Abstract: An image display device which includes a parallax adjustment unit, a display unit, a parallax detector, and a maximum parallax detector. The parallax adjustment unit is configured to obtain a right-eye image signal and a left-eye image signal. The parallax adjustment unit is configured to adjust a parallax between the right-eye image signal and left-eye image signal and output an adjusted image signal that includes an adjusted left-eye and adjusted right-eye signal. The parallax detector is configured to detect an amount of parallax between the right-eye and left-eye image signals. The maximum parallax detector is configured to detect a maximum value. The display unit is configured to display a right-eye image and a left-eye image and to display an augmented image including the right-eye image and the left-eye image as well as a monitor image indicating the amount of parallax detected and the maximum value.

Abstract: An image display device 1 includes: a liquid crystal panel 11 having a plurality of pixels; and an overdrive execution section 50 configured to determine, with respect to each of target pixels for which overdrive is performed among the plurality of pixels of the liquid crystal panel 11, a gain usage value to be used for the overdrive, based on a predetermined set gain value, and to apply, based on the gain usage value, a liquid-crystal driving voltage to the corresponding target pixel, wherein with respect to a pixel, among the target pixels, for which it is judged that a gradation value in a current frame obtained from the video signal is an intermediate gradation value, the overdrive execution section 50 performs a gain suppressing operation for determining the gain usage value as a value smaller than the set gain value.

Abstract: An image display device includes a plurality solid-state light sources, a modulator configured to modulate light from a plurality of solid-state light sources, and an image display device configured to generate from a frame of image data, a plurality of subframes each further divided into subfields, and to display the plurality of subframes. The modulator turns off light output from all the solid-state light sources for the duration of one or more of the plurality of subframes, whereby it is possible to reduce motion blur arising from a hold-type display device, in which after-images remain on the retina of a person's eyes when viewing moving objects.

Abstract: A projection image display device has a plurality of light sources, a phosphor layer that emits light through excitation by at least any one of the light sources, an optical section, a temperature detector, a light-source intensity controller, an amplitude controller, a luminance controller. The optical section determines an optical path of light emitted from the light sources and the phosphor layer. The temperature detector directly or indirectly detects temperature of the phosphor layer or of the periphery of the phosphor layer. The light-source intensity controller controls intensity of an excitation light source that excites the phosphor layer. The amplitude controller controls the amplitude of a projection image signal. The luminance controller controls luminance of projection images by switching the light-source intensity controller and the amplitude controller according to a detected temperature.

Abstract: An image display device 1 includes: a liquid crystal panel 11 having a plurality of pixels; and an overdrive execution section 50 configured to determine, with respect to each of target pixels for which overdrive is performed among the plurality of pixels of the liquid crystal panel 11, a gain usage value to be used for the overdrive, based on a predetermined set gain value, and to apply, based on the gain usage value, a liquid-crystal driving voltage to the corresponding target pixel, wherein with respect to a pixel, among the target pixels, for which it is judged that a gradation value in a current frame obtained from the video signal is an intermediate gradation value, the overdrive execution section 50 performs a gain suppressing operation for determining the gain usage value as a value smaller than the set gain value.

Abstract: An image display device which includes a parallax adjustment unit, a display unit, a parallax detector, and a maximum parallax detector. The parallax adjustment unit is configured to obtain a right-eye image signal and a left-eye image signal. The parallax adjustment unit is configured to adjust a parallax between the right-eye image signal and left-eye image signal and output an adjusted image signal that includes an adjusted left-eye and adjusted right-eye signal. The parallax detector is configured to detect an amount of parallax between the right-eye and left-eye image signals. The maximum parallax detector is configured to detect a maximum value. The display unit is configured to display a right-eye image and a left-eye image and to display an augmented image including the right-eye image and the left-eye image as well as a monitor image indicating the amount of parallax detected and the maximum value.

Abstract: A transmissive screen includes, sequentially from a projection side, a Fresnel lens having a condensing function, a diffusion plate for diffusing incident light, and a front-surface protective panel disposed facing the diffusion plate across an air flow layer of a predetermined interval. The front-surface protective panel partially absorbs visible light, and the visible light absorbance of the front-surface protective panel is made the highest compared with the Fresnel lens and the diffusion plate.

Abstract: A projection image display device has a plurality of light sources, a phosphor layer that emits light through excitation by at least any one of the light sources, an optical section, a temperature detector, a light-source intensity controller, an amplitude controller, a luminance controller. The optical section determines an optical path of light emitted from the light sources and the phosphor layer. The temperature detector directly or indirectly detects temperature of the phosphor layer or of the periphery of the phosphor layer. The light-source intensity controller controls intensity of an excitation light source that excites the phosphor layer. The amplitude controller controls the amplitude of a projection image signal. The luminance controller controls luminance of projection images by switching the light-source intensity controller and the amplitude controller according to a detected temperature.

Abstract: An image display device includes a plurality solid-state light sources, a modulator configured to modulate light from a plurality of solid-state light sources, and an image display device configured to generate from a frame of image data, a plurality of subframes each further divided into subfields, and to display the plurality of subframes. The modulator turns off light output from all the solid-state light sources for the duration of one or more of the plurality of subframes, whereby it is possible to reduce motion blur arising from a hold-type display device, in which after-images remain on the retina of a person's eyes when viewing moving objects.

Abstract: A projector 1 detects a luminance distribution in an effective video period of an inputted video luminance signal, and a coefficient calculating circuit 302 calculates a correction coefficient Ci to correct a gradation (FIG. 6A). Then, surrounding brightness is detected, and the correction coefficient Ci is adjusted based on the surrounding brightness to obtain an adjusted correction coefficient Ci? (FIG. 6B). As shown in FIG. 6C, a luminance can be raised to Q according to a brightness signal even for a pixel of a lowest input luminance by adjusting the correction coefficient. Other correction coefficients in a range of 0 to 255 before adjustment are proportionally distributed to a range of 0 to 255-Q, and added with a correction coefficient Q. A luminance of each pixel which belongs to the effective video period of the video luminance signal is adjusted using the adjusted correction coefficient.

Abstract: Comprising a casing containing a heat insulating part, a projector as an image display unit, a screen for displaying an image issued from the projector, and cooling part (heat exchanger, compressor) for cooling the inside of the casing, the heat insulating part includes a first heat insulating part disposed in the peripheral area of the projector for insulating from heat, and a second heat insulating part disposed in the peripheral part of the screen for insulating from heat.

Abstract: The transmissive screen includes, sequentially from a projection side, a Fresnel lens having a condensing function, a diffusion plate for diffusing incident light, and a front-surface protective panel disposed facing the diffusion plate across an air flow layer of a predetermined interval. The front-surface protective panel partially absorbs visible light. The visible light absorbance of the front-surface protective panel is made the highest comparing with the Fresnel lens and the diffusion plate.

Abstract: An image display apparatus includes: an image display unit for forming an optical image; and an outer housing for housing the image display unit. The outer housing includes a window for displaying the optical image to the outside. The image display apparatus includes, in the outer housing, a heat insulator placed so as to surround the image display unit and a cooling device for cooling inside the outer housing, and the cooling device has a variable cooling capacity. The image display apparatus is abatable to changes in the ambient temperature and the internal power consumption and the presence or absence of sunlight and can be installed in a variety of outdoor environment, so that a high degree of reliability can be achieved.

Abstract: A projector 1 detects a luminance distribution in an effective video period of an inputted video luminance signal, and a coefficient calculating circuit 302 calculates a correction coefficient Ci to correct a gradation (FIG. 6A). Then, surrounding brightness is detected, and the correction coefficient Ci is adjusted based on the surrounding brightness to obtain an adjusted correction coefficient Ci? (FIG. 6B). As shown in FIG. 6C, a luminance can be raised to Q according to a brightness signal even for a pixel of a lowest input luminance by adjusting the correction coefficient. Other correction coefficients in a range of 0 to 255 before adjustment are proportionally distributed to a range of 0 to 255-Q, and added with a correction coefficient Q. A luminance of each pixel which belongs to the effective video period of the video luminance signal is adjusted using the adjusted correction coefficient.

Abstract: The present invention includes a film or video image pickup signal recording/reproduction system having an image pickup apparatus outputting an image pickup signal, a recording apparatus recording the image pickup signal, a reproduction apparatus reproducing the recorded signal, a characteristic conversion apparatus switching the characteristic of the reproduced signal, and a display apparatus displaying the signal output from the characteristic conversion apparatus. The image pickup apparatus has two kinds of gamma curve characteristics. The gamma curve characteristic data is recorded by the recording apparatus and extracted by the reproduction apparatus. The gamma curve characteristic of a reproduction image is switched by the characteristic conversion apparatus depending on the data. The image is output on a display apparatus.

Abstract: Correlation of videos between fields is determined between a difference between an input interlaced signal and a signal that is delayed by one field with respect to the input interlaced signal. Correlation among N-1 sequential fields is compared with a predetermined pattern to determine whether the input interlaced signal is unquestionably a telecine-converted signal, whether it is unquestionably not a telecine-converted signal, or whether it cannot be said to be unquestionably a telecine-converted signal. If a determination of being unquestionably a telecine-converted signal is continued for a predetermined number or more of fields, an instruction signal, which instructs to perform inter-field interpolation on the input interlaced signal, is outputted.

Abstract: A projector capable of performing color adjustment through a display mode which reduces the occurrence of color contrast phenomena. A main microcontroller (70), which determines a boundary position for dividing the display into a first area and a second area, and a switch control unit (56) switch the output of an output selector (55) according to pixel positions, so that image signals of a part of an image to be displayed in the first area are converted by a color conversion LUT (52) before being output, while image signals of a remaining part of the image to be displayed in the second area are directly output.

Abstract: Correlation of videos between fields is determined between a difference between an input interlaced signal and a signal that is delayed by one field with respect to the input interlaced signal. Correlation among N-1 sequential fields is compared with a predetermined pattern to determine whether the input interlaced signal is unquestionably a telecine-converted signal, whether it is unquestionably not a telecine-converted signal, or whether it cannot be said to be unquestionably a telecine-converted signal. If a determination of being unquestionably a telecine-converted signal is continued for a predetermined number or more of fields, an instruction signal, which instructs to perform inter-field interpolation on the input interlaced signal, is outputted.

Abstract: The present invention includes a film or video image pickup signal recording/reproduction system having an image pickup apparatus outputting an image pickup signal, a recording apparatus recording the image pickup signal, a reproduction apparatus reproducing the recorded signal, a characteristic conversion apparatus switching the characteristic of the reproduced signal, and a display apparatus displaying the signal output from the characteristic conversion apparatus. The image pickup apparatus has two kinds of gamma curve characteristics. The gamma curve characteristic data is recorded by the recording apparatus and extracted by the reproduction apparatus. The gamma curve characteristic of a reproduction image is switched by the characteristic conversion apparatus depending on the data. The image is output on a display apparatus.