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CN107760318B - 液晶组合物及液晶显示器件 - Google Patents

液晶组合物及液晶显示器件 Download PDF

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CN107760318B
CN107760318B CN201610671306.9A CN201610671306A CN107760318B CN 107760318 B CN107760318 B CN 107760318B CN 201610671306 A CN201610671306 A CN 201610671306A CN 107760318 B CN107760318 B CN 107760318B
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liquid crystal
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formula
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CN107760318A (zh
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徐海彬
韩文明
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Jiangsu Hecheng Display Technology Co Ltd
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Jiangsu Hecheng Display Technology Co Ltd
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Priority to CN201610671306.9A priority Critical patent/CN107760318B/zh
Priority to KR1020187035604A priority patent/KR102190145B1/ko
Priority to PCT/CN2017/095927 priority patent/WO2018032985A1/zh
Priority to US16/325,240 priority patent/US11053441B2/en
Priority to TW106127611A priority patent/TWI667335B/zh
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Abstract

本发明提供一种液晶组合物及其应用,该液晶组合物包含15‑30重量%的三种或更多种符合通式Ⅰ的化合物;所述通式Ⅰ必须包含至少两种通式Ⅰ‑1的化合物;其中,以所述液晶组合物的总重量计,所述通式Ⅰ‑1的化合物的总量不低于10%,且每一种通式I‑1的化合物的含量不高于8%。本发明的液晶组合物具有适当高的光学各向异性、较高的介电各向异性、较低的阈值电压、合适的弹性常数、合适的向列相温度范围,良好的可靠性及热稳定性,以及良好的低温互溶性。

Description

液晶组合物及液晶显示器件
技术领域
本发明涉及一种液晶组合物,特别涉及一种具有适当高的光学各向异性、较高的介电各向异性、较低的阈值电压、合适的向列相温度范围,良好的可靠性及热稳定性,以及良好的低温互溶性的液晶组合物。本发明还涉及所述液晶组合物在液晶显示器件中的应用。
背景技术
液晶材料是在一定的温度下,既具有液体的流动性又具有晶体的各向异性的有机棒状小分子化合物的混合物。液晶材料因其具有光学各向异性及介电各项异性的特点而被广泛应用于电子计算器、汽车仪表、电视机、计算机等器件液晶显示元件中。
液晶材料按相变温度划分,可分为常温液晶(相变温度范围为:-10℃~60℃)和宽温液晶(相变温度范围为:-20℃~70℃),用不同相变温度的液晶材料所制造的液晶显示器,其应用地点有所不同。随着液晶显示器件应用范围的不断扩大,人们对器件的工作温度范围也提出了更高的要求,以适应各种恶劣的使用环境。为了扩大液晶显示器的工作范围,液晶显示材料还需要有宽的向列相温度范围,以满足在各种环境中均能保持良好显示的要求。
对于液晶显示元件来讲,根据液晶的显示模式分为PC(phase change,相变)、TN(twist nematic,扭曲向列)、STN(super twisted nematic,超扭曲向列)、ECB(electrically controlled birefringence,电控双折射)、OCB(optically compensatedbend,光学补偿弯曲)、IPS(in-plane switching,共面转变)、VA(vertical alignment,垂直配向)等类型。液晶显示元件根据光源的类型分为利用自然光的反射型、利用背光的透过型、以及利用自然光和背光两种光源的半透过型。
对于液晶显示器来说,具备良好的化学和热稳定性、良好的对电场和电磁辐射的稳定性、适当的光学各向异性等特性的液晶化合物与液晶介质是符合目前需求的。由于液晶通常作为多种组分的混合物使用,各组分之间的彼此互溶则显得尤为重要,而依据不同的电池类型和应用领域,液晶必须要满足不同的要求,如响应速度、介电各向异性和光学各向异性等。如具有较高的介电各向异性的液晶组合物,可以降低液晶的阈值电压,进一步降低消耗电功率。
但是在现有技术(如EP0673986、DE19528106、DE19528107等)中显著存在的缺点是较低电阻率且操作电压过高等。另外,低温存储稳定性较差也是现有许多液晶材料的缺陷,如WO9732942A1。
在现有技术存在介电各向异性较小、可靠性及低温稳定较差等问题的情况下,本发明在致力于满足液晶材料多方面指标的前提下,制备出具有适当高的光学各向异性、较低的阈值电压,合适的向列相温度范围、较高的介电各向异性、良好的可靠性及光热稳定性,以及良好的低温互溶性的液晶组合物,解决了现有技术中的局限,扩大了液晶组合物的应用领域。
发明内容
本发明的发明目的是提供一种液晶组合物,所述液晶组合物在满足具有适当高的光学各向异性、较低的阈值电压、合适的弹性常数,合适的向列相温度范围基础上,具有较高的介电各向异性、良好的可靠性及热稳定性,以及良好的低温互溶性。包含所述液晶组合物的液晶显示器具有可靠性好、低温存储性能好的性能,在恶劣环境中仍能很好显示,且具有驱动电压低的特性。
本发明所采取的技术方案是提供一种液晶组合物,所述液晶组合物包含:
三种或更多种符合通式Ⅰ的化合物
Figure BDA0001078629890000021
其中,
R1表示碳原子数为1-5的烷基或烷氧基,或碳原子数为2-5的烯基或烯氧基;
Y1和Y2相同或不同,各自独立地表示H、F,或未被卤代或被卤代的甲基或甲氧基;
Figure BDA0001078629890000022
选自由
Figure BDA0001078629890000023
Figure BDA0001078629890000024
组成的组;
Figure BDA0001078629890000025
选自由
Figure BDA0001078629890000026
Figure BDA0001078629890000027
组成的组;
X1表示F、Cl,或未被卤代或被卤代的碳原子数为1-5的烷基或烷氧基。
在本发明的实施方案中,所述三种或三种以上符合通式Ⅰ的化合物占所述液晶组合物总重量的15-30%。
在本发明的实施方案中,所述三种或更多种符合通式Ⅰ的化合物包含至少两种通式Ⅰ-1的化合物,
Figure BDA0001078629890000031
R1、Y1、Y2和X1如通式Ⅰ中的定义;
其中,所述至少两种符合通式Ⅰ-1的化合物的总量占所述液晶组合物的总重量不低于10%,且其中每一种符合通式Ⅰ-1的化合物的含量不高于8%。
在本发明的实施方案中,调节通式Ⅰ-1的化合物结构及含量,使得包含此类液晶化合物的液晶组合物具有良好的低温存储稳定性。
在本发明的实施方案中,优选所述R1表示碳原子数为1-5的烷基,Y1、Y2和Y3相同或不同,各自独立地为H或F;X1表示F、CF3或OCF3
在本发明的一些实施方案中,优选所述通式Ⅰ-1的化合物选自由如下化合物组成的组:
Figure BDA0001078629890000032
Figure BDA0001078629890000041
Figure BDA0001078629890000042
以及
Figure BDA0001078629890000043
在本发明的实施方案中,可选地,所述三种或三种以上符合通式Ⅰ的化合物还包含:占所述液晶组合物总重量0-15%的一种或多种通式Ⅰ-2的化合物
Figure BDA0001078629890000044
其中,
R1A表示碳原子数为1-5的烷基或烷氧基,或碳原子数为2-5的烯基或烯氧基;
Y1A和Y2A相同或不同,各自独立地表示H、F,或未被卤代或被卤代的甲基或甲氧基;Y3A表示H或F;
Figure BDA0001078629890000045
选自由
Figure BDA0001078629890000046
组成的组;且当
Figure BDA0001078629890000051
Figure BDA0001078629890000052
时,Y3A表示H;
X1A表示F、Cl,或未被卤代或被卤代的碳原子数为1-5的烷基或烷氧基。
在本发明的一些实施方案中,所述R1A表示碳原子数为1-5的烷基,Y1A、Y2A和Y3A相同或不同,各自独立地为H或F;X1A表示表示F、CF3或OCF3
在本发明的一些实施方案中,优选所述通式Ⅰ-2的化合物选自由如下化合物组成的组:
Figure BDA0001078629890000053
Figure BDA0001078629890000061
Figure BDA0001078629890000062
以及
Figure BDA0001078629890000063
特别优选通式Ⅰ-2的化合物选自由如下化合物:
Figure BDA0001078629890000071
Figure BDA0001078629890000072
以及
Figure BDA0001078629890000073
在本发明的实施方案中,所述液晶组合物还包含:
占所述液晶组合物总重量10-50%的一种或多种通式Ⅱ的化合物
Figure BDA0001078629890000074
其中,
R2和R3相同或不同,各自独立地表示碳原子数为1-5的烷基或烷氧基,或碳原子数为2-5的烯基或烯氧基。
在本发明的实施方案中,优选所述R2表示碳原子数为1-5的烷基;所述R3表示碳原子数为1-5的烷基,或碳原子数为2-3的烯基。
在本发明的实施方案中,优选所述通式Ⅱ的化合物占所述液晶组合物总重量的10-48%。
在本发明的实施方案中,优选所述通式Ⅱ的化合物选自由如下化合物组成的组:
Figure BDA0001078629890000081
Figure BDA0001078629890000082
以及
Figure BDA0001078629890000083
特别优选通式Ⅱ的化合物选自由如下化合物:
Figure BDA0001078629890000084
Figure BDA0001078629890000085
以及
Figure BDA0001078629890000091
在本发明的实施方案中,所述液晶组合物还包含:
占所述液晶组合物总重量0-50%的一种或多种选自通式Ⅲ-1的化合物、通式Ⅲ-2的化合物和通式Ⅲ-3的化合物组成的组的化合物
Figure BDA0001078629890000092
其中,
R4、R5和R6相同或不同,各自独立地表示碳原子数为1-5的烷基或烷氧基,或碳原子数为2-5的烯基或烯氧基;
Y4、Y5、Y6、Y7、Y8、Y9和Y10相同或不同,各自独立地为H、F,或未被卤代或被卤代的甲基或甲氧基;
X2表示F、Cl,或未被卤代或被卤代的碳原子数为1-5的烷基或烷氧基。
在本发明的实施方案中,优选R4、R5和R6相同或不同,各自独立地表示碳原子数为1-5的烷基;所述Y4、Y5、Y6、Y7、Y8、Y9和Y10相同或不同,各自独立地为H或F;所述X2表示F或CF3
在本发明的实施方案中,优选所述通式Ⅲ-1、通式Ⅲ-2、Ⅲ-3及其组合组成的组的化合物占所述液晶组合物总重量的0-35%。
在本发明的实施方案中,优选所述通式Ⅲ-1的化合物选自由如下化合物组成的组:
Figure BDA0001078629890000093
Figure BDA0001078629890000101
Figure BDA0001078629890000102
以及
Figure BDA0001078629890000103
在本发明的实施方案中,优选所述通式Ⅲ-2的化合物选自由如下化合物组成的组:
Figure BDA0001078629890000104
Figure BDA0001078629890000111
Figure BDA0001078629890000112
以及
Figure BDA0001078629890000113
特别优选通式Ⅲ-2的化合物选自由如下化合物:
Figure BDA0001078629890000114
Figure BDA0001078629890000115
以及
Figure BDA0001078629890000116
在本发明的实施方案中,优选所述通式Ⅲ-3的化合物选自由如下化合物组成的组:
Figure BDA0001078629890000117
Figure BDA0001078629890000121
Figure BDA0001078629890000122
以及
Figure BDA0001078629890000123
特别优选通式Ⅲ-3的化合物选自由如下化合物:
Figure BDA0001078629890000124
Figure BDA0001078629890000125
以及
Figure BDA0001078629890000126
在本发明的实施方案中,所述液晶组合物还包含:
占所述液晶组合物总重量0-30%的一种或多种选自通式Ⅳ的化合物
Figure BDA0001078629890000127
其中,
R7表示碳原子数为1-5的烷基;
Y11和Y12相同或不同,各自独立地表示F、Cl,或未被卤代或被卤代的碳原子数为1-5的烷基或烷氧基;
Figure BDA0001078629890000131
选自由
Figure BDA0001078629890000132
Figure BDA0001078629890000133
组成的组;
X3表示F、Cl,或未被卤代或被卤代的碳原子数为1-5的烷基或烷氧基。
在本发明的实施方案中,所述Y11和Y12表示F;所述
Figure BDA0001078629890000134
选自由
Figure BDA0001078629890000135
Figure BDA0001078629890000136
组成的组;所述X3表示F。
更优地,所述
Figure BDA0001078629890000137
选自由
Figure BDA0001078629890000138
组成的组。
在本发明的实施方案中,优选所述通式Ⅳ的化合物选自由如下化合物组成的组:
Figure BDA0001078629890000139
Figure BDA0001078629890000141
Figure BDA0001078629890000142
以及
Figure BDA0001078629890000143
特别优选通式Ⅳ的化合物选自由如下化合物:
Figure BDA0001078629890000151
Figure BDA0001078629890000152
以及
Figure BDA0001078629890000153
在本发明的实施方案中,所述液晶组合物还包含:
占所述液晶组合物总重量0-40%的一种或多种选自由式Ⅴ-1至式Ⅴ-8化合物组成的组中的化合物
Figure BDA0001078629890000154
Figure BDA0001078629890000161
Figure BDA0001078629890000162
以及
Figure BDA0001078629890000163
其中,
R8和R9相同或不同,各自独立地表示碳原子数为1-5的烷基或烷氧基,或碳原子数为2-5的烯基或烯氧基。
在本发明的实施方案中,所述R8和R9相同或不同,各自独立地表示碳原子数为1-5的烷基或烷氧基,或碳原子数为2-3的烯基。
通式Ⅴ-1中,特别优选所述R8表示-C3H7,所述R9表示碳原子数为1-3的烷氧基。
通式Ⅴ-2中,特别优选所述R8表示碳原子数为3-5的烷基,所述R9表示碳原子数为1-3的烷基。
通式Ⅴ-3中,特别优选所述R8表示-C3H7或碳原子数为CH2=CHC2H4-,所述R9表示碳原子数为1-3的烷基。
通式Ⅴ-4中,特别优选所述R8表示-C3H7,所述R9表示碳原子数为1-3的烷基或烷氧基。
通式Ⅴ-5中,特别优选所述R8表示碳原子数为2-4的烷基。
通式Ⅴ-6中,特别优选所述R8表示碳原子数为3-5的烷基,所述R9表示-C3H7
通式Ⅴ-7中,特别优选所述R8表示碳原子数为3-5的烷基,所述R9表示-C3H7
通式Ⅴ-8中,特别优选所述R8表示碳原子数为2-3的烷基,所述R9表示碳原子数为2-4的烷基。
在本发明的实施方案中,所述通式Ⅰ的化合物占所述液晶组合物总重量的15-30%;所述通式Ⅱ的化合物占所述液晶组合物总重量的15-48%;所述通式Ⅲ-1、通式Ⅲ-2、Ⅲ-3及其组合组成的组的化合物占所述液晶组合物总重量的0-33%;所述通式Ⅳ的化合物占所述液晶组合物总重量的0-30%;以及所述通式Ⅴ-1至Ⅴ-8化合物占所述液晶组合物总重量的0-40%。
在本发明的实施方案中,优选地,所述通式Ⅰ的化合物占所述液晶组合物总重量的20-30%;所述通式Ⅱ的化合物占所述液晶组合物总重量的20-48%;所述通式Ⅲ-1、通式Ⅲ-2、Ⅲ-3及其组合组成的组的化合物占所述液晶组合物总重量的5-33%;所述通式Ⅳ的化合物占所述液晶组合物总重量的5-30%;以及所述通式Ⅴ-1至Ⅴ-8化合物占所述液晶组合物总重量的4-40%。
更优地,所述通式Ⅰ的化合物占所述液晶组合物总重量的20-30%;所述通式Ⅱ的化合物占所述液晶组合物总重量的25-48%;所述通式Ⅲ-1、通式Ⅲ-2、Ⅲ-3及其组合组成的组的化合物占所述液晶组合物总重量的10-33%;所述通式Ⅳ的化合物占所述液晶组合物总重量的5-28%;以及所述通式Ⅴ-1至Ⅴ-8化合物占所述液晶组合物总重量的4-40%。
作为特别优选方案,所述通式Ⅰ的化合物占所述液晶组合物总重量的20-30%;所述通式Ⅱ的化合物占所述液晶组合物总重量的25-48%;所述通式Ⅲ-1、通式Ⅲ-2、Ⅲ-3及其组合组成的组的化合物占所述液晶组合物总重量的15-33%;所述通式Ⅳ的化合物占所述液晶组合物总重量的5-20%;以及所述通式Ⅴ-1至Ⅴ-8化合物占所述液晶组合物总重量的4-31%。
本发明另一方面提供一种液晶组合物,还包含本领域技术人员已知和文献中描述的一种或多种添加剂。例如,可以加入0-15%多色染料和/或手性掺杂剂。
如下显示优选加入到根据本发明的混合物中的可能掺杂剂。
Figure BDA0001078629890000171
Figure BDA0001078629890000181
Figure BDA0001078629890000182
以及
Figure BDA0001078629890000183
在本发明的实施方案中,优选所述掺杂剂占所述液晶组合物总重量的0-5%;更优地,所述掺杂剂占所述液晶组合物总重量的0-1%。
如下提及例如可以加入到根据本发明的混合物中的稳定剂。
Figure BDA0001078629890000184
Figure BDA0001078629890000191
Figure BDA0001078629890000201
Figure BDA0001078629890000211
优选地,所述稳定剂选自如下所示的稳定剂。
Figure BDA0001078629890000212
在本发明的实施方案中,优选所述稳定剂占所述液晶组合物总重量的0-5%;更优地,所述稳定剂占所述液晶组合物总重量的0-1%;作为特别优选方案,所述稳定剂占所述液晶组合物总重量的0-0.1%。
本发明的再一方面提供一种液晶显示器件,所述液晶显示器件包含本发明的液晶组合物。
本发明通过对上述化合物进行组合实验,确定了包括上述液晶组合物的液晶介质,具有适当高的光学各项异性、较高的光学各向异性、较低的阈值电压、合适大的弹性常数、合适的向列相温度范围、良好的可靠性及热稳定性,以及良好的低温互溶性,适用于液晶显示器中,包含所述液晶组合物的液晶显示器具有可靠性好、低温存储性能好的性能,在恶劣环境中仍能很好显示,且具有驱动电压低的特性。
在本发明中如无特殊说明,所述的比例均为重量比,所有温度均为摄氏度温度,所述的响应时间数据的测试选用的盒厚为7μm。
具体实施方式
以下将结合具体实施方案来说明本发明。需要说明的是,下面的实施例为本发明的示例,仅用来说明本发明,而不用来限制本发明。在不偏离本发明主旨或范围的情况下,可进行本发明构思内的其他组合和各种改良。
为便于表达,以下各实施例中,液晶组合物的基团结构用表1所列的代码表示:
表1液晶化合物的基团结构代码
Figure BDA0001078629890000221
以如下结构式的化合物为例:
Figure BDA0001078629890000231
该结构式如用表2所列代码表示,则可表达为:nCPUF,代码中的n表示左端烷基的C原子数,例如n为“3”,即表示该烷基为-C3H7;代码中的C代表环己烷基。
以下实施例中测试项目的简写代号如下:
Cp(℃): 清亮点(向列-各向同性相转变温度)
Δn: 光学各向异性(589nm,25℃)
Δε: 介电各向异性(1KHz,25℃)
γ1: 扭转粘度(mPa*s,在25℃下)
K11: 弹性常数(“斜展”,在25℃下的pN)
K33: 弹性常数(“弯曲”,在25℃下的pN)
LTS(瓶-25℃): 低温储存时间(在-25℃下)
LTS(瓶-30℃): 低温储存时间(在-30℃下)
VHR(初始): 电压保持率(%)
VHR(高温): 150℃劣化1h后测得的电压保持率(%)
其中,折射率各向异性使用阿贝折光仪在钠光灯(589nm)光源下、20℃测试得;介电测试盒为TN90型,盒厚7μm。
Δε=ε‖-ε⊥,其中,ε‖为平行于分子轴的介电常数,ε⊥为垂直于分子轴的介电常数,测试条件:25℃、1KHz、测试盒为TN90型,盒厚7μm。
γ1使用TOYO6254型液晶物性评价系统测试得到;测试温度为25℃,测试电压为90V。
VHR(初始)是使用TOYO6254型液晶物性评价系统测试得;测试温度为60℃,测试电压为5V,测试频率为6Hz。
VHR(高温)使用TOYO6254型液晶物性评价系统测试得到;液晶在150℃劣化1h后测试得;测试温度为60℃,测试电压为5V,测试频率为6Hz。
实施例1
按表2中所列的各化合物及重量百分数配制成实施例1的液晶组合物,其填充于液晶显示器两基板之间进行性能测试,测试数据如下表所示:
表2液晶组合物配方及其测试性能
Figure BDA0001078629890000241
实施例2
按表3中所列的各化合物及重量百分数配制成实施例2的液晶组合物,其填充于液晶显示器两基板之间进行性能测试,测试数据如下表所示:
表3液晶组合物配方及其测试性能
Figure BDA0001078629890000242
实施例3
按表4中所列的各化合物及重量百分数配制成实施例3的液晶组合物,其填充于液晶显示器两基板之间进行性能测试,测试数据如下表所示:
表4液晶组合物配方及其测试性能
Figure BDA0001078629890000251
实施例4
按表5中所列的各化合物及重量百分数配制成实施例4的液晶组合物,其填充于液晶显示器两基板之间进行性能测试,测试数据如下表所示:
表5液晶组合物配方及其测试性能
Figure BDA0001078629890000261
实施例5
按表6中所列的各化合物及重量百分数配制成实施例5的液晶组合物,其填充于液晶显示器两基板之间进行性能测试,测试数据如下表所示:
表6液晶组合物配方及其测试性能
Figure BDA0001078629890000262
实施例6
按表7中所列的各化合物及重量百分数配制成实施例6的液晶组合物,其填充于液晶显示器两基板之间进行性能测试,测试数据如下表所示:
表7液晶组合物配方及其测试性能
Figure BDA0001078629890000271
实施例7
按表8中所列的各化合物及重量百分数配制成实施例7的液晶组合物,其填充于液晶显示器两基板之间进行性能测试,测试数据如下表所示:
表8液晶组合物配方及其测试性能
Figure BDA0001078629890000281
实施例8
按表9中所列的各化合物及重量百分数配制成实施例8的液晶组合物,其填充于液晶显示器两基板之间进行性能测试,测试数据如下表所示:
表9液晶组合物配方及其测试性能
Figure BDA0001078629890000291
实施例9
按表10中所列的各化合物及重量百分数配制成实施例9的液晶组合物,其填充于液晶显示器两基板之间进行性能测试,测试数据如下表所示:
表10液晶组合物配方及其测试性能
Figure BDA0001078629890000292
实施例10
按表11中所列的各化合物及重量百分数配制成实施例10的液晶组合物,其填充于液晶显示器两基板之间进行性能测试,测试数据如下表所示:
表11液晶组合物配方及其测试性能
Figure BDA0001078629890000301
实施例11
按表12中所列的各化合物及重量百分数配制成实施例11的液晶组合物,其填充于液晶显示器两基板之间进行性能测试,测试数据如下表所示:
表12液晶组合物配方及其测试性能
Figure BDA0001078629890000311
实施例12
按表13中所列的各化合物及重量百分数配制成实施例12的液晶组合物,其填充于液晶显示器两基板之间进行性能测试,测试数据如下表所示:
表13液晶组合物配方及其测试性能
Figure BDA0001078629890000312
实施例13
按表14中所列的各化合物及重量百分数配制成实施例13的液晶组合物,其填充于液晶显示器两基板之间进行性能测试,测试数据如下表所示:
表14液晶组合物配方及其测试性能
Figure BDA0001078629890000321
实施例14
按表15中所列的各化合物及重量百分数配制成实施例14的液晶组合物,其填充于液晶显示器两基板之间进行性能测试,测试数据如下表所示:
表15液晶组合物配方及其测试性能
Figure BDA0001078629890000331
实施例15
按表16中所列的各化合物及重量百分数配制成实施例15的液晶组合物,其填充于液晶显示器两基板之间进行性能测试,测试数据如下表所示:
表16液晶组合物配方及其测试性能
Figure BDA0001078629890000341
实施例16
按表17中所列的各化合物及重量百分数配制成实施例16的液晶组合物,其填充于液晶显示器两基板之间进行性能测试,测试数据如下表所示:
表17液晶组合物配方及其测试性能
Figure BDA0001078629890000351
实施例17
按表18中所列的各化合物及重量百分数配制成实施例17的液晶组合物,其填充于液晶显示器两基板之间进行性能测试,测试数据如下表所示:
表18液晶组合物配方及其测试性能
Figure BDA0001078629890000352
实施例18
按表19中所列的各化合物及重量百分数配制成实施例18的液晶组合物,其填充于液晶显示器两基板之间进行性能测试,测试数据如下表所示:
表19液晶组合物配方及其测试性能
Figure BDA0001078629890000361
从以上实施例的测试数据可见,本发明所提供的液晶组合物具有适当高的光学各项异性、较高的光学各向异性、较低的阈值电压、合适的向列相温度范围、合适的弹性常数、较低的粘度、良好的可靠性及热稳定性,以及良好的低温互溶性,适用于IPS、TN-TFT液晶显示器中。

Claims (12)

1.一种液晶组合物,其特征在于,所述液晶组合物包含:
占所述液晶组合物总重量15-30%的三种或更多种符合通式Ⅰ的化合物
Figure FDA0002811141340000011
占所述液晶组合物总重量15-48%的一种或多种通式Ⅱ的化合物
Figure FDA0002811141340000012
占所述液晶组合物总重量5-33%的一种或多种选自通式Ⅲ-1的化合物、通式Ⅲ-2的化合物和通式Ⅲ-3的化合物组成的组的化合物
Figure FDA0002811141340000013
Figure FDA0002811141340000014
以及
占所述液晶组合物总重量4-30%的一种或多种选自通式Ⅳ的化合物
Figure FDA0002811141340000015
其中,
R1、R2、R3、R4、R5和R6相同或不同,各自独立地表示碳原子数为1-5的烷基或烷氧基、或碳原子数为2-5的烯基或烯氧基;
R7表示碳原子数为1-5的烷基;
Y1、Y2、Y4、Y5、Y6、Y7、Y8、Y9和Y10相同或不同,各自独立地表示H、F、或未被卤代或被卤代的甲基或甲氧基;
Y11和Y12相同或不同,各自独立地表示F、Cl、或未被卤代或被卤代的碳原子数为1-5的烷基或烷氧基;
Figure FDA0002811141340000021
选自由
Figure FDA0002811141340000022
Figure FDA0002811141340000023
组成的组;
Figure FDA0002811141340000024
选自由
Figure FDA0002811141340000025
Figure FDA0002811141340000026
组成的组;
Figure FDA0002811141340000027
选自由
Figure FDA0002811141340000028
Figure FDA0002811141340000029
组成的组;
X1和X3相同或不同,各自独立地表示F、Cl、或未被卤代或被卤代的碳原子数为1-5的烷基或烷氧基;
X2表示F、Cl、或被卤代的碳原子数为1-5的烷基或烷氧基;
其中所述三种或更多种符合通式Ⅰ的化合物包含至少两种通式Ⅰ-1的化合物,
Figure FDA00028111413400000210
R1、Y1、Y2和X1如通式Ⅰ中的定义;
其中所述至少两种符合通式Ⅰ-1的化合物的总量占所述液晶组合物的总重量不低于10%,且其中每一种符合通式Ⅰ-1的化合物的含量不高于8%;
其中所述通式I-1的化合物含有至少一种选自由如下化合物组成的组的化合物:
Figure FDA00028111413400000211
Figure FDA00028111413400000212
以及
Figure FDA0002811141340000031
并且
其中所述通式Ⅳ的化合物含有至少一种选自由如下化合物组成的组的化合物:
Figure FDA0002811141340000032
Figure FDA0002811141340000033
以及
Figure FDA0002811141340000034
2.根据权利要求1所述的液晶组合物,其特征在于,所述三种或更多种符合通式Ⅰ的化合物包含:
占所述液晶组合物总重量10-30%的至少两种通式Ⅰ-1的化合物
Figure FDA0002811141340000035
占所述液晶组合物总重量0-15%的至少一种通式Ⅰ-2的化合物:
Figure FDA0002811141340000036
其中,
R1和R1A相同或不同,各自独立地表示碳原子数为1-5的烷基或烷氧基,或碳原子数为2-5的烯基或烯氧基;
Y1、Y2、Y1A和Y2A相同或不同,各自独立地表示H、F,或未被卤代或被卤代的甲基或甲氧基;
Y3A表示H或F;
Figure FDA0002811141340000037
选自由
Figure FDA0002811141340000038
组成的组;且当
Figure FDA0002811141340000041
Figure FDA0002811141340000042
时,Y3A表示H;
X1和X1A相同或不同,各自独立地表示F、Cl,或未被卤代或被卤代的碳原子数为1-5的烷基或烷氧基。
3.根据权利要求1或2所述的液晶组合物,其特征在于,所述R1和所述R1A相同或不同,各自独立地表示碳原子数为1-5的烷基,Y1、Y2、Y1A、Y2A和Y3A相同或不同,各自独立地为H或F;X1和X1A相同或不同,各自独立地表示F、CF3或OCF3
4.根据权利要求2所述的液晶组合物,其特征在于,所述通式Ⅰ-1的化合物还含有选自由如下化合物组成的组的化合物:
Figure FDA0002811141340000043
Figure FDA0002811141340000044
以及
Figure FDA0002811141340000045
并且
所述通式Ⅰ-2的化合物选自由如下化合物组成的组:
Figure FDA0002811141340000046
Figure FDA0002811141340000051
Figure FDA0002811141340000061
Figure FDA0002811141340000062
以及
Figure FDA0002811141340000063
5.根据权利要求1所述的液晶组合物,其特征在于,所述通式Ⅱ的化合物选自由如下化合物组成的组:
Figure FDA0002811141340000064
Figure FDA0002811141340000065
以及
Figure FDA0002811141340000071
6.根据权利要求1所述的液晶组合物,其特征在于,所述通式Ⅲ-1的化合物选自由如下化合物组成的组:
Figure FDA0002811141340000072
Figure FDA0002811141340000073
以及
Figure FDA0002811141340000074
所述通式Ⅲ-2的化合物选自由如下化合物组成的组:
Figure FDA0002811141340000081
Figure FDA0002811141340000082
以及
Figure FDA0002811141340000083
并且
所述通式Ⅲ-3的化合物选自由如下化合物组成的组:
Figure FDA0002811141340000084
Figure FDA0002811141340000091
Figure FDA0002811141340000092
以及
Figure FDA0002811141340000093
7.根据权利要求1所述的液晶组合物,其特征在于,所述通式Ⅳ的化合物还含有选自由如下化合物组成的组的化合物:
Figure FDA0002811141340000094
Figure FDA0002811141340000101
Figure FDA0002811141340000102
以及
Figure FDA0002811141340000103
8.根据权利要求1所述的液晶组合物,其特征在于,所述液晶组合物还包含:
占所述液晶组合物总重量0-40%的一种或多种选自由式Ⅴ-1至式Ⅴ-8化合物组成的组中的化合物
Figure FDA0002811141340000104
Figure FDA0002811141340000105
以及
Figure FDA0002811141340000106
其中,
R8和R9相同或不同,各自独立地表示碳原子数为1-5的烷基或烷氧基,或碳原子数为2-5的烯基或烯氧基。
9.根据权利要求8所述的液晶组合物,其特征在于,所述通式Ⅰ的化合物占所述液晶组合物总重量的20-30%;所述通式Ⅱ的化合物占所述液晶组合物总重量的20-48%;所述通式Ⅳ的化合物占所述液晶组合物总重量的5-30%;以及所述通式Ⅴ-1至Ⅴ-8化合物占所述液晶组合物总重量的4-40%。
10.根据权利要求9所述的液晶组合物,其特征在于,所述通式Ⅰ的化合物占所述液晶组合物总重量的20-30%;所述通式Ⅱ的化合物占所述液晶组合物总重量的25-48%;所述通式Ⅲ-1、通式Ⅲ-2、Ⅲ-3及其组合组成的组的化合物占所述液晶组合物总重量的15-33%;所述通式Ⅳ的化合物占所述液晶组合物总重量的5-20%;以及所述通式Ⅴ-1至Ⅴ-8化合物占所述液晶组合物总重量的4-31%。
11.根据权利要求1所述的液晶组合物,其特征在于,所述液晶组合物还包含一种或多种添加剂。
12.一种液晶显示器件,包含权利要求1-11中的任一项所述的液晶组合物。
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CN104066815A (zh) * 2012-02-03 2014-09-24 捷恩智株式会社 液晶化合物、液晶组合物以及液晶显示组件
JP2014037523A (ja) * 2012-07-18 2014-02-27 Dic Corp ネマチック液晶組成物及びこれを用いた液晶表示素子
CN104039926A (zh) * 2012-10-05 2014-09-10 Dic株式会社 液晶组合物及使用其的液晶显示元件
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CN105308153A (zh) * 2013-07-03 2016-02-03 捷恩智株式会社 液晶组合物及液晶显示元件
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WO2016017570A1 (ja) * 2014-07-28 2016-02-04 Dic株式会社 液晶表示素子
WO2016047249A1 (ja) * 2014-09-22 2016-03-31 Jnc株式会社 液晶組成物および液晶表示素子

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