RE: MAGNA ELECTRONICS INC Patent11 Nov 2019 17:46
[0039] The present invention thus provides a display at a windshield area of the vehicle, with the display being at least partially transparent or non-discernible in its transmissive or transparent state (such as when it is deactivated). When activated (or changed to its display state), the display unit may display images captured by one or more cameras of the vehicle, such as a rearward viewing camera and/or such as multiple cameras of a surround view system of the vehicle. The display unit may be activated in response to a determination that the driver of the vehicle is looking at the display area, so that the displayed images are only displayed when the driver wants to see them. When driving the vehicle forwardly, the driver may only occasionally want to view rearward of the vehicle, so the display unit is deactivated except when a determination is made that the driver is looking at or towards the display area. Optionally, the display may comprise a reflective element that, when in its active or non-transparent state, provides a reflector to allow the driver to view rearwardly via reflection off of the reflector of the display.
[0040] Optionally, the transparent display and focal/gaze detection system of the present invention may be used for a navigation screen, whereby the navigation screen may be activated and visible or viewable when the system determines that the driver is looking at the navigation screen display location but otherwise would not be activated and viewable. Optionally, the navigation screen (even when not being viewed and thus not viewable) would automatically activate when the vehicle is approaching a turn or exit or the like on the programmed route. Optionally, the system may include two transparent displays, with a rearview display (functioning like a rearview mirror and operable to display exterior images when viewed by the driver) above a navigation display (functioning as a navigation screen to show a map or driving directions or the like when that area is viewed by the driver), with the system determining which location the driver is looking at and activating the appropriate display according to the determined driver's gaze.
[0041] Thus, during normal driving when the driver is viewing ahead of the vehicle while driving the vehicle in a forward direction along a road, neither screen may be activated and the driver can view through the entire windshield. When the driver wants to view rearward (such as during a reversing maneuver or when making a lane change or the like), the driver may gaze at the “rearview mirror” location and the first display may be activated to display the rearward view or the like (optionally, and desirably, the system may automatically change the display to display the rearward view during a reversing maneuver of the vehicle). Also, when the driver wants to view a map or driving instruction or other navigation information, the driver may gaze at a “navigation screen” location (which may b