Imaging systems with fluidic color filter elements

An imaging sensor comprising:

• a substrate;
• a plurality of photodiodes in the substrate;
• a glass layer positioned above the substrate;
• walls that are interposed between the substrate and the glass layer, wherein the walls define color filter chambers;
• a ground electrode that covers all of the photodiodes in the imaging sensor, wherein the ground electrode is interposed between the walls and the glass layer;
• a first insulating layer interposed between the walls and the ground electrode;
• a plurality of independently addressable patterned electrodes that are interposed between the walls and the substrate, wherein voltages are applied to the plurality of independently addressable patterned electrodes to position color filter fluid within the color filter chambers;
• and
• a second insulating layer interposed between the walls and the plurality of independently addressable patterned electrodes.