Motor vehicle and display of a three-dimensional graphical object

Patent metadata

Field	Value
Publication number	US-9684166-B2
Application number	US-201514706530-A
Country	US
Kind code	B2
Filing date	May 7, 2015
Priority date	May 8, 2014
Publication date	Jun 20, 2017
Grant date	Jun 20, 2017

Abstract

A display apparatus displays a three-dimensional graphical object. The display apparatus includes a projection device for producing an autostereoscopic projection image of the object. The object is displayed for a viewer such that the viewer has an improved three-dimensional impression from the representation. The display apparatus to this end has a specularly reflective and light-transparent combiner plate, and the projection device is configured to project the projection image onto the combiner plate such that for a viewer, viewing from a predetermined viewing direction through the combiner plate, the projection image appears as a mirror image on the combiner plate.

First claim

The invention claimed is:

1. A display apparatus to display a three-dimensional graphical object, comprising:
a specularly reflective and light-transparent combiner plate; and
a projection device to produce an auto-stereoscopic projection image of the object and to project the projection image onto the combiner plate such that for a viewer, viewing from a predetermined viewing direction through the combiner plate, the projection image appears as a mirror image on the combiner plate, wherein
the combiner plate lies at least partially within a plate plane, and
both the projection device and the viewer are located on the same side of the plate plane.

2. The display apparatus according to claim 1 , wherein the projection device has a lens array or a prism array or a parallax barrier.

3. The display apparatus according to claim 1 , wherein
the combiner plate lies at least partially within the plate plane,
the projection device has a screen with a screen plane, and
the plate plane and the screen plane enclose an angle of 35° to 65°.

4. The display apparatus according to claim 1 , wherein
the combiner plate lies at least partially within the plate plane,
the projection device has a screen with a screen plane, and
the plate plane of the combiner plate and the screen plane enclose an angle of 40° to 50°.

5. The display apparatus according to claim 1 , wherein the combiner plate is made of at least one of glass and foil.

6. The display apparatus according to claim 1 , further comprising:
a capturing device to produce positional data which indicate a position of the viewer; and
a control device to control the projection device in dependence on the positional data such that the projection image maintains a virtual spatial position for the object if the position of the viewer changes.

7. The display apparatus according to claim 6 , wherein the capturing device has a 2D or 3D camera.

8. The display apparatus according to claim 6 , wherein the capturing device has an eye tracker to track a viewing axis for eyes of the viewer.

9. The display apparatus according to claim 6 , wherein the control device controls the projection device such that the object appears to rotate as the position of the viewer changes.

10. The display apparatus according to claim 1 , wherein
a background surface is provided behind the combiner plate such that the combiner plate is between the background surface and the viewer,
a space is formed between the background surface and the combiner plate, and
the projection image is represented such that the object appears to the viewer floating in the space formed between the background surface and the combiner plate.

11. The display apparatus according to claim 10 , wherein the background surface is at least partially visible through the combiner plate.

12. The display apparatus according to claim 1 , wherein
the projection device has a screen on which the projection image is produced, and
the combiner plate is provided at an angle with respect to the viewing direction such that the projection image on the screen is specularly reflected by the combiner plate to the viewer.

13. A motor vehicle comprising the display apparatus according to claim 1 .

14. The motor vehicle according to claim 13 , wherein the combiner plate of the display apparatus is arranged in an instrument cluster of the motor vehicle.

15. The motor vehicle according to claim 13 , wherein the combiner plate of the display apparatus is arranged in an infotainment system of the motor vehicle.

16. The motor vehicle according to claim 13 , wherein a head-up display is provided by the combiner plate of the display apparatus.

17. A method for displaying a three-dimensional graphical object, comprising:
producing an autostereoscopic projection image of the object by a projection device;
emitting the projection image from the projection device, to a specularly reflective and light-transparent combiner plate; and
at least partially specularly reflecting the projection image to a viewer by the combiner plate such that, for the viewer, the projection image appears as a mirror image on the combiner plate, wherein
the combiner plate lies at least partially within a plate plane, and
both the projection device and the viewer are located on the same side of the plate plane.

18. The display apparatus according to claim 1 , wherein a projection device comprises a lenticular 3D display.

Assignees

• Audi Ag

Inventors

• Kuehne Marcus

Classifications

• G02B27/0101 Primary

  characterised by optical features (G02B27/0172 takes precedence) · CPC title

• G02B2027/0134

  of stereoscopic type · CPC title

• G02B2027/0187

  slaved to motion of at least a part of the body of the user, e.g. head, eye · CPC title

• G02B27/0093

  with means for monitoring data relating to the user, e.g. head-tracking, eye-tracking · CPC title

• H04N13/275

  from three-dimensional [3D] object models, e.g. computer-generated stereoscopic image signals · CPC title