Patent application number | Description | Published |
20080315459 | ARTICLES AND METHODS FOR REPLICATION OF MICROSTRUCTURES AND NANOFEATURES - An article is provided that includes a mold comprising a pattern, a metal-containing layer in contact with the pattern, and a release agent that includes a functionalized perfluoropolyether bonded to the metal-containing layer. Also provided is a method of replication that includes the mold. | 12-25-2008 |
20090015142 | LIGHT EXTRACTION FILM FOR ORGANIC LIGHT EMITTING DIODE DISPLAY DEVICES - A multifunctional optical film for enhancing light extraction includes a flexible substrate, a structured layer, and a backfill layer. The structured layer effectively uses microreplicated diffractive or scattering nanostructures located near enough to the light generation region to enable extraction of an evanescent wave from an organic light emitting diode (OLED) device. The backfill layer has a material having an index of refraction different from the index of refraction of the structured layer. The backfill layer also provides a planarizing layer over the structured layer in order to conform the light extraction film to a layer of an OLED display device. The film may have additional layers added to or incorporated within it to an emissive surface in order to effect additional functionalities beyond improvement of light extraction efficiency. | 01-15-2009 |
20090015757 | LIGHT EXTRACTION FILM FOR ORGANIC LIGHT EMITTING DIODE LIGHTING DEVICES - A multifunctional optical film for enhancing light extraction includes a flexible substrate, a structured layer, and a backfill layer. The structured layer effectively uses microreplicated diffractive or scattering nanostructures located near enough to the light generation region to enable extraction of an evanescent wave from an organic light emitting diode (OLED) device. The backfill layer has a material having an index of refraction different from the index of refraction of the structured layer. The backfill layer also provides a planarizing layer over the structured layer in order to conform the light extraction film to a layer of an OLED lighting device such as solid state lighting devices or backlight units. The film may have additional layers added to or incorporated within it to an emissive surface in order to effect additional functionalities beyond improvement of light extraction efficiency. | 01-15-2009 |
20090041986 | METHOD OF MAKING HIERARCHICAL ARTICLES - Provided is a method of fabricating hierarchical articles that contain nanofeatures and microstructures. The method includes providing a substrate that includes nanofeatures and then creating microstructures adding a layer, removing at least a portion of the layer to reveal at least a portion of the substrate. | 02-12-2009 |
20090061039 | SILICONE MOLD AND USE THEREOF - A silicone mold comprising and oxidized, patterned surface and a layer of perfluoroether silane release agent is described. The mold enables 2 | 03-05-2009 |
20090114618 | METHOD OF MAKING HIERARCHICAL ARTICLES - Provided is a method of making hierarchical structures that contain nanofeatures and microstructures. The method includes adding the nanofeatures to existing microstructures using nanoparticles as an etch mask. | 05-07-2009 |
20090122310 | METHOD OF MAKING MICROARRAYS - Provided is a method of making microarrays that includes providing a substrate with discrete first microfeatures that have a first profile, and depositing vapor-coated materials onto the first microfeatures to form second microfeatures having a second profile that is substantially different from the first profile. Also provided is a method of adding a replication material to the vapor-coated microfeatures to form a mold. Microarrays made by this method can be used as substrates for surface-enhanced Raman spectroscopy (SERS). | 05-14-2009 |
20100110551 | LIGHT EXTRACTION FILM WITH HIGH INDEX BACKFILL LAYER AND PASSIVATION LAYER - A multifunctional optical film for enhancing light extraction includes a flexible substrate, a structured layer, a high index backfill layer, and an optional passivation layer. The structured layer effectively uses microreplicated diffractive or scattering nanostructures located near enough to the light generation region to enable extraction of an evanescent wave from an organic light emitting diode (OLED) device. The backfill layer has a material having an index of refraction different from the index of refraction of the structured layer. The backfill layer also provides a planarizing layer over the structured layer in order to conform the light extraction film to a layer of an OLED display device. The film may have additional layers added to or incorporated within it to an emissive surface in order to effect additional functionalities beyond improvement of light extraction efficiency. | 05-06-2010 |
20100150513 | LIGHT EXTRACTION FILM WITH NANOPARTICLE COATINGS - A multifunctional optical film for enhancing light extraction includes a flexible substrate, a structured layer having nanoparticles of different sizes, and a backfill layer. The structured layer effectively uses microreplicated diffractive or scattering nanostructures located near enough to the light generation region to enable extraction of an evanescent wave from an organic light emitting diode (OLED) device. The backfill layer has a material having an index of refraction different from the index of refraction of the structured layer. The backfill layer also provides a planarizing layer over the structured layer in order to conform the light extraction film to a layer of an OLED display device. The film may have additional layers added to or incorporated within it to an emissive surface in order to effect additional functionalities beyond improvement of light extraction efficiency. | 06-17-2010 |
20100165276 | ANTIREFLECTIVE ARTICLES AND METHODS OF MAKING THE SAME - A composite having (a) a substrate that has opposing first and second surfaces, the substrate being at least 90% transmissive in visible light and has less than 5% haze, (b) a nanostructured article including a matrix and a nanoscale dispersed phase and having a random nanostructured anisotropic surface; and (c) an optically clear adhesive disposed on the second surface of the substrate. | 07-01-2010 |
20100260462 | Method for Making Optical Waveguides - A method for making a waveguide comprises (a) providing a waveguide structure comprising a substrate ( | 10-14-2010 |
20110101382 | LIGHT CONVERTING CONSTRUCTION - Light converting constructions are disclosed. The light converting construction includes a phosphor slab that has a first index of refraction for converting at least a portion of light at a first wavelength to light at a longer second wavelength; and a structured layer that is disposed on the phosphor slab and has a second index of refraction that is smaller than the first index of refraction. The structured layer includes a plurality of structures that are disposed directly on the phosphor slab and a plurality of openings that expose the phosphor slab. The light converting construction further includes a structured overcoat that is disposed directly on at least a portion of the structured layer and a portion of the phosphor slab in the plurality of openings. The structured overcoat has a third index of refraction that is greater than the second index of refraction. | 05-05-2011 |
20110101402 | SEMICONDUCTOR LIGHT CONVERTING CONSTRUCTION - Semiconductor light converting constructions are disclosed. The semiconductor light converting construction includes a semiconductor potential well for converting at least a portion of light at a first wavelength to light at a longer second wavelength; an outer layer that is disposed on the semiconductor potential well and has a first index of refraction; and a structured layer that is disposed on the outer layer and has a second index of refraction that is smaller than the first index of refraction. The structured layer includes a plurality of structures that are disposed directly on the outer layer and a plurality of openings that expose the outer layer. The semiconductor light converting construction further includes a structured overcoat that is disposed directly on at least a portion of the structured layer and a portion of the outer layer in the plurality of openings. The overcoat has a third index of refraction that is greater than the second index of refraction. | 05-05-2011 |
20110101403 | SEMICONDUCTOR LIGHT CONVERTING CONSTRUCTION - Semiconductor light converting constructions are disclosed. The semiconductor light converting construction includes a first semiconductor layer for absorbing at least a portion of light at a first wavelength; a semiconductor potential well for converting at least a portion of the light absorbed at the first wavelength to light at a longer second wavelength; and a second semiconductor layer that is capable of absorbing at least a portion of light at the first wavelength. The first semiconductor layer has a maximum first index of refraction at the second wavelength. The second semiconductor layer has a second index of refraction at the second wavelength that is greater than the maximum first index of refraction. | 05-05-2011 |
20110104321 | METHOD FOR REPLICATING MASTER MOLDS - The disclosure provides a method of replicating a master using a patterned silicone daughter mold, from a master mold, the daughter mold having a layer of a ductile metal on the patterned surface thereof. | 05-05-2011 |
20110108861 | PROCESS FOR ANISOTROPIC ETCHING OF SEMICONDUCTORS - A method is provided for anisotropically etching semiconductor materials such as II-VI and III-V semiconductors. The method involves repeated cycles of plasma sputter etching of semiconductor material with a non-reactive gas through an etch mask, followed by passivation of the side walls by plasma polymerization using a polymer former. Using this procedure small pixels in down-converted light-emitting diode devices can be fabricated. | 05-12-2011 |
20110108956 | ETCHING PROCESS FOR SEMICONDUCTORS - A process for etching semiconductors, such as II-VI or III-V semiconductors is provided. The method includes sputter etching the semiconductor through an etching mask using a nonreactive gas, removing the semiconductor and cleaning the chamber with a reactive gas. The etching mask includes a photoresist. Using this method, light-emitting diodes with light extracting elements or nano/micro-structures etched into the semiconductor material can be fabricated. | 05-12-2011 |
20110117686 | METHOD OF FABRICATING LIGHT EXTRACTOR - Methods of fabricating light extractors are disclosed. The method of fabricating an optical construction for extracting light from a substrate includes the steps of: (a) providing a substrate that has a surface; (b) disposing a plurality of structures on the surface of the substrate, where the plurality of structures form open areas that expose the surface of the substrate; (c) shrinking at least some of the structures; and (d) applying an overcoat to cover the shrunk structures and the surface of the substrate in the open areas. | 05-19-2011 |
20110200293 | LIGHT EXTRACTION FILM WITH NANOPARTICLE COATINGS - A multifunctional optical film for enhancing light extraction includes a flexible substrate, a structured layer having nanoparticles of different sizes, and a backfill layer. The structured layer effectively uses microreplicated diffractive or scattering nanostructures located near enough to the light generation region to enable extraction of an evanescent wave from an organic light emitting diode (OLED) device. The backfill layer has a material having an index of refraction different from the index of refraction of the structured layer. The backfill layer also provides a planarizing layer over the structured layer in order to conform the light extraction film to a layer of an OLED display device. The film may have additional layers added to or incorporated within it to an emissive surface in order to effect additional functionalities beyond improvement of light extraction efficiency. | 08-18-2011 |
20110229992 | LIGHT EXTRACTION FILM FOR ORGANIC LIGHT EMITTING DIODE LIGHTING DEVICES - A multifunctional optical film for enhancing light extraction includes a flexible substrate, a structured layer, and a backfill layer. The structured layer effectively uses microreplicated diffractive or scattering nanostructures located near enough to the light generation region to enable extraction of an evanescent wave from an organic light emitting diode (OLED) device. The backfill layer has a material having an index of refraction different from the index of refraction of the structured layer. The backfill layer also provides a planarizing layer over the structured layer in order to conform the light extraction film to a layer of an OLED lighting device such as solid state lighting devices or backlight units. The film may have additional layers added to or incorporated within it to an emissive surface in order to effect additional functionalities beyond improvement of light extraction efficiency. | 09-22-2011 |
20110243500 | LIGHT GUIDES HAVING ENHANCED LIGHT EXTRACTION - Lightguides, devices incorporating lightguides, processes for making lightguides, and tools used to make lightguides are described. A lightguide includes light extractors arranged in a plurality of regions on a surface of the lightguide. The orientation of light extractors in each region is arranged to enhance uniformity and brightness across a surface of the lightguide and to provide enhanced defect hiding. The efficiency of the light extractors is controlled by the angle of a given light extractor face with respect to a light source illuminating the light guide. | 10-06-2011 |
20110261461 | OLED LIGHT EXTRACTION FILMS LAMINATED ONTO GLASS SUBSTRATES - A light extraction film laminated to a glass substrate for organic light emitting diode (OLED) devices. The light extraction film includes a flexible substantially transparent film, a low index nanostructured layer applied to the film, and a high index planarizing backfill layer applied over the nanostructured layer. A glass substrate is laminated to the flexible substantially transparent film on a side opposite the nanostructured layer and including an ultra-low index region between the film and the glass substrate. The ultra-low index region is used to reduce optical losses occurring with the glass substrate. | 10-27-2011 |
20110262093 | OLED LIGHT EXTRACTION FILMS HAVING INTERNAL NANOSTRUCTURES AND EXTERNAL MICROSTRUCTURES - A light extraction film having internal nanostructures and external microstructures for organic light emitting diode (OLED) devices. The light extraction film includes a flexible substantially transparent film, a low index nanostructured layer applied to the film, and a high index planarizing backfill layer applied over the nanostructured layer. External optical microstructures are applied to the flexible substantially transparent film on a side opposite the nanostructured layer to enhance light extraction from the OLED devices while providing for a more uniform luminance distribution. | 10-27-2011 |
20110281068 | NANOSTRUCTURED ARTICLES AND METHODS OF MAKING NANOSTRUCTURED ARTICLES - A nanostructured article comprises a matrix and a nanoscale dispersed phase. The nanostructured article has a random nanostructured anisotropic surface. | 11-17-2011 |
20120012739 | OPTICAL MICRORESONATOR SYSTEM - An optical device includes a light source ( | 01-19-2012 |
20120107556 | SUPERHYDROPHOBIC FILMS - Superhydrophobic films and methods of making such films are disclosed. More particularly, superhydrophobic films having durable nanostructures with high contrast ratios and various methods of producing such films are disclosed. | 05-03-2012 |
20120225517 | TEXTURING SURFACE OF LIGHT-ABSORBING SUBSTRATE - Etched substrates, and particularly, light-absorbing etched substrates, and methods for making such substrates are described. | 09-06-2012 |
20120234460 | OLED LIGHT EXTRACTION FILMS HAVING NANOPARTICLES AND PERIODIC STRUCTURES - A light extraction film having nanoparticles with engineered periodic structures. The light extraction film includes a substantially transparent substrate, low index one-dimensional or two-dimensional periodic structures on the substrate, and a high index planarizing backfill layer applied over the periodic structures. Light scattering nanoparticles are either applied in a layer over the periodic structures or included in the backfill layer. | 09-20-2012 |
20130109183 | Multilayer Construction | 05-02-2013 |
20140022644 | ANTIREFLECTIVE FILM COMPRISING LARGE PARTICLE SIZE FUMED SILICA - Antireflective films are described comprising a light transmissive substrate and a low refractive index layer disposed on the light transmissive substrate. The low refractive index layer comprises the reaction product of polymerizable resin composition comprising at least 20 wt-% fumed silica. In one embodiment, the polymerizable resin is ethylenically unsaturated. In a favored embodiment, the low refractive index layer increases in porosity from the light transmissive substrate interface to an opposing porous surface. | 01-23-2014 |