摘要:
An electrophoretic display medium includes one or more set of colored particles in a dielectric fluid, wherein at least one of the one or more set of particles comprise poly(meth)acrylate/hydrophilic monomer) emulsion aggregation polymer particles such as poly(methyl methacrylate/butyl acrylate/β-carboxyethylacrylate) emulsion aggregation polymer particles. The display medium is included in an electrophoretic display device by including the medium in a multiplicity of individual reservoirs of a display layer or layers that is located between conductive substrates.
摘要:
A method of displaying an image in an electrophoretic display device includes charging each of the sets of differently colored particles to have a different charge through application of an electric field to the display fluid or the device, and then applying an electric field to selected ones of the multiplicity of reservoirs to effect movement of one or more of the differently colored sets of particles in the display fluid therein to display a desired color derived from among the sets of differently colored particles. The colors are shown by way of the particle set or sets moved to be closet to the viewing side conductive substrate of the device. The device may include at least one display layer, including a multiplicity of individual reservoirs containing a display fluid, between conductive substrates, at least one of which is transparent and thus may be a viewing side substrate, wherein the display fluid includes at least two sets of particles in a liquid medium, the at least two sets of particles exhibiting a different color.
摘要:
An electrophoretic display medium includes one or more set of colored particles in a dielectric fluid, wherein at least one of the one or more set of particles are particles having acid functionality imparting a substantially uniform negative charge to the particles. The display medium is included in an electrophoretic display device by including the medium in a multiplicity of individual reservoirs of a display layer or layers that is located between conductive substrates.
摘要:
Set forth is a method of forming an electrophoretic display device that includes locating a multiplicity of individual reservoirs containing a display fluid between conductive substrates, at least one of which is transparent, to form a device, wherein the display fluid comprises at least two sets of particles in a liquid medium, the at least two sets of particles exhibiting a different color, and charging each of the sets of particles to have a different charge via application of an electric field to the device. This field induced charging of the sets of differently colored particles enables low conductivity particles with superior electrophoretic mobility to be achieved.
摘要:
An image forming medium includes a substrate, and an imaging layer coated on or impregnated into said substrate, wherein the imaging layer includes an imaging composition including a photochromic or photochromic-thermochromic material dissolved or dispersed in a solvent or polymeric binder, wherein the imaging composition is imageable by light of a first wavelength and erasable in a short time period by a combination of heat and light of a second wavelength such that simultaneous erase with heat and light of the second wavelength is faster than erase by heat alone and exhibits a reversible transition between a colorless and a colored state.
摘要:
An image forming medium includes a substrate, and an imaging layer coated on or impregnated into said substrate, wherein the imaging layer includes an imaging composition including a photochromic or photochromic-thermochromic material dissolved or dispersed in a solvent or polymeric binder, wherein the imaging composition is imageable by light of a first wavelength and erasable in a short time period by a combination of heat and light of a second wavelength such that simultaneous erase with heat and light of the second wavelength is faster than erase by heat alone and exhibits a reversible transition between a colorless and a colored state.
摘要:
A method of dispensing display fluid into an array of cells loads an array of quills with the fluid. inserts the array of quills loaded with the fluid into the array of cells, such that each quill is inserted into a separate cell, contacts an inner surface of the cells to cause the fluid to transfer from the quills to the cells, and seals the cells. A dispensing system has a first substrate having an array of quills arranged on a first pitch, a first fixture to hold the first substrate, a second substrate having an array of cells, wherein the cells are arranged on a second pitch that is proportional to the first pitch, a second fixture to hold the second substrate, and an alignment system to align the first substrate to the second substrate such that each quill dispenses a display fluid into selected ones of the cells. An array of quills reside on a substrate, the quills having a lateral extent less than a lateral dimension of a cell into which the quills will be inserted, and a vertical extent at least twice the vertical extent of a depth of the cells.
摘要:
An electrophoretic display medium includes one or more set of colored particles in a dielectric fluid, wherein at least one of the one or more set of particles are particles having acid functionality imparting a substantially uniform negative charge to the particles. The display medium is included in an electrophoretic display device by including the medium in a multiplicity of individual reservoirs of a display layer or layers that is located between conductive substrates.
摘要:
An electrophoretic display medium includes at least one 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. The display medium is included in an electrophoretic display device by including the medium in a multiplicity of individual reservoirs of a display layer or layers that is located between conductive substrates.
摘要:
A method of making a multichromal sphere includes the steps of preparing a composition of at least (1) a matrix material and (2) at least two sets of particles, each of the sets of particles having a color different from at least one of another of the sets of particles and a segregation (e.g., an electrical or magnetic) property different from at least one of another of the sets of particles, encapsulating the composition within a shell to form an encapsulated sphere, immobilizing the encapsulated sphere in a manner to restrict at least rotation of the encapsulated sphere, subjecting the immobilized encapsulated sphere to an external field associated with the segregation property different among the sets of particles, under conditions in which the sets of particles are able to migrate within the matrix material, thereby producing color segregation in the immobilized encapsulated sphere, and solidifying the matrix material while substantially maintaining the color segregation. In the multichromal spheres, each of the sets of particles is segregated within a separate segment of the solidified matrix material of the core on the basis of the different segregation property.