Patent ID: 7397205
Filing Date: 2008-07-08
Classification: G09G,H05B,Y02B

Abstract:
1. An illumination brightness and color control system, for adjusting the illumination brightness of a plurality of point light sources according to a target brightness and color value, comprising: a timing sampling controller, for adjusting a control timing and a sampling timing of each point light source, and generating a plurality of control timings, wherein each control timing is different; a light source driver, for generating a driving current in response to each control timing, so as to drive the corresponding point light sources, thus the point light sources emit lights at different times; a broadband light source monitor, for sensing and sampling the point light sources that emit lights at a specific time for a luminous intensity signal value in response to the sampling timing; a computing unit, for computing and acquiring a corrected current value according to the difference between the brightness/color value and the sensed luminous intensity signal value; and a current adjuster, for adjusting the driving current generated by the light source driver according to the corrected current value.