| 摘要 |
PROBLEM TO BE SOLVED: To provide an illumination device and driving method therefor, capable of reducing flickering even after reduction in power consumption, while maintaining looking-brightness.SOLUTION: The illumination device includes: a light-emitting section with a light-emitting element; a driving section that supplies electric power to the light-emitting section to drive the light-emitting section; a pulse signal supply section that generates pulse signals P31, P32, P33, .... of predetermined frequencies and supplies the signals to the driving section; and a pulse signal control section that controls the pulse signals P31, P32, P33, .... so that duty ratios of the pulse signals P31, P32, P33, .... are repetitively changed continuously within the range from the maximum to a predetermined value. |
