Abstract: A display apparatus for vehicle includes: an image projector configured to project a light flux including an image having a display object toward a one eye of an image viewer; and a position detector configured to detect the one eye of the image viewer. The image projector changes at least one of a position, a shape and a size of the display object in the image on the basis of a position of the one eye detected by the position detector.

Abstract: According to one embodiment, a display device includes an image projection unit. The image projection unit is configured to project a light flux toward one eye of a human viewer by using a projection plate to reflect the light flux. The light flux includes an image including a display object having a vanishing point. The projection plate is reflective and transmissive. The image projection unit is configured to dispose the vanishing point of the display object at a position different from a position of a vanishing point of a background image viewed by the human viewer through the projection plate.

Abstract: According to one embodiment, a display device, includes an image projection unit and an optical unit. The image projection unit includes a laser beam source configured to emit a laser beam including image information, and a scanning unit configured to scan the laser beam. The optical unit includes a reflecting unit. The reflecting unit includes a plurality of half mirrors stacked with each other. The scanned laser beam is sequentially incident on the plurality of half mirrors. Respective reflected laser beams produced by being reflected by each of the half mirrors pass through a plurality of mutually-different points.

Abstract: According to one embodiment, a display device includes an imaging unit, an information acquisition unit, a display unit, and a first transmittance control unit. The imaging unit images a first image and generates imaging data. The information acquisition unit acquires first information derived from the imaging data and relating to a second image. The display unit includes an image light emission unit and a semi-transmissive reflection plate. The image light emission unit emits image light. The semi-transmissive reflection plate causes the image light to be incident on one eye and causes background light of the first image to be incident on the one eye. The semi-transmissive reflection plate is disposed between the first transmittance control unit having first and second regions and the one eye. The first transmittance control unit causes a transmittance of the first region to be lower than a transmittance of the second region.

Abstract: According to one embodiment, an optical element includes a first optical sheet having a first major surface. The first optical sheet includes a first Fresnel lens provided in the first major surface. An optical axis of the first Fresnel lens at the first major surface is disposed at a position different from a position of a center of an outline of the first major surface.

Abstract: According to one embodiment, an image projection apparatus includes a generation unit, a measurement unit, a change unit, and a projection unit. The generation unit is configured to generate an image to be superimposed on a scene viewed by an observer. The measurement unit is configured to measure a vibration occurred while the observer is moving. The change unit is configured to, when a cycle of the vibration satisfies a predetermined condition, change a figure of the image in a predetermined time so as to lower a visibility of the image. The projection unit is configured to project the image toward eyes of the observer.

Abstract: According to an embodiment, a display apparatus includes an information acquisition unit, a control unit, and a display unit. The information acquisition unit is configured to acquire information relating to an energy efficiency of a moving body. The control unit is configured to generate image data to include a display object indicating the energy efficiency based on the information. The display unit is configured to present the image including the display object to a human viewer operating the moving body. The control unit is configured to generate the image data to include a first display object when the energy efficiency is in a first state and generate the image data to include a second display object when the energy efficiency is in a second state lower than the first state.

Abstract: One embodiment provides a display device, including: a luminous flux generator which generates luminous flux including image information; a reflector plate which reflects the luminous flux generated by the luminous flux generator toward one eye of a viewer; a head detector which detects a head of the viewer by using at least two pairs of distance sensors; a controller which controls a position of the reflector plate based on an output from the head detector; and a driver which drives the reflector plate based on an output from the controller.

Abstract: According to one embodiment, a display device includes an image projection unit, a diffusion element, a concave mirror element of a Fresnel type, an optical unit, and a mounting unit. The image projection unit emits an image light including an image. The diffusion element is diffusible to a light. The optical unit includes first and second optical layers, and an intermediate layer. The first optical layer has first and second major surfaces. The second major surface has a protrusion and convexities. The second optical layer has third and fourth major surfaces. The third major surface has a recess and concavities. The intermediate layer is provided between the second and third major surfaces. The mounting unit holds the image projection unit, the diffusion element, the concave mirror element, and the optical unit and determines a relative positional relationship between the optical unit and an eye of a viewer.

Abstract: According to one embodiment, a display apparatus includes an image projection unit, an information acquisition unit and a data supply unit. The image projection unit projects a light flux including an image toward a projection layer which is reflective and transmissive. The information acquisition unit acquires information relating to a position of a three-dimensional object superimposing portion of three-dimensional objects positioned at a road. The road extends from a proximal region of the external environment proximal to the projection layer toward a distal region of the external environment distal to the projection layer. The three-dimensional object superimposing portion is higher than a ground surface and viewable via the projection layer. The data supply unit supplies data relating to the image including a display object to the image projection unit based on the information. The display object is displayed along the three-dimensional object superimposing portion.

Abstract: A motion vector detection method includes extracting a first block including a plurality of pixels from a first frame of the image, detecting a second block from a plurality of blocks of a second frame of the image by block matching, the second block including the maximum number of pixels each indicating an absolute difference value not more than a first threshold with respect to each of the pixels of the first block, and computing a first motion vector between the first block and the second block.

Abstract: An image display apparatus includes: an image generation unit generating a plurality of images with different figure sizes so that perceived positions of the plurality of images are sequentially located in a direction away from an actual position; a reflection member provided in front of the observer; and a projector projecting a light beam to form, the plurality of images onto a single eye of the observer through the reflection member so that the plurality of images is superimposed on a background observed through the refection member.

Abstract: According to one embodiment, a display device includes an image projection unit, an optical unit and a mounting unit. The image projection unit emits an image light. The optical unit includes a first optical layer having first and second major surfaces, a second optical layer having third and fourth major surfaces and an intermediate layer provided between the second and third major surfaces. At least a portion of the image light travelling from the first major surface toward the second major surface is reflected by the intermediate layer. At least a portion of a background light travelling from the fourth major surface toward the third major surface is transmitted by the intermediate layer. The first major surface or the fourth major surface is a curved surface. The mounting unit is linked to the image projection unit and the optical unit.

Abstract: According to an embodiment, a display apparatus includes an information acquisition unit, a control unit, and a display unit. The information acquisition unit is configured to acquire information relating to an energy efficiency of a moving body. The control unit is configured to generate image data to include a display object indicating the energy efficiency based on the information. The display unit is configured to present the image including the display object to a human viewer operating the moving body. The control unit is configured to generate the image data to include a first display object when the energy efficiency is in a first state and generate the image data to include a second display object when the energy efficiency is in a second state lower than the first state.

Abstract: According to one embodiment, a display apparatus includes an image data generation unit configured to generate image data and an image projection unit configured to project a light flux including an image toward a human riding in a vehicle. The image is based on the image data. The image data generation unit is configured to generate the image data relating to the image including a first display object indicating a travel direction of the vehicle at a travel direction change point when a distance between the travel direction change point and the vehicle is a first distance. The image data generation unit is configured to generate the image data relating to the image including a second display object displayed to correspond to a position of the travel direction change point when the distance is a second distance shorter than the first distance.

Abstract: According to one embodiment, a monocular head mounted display comprising an information acquisition section, an image data generation section, and an image display section. The information acquisition section acquires solid body position information on a position of a solid body located on ground around a user, and indication position information on an indication position for the user. The image data generation section generates image data including an information object to provide provision information to the user. The image display section displays an image based on the image data on one eye of the user in superimposition on a real scene. The image data generation section generates the image data so as to move the information object in the image so that the information object is superimposed on the indication position after placing the information object in the image so that the information object is superimposed on the solid body.

Abstract: A display device is provided that includes: a projection unit emitting a light flux including image information; and a divergence angle controlling unit controlling a divergence angle of the light flux emitted from the projection unit to not more than a prescribed angle. The divergence angle controlling unit includes a transmission unit transmitting the light flux emitted from the projection unit and a light shielding unit shielding part of the light flux, and the part of the light flux is shielded by the light shielding unit so that the divergence angle of the light flux is controlled to not more than a prescribed angle.

Abstract: One embodiment provides a display device, including: a luminous flux generator which generates luminous flux including image information; a reflector plate which reflects the luminous flux generated by the luminous flux generator toward one eye of a viewer; a head detector which detects a head of the viewer by using at least two pairs of distance sensors; a controller which controls a position of the reflector plate based on an output from the head detector; and a driver which drives the reflector plate based on an output from the controller.

Abstract: According to one embodiment, a display device includes an image projection unit. The image projection unit is configured to project a light flux toward one eye of a human viewer by using a projection plate to reflect the light flux. The light flux includes an image including a display object having a vanishing point. The projection plate is reflective and transmissive. The image projection unit is configured to dispose the vanishing point of the display object at a position different from a position of a vanishing point of a background image viewed by the human viewer through the projection plate.

Abstract: An automotive display system includes an image projection unit and an angle information acquisition unit. The image projection unit projects a light flux including an image including a display object toward one eye of an image viewer. The angle information acquisition unit acquires at least one of vehicle angle information and external environment angle information. The vehicle angle information relates to an angle of at least one of an attitude and a heading of a vehicle carrying the image viewer. The external environment angle information relates to an angle of a background object at a target position of the display object in a background of an external environment of the vehicle. The image projection unit changes an angle of the display object in the image based on at least one of the vehicle angle information and the external environment angle information acquired by the angle information acquisition unit.