| 摘要 |
PROBLEM TO BE SOLVED: To provide an LED lighting driving circuit which requires a display data memory 10 for only one screen by writing and reading display data to and out of the display data memory 10 simultaneously in parallel. SOLUTION: Disclosed is the LED lighting driving circuit of a dynamic lighting system which converts display data sent in series into parallel signals by lines by a shift register 3 and sends the parallel signals to a data input of a dot matrix type LED panel 1. The LED lighting driving circuit has the display data memory 10 equipped with multi-digit line memories 10a (flip-flop circuit) for a plurality of lines, a memory writing decoder 9 which writes the display data converted into the parallel signals by the shift register 3 to one-line memories 10a selected in order in the display data memory 10, and a memory reading decoder 11 which reads display data held in one-line memories 10a selected in order in the display data memory 10 and sends them to the data input of the LED panel 1. COPYRIGHT: (C)2007,JPO&INPIT
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