Display device

• US 9,823,471 B2
• Filed: 02/25/2016
• Issued: 11/21/2017
• Est. Priority Date: 08/05/2015
• Status: Active Grant

• Current Assignee: LG Electronics, Inc. (LG Corporation)
• Original Assignee: LG Electronics, Inc. (LG Corporation)
• Inventors: Kim, Dongwook, Xu, Xuelong, Lee, Kyoungil, Kim, Minhyung
• Primary Examiner(s): Bolotin, Dmitriy
• Application Number:
  US15/053,126
• Publication Number:
  US 20170038583A1
• Time in Patent Office: 635 Days
• CPC Class Codes: B60R 2300/205 using a head-up display
• CPC Class Codes: B60R 2300/50 characterised by the display information being shared, e.g. external display, data transfer to other traffic participants or centralised traffic controller
• CPC Class Codes: G02B 2027/0123 comprising devices increasing the field of view
• CPC Class Codes: G02B 2027/0154 with movable elements
• CPC Class Codes: G02B 2027/0181 Adaptation to the pilot/driver
• CPC Class Codes: G02B 27/0093 with means for monitoring data relating to the user, e.g. head-tracking, eye-tracking
• CPC Class Codes: G02B 27/0101 characterised by optical features G02B27/0172 takes precedence
• CPC Class Codes: G02B 27/0149 characterised by mechanical features G02B27/0176 takes precedence

Abstract

A Head Up Display (HUD) device in a vehicle and including a display panel configured to output an image containing driving information; a concave mirror configured to reflect the image to a windshield of the vehicle, so as to display a virtual image via the windshield in a forward direction of a driver of the vehicle, wherein the virtual image corresponds to a view box being an area in which the entire image containing the driving information is seen by the driver; a sensing unit configured to sense a position of the driver; a drive unit configured to move the concave mirror, and a controller configured to control the drive unit to correspondingly move the concave mirror in order to move the view box when the sensing unit senses a variation in the position of the driver.

Claims

1. A Head Up Display (HUD) device in a vehicle, comprising:

a display panel configured to output an image containing driving information;

a concave mirror configured to reflect the image to a windshield of the vehicle, so as to display a virtual image via the windshield in a forward direction of a driver of the vehicle, wherein the virtual image corresponds to a view box being an area in which the entire image containing the driving information is seen by the driver;

a sensing unit configured to sense a position of the driver;

a drive unit configured to move the concave mirror; and

a controller configured to control the drive unit to move the concave mirror in order to correspondingly move the view box when the sensing unit senses a variation in the position of the driver,

wherein the controller is further configured to control the display panel to correct a position of the virtual image so that the virtual image is fixed so as to match a scene in front of the windshield when the concave mirror is rotated as the position of the driver moves.

2. The HUD device according to claim 1, wherein the sensing unit is further configured to sense a movement of the driver'"'"'s head or pupils.

3. The HUD device according to claim 2, wherein the drive unit is further configured to rotate the concave mirror without moving a center position of the concave mirror.

4. The HUD device according to claim 1, wherein the drive unit is further configured to rotate the concave mirror vertically or horizontally.

5. The HUD device according to claim 1, wherein the controller is further configured to control the drive unit to rotate the concave mirror downward and correspondingly move the view box upward when the sensing unit senses that the position of the driver has moved upward.

6. The HUD device according to claim 1, wherein the controller is further configured to control the drive unit to rotate the concave mirror upward and correspondingly move the view box downward when the sensing unit senses that the position of the driver has moved downward.

7. The HUD device according to claim 1, wherein the controller is further configured to move the image on the display panel leftward by a second prescribed distance, in order to correct a rightward movement of the virtual image by a first prescribed distance when the concave mirror is rotated clockwise.

8. The HUD device according to claim 1, wherein the controller is further configured to control the display panel to correct a magnification of the virtual image when the concave mirror is rotated as the position of the driver moves.

9. The HUD device according to claim 8, wherein the controller is further configured to control the image on the display panel such that a ratio of a right side of the image to a left side of the image is greater than 1, in order to prevent a ratio of the left side of the virtual image to a right side of the virtual image from becoming greater than 1 when the concave mirror is rotated clockwise.

10. A Head Up Display (HUD) device in a vehicle, comprising:

a display panel configured to output an image containing driving information;

a combiner configured to reflect a portion of the image towards a driver of the vehicle and to pass a remaining portion of the image to a windshield of the vehicle, so as to display a virtual image via the windshield in a forward direction of a driver of the vehicle, wherein the virtual image corresponds to a view box being an area in which the entire image containing the driving information is seen by the driver;

a sensing unit configured to sense a position of the driver;

a drive unit configured to move the combiner; and

a controller configured to control the drive unit to move the combiner in order to move the view box when the sensing unit senses a variation in the position of the driver,

wherein the controller is further configured to control the display panel to correct a position of the virtual image so as to match a scene in front of a windshield when the combiner is rotated as the position of the driver is moved.

11. The HUD display device according to claim 10, wherein the drive unit is further configured to rotate the combiner vertically or horizontally.

12. The HUD device according to claim 10, wherein the controller is further configured to control the drive unit to rotate the combiner downward and correspondingly move the view box upward when the sensing unit senses that the position of the driver has moved upward.

13. The HUD display device according to claim 10, wherein the controller is further configured to control the drive unit to rotate the combiner upward and correspondingly move the view box downward when the sensing unit senses that the position of the driver has moved downward.

14. The HUD display device according to claim 10, wherein the controller is further configured to control the display panel to correct magnification of the virtual image when the combiner is rotated as the position of the driver is moved.

15. The HUD device according to claim 10, wherein the sensing unit is further configured to sense a movement of the driver'"'"'s head or pupils.