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US 11,851,599 B2Granted
Liquid crystal composition and liquid crystal display device thereof
AssigneeJiangsu Hecheng Display Technology Co., Ltd.
InventorsDi He, Wenquan Ding, Haibin Xu, Shuang Xu, Lifang Yao
Life of this patent
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Abstract
A liquid crystal composition and a liquid crystal display device including the liquid crystal composition include at least one compound of general formula I and at least one compound of general formula II. Compared with the prior art, the liquid crystal composition has a smaller voltage change rate at high and low temperatures and a shorter low temperature response time, while maintaining an appropriate optical anisotropy, an appropriate clearing point, an appropriate absolute value of dielectric anisotropy, such that the liquid crystal display device having the liquid crystal composition has a better display and a faster response speed.
Claims10
A liquid crystal composition, wherein the liquid crystal composition comprises:
- at least one compound of general formula I
- at least one compound of general formulas II-1, II-2, II-5, II-6, II-7, and II-11 selected from the group consisting of:
- at least one compound of general formula III-1
- in which,
- R1 represents —H;
- R2 represents —H, halogen, C1-12 linear alkyl or C3-12 branched alkyl,
- wherein one or more nonadjacent —CH2— in the C1-12 linear alkyl or C3-12 branched alkyl can each be independently replaced by —CH═CH—, —C≡C—, —O—, —CO—, —CO—O— or —O—CO—, and one or more —H in
- can each be independently substituted by —F or —Cl;
- R3 and R4 each independently represents C1-12 linear alkyl or C3-12 branched alkyl,
- wherein one or more nonadjacent —CH2— in the C1-12 linear alkyl or C3-12 branched alkyl can each be independently replaced by —CH═CH—, —C≡C—, —O—, —CO—, —CO—O— or —O—CO—;
- ring
- represents
- wherein one or more —CH2— in
- can be replaced by —O—, and one or more single bond in the rings can be replaced by double bond, wherein one or more —H on
- in the ring
- can each be independently substituted by —F, —Cl, —CN, —CH3 or —OCH3, and one or more —CH═ in the ring
- can be replaced by —N═;
- ring
- represents
- wherein one or more —CH2— in and
- can be replaced by —O—, and one or more single bond in the rings can be replaced by double bond, wherein one or more —H on
- in the ring
- can each be independently substituted by —F, —Cl, —CN, —CH3 or —OCH3, and one or more —CH═ in the ring
- can be replaced by —N═;
- X1 represents —O—, —S—, —CO—, —CF2—, —NH— or —NF—;
- Y1 and Y2 each independently represents —H, halogen, C1-3 halogenated or unhalogenated alkyl, or C1-3 halogenated or unhalogenated alkoxy;
- Z1 represents —O—, —S—, —CO—O—, —O—CO—, —OCH2—, —CH═CH—, —C≡C—, —CH2CH2—, —CF2CF2—, —(CH2)4—, —CF2O— or —OCF2—, and Z2 represents single bond, —O—, —S—, —CO—O—, —O—CO—, —CH2O—, —OCH2—, —CH═CH—, —C≡C—, —CH2CH2—, —CF2CF2—, —(CH2)4—, —CF2O— or —OCF2—;
- T1, T2, T4, T5, T6, and T8 each independently represents —H, —F, —Cl, —CN, —CH3 or —OCH3;
- R5 and R6 each independently represents C1-10 linear alkyl or C3-10 branched alkyl,
- C1-9 linear alkyl or C3-9 branched alkoxy, or C2-10 linear alkyl or C3-10 branched alkenyl;
- and
- n1 represents 1 or 2, n2 represents 0, 1 or 2, wherein when n1=2, ring
- can be same or different, and Z1 can be same or different;
- wherein when n2=2, ring
- can be same or different, and Z2 can be same or different.
32 more elements
A liquid crystal composition, wherein the liquid crystal composition comprises:
- at least one compound of general formula I
- at least one compound of general formulas II-1, II-2, II-5, II-6, II-7, and II-11 selected from the group consisting of:
- at least one compound of general formula III-1
- in which,
- R1 represents —H;
- R2 represents —H, halogen, C1-12 linear alkyl or C3-12 branched alkyl,
- wherein one or more nonadjacent —CH2— in the C1-12 linear alkyl or C3-12 branched alkyl can each be independently replaced by —CH═CH—, —C≡C—, —O—, —CO—, —CO—O— or —O—CO—, and one or more —H in
- can each be independently substituted by —F or —Cl;
- R3 and R4 each independently represents C1-12 linear alkyl or C3-12 branched alkyl,
- wherein one or more nonadjacent —CH2— in the C1-12 linear alkyl or C3-12 branched alkyl can each be independently replaced by —CH═CH—, —C≡C—, —O—, —CO—, —CO—O— or —O—CO—;
- ring
- represents
- wherein one or more —CH2— in
- can be replaced by —O—, and one or more single bond in the rings can be replaced by double bond, wherein one or more —H on
- in the ring
- can each be independently substituted by —F, —Cl, —CN, —CH3 or —OCH3, and one or more —CH═ in the ring
- can be replaced by —N═;
- ring
- represent
- wherein one or more —CH2— in
- can be replaced by —O—, and one or more single bond in the rings can be replaced by double bond, wherein one or more —H on
- in the ring
- can each be independently substituted by —F, —Cl, —CN, —CH3 or —OCH3, and one or more —CH═ in the ring
- can be replaced by —N═;
- X1 represents —O—, —S—, —CO—, —CF2—, —NH— or —NF—;
- Y1 and Y2 each independently represents —H, halogen, C1-3 halogenated or unhalogenated alkyl, or C1-3 halogenated or unhalogenated alkoxy;
- Z1 and Z2 each independently represents single bond, —O—, —S—, —CO—O—, —O—CO—, —CH2O—, —OCH2—, —CH═CH—, —C≡C—, —CH2CH2—, —CF2CF2—, —(CH2)4—, —CF2O— or —OCF2—;
- T1, T2, T4, T5, T6, and T8 each independently represents —H, —F, —Cl, —CN, —CH3 or —OCH3;
- R5 and R6 each independently represents C1-10 linear alkyl or C3-10 branched alkyl,
- C1-9 linear alkyl or C3-9 branched alkoxy, or C2-10 linear alkyl or C3-10 branched alkenyl;
- and
- n1 represents 1 or 2, n2 represents 1 or 2, wherein when n1=2, ring
- can be same or different, and Z1 can be same or different;
- wherein when n2=2, ring
- can be same or different, and Z2 can be same or different.
32 more elements
Dependencies are inferred from the claim text.