Vehicular video mirror system

  • US 10,131,280 B2
  • Filed: 10/09/2017
  • Issued: 11/20/2018
  • Est. Priority Date: 03/02/2000
  • Status: Active Grant
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First Claim
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1. A video mirror system suitable for use in 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 mirror case and a reflective element, said reflective element having a front portion that faces generally towards a driver of the vehicle when said interior rearview mirror assembly is mounted at the interior portion of the vehicle, and having a rear portion that is generally opposite said front portion;

    a video display device;

    wherein said video display device is disposed in said mirror case;

    wherein said video display device is operable to display video images that are viewable by the driver of the vehicle when said interior rearview mirror assembly is mounted at the interior portion of the vehicle;

    wherein said video display device comprises at least one of (i) a multi-pixel light emitting diode (LED) display, (ii) an organic light emitting diode (OLED) display, (iii) a liquid crystal display backlit by a plurality of white light emitting light emitting diodes, (iv) a thin film transistor multi-pixel liquid crystal display and (v) a multi-pixel organic electroluminescent display;

    wherein said reflective element comprises a transflective mirror reflector and said video display device is fixedly disposed to the rear of said rear portion of said reflective element, and wherein the presence of said video display device to the rear of said rear portion of said reflective element is covert when said interior rearview mirror assembly is mounted at the interior portion of the vehicle and is viewed in the vehicle by the driver with the video display device not activated, and wherein said video display device, when activated, displays video images viewable through said transflective mirror reflector by the driver when said interior rearview mirror assembly is mounted at the interior portion of the vehicle and is viewed in the vehicle;

    wherein said interior rearview mirror assembly comprises an on-screen display controller and wherein said on-screen display controller is operable to receive a video signal from a camera disposed at the vehicle;

    wherein, responsive to receipt of said video signal, said on-screen display controller is operable to generate a video feed to said video display device;

    wherein said camera has a field of view exterior of the vehicle, and wherein, when said interior rearview mirror assembly is mounted at the interior portion of the vehicle, said video display device is operable to display video images captured by said camera when the driver is driving the vehicle;

    wherein said on-screen display controller is operable to overlay a graphic overlay onto a video signal received from said camera and wherein said video feed generated by said on-screen display controller includes said graphic overlay;

    wherein said video display device comprises a metallic enclosure and wherein said metallic enclosure is electrically grounded when said interior rearview mirror assembly is mounted at the interior portion of the vehicle;

    wherein display intensity of video images display by said video display device is adjustable responsive to an ambient light sensor;

    wherein, responsive to ambient light detection by the ambient light sensor, display intensity of video images displayed by said video display device increases during daytime lighting conditions and decreases during nighttime lighting conditions;

    wherein display intensity of video images displayed by said video display device is at least one of (i) continuously adjusted responsive to the ambient light sensor and (ii) step adjusted responsive to the ambient light sensor; and

    wherein said video display device is operable to display video images having a driver-viewable display luminance of at least 500 candelas per square meter as viewed through said transflective mirror reflector by the driver viewing the interior rearview mirror assembly mounted at the interior portion of the vehicle.

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