Display device, in particular for motor vehicle

• US 9,703,372 B2
• Filed: 10/01/2012
• Issued: 07/11/2017
• Est. Priority Date: 10/01/2011
• Status: Expired due to Fees

• Current Assignee: Visteon Global Technologies Incorporated (Visteon Corporation)
• Original Assignee: Visteon Global Technologies Incorporated (Visteon Corporation)
• Inventors: Gall, Hugues
• Primary Examiner(s): Edwards, Carolyn R
• Assistant Examiner(s): NEUPANE, KRISHNA P.
• Application Number:
  US14/348,836
• Publication Number:
  US 20150049015A1
• Time in Patent Office: 1,744 Days
• Field of Search: None
• CPC Class Codes: B60K 2360/182 Distributing information between displays
• CPC Class Codes: B60K 2360/785 on or in relation to the windshield or windows
• CPC Class Codes: B60K 2370/1529 Head-up displays
• CPC Class Codes: B60K 2370/182 Distributing information between displays
• CPC Class Codes: B60K 2370/785 on or in relation to the windshield or windows
• CPC Class Codes: B60K 35/00 Instruments specially adapted for vehicles; Arrangement of instruments in or on vehicles
• CPC Class Codes: B60K 35/23 Head-up displays [HUD] optical aspects of head-up displays G02B27/01
• CPC Class Codes: B60K 35/29 Instruments characterised by the way in which information is handled, e.g. showing information on plural displays or prioritising information according to driving conditions
• 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 15/00 Optical objectives with means for varying the magnification anamorphotic objectives G02B13/08
• CPC Class Codes: G02B 2027/014 comprising information/image processing systems
• CPC Class Codes: G02B 2027/0147 comprising a device modifying the resolution of the displayed image
• CPC Class Codes: G02B 27/0101 characterised by optical features G02B27/0172 takes precedence
• CPC Class Codes: G06F 3/013 Eye tracking input arrangements G06F3/015 takes precedence
• CPC Class Codes: G09G 2380/10 Automotive applications
• CPC Class Codes: G09G 5/00 Control arrangements or circuits for visual indicators common to cathode-ray tube indicators and other visual indicators image data processing or generation, in general G06T

Abstract

A display device, in particular for motor vehicle, includes a projection module and an optical path. The optical path has at least one reflection element, which is designed to reflect at least partially an image originating from the projection module in a normal direction of gaze of a user of the display device. A first configuration of the optical path is applied in a first mode of operation of the display device, and a second configuration of the optical path is applied in a second mode of operation of the display device. In the second mode of operation of the display device, at least a part of the image generated by the projection module is visible to the user of the display device in a magnified manner with respect to the first mode of operation of the display device.

Claims

1. A display device, in particular for a motor vehicle, comprising

a projection module;

and

an optical path

the optical path comprising at least one reflection element,

the reflection element being designed to reflect at least partially an image originating from the projection module in a normal direction of gaze of a user of the display device,

the image originating from the projection module being generated by the projection module,

wherein the display device is designed to be operated in a first mode of operation corresponding to a first configuration of the optical path,

wherein the display device is designed to be operated in a second mode of operation corresponding to a second configuration of the optical path,

wherein, in the second mode of operation of the display device, at least a part of the image generated by the projection module is visible to the user of the display device in a magnified manner with respect to the first mode of operation of the display device;

wherein the display device is configured to choose the first mode of operation or the second mode of operation of the display device based on an item of selection information

wherein the use of the display device is made more suitable for the user having impaired visual ability by choosing the first or second mode of operation of the display device depending on the item of selection information;

wherein the display device comprises a human-machine interface or the display device is associated with a human-machine interface, and via the human-machine interface, in response to an interaction of the user of the display device, the item of selection information is transmitted to the display device such that the display device is operated, either following the first mode of operation, or following the second mode of operation, depending on the item of selection information, wherein the item of selection information is generated following identification of the user of the display device; and

wherein the image generated by the projection module or a field of view of the user includes a first area and a second area, and a representation of an item of information in the first display area is varied or changed to result in an automatic representation of the item of information in the second display area when the item of information represented increases in size.

2. The display device as claimed in claim 1, wherein, in the second mode of operation of the display device, only a part of the image generated by the projection module is visible to the user of the display device.

3. The display device as claimed in claim 1, wherein, in the second mode of operation of the display device, the whole image generated by the projection module is visible to the user of the display device.

4. The display device as claimed in claim 1, wherein

the image generated by the projection module is an image comprising a first number of image elements (pixels) in a first direction of the image and comprising a second number of image elements (pixels) in a second direction of the image, and

in the second mode of operation of the display device, a third number of image elements in the first direction of the image and a fourth number of image elements in the second direction of the image is visible to the user of the display device, the third number of image elements being less than the first number of image elements and/or the fourth number of image elements being less than the second number of image elements.

5. The display device as claimed in claim 1, wherein the display device comprises a liquid crystal display (LCD) module.

6. The display device as claimed in claim 1, wherein the display device comprises a matrix display module.

7. The display device as claimed in claim 1, wherein the reflection element is an element positioned at a distance with respect to a windscreen of the motor vehicle.

8. The display device as claimed in claim 1, wherein the display device further comprises a measurement means, wherein the measurement means is configured to automatically measure a visual ability of the user in order to automatically obtain the item of selection information without interaction with the user.