System and method for producing white light using a combination of phosphor-converted white LEDs and non-phosphor-converted color LEDs

A method for operating a light system comprising:

• providing drive signals to a light source that includes at least one phosphor-converted white light emitting diode (LED) and at least one non-phosphor-converted color LED to generate white light;
• detecting the white light that is generated in response to the drive signals;
• generating feedback signals in response to the detected light;
• and
• adjusting the drive signals that are provided to the light source in response to the feedback signals.

A light system comprising:

• an LCD panel;
• a light source, in optical communication with the LCD panel, which includes at least one phosphor-converted white light emitting diode (LED) and at least one non-phosphor-converted color LED;
• and
• a spectral feedback control system configured to drive the light source to output white light, to detect the white light that is output from the light source, and to adjust the white light that is output from the light source in response to the light detection.