US 11,999,231 B2
Head-up display device
Masayuki Kondo, Kariya (JP); and Erika Sawada, Kariya (JP)
Assigned to DENSO CORPORATION, Kariya (JP)
Filed by DENSO CORPORATION, Kariya (JP)
Filed on Oct. 23, 2020, as Appl. No. 17/078,395.
Application 17/078,395 is a continuation of application No. PCT/JP2019/008604, filed on Mar. 5, 2019.
Claims priority of application No. 2018-086351 (JP), filed on Apr. 27, 2018.
Prior Publication US 2021/0039495 A1, Feb. 11, 2021
Int. Cl. B60K 35/00 (2006.01); G02B 27/01 (2006.01); B60K 35/23 (2024.01)
CPC B60K 35/00 (2013.01) [G02B 27/0101 (2013.01); B60K 35/23 (2024.01); B60K 2360/31 (2024.01); B60K 2360/334 (2024.01)] 10 Claims
OG exemplary drawing
 
1. A head-up display device for a vehicle that superimposes and displays a virtual image on a foreground of an occupant of the vehicle, the head-up display device comprising:
a projector that emits light of a display image to be displayed as the virtual image;
an adjustment mechanism that mechanically displaces a projection range of a projection member mounted on the vehicle, to which the light emitted from the projector is projected;
a state controller that controls a state of the display image to be projected by the projector to maintain a display position of the virtual image according to a displacement of the projection range by the adjustment mechanism; and
an information acquisition unit that acquires position information of an eye point of the occupant, wherein:
the adjustment mechanism displaces the projection range to a corresponding projection position corresponding to the eye point in accordance with a movement of the eye point;
the state controller temporarily changes the state of the display image to display the virtual image at a corresponding display position corresponding to the eye point in accordance with the movement of the eye point; and
the state controller returns the state of the display image toward a previous state of the display image before changing to maintain displaying the virtual image at the corresponding display position in accordance with the displacement of the projection range to the corresponding projection position by the adjustment mechanism.