Abstract: A projection display device includes an image data control unit that controls image data to be input to a light modulation unit, and a situation determination unit that determines, in a state where an automated driving mode is set, whether or not a situation has occurred where an operation device mounted in a vehicle and used for driving needs to be operated. When it is determined that the situation has occurred where the operation device needs to be operated, the image data control unit inputs, to a driving unit, first image data for displaying images corresponding to a plurality of operation devices in a positional relationship corresponding to an arrangement of the plurality of operation devices and displaying, in an emphasized manner, the image corresponding to the operation device that needs to be operated, and displays an operation assisting image that is based on the first image data.

Abstract: An HUD includes a projection unit that projects image light that is spatially modulated on the basis of image data onto a windshield, a sight line detection unit that detects a line of sight of a driver of a vehicle, and a system controller that acquires measurement data on shape of a region including a point that intersects the line of sight of the driver in a projectable range of the image light in the windshield, generates correction data for correcting distortion of an image based on the image light projected onto the region on the basis of the acquired measurement data and the direction of the line of sight of the driver, and corrects the image data using the generated correction data.

Abstract: A HUD including a projection display unit, a housing, a cover, a region detection unit, an object removing mechanism and an object removal control unit is provided. The projection display unit spatially modulates light emitted from a light source as image information and projects image light obtained from spatial modulation onto a windshield to display an image. The housing accommodates the projection display unit and has an opening portion through which the image light exits. The cover covers the opening portion. The region detecting unit detects an object adhesion region in which the object is adhered to the cover. The object removing mechanism removes an object adhered to a front surface of the cover by scraping the front surface of the cover. The object removal control unit activates the object removing mechanism when important display content is included in a portion of the image light, the portion being blocked.

Abstract: A projection display device includes: a light modulation unit that spatially modulates, in accordance with image data that is input, light emitted by a light source; a housing that accommodates the light modulation unit; a projection optical system that is accommodated in the housing and projects the light that has been spatially modulated onto a projection surface of a vehicle through an opening portion of the housing; and a cover that closes the opening portion, the cover has a shape whose longitudinal direction is a direction extending from a driver's seat of the vehicle toward a passenger seat of the vehicle, and a front surface of the cover is closer to the projection surface than a reference plane and has a shape as defined herein.

Abstract: A HUD including a projection display unit, a housing, a cover, a region detecting unit, and a display control unit is provided. The projection display unit includes a light modulating unit spatially modulating light emitted from a light source based on input image information and projects modulated image light onto a windshield of an automobile to display an image. The housing accommodates the projection display unit and has an opening portion through which the modulated image light exits. The cover covers the opening portion. The region detecting unit detects an object adhesion region in which an object is adhered to the cover. The display control unit controls the image information to be input to the light modulating unit to control the image to be displayed by the projection display unit. The display control unit causes the projection display unit to display an outline of the object adhesion region.

Abstract: The projection display device includes a captured image data acquisition unit 61 that acquires captured image data obtained through image capturing performed by an imaging unit that captures an image of a region around a vehicle; a contour image data generation unit 62 that generates, in accordance with the captured image data, contour image data representing contours in a captured image that is based on the captured image data; and a projection display unit that performs, in accordance with image data including the contour image data, spatial modulation on light emitted by a light source (41r, 41g, 41b), and projects image light obtained through the spatial modulation onto a front windshield 1 in the vehicle.

Abstract: The projection type display device includes a projection display unit that includes light sources, a light modulation element that spatially modulates light emitted from the light sources, and a projection unit that projects light spatially modulated by the light modulation element onto a projection surface; a sight line detection unit that detects a line of sight; and a system controller that stops projection of the projection light onto the projection surface by the projection display unit in a state where the line of sight detected by the sight line detection unit is out of the projection surface and restarts the projection of the projection light onto the projection surface by the projection display unit after a first time elapses after a timing of moment when the line of sight is determined to move from an outside of the projection surface to an inside of the projection surface.

Abstract: Provided is a projection type display device capable of performing display of information according to a driver's desire. An HUD includes light sources; a light modulation element that spatially modulates light emitted from the light sources on the basis of projection image data; a projection unit that projects image light that is spatially modulated by the light modulation element onto a projection surface that is a part of a windshield 1 mounted in an automobile; a designation information acquisition unit that acquires designation information for designating at least one of a maximum number of pieces of content included in the projection image data, display sizes of the pieces of content, or arrangement layouts of the pieces of content on the basis of information input through an operation unit; and an image information generation unit that generates the projection image data on the basis of the designation information acquired.

Abstract: Provided are a projection type display device, a projection control method, and a non-transitory recording medium readable by a computer for recording a projection control program capable of smoothly changing shapes of projection ranges of image light. A projection type display device 1 includes: projection units 11 and 12 that project image light to a projection surface 4; a drive mechanism 13 for controlling a position, on the projection surface, of a projection range of the image light projected by the projection unit 12; and a controller 60 that controls the drive mechanism 13 and changes a length, in one direction, of a range obtained by combining projection ranges of the image light projected by the respective projection units 11 and 12 and a length, in a direction orthogonal to the one direction, of the range, respectively.

Abstract: The projection type display device includes a projection display unit that includes light sources, a light modulation element, and a projection unit that projects light onto a projection surface mounted in a vehicle as projection light; a sight line detection unit that detects a line of sight of a driver of the vehicle; and a system controller that performs a control so that a projection condition in a state where the line of sight detected by the sight line detection unit is out of the projection surface becomes a first condition and changes the projection condition when it is determined that the line of sight moves from the outside of the projection surface to the inside of the projection surface into a second condition that visibility of an image based on the projection light is higher than that in the first condition.

Abstract: Provided are a projection type display device and a projection control method capable of presenting suitable information to an operator both during traveling on a public road and during operation at a working site to perform assistance for the operator. A projection type display device that is mounted in a construction machine 100 having a windshield 5 performs a control so that image light is projected onto each of a first projection range 5A, a second projection range 5B, and a third projection range 5C of the windshield 5 in a case where it is determined that the location of the construction machine 100 is a working site, and performs a control so that image light is projected onto only the third projection range 5C of the windshield 5 in a case where it is determined that the location of the construction machine 100 is a public road.

Abstract: An HUD to be built in a construction machine includes an overlapping area detecting unit that detects a first overlapping area of a projection area and a bucket observed from a driver's seat; and a display control unit. In a state where a distance between a second overlapping area and the first overlapping area exceeds a threshold, the second overlapping area being an overlapping area of the projection area and a structure observed from the driver's seat, the display control unit performs tracking control in which a projection display unit is caused to display a virtual image based on operation support information while retaining a predetermined positional relationship with the first overlapping area. In a state where the distance is less than or equal to the threshold, the display control unit selects and performs either first control or the tracking control.

Abstract: An HUD includes a detection unit, a projection display unit, and a display control unit. The detection unit detects a position of a construction machine and a direction of a driver's cabin. The projection display unit projects image light onto a projection area of a front windshield of the driver's cabin to display a virtual image. The display control unit controls the image information and controls the virtual image that is to be displayed by the projection display unit. The display control unit causes the projection display unit to display a bucket virtual image that represents a bucket on the basis of operation plan information and the position and the direction of the construction machine detected by the detection unit, the operation plan information specifying the position of the construction machine, the direction of the driver's cabin, and a posture of the bucket that are stored in a storage unit.

Abstract: Provided are a projection type display device and a projection control method capable of accurately performing information presentation to an operator of a vehicle even in an image light shielded state where image light to be projected onto a projection surface is shielded by an object. An HUD 10 that is mounted in a construction machine 100 having a windshield 5 notifies, in a case where it is detected that image light to be projected onto the windshield 5 is in an image light shielded state where at least a part of the image light is shielded by an object, such as part of the body of an operator of a vehicle, the presence of the state.

Abstract: An HUD includes: a projection display unit that includes a light modulating unit spatially modulating light emitted from a light source on the basis of input image information and projects image light obtained as a result of spatial modulation onto a windshield of a automobile to display an image based on the image light; a housing that accommodates the projection display unit and has an opening portion K through which the image light exits; a cover that covers the opening portion K; a region detecting unit that detects an object adhesion region in which an object is adhered to the cover; and a display control unit that controls the image information to be input to the light modulating unit to control the image to be displayed by the projection display unit. The display control unit causes the projection display unit to display an outline of the object adhesion region.

Abstract: An HUD includes: a projection display unit that spatially modulates light emitted from a light source on the basis of image information and projects image light obtained as a result of spatial modulation onto a windshield to display an image; a housing that accommodates the projection display unit and has an opening portion K through which the image light exits; an object removing mechanism that removes an object adhered to a front surface of a cover covering the opening portion by scraping the front surface of the cover; a region detecting unit that detects an object adhesion region in which the object is adhered to the cover; and an object removal control unit that activates the object removing mechanism in a case where important display content is included in a portion of the image light, the portion being blocked due to the object adhesion region.

Abstract: A projection display device and a light source control method thereof capable of improving visibility of specific information without increasing a manufacturing cost and a power consumption amount are provided. An HUD includes a plurality of light sources that emit light beams with different colors, a projection unit that projects light according to image information among the light beams emitted from the plurality of light sources onto a combiner, and a light source control unit that sequentially emits lights from the plurality of respective light sources according to a predetermined light emission amount pattern. The light source control unit performs control for causing at least one of the light sources other than a specific light source among the plurality of light sources to emit light with a smaller light emission amount than a light emission amount of the specific light.

Abstract: A projection display device includes: a light modulation unit that spatially modulates, in accordance with image data that is input, light emitted by a light source; a housing that accommodates the light modulation unit; a projection optical system that is accommodated in the housing and projects the light that has been spatially modulated onto a projection surface of a vehicle through an opening portion of the housing; and a cover that closes the opening portion, the cover has a shape whose longitudinal direction is a direction extending from a driver's seat of the vehicle toward a passenger seat of the vehicle, and a front surface of the cover is closer to the projection surface than a reference plane and has a shape as defined herein.

Abstract: Provided are a projection type display device and an operation assistance method that enable an operator to enjoy an operation assistance function even in the case of occurrence of abnormality in an optical modulation unit or an image information input unit during operation of a vehicle. A system control unit 47 of a HUD, if sensing abnormality in an optical modulation device 44 and a drive unit 45, stops a light source unit 40 and, furthermore, in the case of image information generated by a projected image information generation unit 52 including image information that calls attention of the operator to the front field of view, displays an alert image based on the image information on a liquid crystal display device 61 in a meter cluster.

Abstract: A projection display device includes an image data control unit that controls image data to be input to a light modulation unit, and a situation determination unit that determines, in a state where an automated driving mode is set, whether or not a situation has occurred where an operation device mounted in a vehicle and used for driving needs to be operated. When it is determined that the situation has occurred where the operation device needs to be operated, the image data control unit inputs, to a driving unit, first image data for displaying images corresponding to a plurality of operation devices in a positional relationship corresponding to an arrangement of the plurality of operation devices and displaying, in an emphasized manner, the image corresponding to the operation device that needs to be operated, and displays an operation assisting image that is based on the first image data.