As shown in product comparison table, GLV modules can be operated in one of two modes: (a) pulse-width-modulation or “PWM”-mode and (b) amplitude modulation or “AMP”-mode. PWM-mode uses the timed switching capability of the GLV in conjunction with a reduced selection of amplitude levels. AMP-mode offers complete 10-bit amplitude flexibility but precludes PWM timed switching.
For example, in PWM-mode, the F1088 instructs each pixel to one of three unique 10-bit amplitude levels updating at one of three corresponding unique 8-bit delay values. In AMP-mode, the F1088 instructs each pixel to any 10-bit amplitude level, but all updates occur simultaneously at the column strobe. The maximum data rate for AMP-mode is typically lower than PWM-mode due to the increased data transmission.
The PWM- and AMP-modes allow GLV operation to be tailored to best suit the application. For example, PWM-mode is best suited for exposing binary (threshold) media since it allows precise edge timing without the need for deep gray-scale control. Conversely, AMP-mode is best suited for applications like display, where fine intensity control is needed, but edge timing is not as critical.