JNC Petrochemical Corporation

Ichihara, Japan

JNC Petrochemical Corporation

Ichihara, Japan
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Patent
JNC Corporation and JNC Petrochemical Corporation | Date: 2017-07-05

An object of the invention is to provide a display means with which no unevenness is caused on a surface of a separator material in a microporous film roll for a battery separator. Microporous film roll (1) for the battery separator according to the invention has indicator part (18) different in optical characteristics therefrom in microporous film (3) for the battery separator. Moreover, a method for producing microporous film roll (1) for the battery separator according to the invention has features of providing indicator part (18) different in light shieldability or light reflectivity therefrom in microporous film (3) for the battery separator.


Provided is a liquid crystal compound satisfying at least one of physical properties such as high stability to heat, light and so forth, a high clearing point, a low minimum temperature of a liquid crystal phase, small viscosity, suitable optical anisotropy, large negative dielectric anisotropy, a suitable elastic constant and excellent compatibility with other liquid crystal compounds. The compound is represented by formula (1).^(1) and R^(2) are alkyl having 1 to 15 carbons, and ring A^(1), ring A^(2) and ring A^(3) are 1,4-cyclohexylene or 1,4-cyclohexenylene, Z^(1), Z^(2) and Z^(3) are a single bond or - (CH_(2))_(2)-, a, b and c are 0 or 1, and a sum of a, b, and c is 0, 1 or 2.


Patent
JNC Corporation and JNC Petrochemical Corporation | Date: 2017-01-11

Subject The subject is to provide a liquid crystal display device having characteristics such as a short response time, a large voltage holding ratio, a low threshold voltage, a large contrast ratio, a long service life and a small flicker rate. Means for solution The means concerns a liquid crystal display device including a first substrate, a second substrate and a liquid crystal composition having a nematic phase, which is placed between these substrates, wherein the liquid crystal composition includes at least one compound selected from the group of compounds represented by formula (1) as a first component:^(1) and R^(2) are alkyl or the like; ring A and ring C are 1,4-phenylene or the like; ring B is 2,3-difluoro-1,4-phenylene or the like; Z^(1) and Z^(2) are a single bond or the like; and m is 1, 2 or 3, n is 0 or 1, and the sum of m and n is 3 or less.


Patent
JNC Corporation and JNC Petrochemical Corporation | Date: 2017-02-01

The subject is to provide liquid crystal display device that has characteristics such as a short response time, a large voltage holding ratio, a low threshold voltage, a large contrast ratio, a long service life and a small flicker rate. The invention relates to a liquid crystal display device including an electrode group formed on one or both of a pair of substrates that are opposed to each other, and a plurality of active devices connected to the electrode group, and a liquid crystal alignment film formed on the opposing surfaces of the pair of substrates, and a liquid crystal composition sandwiched in between the pair of substrates.


Patent
JNC Corporation and JNC Petrochemical Corporation | Date: 2017-02-08

Subject The subject is to provide a liquid crystal display device having characteristics such as a short response time, a large voltage holding ratio, a low threshold voltage, a large contrast ratio, a long service life and a small flicker rate. Means for solution The means concerns a liquid crystal display device including a first substrate, a second substrate and a liquid crystal composition having positive dielectric anisotropy, which is placed between these substrates, wherein the liquid crystal composition has a nematic phase and includes at least one compound selected from the group of compounds represented by formula (1) as a first component:^(1) is alkyl or the like; ring A is 1,4-phenylene or the like; Z^(1) is a single bond or the like; X^(1) and X^(2) is hydrogen or fluorine; Y^(1) is fluorine or the like; and m is 0, 1, 2, 3 or 4.


To provide a liquid crystal compound satisfying at least one of physical properties such as a high stability to heat, light or the like, a high clearing point, a low minimum temperature of a liquid crystal phase, a small viscosity, a suitable optical anisotropy, a large dielectric anisotropy, a suitable elastic constant and an excellent compatibility with other liquid crystal compounds, a liquid crystal composition containing the compound and a liquid crystal display device including the composition. A compound represented by formula (1):for example, R^(1) is alkyl having 1 to 15 carbons;ring A^(1) and ring A^(2) are 1,4-cyclohexylene, 1,4-cyclohexenylene, 1,4-phenylene, 1,4-phenylene in which at least one piece of hydrogen is replaced by halogen, tetrahydropyran-2,5-diyl or 1,3-dioxane-2,5-diyl; Z^(1) and Z^(2) are a single bond or -CF_(2)O-; L^(1), L^(2) and L^(3) are halogen or hydrogen; and a is 0 to 3.


Patent
JNC Corporation and JNC Petrochemical Corporation | Date: 2017-02-22

Subject The subject is to provide a liquid crystal display device that has characteristics such as a short response time, a large voltage holding ratio, a low threshold voltage, a large contrast ratio, a long service life and a small flicker rate. Means for solution The invention relates to a liquid crystal display device including an electrode group formed on one or both of a pair of substrates that are opposed to each other, and a plurality of active devices connected to the electrode group, and a liquid crystal alignment film formed on the opposing surfaces of the pair of substrates, and a liquid crystal composition sandwiched in between the pair of substrates, and the liquid crystal composition includes at least one compound selected from the group of compounds represented by formula (1) as a first component, and relates to the liquid crystal composition included in the device and the liquid crystal alignment film included in the device:^(1) is alkyl having 1 to 12 carbons or the like; ring A is 1,4-cyclohexylene, 1,4-phenylene or the like; Z^(1) is a single bond or the like; X^(1) and X^(2) are hydrogen or fluorine; Y^(1) is fluorine or the like; and a is 1, 2, 3 or 4.


Patent
JNC Corporation and JNC Petrochemical Corporation | Date: 2017-06-14

The subject is to provide liquid crystal display device that has characteristics such as a short response time, a large voltage holding ratio, a low threshold voltage, a large contrast ratio, a long service life and a small flicker rate. The invention relates to a liquid crystal display device having an electrode group formed on one or both of a pair of substrates that are opposed to each other, and a plurality of active devices connected to the electrode group, and a liquid crystal alignment film formed on the opposing surfaces of the pair of substrates, and a liquid crystal composition sandwiched in between the pair of substrates, wherein the liquid crystal alignment film includes a polymer derived from a polyamic acid having a photodegradable group, and the liquid crystal composition includes at least one compound represented by formula (1) as a first component:^(1) is alkyl having 1 to 12 carbons or the like; ring A is 1,4-cyclohexylene, 1,4-phenylene or the like; Z^(1) is a single bond or the like; X^(1) and X^(2) are hydrogen or fluorine; Y^(1) is fluorine or the like; and a is 1, 2, 3 or 4.


Patent
JNC Corporation and JNC Petrochemical Corporation | Date: 2017-05-03

The subject is to provide liquid crystal display device that has characteristics such as a short response time, a large voltage holding ratio, a low threshold voltage, a large contrast ratio, a long service life and a small flicker rate. The invention relates to a liquid crystal display device having an electrode group formed on one or both of a pair of substrates that are opposed to each other, and a plurality of active devices connected to the electrode group, and a liquid crystal alignment film formed on the opposing surfaces of the pair of substrates, and a liquid crystal composition sandwiched in between the pair of substrates, wherein the liquid crystal alignment film includes a polymer having a photodegradable group, and the liquid crystal composition includes at least one compound represented by formula (1) as a first component:^(1) and R^(2) are independently alkyl having 1 to 12 carbons or the like; ring A and ring C are independently 1,4-cyclohexylene or the like; ring B is 2,3-difluoro-1,4-phenylene or the like; Z^(1) and Z^(2) are independently a single bond or the like; a is 0, 1, 2 or 3; b is 0 or 1; and the sum of a and b is 3 or less.


To provide a liquid crystal compound satisfying at least one of physical properties such as high chemical stability, a high clearing point, a low minimum temperature of a liquid crystal phase, low viscosity, large optical anisotropy, large dielectric anisotropy, a suitable elastic constant and excellent compatibility with other liquid crystal compounds, a liquid crystal composition containing the compound and a liquid crystal display device including the composition. A compound is represented by formula (1). In formula (1), for example, R^(1) is alkyl having 1 to 15 carbons; ring A^(1), ring A^(2) and ring A^(3) are independently 1,4-phenylene, 2-halogeno-1,4-phenylene or 2,6-dihalogeno-1,4-phenylene; Z^(1) and Z^(2) are independently a single bond or -CC-, but at least one is -CC-; L^(1) is halogen, -OCF_(3) or -CF_(3); L^(2) and L^(3) are independently hydrogen or halogen, but at least one is halogen; and m and n are independently 0, 1 or 2, and a sum of m and n is 1 or 2.

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