US 2006/0050362 A1 · Eletrophoretic display

Abstract

An electrophoretic display comprises a pixel (10) which has a pixel volume (PV) comprising a reservoir volume (RV) and an image volume (IV). Different types of particles (Pa, Pb, Pc) which have different colors and different electrophoretic mobility's are present in the pixel volume (PV). An amount of the particles (Pa, Pb, Pc) present in the image volume (IV) determines a visible color of the pixel. Select electrodes (SE1, SE2) generate in the reservoir volume (RV) a select electric field (SF) which separates the different types of particles (Pa, Pb, Pc) in different sub-volumes (SVa, SVb, SVc) in the reservoir volume (RV). Fill electrodes (FE1, FE2) generate a fill electric field (FF) to move the different types of particles (Pa, Pb, Pc) from the different sub-volumes (SVa, SVb, SVc) into the image volume (IV).

Claims21

Dependent claims

An electrophoretic display (1) with a pixel (10) comprising:

a reservoir volume (RV) and an image volume (PV),
different types of particles (Pa, Pb, Pc) having different colors and different electrophoretic mobilities, wherein the particles (Pa, Pb, Pc) determine a visible color of the pixel (10) when present in the image volume (IV), and wherein the particles (Pa, Pb, Pc) do not contribute to the visible color of the pixel (10) when present in the reservoir volume (RV),
select electrodes (SE1, SE2) for generating in the reservoir volume (RV) a select electric field (SF) for separating the different types of particles (Pa, Pb, Pc) in different sub-volumes (SVa, SVb, SVc) in the reservoir volume (RV), and
at least one fill electrode (FE1, FE2) for generating a fill electric field (FF) to move the different types of particles (Pa, Pb, Pc) from the sub-volumes (SVa, SVb, SVc) into the image volume (IV).

1 more element

Dependencies are inferred from the claim text.

Eletrophoretic display

Life of this patent

Eletrophoretic display

Life of this patent

Abstract

Claims21