摘要:
According to one embodiment, a video display apparatus includes a display module, a light source device, a video signal input module, a virtual illumination value calculator, a light source illumination value calculator, and a light source controller. The light source device is divided into light source areas in a honeycomb shape and provided with light sources to light up the light source areas. The virtual illumination value calculator calculates an area illumination value indicating the brightness of light source areas to light up based on a video signal received by the video signal input module. The light source illumination value calculator calculates a light source illumination value to light up the light sources based on the area illumination value. The light source controller lights up the light sources synchronously with the video signal being displayed on the display module based on the light source illumination value.
摘要:
According to one embodiment, a light-emission control device controls light emission of light sources of a light emitter including a plurality of light source areas each corresponding to one of the light sources, and includes a virtual light-value calculator, a light-value calculator, and a light controller. The virtual light-value calculator calculates a virtual light value for each virtual light source area including a light source area and a virtual area obtained by virtually dividing the light emitter into areas different in size from the light source areas. The light-value calculator calculates a light value of a light sources corresponding to the light source area based on the virtual light value. The light controller lights the light source based on the light value.
摘要:
According to one embodiment, a light-emission control device controls light emission of light sources of a light emitter including a plurality of light source areas each corresponding to one of the light sources, and includes a virtual light-value calculator, a light-value calculator, and a light controller. The virtual light-value calculator calculates a virtual light value for each virtual light source area including a light source area and a virtual area obtained by virtually dividing the light emitter into areas different in size from the light source areas. The light-value calculator calculates a light value of a light sources corresponding to the light source area based on the virtual light value. The light controller lights the light source based on the light value.
摘要:
A fiber laser device contains a first optical fiber of a double-clad type in which optical resonance of an infrared laser light takes place inside a core with Pr3+and Yb3+added thereto to generate a light of a wavelength of about 630 nm, a second optical fiber of a double-clad type in which optical resonance of an infrared laser light takes place inside a core with Pr3+and Yb3+added thereto to generate a light of a wavelength of about 690 nm, and a third optical fiber in which optical resonance of the lights from the first and second optical fibers takes place inside a core with Tm3+added thereto to generate a light of a wavelength of about 450 nm, and the core diameter of the third optical fiber is made substantially equal to the spot diameters of the lights from the first and second optical fibers.
摘要:
According to one embodiment, a light-emission control device controls light emission of light sources of a light emitter including a plurality of light source areas each corresponding to one of the light sources, and includes a light-value calculator, a light-value modifying module, and a light controller. The light-value calculator calculates a light value for each of the light source areas. The light source areas include a target area for which a light value is to be modified and surrounding areas surrounding the target area. The light-value modifying module modifies a light value calculated for the target area using light values for the surrounding areas. The light controller lights a light source in the target area based on the modified light value.
摘要:
According to one embodiment, a light-emission control device controls light emission of light sources of a light emitter including a plurality of light source areas each corresponding to one of the light sources, and includes a light-value calculator, a light-value modifying module, and a light controller. The light-value calculator calculates a light value for each of the light source areas. The light source areas include a target area for which a light value is to be modified and surrounding areas surrounding the target area. The light-value modifying module modifies a light value calculated for the target area using light values for the surrounding areas. The light controller lights a light source in the target area based on the modified light value.
摘要:
According to one embodiment, an image display device includes an image-signal input module, an image-quality corrector, a light emitter, and a liquid-crystal display module. The image-signal input module receives an image signal. The image-quality corrector performs, based on an image-quality correction amount, an image-quality correction process on the image signal. The light emitter includes a plurality of light sources for emitting light. The liquid-crystal display module modulates, among light emitted from the light sources, light transmitted through the liquid crystal to display an image according to the image signal subjected to the image-quality correction process. The light emitter emits the light according to the image signal with less image-quality correction amount than that of the image signal subjected to the image-quality correction process.
摘要:
According to one embodiment, a light emission controller has a light-value-change detector and a lighting controller. The lighting-value-change detector is configured to detect a change in a lighting value of a plurality of light sources. The lighting controller is configured to turn on the plurality of light sources at a plurality of lighting timings within a lighting period defined between an initial lighting timing and a final lighting timing of the plurality of lighting timings by pulse width modulation in accordance with the change in the lighting value, a number of the lighting timings in a later lighting period of the lighting period being greater than a number of the lighting timings in an earlier lighting period of the lighting period.
摘要:
According to one embodiment, a broadcast recording apparatus has a tuner unit which receives a broadcast signal, demodulates the received signal, and outputs video image and voice signals, first and second hard disk drive units which record the video image and voice signals from the tuner unit in a memory region, and a control unit which controls the first and second hard disk drive units to record the video image and voice signals in each one of a first storage memory region of the first hard disk drive unit and a second storage memory region of the second hard disk drive unit.
摘要:
An image display apparatus according to an embodiment includes: a light emission unit capable of illuminating light rays onto at least two divided areas; an image display capable of receiving light rays from the light emission unit and displaying an image signal which includes a plurality of elemental images having multiple parallax image components; a determination module configured to determine a representative pixel value from among the elemental images included in respective areas with respect to the respective areas; and a light intensity calculation module configured to calculate intensities of light rays illuminating respective areas on the basis of the determined representative pixel value.