Abstract: A gradation correction map generating unit generates a gradation correction map based on a brightness unevenness map, a rotation unevenness map, and a second gamma characteristic. The brightness unevenness map indicates a correspondence relation between a plurality of positions in a screen of a display unit, and uncorrected brightness values, the uncorrected brightness values being brightness values at time of performing no correction when the display unit is installed at a predetermined angle. The rotation unevenness map indicates a correspondence relation between the plurality of positions or other plurality of positions, and differences in brightness values corresponding to a rotation angle of the display unit. The second gamma characteristic indicates a correspondence relation between a brightness value at a specific position in the screen, and a gradation of an image signal.

Abstract: A color conversion data generation device includes: an acquisition unit that acquires end point correction values for correcting a color of at least one end point of a RGB color space; an end point color correction value generation unit that corrects the color of the at least one end point using the acquired end point correction values, to generate end point color correction values; a normalization unit that normalizes an intermediate color in the RGB color space using a normalization coefficient; an interpolation unit that interpolates the normalized intermediate color using the generated end point color correction values by means of same interpolation characteristic as that of a 3D LUT circuit, to generate temporary correction values; and an inverse normalization unit that inverse-normalizes the generated temporary correction values using an inverse normalization coefficient defined according to the normalization coefficient, to generate correction values of the intermediate color.

Abstract: A display apparatus includes a sight line detection sensor that detects a sight line of a user; a distance measurement sensor that measures a distance between a display panel and a user; and a control unit that determines a control region set in separate light emitting parts arranged on the display panel, where an amount of light emission is controlled in the control region, based on the sight line detected by the sight line detection sensor and the distance measured by the distance measurement sensor. Typically, the control unit determines the control region in a manner such that the longer the distance measured by the distance measurement sensor, the smaller the control region, and the shorter the distance measured by the distance measurement sensor, the larger the control region.

Abstract: A backlight device includes a plurality of light sources that emit light of different colors from each other, a plurality of color sensors that receive mixed-color light including light emitted from the light sources to detect light emission states of the light sources, a temperature sensor that measures a temperature in a proximity of the plurality of light sources, a brightness conversion unit that separates the mixed-color light to obtain a detection value for each of the light sources by converting values indicating the detected light emission states, and a calculation unit that corrects the obtained detection value by using information indicating a relationship between the measured temperature and a correction value, the calculation unit determining drive values for the light sources based on the corrected detection value.

Abstract: A projector includes: a plurality of image-forming units each including an image forming surface provided with a plurality of micromirrors; a plurality of reflecting units that are provided so as to respectively reflect the plurality of image beams formed by the image-forming units; a beam-combining unit that receives the plurality of image beams via the plurality of reflecting units and emits a combined image beam in which the plurality of image beams are combined such that the propagation directions coincide; and a projection unit that projects the combined image beam emitted from the beam-combining unit. At least two of the image-forming units are arranged such that the image-forming surface of each image-forming means lies in the same plane.

Abstract: A projection type display apparatus includes: a semiconductor laser element that outputs laser light based on supply of current; a digital mirror device (DMD) that modulates the light output from the semiconductor laser element and emits the modulated light; a projection lens that projects the incident light via the DMD; a drive unit that drives the semiconductor laser element and includes a current detection unit for detecting the current value of the current flowing through the semiconductor laser element; and a controller that, when the current value detected by the current detection unit becomes greater than a first threshold, controls driving of the DMD so that the light output from the DMD will not be incident on the projection lens, and when the current value detected becomes greater than a second threshold greater than the first threshold, causes the drive unit to cut off the supply of current.

Abstract: A light source device capable of improve energy efficiency is provided. A light source device includes a yellow phosphor that emits yellow fluorescence excited by exciting light, a red laser light source that emits red laser light, a first light combining unit that generates first composite light by combining the emitted yellow fluorescence with the emitted red laser light, a blue laser light source that emits blue laser light, and a second light combining unit that generates second composite light by combining the combined first composite light with the emitted blue laser light.

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.

Abstract: An image display apparatus includes: a transparent board that transmits visible light; a screen that is provided on one surface of the transparent board; a projector that projects an image toward the screen from the other surface side of the transparent board; and a support unit that supports the transparent board from the other surface side. The projector is disposed outside of the space that is enclosed by the transparent board and the support unit.

Abstract: A projection-type display which projects and displays images in accordance with an image signal includes a light source for projecting the images, output means that is equipped with a coil and switch, that uses electromagnetic induction of the coil to supply a current, and that changes the magnitude of the current by means of the switch, a cooling fan that cools the projection-type display device and for which the rotational speed is variable; and control means that, upon receiving an instruction to set a first mode in which a first current is intermittently supplied to the light source.

Abstract: A projector includes a DMD that forms an image, a projection lens that projects the image formed by the DMD on a projected surface, and a display control unit that controls an image forming operation of the DMD. The display control unit forms a frame image by sequentially forming a plurality of images using a combined pixel which is configured of a plurality of pixels, and with respect to temporally continuous two images, the display control unit forms one image at a position that is shifted by a distance that corresponds to the pixel pitch of the DMD in a predetermined direction relative to the other image.

Abstract: A structure for cooling a semiconductor element includes an element body and a lead terminal extending from one surface of the element body in a direction intersecting the one surface. The semiconductor element cooling structure includes a heat sink. The heat sink includes a contact surface that is in contact with the one surface of the element body, a through-hole which is formed in the contact surface and through which the lead terminal passes, and a space portion that communicates with the through-hole and that is configured to house a substrate connected to the lead terminal.

Abstract: A light source device includes: a light source for emitting excitation light; a first optical system for condensing excitation light emitted from the light source into a rectangular shape; a fluorescent wheel having a plurality of light emitting portions emitting different color light in response to irradiation of the excitation light formed in such a manner in which each of the multiple light emitting portions is irradiated with the excitation light condensed in a rectangular shape by the first optical system; a second optical system for condensing color light emitted from each of the multiple light emitting portions in response to irradiation of the rectangularly condensed excitation light; and a rotating prism that is rotatably arranged on the optical path of the light condensed by the second light source and that shifts the optical axis of the light condensed by the second optical system as the prism turns.

Abstract: A display device includes an emission part further including a first light source emitting a first light, a second light source emitting a second light having a longer wavelength than the first light, and a fluorescent substance which is excited by the first light and the second light so as to emit a third light, and a controller configured to generate a drive value of the first light source and a drive value of the second light source based on a luminance of the first light, a luminance of the second light, a luminance of the third light, a first target luminance for the first light source, a second target luminance for the second light source, and a third target luminance for the fluorescent substance, thus controlling two light sources based on the drive values of the first and second light sources.

Abstract: A control device includes: a storage unit that stores own-device version information indicating a version of firmware that an own device has; a version information acquisition unit that imports, from a plurality of control devices, other-device version information indicating a version of firmware that each of the plurality of control devices has; and a version management unit that compares an own-device version indicated by the own-device version information stored in the storage unit with each of a plurality of other-device versions indicated by the other-device version information imported by the version information acquisition unit, when the version management unit determines according to a result of the comparison that the own-device version is older than a newest other-device version in the plurality of other-device versions, the version management unit issuing a transfer request for firmware corresponding to the newest other-device version, to a control device corresponding to the newest other-device ve

Abstract: A display device is provided with a plurality of solid-state light sources (101-103) and a coolant-circulating means (100) that is equipped with a flow path (100a) formed to pass through each of the solid-state light sources (101-103) and that circulates a coolant via the flow path (100a). Each of the solid-state light sources (101-103) has the property that the luminance thereof changes in response to a temperature change. The flow path (100a) is formed such that the coolant first passes through solid-state light sources having a greater degree of luminance change according to the above-described property of the solid-state light sources (101-103).

Abstract: A display device includes a drive control unit that changes a frequency of a drive signal based on a brightness of a light source of a backlight when a duty ratio of the drive signal is in a first range or is in a third range, the drive signal being a pulse signal for driving the light source. The drive control unit fixes the frequency of the drive signal to a predetermined frequency when the duty ratio of the drive signal is in a second range.

Abstract: A system, method, and computer software application for the delivery and display of third-party multi-media content in a public space on locally managed display devices, wherein the delivery and presentation of the third-party multi-media content is manageable remotely from the public space, sale of display time for display on the locally managed display devices is manageable independently from local management, and the display and remote-management of the third-party content can co-operate and communicate with an incumbent multi-media management and display application operating on the locally managed display devices without requiring a re-tooling or custom programming of the incumbent multi-media management and display application.

Abstract: A display device includes: a generating unit that generates display chromaticity based on a degradation value, a set chromaticity and device chromaticity, the display chromaticity being chromaticity of a white point to be displayed on the display device, the degradation value indicating a degree of degradation of a backlight, the set chromaticity being chromaticity of a white point based on user setting, the device chromaticity being chromaticity of a white point at which brightness becomes highest in the display device. The generating unit makes the display chromaticity approach the device chromaticity from the set chromaticity, as the degree of degradation indicated by the degradation value increases.