A head-up display (HUD) including a direction-information generator, a shift device, and a display system. The direction-information generator generates direction information to be superimposed on a road surface ahead of a vehicle on which the HUD is mounted. The direction information represents a direction of travel to be followed by the vehicle. The shift device shifts at least some of the direction-change information into the display area when the direction information includes direction-change information to represent a change in the direction of travel and the direction-change information falls outside a display area. The display system displays the direction information within the display area as a virtual image.

A HUD 10 is configured to be able to display a plurality of virtual images at different distances. The HUD 10 includes an image generation unit 12 and a shielding member 14. The image generation unit 12 generates a first image for forming a first virtual image and a second image for forming a second virtual image to be displayed nearer than the first virtual image. The shielding member 14 can reduce an amount of external light incident on the image generation unit 12. The shielding member 14 is movable between a position through which first light constituting the first image emitted from the image generation unit 12 passes and a position through which the first light does not pass.

A HUD 10 is configured to be able to display a plurality of virtual images at different distances. The HUD 10 includes an image generation unit 12 and a shielding member 14. The image generation unit 12 generates a first image for forming a first virtual image and a second image for forming a second virtual image to be displayed nearer than the first virtual image. The shielding member 14 can reduce an amount of external light incident on the image generation unit 12. The shielding member 14 is movable between a position through which first light constituting the first image emitted from the image generation unit 12 passes and a position through which the first light does not pass.

A method is provided for visualizing optical information in the central field of vision of a driver in such a way that a display (5) in the form of a virtual image is superimposed on a real traffic environment. A position of the display (5) is dynamically variable as a function of a vehicle speed, a steering angle, and a road type. Thus a horizontal and/or vertical spread of a display range (8) between a first maximum value (9) and a second maximum value (10) within which the display (5) can be displayed is varied as a function of speed, steering angle and roadway type.

A vehicle control device includes a traveling environment detection unit and an ECU as a controller. The ECU acquires traveling environment information indicating a traveling environment detected by the traveling environment detection unit. The ECU determines whether a vehicle is in an off-road traveling state where the vehicle travels on a bad road, based on the traveling environment information. When the vehicle is in the off-road traveling state, the ECU determines a traveling assist function that is capable of being applied when the vehicle travels on the bad road. Furthermore, the ECU alters a display manner such that the number of times of operation that is necessary to select the determined traveling assist function is smaller than when the vehicle is not in the off-road traveling state.

A vehicle control device includes a traveling environment detection unit and an ECU as a controller. The ECU acquires traveling environment information indicating a traveling environment detected by the traveling environment detection unit. The ECU determines whether a vehicle is in an off-road traveling state where the vehicle travels on a bad road, based on the traveling environment information. When the vehicle is in the off-road traveling state, the ECU determines a traveling assist function that is capable of being applied when the vehicle travels on the bad road. Furthermore, the ECU alters a display manner such that the number of times of operation that is necessary to select the determined traveling assist function is smaller than when the vehicle is not in the off-road traveling state.

The present invention provides a display in which it is easy to ascertain a planned travel path. This display control device displays, in a first display region, a real-view-following navigation image that follows a specific superimposition target in a real view so as to maintain the positional relation with the specific superimposition target. When it is inferred that visibility in a forward view from a vehicle will be impaired, the display control device displays, in a second display region that has a vertical center which is disposed lower than the vertical center of the first display region, a bird's-eye-view navigation image which includes, in a diagonal view from above, at least a map image that is of the surrounding area of the vehicle and a path image that overlaps with the map image and that indicates a planned travel path.

The present invention provides a display in which it is easy to ascertain a planned travel path. This display control device displays, in a first display region, a real-view-following navigation image that follows a specific superimposition target in a real view so as to maintain the positional relation with the specific superimposition target. When it is inferred that visibility in a forward view from a vehicle will be impaired, the display control device displays, in a second display region that has a vertical center which is disposed lower than the vertical center of the first display region, a bird's-eye-view navigation image which includes, in a diagonal view from above, at least a map image that is of the surrounding area of the vehicle and a path image that overlaps with the map image and that indicates a planned travel path.

A display control device includes: a vehicle vibration information acquisition portion; a vehicle state determination portion; a bias error correction value acquisition portion acquiring, during a stopped period of the vehicle, a bias error correction value correcting a bias error; a bias error correction portion; a vehicle posture variation amount detection portion; and a display correction portion changing one of a position and a size of an image. The bias error correction portion performs one of: first correction processing which gradually changes a previous bias error correction value with passage of time, and shifts the previous bias error correction value to an updated bias error correction value through a period of the change; and second correction processing which does not shift the previous bias error correction value to the updated bias error correction value in the stopped period but performs the shifting operation in a traveling period.

A display control device includes: a vehicle vibration information acquisition portion; a vehicle state determination portion; a bias error correction value acquisition portion acquiring, during a stopped period of the vehicle, a bias error correction value correcting a bias error; a bias error correction portion; a vehicle posture variation amount detection portion; and a display correction portion changing one of a position and a size of an image. The bias error correction portion performs one of: first correction processing which gradually changes a previous bias error correction value with passage of time, and shifts the previous bias error correction value to an updated bias error correction value through a period of the change; and second correction processing which does not shift the previous bias error correction value to the updated bias error correction value in the stopped period but performs the shifting operation in a traveling period.