Patent application number | Description | Published |
20080319155 | OPTOELECTRONIC POLYMER COMPOSITIONS, AND DEVICES THEREFROM - In one aspect, the invention provides a polyarylether having pendant carbazolyl groups. The polymers of the invention are made by the bromination of a polyarylether, which is then reacted with a carbazole moiety. The polymers may have some amount of unsubstituted aromatic groups and some brominated aromatic groups also. These polymers find use in optoelectronic device. Thus, in another aspect, the invention provides optoelectronic device comprising a polyarylether having pendant carbazolyl groups. | 12-25-2008 |
20090156783 | EMISSIVE POLYMERIC MATERIALS FOR OPTOELECTRONIC DEVICES - Polymers including at least one structural unit derived from a compound of formula I or including at least one pendant group of formula II may be used in optoelectronic devices | 06-18-2009 |
20090215620 | ENHANCED SECURITY OF OPTICAL ARTICLE - An optical article comprising a primary mark disposed on the optical article and a secondary mark disposed on the optical article in close proximity to the primary mark. The primary mark comprises a first optical-state change material and the secondary mark comprises a second optical-state change material. The optical article is transformed from a pre-activated state to an activated state when a localized authorized activation method is used that selectively activates the primary mark. The optical article is transformed from a pre-activated state to an deactivated state when a non-localized unauthorized activation method is used that activates the secondary mark along with the primary mark resulting in the second optical-state change material undergoing a reverse color change when compared to the first optical-state change material. An optical article with a single mark including multiple color change optical-state change material is also disclosed. Methods of covering and encapsulating the marks are also disclosed. | 08-27-2009 |
20100051869 | ORGANIC IRIDIUM COMPOSITIONS AND THEIR USE IN ELECTRONIC DEVICES - The present invention provides compositions comprising at least one novel organic iridium compound which comprises at least one cyclometallated ligand and at least one ketopyrrole ligand. The organic iridium compositions of the present invention are referred to as Type (1) organic iridium compositions and are constituted such that no ligand of the novel organic iridium compound has a number average molecular weight of 2,000 grams per mole or greater (as measured by gel permeation chromatography). Type (1) organic iridium compositions are referred to herein as comprising “organic iridium complexes”. The novel organic iridium compositions are useful in optoelectronic electronic devices such as OLED devices and photovoltaic devices. In one aspect, the invention provides novel organic iridium compositions useful in the preparation of OLED devices exhibiting enhanced color properties and light output efficiencies. | 03-04-2010 |
20100090586 | ELECTRONIC DEVICES COMPRISING ORGANIC IRIDIUM COMPOSITIONS - The present invention provides electronic devices comprising novel polymeric organic iridium compositions which provide for enhanced device performance. The polymeric organic iridium compositions employed comprise a polymeric organic iridium compound comprising at least one cyclometallated ligand and at least one ketopyrrole ligand. The polymeric organic iridium compositions employed are referred to as Type (2) organic iridium compositions and are constituted such that at least one ligand of the polymeric organic iridium compound has a number average molecular weight of 2,000 grams per mole or greater (as measured by gel permeation chromatography). Type (2) organic iridium compositions are referred to herein as comprising “polymeric organic iridium complexes”. In one aspect, the present invention provides optoelectronic devices, such as OLED devices and photovoltaic devices. In another aspect, the invention provides OLED devices exhibiting enhanced color properties and light output efficiencies. | 04-15-2010 |
20100092801 | 2,5-LINKED POLYFLUORENES FOR OPTOELECTRONIC DEVICES - Polyfluorene polymers and copolymers having substantial amounts (10-100%) of fluorenes coupled at the 2 and 5 positions of fluorene are useful as active layers in OLED devices where triplet energies >2.10 eV are required. | 04-15-2010 |
20100093967 | 2,5-LINKED POLYFLUORENES FOR OPTOELECTRONIC DEVICES - Polyfluorene polymers and copolymers having substantial amounts (10-100%) of fluorenes coupled at the 2 and 5 positions of fluorene are useful as active layers in OLED devices where triplet energies >2.10 eV are required. | 04-15-2010 |
20100093968 | 2,5-LINKED POLYFLUORENES FOR OPTOELECTRONIC DEVICES - Polyfluorene polymers and copolymers having substantial amounts (10-100%) of fluorenes coupled at the 2 and 5 positions of fluorene are useful as active layers in OLED devices where triplet energies >2.10 eV are required. | 04-15-2010 |
20100137538 | ELECTRON-TRANSPORTING POLYMERS - The invention relates to polymers useful in optoelectronic devices and comprising structural unit of formula I: | 06-03-2010 |
20100144976 | FUNCTIONALIZED POLYFLUORENES FOR USE IN OPTOELECTRONIC DEVICES - The present invention relates to process comprising reacting a polyfluorenes comprising at least one structural group of formula I | 06-10-2010 |
20100144992 | FUNCTIONALIZED POLYFLUORENES FOR USE IN OPTOELECTRONIC DEVICES - The present invention relates to process comprising reacting a polyfluorenes comprising at least one structural group of formula I | 06-10-2010 |
20100234493 | THERMALLY RESPONSIVE INK AND COATING COMPOSITIONS - A thermally responsive ink composition consisting of at least one halochromic optical-state change material, at least one base, at least one solvent, and at least one binder material. The pH of the ink composition is such that the halochromic optical-state change material remains in its basic state until it is acted upon by a thermal stimulus. The ink composition is capable of transforming from a first optical state to a second optical state upon a change in pH caused by exposure to a thermal stimulus. A thermally responsive ink composition consisting of at least one quaternary onium salt of an halochromic optical-state change material, at least one solvent, and at least one binder material is also disclosed. Coating compositions prepared using these ink compositions and optical articles comprising these coating compositions are also disclosed. | 09-16-2010 |
20100268479 | SENSOR SYSTEM AND METHODS FOR ANALYTE DETECTION - A system for selectively determining at least two analytes, comprising at least one resonant sensor circuit comprising a sensing material that predictably affects the resonant complex impedance response of a sensor electrode, wherein the sensing material having at least two material properties that change upon exposure to two or more analytes; and a processor that generates a multivariate sensor response pattern that is based at least in part on a change in the two material properties of the sensing material and a sensing device and methods adapted to detect an analyte using the same sensor system. | 10-21-2010 |
20100270537 | OPTOELECTRONIC DEVICES AND ORGANIC COMPOUNDS USED THEREIN - An optoelectronic device comprises a cathode; an electron-transporting layer comprising a compound of formula I; | 10-28-2010 |
20100327735 | FLUORENE DIMERS AND TRIMERS - Optoelectronic devices include triplet blocking compounds of formula I | 12-30-2010 |
20130248840 | FLUORENE DIMERS AND TRIMERS - Solution processes for fabricating an optoelectronic devices include contacting an electroluminescent layer comprising an alcohol-insoluble electroluminescent polymer with an alcoholic solution of a compound of formula Ia to form an electron transporting layer directly disposed on the electroluminescent layer; and depositing a metal cathode layer on the electron transporting layer; | 09-26-2013 |