Patent ID: 7126622

Claim:
A driving IC for driving elements, comprising: a drive circuit that produces drive signals for driving n elements based on n data signals constituting a group of data signals; x-stage latch circuits that each store one of x groups of data signals; a delay control circuit that produces, by delaying a one-input timing signal or two-input timing signals, y lighting timing signals for determining timing with which data signals corresponding to the individual elements are fed to the drive circuit; and a select circuit including a data signal selector that selects the data signals corresponding to the individual elements from the x-stage latch circuits and a timing signal selector that selects lighting timing signals corresponding to the individual elements from the y lighting timing signals produced by the delay control circuit, the select circuit feeding, for each of the elements separately, the data signals selected by the data signal selector to the drive circuit in synchronism with the lighting timing signals selected by the timing signal selector.