Patents by Inventor Peter Levermore
Peter Levermore has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Publication number: 20140231788Abstract: Embodiments described herein may provide for devices comprising a digitized OLED light source (900) and/or methods of manufacturing such devices. In some embodiments, a first method may be provided. The first method may include the steps of depositing a first conductive layer (902) over a substrate (901), depositing a first organic layer (904) comprising electroluminescent material over the first conductive layer, and depositing a first patterned image layer (903) over some but not all of the first conductive layer. The first patterned image layer may locally alter the emissive properties of the first organic layer, and the shape of the first patterned image layer may be based on a non-uniform visual image. The first method may further comprise the step of depositing a second conductive layer (905) over the first organic layer.Type: ApplicationFiled: September 23, 2011Publication date: August 21, 2014Applicant: UNIVERSAL DISPLAY CORPORATIONInventors: Emory Krall, Huiqing Pang, Ruiqing Ma, Peter Levermore
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Patent number: 8773013Abstract: Novel three dimensional OLEDs are provided. The OLEDs have two configurations, and are self supporting in the three dimensional configuration without the need for any external supports.Type: GrantFiled: May 12, 2011Date of Patent: July 8, 2014Assignee: Universal Display CorporationInventors: Kamala Rajan, Prashant Mandlik, Huiqing Pang, Peter Levermore, Paul E. Burrows, Ruiqing Ma
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Patent number: 8764239Abstract: Flexible substrates bearing OLEDs are provided. The flexible substrates are attached to support structures that, when moved, cause the flexible structures to change shape and to thereby change the distribution of radiant intensity emanating from the OLEDs on the flexible substrates.Type: GrantFiled: August 16, 2011Date of Patent: July 1, 2014Assignee: Universal Display CorporationInventors: Paul E. Burrows, Huiqing Pang, Peter A. Levermore, Ruiqing Ma
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Patent number: 8710518Abstract: A first device and methods for manufacturing the first device are provided. The first device may comprise a flexible substrate and at least one organic light emitting device (OLED) disposed over the flexible substrate. The first device may have a flexural rigidity between 10?1 Nm and 10?6 Nm, and the ratio of the critical strain energy release rate to the material density factor for the first device may be greater than 0.05 J m/Kg.Type: GrantFiled: May 11, 2012Date of Patent: April 29, 2014Assignee: Universal Display CorporationInventors: Prashant Mandlik, Peter Levermore, Huiqing Pang, Emory Krall, Jason Paynter, Ruiqing Ma
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Publication number: 20140091282Abstract: Systems and methods for the design and fabrication of OLEDs, including high-performance large-area OLEDs, are provided. Variously described fabrication processes may be used to deposit and pattern bus lines with a smooth profile and a gradual sidewall transition. Such smooth profiles may, for example, reduce the probability of electrical shorting at the bus lines. Accordingly, in certain circumstances, an insulating layer may no longer be considered essential, and may be optionally avoided altogether. In cases where an insulating layer is not used, further enhancements in the emissive area and shelf life of the device may be achieved as well. According to aspects of the invention, bus lines such as those described herein may be deposited, and patterned, using vapor deposition such as vacuum thermal evaporation (VTE) through a shadow mask, and may avoid multiple photolithography steps.Type: ApplicationFiled: March 7, 2013Publication date: April 3, 2014Applicant: Universal Display Corporation (027166)Inventors: Peter Levermore, Huiqing Pang, Emory Krall, Rajan Kamala, Ruiqing Ma, Paul E. Burrows
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Patent number: 8664970Abstract: A method for accelerated life testing of organic devices is provided. The lifetime of each of one or more individual organic emissive devices is measured at a non-heating current density. Based upon the measured lifetimes of the one or more devices, the device lifetime is determined for a selected luminance. An organic emissive panel is also obtained having a second organic stack that consists essentially of the one or more organic layers of the first organic stack. The junction temperature of the organic emissive panel is then determined at a heating current density. Based upon the junction temperature and the device lifetime of the one or more individual organic emissive devices, the expected lifetime of the organic emissive panel is then determined at the heating current density.Type: GrantFiled: March 14, 2011Date of Patent: March 4, 2014Assignee: Universal Display CorporationInventors: Peter Levermore, Huiqing Pang, Lech Michalski, Mike Weaver
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Patent number: 8622562Abstract: Systems and methods for OLED lighting panels are provided in which a light extraction block is optically coupled to a light source. The light extraction block includes a plurality of non-parallel light emitting surface normals. At least one light diffusing layer covers a surface of the light extraction block. The light diffusing layer may be positioned, for example, on a light emitting surface of the light extraction block and/or on a mating surface of the light extraction block. The plurality of light emitting surface normals may be located on different non-parallel light emitting surfaces of the light extraction block, or on different points of a curved emitting surface. All of the light emitting surfaces and/or the mating surface, of the light extraction block may be covered by a light diffusing layer. The optical emission intensity and/or the optical emission color from the plurality of light emitting surface normals may be substantially equal.Type: GrantFiled: December 23, 2010Date of Patent: January 7, 2014Assignee: Universal Display CorporationInventor: Peter Levermore
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Publication number: 20130278144Abstract: Embodiments may provide a first device that may comprise a substrate, a plurality of conductive bus lines disposed over the substrate, and a plurality of OLED circuit elements disposed on the substrate, where each of the OLED circuit elements comprises one and only one pixel electrically connected in series with a fuse. Each pixel may further comprise a first electrode, a second electrode, and an organic electroluminescent (EL) material disposed between the first and the second electrodes. The fuse of each of the plurality of OLED circuit elements may electrically connect each of the OLED circuit elements to at least one of the plurality of bus lines. Each of the plurality of bus lines may be electrically connected to a plurality of OLED circuit elements that are commonly addressable and at least two of the bus lines may be separately addressable.Type: ApplicationFiled: August 20, 2012Publication date: October 24, 2013Applicant: Universal Display CorporationInventors: Peter Levermore, Huiqing Pang, Kamala Rajan
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Patent number: 8564192Abstract: Systems and methods for the design and fabrication of OLEDs, including high-performance large-area OLEDs, are provided. Variously described fabrication processes may be used to deposit and pattern bus lines and/or insulators using vapor deposition such as vacuum thermal evaporation (VTE) through a shadow mask, and may avoid multiple photolithography steps. Bus lines and/or insulators may be formed with a smooth profile and a gradual sidewall transition. Such smooth profiles may, for example, reduce the probability of electrical shorting at the bus lines. Other vapor deposition systems and methods may include, among others, sputter deposition, e-beam evaporation and chemical vapor deposition (CVD). A final profile of the bus line and/or insulator may substantially correspond to the profile as deposited. A single OILED devices may also be formed with relatively large dimension.Type: GrantFiled: May 10, 2012Date of Patent: October 22, 2013Assignee: Universal Display CorporationInventors: Huiqing Pang, Emory Krall, Kamala Rajan, Paul E. Burrows, Ruiqing Ma, Peter Levermore
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Patent number: 8564001Abstract: 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/m2 without the use of heat management structures, regardless of whether the light panel is actually attached to a heat management structure or not. The light panel may be attached to a heat management structure. The light panel may be not attached to a heat management structure.Type: GrantFiled: May 18, 2011Date of Patent: October 22, 2013Assignee: Universal Display CorporationInventors: Michael Hack, Julia J. Brown, Peter Levermore, Michael S. Weaver
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Patent number: 8552420Abstract: Embodiments may provide a light source with a controlled brightness variation. A first device is provided that includes a substrate and a plurality of OLEDs disposed on the substrate. Each of the OLEDs includes a first electrode, a second electrode, and an organic electroluminescent (EL) material disposed between the first and the second electrodes. The plurality of OLEDs comprise a first group and a second group where a first current density is supplied to the first group of the plurality of OLEDs and a second current density that is different from the first current density is supplied to the second group of the plurality of OLEDs. Each of the plurality of OLEDs is commonly addressable and at least one of the OLEDs in the first group of OLEDs has substantially the same device structure as at least one of the OLEDs in the second group of OLEDs.Type: GrantFiled: August 9, 2011Date of Patent: October 8, 2013Assignee: Universal Display CorporationInventors: Peter Levermore, Paul E. Burrows, Huiqing Pang, Emory Krall, Ruiqing Ma
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Patent number: 8502445Abstract: A first device is provided that includes a first light source that has at least one organic light emitting device that may emit near white light having a correlated color temperature (CCT) that is less than 6504K. The first device may also have a plurality of pixels comprising a first sub-pixel having a color filter in optical communication with the first light source that passes light having a peak wavelength between 400 and 500 nm. A second sub-pixel having a color filter in optical communication with the first light source that passes light having a peak wavelength between 500 and 580 nm. A third sub-pixel having a color filter in optical communication with the first light source that passes light having a peak wavelength between 580 and 700 nm. A fourth sub-pixel that emits near white light that may have a CCT that is less than 6504 K.Type: GrantFiled: July 18, 2011Date of Patent: August 6, 2013Assignee: Universal Display CorporationInventors: Peter Levermore, Woo-Young So, Michael Weaver, Michael Hack
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Patent number: 8432095Abstract: Systems and methods for the design and fabrication of OLEDs, including high-performance large-area OLEDs, are provided. Variously described fabrication processes may be used to deposit and pattern bus lines with a smooth profile and a gradual sidewall transition. Such smooth profiles may, for example, reduce the probability of electrical shorting at the bus lines. Accordingly, in certain circumstances, an insulating layer may no longer be considered essential, and may be optionally avoided altogether. In cases where an insulating layer is not used, further enhancements in the emissive area and shelf life of the device may be achieved as well. According to aspects of the invention, bus lines such as those described herein may be deposited, and patterned, using vapor deposition such as vacuum thermal evaporation (VTE) through a shadow mask, and may avoid multiple photolithography steps.Type: GrantFiled: May 11, 2011Date of Patent: April 30, 2013Assignee: Universal Display CorporationInventors: Huiqing Pang, Peter Levermore, Kamala Rajan, Emory Krall, Ruiqing (Ray) Ma, Paul E. Burrows
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Publication number: 20130070440Abstract: A first device is provided. The first device may include a first light source comprising one or more organic light emitting devices and a gobo that is optically coupled to the first light source. The gobo may allow differential transmission of light emitted by different parts of the first light source so as to create a fixed variation in the light emitted by the first device.Type: ApplicationFiled: September 21, 2011Publication date: March 21, 2013Applicant: Universal Display CorporationInventors: Peter Levermore, Emory Krall
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Publication number: 20130048961Abstract: A light emitting device with high light emission uniformity is disclosed. The device contains a first electrically conductive layer having a positive polarity and an electrically conductive uniformity enhancement layer in contact with the first electrically conductive layer. The device also contains a second electrically conductive layer having a negative polarity and a light-emitting structure situated between the first and the second electrically conductive layers. The light-emitting structure contains an organic material in direct contact with the second electrically conductive layer. The uniformity enhancement layer transmits essentially all wavelengths of light emitted by the light-emitting structure. Compared to devices lacking a uniformity enhancement layer, the device exhibits higher spatial uniformity in luminance and in color spectrum.Type: ApplicationFiled: February 3, 2010Publication date: February 28, 2013Applicant: Univeral Display CorporationInventors: Kamala Rajan, Peter Levermore, Ruiqing Ma
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Publication number: 20130044487Abstract: Flexible substrates bearing OLEDs are provided. The flexible substrates are attached to support structures that, when moved, cause the flexible structures to change shape and to thereby change the distribution of radiant intensity emanating from the OLEDs on the flexible substrates.Type: ApplicationFiled: August 16, 2011Publication date: February 21, 2013Applicant: Universal Display CorporationInventors: Paul E. Burrows, Huiqing Pang, Peter A. Levermore, Ruiqing Ma
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Publication number: 20130037827Abstract: Embodiments may provide a light source with a controlled brightness variation. A first device is provided that includes a substrate and a plurality of OLEDs disposed on the substrate. Each of the OLEDs includes a first electrode, a second electrode, and an organic electroluminescent (EL) material disposed between the first and the second electrodes. The plurality of OLEDs comprise a first group and a second group where a first current density is supplied to the first group of the plurality of OLEDs and a second current density that is different from the first current density is supplied to the second group of the plurality of OLEDs. Each of the plurality of OLEDs is commonly addressable and at least one of the OLEDs in the first group of OLEDs has substantially the same device structure as at least one of the OLEDs in the second group of OLEDs.Type: ApplicationFiled: August 9, 2011Publication date: February 14, 2013Applicant: Universal Display CorporationInventors: PETER LEVERMORE, Paul E. Burrows, Huiqing Pang, Emory Krall, Ruiqing Ma
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Publication number: 20130020933Abstract: A first device is provided that includes a first light source that has at least one organic light emitting device that may emit near white light having a correlated color temperature (CCT) that is less than 6504K. The first device may also have a plurality of pixels comprising a first sub-pixel having a color filter in optical communication with the first light source that passes light having a peak wavelength between 400 and 500 nm. A second sub-pixel having a color filter in optical communication with the first light source that passes light having a peak wavelength between 500 and 580 nm. A third sub-pixel having a color filter in optical communication with the first light source that passes light having a peak wavelength between 580 and 700 nm. A fourth sub-pixel that emits near white light that may have a CCT that is less than 6504 K.Type: ApplicationFiled: July 18, 2011Publication date: January 24, 2013Applicant: Universal Display CorporationInventors: Peter Levermore, Woo-Young So, Michael Weaver, Michael Hack
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Patent number: 8334545Abstract: 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.Type: GrantFiled: August 9, 2010Date of Patent: December 18, 2012Assignee: Universal Display CorporationInventors: Peter Levermore, Michael S. Weaver
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Publication number: 20120286302Abstract: A first device and methods for manufacturing the first device are provided. The first device may comprise a flexible substrate and at least one organic light emitting device (OLED) disposed over the flexible substrate. The first device may have a flexural rigidity between 10?1 Nm and 10?6 Nm, and the ratio of the critical strain energy release rate to the material density factor for the first device may be greater than 0.05 J m/Kg.Type: ApplicationFiled: May 11, 2012Publication date: November 15, 2012Applicant: Universal Display CorporationInventors: Prashant Mandlik, Peter Levermore, Huiqing Pang, Emory Krall, Jason Paynter, Ruiqing Ma