代的碳原子数为1-10的烷氧基、碳原子数为2-10的链烯基、氟取代的碳原子数为2-10的链烯基、碳原子数为3-8的链烯氧基或氟取代的碳原子数为3-8的链烯氧基，且R5、R6中任一个CH2可以被环戊基、环丁基或环丙基替代。
10.根据权利要求4、5、8、9中任一所述液晶组合物，其特征在于，所述液晶组合物为负性液晶组合物，还包含一种或多种式Ⅴ所示的化合物
Figure FDA0002526233450000111
其中，R7、R8各自独立地表示碳原子数为1-10的烷基、氟取代的碳原子数为1-10的烷基、碳原子数为1-10的烷氧基、氟取代的碳原子数为1-10的烷氧基、碳原子数为2-10的链烯基、氟取代的碳原子数为2-10的链烯基、碳原子数为3-8的链烯氧基或氟取代的碳原子数为3-8的链烯氧基，且R7、R8中任一个CH2可以被环戊基、环丁基或环丙基替代。
11.一种包含权利要求4至10中任一所述液晶组合物的液晶显示元件或液晶显示器，其特征在于，所述液晶显示元件或液晶显示器为有源矩阵显示元件或显示器，或者无源矩阵显示元件或显示器。
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