Electrophoretic display device
AssigneeXerox Corporation
InventorsNaveen Chopra, Jurgen H. Daniel, Brent S. Krusor, San-Ming Yang, Peter M. Kazmaier, Gabriel Iftime
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Abstract
An electrophoretic display device includes a multiplicity of individual reservoirs containing a display medium between conductive substrates, at least one of which is transparent, wherein the display medium includes one or more set of colored particles in a dielectric fluid, and wherein the multiplicity of individual reservoirs are defined by a unitary grid whose walls segregate the reservoirs. The gird may be formed via photolithography or from a master stamp derived from a mold of the grid pattern.
Claims18
A method of forming an electrophoretic display device, comprising:
- forming a film comprised of a material of a grid;
- exposing the film through a photomask and developing the film to form a grid having a desired grid pattern defining individual reservoirs;
- with the grid having on one side a conductive substrate, filling a multiplicity of the individual reservoirs of the grid with a display medium comprised of one or more set of colored particles in a dielectric fluid, the display medium having an electrical conductivity of about 10−11 to about 10−15 S/m, and
- adhering an additional conductive substrate to an open side of the grid.
Dependencies are inferred from the claim text.