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Light emitting diode display system
   
Document Number
US Patent 7473020
Issued Date
January 6, 2009
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Abstract
A light emitting diode (LED) display, including: drive circuitry; a control processor; a frame including two edges; multiple cables extending rigidly between the two edges of the frame; and at least one pixel module coupled to each cable. Each cable includes a power wire coupled to the drive circuitry, a ground wire, and at least one data bus wire coupled to the control circuitry. Each pixel module includes: a power electrode coupled to the power wire of the coupled cable; a ground electrode coupled to the ground wire of the coupled cable; a bus electrode coupled to the data bus wire of the coupled cable; an LED light source; and pixel control circuitry coupled to the electrodes and the LED light source. The pixel control circuitry is adapted to drive the LED light source with a drive current based on a control signal received from bus electrode.
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Number of Claims:
35
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Published
January 6, 2009
Application Number
11/483,026
Filed
July 7, 2006
US Classification
362/612   362/559
Int'l Classification
F21V   7/04   (20060101)  
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USPTO Field of Search
315/169.11   315/12   315/13   315/14   315/15   315/16   315/17   315/18   315/19   315/20   315/21   315/22   315/23   315/24   315/25   315/26   315/27   315/28   315/29   315/30   315/31.3   315/291   362/251   362/252   362/251   362/252   362/251   362/252   362/555   362/559   362/561   349/150   349/151  
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