Abstract: An image display device is provided that allows easy adjustment of positional deviation in an optical axis direction of an optical modulation element from the outside. The image display device includes: a housing including an operation surface; an optical modulation element that is housed in the housing and that includes an image-forming surface that modulates light to form an image; a holding portion that movably holds the optical modulation element at least in a direction perpendicular to the image-forming surface; and an adjusting portion including at least one wire member, one end of the wire member being connected to the holding portion and the other end rotatably attached to the operation surface. Holding portion includes a movable portion that is moved in a direction perpendicular to the image-forming surface by the rotation of the other end of the wire member.

Abstract: A display data processing device performs color adjustment on gradation values of pixels of a frame image of an input video signal and outputs the adjusted gradation values to a display device. The device includes a first gamma correction unit configured to set the gradation value as the first input gradation value and to convert the first input gradation value into the first corrected gradation value. The device includes a video gain correction unit configured to perform color adjustment on the first corrected gradation value according to video gain correction and to output the result as a video gain corrected gradation value. The device includes a second gamma correction unit configured to set the video gain corrected gradation value as the second input gradation value and to convert the second input gradation value into the second corrected gradation value.

Abstract: An acquirer acquires abnormality information indicating that an abnormality has occurred in equipment provided in a conference room. The equipment is, for example, a display device such as a display or a projector. A conference information generator generates conference information indicating a progress status of a conference which is carried out in the conference room by processing information output from a device provided in the conference room. An information transmitter determines a first timing which is a timing at which abnormality-relevant information which is information to be transmitted due to occurrence of the abnormality is transmitted using the conference information and transmits the abnormality-relevant information to the equipment or another device at the first timing.

Abstract: A first overcurrent detecting unit to detect whether or not a current supplied from a power source unit to an external device exceeds a first criterion value. A second overcurrent detecting unit to detect whether or not the current supplied from the power source unit to the external device exceeds a second criterion value that is a criterion value higher than the first criterion value, a timer unit in which a time corresponding to a time from a time point at which switching from electric power supplied from the power source unit to the external device in a period, in which a negotiation is performed, to electric power corresponding to a result of the negotiation with the external device is performed to a time before the supply of the electric power becomes stable is set.

Abstract: A display device includes: a reception unit to receive a video signal input from an external output correspondence input terminal and a timing signal corresponding to the video signal; a video processing unit to perform processing on a video signal input from an external output non-correspondence input terminal and the video signal, acquired from the reception unit, input from the external output correspondence input terminal; and a control unit to acquire the timing signal supplied from the reception unit as a timing signal corresponding to a video signal of non-display in a state that a displayed video is based on the video signal input from the external output non-correspondence input terminal, and the video signal of non-display input from the external output correspondence input terminal at that time is acquired by the reception unit in a case of performing a process of a high-speed input switching function for switching between the video signal input from the external output non-correspondence input ter

Abstract: A multi-projection system for projecting an image from a plurality of projectors onto a three-dimensional object, includes a master projector and a slave projector. The slave projector estimates an amount of blur in an image projected from the projector itself on a plurality of planes of the three-dimensional object, and provides the estimated amount of blur in the image to the master projector. The master projector estimates an amount of blur in an image projected from the projector itself on a plurality of planes of the three-dimensional object, and determines a region of the image projected from the plurality of projectors for each of the plurality of planes based on the amount of blur in the image estimated by the master projector and the amount of blur in the image estimated by the slave projector.

Abstract: A video reproduction device includes a calibration image generator configured to generate calibration images to be displayed by a display and a display device; a receiver configured to receive, from an image capturing device, a captured image in which the calibration image displayed by the display and the calibration image displayed by the display device are captured or information generated on the basis of the captured image; a corrected data calculator configured to calculate color-component-corrected data from a color component difference between the calibration image displayed by the display and the calibration image displayed by the display device; and a second video signal output configured to perform color correction on a video signal representing the same video as the video signal that is output to the display according to the corrected data obtained by the corrected data calculator and output a color-corrected video signal to the display device.

Abstract: An image display device has an image display unit including a display for displaying images and a backlight arranged behind the display to illuminate the display. The image display device includes an opening formed behind the image display unit, an optical sensor which detects light passing through the opening, and a sensor holder which holds the optical sensor, and the opening includes a protruding diaphragm and a passage hole.

Abstract: A video display apparatus includes a power source that supplies first electric power and supplies second electric power that is different from the first electric power to an external device, a current detector that detects a current value when the second electric power is supplied to the external device, an electric power supply controller that includes a plurality of electric power supply modes and performs control that supplies electric power corresponding to one electric power supply mode among the plurality of electric power supply modes to the external device as the second electric power, and a controller that performs control that limits the first electric power when the current value detected by the current detector reaches a predetermined first threshold value.

Abstract: A method includes displaying attraction information that identifies at least a plurality of candidate attractions, wherein the candidate attractions are attractions that are not previously recommended; receiving a first user input comprising a selection of a single candidate attraction among the plurality of candidate attractions; displaying property information that identifies a plurality of properties after receiving the first user input; receiving a second user input comprising a selection of one or more properties among the plurality of properties; and associating the selected candidate attraction and the selected one or more properties to permit respective devices disposed at the one or more properties to display information of the selected candidate attraction.

Abstract: A method includes displaying attraction information that identifies at least a plurality of candidate attractions, wherein the candidate attractions are attractions that are not previously recommended; receiving a first user input comprising a selection of a single candidate attraction among the plurality of candidate attractions; displaying property information that identifies a plurality of properties after receiving the first user input; receiving a second user input comprising a selection of one or more properties among the plurality of properties; and associating the selected candidate attraction and the selected one or more properties to permit respective devices disposed at the one or more properties to display information of the selected candidate attraction.

Abstract: A method includes permitting, by a server, a first device to join an online meeting held with at least a third device based on receiving a user input from the first device. The method includes permitting, by the server, a second device to join the online meeting in addition to the first device based on receiving login information associated with a user account used by the first device from the second device. The method includes providing, by the server and to at least the third device in the online meeting, screen information of the second device after permitting the second device to join the online meeting.

Abstract: A display device is for displaying an image generated by an image processing device. The display device includes: a video decoding and input unit that receives an encoded image of a reference signal generated by the image processing device, and decodes the encoded image; a video display unit that performs image quality correction of the decoded image and displays, on a display panel, the image to which the image quality correction has been performed; and an image cut-out unit that cuts out an image at a position corresponding to the reference signal from an image to which the image quality correction has not been performed and transmits the cut out image to which the image quality correction has been performed, to the image processing device.

Abstract: A position detection device has: a light sensor including a first light detection unit being located at a position facing a display screen on a first display device, and a second light detection unit being located at a position facing a display screen on a second display device that is provided adjacent to the first display device; and a position detection unit configured to detect a distance across a non-display region between the display screen of the first display device and the display screen of the second display device based on results of detection, by the first light detection unit, of a position adjustment image displayed on the display screen of the first display device, results of detection, by the second light detection unit, of a position adjustment image displayed on the display screen of the second display device, and display content of the position adjustment images.

Abstract: A phosphor holder includes: a rectangular flat plate-like pedestal; a plurality of phosphor holder attachment surfaces provided at a plurality of points, respectively, on an outer peripheral section of the pedestal and protruding in a first direction by a predetermined height with respect to surroundings; a base mounted substantially in a center of a surface of the pedestal facing in the first direction; a motor mounted on the base and having a rotating shaft substantially orthogonal to an in-plane direction of the pedestal; a phosphor wheel on which a phosphor is formed and that is rotated by the motor; and a plurality of adjustment shims mounted on the plurality of phosphor wheel attachment surfaces and brought into contact with the holder attachment surface.

Abstract: A cooling device air-cools a heat-generating portion within an electronic apparatus, the cooling device including a fan that generates a cooling airflow and vibration-generating unit that generates flow-induced vibration in the cooling airflow that is conveyed to the heat-generating portion. The electronic apparatus includes the cooling device and the heat-generating portion that is the object of cooling by the cooling device. A projection-type display device displays an image by projecting the image, the projection-type display device including the cooling device and a liquid crystal unit that forms the images to be projected and that is the heat-generating portion that is the object of cooling by the cooling device.

Abstract: A phosphor wheel is obtained by providing a phosphor on a rotatable substrate. The phosphor is formed of a plurality of small pieces, and the small pieces are arranged such that the phosphor has a ring shape, or a shape obtained by cutting away a portion from a ring shape about an axis of rotation of the substrate.

Abstract: A light source device includes: a phosphor rotating body on which a phosphor that is formed on a surface and that is used in a rotating state with an axis of rotation that is perpendicular to the surface; a first excitation light source that generates first fluorescent light by irradiating first excitation light upon a first position that is separated from the center of rotation on the surface; a detection light generation unit that irradiates detection light upon a second position that is separated from the center of rotation on the surface and that differs from the first position; an optical detection unit that supplies a detection signal corresponding to emission light emitted from the phosphor rotating body in response to the detection light; and a control unit that receives the detection signal and controls the intensity of the first excitation light on the basis of the detection signal.

Abstract: A projection type display apparatus includes illumination unit that emits a plurality of color lights having a predetermined polarization direction, a plurality of optical path adjustment units that totally reflect the plurality of color lights, respectively, a plurality of optical modulation units that modulates the plurality of color lights totally reflected by the plurality of optical path adjustment units, respectively, to emit a plurality of modulated color lights, a synthesis unit that emits the plurality of modulated color lights emitted from the optical modulation units in a same direction, and a correction unit that is arranged on an optical path between the illumination unit and the synthesis unit and that changes a polarization state of light that entered the correction unit to covert light incident on the synthesis unit into linearly polarized light.

Abstract: The present invention realizes both a laser light source that, despite the use of a plurality of laser diodes and transmission through a modulator that allows transmission of a specific orientation of linearly polarized light, is free from the occurrence of uneven luminance or uneven color, and a projector device that uses this laser light source. The laser light source is provided with a plurality of laser diodes that are mounted on a substrate and that emit linearly polarized light in the same direction. The plurality of laser diodes are arranged such that the orientation of the emitted linearly polarized light is different for each laser diode.