Patent application number | Description | Published |
20120319146 | FINE TUNING OF EMISSION SPECTRA BY COMBINATION OF MULTIPLE EMITTER SPECTRA - A first device is provided. The first device includes an anode, a cathode and an emissive layer disposed between the anode and the cathode. The emissive layer includes a first organic emitting material having a first peak wavelength and a second organic emitting material having a second peak wavelength. The emissive layer has a homogenous composition. The second peak wavelength is between 0 and 40 nm greater than the first peak wavelength. | 12-20-2012 |
20130105777 | REDUCING OLED DEVICE EFFICIENCY AT LOW LUMINANCE | 05-02-2013 |
20130126832 | ORGANIC LIGHT EMITTING DEVICE AND MATERIALS FOR USE IN SAME - The present invention provides an OLED in which an organic thin film layer comprising a single layer or plural layers between a cathode and an anode, wherein the organic thin film layer comprises at least one organic light emitting layer, wherein at least one light emitting layer comprises at least one host material and at least one phosphorescent emitter material, wherein the host material comprises a substituted or unsubstituted hydrocarbon compound having the chemical structure represented by the formula (A-I): formula (A-1) wherein R | 05-23-2013 |
20130306960 | ORGANIC LIGHT EMITTING DEVICE AND MATERIALS FOR USE IN SAME - The present invention provides an OLED in which an organic thin film emissive layer comprising a single layer or plural layers between a cathode and an anode, wherein the organic thin film layer comprises at least one organic light emitting layer, wherein at least one light emitting layer comprises at least one host material and at least one phosphorescent emitter material, wherein the host material comprises a substituted or unsubstituted hydrocarbon compound having the chemical structure represented by the following formula (1): | 11-21-2013 |
20130306961 | ORGANIC LIGHT EMITTING DEVICE AND MATERIALS FOR USE IN SAME - The present invention provides an OLED in which an organic thin film emissive layer comprising a single layer or plural layers between a cathode and an anode, wherein the organic thin film layer comprises at least one organic light emitting layer, wherein at least one light emitting layer comprises at least one host material and at least one phosphorescent emitter material, wherein the host material comprises a substituted or unsubstituted hydrocarbon compound having the chemical structure represented by the following formula: | 11-21-2013 |
20130306962 | ORGANIC LIGHT EMITTING DEVICE AND MATERIALS FOR USE IN SAME - The OLEDs of the present invention are characterized by providing an organic thin film layer comprising a single layer or plural layers between a cathode and an anode, wherein the organic thin film layer comprises at least one organic light emitting layer, wherein at least one light emitting layer comprises at least one host material and at least one phosphorescent emitter material, wherein the host material comprises a substituted or unsubstituted hydrocarbon compound represented by the formula (1) or (2): | 11-21-2013 |
20130306963 | ORGANIC LIGHT EMITTING DEVICE AND MATERIALS FOR USE IN SAME - The OLEDs of the present invention are characterized by providing an organic thin film layer comprising a single layer or plural layers between a cathode and an anode, wherein the organic thin film layer comprises at least one organic light emitting layer, wherein at least one light emitting layer comprises at least one host material and at least one phosphorescent emitter material, wherein the host material comprises a bis-carbazole derivative host material;
| 11-21-2013 |
20140127847 | FINE TUNING OF EMISSION SPECTRA BY COMBINATION OF MULTIPLE EMITTER SPECTRA - A method of fabricating a first device includes providing a first container that contains, in a desired proportion, a first organic emitting material having a first peak wavelength, a second organic emitting material having a second peak wavelength; providing a substrate having a first electrode disposed thereon; depositing an emissive layer over the first electrode, wherein the first container is a source of material for depositing, and wherein the emissive layer has a homogeneous composition and comprises the first and second organic emitting materials in the desired proportion; depositing a second electrode over the first emissive layer, and wherein the second peak wavelength is between 0 and 40 nm greater than the first peak wavelength. | 05-08-2014 |
20150053938 | ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES - A composition formed of a first mixture of a first compound and a second compound wherein the first compound has different chemical structure than the second compound; the first compound is capable of functioning as a hole transporting material in an organic light emitting device at room temperature; the first compound comprises at least one carbazole group; the first compound has a evaporation temperature T1 of 150 to 350° C.; the second compound has evaporation temperature T2 of 150 to 350° C.; the absolute value of T1−T2 is less than 20° C.; the first compound having a concentration C1 in said first mixture, and the first compound having a concentration C2 in a film formed by evaporating the first mixture in a vacuum deposition tool at a constant pressure between 1×10 | 02-26-2015 |
20150053939 | ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES - A composition formed of a mixture of two compounds having similar thermal evaporation properties that are pre-mixed into an evaporation source that can be used to co-evaporate the two compounds into an emission layer in OLEDs via vacuum thermal evaporation process is disclosed. | 02-26-2015 |