The invention provides a display medium having a dimmer layer which comprises at least two kinds of charged mobile fine particles. Each of the at least two kinds of the charged mobile fine particles respectively has different coloration and a different mobility, and the charged mobile fine particles of at least one kind of the at least two kinds show coloration when in a dispersed state. The invention further provides a display device having an electric field forming unit and the dimmer layer. The invention further provides a display method which uses the display medium and includes putting the charged mobile fine particles of at least one of the kinds being dispersed while having other charged mobile fine particles not being dispersed.

 
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