Abstract: An image display device includes a plurality of signal input parts, a plurality of sub-controllers configured to process video signals from a plurality of signal input parts, and a controller configured to generate a display screen to be displayed on a display. The controller obtains the timing information for a video signal from the sub-controller based on the display information installed in advance.

Abstract: A video display apparatus includes: an inputter that receives an input of divided video signals representing divided images obtained by dividing an output image and acquires signal information for each of the divided video signals; a video signal processor that applies processing to the divided video signals and generates an output video signal representing an image obtained by combining the divided images; a controller that acquires the signal information from the inputter and supplies a control signal relating to the processing to the video signal processor; and a display that displays the image represented by the output video signal, and the number of kinds of signal information acquired by the controller with respect to some divided video signals among the divided video signals is greater than the number of kinds of signal information acquired by the controller with respect to the other divided video signals.

Abstract: A projector that can increase the brightness of an image, includes: first and second image forming elements that each include micromirrors; a projection lens that projects images formed on the first and second image forming elements; and a light source/optical unit that irradiates the first and second image forming elements with first blue light and second blue light in a first display period, and irradiates the first image forming element with the green light and irradiates the second image forming element with the red light in a second display period.

Abstract: A plurality of semiconductor light-emitting elements are to be efficiently cooled. There are provided a plurality of semiconductor light-emitting elements that are arranged in n rows and m columns, and a plurality of flow channels where a cooling medium flows through, the plurality of flow channels being formed to sandwich the n rows of semiconductor light-emitting elements or the m columns of semiconductor light-emitting elements.

Abstract: A light source device includes: a light source unit provided with a plurality of laser light sources provided in an array, the laser light sources being divided into first and second laser light source groups; a first diffusion plate that diffuses light emitted by the first laser light source group and emits first diffused light; a second diffusion plate that diffuses light emitted by the second laser light source group and emits second diffused light having a diffusion angle greater than that of the first diffused light; and optical path merging members that bend the optical path of the first diffused light to merge the optical path of the first diffused light with the optical path of the second diffused light and supply third diffused light in which the first and second diffused light are mixed.

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: The present invention provides a method for establishing a connection path by way of a wireless LAN path of a projector and a wireless LAN terminal even when the operating mode is switched. The method establishes a wireless LAN connection between a wireless LAN terminal and a projector that can operate as an access point apparatus or a client apparatus of a wireless LAN. The projector projects connection information that indicates SSID, the wireless LAN terminal receives the connection information as input by way of a provided input unit, and further, operates as an access point apparatus. The projector detects the wireless LAN terminal that is operating as an access point device by means of a site survey, and the projector then connects to the wireless LAN terminal as a client apparatus.

Abstract: A projector apparatus that can effectively reduce bending of a base plate supporting a lens shifting unit thereon and facilitates replacement of unit parts in the event of a failure is provided. The projector apparatus includes: a base plate attached inside a projector body; a lens supporting unit attached to the base plate and supporting a projection lens so as to be movable relative to the base plate; guiding mechanisms for guiding the lens supporting unit so as to be freely movable in a horizontal direction and a normal direction relative to the base plate; and fixing devices which fix the base plate to the projector body. The fixing devices include a plurality of first fixing devices provided at a peripheral edge of the base plate, and second fixing devices provided on an inner side of the plurality of first fixing devices.

Abstract: A display device includes a signal detector for detecting gradation pixel data input to a display having multiple pixels, a current detector for detecting currents supplied to at least part of the pixels included in the multiple pixels, and an output part for outputting current data corresponding to currents supplied to the part of the pixels and signal data corresponding to gradation pixel data used for the part of the pixels. Accordingly, it is possible to compare current data with signal data, and therefore, it is possible to confirm whether or not video signals are correctly displayed on a screen.

Abstract: A display system includes: a display device that transits from a power-off state to a power-on state; and a brightness calculation device that calculates a brightness setting sequence based on a humidity amount over a first period in which the display device is in the power-off state, the brightness setting sequence being a sequence of a setting value of a brightness of the display device during a second period, the second period starting from when the display device transits to the power-on state, the setting value changing in time series. The display device displays an image signal at a brightness according to the brightness setting sequence.

Abstract: An image display device that is daisy-chain connected includes: a storage unit that holds identification data that include information of its own device; and a control unit that, when a next-stage side apparatus is connected that is an image display device that can receive a video signal relayed by its own device, receives the identification data of the next-stage side apparatus from that next-stage side apparatus, and when the identification data that were received indicate that the next-stage side apparatus is the same apparatus type as its own device, retains the identification data of its own device without alteration.

Abstract: A display device is used in combination with a light-emitting device that emits first signal light. The display device has: a user interface unit that receives input operations using an indicator upon a display screen; and an imaging unit that captures images of the display screen and the first signal light. On the basis of captured images supplied from the imaging unit, the user interface unit takes a region of the display screen that is within a distance range that is determined in advance from the detected position of the first signal light as a valid operation region in which input operations using the indicator are valid.

Abstract: An image display method includes: obtaining a composite image that was displayed immediately prior to when a video signal is lost, the composite image being an image in which a first image of an on-screen display (OSD) menu is combined with a display image that is based on the video signal before lost; after the video signal is lost, combining a second image of the OSD menu with the composite image to obtain a combined composite image; and displaying the combined composite image.

Abstract: A projector has: a plurality of light sources, a plurality of phosphor wheels to which are affixed a plurality of arc-shaped segments of phosphor that takes as excitation light the light from the light sources to emit light, a synthesizing optical system that synthesizes light emitted by the plurality of phosphor wheels, and a phosphor rotation control unit that controls the rotation of the plurality of phosphor wheels such that the timing at which the quantity of light emitted by the phosphor wheels becomes a minimum value differs for each of the plurality of phosphor wheels.

Abstract: A luminance adjustment device is configured to adjust the luminance of a light source of a display by controlling a drive value of the light source of the display. The luminance adjustment device is configured to calculate the luminance corresponding to the used time of the light source according to a predetermined luminance characteristic, to calculate the drive value according to the luminance, to correct and add up the used time of the light source using a cubic value of the drive value, to correct the luminance according to the predetermined luminance characteristic based on a total used time, and to thereby correct the drive value.

Abstract: A light source device includes a light source bank that accommodates a plurality of semiconductor light-emitting elements, and a light source bank holder that mounts the light source bank on a first surface and includes a cooling mechanism provided on a second surface that is a back surface of the first surface.

Abstract: Transition to an electric power saving mode is performed without giving a user of a projector the false awareness that the projector is failing, a flicker phenomenon is suppressed and an image with a brightness in the electric power saving mode being is immediately projected, first to third electric powers electric power values which become smaller in this order are used as light source electric power, and a controller that, upon acceptance of an input for selecting the third electric power, causes the second electric power to be supplied to the light source and decreases an amplitude of the image signal, and after elapse of a fixed time, causes the third electric power to be supplied to the light source is included.

Abstract: A data transfer system includes a display device and a portable information terminal. The display device includes a first display panel having a first display screen for displaying an image, a terminal detection unit configured to detect that the portable information terminal has approached the first display screen, and a first display processing unit configured to cause the first display screen to display a storage location image which is an image indicating information about a storage location of data in another device when the terminal detection unit detects that the portable information terminal has approached the first display screen.

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 video signal monitoring method includes detecting at least one of luminance or chromaticity in a predetermined region among regions of a video displayed on a display device; converting the at least one of detected luminance or chromaticity into video identification information for identifying the video; and outputting the video identification information and a time at which the video was displayed.