APPARATUS AND METHOD FOR CONTROLLING WHITE BALANCE OF LASER DISPLAY SYSTEM

摘要

The present invention relates to an apparatus and a method capable of controlling the white balance of a laser display system in consideration of the properties of laser beams. The apparatus comprises: a thermal sensing unit for sensing the current temperature of a laser beam source; a detection unit for measuring the optical output intensity of the laser beam source; a storage unit for storing a reference value including the allowable current range and the optical output intensity according to temperature; a search unit for searching the allowable current range corresponding to the sensed current temperature or the reference value corresponding to the measured optical output intensity; a control value generating unit for generating a control value by comparing the measurement value of the optical output intensity obtained from the detection unit with the reference value obtained by the search unit; a laser beam source driving unit for controlling the optical output intensity of the corresponding laser beam source according to the current value within the allowable current range or the generated control value; and a control unit for controlling the search unit, the control value generating unit and the laser beam source driving unit.