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Electronic Display Panels for Automobiles

  • US 20080236007A1
  • Filed: 06/21/2007
  • Published: 10/02/2008
  • Est. Priority Date: 01/07/2005
  • Status: Abandoned Application
First Claim
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1. A display system for showing electronic messages, the display system comprising:

  • a vehicle having at least a primary battery;

    a display unit, mounted on roof of the vehicle, configured for showing electronic messages that can be illuminated with variable intensity; and

    a power management device coupled the primary battery to the display unit, wherein the power management device is configured to determine an appropriate battery to energize the display unit.

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