Patent application number | Description | Published |
20090121624 | STABLE BLUE PHOSPHORESCENT ORGANIC LIGHT EMITTING DEVICES - Novel combination of materials and device architectures for organic light emitting devices are provided. In some aspects, specific charge carriers and solid state considerations are features that may result in a device having an unexpectedly long lifetime. In some aspects, emitter purity is a feature that may result in devices having unexpectedly long lifetime. In some aspects, structural and optical considerations are features that may result in a device having an unexpectedly long lifetime. In some aspects, an emissive layer including an organic phosphorescent emissive dopant and an organic carbazole host material results in devices having an unexpectedly long lifetime. | 05-14-2009 |
20100090241 | EMISSIVE LAYER PATTERNING FOR OLED - An organic light emitting device is provided. The device includes an anode, a cathode, and an organic emissive stack disposed between the anode and the cathode. The device may be a “pixel” in a display, capable of emitting a wide variety of colors through the use of independently addressable “sub-pixels,” each subpixel emitting a different spectrum of light. In the most general sense, the device includes a first subpixel and a second subpixel, and at least one of the anode and the cathode has independently addressable first and second regions corresponding to the first and second subpixels. The device includes an emissive stack disposed between the anode and the cathode. The emissive stack includes a first organic emissive layer and a second organic emissive layer. The first organic emissive layer is disposed between the anode and the cathode, and extends throughout the first and second regions. The second organic emissive layer is disposed between the anode and the cathode, and extends throughout the second region but not the first region. The second organic emissive layer is disposed closer to the cathode than the first organic emissive layer. The first organic emissive layer is emissive in the first region, and the second organic emissive layer is emissive in the second region. | 04-15-2010 |
20100090620 | NOVEL OLED DISPLAY ARCHITECTURE - A device that may be used as a multi-color pixel is provided. The device has a first organic light emitting device, a second organic light emitting device, a third organic light emitting device, and a fourth organic light emitting device. The device may be a pixel of a display having four sub-pixels. The first device may emit red light, the second device may emit green light, the third device may emit light blue light and the fourth device may emit deep blue light. | 04-15-2010 |
20100225252 | NOVEL AMOLED DISPLAY ARCHITECTURE - A device that may be used as a multi-color pixel is provided. The device has a first organic light emitting device, a second organic light emitting device, a third organic light emitting device, and a fourth organic light emitting device. The device may be a pixel of a display having four sub-pixels. The first device may emit red light, the second device may emit green light, the third device may emit light blue light and the fourth device may emit deep blue light. | 09-09-2010 |
20100244069 | NOVEL OLED DISPLAY ARCHITECTURE - A device is provided. The device includes first, second and third subpixels. The first sub-pixel includes an emissive layer having a first emitting material but not a second emitting material. The second sub-pixel includes an emissive layer having the second emitting material but not the first emitting material. The third sub-pixel includes an emissive layer having both the first and second emitting materials. A method of fabricating the device is provided. For a three subpixel device, a first electrode layer is deposited, having a first sub-pixel and a second sub-pixel. Then, in a first patterned deposition process, a first emitting material is deposited on the first sub-pixel and the third sub-pixel, but not the second sub-pixel. Then, in a second patterned deposition process, a second emitting material is deposited on the second sub-pixel and the third sub-pixel, but not the first sub-pixel. Then, a second electrode layer is deposited. The first, second and third subpixels may be defined, for example, by patterning in either or both of the first and second electrode layers. Preferably, the device and method include a fourth subpixel. | 09-30-2010 |
20110227049 | PHOSPHORESCENT MATERIALS - Novel organic compounds containing a twisted aryl group are provided. In particular, the compounds provided contain a 2-phenylpyridine ligand having a twisted aryl group on the pyridine portion of the ligand. The compounds may be used in organic light emitting devices, particularly as emitting dopants. Devices comprising the compounds containing twisted aryl may demonstrate improved color, efficiency, stability and manufacturing. Additionally, methods are provided for making homoleptic Ir (III) compounds which may contain a twisted aryl. | 09-22-2011 |
20110233528 | NOVEL OLED DISPLAY ARCHITECTURE - A quad pixel device is provided. Each pixel is an organic light emitting device (OLED), such that there is a first, second, third and fourth OLED. Each of the first, second, third and fourth OLEDs independently has a first electrode and a second electrode. Each OLED also independently has an organic emissive stack having an emitting material, disposed between the first and second electrodes; a first organic stack disposed between and in contact with the first electrode and the emissive stack; and a second organic stack disposed between and in contact with the second electrode and the emissive layer. The organic emissive stack of the first OLED, the organic emissive stack of the second OLED, the organic emissive stack of the third OLED, and the organic emissive stack of the fourth OLED each have different emissive spectra. The first organic stack of the first OLED, the first organic stack of the second OLED, and the first organic stack of the third OLED are different from each other in materials or thickness, or both. The first organic stack of the third OLED and the first organic stack of the fourth OLED are the same. | 09-29-2011 |
20110240984 | OLED STABILITY VIA DOPED HOLE TRANSPORT LAYER - An organic light emitting device is provided. The device includes an anode and a cathode. A first organic layer is disposed between the anode and the cathode. The first organic layer is an emissive layer that includes a first organic emitting material. The device also includes a second organic layer disposed between the anode and the first organic layer. The second organic layer is a non-emissive layer. The second organic layer includes an organic small molecule hole transport material having a concentration of 50 to 99 wt %, and an organic small molecule electron transport material having a concentration of 0.1 to 5 wt %. Other materials may be present. | 10-06-2011 |
20110248250 | 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 is provided between a cathode and an anode, where the organic thin film layer comprises at least one light emitting layer, and the at least one light emitting layer comprises (a) a host material represented by the following Formula (1): Ra—Ar | 10-13-2011 |
20110248294 | NOVEL OLED DISPLAY ARCHITECTURE - A device that may be used as a multi-color pixel is provided. The device has a first organic light emitting device, a second organic light emitting device, a third organic light emitting device, and a fourth organic light emitting device. The device may be a pixel of a display having four sub-pixels. The first device may emit red light, the second device may emit green light, the third device may emit light blue light and the fourth device may emit deep blue light. The device includes a first device plane and a second device plane. The first device plane comprises a plurality of the first organic light emitting device and a plurality of the second organic light emitting device. The second device plane comprises a plurality of at least one of the third organic light emitting device and the fourth organic light emitting device. The planes of the first and second device planes are parallel. The second device plane is transposed from the first device plane in a direction perpendicular to the planes of the first and second device planes. The first and second device planes are superposed. | 10-13-2011 |
20110284899 | Organic Light Emitting Device Lighting Panel - A first device that may include one or more organic light emitting devices. At least 65 percent of the photons emitted by the organic light emitting devices are emitted from an organic phosphorescent emitting material. An outcoupling enhancer is optically coupled to each organic light emitting device. In one embodiment, the light panel is not attached to a heat management structure. In one embodiment, the light panel is capable of exhibiting less than a 10 degree C. rise in junction temperature when operated at a luminous emittance of 9,000 lm/m | 11-24-2011 |
20120319145 | Non-Common Capping Layer on an Organic Device - A first method comprises providing a plurality of organic light emitting devices (OLEDs) on a first substrate. Each of the OLEDs includes a transmissive top electrode. The plurality of OLEDs includes a first portion of OLEDs and a second portion of OLEDs that is different from the first portion. The first method further includes depositing a first capping layer over at least the first portion of the plurality of OLEDs such that the first capping layer is optically coupled to at least the first portion of the plurality of OLEDs. A second capping layer is deposited over at least the second portion of the plurality of OLEDs such that the second capping layer is optically coupled to the second portion of the plurality of OLEDs but not the first portion of the plurality of OLEDs. | 12-20-2012 |
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 |
20130105774 | OLED DISPLAYS FOR ACCURATE GRAY SCALES | 05-02-2013 |
20130105777 | REDUCING OLED DEVICE EFFICIENCY AT LOW LUMINANCE | 05-02-2013 |
20130105833 | NOVEL OLED DISPLAY ARCHITECTURE | 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 |
20140021449 | PHOSPHORESCENT MATERIALS - Novel organic compounds containing a twisted aryl group are provided. In particular, the compounds provided contain a 2-phenylpyridine ligand having a twisted aryl group on the pyridine portion of the ligand. The compounds may be used in organic light emitting devices, particularly as emitting dopants. Devices comprising the compounds containing twisted aryl may demonstrate improved color, efficiency, stability and manufacturing. Additionally, methods are provided for making homoleptic Ir (III) compounds which may contain a twisted aryl. | 01-23-2014 |
20140073076 | STABLE BLUE PHOSPHORESCENT ORGANIC LIGHT EMITTING DEVICES - Novel combination of materials and device architectures for organic light emitting devices are provided. In some aspects, specific charge carriers and solid state considerations are features that may result in a device having an unexpectedly long lifetime. In some aspects, emitter purity is a feature that may result in devices having unexpectedly long lifetime. In some aspects, structural and optical considerations are features that may result in a device having an unexpectedly long lifetime. In some aspects, an emissive layer including an organic phosphorescent emissive dopant and an organic carbazole host material results in devices having an unexpectedly long lifetime. | 03-13-2014 |
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 |
20140131676 | IRIDIUM COMPLEXES WITH AZA-BENZO FUSED LIGANDS - Novel iridium complexes containing phenylpyridine and pyridyl aza-benzo fused ligands are described. These complexes are useful as light emitters when incorporated into OLEDs. | 05-15-2014 |
20150021582 | NON-COMMON CAPPING LAYER ON AN ORGANIC DEVICE - A first method comprises providing a plurality of organic light emitting devices (OLEDs) on a first substrate. Each of the OLEDs includes a transmissive top electrode. The plurality of OLEDs includes a first portion of OLEDs and a second portion of OLEDs that is different from the first portion. The first method further includes depositing a first capping layer over at least the first portion of the plurality of OLEDs such that the first capping layer is optically coupled to at least the first portion of the plurality of OLEDs. A second capping layer is deposited over at least the second portion of the plurality of OLEDs such that the second capping layer is optically coupled to the second portion of the plurality of OLEDs but not the first portion of the plurality of OLEDs. | 01-22-2015 |
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 |
20150214281 | OLEDS FOR USE IN NVIS CAPABLE DEVICES - A device is provided with a first OLED having a peak wavelength in the range 500-600 nm and a second OLED having a peak wavelength in the range 400-500 nm. Less than 2% of the light emitted by the first OLED has a wavelength of 650 nm or longer and less than 2% of the light emitted by the second OLED has a wavelength of 650 nm or longer. | 07-30-2015 |
20150236276 | Organic Electroluminescent Materials and Devices - The present invention relates to metal complexes having novel ligands. The compounds are useful in organic light emitting devices (OLEDs), particularly as emitting dopants. The incorporation of these novel ligands provides red phosphorescent materials with good external quantum efficiency, good color, and long lifetime. | 08-20-2015 |
20150295197 | Efficient Organic Electroluminescent Devices - An OLED device includes, in order, an electron blocking layer, an organic emissive layer, and a hole blocking layer. Its organic emissive layer contains at least four components: an electron transporting compound, a host, a hole transporting compound, and an emitting compound capable of phosphorescence emission at room temperature. The emitting compound has HOMO energy level of 5.2 eV or lower and a LUMO energy level of 2.5 eV or higher. | 10-15-2015 |
20150295199 | Efficient Organic Electroluminescent Devices - An OLED includes a suppression mechanism and multiple dopants in its organic emissive layer. The organic emissive layer includes a host, a first compound capable of phosphorescent emission at room temperature, and a second compound capable of phosphorescent emission at room temperature. The suppression mechanism is capable of preferentially reducing the emission of light emitted by the second compound. The organic emissive layer may also contain a third compound capable of phosphorescent emission at room temperature. | 10-15-2015 |
20150303395 | ORGANIC LIGHT EMITTING DEVICES - The present invention provides an emissive region in organic light emitting devices having a combined emission from at least two emissive materials, a fluorescent blue emissive material and a phosphorescent emissive material. The emissive region may further comprise additional fluorescent or phosphorescent emissive materials. Preferably, the emissive region has three different emissive materials—a red emissive material, a green emissive material and a blue emissive material. Organic light emitting devices incorporating the emissive region provides a high color-stability of the light emission over a wide range of currents or luminances. | 10-22-2015 |
20150307535 | PHOSPHORESCENT MATERIALS - Novel organic compounds containing a twisted aryl group are provided. In particular, the compounds provided contain a 2-phenylpyridine ligand having a twisted aryl group on the pyridine portion of the ligand. The compounds may be used in organic light emitting devices, particularly as emitting dopants. Devices comprising the compounds containing twisted aryl may demonstrate improved color, efficiency, stability and manufacturing. Additionally, methods are provided for making homoleptic Ir (III) compounds which may contain a twisted aryl. | 10-29-2015 |
20160093808 | ORGANIC ELECTROLUMINESCENT MATERIALS AND DEVICES - A mixture containing three different compounds that is useful as a stable co-evaporation source material for a vacuum deposition tool is disclosed. The mixture comprises a first compound; a second compound; and a third compound that are all organic compounds and have different chemical structures from each other and each has an evaporation temperature T | 03-31-2016 |
Patent application number | Description | Published |
20110012095 | NON-BLOCKED PHOSPHORESCENT OLEDS - An organic light emitting diode (OLED) architecture in which efficient operation is achieved without requiring a blocking layer by locating the recombination zone close to the hole transport side of the emissive layer. Aryl-based hosts and Ir-based dopants with suitable concentrations result in an efficient phosphorescent OLED structure. Previously, blocking layer utilization in phosphorescent OLED architectures was considered essential to avoid exciton and hole leakage from the emissive layer, and thus keep the recombination zone inside the emissive layer to provide high device efficiency and a pure emission spectrum. | 01-20-2011 |
20110057171 | Long lifetime Phosphorescent Organic Light Emitting Device (OLED) Structures - An organic light emitting device is provided having an emissive layer with an internal interface. The concentration of a second phosphorescent material in a second organic layer is different from the concentration of a first phosphorescent material in a first organic layer, creating the interface. The materials in the first and second organic layers may be the same or different. In addition to this interface within the emissive layer, the device has one or more features designed to mitigate failure mechanisms which may be associated with electrons or excitons passing from the cathode through the emissive layer to damage organic layers on the anode side of the emissive layer. In addition, devices are provided having an interface within the emissive layer as described above, and a lower energy emissive material on at least one side of the interface. | 03-10-2011 |
20110062462 | Novel Device Structure - Organic light emitting devices are provided having multiple subpixels. An organic spacer layer is provided in at least one subpixel to protect the emissive layer of the at least one subpixel from overspray due to the deposition of a different emissive layer in a nearby subpixel. More generally, a first device is provided, where the first device comprises a multicolor organic light emitting device. The first device may be the multicolor organic device itself. Or, the first device may be a larger device, such as a consumer device, that includes one or many of the multicolor organic devices. The multicolor organic light emitting, device further comprises multiple subpixels. In the most general case, there are at least a first subpixel and a second subpixel. | 03-17-2011 |
20140077163 | VERY HIGH RESOLUTION AMOLED DISPLAY - OLED displays having a resolution of 300 dpi, 400 dpi, or greater are provided. Devices as disclosed may use one or more transistors, such as metal oxide transistors, which have a leakage current of not more than about 10 | 03-20-2014 |
20140077164 | OLED FABRICATION USING LASER TRANSFER - Techniques for fabricating organic light emitting devices, and devices fabricating using the disclosed techniques, are provided. In the disclosed techniques, a layer including an emissive material and a buffer material may be deposited in a single laser transfer process, such as a laser-induced thermal imaging process. The emissive and buffer materials may be deposited in discrete layers during the transfer process. Examples of buffer materials as disclosed include blocking materials, transfer materials, and the like. Additional layers may be deposited using conventional techniques or additional laser transfer processes. | 03-20-2014 |
20140077177 | LIFETIME OLED DISPLAY - Light emitting devices including sub-pixels having different numbers of emissive layers are provided. At least one sub-pixel of a first color may include a single emissive layer, and at least one sub-pixel of a second color may include multiple emissive layers disposed in a vertical stack. Light emitting devices in which different voltages are applied to each sub-pixel or group of sub-pixels are also provided. In some configurations, the voltage to be applied to a sub-pixel may be selected based upon the number of emissive layers in the sub-pixel. | 03-20-2014 |
20140077688 | LOW IMAGE STICKING OLED DISPLAY - Devices and fabrication methods thereof are provided which reduce image sticking and/or improve lifetime and performance of blue emissive devices. Each device may include non-common transport layers between emissive devices, one or more optical capping layers, light and deep blue emissive devices, a mixed host emissive layer, a high T1 transport layer, and/or a stacked blue device in conjunction with single emissive layer red and/or green devices. The provided structures may be used individually, in combination, or as a group in a single device. | 03-20-2014 |
20140078126 | LIFETIME OLED DISPLAY - Light emitting devices including sub-pixels having different numbers of emissive layers are provided. At least one sub-pixel of a first color may include a single emissive layer, and at least one sub-pixel of a second color may include multiple emissive layers disposed in a vertical stack. Light emitting devices in which different voltages are applied to each sub-pixel or group of sub-pixels are also provided. In some configurations, the voltage to be applied to a sub-pixel may be selected based upon the number of emissive layers in the sub-pixel. | 03-20-2014 |
20140084269 | THREE STACK HYBRID WHITE OLED FOR ENHANCED EFFICIENCY AND LIFETIME - OLEDs containing a stacked hybrid architecture including a phosphorescent organic emissive unit and two fluorescent organic emissive units are disclosed. The stacked hybrid architecture includes a plurality of electrodes and a hybrid emissive stacked disposed between at least two of the electrodes. The stack contains at least three emissive units and at least two charge generation layers. At least one of the three emissive units is a phosphorescent organic emissive unit and at least two of the three emissive units are fluorescent organic emissive units. More specifically, the two fluorescent organic emissive units may be blue organic emissive units that emit light from the same or different color regions. | 03-27-2014 |
20140203244 | HIGH RESOLUTION LOW POWER CONSUMPTION OLED DISPLAY WITH EXTENDED LIFETIME - Arrangements of pixel components that allow for full-color devices, while using emissive devices that emit at not more than two colors, and/or a limited number of color altering layers, are provided. Devices disclosed herein also may be achieved using simplified fabrication techniques compared to conventional side-by-side arrangements, because fewer masking steps may be required. | 07-24-2014 |
20140209888 | HIGH RESOLUTION LOW POWER CONSUMPTION OLED DISPLAY WITH EXTENDED LIFETIME - Arrangements of pixel components that allow for full-color devices, while using emissive devices that use blue color altering layers in conjunction with blue emissive regions, that emit at not more than two colors, and/or that use limited number of color altering layers, are provided. Devices disclosed herein also may be achieved using simplified fabrication techniques compared to conventional side-by-side arrangements, because fewer masking steps may be required. | 07-31-2014 |
20140231768 | Non-Blocked Phosphorescent OLEDs - An organic light emitting diode (OLED) architecture in which efficient operation is achieved without requiring a blocking layer by locating the recombination zone close to the hole transport side of the emissive layer. Aryl-based hosts and Ir-based dopants with suitable concentrations result in an efficient phosphorescent OLED structure. Previously, blocking layer utilization in phosphorescent OLED architectures was considered essential to avoid exciton and hole leakage from the emissive layer, and thus keep the recombination zone inside the emissive layer to provide high device efficiency and a pure emission spectrum. | 08-21-2014 |
20140327709 | HIGH RESOLUTION LOW POWER CONSUMPTION OLED DISPLAY WITH EXTENDED LIFETIME - Arrangements of pixel components that allow driving three or less of four or more sub-pixels to emit an original color signal are disclosed. A first projection of the original color signal may be projected onto the two sub-pixel's color space. The first projection may then be projected onto a second projection corresponding to the color space of a third pixel. The third pixel may be driven based on the second projection only two of the remaining at least three sub-pixels may be driven based on the third pixel being driven. | 11-06-2014 |
20150213747 | OLED COLOR TUNING BY DRIVING MODE VARIATION - Techniques, devices, and systems are provided that allow for driving a device such as an OLED in various pulsed modes in which a momentary luminance greater than an apparent luminance at which the OLED is to be driven is used. The use of one or more pulsed modes allows for the lifetime of the OLED to be extended and reduces image sticking. Pulsed modes are also provided that allow for color tuning of the device by activating different portions of one or more emissive areas of the device. | 07-30-2015 |
20150221704 | NOVEL AMOLED DISPLAY ARCHITECTURE - A device that may be used as a multi-color pixel is provided. The device has a first organic light emitting device, a second organic light emitting device, a third organic light emitting device, and a fourth organic light emitting device. The device may be a pixel of a display having four sub-pixels. The first device may emit red light, the second device may emit green light, the third device may emit light blue light and the fourth device may emit deep blue light. | 08-06-2015 |
20150295198 | Efficient White Organic Light Emitting Diodes with High Color Quality - Organic light emitting devices (OLEDs) are provided that include two red emissive dopants. The two dopants may be disposed within a common organic emissive layer in an OLED, or each may be disposed in a separate layer. Configurations including multiple layers having multiple dopants are also provided, in which a first red dopant is disposed in a separate organic layer from a second red dopant, and a common dopant of another color, such as green, is disposed in each organic layer. Devices as disclosed herein are capable of providing an R9 value of at least 80, and of providing white light with a CRI of at least 80. | 10-15-2015 |
20150340410 | Top Emission AMOLED Displays using Two Emissive Layers - Full-color pixel arrangements for use in devices such as OLED displays are provided, in which multiple sub-pixels are configured to emit different colors of light, with each sub-pixel having a different optical path length than some or all of the other sub-pixels within the pixel. | 11-26-2015 |
20150349032 | Low Power Consumption OLED Display - This disclosure relates to reduced power consumption OLED displays at reduced cost for reduced information content applications, such as wearable displays. Image quality for wearable displays can be different than for high information content smart phone displays and TVs, where the wearable display has an architecture that in includes, for example, an all phosphorescent device and/or material system that may be fabricated at reduced cost. The reduced power consumption can facilitate wireless and solar charging. | 12-03-2015 |
20150349034 | HIGH RESOLUTION LOW POWER CONSUMPTION OLED DISPLAY WITH EXTENDED LIFETIME - Systems and techniques are provided that allow for fabrication of full-color OLED displays that include only two colors of emissive regions and four or more sub-pixels within pixels of the device. Mask arrangements for fabricating such devices are also provided. | 12-03-2015 |