Patent ID: 7352951
Filing Date: 2008-04-01
Classification: G02B,Y10S

Abstract:
1. A method for displaying advertisements, comprising the steps of: providing at least one group of light emitting diodes, the at least one group of light emitting diodes comprising a plurality of light emitting diodes, each light emitting diode emitting light of a color distinctly different from the color of light emitted by another light emitting diode of the group of light emitting diodes; providing a receiving structure including at least one rigid enclosure or rigid sheet having a structural strength to bear compressive forces generated by pedestrian or vehicular traffic; providing at least one non-transparent cable for transmitting light, wherein each group of light emitting diodes is disposed at a first end of one of the at least one non-transparent cables and a second end of the at least one non-transparent cable is received by the receiving structure, the light emitting diodes being located remote from the receiving structure; controlling the intensity and color of the light emitted from the second end of the at least one non-transparent cable received by the receiving structure by selective forward biasing the individual light emitting diodes of each group of light emitting diodes with a pulse width modulated signal that generates a unique duty cycle for each individual light emitting diode; and wherein the color of the light emitted from the second end of each of the at least one non-transparent cables at the receiving structure is a combination of the colors of the light emitted from the plurality of light emitting diodes in the group of light emitting diodes disposed at the first end of the respective non-transparent cable and the emitted light is used in the display of an advertisement at the receiving structure in accordance with at least one of a pre-programmed design.