摘要:
Provided is a liquid crystal medium for an electro-optical liquid crystal display of an IPS mode which does not cause burning and which is suitable for achieving a relatively low threshold voltage and a short response time. The liquid crystal medium for an IPS mode display comprising 5 to 37.5% by weight of the first component (compound of Formula I) and 5 to 62.5% by weight of the second component (compound of Formula II) or the liquid crystal medium comprising 100% by weight of the first component, 5 to 62.5% by weight of the second component and 5 to 37.5% by weight of third component (compound of Formula III): wherein R1 to R3 represent a C1 to C10 alkyl group, an alkoxy group or an oxalkyl group (containing 1 to 4 oxygen atoms), or a C2 to C10 alkenyl group; X represents transcyclohexylene or phenylene; A represents —CO—O— or a single bond; and Y1 represents a hydrogen atom or a fluorine atom.
摘要翻译:本发明提供一种IPS模式的电光液晶显示器的液晶介质,其不引起燃烧,适合于实现相对低的阈值电压和较短的响应时间。用于IPS模式显示器的液晶介质包括 5至37.5重量%的第一组分(式I化合物)和5至62.5重量%的第二组分(式II化合物)或包含100重量%的第一组分的液晶介质5至 62.5重量%的第二组分和5-37.5重量%的第三组分(式III化合物):其中R1至R3表示C1至C10烷基,烷氧基或氧代烷基(含有1至4个氧 原子)或C2〜C10烯基; X表示反式环亚己基或亚苯基; A表示-CO-O-或单键; Y 1表示氢原子或氟原子。
摘要:
A liquid crystal material for a STN display device having a low viscosity, steep electro-optical response characteristics, and a small temperature dependence of a threshold voltage is provided by a LC composition comprising: at least one first optically active compound having a negative temperature dependence of cholesteric helical pitch induced when added singly to a nematic liquid crystal and at least one second optically active compound having the same helical sense to the first optically active compound and a positive temperature dependence of a cholesteric helical pitch induced when added singly to a nematic liquid crystal, characterized in that the composition has a helical pitch at 25.degree. C. of 6-15 .mu.m, a negative temperature dependence of a helical pitch and a rate of change of a helical pitch of -0.05 to 0 .mu.m/.degree. C. between 10.degree. and 50.degree. C.
摘要:
A guest-host liquid crystal is provided by adding a quinophthalone group pigment or an anthraquinone group pigment as a non-azoic group dichroic pigment, to a host liquid crystal composition composed mainly of a halogenated benzene derivative, and having a high voltage-holding ratio of .DELTA..di-elect cons. of 4.5 to 7.5. By combining a host liquid crystal composition composed mainly of a halogenated benzene derivative and having a high voltage-holding ratio of .DELTA..di-elect cons. of 4.5 to 7.5, with a dichroic pigment having a specified, molecular structure, there is exhibited an effectiveness that it is possible to obtain a guest-host liquid crystal active matrix display element of 3.3V drive having stability under high temperature.
摘要:
A liquid crystal composition comprising at least one compound expressed by formula (1) as the first component, at least one compound expressed by formula (2) as the second component, and at least one compound expressed by either formula (3-1) or (3-2) as the third component. wherein R1, R3, R4, R5 and R6 each independently represent alkyl having 1 to 10 carbon; R2 represents alkyl or alkoxy having 1 to 10 carbon, or —COO—R6; Z1 represents a single bond or —C2H4—.
摘要翻译:一种液晶组合物,其包含至少一种由式(1)表示的化合物作为第一组分,至少一种由式(2)表示的化合物作为第二组分,和至少一种由式(3-1)或 (3-2)作为第三成分。其中R1,R3,R4,R5和R6各自独立地表示具有1-10个碳原子的烷基; R 2表示具有1至10个碳的烷基或烷氧基或-COO-R 6; Z 1表示单键或-C 2 H 4 - 。
摘要:
A liquid crystal composition having a nematic phase that includes three components, wherein the first component is at least one compound selected from the group of compounds represented by formula (1), the second component is at least one compound selected from the group of compounds represented by formulas (2-1) to (2-3), and the third component is at least one compound selected from the group of compounds represented by formula (3): wherein R1, R2 and R4 are each independently alkyl having 1 to 12 carbons or alkenyl having 2 to 12 carbons; R3 is fluorine, alkyl having 1 to 12 carbons or alkenyl having 2 to 12 carbons; R5 is fluorine, chlorine, alkyl having 1 to 12 carbons or alkenyl having 2 to 12 carbons; R6 is alkenyl having 2 to 12 carbons; Y1 is fluorine, chlorine or trifluoromethoxy; X1, X2, X3 and X4 are each independently hydrogen or fluorine; and one of X5 and X6 is fluorine, and the other is hydrogen.
摘要:
A liquid crystal composition having a nematic phase that includes three components, wherein the first component is at least one compound selected from the group of compounds represented by formula (1), the second component is at least one compound selected from the group of compounds represented by formulas (2-1) to (2-3), and the third component is at least one compound selected from the group of compounds represented by formula (3): wherein R1, R2 and R4 are each independently alkyl having 1 to 12 carbons or alkenyl having 2 to 12 carbons; R3 is fluorine, alkyl having 1 to 12 carbons or alkenyl having 2 to 12 carbons; R5 is fluorine, chlorine, alkyl having 1 to 12 carbons or alkenyl having 2 to 12 carbons; R6 is alkenyl having 2 to 12 carbons; Y1 is fluorine, chlorine or trifluoromethoxy; X1, X2, X3 and X4 are each independently hydrogen or fluorine; and one of X5 and X6 is fluorine, and the other is hydrogen.
摘要翻译:一种液晶组合物,其具有向列相,其包含三种成分,其中所述第一成分为选自式(1)所示的化合物的族群中的至少一种化合物,所述第二成分为选自所述化合物组中的至少一种化合物 由式(2-1)〜(2-3)表示的化合物,第三成分为选自式(3)表示的化合物中的至少一种化合物:其中R 1,R 2, > 2和R 4各自独立地为具有1至12个碳的烷基或具有2至12个碳的烯基; R 3是氟,具有1至12个碳的烷基或具有2至12个碳的烯基; R 5是氟,氯,具有1至12个碳的烷基或具有2至12个碳的烯基; R 6是具有2至12个碳的烯基; Y 1是氟,氯或三氟甲氧基; X 1,X 2,X 3和X 4各自独立地为氢或氟; X 5和X 6之一是氟,另一个是氢。