Abstract: According to one embodiment, a liquid crystal display device includes a first substrate including a first alignment film, a second substrate including a second alignment film opposed to the first alignment film, and a liquid crystal layer held in a cell gap between the first substrate and the second substrate. The liquid crystal layer is formed of a liquid crystal material having a viscosity of 20 mPa*s or more under a condition of 65° C. The cell gap is greater than or equal to 2.3 ?m and smaller than or equal to 3.3 ?m.

Abstract: According to one embodiment, a liquid crystal display device includes a first substrate including a first insulative substrate extending over a first area and a second area, a common electrode and a pixel electrode which are formed in the first area, and a pad of ground potential which is formed in the second area, a second substrate including a second insulative substrate, a liquid crystal layer held between the first substrate and the second substrate, a cover glass extending over the first area and the second area, a transparent, electrically conductive layer formed on an inner surface of the cover glass over the first area and the second area, and a connection member configured to electrically connect the electrically conductive layer and the pad in the second area.

Abstract: According to one embodiment, a liquid crystal display device includes a first substrate including a first alignment film, a second substrate including a second alignment film opposed to the first alignment film, and a liquid crystal layer held in a cell gap between the first substrate and the second substrate. The liquid crystal layer is formed of a liquid crystal material having a viscosity of 20 mPa*s or more under a condition of 65° C. The cell gap is greater than or equal to 2.3 ?m and smaller than or equal to 3.3 ?m.

Abstract: According to one embodiment, a liquid crystal display device includes a liquid crystal display panel in which a liquid crystal layer is held between a first glass substrate and a second glass substrate which are located opposite to each other, a first optical element including a first supporting layer provided on an outer surface side of the first glass substrate, a first polarizer layer stacked on the first supporting layer and a first adhesion layer adhering the first supporting layer, and a second optical element including a second supporting layer, a second polarizer layer, and a second adhesion layer, wherein the first supporting layer and the first adhesion layer are each formed of material which does not cause an oxidization-reduction action.

Abstract: According to one embodiment, a liquid crystal display device includes a first substrate including a first insulative substrate extending over a first area and a second area, a common electrode and a pixel electrode which are formed in the first area, and a pad of ground potential which is formed in the second area, a second substrate including a second insulative substrate, a liquid crystal layer held between the first substrate and the second substrate, a cover glass extending over the first area and the second area, a transparent, electrically conductive layer formed on an inner surface of the cover glass over the first area and the second area, and a connection member configured to electrically connect the electrically conductive layer and the pad in the second area.

Abstract: According to one embodiment, a liquid crystal display device includes a first insulative substrate, a second insulative substrate, a first polarizer disposed on an outer surface side of the first insulative substrate, a second polarizer disposed on an outer surface side of the second insulative substrate, and a first retardation plate and a second retardation plate, which are stacked between the second insulative substrate and the second polarizer. When a retardation in the thickness direction, which is defined by ((nx+ny)/2?nz)*d, is Rth, the first retardation plate has a negative first retardation Rth1, the second retardation plate has a positive second retardation Rth2, and a contribution degree of the second retardation Rth2, which is defined by |Rth2|*100/(|Rth1|+|Rth2|), is 40%±3%.

Abstract: A liquid crystal display device includes a plurality of pixels arranged in a matrix and constituted by first and second substrates and a liquid crystal layer held therebetween. The first substrate includes a common electrode arranged in common to the plurality of pixels, an insulating film arranged on the common electrode, a pixel electrode arranged facing the common electrode through the insulating film. Slits are formed in the pixel electrode. The liquid crystal layer is formed of a liquid crystal material having a voltage maintain rate larger than 90% in a period of 500 msec at temperature 60° C. and a rotational viscosity less than 90 mPa-s at temperature 25° C.

Abstract: According to one embodiment, a liquid crystal display device includes a first insulative substrate, a second insulative substrate, a first polarizer disposed on an outer surface side of the first insulative substrate, a second polarizer disposed on an outer surface side of the second insulative substrate, and a first retardation plate and a second retardation plate, which are stacked between the second insulative substrate and the second polarizer. When a retardation in the thickness direction, which is defined by ((nx+ny)/2?nz)*d, is Rth, the first retardation plate has a negative first retardation Rth1, the second retardation plate has a positive second retardation Rth2, and a contribution degree of the second retardation Rth2, which is defined by |Rth2|*100/(|Rth1+|Rth2|), is 40%±3%.

Abstract: A liquid crystal display device includes a liquid crystal display panel which is configured such that a liquid crystal layer including liquid crystal molecules, which are twist-aligned at a twist angle of 70°±10°, is held between a first substrate and a second substrate, and an optical element which is provided on an outer surface of the second substrate. The optical element includes a polarizer plate, a first retardation plate which imparts a phase difference of a ½ wavelength, and a second retardation plate which imparts a phase difference of a ¼ wavelength, and a retardation value ?n·d of the liquid crystal layer is set at 200 ±30 nm, where ?n is a refractive index anisotropy of the liquid crystal layer and d is a thickness of the liquid crystal layer.

Abstract: A liquid crystal display device includes a first optical element which is provided on one of outer surfaces of a liquid crystal display panel including homogeneously aligned liquid crystal molecules and includes a first polarizer plate, a first retardation plate in which nematic liquid crystal molecules are solidified in a state in which the nematic liquid crystal molecules are hybrid-aligned in a liquid crystal state along a normal direction, and a second retardation plate, and a second optical element which is composed of a second polarizer plate.

Abstract: A liquid crystal display device includes a first optical element which is provided on one of outer surfaces of a liquid crystal display panel including homogeneously aligned liquid crystal molecules and includes a first polarizer plate, a first retardation plate in which nematic liquid crystal molecules are solidified in a state in which the nematic liquid crystal molecules are hybrid-aligned in a liquid crystal state along a normal direction, and a second retardation plate, and a second optical element which is composed of a second polarizer plate.

Abstract: A semi-transmission type liquid crystal display device includes a liquid crystal display panel LPN in which a liquid crystal layer LQ is held between an array substrate AR and a counter-substrate CT that are disposed to face each other, a first polarization control element POL1 provided on an outer surface of the array substrate AR, which is opposed to a surface of the array substrate AR that holds the liquid crystal layer LQ, and a second polarization control element POL2 provided on an outer surface of the counter-substrate CT, which is opposed to a surface of the counter-substrate CT that holds the liquid crystal layer LQ. The first polarization control element POL1 and second polarization control element POL2 control a polarization state of light that passes therethrough, such that light in a polarization state of elliptically polarized light is to be incident on the liquid crystal layer LQ.

Abstract: A liquid crystal display device includes a first optical element and a second optical element. The first optical element is provided on one of outer surfaces of a liquid crystal display panel including homogeneously aligned liquid crystal molecules, and includes a first polarizer plate, a first retardation plate functioning as a ½ wavelength plate, and a second retardation plate in which nematic liquid crystal molecules are solidified in a state in which the nematic liquid crystal molecules are hybrid-aligned in a liquid crystal state in a normal direction. The second optical element is provided on the other outer surface of the liquid crystal display panel and includes a second polarizer plate, a third retardation plate functioning as a ½ wavelength plate, and a fourth retardation plate functioning as a ¼ wavelength plate. The fourth retardation plate has an Nz coefficient in a range of 1.5 to 2.0.

Abstract: A liquid crystal display device includes a liquid crystal display panel which is configured such that a liquid crystal layer including liquid crystal molecules, which are twist-aligned at a twist angle of 70°±10°, is held between a first substrate and a second substrate, and an optical element which is provided on an outer surface of the second substrate. The optical element includes a polarizer plate, a first retardation plate which imparts a phase difference of a ½ wavelength, and a second retardation plate which imparts a phase difference of a ¼ wavelength, and a retardation value ?n·d of the liquid crystal layer is set at 200 ±30 nm, where ?n is a refractive index anisotropy of the liquid crystal layer and d is a thickness of the liquid crystal layer.

Abstract: A semitransparent liquid crystal display element comprises a liquid crystal panel composed of a plurality of pixels each having a reflective portion and a transparent portion arranged therein, a first polarizer sheet located on the observer's side of the liquid crystal panel, and a second polarizer sheet located on the opposite side of the liquid crystal panel from the first polarizer sheet, the angle of twist of a liquid crystal molecule which forms each pixel of the liquid crystal panel ranging from 44 degrees to 46 degrees. An angle between an absorption axis of the first polarizer sheet and a major axis of a liquid crystal molecule adjacent thereto ranges from 80 degrees to 85 degrees, and an angle between an absorption axis of the second polarizer sheet and a liquid crystal molecule adjacent thereto ranges from 50 degrees to 55 degrees.

Abstract: A first polarization control element POL1 provided on an outer surface of an array substrate AR and a second polarization control element POL2 provided on an outer surface of a counter-substrate CT control a polarization state of light that passes therethrough, such that light in a polarization state of elliptically polarized light is to be incident on the liquid crystal layer LQ. An ellipticity of elliptically polarized light, which is incident on the liquid crystal display panel LPN in a principal viewing-angle direction is greater than an ellipticity of elliptically polarized light, which is incident in a anti-principal viewing-angle direction.

Abstract: A liquid crystal display device including a plurality of pixels arranged in a matrix includes a liquid crystal display panel in which a liquid crystal layer is held between an array substrate and a counter-substrate that are disposed to face each other, a first polarization control element provided on an outer surface of the array substrate, which is opposed to a surface of the array substrate that holds the liquid crystal layer, and a second polarization control element provided on an outer surface of the counter-substrate, which is opposed to a surface of the counter-substrate that holds the liquid crystal layer. When a vertical direction of a screen is set to be a reference azimuth, the liquid crystal layer includes liquid crystal molecules that are homogeneously aligned in an azimuth different from the reference azimuth.

Abstract: A liquid crystal display device includes a liquid crystal panel, a polarizer plate that is disposed on an observer side, relative to the liquid crystal panel, a polarizer plate that is disposed to be opposed to the polarizer plate, with the liquid crystal panel interposed, and an optical film that is disposed between the polarizer plate and the liquid crystal panel and between the polarizer plate and the liquid crystal panel, thereby to increase a viewing angle of an image that is displayed by the liquid crystal panel, wherein a twist angle of the liquid crystal molecules sealed in the liquid crystal panel is greater than 90° and not greater than 96°, a retardation ?nd of the liquid crystal panel is between 400 nanometers (nm) and 430 nm, and a retardation ?nd of the optical film is between 110 nm and 120 nm.

Abstract: A semi-transmission type liquid crystal display device includes a liquid crystal display panel LPN in which a liquid crystal layer LQ is held between an array substrate AR and a counter-substrate CT that are disposed to face each other, a first polarization control element POL1 provided on an outer surface of the array substrate AR, which is opposed to a surface of the array substrate AR that holds the liquid crystal layer LQ, and a second polarization control element POL2 provided on an outer surface of the counter-substrate CT, which is opposed to a surface of the counter-substrate CT that holds the liquid crystal layer LQ. The first polarization control element POL1 and second polarization control element POL2 control a polarization state of light that passes therethrough, such that light in a polarization state of elliptically polarized light is to be incident on the liquid crystal layer LQ.

Abstract: A semitransparent liquid crystal display element comprises a liquid crystal panel composed of a plurality of pixels each having a reflective portion and a transparent portion arranged therein, a first polarizer sheet located on the observer's side of the liquid crystal panel, and a second polarizer sheet located on the opposite side of the liquid crystal panel from the first polarizer sheet, the angle of twist of a liquid crystal molecule which forms each pixel of the liquid crystal panel ranging from 44 degrees to 46 degrees. An angle between an absorption axis of the first polarizer sheet and a major axis of a liquid crystal molecule adjacent thereto ranges from 80 degrees to 85 degrees, and an angle between an absorption axis of the second polarizer sheet and a liquid crystal molecule adjacent thereto ranges from 50 degrees to 55 degrees.