IP Library › Granted Patent US 12,296,750
Granted Patent B2
US 12,296,750 · App. 18/491,863 · Granted May 13, 2025

Vehicular vision system

Inventors: Michael J. Baur (Kentwood, MI); Rodney K. Blank (Zeeland, MI); Mark L Larson (Grand Haven, MI); Niall R. Lynam (Holland, MI)
Assignee: MAGNA ELECTRONICS INC.
B60R1/08B60R1/04B60R1/23B60R1/28G08G1/09623G08G1/09626G08G1/167B60R2001/1215B60R2001/1253B60R2300/70B60R2300/802B60R2300/806B60R2300/8066H04N7/181
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Quick Facts
Patent No.
US 12,296,750
App. No.
18/491,863
Granted
May 13, 2025
Kind
B2
Abstract

A vehicular vision system includes a video display screen disposed behind a transflective mirror reflector of an electrochromic mirror reflective element of an interior rearview mirror assembly. Image data captured by a rearward-viewing camera is provided to the mirror assembly as digital signals carried by a coaxial cable. Electronic circuitry of the mirror assembly includes (i) auto dimming circuitry and (ii) video processing circuitry. The video display screen (i) displays at a left display region video images derived from captured image data to display a scene occurring in a left side lane, (ii) displays at a right display region video images derived from captured image data to display a scene occurring in a right side lane and (iii) displays at a middle display region video images derived from captured image data to display a scene occurring rearward of the vehicle in the lane the equipped vehicle is travelling in.

Claims (95)

1. A vehicular vision system, said vehicular vision system comprising:

a video display screen operable to display video images;

wherein said video display screen is disposed in an interior electrochromic rearview mirror assembly of a vehicle equipped with said vehicular vision system;

wherein said video display screen is disposed behind a transflective mirror reflector of a transflective electrochromic mirror reflective element of said interior electrochromic rearview mirror assembly;

wherein video images displayed at said video display screen are viewable by a driver of the equipped vehicle when the driver is driving the equipped vehicle;

wherein, when said video display screen is not operating to display video images, presence of said video display screen behind the transflective mirror reflector of the transflective electrochromic mirror reflective element is covert;

wherein, when said video display screen is not operating to display video images, mirror reflectance functionality is available to the driver at a region of the transflective mirror reflector of the transflective electrochromic mirror reflective element of said interior electrochromic rearview mirror assembly that the video display screen is disposed behind;

wherein said video display screen comprises a left display region at a left portion of said video display screen and a right display region at a right portion of said video display screen;

wherein said video display screen comprises a middle display region at a middle portion of said video display screen;

wherein said middle display region spans between said left display region and said right display region;

a rearward-viewing color video camera disposed at a rear portion of the equipped vehicle;

said rearward-viewing color video camera comprising a CMOS imaging array sensor;

wherein image data captured by said rearward-viewing color video camera is provided by said rearward-viewing color video camera to said interior electrochromic rearview mirror assembly as digital signals carried by a coaxial cable connecting said rearward-viewing color video camera with said interior electrochromic rearview mirror assembly;

wherein said interior electrochromic rearview mirror assembly comprises electronic circuitry;

wherein the electronic circuitry of said interior electrochromic rearview mirror assembly comprises (i) auto dimming circuitry operable to electrically adjust reflectivity of the transflective electrochromic mirror reflective element and (ii) video processing circuitry operable to process image data captured by said rearward-viewing color video camera carried as digital signals by the coaxial cable connecting said rearward-viewing color video camera with said interior electrochromic rearview mirror assembly; and

wherein, during forward travel of the equipped vehicle, and responsive to processing of image data at the video processing circuitry, said video display screen is operable to (i) display at said left display region video images derived, at least in part, from image data captured by said rearward-viewing color video camera in order to display a scene occurring in a left side traffic lane at a left side of the equipped vehicle where another vehicle may overtake the equipped vehicle, (ii) display at said right display region video images derived, at least in part, from image data captured by said rearward-viewing color video camera in order to display a scene occurring in a right side traffic lane at a right side of the equipped vehicle where another vehicle may overtake the equipped vehicle and (iii) display at said middle display region video images derived, at least in part, from image data captured by said rearward-viewing color video camera in order to display a scene occurring rearward of the equipped vehicle in the traffic lane the equipped vehicle is travelling in.

2. The vehicular vision system of claim 1 , wherein said video display screen comprises a thin film transistor liquid crystal screen, and wherein said thin film transistor liquid crystal screen is backlit by at least one white light-emitting light emitting diode.

3. The vehicular vision system of claim 2 , wherein said thin film transistor liquid crystal screen is backlit with a backlighting intensity of at least 30,000 candelas/square meter.

4. The vehicular vision system of claim 2 , comprising dynamic contrast control of said video display screen, and wherein said video display screen is operable to display multiple video image frames, and wherein said dynamic contrast control is operable to increase contrast within individual video image frames.

5. The vehicular vision system of claim 2 , wherein the video processing circuitry comprise a video processor operable to provide on screen display capability.

6. The vehicular vision system of claim 2 , wherein the video processing circuitry comprise a video processor operable to at least partially control display intensity of said video display screen.

7. The vehicular vision system of claim 1 , wherein said rearward-viewing color video camera is centrally disposed at the rear portion of the equipped vehicle.

8. The vehicular vision system of claim 7 , wherein said rearward-viewing color video camera has a field of view of at least 180 degrees.

9. The vehicular vision system of claim 8 , wherein, when said video display screen is operating to display video images, said video display screen provides a contrast ratio of greater than 350:1.

10. The vehicular vision system of claim 8 , wherein said video display screen is operable to display video images having an intensity of at least 1,000 candelas per square meter as viewed by the driver through the transflective mirror reflector of the transflective electrochromic mirror reflective element of said interior electrochromic rearview mirror assembly.

11. The vehicular vision system of claim 1 , wherein, during forward travel of the equipped vehicle, and when said video display screen displays the scene occurring at the left side traffic lane at said left display region of said video display screen, said video display screen displays an icon to enhance the driver's cognitive awareness of the displayed scene.

12. The vehicular vision system of claim 1 , wherein said coaxial cable comprises a CAT-5 coaxial cable.

13. The vehicular vision system of claim 1 , wherein said rearward-viewing color video camera has a field of view of at least 180 degrees.

14. The vehicular vision system of claim 13 , wherein auto dimming circuitry and video processing circuitry are disposed on a common printed circuit board.

15. The vehicular vision system of claim 14 , wherein said rearward-viewing color video camera is centrally disposed at the rear portion of the equipped vehicle.

16. The vehicular vision system of claim 15 , wherein said rearward-viewing color video camera comprises a rear backup camera.

17. A vehicular vision system, said vehicular vision system comprising:

a video display screen operable to display video images;

wherein said video display screen is disposed in an interior electrochromic rearview mirror assembly of a vehicle equipped with said vehicular vision system;

wherein said video display screen is disposed behind a transflective mirror reflector of a transflective electrochromic mirror reflective element of said interior electrochromic rearview mirror assembly;

wherein video images displayed at said video display screen are viewable by a driver of the equipped vehicle when the driver is driving the equipped vehicle;

wherein, when said video display screen is not operating to display video images, presence of said video display screen behind the transflective mirror reflector of the transflective electrochromic mirror reflective element is covert;

wherein, when said video display screen is not operating to display video images, mirror reflectance functionality is available to the driver at a region of the transflective mirror reflector of the transflective electrochromic mirror reflective element of said interior electrochromic rearview mirror assembly that the video display screen is disposed behind;

wherein said video display screen comprises a left display region at a left portion of said video display screen and a right display region at a right portion of said video display screen;

wherein said video display screen comprises a middle display region at a middle portion of said video display screen;

wherein said middle display region spans between said left display region and said right display region;

a rearward-viewing color video camera disposed at a rear portion of the equipped vehicle;

said rearward-viewing color video camera comprising a CMOS imaging array sensor;

wherein image data captured by said rearward-viewing color video camera is provided by said rearward-viewing color video camera to said interior electrochromic rearview mirror assembly as digital signals carried by a shielded twisted pair wire connecting said rearward-viewing color video camera with said interior electrochromic rearview mirror assembly;

wherein said interior electrochromic rearview mirror assembly comprises electronic circuitry;

wherein the electronic circuitry of said interior electrochromic rearview mirror assembly comprises (i) auto dimming circuitry operable to electrically adjust reflectivity of the transflective electrochromic mirror reflective element and (ii) video processing circuitry operable to process image data captured by said rearward-viewing color video camera carried as digital signals by the shielded twisted pair wire connecting said rearward-viewing color video camera with said interior electrochromic rearview mirror assembly; and

wherein, during forward travel of the equipped vehicle, and responsive to processing of image data at the video processing circuitry, said video display screen is operable to (i) display at said left display region video images derived, at least in part, from image data captured by said rearward-viewing color video camera in order to display a scene occurring in a left side traffic lane at a left side of the equipped vehicle where another vehicle may overtake the equipped vehicle, (ii) display at said right display region video images derived, at least in part, from image data captured by said rearward-viewing color video camera in order to display a scene occurring in a right side traffic lane at a right side of the equipped vehicle where another vehicle may overtake the equipped vehicle and (iii) display at said middle display region video images derived, at least in part, from image data captured by said rearward-viewing color video camera in order to display a scene occurring rearward of the equipped vehicle in the traffic lane the equipped vehicle is travelling in.

18. The vehicular vision system of claim 17 , wherein said video display screen comprises a thin film transistor liquid crystal screen, and wherein said thin film transistor liquid crystal screen is backlit by at least one white light-emitting light emitting diode.

19. The vehicular vision system of claim 18 , wherein said thin film transistor liquid crystal screen is backlit with a backlighting intensity of at least 30,000 candelas/square meter.

20. The vehicular vision system of claim 18 , comprising dynamic contrast control of said video display screen, and wherein said video display screen is operable to display multiple video image frames, and wherein said dynamic contrast control is operable to increase contrast within individual video image frames.

21. The vehicular vision system of claim 18 , wherein the video processing circuitry comprise a video processor operable to provide on screen display capability.

22. The vehicular vision system of claim 18 , wherein the video processing circuitry comprise a video processor operable to at least partially control display intensity of said video display screen.

23. The vehicular vision system of claim 17 , wherein said rearward-viewing color video camera is centrally disposed at the rear portion of the equipped vehicle.

24. The vehicular vision system of claim 23 , wherein said rearward-viewing color video camera has a field of view of at least 180 degrees.

25. The vehicular vision system of claim 17 , wherein, during forward travel of the equipped vehicle, and when said video display screen displays the scene occurring at the left side traffic lane at said left display region of said video display screen, said video display screen displays an icon to enhance the driver's cognitive awareness of the displayed scene.

26. The vehicular vision system of claim 25 , wherein, when said video display screen is operating to display video images, said video display screen provides a contrast ratio of greater than 350:1.

27. The vehicular vision system of claim 25 , wherein said video display screen is operable to display video images having an intensity of at least 1,000 candelas per square meter as viewed by the driver through the transflective mirror reflector of the transflective electrochromic mirror reflective element of said interior electrochromic rearview mirror assembly.

28. The vehicular vision system of claim 17 , wherein said shielded twisted pair wire comprises a CAT-3 shielded twisted pair wire.

29. The vehicular vision system of claim 17 , wherein said rearward-viewing color video camera has a field of view of at least 180 degrees.

30. The vehicular vision system of claim 29 , wherein auto dimming circuitry and video processing circuitry are disposed on a common printed circuit board.

31. The vehicular vision system of claim 30 , wherein said rearward-viewing color video camera is centrally disposed at the rear portion of the equipped vehicle.

32. The vehicular vision system of claim 31 , wherein said rearward-viewing color video camera comprises a rear backup camera.

33. A vehicular vision system, said vehicular vision system comprising:

a video display screen operable to display video images;

wherein said video display screen is disposed in an interior electrochromic rearview mirror assembly of a vehicle equipped with said vehicular vision system;

wherein said video display screen is disposed behind a transflective mirror reflector of a transflective electrochromic mirror reflective element of said interior electrochromic rearview mirror assembly;

wherein video images displayed at said video display screen are viewable by a driver of the equipped vehicle when the driver is driving the equipped vehicle;

wherein, when said video display screen is not operating to display video images, presence of said video display screen behind the transflective mirror reflector of the transflective electrochromic mirror reflective element is covert;

wherein, when said video display screen is not operating to display video images, mirror reflectance functionality is available to the driver at a region of the transflective mirror reflector of the transflective electrochromic mirror reflective element of said interior electrochromic rearview mirror assembly that the video display screen is disposed behind;

wherein said video display screen comprises a left display region at a left portion of said video display screen and a right display region at a right portion of said video display screen;

wherein said video display screen comprises a middle display region at a middle portion of said video display screen;

wherein said middle display region spans between said left display region and said right display region;

a rearward-viewing color video camera disposed at a rear portion of the equipped vehicle;

said rearward-viewing color video camera comprising a CMOS imaging array sensor;

wherein image data captured by said rearward-viewing color video camera is provided by said rearward-viewing color video camera to said interior electrochromic rearview mirror assembly as digital signals;

wherein said interior electrochromic rearview mirror assembly comprises electronic circuitry;

wherein the electronic circuitry of said interior electrochromic rearview mirror assembly comprises (i) auto dimming circuitry operable to electrically adjust reflectivity of the transflective electrochromic mirror reflective element and (ii) video processing circuitry operable to process image data captured by said rearward-viewing color video camera carried as digital signals from said rearward-viewing color video camera to said interior electrochromic rearview mirror assembly;

wherein auto dimming circuitry and video processing circuitry are disposed on a common printed circuit board; and

wherein, during forward travel of the equipped vehicle, and responsive to processing of image data at the video processing circuitry, said video display screen is operable to (i) display at said left display region video images derived, at least in part, from image data captured by said rearward-viewing color video camera in order to display a scene occurring in a left side traffic lane at a left side of the equipped vehicle where another vehicle may overtake the equipped vehicle, (ii) display at said right display region video images derived, at least in part, from image data captured by said rearward-viewing color video camera in order to display a scene occurring in a right side traffic lane at a right side of the equipped vehicle where another vehicle may overtake the equipped vehicle and (iii) display at said middle display region video images derived, at least in part, from image data captured by said rearward-viewing color video camera in order to display a scene occurring rearward of the equipped vehicle in the traffic lane the equipped vehicle is travelling in.

34. The vehicular vision system of claim 33 , wherein said video display screen is operable to display video images having an intensity of at least 1,000 candelas per square meter as viewed by the driver through the transflective mirror reflector of the transflective electrochromic mirror reflective element of said interior electrochromic rearview mirror assembly.

35. The vehicular vision system of claim 34 , wherein said video display screen comprises a thin film transistor liquid crystal screen, and wherein said thin film transistor liquid crystal screen is backlit by at least one white light-emitting light emitting diode and wherein said thin film transistor liquid crystal screen is backlit with a backlighting intensity of at least 30,000 candelas/square meter.

36. The vehicular vision system of claim 34 , wherein said digital signals are carried by a coaxial cable connecting said rearward-viewing color video camera with said interior electrochromic rearview mirror assembly.

37. The vehicular vision system of claim 36 , wherein said rearward-viewing color video camera is centrally disposed at the rear portion of the equipped vehicle.

38. The vehicular vision system of claim 37 , wherein the video processing circuitry comprise a video processor operable to provide on screen display capability.

39. The vehicular vision system of claim 37 , wherein the video processing circuitry comprise a video processor operable to at least partially control display intensity of said video display screen.

40. The vehicular vision system of claim 36 , wherein said rearward-viewing color video camera has a field of view of at least 180 degrees.

41. The vehicular vision system of claim 40 , wherein said coaxial cable comprises a CAT-5 coaxial cable.

42. The vehicular vision system of claim 40 , wherein said rearward-viewing color video camera comprises a rear backup camera.

43. The vehicular vision system of claim 34 , wherein said digital signals are carried by a twisted wire pair connecting said rearward-viewing color video camera with said interior electrochromic rearview mirror assembly.

44. The vehicular vision system of claim 43 , wherein said rearward-viewing color video camera is centrally disposed at the rear portion of the equipped vehicle.

45. The vehicular vision system of claim 44 , wherein said twisted wire pair comprises a CAT-3 twisted wire pair.

46. The vehicular vision system of claim 43 , wherein said rearward-viewing color video camera has a field of view of at least 180 degrees.

47. The vehicular vision system of claim 43 , wherein the video processing circuitry comprise a video processor operable to provide on screen display capability.

48. The vehicular vision system of claim 43 , wherein the video processing circuitry comprise a video processor operable to at least partially control display intensity of said video display screen.

49. The vehicular vision system of claim 33 , wherein, during forward travel of the equipped vehicle, and when said video display screen displays the scene occurring at the left side traffic lane at said left display region of said video display screen, said video display screen displays an icon to enhance the driver's cognitive awareness of the displayed scene.

Continuity (10)
Continuation 17655384 · Mar 18, 2022
Continuation 17247697 · Dec 21, 2020
Continuation 16413694 · May 16, 2019
Continuation 16105162 · Aug 20, 2018
Continuation 15784228 · Oct 16, 2017
Continuation 14719446 · May 22, 2015
Continuation 13393384
Provisional Application 61238862 · Sep 1, 2009
Provisional Application 61351513 · Jun 4, 2010
Related Publication 20240042933A1 · Feb 8, 2024
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