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PMIC: CP240x LCD Driver Family Slide 12
The output signaling for a multiplexed display is much more involved than that of the static display due to the shared relationship between the segments and the commons. The simple square wave output can no longer be used. The controller now needs to generate a multi-level output signal that when combined with the common generates the 0V DC biased stair stepped AC signal. This stair stepped signal is a time division multiplexed signal with the number of intervals within the frame is 2 times the mux mode. This example shows a 3 mux output and it can be seen that there are 6 intervals within the frame.
PTM Published on: 2011-05-13