VIDEO MIRROR SYSTEM FOR A VEHICLE

• US 20080180529A1
• Filed: 04/02/2008
• Published: 07/31/2008
• Est. Priority Date: 03/02/2000
• Status: Active Grant

• Current Assignee: Donnelly Corporation (Magna International Incorporated)
• Original Assignee: Donnelly Corporation (Magna International Incorporated)
• Inventors: Taylor, David W., McCarthy, Kevin C., Schofield, Kenneth, Lynam, Niall R.
• Granted Patent: US 8,095,310 B2
• Time in Patent Office: Days
• US Class Current: 348/148
• CPC Class Codes: B60C 23/0408 transmitting the signals by non-mechanical means from the wheel or tyre to a vehicle body mounted receiver
• CPC Class Codes: B60N 2/976 massaging systems
• CPC Class Codes: B60Q 1/2665 on rear-view mirrors lighting devices for vehicle interior on or for rear-view mirrors B60Q3/258
• CPC Class Codes: B60Q 5/006 indicating risk of collision between vehicles or with pedestrians
• CPC Class Codes: B60Q 9/00 Arrangement or adaptation of signal devices not provided for in one of main groups B60Q1/00 - B60Q7/00 , e.g. haptic signalling
• CPC Class Codes: B60R 1/00 Optical viewing arrangements; Real-time viewing arrangements for drivers or passengers using optical image capturing systems, e.g. cameras or video systems specially adapted for use in or on vehicles
• CPC Class Codes: B60R 1/088 using a cell of electrically changeable optical characteristic, e.g. liquid-crystal or electrochromic mirrors
• CPC Class Codes: B60R 1/12 Mirror assemblies combined with other articles, e.g. clocks
• CPC Class Codes: B60R 1/28 with an adjustable field of view
• CPC Class Codes: B60R 11/04 Mounting of cameras operative during drive; Arrangement of controls thereof relative to the vehicle
• CPC Class Codes: B60R 2001/1215 with information displays
• CPC Class Codes: B60R 2001/1253 with cameras, video cameras or video screens
• CPC Class Codes: B60R 2300/105 using multiple cameras
• CPC Class Codes: B60R 2300/207 using multi-purpose displays, e.g. camera image and navigation or video on same display
• CPC Class Codes: B60R 2300/301 combining image information with other obstacle sensor information, e.g. using RADAR/LIDAR/SONAR sensors for estimating risk of collision
• CPC Class Codes: B60R 2300/406 using wireless transmission
• CPC Class Codes: B60R 2300/806 for aiding parking
• CPC Class Codes: B60R 2300/8066 for monitoring rearward traffic
• CPC Class Codes: B60R 2300/8093 for obstacle warning
• CPC Class Codes: G01C 21/20 Instruments for performing navigational calculations G01C21/24, G01C21/26 take precedence
• CPC Class Codes: G01C 21/26 : specially adapted for navigation in a road network
• CPC Class Codes: G01C 21/36 : Input/output arrangements for on-board computers
• CPC Class Codes: G01C 21/365 : Guidance using head up displays or projectors, e.g. virtual vehicles or arrows projected on the windscreen or on the road itself
• CPC Class Codes: G01S 13/862 : Combination of radar systems with sonar systems
• CPC Class Codes: G01S 13/865 : Combination of radar systems with lidar systems
• CPC Class Codes: G01S 13/867 : Combination of radar systems with cameras
• CPC Class Codes: G06T 2207/30252 : Vehicle exterior; Vicinity of vehicle
• CPC Class Codes: G06T 5/80 : Geometric correction
• CPC Class Codes: G06V 20/58 : Recognition of moving objects or obstacles, e.g. vehicles or pedestrians; Recognition of traffic objects, e.g. traffic signs, traffic lights or roads
• CPC Class Codes: H04N 23/90 : Arrangement of cameras or camera modules, e.g. multiple cameras in TV studios or sports stadiums
• CPC Class Codes: H04N 5/265 : Mixing
• CPC Class Codes: H04N 7/181 : for receiving images from a plurality of remote sources
• CPC Class Codes: H04N 7/183 : for receiving images from a single remote source

Abstract

A vehicular video mirror system includes an interior rearview mirror assembly that includes a reflective element having a transflective mirror reflector that is at least about 15 percent transmitting to visible light incident at the rear of the reflective element, A video display is disposed to the rear of the reflective element and emits light when actuated that passes through the transflective mirror reflector of the reflective element to be visible to a driver of the vehicle viewing the front of the reflective element. The video display is back lit by at least one light source and is operable to exhibit a display intensity as viewed by the driver of at least about 400 candelas per square meter when the interior rearview mirror assembly equipped the reflective element is mounted and is viewed in the vehicle.

Claims

1. A video mirror system for a vehicle, said video mirror system comprising:

an interior rearview mirror assembly mountable at an interior portion of a vehicle, said interior rearview mirror assembly comprising a reflective element, said reflective element having a front portion that faces generally towards the driver of the vehicle when said interior rearview mirror assembly is mounted in the vehicle, and having a rear portion that is generally opposite said front portion;

wherein said reflective element comprises a transflective mirror reflector, said reflective element being at least about 15 percent transmitting to visible light incident at said rear portion of said reflective element;

a video display disposed to the rear of said rear portion of said reflective element, said video display emitting light when actuated that passes through said transflective mirror reflector of said reflective element to be visible to a driver of the vehicle viewing said front portion of said reflective element;

wherein said video display is back lit by at least one of (i) a cold cathode vacuum fluorescent light source and (ii) at least one light emitting diode; and

wherein said video display is operable to exhibit a display intensity as viewed by the driver of at least about 400 candelas per square meter when said interior rearview mirror assembly is mounted and is viewed in the vehicle.

2. The video mirror system of claim 1, wherein said mirror assembly comprises at least one of (a) a user input for a wireless communication between the vehicle and a remote location, (b) at least one microphone, (c) a compass direction display, and (d) a garage door opener transmitter.

3. The video mirror system of claim 1, wherein said reflective element comprises an electrochromic reflective element.

4. The video mirror system of claim 3, wherein said electrochromic reflective element is at least about 20 percent transmitting to visible light incident at said rear portion of said electrochromic reflective element when in its bleached state.

5. The video mirror system of claim 4, wherein said electrochromic reflective element is at least about 60 percent reflective to visible light incident at said front portion of said electrochromic reflective element when in its bleached state.

6. The video mirror system of claim 3, wherein said electrochromic reflective element is at least about 25 percent transmitting to visible light incident at said rear portion of said electrochromic reflective element when in its bleached state.

7. The video mirror system of claim 6, wherein said electrochromic reflective element is at least about 60 percent reflective to visible light incident at said front portion of said electrochromic reflective element when in its bleached state.

8. The video mirror system of claim 3, wherein said electrochromic reflective element is at least about 60 percent reflective to visible light incident at said front portion of said electrochromic reflective element when in its bleached state.

9. The video mirror system of claim 1, wherein said video display displays driving instructions responsive to a determination of the geographic position of the vehicle in which said interior rearview mirror assembly is mounted.

10. The video mirror system of claim 9, wherein said driving instructions comprise turn-by-turn instructions.

11. The video mirror system of claim 9, wherein the geographic position of the vehicle in which said interior rearview mirror assembly is mounted is determined by a global positioning system.

12. The video mirror system of claim 11, wherein a particular instruction is not displayed before the global positioning system determines that the actual geographic position of the vehicle is at or close to the geographic location associated with said particular instruction.

13. The video mirror system of claim 12, wherein said particular instruction is not displayed after the global positioning system determines that the actual geographic position of the vehicle is no longer at or close to the geographic location associated with said particular instruction.

14. The video mirror system of claim 1, wherein said video display comprises at least one of (a) a back lit liquid crystal display that is back lit by at least one white light emitting light emitting diode, (b) a back lit liquid crystal display that is back lit by at least two white light emitting light emitting diodes, and (c) a back lit liquid crystal display that is back lit by at least four white light emitting light emitting diodes.

15. The video mirror system of claim 1, wherein said video display comprises at least one of (i) a back lit liquid crystal display element, (ii) a back lit thin film transistor liquid crystal display element, (iii) a multi-pixel display element and (iv) a back lit liquid crystal display that is back lit by a plurality of white light emitting light emitting diodes.

16. The video mirror system of claim 1, wherein said video display displays video images captured by a video camera of the vehicle in which said interior rearview mirror assembly is mounted and is viewed.

17. The video mirror system of claim 16, wherein said video camera comprises a rear back-up camera.

18. The video mirror system of claim 17, wherein video images captured by said rear back-up camera are displayed by said video display when the driver of the vehicle, when operating the vehicle, selects a reverse gear.

19. The video mirror system of claim 1 further comprising a seat adjustment system, said seat adjustment system being operable to automatically adjust a seat of the vehicle in response to biometric data received via a data input, said biometric data pertaining to the occupant of the seat of the vehicle.

20. A video mirror system for a vehicle, said video mirror system comprising:

an interior electrochromic rearview mirror assembly mountable at an interior portion of a vehicle, said interior rearview mirror assembly comprising an electrochromic reflective element, said reflective element having a front portion that faces generally towards the driver of the vehicle when said interior rearview mirror assembly is mounted in the vehicle, and having a rear portion that is generally opposite said front portion;

a video display disposed to the rear of said rear portion of said reflective element, said display emitting light when actuated that passes through said transflective mirror reflector of said reflective element to be visible to a driver of the vehicle viewing said front portion of said reflective element;

said mirror assembly comprising a user input, said user input comprising at least one of (a) a user-actuatable button, (b) at least one microphone and (c) a touch-sensitive element;

wherein said display comprises a video display and wherein said video display is operable to exhibit a display intensity as viewed by the driver of at least about 400 candelas per square meter when said interior rearview mirror assembly is mounted and is viewed in the vehicle;

wherein said video display comprises at least one of (i) a back lit liquid crystal display element, (ii) a back lit thin film transistor liquid crystal display element, (iii) a back lit liquid crystal display that is back lit by a plurality of white light emitting light emitting diodes, (iv) a back lit liquid crystal display that is back lit by at least one white light emitting light emitting diode, (v) a back lit liquid crystal display that is back lit by at least two white light emitting light emitting diodes, and (vi) a back lit liquid crystal display that is back lit by at least four white light emitting light emitting diodes; and

wherein said reflective element comprises a transflective mirror reflector, said reflective element being at least about 15 percent transmitting to visible light incident at said rear portion of said reflective element when said electrochromic reflective element is in a bleached state.

21. The video mirror system of claim 20, wherein said electrochromic reflective element is at least about 20 percent transmitting to visible light incident at said rear portion of said electrochromic reflective element when in its bleached state.

22. The video mirror system of claim 21, wherein said electrochromic reflective element is at least about 60 percent reflective to visible light incident at said front portion of said electrochromic reflective element when in its bleached state.

23. The video mirror system of claim 20, wherein said electrochromic reflective element is at least about 25 percent transmitting to visible light incident at said rear portion of said electrochromic reflective element when in its bleached state.

24. The video mirror system of claim 23, wherein said electrochromic reflective element is at least about 60 percent reflective to visible light incident at said front portion of said electrochromic reflective element when in its bleached state.

25. The video mirror system of claim 20, wherein said electrochromic reflective element is at least about 60 percent reflective to visible light incident at said front portion of said electrochromic reflective element when in its bleached state.

26. A video mirror system for a vehicle, said video mirror system comprising:

an interior electrochromic rearview mirror assembly mountable at an interior portion of a vehicle, said interior rearview mirror assembly comprising an electrochromic reflective element, said reflective element having a front portion that faces generally towards the driver of the vehicle when said interior rearview mirror assembly is mounted in the vehicle, and having a rear portion that is generally opposite said front portion;

said reflective element comprising a transflective mirror reflector;

a display disposed to the rear of said rear portion of said reflective element, said display emitting light when actuated that passes through said transflective mirror reflector of said reflective element to be visible to a driver of the vehicle viewing said front portion of said reflective element;

wherein said display comprises a video display and wherein said video display is operable to exhibit a display intensity as viewed by the driver of at least about 400 candelas per square meter when said interior rearview mirror assembly is mounted and is viewed in the vehicle; and

wherein said video display comprises at least one of (i) a back lit liquid crystal display element, (ii) a back lit thin film transistor liquid crystal display element, (iii) a multi-pixel display element and (iv) a back lit liquid crystal display that is back lit by a plurality of white light emitting light emitting diodes.

27. The video mirror system of claim 26, wherein said reflective element is at least about 15 percent transmitting to visible light incident at said rear portion of said reflective element, and at least about 60 percent reflective to visible light incident at said front portion of said reflective element, when said electrochromic reflective element is in a bleached state.

28. The video mirror system of claim 26, wherein said video display comprises at least one of (a) a back lit liquid crystal display that is back lit by at least one white light emitting high-intensity power light emitting diode, (b) a back lit liquid crystal display that is back lit by at least two white light emitting light emitting diodes, and (c) a back lit liquid crystal display that is back lit by at least four white light emitting light emitting diodes.

29. The video mirror system of claim 26, wherein said video display displays video images captured by a video camera of the vehicle in which said interior rearview mirror assembly is mounted and is viewed.

30. The video mirror system of claim 29, wherein said video camera comprises a rear back-up camera.

31. The video mirror system of claim 30, wherein video images captured by said rear back-up camera are displayed by said video display when the driver of the vehicle, when operating the vehicle, selects a reverse gear.

32. The video mirror system of claim 26 further comprising a seat adjustment system, said seat adjustment system being operable to automatically adjust a seat of the vehicle in response to biometric data received via a data input, said biometric data pertaining to the occupant of the seat of the vehicle.

33. The video mirror system of claim 32, wherein said data input comprises at least one of (i) a memory device, (ii) a remote source, (iii) an input device, (iv) a communication link, and (v) a portable device.

34. A video mirror system for a vehicle, said video mirror system comprising:

an interior rearview mirror assembly mountable at an interior portion of a vehicle, said interior rearview mirror assembly comprising a reflective element, said reflective element having a front portion that faces generally towards the driver of the vehicle when said interior rearview mirror assembly is mounted in the vehicle, and having a rear portion that is generally opposite said front portion;

wherein said reflective element comprises a transflective mirror reflector, said reflective element being at least about 15 percent transmitting to visible light incident at said rear portion of said reflective element;

a video display disposed to the rear of said rear portion of said reflective element, said video display emitting light when actuated that passes through said transflective mirror reflector of said reflective element to be visible to a driver of the vehicle viewing said front portion of said reflective element;

said video display displaying video images captured by a rear back-up camera when said interior rearview mirror assembly is mounted and is viewed in the vehicle and when the driver of the vehicle, when operating the vehicle, selects a reverse gear; and

wherein said video display comprises a liquid crystal display element back lit by a plurality of white light emitting light emitting diodes, and wherein said video display is operable to exhibit a display intensity as viewed by the driver of at least about 400 candelas per square meter when said interior rearview mirror assembly is mounted and is viewed in the vehicle.

35. The video mirror system of claim 34, wherein said reflective element comprises an electrochromic reflective element.

36. The video mirror system of claim 35, wherein said electrochromic reflective element is at least about 20 percent transmitting to visible light incident at said rear portion of said electrochromic reflective element when in its bleached state.

37. The video mirror system of claim 36, wherein said electrochromic reflective element is at least about 60 percent reflective to visible light incident at said front portion of said electrochromic reflective element when in its bleached state.

38. The video mirror system of claim 35, wherein said electrochromic reflective element is at least about 25 percent transmitting to visible light incident at said rear portion of said electrochromic reflective element when in its bleached state.

39. The video mirror system of claim 38, wherein said electrochromic reflective element is at least about 60 percent reflective to visible light incident at said front portion of said electrochromic reflective element when in its bleached state.

40. The video mirror system of claim 35, wherein said electrochromic reflective element is at least about 60 percent reflective to visible light incident at said front portion of said electrochromic reflective element when in its bleached state.

41. A video mirror system for a vehicle, said video mirror system comprising:

an interior rearview mirror assembly mountable at an interior portion of a vehicle, said interior rearview mirror assembly comprising a reflective element, said reflective element having a front portion that faces generally towards the driver of the vehicle when said interior rearview mirror assembly is mounted in the vehicle, and having a fear portion that is generally opposite said front portion;

wherein said reflective element comprises a transflective mirror reflector, said reflective element being at least about 20 percent transmitting to visible light incident at said rear portion of said reflective element;

a video display disposed to the rear of said rear portion of said reflective element, said video display emitting light when actuated that passes through said transflective mirror reflector of said reflective element to be visible to a driver of the vehicle viewing said front portion of said reflective element; and

wherein said video display comprises a liquid crystal display element back lit by at least four white light emitting light emitting diodes, and wherein said video display is operable to exhibit a display intensity as viewed by the driver of at least about 400 candelas per square meter when said interior rearview mirror assembly is mounted and is viewed in the vehicle.

42. The video mirror system of claim 41, wherein said video display comprises a thin film transistor liquid crystal display element.

43. The video mirror system of claim 42, wherein said reflective element comprises an electrochromic reflective element.

44. The video mirror system of claim 43, said electrochromic reflective element being at least about 25 percent transmitting to visible light incident at said rear portion of said electrochromic reflective element when in its bleached state.

45. The video mirror system of claim 44, said electrochromic reflective element being at least about 60 percent reflective to visible light incident at said front portion of said electrochromic reflective element when in its bleached state.

46. The video mirror system of claim 43, said electrochromic reflective element being at least about 60 percent reflective to visible light incident at said front portion of said electrochromic reflective element when in its bleached state.

47. The video mirror system of claim 43, wherein said video display displays driving instructions responsive to a determination of the geographic position of the vehicle in which said interior rearview mirror assembly is mounted, is operated and viewed.

48. The video mirror system of claim 47, wherein said driving instructions comprise turn-by-turn instructions.

49. The video mirror system of claim 47, wherein the geographic position of the vehicle in which said interior rearview mirror assembly is mounted is determined by a global positioning system.

50. The video mirror system of claim 49, wherein a particular instruction is not displayed before the global positioning system determines that the actual geographic position of the vehicle is at or close to the geographic location associated with said particular instruction.

51. The video mirror system of claim 50, wherein said particular instruction is not displayed after the global positioning system determines that the actual geographic position of the vehicle is no longer at or close to the geographic location associated with said particular instruction.

52. The video mirror system of claim 41, wherein said video display displays video images captured by a video camera of the vehicle in which said interior rearview mirror assembly is mounted and is viewed.

53. The video mirror system of claim 52, wherein said video camera comprises a rear back-up camera.

54. The video mirror system of claim 53, wherein video images captured by said rear back-up camera are displayed by said video display when the driver of the vehicle, when operating the vehicle, selects a reverse gear.

55. A video mirror system for a vehicle, said video mirror system comprising:

an interior electrochromic rearview mirror assembly mountable at an interior portion of a vehicle, said interior rearview mirror assembly comprising an electrochromic reflective element, said reflective element having a front portion that faces generally towards the driver of the vehicle when said interior rearview mirror assembly is mounted in the vehicle, and having a rear portion that is generally opposite said front portion;

said reflective element comprising a transflective mirror reflector;

a display disposed to the rear of said rear portion of said reflective element, said display emitting light when actuated that passes through said transflective mirror reflector of said reflective element to be visible to a driver of the vehicle viewing said front portion of said reflective element;

wherein said display comprises a video display and wherein said video display is operable to exhibit a display intensity as viewed by the driver of at least about 400 candelas per square meter when said interior rearview mirror assembly is mounted and is viewed in the vehicle, and wherein said video display comprises a back lit liquid crystal display that is back lit by a plurality of white light emitting light emitting diodes;

wherein said video display displays video images captured by a video camera of the vehicle in which said interior rearview mirror assembly is mounted and is viewed;

wherein said video camera comprises a rear back-up camera; and

wherein video images captured by said rear back-up camera are displayed by said video display when the driver of the vehicle, when operating the vehicle, selects a reverse gear.

56. The video mirror system of claim 55, wherein said back lit liquid crystal display comprises a thin film transistor liquid crystal display element.

57. The video mirror system of claim 55, wherein said electrochromic reflective element is at least about 20 percent transmitting to visible light incident at said rear portion of said electrochromic reflective element when in its bleached state.

58. The video mirror system of claim 57, wherein said electrochromic reflective element is at least about 60 percent reflective to visible light incident at said front portion of said electrochromic reflective element when in its bleached state.

59. The video mirror system of claim 57, wherein said plurality of white light emitting light emitting diodes comprises at least four white light emitting light emitting diodes.

60. The video mirror system of claim 55, wherein said electrochromic reflective element is at least about 25 percent transmitting to visible light incident at said rear portion of said electrochromic reflective element when in its bleached state.

61. The video mirror system of claim 60, wherein said electrochromic reflective element is at least about 60 percent reflective to visible light incident at said front portion of said electrochromic reflective element when in its bleached state.

62. The video mirror system of claim 55, wherein said electrochromic reflective element is at least about 60 percent reflective to visible light incident at said front portion of said electrochromic reflective element when in its bleached state.

63. A video mirror system for a vehicle, said video mirror system comprising:

an interior electrochromic rearview mirror assembly mountable at an interior portion of a vehicle, said interior rearview mirror assembly comprising an electrochromic reflective element, said reflective element having a front portion that faces generally towards the driver of the vehicle when said interior rearview mirror assembly is mounted in the vehicle, and having a rear portion that is generally opposite said front portion;

said reflective element comprising a transflective mirror reflector;

a display disposed to the rear of said rear portion of said reflective element, said display emitting light when actuated that passes through said transflective mirror reflector of said reflective element to be visible to a driver of the vehicle viewing said front portion of said reflective element;

wherein said video display comprises a back lit liquid crystal display that is back lit by at least four white light emitting light emitting diodes, and wherein said back lit liquid crystal display comprises a thin film transistor liquid crystal display element;

wherein said display comprises a video display and wherein said video display is operable to exhibit a display intensity as viewed by the driver of at least about 400 candelas per square meter when said interior rearview mirror assembly is mounted and is viewed in the vehicle;

wherein said video display displays video images captured by a video camera of the vehicle in which said interior rearview mirror assembly is mounted and is viewed;

wherein said video camera comprises a rear back-up camera;

wherein video images captured by said rear back-up camera are displayed by said video display when the driver of the vehicle, when operating the vehicle, selects a reverse gear;

wherein said electrochromic reflective element is at least about 20 percent transmitting to visible light incident at said rear portion of said electrochromic reflective element when in its bleached state; and

wherein said electrochromic reflective element is at least about 60 percent reflective to visible light incident at said front portion of said electrochromic reflective element when in its bleached state.