Patent ID: 9066384
Filing Date: 2015-06-23
Classification: H05B

Abstract:
1. A light emitting device control circuit device comprising: multiple drive control lines to perform a pulse current drive for a multiple light emitting devices respectively with a predetermined interval; and a pulse voltage supplying line to supply a pulse voltage which changes to ON state or OFF state to the multiple light emitting devices; wherein the multiple light emitting devices are driven with a predetermined delay with respect to each other during the ON state of the pulse voltage supplying line, wherein the light emitting devices form a light emitting unit, multiple light emitting units are provided, the multiple pulse voltage supplying lines are provided in correspondence with the number of the light emitting units, the multiple light emitting devices forming the multiple light emitting units are mutually connected to respective corresponding drive control lines, and the pulse voltages are sequentially supplied to the light emitting units with a predetermined delay from respective pulse voltage supplying lines, and illuminating periods of the light emitting same light emitting unit are so set as to occur with a small delay relative to and an overlap between one another, and driving of different light emitting units so proceeds that, after the driving of one light emitting unit is completed, the driving of a subsequent light emitting unit is started.