During a given period of time, the landed duty cycle of a given pixel depends on the image content being displayed by that pixel. To enhance reliability, when coupled with the DLPC1438 controller, the DLP300S DMD operates at a maximum 78/22 duty cycle and a minimum of 22/78 duty cycle.

In the simplest case for example, when the system displays maximum full scale brightness on a given pixel for a given time period, that pixel operates very close to a 78/22 landed duty cycle during that time period. Likewise, when the system displays a pixel value of zero, the pixel operates very close to a 22/78 landed duty cycle.

The nominal landed duty cycle is additionally biased from the worst case above toward 50/50 during the time between print layers. The duty cycle approaches 50/50 when the illuminated print time is the same as the between layer time.