Head-up display system and head-up display

• US 9,632,311 B2
• Filed: 10/14/2014
• Issued: 04/25/2017
• Est. Priority Date: 10/16/2013
• Status: Active Grant

• Current Assignee: Continental Automotive GmbH (Continental AG)
• Original Assignee: Continental Automotive GmbH (Continental AG)
• Inventors: Pasca, Andrei
• Primary Examiner(s): Lao, Lun-Yi
• Assistant Examiner(s): DEADERICK, ELLIOTT J
• Application Number:
  US14/513,927
• Publication Number:
  US 20150102980A1
• Time in Patent Office: 924 Days
• CPC Class Codes: G02B 2027/011 comprising device for correcting geometrical aberrations, distortion
• CPC Class Codes: G02B 2027/0112 comprising device for genereting colour display
• CPC Class Codes: G02B 2027/013 comprising a combiner of particular shape, e.g. curvature
• CPC Class Codes: G02B 27/01 Head-up displays
• CPC Class Codes: G02B 27/0101 characterised by optical features G02B27/0172 takes precedence

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.

Claims

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).