Abstract: The subject is to shown 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.

Abstract: A liquid crystal composition has the nematic phase and contains a specific compound having large positive dielectric anisotropy as a first component, a specific compound having small viscosity as a second component, and may contain a specific compound having high maximum temperature or small viscosity as a third component, a specific compound having large positive dielectric anisotropy as a fourth component or a specific compound having negative dielectric anisotropy as a fifth component, and a liquid crystal display device includes the composition.

Abstract: A liquid crystal composition has a negative dielectric anisotropy and contains a specific compound having large negative dielectric anisotropy as a first component, and a specific compound having small viscosity as a second component. The composition may contain a specific compound having high maximum temperature or small viscosity as a third component, a specific compound having negative dielectric anisotropy as a fourth component, or a specific compound having a polymerizable group as an additive component.

Abstract: Provided are a liquid crystal composition in which vertical alignment of liquid crystal molecules can be achieved by action of a polymer, and a liquid crystal display device including the composition. The composition is a nematic liquid crystal composition that has negative dielectric anisotropy and contains a specific liquid crystal compound having large negative dielectric anisotropy as a first component and a polar compound having a polymerizable group as a first additive, and may contain a specific liquid crystal compound having high maximum temperature or small viscosity as a second component, a specific liquid crystal compound having large negative dielectric anisotropy as a third component, and a polymerizable compound as a second additive, and the liquid crystal display device includes the composition.

Abstract: To show a liquid crystal composition satisfying at least one of characteristics such as a high maximum temperature of a nematic phase, a low minimum temperature of the nematic phase, small viscosity, suitable optical anisotropy, large dielectric anisotropy, large specific resistance, high stability to ultraviolet light and heat; a liquid crystal composition having a suitable balance regarding at least two of the characteristics; and an AM device having a short response time, a large voltage holding ratio, a large contrast ratio, a long service life and so forth. The liquid crystal composition has the nematic phase and contains a specific compound having large dielectric anisotropy as a first component, and may contain a specific compound having a high maximum temperature or small viscosity as a second component, and a specific compound having large dielectric anisotropy as a third component, and a liquid crystal display device includes the composition.

Abstract: Shown are a liquid crystal composition having capability of achieving vertical alignment of liquid crystal molecules by action of a polymer, and a liquid crystal display device including the composition. A nematic liquid crystal composition has negative dielectric anisotropy and contains at least one polar compound selected from the group of compounds represented by formula (1) as a first additive, and the liquid crystal display device includes the composition. In formula (1), R1 is hydrogen, halogen, alkyl having 1 to 12 carbons or the like; R2 is a group represented by —OH, —OR0, —NH2, —NHR0 or —N(R0)2, in which R0 is alkyl having 1 to 5 carbons; ring A and ring B are independently 1,4-cyclohexylene, 1,4-phenylene or the like; Z1 is a single bond or the like; Sp1 and Sp2 are independently a single bond, alkylene having 1 to 7 carbons or the like; and a is 0 to 4.

Abstract: A lever-type connector includes a housing configured to be inserted and removed from a mating housing of a mating connector and a lever. The lever is pivotally operable between a temporary locking position and a fitting completion position of the lever. The lever includes a pair of side plates and an operating portion. A lock portion is provided on the housing. Lever disengagement prevention portions are provided on both sides of the housing so as to cover at least respective parts of the side plates of the lever positioned at the fitting completion position from outside.

Abstract: A lever-type connector includes a housing configured to be inserted into a mating housing of a mating connector, and a lever that is pivotally operable between a temporary locking position and a fitting completion position. The lever includes a pair of side plates and an operating portion. The housing has a lever-protection wall, protruding outward beyond a pivotal outer peripheral end of the lever disposed at the temporary locking position, the lever-protection wall being provided at an end portion of the housing in a direction opposite to a rotational direction in which the lever rotates from the temporary locking position toward the fitting completion position. The lever disposed at the temporary locking position is arranged so that the operating portion of the lever overlaps the lever-protection wall.

Abstract: The means concerns a liquid crystal composition that has a nematic phase and negative dielectric anisotropy and includes a quencher as a first additive and a specific compound having a large negative dielectric anisotropy as a first component, and the composition may include a specific compound having a high maximum temperature or a small viscosity as a second component and a specific polymerizable compound.

Abstract: An object of the present invention is to provide a pump device that is capable of improving a discharge performance. A first orifice 301 that is provided on a discharge oil passage (a pipe 12) of a pump 2 and a second orifice 302 that, when a flow amount Q becomes greater than a predetermined flow amount Q1, allows pass of brake fluid are provided.

Abstract: A seal belt includes inner and outer belt sections. The inner belt section revolves according to the movable member movement. The outer belt section includes, between the inner belt section and an opening, a first portion in which a first end is retained at a movable member inside section portion, the portion being closer to the opening lower end, and the remaining portion extends along the opening and is retained at a third space position, and a second portion in which a first end is retained at an inside section portion, the portion being closer to the lower end, and the remaining portion extends to a fourth space position along the opening and is retained at the fourth space position. The first portion and second portions lengths are changed in a complementary manner according to the movable member movement. The drive mechanism is surrounded by the inner belt section.

Abstract: Provided is a pump device capable of suppressing an increase in size of a housing. The pump device includes: a housing including therein an oil passage and a pump; a motor configured to drive the pump; a motor mounting surface which is formed on one side surface of the housing, and to which the motor is mounted; a first port which is formed on the motor mounting surface, and to which a pipe connected to a master cylinder is mounted; a first surface formed so as to continue to the motor mounting surface, and including a second port to which a pipe connected to a wheel cylinder is mounted; a second surface formed so as to continue to the motor mounting surface and the first surface; and a third port which is formed on the second surface, and to which a pipe connecting an external device and the oil passage to each other is fixed.

Abstract: Shown is a liquid crystal display device having characteristics such as a short response time, a large voltage holding ratio, low threshold voltage, a large contrast ratio and a long service life. A polymer sustained alignment mode liquid crystal display device includes an electrode group formed on one or both of a pair of substrates arranged with facing each other, a plurality of active devices connected to the electrode group, liquid crystal alignment films formed on surfaces facing each other of the pair of substrates, respectively, and a liquid crystal composition interposed between the pair of substrates, in which the liquid crystal alignment film contains at least one polymer selected from polyorganosiloxane, polyamic acid, polyamic acid ester and polyimide, and the liquid crystal composition contains a specific compound having negative dielectric anisotropy as a first component.

Abstract: Shown are a liquid crystal composition satisfying at least one of characteristics such as high maximum temperature, low minimum temperature, low viscosity, suitable optical anisotropy and large negative dielectric anisotropy, or having a suitable balance regarding at least two of the characteristics, and an AM device including the composition. The liquid crystal composition contains a specific compound having large negative dielectric anisotropy as a first component, and a specific compound having low viscosity as a second component, and may contain a specific compound having negative dielectric anisotropy as a third component, a specific compound having high maximum temperature or low viscosity as a fourth component, or a specific compound having a polymerizable group as an additive.

Abstract: Provided is a liquid crystal composition satisfying at least one of characteristics such as a high maximum temperature, a low minimum temperature, small viscosity, large optical anisotropy and large dielectric anisotropy, or has a suitable balance regarding at least two of the characteristics, and an AM device including the composition. The liquid crystal composition may contain a specific compound having large negative dielectric anisotropy as a first component, a specific compound having a high maximum temperature or small viscosity as a second component, a specific compound having negative dielectric anisotropy as a third component, or a specific compound having a polymerizable group as an additive component.

Abstract: Provided is a liquid crystal composition satisfying at least one of characteristics such as a high maximum temperature, a low minimum temperature, small viscosity, suitable optical anisotropy, large negative dielectric anisotropy, large specific resistance, high stability to ultraviolet light and high stability to heat, or has a suitable balance regarding at least two of the characteristics; and an AM device including the composition and having a short response time, a large voltage holding ratio, a low threshold voltage, a large contrast ratio or a long service life. The composition contains a specific compound having at least one polymerizable group, and a liquid crystal display device includes the composition. The composition may contain a specific compound having large negative dielectric anisotropy as a first component, and a specific compound having a high maximum temperature or small viscosity as a second component.

Abstract: Provided is a liquid crystal composition having at least one of, or a suitable balance regarding at least two of, characteristics such as a high maximum temperature, a low minimum temperature, small viscosity, suitable optical anisotropy and large dielectric anisotropy, and an AM device including the composition. The liquid crystal composition contains a specific compound having positive dielectric anisotropy as a first component, a specific compound having small viscosity as a second component, and may contain a specific compound having positive dielectric anisotropy as a third component, a specific compound having a high maximum temperature or small viscosity as a fourth component or a specific compound having negative dielectric anisotropy as a fifth component.

Abstract: The subject is to show 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 disclosure 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.

Abstract: Provided are a liquid crystal composition that contains a polar compound having a polymerizable group, in which vertical alignment of liquid crystal molecules can be achieved by action of the compound (or polymer), and a liquid crystal display device including the composition. The composition satisfies at least one of characteristics such as high maximum temperature, low minimum temperature, small viscosity, suitable optical anisotropy, large negative dielectric anisotropy, large specific resistance, high stability to ultraviolet light and heat.

Abstract: The means concerns a liquid crystal composition that has negative dielectric anisotropy and that comprises a specific compound having a high stability to ultraviolet light as a first component, wherein the composition may comprise a specific compound having a high maximum temperature or a small viscosity as a second component, and a specific compound having a large negative dielectric anisotropy as a third component, and a specific compound having a polymerizable group as an additive component.