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In order to reduce pin counts of displays and the controllers used to drive them a multiplex scheme is used. Unlike the static mode, a multiplexed display connects multiple segments together as shown in the figure. Here four segments are connected together which is called 4-mux mode. In addition, a multiplexed mode display also has multiple common references and the number of commons is equal to the mux mode. In the figure, there are 4 commons. Each of the four segments that are connected to a single pin such as 8A, 8B, 8C, and DP8, is referenced to one of the four commons. In the figure DP8 is referenced to COM0 whereas 8C is referenced to COM1.
PTM Published on: 2011-05-13

