Head-up display system and head-up display

Patent metadata

Field	Value
Publication number	US-9632311-B2
Application number	US-201414513927-A
Country	US
Kind code	B2
Filing date	Oct 14, 2014
Priority date	Oct 16, 2013
Publication date	Apr 25, 2017
Grant date	Apr 25, 2017

Abstract

A head-up display system for display on a windowpane includes: an image-generating display device configured to generate an image; and an optical system configured to deflect the generated image onto the windowpane. The image-generating display device is an electronic paper display device, the electronic paper display device including a curved image-generating surface having a curvature, the curvature of the image-generating surface being adjustable to adjust the curvature of the image-generating surface so as to compensate for image distortion occurring due to a curvature of the windowpane.

First claim

What is claimed is:

1. A head-up display system ( 10 ) for display on a windowpane ( 100 ), comprising:
an image-generating display device ( 2 ) configured to generate an image;
a lighting source ( 4 ) configured to generate radiation to light the image-generating display device ( 2 );
an optical system ( 3 ) configured to deflect the generated image onto the windowpane ( 100 ); and
a time-division multiplexer ( 5 ) configured to feed color information to the lighting source ( 4 ) in a ratio of 3:1,
wherein the lighting source includes:
first, second and third light sources configured to emit light, respectively in the red, green and blue spectral regions, and
a synchronization unit ( 6 ) configured to synchronize the display device ( 2 ) to selectively actuate respective ones of the first, second and third light sources for display of a full-color image, and

wherein the image-generating display device ( 2 ) is an electronic paper display device on a flexible substrate, the electronic paper display device including a curved image-generating surface ( 20 ) having a curvature, the curvature of the image-generating surface ( 20 ) being adjustable, during initialization and during normal operation of the display device ( 2 ), by mechanical or electromechanical components configured to adjust the curvature of the image-generating surface ( 20 ) so as to compensate for image distortion occurring due to a curvature of the windowpane.

2. The head-up display system as claimed in claim 1 , wherein the image-generating display device ( 2 ) is configured to, during operation of the head-up display system, reflect the radiation generated by the lighting source ( 4 ).

3. The head-up display system as claimed in claim 1 , wherein the image-generating display device ( 2 ) is configured to, during operation of the head-up display system, transmit the radiation generated by the lighting source ( 4 ).

4. The head-up display system as claimed in claim 1 , wherein the lighting source ( 4 ) is configured to be, during operation of the head-up display system, adjustable with respect to a colorimetric locus.

5. A head-up display ( 1 ) comprising:
the head-up display system ( 10 ) as claimed in claim 1 ; and
the windowpane ( 100 ) onto which the optical system ( 3 ) directs the image of the image-generating display device ( 2 ).

Assignees

• Pasca Andrei
• Continental Automotive Gmbh

Inventors

• Pasca Andrei

Classifications

• G02B27/01

  Head-up displays · CPC title

• G02B27/0101 Primary

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

• G02B2027/0112

  comprising device for genereting colour display · CPC title

• G02B2027/011

  comprising device for correcting geometrical aberrations, distortion · CPC title

• G02B2027/013

  comprising a combiner of particular shape, e.g. curvature · CPC title