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.

A color conversion panel according to an exemplary embodiment of the present invention includes an insulation substrate, a plurality of color conversion media layers on the insulation substrate and configured to emit different lights, and a light blocking member between adjacent ones of the color conversion media layers, wherein a cross-section of one of the color conversion media layers is inversely tapered when compared to a cross section of another one of the color conversion media layers.

A display system comprises light sources configured to emit first light with a first spectral power distribution; light regeneration layers configured to be stimulated by the first light and to convert at least a portion of the first light and recycled light into second light, the second light comprising (a) primary spectral components that correspond to primary colors and (b) secondary spectral components that do not correspond to the primary colors; and notch filter layers configured to receive a portion of the second light and to filter out the secondary spectral components from the portion of the second light. The portion of the second light can be directed to a viewer of the display system and configured to render images viewable to the viewer.

The object of the present invention is an cascaded ionizing radiation converter, comprising the first conversion stage, transforming ionizing radiation into non-ionizing electromagnetic radiation, the second conversion stage transforming non-ionizing electromagnetic radiation into an electrical charge, and the third conversion stage transforming the generated electric charge into the change of potential controlling the liquid crystal cell, wherein the first conversion stage is a radioluminescent layer, preferably Lu.sub.2O.sub.3:Eu layer, the second conversion stage is a photoconductive material layer, preferably amorphous selenium or poly (3-hexyl-thiophene) layer, and the non-ionizing electromagnetic radiation emission spectrum of the first conversion stage corresponds with the non-ionizing electromagnetic radiation absorption spectrum of the second conversion stage; And an imaging diagnostic apparatus using cascaded ionizing radiation converter.

A photo-tunable liquid crystal composition may include a polymer matrix and a liquid crystal mixture dispersed within the polymer matrix. The liquid crystal mixture may include at least one achiral nematic liquid crystal material, at least sine photo-active chiral dopant, at least one photo-inactive chiral dopant, and at least one emissive dye. The composition may be fabricated in the form of an emulsion, a wet film, or a dry film. The dry film may be used in a photo-tunable liquid crystal film laser. The output wavelength of the photo-tunable liquid crystal film laser may be tuned by exposing the dry film to illumination having at least one wavelength at one or more transition wavelengths.

A color conversion panel according to an exemplary embodiment of the present invention includes an insulation substrate, a plurality of color conversion media layers on the insulation substrate and configured to emit different lights, and a light blocking member between adjacent ones of the color conversion media layers, wherein a cross-section of one of the color conversion media layers is inversely tapered when compared to a cross section of another one of the color conversion media layers.

A light emitting device is presented. The device comprises an array of pixels and an electrode arrangement, wherein said array of pixels comprises pixels of first and second groups comprising first and second pluralities of light emitting nanorods aligned along first and second predetermined axes respectively, the axes being substantially perpendicular to each other, and the pixels of said array are associated with a plurality of electrode elements of said electrode arrangement thereby enabling modulation of optical emission of one or more pixels separately from one or more other pixels of said pixel array by controllable application of an electric field, the device being therefore configured and operable as an active pixel emitter.

A wavelength conversion module includes a substrate, a barrier wall structural layer, a plurality of wavelength conversion layers and a plurality of quantum dot particles. The substrate has a surface. The barrier wall structural layer is disposed on the surface and defines a plurality of recesses. Each of the wavelength conversion layers is located in one of the recesses. The quantum dot particles are disposed in the wavelength conversion layers. A backlight module having the wavelength conversion module and a manufacturing method of the wavelength conversion module are also provided.

A display apparatus includes a liquid crystal panel; a plurality of light sources configured to emit blue light; a reflective sheet including a plurality of holes through which the plurality of light sources are exposed; a diffuser plate configured to diffuse the light emitted from the plurality of light sources; and an optical sheet configured to improve luminance of the light emitted from the plurality of light sources, wherein at least one of the diffuser plate or the optical sheet includes a plurality of light conversion patches.