Abstract: An example electrophoretic luminescent device includes: an outer substrate and an inner substrate, one of which is a waveguide material, or includes a waveguide layer; a light source, the light from which is coupled to the waveguide material or waveguide layer; and at least one tunable fluorescent layer comprising: a driven electrode and a reference electrode, the driven electrode and the reference electrode disposed in a spaced apart relationship between the inner substrate and the outer substrate; an electrophoretic media, the electrophoretic media comprising a fluorescent charged nanoparticle, oppositely charged polymers or nanoparticles to balance the charge, the fluorescent charged nanoparticles inducible to fluoresce when they are within the evanescent field of the waveguide; and a controller coupled to the driven electrode, the controller to drive the driven electrode to induce a voltage difference to change the electromagnetic field applied to the electrophoretic media.

Abstract: An example charged electrophoretic particle includes a dielectric core structure; and a polymeric corona surrounding the core structure, the polymeric corona comprising: several polymer arms; and a first chemical entity inducible to reversibly switch between a separated state, relative to a second chemical entity, and an optically active state, with the second chemical entity, to change an optical property of the electrophoretic particle in response to the second chemical entity.

Abstract: An example electrophoretic display device includes: an outer substrate and an inner substrate; and at least one color-changing layer comprising: a plurality of driven electrodes and at least one reference electrode; a plurality of microstructures disposed between the driven electrodes and the reference electrode, the microstructures containing an electrophoretic media; and a controller coupled to the driven electrodes, the controller configured to: obtain image data representing an image to be displayed by the electrophoretic display device; select a subset of the driven electrodes based on a mapping of the image data to the driven electrodes; and drive the subset of driven electrode to induce a voltage difference to change the electromagnetic field applied to the electrophoretic media in the microstructures aligned with the subset of driven electrodes.

Abstract: An example electrophoretic display assembly includes: an outer substrate; an inner substrate; a first electrode and a second electrode disposed between the inner substrate and the outer substrate in a spaced apart relationship; and at least one substantially planar microstructure between the first and second electrodes, the microstructure containing an electrophoretic media. For example, the planar microstructures may be parallel to or perpendicular to the outer substrate. Also provided are example methods of fabricating electrophoretic display assemblies. A plurality of electrophoretic display assemblies may be combined to form an electrophoretic display, wherein each display assembly represents a pixel of the display device. The planar microstructures may increase the display quality, including the contrast or color capabilities of electrophoretic displays.

Abstract: An example display assembly includes: an outer substrate; an inner substrate; a first electrode and a second electrode disposed between the inner substrate and the outer substrate in a spaced apart relationship; and at least one substantially planar microstructure between the first and second electrodes, the microstructure containing an electrophoretic media, and wherein the electrophoretic media comprises a first chemical entity and a second chemical entity, wherein the first and second chemical entities are to be induced to reversibly interact to switch between a separated state and an optically active state in response to a change in an electromagnetic field applied to the electrophoretic media by the first and second electrodes to change an optical property of the electrophoretic media.

Abstract: An example electrophoretic display assembly includes: an outer substrate; an inner substrate; a first electrode and a second electrode disposed between the inner substrate and the outer substrate in a spaced apart relationship; and at least one substantially planar microstructure between the first and second electrodes, the microstructure containing an electrophoretic media. For example, the planar microstructures may be parallel to or perpendicular to the outer substrate. Also provided are example methods of fabricating electrophoretic display assemblies. A plurality of electrophoretic display assemblies may be combined to form an electrophoretic display, wherein each display assembly represents a pixel of the display device. The planar microstructures may increase the display quality, including the contrast or color capabilities of electrophoretic displays.

Abstract: Example electrophoretic dispersions for use in electrophoretic displays are provided. An example electrophoretic dispersion includes a first chemical entity and a second chemical entity. The first and second chemical entities are to be induced to reversibly interact to switch between a separated state and an optically active state in response to a change in an electromagnetic field passing through the electrophoretic dispersion to change an optical property of the electrophoretic dispersion. Electrophoretic display devices, methods for operating electrophoretic display devices, non-transitory machine-readable storage mediums, and methods for producing electrophoretic dispersions are also provided.