Abstract:
Provided is a novel liquid crystal display device without deterioration of display quality. The liquid crystal display device includes a pixel for displaying a still image with a frame frequency of 1 Hz or lower. The pixel includes a liquid crystal element which includes a liquid crystal layer and has a cell gap of d (μm). The liquid crystal layer includes a liquid crystal composition which includes a liquid crystal material. The helical pitch of the liquid crystal material is longer than or equal to 4d μm and shorter than or equal to 8d μm. With this structure, a change in voltage applied to a pixel can be kept within an acceptable range of a deviation in gray level for displaying the same image. Thus, flickers due to a low refresh rate can be reduced, which leads to an increase in display quality.
Abstract:
Provided is a novel liquid crystal composition that can be used for a variety of liquid crystal devices. The novel liquid crystal composition exhibits a blue phase and includes a binaphthyl compound represented by a general formula (G1) as a chiral agent. In the general formula (G1), Ar2 represents any of an aryl group having 6 to 12 carbon atoms and a cycloalkyl group having 3 to 12 carbon atoms; n is 0 to 3; and one of R and R1 represents a substituent represented by a general formula (G2) and the other represents hydrogen. In the general formula (G2), Ar1 represents any of an aryl group having 6 to 12 carbon atoms and a cycloalkyl group having 3 to 12 carbon atoms; and k is 1 to 3.
Abstract:
A dioxolane derivative represented by formula (G1) is provided. The explanation of the substituents is given in the specification. The use of the dioxolane derivative enables the production of a liquid crystal composition and a liquid crystal display device including the liquid crystal composition.
Abstract:
A novel material for a liquid crystal composition that can be used for various liquid crystal devices is provided. A novel cyanobiphenyl derivative represented by General Formula (G1) is provided. In General Formula (G1), R1 represents a single bond or a substituted or unsubstituted alkylene group having 1 to 6 carbon atoms. Note that in General Formula (G1), R1 may have a substituent. Examples of the substituent are fluorine (F), chlorine (Cl), bromine (Br), iodine (I), a cyano group (CN), a trifluoromethylsulfonyl group (SO2CF3), a trifluoromethyl group (CF3), a nitro group (NO2), an isothiocyanate group (NCS), and a pentafluorosulfanyl group (SF5).
Abstract:
A binaphthyl compound represented by General Formula (G1) is provided. In General Formula (G1), Ar2 represents any of an arylene group, a cycloalkylene group, and a cycloalkenylene group, and m is any of 0 to 3; R3 represents any of hydrogen, an alkyl group, and an alkoxy group; and one of R and R1 represents a substituent represented by General Formula (G2) and the other thereof represents hydrogen. In General Formula (G2), Ar1 represents any of an arylene group, a cycloalkylene group, and a cycloalkenylene group, and k is any of 1 to 3; and R2 represents any of hydrogen, an alkyl group, and an alkoxy group.
Abstract:
A dioxolane derivative represented by formula (G1) is provided. The explanation of the substituents is given in the specification. The use of the dioxolane derivative enables the production of a liquid crystal composition and a liquid crystal display device including the liquid crystal composition.
Abstract:
An organic compound represented by General Formula (G100) is provided. A novel liquid crystal composition containing the organic compound is provided.
Abstract:
Provided is a novel material included in a liquid crystal composition that can be used in various liquid crystal display devices. A trifluorophenyl derivative represented by General Formula (G1). In General Formula (G1), Ar1 represents an arylene group having 6 to 12 carbon atoms, a cycloalkylene group having 3 to 12 carbon atoms, or a cycloalkenylene group having 3 to 12 carbon atoms; m represents 1 or 2; and R1 represents hydrogen, an alkyl group having 2 to 11 carbon atoms, or an alkoxy group having 2 to 11 carbon atoms.
Abstract:
A novel material of a binaphthyl compound represented by General Formula (G1) is provided. Ar11 and Ar12 independently represent a substituted or unsubstituted arylene group having 6 to 12 carbon atoms, a substituted or unsubstituted cycloalkylene group having 3 to 12 carbon atoms, or a substituted or unsubstituted cycloalkenylene group having 3 to 12 carbon atoms, m represents 1 or 2, and n represents any one of 0 to 2. R12 represents a substituted or unsubstituted alkylene group having 1 to 12 carbon atoms, or a single bond. R13 represents hydrogen, a substituted or unsubstituted alkyl group having 1 to 12 carbon atoms, or a substituted or unsubstituted alkoxy group having 1 to 12 carbon atoms. One of R10 and R11 represents a substituent represented by General Formula (G2), and the other represents hydrogen.
Abstract translation:提供由通式(G1)表示的联萘化合物的新型材料。 Ar 11和Ar 12独立地表示取代或未取代的碳原子数6〜12的亚芳基,取代或未取代的碳原子数3〜12的亚环烷基或取代或未取代的碳原子数3〜12的亚环烯基,m表示1或2 ,n表示0〜2的任意一个.R 12表示取代或未取代的碳原子数1〜12的亚烷基或单键。 R 13表示氢,取代或未取代的碳原子数1〜12的烷基或取代或未取代的碳原子数1〜12的烷氧基。 R 10和R 11中的一个表示由通式(G2)表示的取代基,另一个表示氢。
Abstract:
To provide a novel material for a liquid crystal composition that can be used for various liquid crystal display devices. A novel isosorbide derivative represented by General Formula (G2) is provided. In General Formula (G2), Ar1, Ar2, Ar3, and Ar4 each independently represent a substituted or unsubstituted arylene group having 6 to 12 carbon atoms, a substituted or unsubstituted cycloalkylene group having 3 to 12 carbon atoms, or a substituted or unsubstituted cycloalkenylene group having 4 to 12 carbon atoms; l, k, m, and n each independently represent any of 0 to 3; R21 and R23 each independently represent oxygen, a single bond, or a substituted or unsubstituted alkylene group having 1 to 12 carbon atoms; and R22 and R24 each independently represent hydrogen, oxygen, a substituted or unsubstituted alkyl group having 1 to 12 carbon atoms, or a substituted or unsubstituted alkoxy group having 1 to 12 carbon atoms.
Abstract translation:提供可用于各种液晶显示装置的液晶组合物的新型材料。 提供由通式(G2)表示的新型异山梨醇衍生物。 在通式(G2)中,Ar 1,Ar 2,Ar 3和Ar 4各自独立地表示取代或未取代的碳原子数为6〜12的亚芳基,取代或未取代的碳原子数为3〜12的亚环烷基,或取代或未取代的环亚烯基 具有4至12个碳原子的基团; l,k,m和n各自独立地表示0〜3中的任一个。 R 21和R 23各自独立地表示氧,单键或取代或未取代的碳原子数1〜12的亚烷基。 R 22和R 24各自独立地表示氢,氧,取代或未取代的碳原子数1〜12的烷基或取代或未取代的碳原子数1〜12的烷氧基。