Abstract: A switching power supply includes: transformer 60 which includes a primary winding and a secondary winding and outputs, through the secondary winding, an AC voltage based on the current supplied to the primary winding; switching element 61 which controls current supply to the primary winding; rectifying/smoothing circuit 65 which converts the AC voltage output from the secondary winding into a DC voltage; voltage detecting circuit 62 which detects the DC voltage converted by rectifying/smoothing circuit 65; feedback amplifier 63 which is supplied with the DC voltage detected by voltage detecting circuit 62 as one input and which is supplied with a reference voltage as the other input, so as to output a difference between the input voltage values; and control circuit 64 which controls switching element 61, so as to eliminate the difference detected at feedback amplifier 63.

Abstract: A display device includes: a display panel that displays an input video signal; and a video recording and reproduction unit that records and reproduces a video picture to be displayed on the display panel. The video recording and reproduction unit includes an image-size setting unit that reduces a size of a screen of the input video signal according to a multi-display configuration.

Abstract: An image projection device includes a light source that emits a plurality of colored lights and a projection section that modulates each colored light emitted by the light source according to image data and projects an image onto a projection surface, a storage section that stores projection surface information indicating a spectral reflectance of the projection surface, and a correction section that determines, when the image data is received, a correction value for correcting a color shift in the image on the projection surface using the projection surface information, and corrects an intensity value of a colored light emitted by the light source by controlling the light source according to the correction value.

Abstract: A cooling structure for light emitting elements for a liquid crystal panel according to the present invention includes: a long-shaped substrate that is disposed so as to extend along an edge of a light guide plate provided on a rear surface of a liquid crystal panel, and in which a plurality of through-holes are formed; a plurality of light emitting elements that are disposed on a front surface of the substrate so as to face the light guide plate; and a chassis that is provided at a rear surface side of the substrate, and the through-holes are arranged at a higher density at a center portion of the substrate in a long direction than at end portions of the substrate in the long direction.

Abstract: A method of remotely adjusting a display device is provided which introduces the concept of Pages as a superordinate concept of VCPs known as control or adjustment item codes under current standards, defines the maximum value of the VCP Pages, and controls the VCP Pages from a personal computer, thereby to define and control more VCPs.

Abstract: A moving image distribution server for distributing to a reproducing apparatus moving image data including video data and audio data and capable of prescribing decoding times and reproducing times for the video data and the audio data, the moving image distribution server including a data storage unit for storing in advance the moving image data including information as to the decoding times and the reproducing times for the video data and the audio data, a phase adjustment variable storage unit for storing a predetermined phase adjustment variable, and a first rewriter for reading the moving image data stored in the data storage unit, and changing the information included therein as to the decoding times or the reproducing times based on the predetermined phase adjustment variable to adjust the phase relationship between the video data and the audio data.

Abstract: A display device includes a calculation unit which calculates a required luminance according to a set luminance for each color of a backlight, for each of a first video signal and a second video signal, and obtains the higher of the required luminance corresponding to the first video signal and the required luminance corresponding to the second video signal as an objective luminance for each color based on a calculation result, a backlight driving unit which drives the backlight for each color according to the obtained objective luminance of each color, a detection unit which compares the required luminance with the objective luminance and detects, for each color, the required luminance corresponding to the video signal lower than the objective luminance, and a brightness adjustment unit which performs adjustment for each color so that an image corresponding to the video signal lower than the objective luminance is darkened.

Abstract: A light source apparatus includes excitation light sources, a phosphor unit, a dichroic mirror that reflects excitation light supplied from the excitation light sources toward the phosphor unit and that transmits fluorescent light emitted from the phosphor unit, and a collimator lens that is provided between the dichroic mirror and the phosphor unit and whose focal distance varies according to the wavelength. The phosphor unit is arranged at a position determined by the focal distance of the collimator lens for the fluorescent wavelength. The collimator lens includes low-dispersion lenses and a high-dispersion lens.

Abstract: A projector includes a plurality of light source boxes (1R, 1G, 1B) each accommodating at least one solid-state light source, emission colors of accommodated solid-state light sources being different from each other, a plurality of photodetectors (205c, 206c, 207c) that are provided within respective light source boxes and that detect light from the solid-state light sources, a plurality of drive units (202 to 204) that supply current to solid-state light sources (205b, 206b, 207b) provided within respective light source boxes, and a controller (201) that holds a reference value for the solid-state light source provided within each light source box for each emission color, that causes each drive to supply current to the solid-state light source provided within each light source box, and that adjusts the amount of current output from each drive unit such that the output value of each photodetector is at a reference value which corresponds to the emission color of the solid-state light source which is a corresp

Abstract: The present invention seeks to realize a small etendu illumination optical system, a longer operating life and a higher brightness. The illumination optical system comprises: a laser light source that generates an excitation light; a fluorescent substance that generates a fluorescent light in response to the excitation light, a light tunnel that outputs the excitation light input at one end thereof to the fluorescent substance from the other end thereof, and that outputs the fluorescent light generated by the fluorescent substance from the one end thereof; and a mirror that is placed within a light path between the laser light source and the light tunnel, and that reflects the fluorescent light, the mirror having an aperture formed thereon that allows the excitation light to pass through.

Abstract: A projection display device projects light modulated based on a video signal. The projection display device includes a light source, a first fan for cooling the light source, and a second fan different from the first fan. The number of revolutions of the first fan is increased or decreased with the increase or decrease of the output of the light source. The number of revolutions of the second fan is decreased when the number of revolutions of the first fan is increased, and increased when the number of revolutions of the first fan is decreased.

Abstract: An image display device includes: a display unit that includes a plurality of display lines; a detection unit that detects presence of an input of a predetermined position information signal; a signal output control unit that instructs whether or not to output a position information signal in accordance with a detection result by the detection unit; a signal output unit that outputs the position information signal in a case of being instructed; a display direction switching control unit that instructs switching of a vertical display direction to the display unit in accordance with the detection result; an image data input unit that receives image data including data for each display line; and an image data transmission switching unit that switches a transmission order of the data for each display line in accordance with the detection result, and transmits to the display unit the image data.

Abstract: Provided is an illumination device that includes: light source (101); light guiding means (102) where light from light source (101) is supplied to one end surface, and light incident from the one end surface is propagated inside to exit from the other end surface; illuminating optical systems (103, 104, 106, and 107) that spatially separate a luminous flux output from the other end surface of light guiding means (102) into a plurality of luminous fluxes and that form, on display element (110), an optical image formed on the other end surface of light guiding means (102); reflective polarizing plate (109) that is located between illuminating optical systems (103, 104, 106, and 107) and display element (110) and that transmits first polarized light while reflecting second polarized light different in polarized state from the first polarized light toward illuminating optical systems (103, 104, 106, and 107); reflecting element (105) that is disposed at a position where the plurality of luminous fluxes are spatia

Abstract: A display device in the invention comprises an OSP section and OSD switches 10 configured to include a plurality of switches for performing various kinds of setting operations using the OSD section. In OSD switches 10, switches 10a and 10b are disposed on a right side of a front bezel 2 and switches 10c and 10d are disposed on a lower side of the front bezel 2. By that, the OSD switches can be disposed so that a switch operation can be visually performed without an uncomfortable feeling, without increasing the thickness of a front bezel even if the front bezel is narrow.

Abstract: Provided is a projection type display device that has dust-proof and coolable optical components. According to an aspect of the present invention, the display device includes a case, a dust-proof structure that has a plurality of walls surrounding a plurality of optical components to prevent dust, and which is located in the case, and suction ports (7b and 7b?) formed in the case and configured to suck cooling air along one wall of the dust-proof structure to cool the optical components. The suction ports are separated into first suction port (7b) and second suction port (7b?) with a position of one wall set as a reference. First suction port (7b) is located to blow the cooling air to the dust-proof structure, while second suction port (7b?) is located to prevent direct blowing of the cooling air to the dust-proof structure. An area of first suction port (7b) is smaller than that of second suction port (7b?).

Abstract: This invention realizes an illumination optical system with a small etendue that has a longer lifetime and a high degree of brightness. The invention includes: a laser light source that generates excitation light; a phosphor that generates a fluorescent light by means of the excitation light; a light tunnel that projects the excitation light that is incident at one end towards the phosphor from another end, and projects a fluorescent light generated with the phosphor from the one end; and a dichroic mirror that is provided between the laser light source and the light tunnel, and that allows the fluorescent light or the excitation light to pass through, and reflects the remaining excitation or fluorescent light.

Abstract: A projection display device includes light sources having light-emitting elements for emitting lights in R, G, B colors, temperature sensors for the respective colors disposed near the light sources in the respective colors, light sensors for the respective colors disposed near the light sources in the respective colors for detecting light leakages from the light sources in the respective colors, a cooling unit for cooling the light sources in the respective colors, light modulators employing three panels of liquid crystal devices, a projection optical system, an amount-of-light controller for maintaining a predetermined ratio of the amounts of lights emitted from the light sources in the respective colors, and a cooling controller for controlling the cooling unit for the light sources in the respective colors.

Abstract: An image display device includes a light source; a power supply section that supplies power to light source; a cooling fan that cools the light source; an input section; a drive section that supplies a voltage to cooling fan; a control section that controls drive section and power supply section. The control section sets a first power value for the output of the power supply section and also a first voltage value for the output of the drive section. The control section measures a time at which the light source has been lighted. If the measured value exceeds a threshold, the control section gradually increases the output of the power supply section up to a second power value that is greater than the first voltage value over a predetermined time.