Abstract: An object is to provide a technology that enables easy access from both the display surface side and the rear surface side of a video display apparatus, and also enables improvement in the video quality. Each of LED display tiles moves in the lateral direction by the rotational operation of a lateral position adjustment knob. Each of the LED display tiles moves in the vertical direction by the rotational operation of a vertical position adjustment knob. In a state where a positioning pin is inserted in a hole portion, a surface of the level difference adjustment member on the side of the positioning pin is stuck to a contact portion by the magnetic force of a magnet, whereby each of the LED display tiles is fixed to a support structure.

Abstract: An object is to provide a technique that enables making an adjustment from a direction where a video display surface is located, in order to provide inconspicuous seams between one of video display devices and other adjacent video display devices even when there are no workable spaces behind the video display devices. A multi-display system includes a plurality of LED display tiles, a position adjusting mechanism, and a pull-out mechanism. The position adjusting mechanism includes a lock mechanism that switches between a locking state and an unlocking state. When the lock mechanism is in the locking state, each of the LED display tiles is fastened in a retraction position. When the lock mechanism is in the unlocking state, each of the LED display tiles is movable between the retraction position and a pull-out position by the pull-out mechanism while being floated and supported via an elastic support portion.

Abstract: An object is to provide a technique that enables making an adjustment from a direction where a video display surface is located, in order to provide inconspicuous seams between one of video display devices and other adjacent video display devices even when there are no workable spaces behind the video display devices. A multi-display system includes a plurality of LED display tiles, a position adjusting mechanism, and a pull-out mechanism. The position adjusting mechanism includes a lock mechanism that switches between a locking state and an unlocking state. When the lock mechanism is in the locking state, each of the LED display tiles is fastened in a retraction position. When the lock mechanism is in the unlocking state, each of the LED display tiles is movable between the retraction position and a pull-out position by the pull-out mechanism while being floated and supported via an elastic support portion.

Abstract: It is an object of the present invention to provide an LED panel and an LED display that enhance orientation properties of LEDs and the efficiency of light use with a simple configuration. It is a different object of the present invention to provide a method for manufacturing the LED display panel, the method reducing an increase in process step. An LED display panel according to an aspect of the present invention includes the following: a plurality of chip-on-board LEDs mounted on a substrate, the LEDs each having a light-emitting surface on a surface opposite a substrate side; and a plurality of light-transmissive members. Each light-transmissive member is disposed on the substrate to cover the light-emitting surface of at least one of the LEDs. Each light-transmissive member is configured to enhance the directionality of outgoing light emitted from the LEDs.

Abstract: It is an object of the present invention to provide an LED panel and an LED display that enhance orientation properties of LEDs and the efficiency of light use with a simple configuration. It is a different object of the present invention to provide a method for manufacturing the LED display panel, the method reducing an increase in process step. An LED display panel according to an aspect of the present invention includes the following: a plurality of chip-on-board LEDs mounted on a substrate, the LEDs each having a light-emitting surface on a surface opposite a substrate side; and a plurality of light-transmissive members. Each light-transmissive member is disposed on the substrate to cover the light-emitting surface of at least one of the LEDs. Each light-transmissive member is configured to enhance the directionality of outgoing light emitted from the LEDs.

Abstract: A screen is provided with microcapsules and a base material. The microcapsules each contain encapsulated liquid inside a capsule membrane. The microcapsules are planarly arranged on the base material. The encapsulated liquid includes light diffusion particles for scattering light, and a dispersion medium for dispersing the light diffusion particles. In a cross sectional area of the microcapsule projected in the direction perpendicular to the surface of the base material on which the microcapsules are planarly arranged, the ratio of the area of the encapsulated region to the area of the microcapsule ranges from 0.9025 to 0.990.

Abstract: A device for predicting energy consumption includes an obtaining unit (110), an air resistance calculating unit (140, 150), and an energy consumption predicting unit (150). The obtaining unit (110) is configured to obtain road information including traveling speed information set for each route. The air resistance calculating unit (140, 150) is configured to calculate air resistance as a calculated air resistance value by an air resistance calculation formula on the basis of the traveling speed information of the scheduled traveling route and to correct the calculated air resistance value so that the air resistance is higher according as the traveling speed along the scheduled traveling route is lower. The air resistance is caused when a vehicle travels along a scheduled traveling route. The energy consumption predicting unit (150) is configured to predict an energy consumption of the scheduled traveling route on the basis of the corrected air resistance value.

Abstract: A device for predicting energy consumption includes an obtaining unit (110), an air resistance calculating unit (140, 150), and an energy consumption predicting unit (150). The obtaining unit (110) is configured to obtain road information including traveling speed information set for each route. The air resistance calculating unit (140, 150) is configured to calculate air resistance as a calculated air resistance value by an air resistance calculation formula on the basis of the traveling speed information of the scheduled traveling route and to correct the calculated air resistance value so that the air resistance is higher according as the traveling speed along the scheduled traveling route is lower. The air resistance is caused when a vehicle travels along a scheduled traveling route. The energy consumption predicting unit (150) is configured to predict an energy consumption of the scheduled traveling route on the basis of the corrected air resistance value.

Abstract: A screen is provided with microcapsules and a base material. The microcapsules each contain encapsulated liquid inside a capsule membrane. The microcapsules are planarly arranged on the base material. The encapsulated liquid includes light diffusion particles for scattering light, and a dispersion medium for dispersing the light diffusion particles. In a cross sectional area of the microcapsule projected in the direction perpendicular to the surface of the base material on which the microcapsules are planarly arranged, the ratio of the area of the encapsulated region to the area of the microcapsule ranges from 0.9025 to 0.990.

Abstract: A screen includes a light diffusion layer in which microcapsules, each having therein a light diffusion liquid that scatters light for displaying a video image, are planarly arranged. The light diffusion layer is fixed to a supporting sheet by a binder material. On a surface of the supporting sheet, a Fresnel lens is formed. A light diffusion plate is made up of the light diffusion layer and the supporting sheet. The screen is made up of the light diffusion plate and a light diffusion plate. Scattering distribution of a scattered wave of light that passes through the light diffusion layer temporally changes.

Abstract: A vehicle includes a fuel tank, a fuel amount detecting device and a control device. The fuel amount detecting device is configured to detect an amount of fuel inside the fuel tank. The control device is configured to calculate an estimated refueling amount that diminishes fuel inside the fuel tank from degrading based on a usage history of the vehicle. The control device is further configured such that the control device stops refueling based on an amount of fuel detected by the fuel amount detecting device and the estimated refueling amount.

Abstract: A transmitted light selecting device includes a first light selecting unit having a polarizing filter for allowing an image light ray having one polarization direction to pass therethrough; a phase difference film for providing phase differences to the light ray passing through the polarizing filter to emit light, in which light rays having polarization directions coexist, toward a viewer; a second light selecting unit having a polarizing filter having a polarized light transmission axis perpendicular to that of the polarizing filter; and a phase difference film for providing phase differences to a light ray passing through the polarizing filter to emit light, in which light rays having polarization directions coexist, toward the viewer.

Abstract: The transmission type screen includes: a Fresnel lens screen (20); and an image display element (30), in which the Fresnel lens screen includes: a Fresnel optical element (21) including a prism formed on an incident surface side as seen from the emitter; and a first light diffusion unit (22) for diffusing an image light passing through the Fresnel optical element, and the image display element includes: a lens element (40) for spatially dividing the image light from the Fresnel lens screen and changing a direction of the image light; a birefringent layer (90) provided at a subsequent stage of the lens element, for mixing image light obtained by spatial division; and a second light diffusion unit (60) provided at a subsequent stage of the birefringent layer, for diffusing the image light passing through the birefringent layer.

Abstract: A vehicle includes a fuel tank, a fuel amount detecting device and a control device. The fuel amount detecting device is configured to detect an amount of fuel inside the fuel tank. The control device is configured to calculate an estimated refueling amount that diminishes fuel inside the fuel tank from degrading based on a usage history of the vehicle. The control device is further configured such that the control device stops refueling based on an amount of fuel detected by the fuel amount detecting device and the estimated refueling amount.

Abstract: An image formed on a reflecting optical modulator is magnified by a projection optical system and projected on a backside of a transmission-type screen. The projection optical system is constituted so that a product of an F-number and a projection magnification of the projection optical system is less than 400.

Abstract: A transmission-type screen includes an entering-side Fresnel lens that inflects image light from a light emitter toward a display side using a prism formed on a rear-surface side, which is a light-entering-surface side of the image light; a first light diffusing unit that is provided on the display side with respect to the entering-side Fresnel lens and diffuses the image light from the entering-side Fresnel lens; a second light diffusing unit provided on the display side with respect to the first light diffusing unit, diffuses the image light from the first light diffusing unit, causes the diffused image light to exit toward the display side, and configured to change a relative position thereof to the first light diffusing unit; and a second substrate that holds the second light diffusing unit while being provided on the display side with respect to the second light diffusing unit.

Abstract: A screen includes a light diffusion layer in which microcapsules, each having therein a light diffusion liquid that scatters light for displaying a video image, are planarly arranged. The light diffusion layer is fixed to a supporting sheet by a binder material. On a surface of the supporting sheet, a Fresnel lens is formed. A light diffusion plate is made up of the light diffusion layer and the supporting sheet. The screen is made up of the light diffusion plate and a light diffusion plate. Scattering distribution of a scattered wave of light that passes through the light diffusion layer temporally changes.

Abstract: A transmitted light selecting device includes a first light selecting unit (2a) having a polarizing filter (4a) for allowing an image light ray having one polarization direction to pass therethrough, and a phase difference film (5A) for providing phase differences to the light ray passing through the polarizing filter (4a) to emit light in which light rays having polarization directions coexist toward a viewer, and a second light selecting unit (2b) having a polarizing filter (4b) having a polarized light transmission axis perpendicular to that of the polarizing filter (4a), and a phase difference film (5B) for providing phase differences to a light ray passing through the polarizing filter (5b) to emit light in which light rays having polarization directions coexist toward the viewer.

Abstract: The transmission type screen includes: a Fresnel lens screen (20); and an image display element (30), in which the Fresnel lens screen includes: a Fresnel optical element (21) including a prism formed on an incident surface side as seen from the emitter; and a first light diffusion unit (22) for diffusing an image light passing through the Fresnel optical element, and the image display element includes: a lens element (40) for spatially dividing the image light from the Fresnel lens screen and changing a direction of the image light; a birefringent layer (90) provided at a subsequent stage of the lens element, for mixing image light obtained by spatial division; and a second light diffusion unit (60) provided at a subsequent stage of the birefringent layer, for diffusing the image light passing through the birefringent layer.

Abstract: Not only abnormality of a light output to an exterior but also overturning, vibration, disassembly, deformation, or breakage of a display apparatus including a case and a screen are reliably and promptly detected. A projection display apparatus includes a light source (22) for generating illumination light, which is provided in a case (28) having a light-shielding function, a movable aperture (23) for adjusting the amount of illumination light from the light source (22), a light valve (9) for adjusting the amount of light based on an image signal to generate image light for forming an image from the illumination light, a projection optical system (10) for enlarging the image light from the light valve (9), and a transmission-type screen (29) for displaying the image, which is provided to a window of the case (28).