Patent application number | Description | Published |
20080278792 | ELECTROCHROMIC DEVICE HAVING IMPROVED COLOR PROPERTIES - An electrochromic device which includes a display electrode including a conductive layer disposed on a transparent substrate, a counter electrode disposed to face the display electrode, the counter electrode including a white reflective layer, an electrolyte interposed between the display electrode and the counter electrode, a first electrochromic material layer disposed on the display electrode and a second electrochromic material layer disposed on the counter electrode. | 11-13-2008 |
20080304132 | ELECTROCHROMIC DEVICE WITH IMPROVED DISPLAY PROPERTIES AND FABRICATION METHOD THEREOF - Disclosed are an electrochromic device and a method for fabricating the same. The electrochromic device comprises a transparent electrode, on which an electrochromic layer is formed, a counter electrode on which a reflective layer is formed, and an electrolyte layer interposed between the transparent electrode and the counter electrode. Since the electrolyte layer is formed in only an active region of unit pixels, neither crosstalk nor image diffusion occurs and only the selected region of unit pixels is operated. Thus, the electrochromic device can realize passive matrix displays capable of representing a desired color. Furthermore, the electrochromic device can be utilized in a variety of applications including flexible displays and electrical papers. | 12-11-2008 |
20090098043 | METHOD FOR PREPARING ZINC OXIDE NANOSTRUCTURES AND ZINC OXIDE NANOSTRUCTURES PREPARED BY THE SAME - Example embodiments provide a method for preparing zinc oxide nanostructures. According to the method, zinc oxide nanostructures are prepared by dipping a substrate having a zinc (Zn) seed layer thereon in an aqueous solution of hexamethyleneamine and dropwise adding an aqueous solution of zinc nitrate to the aqueous solution of hexamethyleneamine. In addition, zinc ions can be continuously supplied in a constant amount as the reactions of the reactants proceed to prepare high-quality zinc oxide nanostructures at a high growth rate. Furthermore, zinc oxide nanostructures can be prepared on a large-area substrate at a low processing temperature regardless of the substrate material. Example embodiments also provide zinc oxide nanostructures prepared by the method. | 04-16-2009 |
20090161195 | Color pixel structure of an electrochromic display - A color pixel structure of a color display system based on electrochromism. The color pixel structure includes two one-cell two-color type unit cells laminated. Each of the unit cells includes an upper panel, a lower panel and electrochromic materials of different colors applied to both the upper and lower panels. The color pixel structure exhibits improved color characteristics and have a simple structure. The color pixel structure can be applied to a variety of electrochromic displays due to their excellent visibility and simple structure. | 06-25-2009 |
20090161200 | ELECTROPHORETIC DISPLAY DEVICE AND OPERATING METHOD OF THE SAME - An electrophoretic display device with high reliability, high reflectance and improved color characteristics. The electrophorectic display device includes unit cells, each of which includes transmissive particles and a reflective panel. The unit cells are vertically laminated or arranged in parallel. In addition, the electrophorectic display device exhibits excellent visibility and has a simple structure. | 06-25-2009 |
20100060825 | Display apparatus having an active transflective device - A display apparatus includes an active transflective device and a device panel. The active transflective device is configured to electrically control light transmissivity and light reflectivity. The display panel is configured to form an image by modulating at least one of light reflected and light transmitted by the active transflective device. | 03-11-2010 |
20100182673 | Display devices using electrochromism and polymer dispersed liquid crystal and methods of driving the same - Provided are display devices using electrochromism and PDLC and methods of driving the display devices. A display device may include a plurality of first electrodes and a plurality of second electrodes; a polymer dispersed liquid crystal (PDLC) layer between the first electrodes and the second electrodes; a plurality of third electrodes and a plurality of fourth electrodes; a plurality of electrochromic layers between the third electrodes and the fourth electrodes; and an electrolyte layer between the third electrodes and the fourth electrodes. | 07-22-2010 |
20100208172 | Polymer dispersed display panels including quantum dots and display apparatuses including the same - A polymer dispersed display apparatus includes a polymer layer, and a plurality of liquid crystal drops dispersed in the polymer layer. Quantum dots emitting a plurality of colors of light are mixed in the liquid crystal drops. Therefore, the polymer dispersed display apparatus displays colors without the need for a color filter. Thus, the polymer dispersed display apparatus need not include a polarization plate and a color filter, so that a light usage efficiency of the polymer dispersed display apparatus increases. | 08-19-2010 |
20100309413 | Reflective-type color display devices using polymer dispersed liquid crystals and dyes - Reflective-type color display devices using polymer dispersed liquid crystals (PDLCs) and dyes are provided, the display devices including a pixel unit having PDLC layers that are disposed between first electrodes and second electrodes. The PDLC layers have different color dyes. The first electrodes are disposed on a first substrate and the second electrodes are disposed on a second substrate, wherein the first and second substrates are apart from each other. The pixel unit includes different color sub pixels. | 12-09-2010 |
20110019132 | Cholesteric liquid crystal display devices and methods of manufacturing the same - A cholesteric liquid crystal display device includes: a plurality of pixel units arranged two-dimensionally between two transparent substrates. Each of the plurality of pixel units includes a cholesteric liquid crystal layer having a single-layer structure. The cholesteric liquid crystal layer includes: a liquid crystal molecule; a chiral dopant; and an optically polymerizable polymer. The chiral dopant is mixed with the liquid crystal molecule to form a cholesteric phase and has a solubility that varies with respect to the liquid crystal molecule according to temperature. The optically polymerizable polymer is cured to fix a helix pitch of the cholesteric phase. | 01-27-2011 |
20110039032 | Method of manufacturing polymer dispersed liquid crystal display device including dichroic dye - Example embodiments relate to a method of manufacturing a polymer dispersed liquid crystal (PDLC) display device including dichroic dye. The method may include filling a mixture solution including liquid crystals, a photopolymerizable material, dichroic dyes, and liquid crystalline polymers in a space between a first electrode and a second electrode that face each other; applying an electric field between the first electrode and the second electrode; and arranging the dichroic dyes in the mixture solution. | 02-17-2011 |
20110067807 | Method of forming polymer dispersed liquid crystal layer including dichroic dye - Example embodiments relate to a method of forming a polymer dispersed liquid crystal (PDLC) layer including a dichroic dye. A first PDLC layer including the dichroic dye and a second PDLC layer having no dichroic dye may be bonded to each other so as to form the desired PDLC layer. | 03-24-2011 |
20110134372 | Polymer-dispersed liquid crystal display device and method of manufacturing the same - Provided are a polymer-dispersed liquid crystal (PDLC) display device and a method of manufacturing the same. The PDLC display device may include a PDLC layer between facing substrates, wherein the PDLC layer has at least two regions including polymers having different concentrations. | 06-09-2011 |
20110261294 | Color filter and display device employing the same - The color filter may include a pixel unit having a plurality of sub-pixels of different colors, wherein the plurality of sub-pixels respectively include flat plate metal layers and a plurality of color PDLC layers on the flat plate metal layers, and the plurality of color PDLC layers each include a polymer, a plurality of liquid crystal drops dispersed in the polymer, and a plurality of color display materials mixed in the liquid crystal drops. | 10-27-2011 |
20110261303 | Color filter and display devices including the same - A color filter and display devices using the same are provided, the color filter includes a first electrode and a second electrode spaced apart from each other; and a variable filter layer between the first electrode and the second electrode. The variable filter layer includes a polymer, liquid crystal dispersed in the polymer, and a plurality of color display materials mixed in the liquid crystal. | 10-27-2011 |
20110299014 | Reflective color display device - Example embodiments are directed to a reflective color display device including a first substrate and a second substrate spaced apart from each other; a plurality of first and second electrodes respectively on the first and second substrates; a polymer dispersed liquid crystal (PDLC) layer between the first and second electrodes and including a polymer and liquid crystals in the polymer; and a CMY color filter on the second substrate. | 12-08-2011 |
20110304799 | Polymer-dispersed liquid crystal display device and method of manufacturing the same - A polymer-dispersed liquid crystal (PDLC) display device includes a first substrate having a reflective layer on a surface thereof and a second substrate facing the first substrate. A first electrode and a second electrode may be formed on inner surfaces of the first and second substrates, and a PDLC layer may be between the first substrate and the second substrate. The PDLC layer may include a first liquid crystal layer region including dispersed polymers and liquid crystals, and a second liquid crystal layer region between the first liquid crystal layer region and the second substrate, the second liquid crystal layer region not including polymers. | 12-15-2011 |
20120038852 | Reflective display devices - Example embodiment are directed to a reflective display device including a polymer-dispersed liquid crystal (PDLC) layer between a first substrate and a second substrate, and a mirror reflection plate on the first substrate. | 02-16-2012 |
20120081644 | Cholesteric Liquid Crystal Display Devices And Methods Of Manufacturing The Same - In a method of manufacturing a single-layer cholesteric liquid crystal display device, a liquid crystal composition of a cholesteric phase is formed between a first substrate and a second substrate. A plurality of liquid crystal layers are formed by sequentially adjusting the temperature of the cholesteric phase liquid crystal composition and performing a plurality of optical curing processes on the cholesteric phase liquid crystal composition. Each of the plurality of liquid crystal layers corresponds to one of the plurality of subpixels. | 04-05-2012 |
20120088320 | Method of forming polymer-dispersed liquid crystal film including dichroic dye - In a method of forming a polymer-dispersed liquid crystal (PDLC) film, the presence of dichroic dye in a polymer may be prevented or reduced by diffusing dichroic dye into a PDLC layer, and a PDLC display device having improved visibility may be formed. | 04-12-2012 |
20120113360 | DISPLAY DEVICE HAVING COLOR FILTER - A display device may include a first substrate, a second substrate, reflective plates and a transparent electrode. The first substrate and the second substrate may be facing each other. The reflective plates may be on a surface of the first substrate facing the second substrate. The transparent electrode may be disposed on a surface of the second substrate facing the first substrate. Color filters and a polymer-dispersed liquid crystal (PDLC) layer may further be included in the display device. The color filters may be on the reflective plates, and the PDLC may be between the first substrate and the second substrate. The PDLC layer may include a polymer and liquid crystals dispersed in the polymer. | 05-10-2012 |
20120169971 | Reflective Polymer Dispersed Liquid Crystal Display Device - A reflective polymer dispersed liquid crystal (PDLC) display device may include a plurality of first and second electrodes on the first and second substrates, the first and second substrates separate from each other, a polymer dispersed liquid crystal (PDLC) layer between the plurality of first and second electrodes, the PDLC layer including polymer, liquid crystal, and a chain transfer reagent, and a specular reflection plate on the first substrate. | 07-05-2012 |
20120260979 | Solar Cell Using Polymer-Dispersed Liquid Crystals - Example embodiments relate to a solar cell configured to scatter incident light to be penetrated so as to increase a light progress path and includes a polymer-dispersed liquid crystal (PDLC) layer on at least one of a first and a second electrodes. | 10-18-2012 |
20120262649 | REFLECTIVE DISPLAY DEVICE INCLUDING POLYMER-DISPERSED LIQUID CRYSTALS - According to example embodiments, a reflective display device includes a plurality of pixel units. Each of the plurality of pixel units may include a reflective plate having at least one concave reflective surface, a first electrode on the reflective plate, a second electrode separate from the first electrode, at least one light-absorbing member corresponding to the at least one concave reflective surface, and a polymer dispersed liquid crystal PDLC layer between the first electrode and the second electrode. The PDLC layer includes a polymer and liquid crystals. The light-absorbing member may be at a focus position of the at least one concave reflective surface. | 10-18-2012 |
20130135701 | HOLOGRAPHY DEVICES, THREE-DIMENSIONAL IMAGE DISPLAY APPARATUSES INCLUDING THE SAME, AND METHODS OF PROCESSING HOLOGRAPHY IMAGES - A holography device may include a light reaction layer configured to react with light to form and remove a diffraction grating, and a metal thin film on the light reaction layer. When first light is incident on the metal thin film while the grating is formed in the light reaction layer, surface plasmon formed on the metal thin film may be diffracted so as to output a holography image. A method of processing a holography image may include recording the image on a holography device by irradiating first light to a light reaction layer to form a diffraction grating, outputting the image by irradiating second light to a metal thin film on the light reaction layer to diffract surface plasmon formed on the metal thin film, and deleting the image from the holography device by irradiating third light to the light reaction layer to remove the grating. | 05-30-2013 |
20130148180 | PHOTOREFRACTIVE COMPOSITE, SPATIAL LIGHT MODULATOR, AND HOLOGRAM DISPLAY DEVICE USING THE SAME - A photorefractive composite, a spatial light modulator and a hologram display device using the same include at least one carborane compound expressed as the following Chemical Formulae 1A through 1C: | 06-13-2013 |
20130148181 | PHOTOREFRACTIVE COMPOSITE, SPATIAL LIGHT MODULATOR, AND HOLOGRAM DISPLAY DEVICE USING THE SAME - A photorefractive composite, a spatial light modulator and a hologram display device using the same include at least one carborane compound expressed as the following Chemical Formulae 1A through 1C: | 06-13-2013 |
20140268264 | SPATIAL LIGHT MODULATOR, HOLOGRAPHIC THREE-DIMENSIONAL IMAGE DISPLAY INCLUDING THE SAME, AND METHOD FOR MODULATING SPATIAL LIGHT - A spatial light modulator, a holographic image display including the same, and a method for spatially modulating light. The spatial light modulator modulates a phase of light that is incident on a plurality of pixels and includes a variable refractive index layer that has a refractive index which is variable based on one of an optical signal and an electrical signal, and a metal layer that is disposed on the refractive index-change layer, and a high refractive index layer on the metal layer. Light incident on the metal layer causes generation of a surface plasmon at an interface between the variable refractive index layer and the metal layer. | 09-18-2014 |