Patents by Inventor Kevin Klubek

Kevin Klubek 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).

  • Publication number: 20070252522
    Abstract: An electroluminescent device comprises a cathode, an anode, and has therebetween a light emitting layer (LEL), the device further containing an electron transport layer (ETL) comprising an anthracene compound on the cathode side of the LEL and an organic electron injection layer (EIL) between the ETL and the cathode comprising a phenanthroline compound, wherein the thickness of the EIL and LEL are such that the ratio of the thickness of the EIL to LEL is greater than 0.125.
    Type: Application
    Filed: April 27, 2006
    Publication date: November 1, 2007
    Inventors: Denis Kondakov, Scott Conley, Kevin Klubek
  • Publication number: 20070252521
    Abstract: An electroluminescent device comprises a cathode, an anode, and has therebetween a light emitting layer (LEL), the device further containing an electron transport layer (ETL) on the cathode side of the LEL and an organic electron injection layer (EIL) contiguous to the ETL on the cathode side, wherein the ETL contains a monoanthracene compound bearing aromatic groups in the 2-, 9-, and 10-positions.
    Type: Application
    Filed: April 27, 2006
    Publication date: November 1, 2007
    Inventors: Denis Kondakov, Scott Conley, Kevin Klubek, J. Vargas
  • Publication number: 20070252516
    Abstract: An OLED device comprises a cathode, an anode, and has therebetween a light emitting layer (LEL) comprising a phosphorescent emitting compound disposed in a host comprising a mixture of at least one electron transporting co-host and at least one hole transporting co-host, wherein there is present an electron transporting layer contiguous to the LEL on the cathode side and wherein there is present an EIL layer containing a heteroaromatic compound contiguous to the cathode.
    Type: Application
    Filed: April 27, 2006
    Publication date: November 1, 2007
    Inventors: Marina Kondakova, Denis Kondakov, Ralph Young, Christopher Brown, Kevin Klubek, Viktor Jarikov, Sheena Zuberi
  • Publication number: 20070207347
    Abstract: An OLED device comprises a cathode, a light emitting layer and an anode, in that order, and, has located between the cathode and the light emitting layer, a further layer containing a cyclometallated complex represented by Formula (4?) wherein: Z and the dashed arc represent two or three atoms and the bonds necessary to complete a 5- or 6-membered ring with M; each A represents H or a substituent and each B represents an independently selected substituent on the Z atoms, provided that two or more substituents may combine to form a fused ring or a fused ring system; j is 0-3 and k is 1 or 2; M represents a Group IA, IIA, IIIA and IIB element of the Periodic Table; m and n are independently selected integers selected to provide a neutral charge on the complex; and provided that the complex does not contain the 8-hydroxyquinolate ligand. Such devices exhibit reduce drive voltage while maintaining good luminance.
    Type: Application
    Filed: April 30, 2007
    Publication date: September 6, 2007
    Inventors: William Begley, Tukaram Hatwar, Liang-Sheng Liao, Jeffrey Spindler, Kevin Klubek, Manju Rajeswaran, Natasha Andrievsky
  • Publication number: 20070141393
    Abstract: An OLED device comprises a cathode, an anode, and having therebetween a light emitting layer, the device further comprising a layer on the cathode side of the emitting layer containing an anthracene compound bearing a diarylamine group; provided either (1) there is present an organic layer contiguous to the cathode that is substantially free of an anthracene compound bearing a diarylamine group, or (2) there are present independently selected diarylamine groups in both the 9- and 10-positions of the anthracene. The invention provides an improved combination of efficiency, operational lifetime, and lower operational voltage.
    Type: Application
    Filed: December 21, 2005
    Publication date: June 21, 2007
    Inventors: Kevin Klubek, Denis Kondakov
  • Publication number: 20070134512
    Abstract: An OLED device comprises a cathode, an anode, and located therebetween a light emitting layer, the device comprising a further layer between the light-emitting layer and the anode but not contiguous to the light-emitting layer, the further layer containing a 2,6-diamino-substituted anthracene compound and containing a larger volume percentage of the 2,6-diamino-substituted anthracene compound than the layer contiguous to the light-emitting layer on the anode side.
    Type: Application
    Filed: December 13, 2005
    Publication date: June 14, 2007
    Inventors: Kevin Klubek, Liang-Sheng Liao, Viktor Jarikov
  • Publication number: 20070126347
    Abstract: An organic light-emitting device, comprising a substrate; an anode and a cathode; a first hole-transport layer provided over the anode and having at least a first material; a second hole-transport layer provided over the first hole-transport layer, and having at least a second material; at least one light-emitting layer disposed over the second hole-transport layer wherein the light-emitting layer(s) includes a host, a dopant, and a hole-trapping material; an improved electron-transport layer disposed between the light-emitting layer(s) and the cathode.
    Type: Application
    Filed: December 1, 2005
    Publication date: June 7, 2007
    Inventors: Viktor Jarikov, Kevin Klubek, Liang-Sheng Liao
  • Publication number: 20070122657
    Abstract: An OLED device comprises a cathode, an anode, and a light-emitting layer therebetween, and additionally comprises a layer between the cathode and the light-emitting layer including a phenanthroline compound comprising no more than two optionally substituted phenanthroline moieties wherein one and only one group substituted on a phenanthroline nucleus includes an aromatic system comprising four or more fused aromatic rings. Such a device provides desirable electroluminescent properties, such as increased luminance and reduced drive voltage, as well as good device stability.
    Type: Application
    Filed: November 30, 2005
    Publication date: May 31, 2007
    Inventors: Kevin Klubek, Denis Kondakov
  • Publication number: 20070122656
    Abstract: An OLED device comprises a cathode, an anode, and a light-emitting layer therebetween, and additionally comprises a layer between the cathode and the light-emitting layer including a compound comprising one and only one anthracene nucleus bearing no more than two phenanthroline-containing substituents wherein said anthracene nucleus is substituted in the 2-, 3-, 6-, or 7-position with a phenanthroline-containing substituent. When such materials are included in a layer, such as an electron-transporting layer, that provide both desirable electroluminescent properties as well as good device stability.
    Type: Application
    Filed: November 30, 2005
    Publication date: May 31, 2007
    Inventors: Kevin Klubek, Denis Kondakov
  • Publication number: 20070092759
    Abstract: An OLED device comprises a cathode, a light emitting layer and an anode, in that order, and, has located between the cathode and the light emitting layer, a further layer containing a cyclometallated complex represented by Formula (4?) wherein: Z and the dashed arc represent two or three atoms and the bonds necessary to complete a 5- or 6-membered ring with M; each A represents H or a substituent and each B represents an independently selected substituent on the Z atoms, provided that two or more substituents may combine to form a fused ring or a fused ring system; j is 0-3 and k is 1 or 2; M represents a Group IA, IIA, IIIA and IIB element of the Periodic Table; m and n are independently selected integers selected to provide a neutral charge on the complex; and provided that the complex does not contain the 8-hydroxyquinolate ligand. Such devices exhibit reduce drive voltage while maintaining good luminance.
    Type: Application
    Filed: August 9, 2006
    Publication date: April 26, 2007
    Inventors: William Begley, Tukaram Hatwar, Liang-Sheng Liao, Jeffrey Spindler, Kevin Klubek
  • Publication number: 20060240281
    Abstract: An OLED includes an anode formed over a substrate and a contaminant-scavenging layer formed over the anode, wherein the contaminant-scavenging layer includes one or more organic materials but not a hexaazatriphenylene derivative, each having an electron-accepting property and a reduction potential greater than ?0.1 V vs. a Saturated Calomel Electrode, and wherein the one or more organic materials provide more than 50% by mole ratio of the contaminant-scavenging layer. The OLED also includes an organic electroluminescent unit formed over the contaminant-scavenging layer, wherein the organic electroluminescent unit includes a hole-transporting layer, a light-emitting layer, and an electron-transporting layer, and a cathode formed over the organic electroluminescent unit.
    Type: Application
    Filed: April 21, 2005
    Publication date: October 26, 2006
    Inventors: Liang-Sheng Liao, Kevin Klubek, Wojciech Slusarek, Tukaram Hatwar
  • Publication number: 20060240280
    Abstract: An OLED includes an anode formed over a substrate, wherein the anode is a non-oxygen-treated anode and an anode modification layer formed in direct contact with the anode, wherein the anode modification layer includes one or more organic materials, each having an electron-accepting property and a reduction potential greater than 0.0 V vs. a Saturated Calomel Electrode, and wherein the one or more organic materials provide more than 50% by mole ratio of the anode modification layer. The OLED also includes an organic electroluminescent unit formed over the anode modification layer, wherein the organic electroluminescent unit includes at least a hole-transporting layer and a light-emitting layer, and a cathode formed over the organic electroluminescent unit.
    Type: Application
    Filed: April 21, 2005
    Publication date: October 26, 2006
    Inventors: Liang-Sheng Liao, Kevin Klubek, Wojciech Slusarek
  • Publication number: 20060181202
    Abstract: An OLED device comprising an anode and a cathode spaced from the anode, two EL units disposed between the anode and cathode, such EL units being in contact with each other and each having at least one light emitting layer; and each EL unit further includes a p-type doped organic hole transporting layer disposed between the light emitting layer and the anode, and an n-type doped organic electron transporting layer disposed between the light emitting layer and the cathode.
    Type: Application
    Filed: April 10, 2006
    Publication date: August 17, 2006
    Inventors: Liang-Sheng Liao, Kevin Klubek, Ching Tang
  • Publication number: 20060145604
    Abstract: A tandem OLED includes an anode, a cathode, and at least two electroluminescent units disposed between the anode and the cathode, wherein each of the electroluminescent units includes at least one hole-injecting layer, one hole-transporting layer, one organic light-emitting layer, one electron-transporting layer, and one electron-injecting layer. The OLED also includes at least one intermediate connector, wherein each of the intermediate connectors includes at least one layer, and wherein each of the intermediate connectors is disposed between electroluminescent units, wherein the thickness of each layer in each of the electroluminescent units and the intermediate connectors is selected to satisfy the test condition that the voltage drop from the anode to the cathode is less than 4.0 V×N (the number of electroluminescent units) at 20 mA/cm2.
    Type: Application
    Filed: January 3, 2005
    Publication date: July 6, 2006
    Inventors: Liang-Sheng Liao, Tukaram Hatwar, Kevin Klubek, J. Vargas, Dustin Comfort
  • Publication number: 20060141287
    Abstract: An organic light-emitting device includes a substrate, an anode and a cathode disposed over the substrate, and a light-emitting layer disposed between the anode and the cathode wherein the light-emitting layer includes a host and at least one dopant. The host of the light-emitting layer is selected to include a solid organic material including a mixture of at least two components wherein the first host component is an organic compound capable of transporting electrical charges and also forms an aggregate, and the second component of the mixture is an organic compound capable, of transporting electrical charges and, upon mixing with the first host component, is capable of forming a continuous and substantially pin-hole-free layer. The dopant of the light-emitting layer is selected to collect excitons and produce colored light, and an electron-transporting layer is disposed between the light-emitting layer and the cathode for providing improved electron injection and transport.
    Type: Application
    Filed: February 17, 2006
    Publication date: June 29, 2006
    Inventors: Kevin Klubek, Viktor Jarikov, Liang-Sheng Liao, Christopher Brown, Ching Tang
  • Publication number: 20060134460
    Abstract: An electroluminescent device comprises a cathode and an anode; and, located therebetween, a light-emitting layer (LEL) comprising at least one hole transporting co-host and at least one electron transporting co-host, together with at least one phosphorescent emitter, and wherein the triplet energy of each of the co-host materials is greater than the triplet energy of the phosphorescent emitter, and further containing an exciton blocking layer comprising a hole transporting material with triplet energy greater or equal to 2.5 eV adjacent the emitting layer on the anode side. The invention provides devices that emit light with high luminous efficiency at low voltage.
    Type: Application
    Filed: December 17, 2004
    Publication date: June 22, 2006
    Inventors: Marina Kondakova, Joseph Deaton, Christopher Brown, Kevin Klubek, Shouquan Huo
  • Publication number: 20060087225
    Abstract: A tandem white OLED includes an anode; a cathode; at least one broadband electroluminescent unit disposed between the anode and the cathode, wherein the broadband electroluminescent unit includes at least one light-emitting layer and produces at least one color component having an intensity less than desired; at least one color-compensating electroluminescent unit disposed between the anode and the cathode, wherein the color-compensating electroluminescent unit is selected to produce the at least one color component and to increase the color component intensity; and an intermediate connector disposed between each adjacent electroluminescent unit, wherein the intermediate connector has no direct connection to an external power source.
    Type: Application
    Filed: October 22, 2004
    Publication date: April 27, 2006
    Inventors: Liang-Sheng Liao, Tukaram Hatwar, Kevin Klubek, Dustin Comfort, Ching Tang
  • Publication number: 20060040131
    Abstract: An organic light-emitting device includes a substrate, an anode and a cathode disposed over the substrate, and a light-emitting layer disposed between the anode and the cathode wherein the light-emitting layer includes a host and at least one dopant. The host of the light-emitting layer is selected to include a solid organic material including a mixture of at least two components wherein the first host component is an organic compound capable of transporting electrical charges and also forms an aggregate, and the second component of the mixture is an organic compound capable of transporting electrical charges and, upon mixing with the first host component, is capable of forming a continuous and substantially pin-hole-free layer. The dopant of the light-emitting layer is selected to collect excitons and produce colored light, and an electron-transporting layer is disposed between the light-emitting layer and the cathode for providing improved electron injection and transport.
    Type: Application
    Filed: August 19, 2004
    Publication date: February 23, 2006
    Inventors: Kevin Klubek, Viktor Jarikov, Liang-Sheng Liao, Christopher Brown, Ching Tang
  • Publication number: 20060040132
    Abstract: A tandem white OLED device includes an anode, a cathode, and a plurality of organic electroluminescence units disposed between the anode and the cathode, wherein each organic electroluminescence unit includes at least one light-emitting layer, and wherein each organic electroluminescence unit emits white light. The device also includes an intermediate connector disposed between each adjacent organic electroluminescence unit, wherein the intermediate connector includes at least two different layers, and wherein the intermediate connector has no direct connection to an external power source.
    Type: Application
    Filed: August 20, 2004
    Publication date: February 23, 2006
    Inventors: Liang-Sheng Liao, Tukaram Hatwar, Kevin Klubek, Ching Tang
  • Publication number: 20050173700
    Abstract: A full-color organic display for displaying a color image, including an array of pixels arranged in repeating patterns, wherein each pixel has red, green, and blue light-emitting subpixels, and wherein each red and green light-emitting subpixel contains only one EL unit, while each blue light-emitting subpixel contains more than one vertically stacked EL unit.
    Type: Application
    Filed: February 6, 2004
    Publication date: August 11, 2005
    Inventors: Liang-Sheng Liao, Kevin Klubek, Ching Tang