摘要 |
A display device comprising a plurality of independently addressable pixels ( 1 ). Each pixel comprises: a first substrate ( 6 ); a second substrate ( 7 ); a polyelectrochromic material ( 2 ) disposed between said first substrate ( 6) and said second substrate ( 7 ). At least two independent electrodes ( 3, 4 ) are associated with said first substrate ( 6 ). An independent counter-electrode ( 5 ) is associated with said second substrate ( 7 ). Each respective electrode is connected to an independently controllable voltage source. The display device has means for controlling the voltage applied to each respective electrode ( 3, 4, 5 ) for producing non-uniform electric fields in each pixel ( 1 ), for causing partial switching of the polyelectrochromic material ( 2 ) from a first color state to a second color state to generate an area ratio defined pixel color state.
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