ILLUMINATING APPARATUS AND METHOD FOR DRIVING THEREOF

摘要

PURPOSE: A lighting device and a driving method are provided to control the color temperature and the brightness of light emitted from the lighting device by using a few driving signal. CONSTITUTION: A driving current(DR) has pulse width(W) and current strength. The pulse width is determined corresponding to brightness of light emitted from a lighting device. The current strength is determined corresponding to color temperature of the light.