Head-up display device for vehicle displaying a virtual image ahead of a virtual line of an observer

• US 9,857,668 B2
• Filed: 10/10/2016
• Issued: 01/02/2018
• Est. Priority Date: 05/12/2014
• Status: Active Grant

• Current Assignee: Yazaki Corporation
• Original Assignee: Yazaki Corporation
• Inventors: Nakamura, Go
• Primary Examiner(s): Chowdhury, Sultan
• Assistant Examiner(s): Cruz, Magda
• Application Number:
  US15/289,236
• Publication Number:
  US 20170023789A1
• Time in Patent Office: 449 Days
• CPC Class Codes: B60K 2360/334 Projection means
• CPC Class Codes: B60K 2360/347 Optical elements for superposition of display information
• CPC Class Codes: B60K 35/00 Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
• CPC Class Codes: B60K 35/213 Virtual instruments
• CPC Class Codes: B60K 35/23 Head-up displays [HUD] optical aspects of head-up displays G02B27/01
• CPC Class Codes: B60K 35/60 Instruments characterised by their location or relative disposition in or on vehicles arrangements of lighting devices on dashboards B60Q3/10
• CPC Class Codes: G02B 2027/0159 with mechanical means other than scaning means for positioning the whole image
• CPC Class Codes: G02B 2027/0183 Adaptation to parameters characterising the motion of the vehicle
• CPC Class Codes: G02B 2027/0185 Displaying image at variable distance
• CPC Class Codes: G02B 27/01 Head-up displays
• CPC Class Codes: G02B 27/0149 characterised by mechanical features G02B27/0176 takes precedence
• CPC Class Codes: G03B 21/10 Projectors with built-in or built-on screen
• CPC Class Codes: G03B 21/142 Adjusting of projection optics
• CPC Class Codes: G09G 2340/0485 Centering horizontally or vertically
• CPC Class Codes: G09G 2380/10 Automotive applications
• CPC Class Codes: G09G 3/001 using specific devices not provided for in groups G09G3/02 - G09G3/36, e.g. using an intermediate record carrier such as a film slide; Projection systems; Display of non-alphanumerical information, solely or in combination with alphanumerical information, e.g. digital display on projected diapositive as background slide projectors per se G03B23/00 = 42 HP
• CPC Class Codes: G09G 3/03 specially adapted for displays having non-planar surfaces, e.g. curved displays
• CPC Class Codes: G09G 5/38 with means for controlling the display position

Abstract

Provided is a display device capable of adequately displaying in accordance with a condition. In a HUD device including a projector projecting an image that is to be a virtual image, a screen to which an image from the projector is projected, a magnifying optic magnifying the image projected on the screen, the screen is moved by an actuator in a direction parallel to an optical axis of the projector.

Claims

1. A display device displaying a virtual image ahead of a virtual line of an observer, comprising:

a projector projecting an image becoming the virtual image;

a projected unit to which an image from the projector is projected;

an magnifying unit magnifying the image projected to the projected unit;

a motion unit moving the projected unit in a direction parallel to an optical axis of the projector;

a speed obtaining unit which rotates together with a vehicle shaft and obtains a running speed of the vehicle; and

a first controller controlling the motion unit according to the running speed of the vehicle obtained by the speed obtaining unit, whereby controlling the projected unit to depart from the projector and display the virtual image farther and smaller as the running speed of the vehicle becomes higher.

2. The display device according to claim 1,

wherein the speed obtaining unit and the first controller are mounted in the vehicle.

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

a position obtaining unit obtaining a running position of a vehicle; and

a second controller controlling the motion unit according to the running position of the vehicle obtained by the position obtaining unit, the position obtaining unit and the second controller being mounted in the vehicle.

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

a position obtaining unit obtaining a running position of a vehicle; and

a second controller controlling the motion unit according to the running position of the vehicle obtained by the position obtaining unit, the position obtaining unit and the second controller being mounted in the vehicle.