Liquid crystal composition and liquid crystal display element including the same

Patent metadata

Field	Value
Publication number	US-2016017227-A1
Application number	US-201314772564-A
Country	US
Kind code	A1
Filing date	Mar 26, 2013
Priority date	Mar 26, 2013
Publication date	Jan 21, 2016
Grant date	—

Abstract

An object of the present invention is to provide a liquid crystal composition suitable for producing liquid crystal display elements which reduces the risk of the formation of droplet traces during production and allows a liquid crystal material to be ejected at a constant rate during an ODF process without deteriorating the properties of the liquid crystal display element, such as dielectric anisotropy, viscosity, nematic-phase upper-limit temperature, nematic-phase stability at a low temperature, and γ 1 , and the image sticking resistance of the display element, and a liquid crystal display element including the liquid crystal composition. Provided are a liquid crystal composition having a negative dielectric anisotropy, the liquid crystal composition including one or more compounds represented by General Formula (I), one or more compounds represented by General Formula (II), and the compound represented by Formula (IIIb-1) and a liquid crystal display element including the liquid crystal composition.

First claim

1 - 9 . (canceled)

10 . A liquid crystal composition having a negative dielectric anisotropy the liquid crystal composition comprising:
2% to 25% by mass of one or more compounds selected from compounds represented by General Formula (I):

(wherein R 11 represents an alkyl group having 1 to 3 carbon atoms, and R 22 represents an alkyl group having 1 to 3 carbon atoms or a hydrogen atom);
3% to 25% by mass of one or more compounds selected from compounds represented by General Formula (II):

(wherein R 1 represents an alkyl group having 1 to 8 carbon atoms and R 2 represents an alkoxy group having 1 to 8 carbon atoms); and
5% to 25% by mass of a compound represented by Formula (IIIb-1):

wherein the liquid crystal composition does not include a compound including a cyclohexenylene ring.

11 . A liquid crystal composition having a negative dielectric anisotropy, the liquid crystal composition comprising:
one or more compounds selected from compounds represented by General Formula (I):

(wherein R 11 represents an alkyl group having 1 to 3 carbon atoms, and R 22 represents an alkyl group having 1 to 3 carbon atoms or a hydrogen atom);
one or more compounds selected from compounds represented by General Formula (II):

(wherein R 1 represents an alkyl group having 1 to 8 carbon atoms and R 2 represents an alkoxy group having 1 to 8 carbon atoms); and
a compound represented by Formula (IIIb-1):

wherein the liquid crystal composition has a dielectric anisotropy Δ∈ of 0.08 to 0.13 and a refractive index anisotropy Δn of 0.08 to 0.13 at 25° C., and
wherein the liquid crystal composition does not include a compound including a cyclohexenylene ring.

12 . The liquid crystal composition according to claim 10 , further comprising one or more compounds selected from compounds represented by General Formula (III):

(wherein R 3 and R 4 each independently represent an alkyl group having 1 to 8 carbon atoms, an alkenyl group having 2 to 8 carbon atoms, an alkoxy group having 1 to 8 carbon atoms, or an alkenyloxy group having 2 to 8 carbon atoms, and n is 0 or 1, while a compound with R 3 being an alkyl group having 3 carbon atoms, R 4 being an alkoxy group having 2 carbon atoms, and n being 1 is not included herein).

13 . The liquid crystal composition according to claim 10 , further comprising one or more compounds selected from compounds represented by General Formula (IV):

(wherein R 5 and R 6 each independently represent an alkyl group having 1 to 8 carbon atoms, an alkenyl group having 2 to 8 carbon atoms, an alkoxy group having 1 to 8 carbon atoms, or an alkenyloxy group having 2 to 8 carbon atoms).

14 . The liquid crystal composition according to claim 10 , wherein the one or more compounds selected from compounds represented by General Formula (I) are selected from compounds represented by Formulae (I-1), (I-2), and (I-3):

15 . The liquid crystal composition according to claim 10 , wherein the one or more compounds selected from compounds represented by General Formula (II) include a compound represented by Formula (II-1):

16 . The liquid crystal composition according to claim 10 , further comprising a reactive monomer.

17 . A liquid crystal display element comprising the liquid crystal composition according claim 10 .

18 . A liquid crystal display element comprising the liquid crystal composition according to claim 16 .

19 . A liquid crystal display comprising the liquid crystal display element according to claim 17 .

Assignees

• Dainippon Ink & Chemicals

Inventors

• Kurisawa Kazuki
• Ogawa Shinji
• Iwashita Yoshinori

Classifications

• C09K2019/3004

  Cy-Cy · CPC title

• C09K19/542

  Macromolecular compounds · CPC title

• C09K19/3003 Primary

  Compounds containing at least two rings in which the different rings are directly linked (covalent bond) · CPC title

• C09K19/44 Primary

  containing compounds with benzene rings directly linked · CPC title

• C09K2019/3009

  Cy-Ph · CPC title