**3. Time-fluctuations of the phase: Effects on the digital hologram efficiency**

Experimental evidence of the time-fluctuations of the phase phenomenon, observed when working with LCoS displays (Lizana et al., 2008b; Lizana et al., 2010), are provided in this section. This phenomenon originates from the electrical addressing schemes (Hermerschmidt et al., 2007) applied in LCoS displays, and it may notably degrade the performance of LCoS displays when generating digital holograms (Lizana et al., 2008b). To provide greater insight into this topic, this section also includes a study of the timefluctuations of the phase effects on the efficiency of diverse basic digital holograms generated with the TNLCoS display.
