Vehicle display device that performs blur processing or widening processing on a display image

1. A vehicle display device comprising:

an image display unit that emits display light of an image;

a mirror that is spaced away from the image display unit and is configured to project the display light emitted from the image display unit toward a reflection face of a windshield in front of a driver; and

a controller that controls the image display unit, wherein

the image has a first region that is a region viewed by both eyes of the driver when the eyes are in an eye box and a second region that is a region of the image on an end part side in an image lateral direction relative to the first region, the second region is visible to only one of the eyes when the eyes are in the eye box,

the controller determines a position of the eyes in the eye box,

the controller determines a boundary between the first region and the second region based on the position of the eyes in the eye box, and

in a case where a graphic image included in the image is across the boundary between the first region and the second region, the controller executes blur processing on the graphic image.

2. The vehicle display device according to claim 1 , further comprising:

a detection unit that detects positions of the eyes of the driver, wherein

the controller determines a boundary line between the first region and the second region based on a detection result acquired by the detection unit.

3. The vehicle display device according to claim 2 , wherein

the second region includes a left-end region located on a left side with respect to the first region when viewed from the driver and a right-end region located on a right side with respect to the first region when viewed from the driver, and

the controller executes the blur processing on the graphic image on each of a boundary between the first region and the left-end region and a boundary between the first region and the right-end region.

4. The vehicle display device according to claim 1 , wherein

the second region includes a left-end region located on a left side with respect to the first region when viewed from the driver and a right-end region located on a right side with respect to the first region when viewed from the driver, and

the controller executes the blur processing on the graphic image on each of a boundary between the first region and the left-end region and a boundary between the first region and the right-end region.

5. The vehicle display device according to claim 1 , wherein

the second region is viewed by only one eye of the driver.

6. A vehicle display device comprising:

an image display unit that emits display light of an image;

a mirror that projects the display light emitted from the image display unit toward a reflection face in front of a driver; and

a controller that controls the image display unit, wherein

the image has a first region that is a region viewed by both eyes of the driver and a second region that is a region of the image on an end part side in an image lateral direction relative to the first region,

in a case where a graphic image included in the image is across a boundary between the first region and the second region, the controller executes blur processing on the graphic image,

the controller executes the blur processing on the graphic image in a prescribed range of the image lateral direction including a boundary line between the first region and the second region, and

the controller increases a degree of blur for the graphic image to be the highest at the boundary line.

7. The vehicle display device according to claim 6 , further comprising:

a detection unit that detects positions of the eyes of the driver, wherein

the controller determines a boundary line between the first region and the second region based on a detection result acquired by the detection unit.

8. The vehicle display device according to claim 6 , wherein

the second region includes a left-end region located on a left side with respect to the first region when viewed from the driver and a right-end region located on a right side with respect to the first region when viewed from the driver, and

the controller executes the blur processing on the graphic image on each of a boundary between the first region and the left-end region and a boundary between the first region and the right-end region.

9. A vehicle display device comprising:

an image display unit that emits display light of an image;

a mirror that is spaced away from the image display unit and is configured to project the display light emitted from the image display unit toward a reflection face of a windshield in front of a driver; and

a controller that controls the image display unit, wherein

the image has a first region that is a region viewed by both eyes of the driver when the eyes are in an eye box and a second region that is a region of the image on an end part side in an image lateral direction relative to the first region, the second region is visible to only one of the eyes when the eyes are in the eye box,

the controller determines a position of the eyes in the eye box,

the controller determines a boundary between the first region and the second region based on the position of the eyes in the eye box, and

in a case where a graphic image included in the image is across the boundary between the first region and the second region, the controller executes widening processing on the graphic image for widening a width in an image longitudinal direction.

10. The vehicle display device according to claim 9 , wherein

the widening processing widens the width in the longitudinal direction such that a virtual image perceived by a right eye of the driver overlaps a virtual imager perceived by the left eye of the driver in the longitudinal direction.

11. The vehicle display device according to claim 9 , wherein

the second region is viewed by only one eye of the driver.