Patent ID: 6750829
Filing Date: 2004-06-15
Classification: G06F,G09F,G09G

Abstract:
A method of making a mobile sign for temporary placement along roadways for directing messages to vehicular traffic on said roadways, the method comprising:arranging a multiplicity of light emitting diodes in at least one matrix and orienting each light emitting diodes in a common direction, placing the at least one matrix in an enclosure portion, attaching a transparent front panel to the enclosure portion, with the at least one matrix of light emitting diodes directed toward said transparent front panel and spaced from said transparent front panel, making the enclosure portion and transparent front panel weather resistant, operably connecting control circuitry to the multiplicity of light emitting diodes for providing changeable messages formed by selective lighting of the multiplicity of light emitting diodes, applying paint to an exteriorly facing surface of the transparent panel to define a plurality of unpainted windows, with said unpainted windows positioned directly in front of at least individual ones of the multiplicity of light emitting diodes, and mounting the enclosure portion and control circuity on a wheeled vehicle.