摘要:
Provided is an electrophoretic display medium, comprising one or more set of colored particles in a dielectric fluid, and wherein at least one of the one or more set of particles comprise particles having thereon at least one polyelectrolyte coating.
摘要:
The present invention provides an electrophoretic display device (65), comprising a multiplicity of individual reservoirs (61) containing a display medium (60) between conductive substrates (56), at least one of which is transparent, wherein the display medium comprises one or more set of colored particles in a dielectric fluid, wherein the display medium has an electrical conductivity of about 10 -11 to about 10 -15 S/m, and wherein the multiplicity of individual reservoirs are defined by a unitary grid whose walls segregate the reservoirs. The invention further provides a method of forming an electrophoretic display device (65), comprising forming a mold having a grid pattern defining individual reservoirs; forming a master stamp in the mold, and removing the master stamp from the mold; forming a grid by filling the master stamp with a material of the grid; and filling a multiplicity of the individual reservoirs (61) of the grid with a display medium (60) comprised of one or more set of colored particles in a dielectric fluid and locating the grid between conductive substrates (56). Moreover, the invention provides a method of forming an electrophoretic display device (65), comprising forming a film comprised of a material of a grid; exposing the film through a photomask and developing the film to achieve a grid having a desired grid pattern defining individual reservoirs; adhering the grid to a conductive substrate; and 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 and adhering an additional conductive substrate to an open side of the grid.
摘要:
Provided is an electrophoretic display device, comprising a multiplicity of individual reservoirs containing a display medium between conductive substrates, at least one of which is transparent, wherein the display medium comprises one or more set of colored particles in a dielectric fluid, and wherein the multiplicity of individual reservoirs comprise mesh openings (52) in a fabric mesh (50) whose fibers or filaments (56) segregate the reservoirs.
摘要:
A display medium for an electrophoretic display device includes a liquid system, at least one thermally reversible gelling agent, and at least one set of particles exhibiting a color. Inclusion of the gelling agent enables an image formed in the display device at an elevated temperature of about or above the melting point of the gelling agent to be fixed in a gel state, e.g., at temperature of about or below a gel point of the gelling agent. The image thus has stability, even in the absence of an applied electrophoretic field.
摘要:
Disclosed are marking particles comprising a resin, a chelating agent, and a spiropyran material which is of the formula or The marking particles are prepared by an emulsion aggregation process.
摘要:
An encapsulation process including: (a) forming an emulsion composed of a continuous phase comprising a first liquid, a cationic material, and an anionic material, and a disperse phase composed of a plurality of droplets of a second liquid, wherein a number of the droplets includes therein one to five particles; and (b) inducing complex coacervation of the cationic material and the anionic material to form a shell around each of the droplets. Preferably the shell is gelled and subsequently hardened.
摘要:
Photoresponsive devices, including layered photoresponsive devices, comprised of a photoconductive layer of squaraine compositions of the structure: wherein R 1 , R 2 , and R 3 are alkyl or aryl substituents.