Abstract: A light control sheet including a light control layer sandwiched between first and second orientation layers and including a polymer network in which domains are dispersed and filled with a liquid crystal composition including a liquid crystal molecule and a dichroic dye, a pair of transparent electrodes sandwiching the orientation layers, and a polarizing layer positioned on an opposite side of the first orientation layer to the light control layer. The light control layer has a transmittance that increases upon application of a driving voltage to the pair of transparent electrodes. When the driving voltage is not applied between the transparent electrodes, the orientation layers orient the liquid crystal molecule and the dichroic dye horizontally to the orientation layers and orient an orient absorption ax of the dichroic dye to cross an absorption axis of the polarizing layer as viewed in a thickness direction of the light control layer.

Abstract: A light control device including a first transparent electrode, a second transparent electrode, a light control layer sandwiched vertically between the first transparent electrode and the second transparent electrode and including a polymer network in which domains each filled with a liquid crystal composition are dispersed, and a pair of polarizing layers sandwiching the light control layer and positioned in a crossed Nicols relationship. The liquid crystal composition includes liquid crystal molecules that change to a vertical orientation upon application of a driving voltage to the light control layer.

Abstract: A light control module including a light control sheet and a drive circuit that applies a voltage to a first electrode and a second electrode of the light control sheet. The light control sheet includes a light control layer switchable between a transparent state and an opaque state according to an applied voltage. The light control sheet has a feeding area for applying a voltage to the first and second electrodes. The light control sheet is formed such that when the light control sheet receives a voltage that causes a transmittance of the light control sheet to be equivalent to a Munsell value of 90% in a region closest to the feeding area, the light control sheet has a transmittance equivalent to a Munsell value of 50% in a region farthest from the feeding area, where a Munsell value of 100% is a maximum transmittance of the light control sheet.

Abstract: A light control sheet including a light control layer sandwiched between first and second orientation layers and including a polymer network in which domains are dispersed and filled with a liquid crystal composition including a liquid crystal molecule and a dichroic dye, a pair of transparent electrodes sandwiching the orientation layers, and a polarizing layer positioned on an opposite side of the first orientation layer to the light control layer. The light control layer has a transmittance that increases upon application of a driving voltage to the pair of transparent electrodes. When the driving voltage is not applied between the transparent electrodes, the orientation layers orient the liquid crystal molecule and the dichroic dye horizontally to the orientation layers and orient an orient absorption ax of the dichroic dye to cross an absorption axis of the polarizing layer as viewed in a thickness direction of the light control layer.

Abstract: A light control device including a first transparent electrode, a second transparent electrode, a light control layer sandwiched vertically between the first transparent electrode and the second transparent electrode and including a polymer network in which domains each filled with a liquid crystal composition are dispersed, and a pair of polarizing layers sandwiching the light control layer and positioned in a crossed Nicols relationship. The liquid crystal composition includes liquid crystal molecules that change to a vertical orientation upon application of a driving voltage to the light control layer.

Abstract: A light control module including a light control sheet and a drive circuit that applies a voltage to a first electrode and a second electrode of the light control sheet. The light control sheet includes a light control layer switchable between a transparent state and an opaque state according to an applied voltage. The light control sheet has a feeding area for applying a voltage to the first and second electrodes. The light control sheet is formed such that when the light control sheet receives a voltage that causes a transmittance of the light control sheet to be equivalent to a Munsell value of 90% in a region closest to the feeding area, the light control sheet has a transmittance equivalent to a Munsell value of 50% in a region farthest from the feeding area, where a Munsell value of 100% is a maximum transmittance of the light control sheet.

Abstract: A head-up display device includes: a light source; a liquid crystal display device that controls a transmittance of light from the light source and displays an image on a display member; an illuminance sensor that measures an environmental illuminance; and a control circuit that uses a measurement result of the illuminance sensor to control a brightness of the light source. The control circuit controls the brightness of the light source to prevent a border caused by a difference between a black brightness of a display area displayed on the display member by the liquid crystal display device and a black brightness of a background around the display area from being visually recognized.

Abstract: A liquid crystal display device for a head-up display device includes: a light source unit including a reflection film provided on a substrate, and a light-emitting element; a liquid crystal display element including a first polarizer provided on the light source unit side, and a second polarizer disposed to be opposed to the first polarizer via a liquid crystal layer; a retardation plate provided between the reflection film and the first polarizer, and imparting a retardation of ?/4 to light; a reflective polarizer provided between the retardation plate and the first polarizer, and reflecting a light component which is parallel to a reflection axis; and a diffusion member provided between the reflective polarizer and the first polarizer, and diffusing light.

Abstract: A liquid crystal display device for a head-up display device includes: a light source unit including a reflection film provided on a substrate, and a light-emitting element; a liquid crystal display element including a first polarizer provided on the light source unit side, and a second polarizer disposed to be opposed to the first polarizer via a liquid crystal layer; a retardation plate provided between the reflection film and the first polarizer, and imparting a retardation of ?/4 to light; a reflective polarizer provided between the retardation plate and the first polarizer, and reflecting a light component which is parallel to a reflection axis; and a diffusion member provided between the reflective polarizer and the first polarizer, and diffusing light.

Abstract: A photovoltaic light-polarizing element includes a first transparent electrode, an alignment film, an electron collector, dichroic dye molecules, a second transparent electrode and an electron supplier. The first transparent electrode is formed on a first transparent substrate. The alignment film is formed on the first transparent electrode and is alignment-processed in a first direction. The electron collector is formed on the alignment film as a porous layer having pores aligned in a second direction orthogonal to the first direction. The second transparent electrode is formed on a second transparent substrate, the second transparent electrode facing the first transparent electrode with a predetermined gap. The electron supplier is arranged in the gap between the first transparent electrode and the second transparent electrode. And the dichroic dye molecules are arranged in the pores of the porous layer such that the dichroic dye molecules are aligned in the second direction.

Abstract: A liquid crystal display device includes a liquid crystal cell including a liquid crystal layer twist-aligned at 90° sandwiched between a pair of substrates, first and second polarizing layers arranged to sandwich the liquid crystal cell therebetween so that their absorption axes set to parallel with directions crossing aligning treatment directions of the substrates at 45°, and viewing angle compensating plates respectively arranged between the polarizing layers and the liquid crystal cell. A total value of retardations in a thickness direction, defined as a value of a product of a phase difference within a plane perpendicular to substrate surfaces of the liquid crystal cell and a layer thickness, of optical layers present between the polarizing layers is set to a value that substantially cancels out a retardation in a liquid crystal layer thickness direction when a saturation voltage is applied to the liquid crystal layer.

Abstract: An indicated position detecting apparatus includes a display module having a display screen, and a plurality of microphones to detect a contact sound to the display screen. The plurality of microphones are arranged at an outer peripheral portion of the display screen to be apart from each other. A time difference acquisition unit acquires arrival time differences of the contact sound between two microphones in each of two combinations of the plurality of microphones. A positional information acquisition unit derives two hyperbolas corresponding to the arrival time differences acquired by the time difference acquisition unit, each hyperbola having focal points at the two microphones in each of the two combinations of the plurality of microphones, and acquires an intersection of the two derived hyperbolas as information of a position where the contact sound is generated.

Abstract: A liquid crystal display device includes a liquid crystal cell including a liquid crystal layer twist-aligned at 90° sandwiched between a pair of substrates, first and second polarizing layers arranged to sandwich the liquid crystal cell therebetween so that their absorption axes set to parallel with directions crossing aligning treatment directions of the substrates at 45°, and viewing angle compensating plates respectively arranged between the polarizing layers and the liquid crystal cell. A total value of retardations in a thickness direction, defined as a value of a product of a phase difference within a plane perpendicular to substrate surfaces of the liquid crystal cell and a layer thickness, of optical layers present between the polarizing layers is set to a value that substantially cancels out a retardation in a liquid crystal layer thickness direction when a saturation voltage is applied to the liquid crystal layer.

Abstract: A liquid crystal display device includes a liquid crystal cell including a liquid crystal layer twist-aligned at 90° sandwiched between a pair of substrates, first and second polarizing layers arranged to sandwich the liquid crystal cell therebetween so that their absorption axes set to parallel with directions crossing aligning treatment directions of the substrates at 45°, and viewing angle compensating plates respectively arranged between the polarizing layers and the liquid crystal cell. A total value of retardations in a thickness direction, defined as a value of a product of a phase difference within a plane perpendicular to substrate surfaces of the liquid crystal cell and a layer thickness, of optical layers present between the polarizing layers is set to a value that substantially cancels out a retardation in a liquid crystal layer thickness direction when a saturation voltage is applied to the liquid crystal layer.

Abstract: A photovoltaic polarizing element includes a first transparent electrode, an electron collector, dichroic dye molecules, a second transparent electrode and an electron supplier. The first transparent electrode is formed on a first transparent substrate. The electron collector is formed on the first transparent electrode. The dichroic dye molecules are arranged in and/or on the electron collector and aligned in a predetermined direction. The second transparent electrode is formed on a second transparent substrate. The electron collector and the second transparent electrode face each other with a gap having a predetermined thickness. The electron supplier arranged between the first transparent electrode and the second transparent electrode. An energy level of the dichroic dye molecules in an excited state is higher than that of the electron collector, and the energy level of the dichroic dye molecules in a ground state is lower than that of the electron supplier.

Abstract: An indicated position detecting apparatus includes a display module having a display screen, and a plurality of microphones to detect a contact sound to the display screen. The plurality of microphones are arranged at an outer peripheral portion of the display screen to be apart from each other. A time difference acquisition unit acquires arrival time differences of the contact sound between two microphones in each of two combinations of the plurality of microphones. A positional information acquisition unit derives two hyperbolas corresponding to the arrival time differences acquired by the time difference acquisition unit, each hyperbola having focal points at the two microphones in each of the two combinations of the plurality of microphones, and acquires an intersection of the two derived hyperbolas as information of a position where the contact sound is generated.

Abstract: A broadcasting receiving apparatus includes a liquid crystal display device including a liquid crystal cell in which a liquid crystal layer that is twist-aligned at 90° and sandwiched between a pair of substrates, first and second polarizing layers arranged to sandwich the cell therebetween so that their absorption axes are set in parallel with directions crossing aligning treatment directions of the substrates at 45°, and viewing angle compensating plates respectively arranged between the polarizing layers and the cell. A total value of retardations in a thickness direction, defined as a value of a product of a phase difference within a plane perpendicular to substrate surfaces of the cell and a layer thickness, of optical layers present between the polarizing layers is set to a value that substantially cancels out a retardation in a liquid crystal layer thickness direction when a saturation voltage is applied to the liquid crystal layer.

Abstract: A liquid crystal display device includes a liquid crystal cell including a liquid crystal layer twist-aligned at 90° sandwiched between a pair of substrates, first and second polarizing layers arranged to sandwich the liquid crystal cell therebetween so that their absorption axes set to parallel with directions crossing aligning treatment directions of the substrates at 45°, and viewing angle compensating plates respectively arranged between the polarizing layers and the liquid crystal cell. A total value of retardations in a thickness direction, defined as a value of a product of a phase difference within a plane perpendicular to substrate surfaces of the liquid crystal cell and a layer thickness, of optical layers present between the polarizing layers is set to a value that substantially cancels out a retardation in a liquid crystal layer thickness direction when a saturation voltage is applied to the liquid crystal layer.

Abstract: A liquid crystal display device includes a liquid crystal cell including a liquid crystal layer twist-aligned at 90° sandwiched between a pair of substrates, first and second polarizing layers arranged to sandwich the liquid crystal cell therebetween so that their absorption axes set to parallel with directions crossing aligning treatment directions of the substrates at 45°, and viewing angle compensating plates respectively arranged between the polarizing layers and the liquid crystal cell. A total value of retardations in a thickness direction, defined as a value of a product of a phase difference within a plane perpendicular to substrate surfaces of the liquid crystal cell and a layer thickness, of optical layers present between the polarizing layers is set to a value that substantially cancels out a retardation in a liquid crystal layer thickness direction when a saturation voltage is applied to the liquid crystal layer.

Abstract: A liquid crystal display device includes a liquid crystal cell including a liquid crystal layer twist-aligned at 90° sandwiched between a pair of substrates, first and second polarizing layers arranged to sandwich the liquid crystal cell therebetween so that their absorption axes set to parallel with directions crossing aligning treatment directions of the substrates at 45°, and viewing angle compensating plates respectively arranged between the polarizing layers and the liquid crystal cell. A total value of retardations in a thickness direction, defined as a value of a product of a phase difference within a plane perpendicular to substrate surfaces of the liquid crystal cell and a layer thickness, of optical layers present between the polarizing layers is set to a value that substantially cancels out a retardation in a liquid crystal layer thickness direction when a saturation voltage is applied to the liquid crystal layer.