The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.
The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.
Patent No.:
Date of Patent:
Feb. 18, 2014
Filed:
Dec. 02, 2011
Niall R. Lynam, Holland, MI (US);
John O. Lindahl, Fruitport, MI (US);
Niall R. Lynam, Holland, MI (US);
John O. Lindahl, Fruitport, MI (US);
Donnelly Corporation, Holland, MI (US);
Abstract
A video mirror system for a vehicle includes an interior rearview mirror assembly with an electrochromic reflective element. The reflective element has an electrochromic medium disposed between a first substrate and a second substrate and has a transflective third-surface mirror reflector. A video display is disposed to the rear of the reflective element and emits light when actuated that passes through the transflective mirror reflector. The video display includes a thin film transistor video screen that is back lit by a plurality of white light emitting light emitting diodes that are operable by a control. The control includes DC to DC conversion circuitry that includes circuitry for converting an ignition voltage of the equipped vehicle to a lower voltage that is closer to the forward voltage applied across individual white light emitting light emitting diodes of the plurality of white light emitting light emitting diodes than the ignition voltage.