Patents by Inventor Michael Büchel

Michael Büchel 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).

  • Patent number: 10651418
    Abstract: An organic light emitting diode comprising a first electrode layer, a second electrode layer, a stack of functional layers, including an organic light-emitting layer, sandwiched between said first electrode layer and said second electrode layer, and an passivation layer arranged adjacent to said first electrode layer is disclosed. The passivation layer reacts with the first electrode layer to form an oxide at a reaction temperature that is induced by an evolving short circuit between the first electrode layer and the second electrode layer. The passivation layer is unreactive at temperatures lower than the reaction temperature.
    Type: Grant
    Filed: February 14, 2017
    Date of Patent: May 12, 2020
    Assignee: BEIJING XIAOMI MOBILE SOFTWARE CO., LTD.
    Inventors: Soeren Hartmann, Michael Buechel, Thomas Juestel
  • Publication number: 20170155079
    Abstract: An organic light emitting diode comprising a first electrode layer, a second electrode layer, a stack of functional layers, including an organic light-emitting layer, sandwiched between said first electrode layer and said second electrode layer, and an passivation layer arranged adjacent to said first electrode layer is disclosed. The passivation layer reacts with the first electrode layer to form an oxide at a reaction temperature that is induced by an evolving short circuit between the first electrode layer and the second electrode layer. The passivation layer is unreactive at temperatures lower than the reaction temperature.
    Type: Application
    Filed: February 14, 2017
    Publication date: June 1, 2017
    Inventors: Soeren Hartmann, Michael Buechel, Thomas Juestel
  • Patent number: 9601716
    Abstract: An organic light emitting diode comprising a first electrode layer, a second electrode layer, a stack of functional layers, including an organic light-emitting layer, sandwiched between said first electrode layer and said second electrode layer, and an passivation layer arranged adjacent to said first electrode layer is disclosed. The passivation layer reacts with the first electrode layer to form an oxide at a reaction temperature that is induced by an evolving short circuit between the first electrode layer and the second electrode layer. The passivation layer is unreactive at temperatures lower than the reaction temperature.
    Type: Grant
    Filed: November 18, 2009
    Date of Patent: March 21, 2017
    Assignee: KONINKLIJKE PHILIPS N.V.
    Inventors: Soeren Hartmann, Michael Buechel, Thomas Juestel
  • Patent number: 8207055
    Abstract: A method for generating an electrode layer pattern in an organic functional device (101; 201) comprising a first transparent electrode layer (103; 203), a second electrode layer (104; 204) and an organic functional layer (102; 202) sandwiched between said first and second electrode layers (103, 104; 203, 204). The method comprises the steps of arranging (601) a laser (704; 804) to irradiate said organic functional device (701; 801) through said first transparent electrode layer (103; 203), selecting (602) a set of laser parameters in order to enable said laser (704; 804) to locally modify an electric conductivity of said second electrode layer (104; 204), and locally modifying, by said laser (704; 804) in accordance with said set of laser parameters, the electric conductivity of said second electrode layer (104; 204), thereby generating said electrode layer pattern.
    Type: Grant
    Filed: June 27, 2006
    Date of Patent: June 26, 2012
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Michael Büchel, Ivar Jacco Boerefijn, Edward Willem Albert Young, Adrianus Sempel
  • Publication number: 20110220957
    Abstract: An organic light emitting diode comprising a first electrode layer, a second electrode layer, a stack of functional layers, including an organic light-emitting layer, sandwiched between said first electrode layer and said second electrode layer, and an passivation layer arranged adjacent to said first electrode layer is disclosed. The passivation layer reacts with the first electrode layer to form an oxide at a reaction temperature that is induced by an evolving short circuit between the first electrode layer and the second electrode layer. The passivation layer is unreactive at temperatures lower than the reaction temperature.
    Type: Application
    Filed: November 18, 2009
    Publication date: September 15, 2011
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Soeren Hartmann, Michael Buechel, Thomas Juestel
  • Patent number: 7985966
    Abstract: An electro-optically active organic diode, for example an organic light emitting diode (OLED), comprises an anode electrode (102), a cathode electrode (122) and an electro-optically active organic layer (110) arranged in-between. A cover layer (124) is arranged in contact with a surface of the cathode layer (122) so that the cathode layer (122) is positioned between the organic layer (110) and the cover layer (124), which is formed of a substantially inert material with respect to a cathode layer (122) material in contact with said cover layer (124). The inert material is deposited on said surface of the cathode layer (122) so that the complete surface is covered and surface defects eliminated. A short protection layer (120) is further arranged between said cathode electrode (122) and said electro-optically active organic layer (110), and adjacent to said cathode electrode (122), and is formed of an inorganic semiconductor material.
    Type: Grant
    Filed: July 12, 2007
    Date of Patent: July 26, 2011
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Michael Buechel, Edward Willem Albert Young
  • Patent number: 7960723
    Abstract: A stacked electro-optically active organic diode has an anode electrode (102), a cathode electrode (162), a first electro-optically active organic layer (110) arranged between the electrodes (102, 162), and a second electro-optically active organic layer (130) arranged between said first active organic layer (110) and said cathode (162). A low electron affinity layer (120) is arranged between the first electro-optically active organic layer (110) and the second electro-optically active organic layer (130), and is formed of a first transparent inorganic semi-conductor material. A high electron affinity layer (121) is arranged between said second electro-optically active organic layer (130) and the low electron affinity layer (120), and is formed of a second transparent inorganic semiconductor material, wherein said second transparent inorganic semiconductor material has a higher electron affinity than said first inorganic semiconductor material.
    Type: Grant
    Filed: July 12, 2007
    Date of Patent: June 14, 2011
    Assignee: Koninklijke Philips Electronics N.V.
    Inventor: Michael Buechel
  • Patent number: 7750339
    Abstract: Provided is a filed-effect transistor with an organic semiconductor material showing ambipolar behaviour. Thereto, the organic semiconductor material enabling the ambipolar behaviour is a material with a small band gap.
    Type: Grant
    Filed: January 27, 2004
    Date of Patent: July 6, 2010
    Assignee: Polymer Vision Limited
    Inventors: Sepas Setayesh, Dagobert Michel De Leeuw, Michael Buechel, Thomas Dimitriou Anthopoulos, Wilhelmus Peter Martinus Nijssen, Eduard Johannes Meijer
  • Publication number: 20090321722
    Abstract: A stacked electro-optically active organic diode has an anode electrode (102), a cathode electrode (162), a first electro-optically active organic layer (110) arranged between the electrodes (102, 162), and a second electro-optically active organic layer (130) arranged between said first active organic layer (110) and said cathode (162). A low electron affinity layer (120) is arranged between the first electro-optically active organic layer (110) and the second electro-optically active organic layer (130), and is formed of a first transparent inorganic semi-conductor material. A high electron affinity layer (121) is arranged between said second electro-optically active organic layer (130) and the low electron affinity layer (120), and is formed of a second transparent inorganic semiconductor material, wherein said second transparent inorganic semiconductor material has a higher electron affinity than said first inorganic semiconductor material.
    Type: Application
    Filed: July 12, 2007
    Publication date: December 31, 2009
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N V
    Inventor: Michael Buechel
  • Publication number: 20090309095
    Abstract: An electro-optically active organic diode, for example an organic light emitting diode (OLED), comprises an anode electrode (102), a cathode electrode (122) and an electro-optically active organic layer (110) arranged in-between. A cover layer (124) is arranged in contact with a surface of the cathode layer (122) so that the cathode layer (122) is positioned between the organic layer (110) and the cover layer (124), which is formed of a substantially inert material with respect to a cathode layer (122) material in contact with said cover layer (124). The inert material is deposited on said surface of the cathode layer (122) so that the complete surface is covered and surface defects eliminated. A short protection layer (120) is further arranged between said cathode electrode (122) and said electro-optically active organic layer (110), and adjacent to said cathode electrode (122), and is formed of an inorganic semiconductor material.
    Type: Application
    Filed: July 12, 2007
    Publication date: December 17, 2009
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Michael Buechel, Edward Willem Albert Young
  • Publication number: 20090174323
    Abstract: An electro-optically active organic diode has anode electrode (102), a cathode electrode (122), an electro-optically active organic layer (110) arranged between the electrodes (102, 122) and a charge carrier organic layer (116) arranged between said electro-optically active organic layer (110) and said cathode electrode layer (122), and adjacent to said electro-optically active organic layer (110). The charge carrier organic layer (116) is formed of a highly doped organic semiconductor material. A short protection layer (120) is arranged between said cathode electrode layer (122) and said charge carrier organic layer (116), and adjacent to said cathode electrode layer (122), wherein said short protection layer (120) is formed of an inorganic semiconductor material. The short protection layer prevents direct contact between the cathode layer and the charge carrier organic layer, which reduces the risk that the cathode layer will have detrimental impact on the charge carrier organic layer.
    Type: Application
    Filed: July 13, 2007
    Publication date: July 9, 2009
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Michael Büchel, Dietrich Bertram
  • Publication number: 20070164256
    Abstract: The invention relates to an electroluminescent composition comprising an electroluminescent material containing an aryl vinylene and an additive for suppressing a drop in the initial efficiency of light emission observed when the electroluminescent material is used as such in an electroluminescent device. The invention further relates to an electroluminescent composition comprising an electroluminescent material containing an aryl vinylene and an additive, wherein the additive comprises an oligo ring structure with at least four carbonyl groups and to an electroluminescent device comprising the composition according to the invention.
    Type: Application
    Filed: March 2, 2005
    Publication date: July 19, 2007
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS, N.V.
    Inventors: Simone Vulto, Eric Meulenkamp, Peter Van De Weijer, Margaretha De Kok-Van Breemen, Michael Buechel
  • Publication number: 20060231828
    Abstract: The invention pertains to a light-emitting diode (LED) comprising layers of an anode, an acidic hole conducting-injecting material, a light-emitting polymer, and a cathode, characterized in that the hole conducting-injecting material comprises a poly(3,4-ethylenedioxythiophene poly(styrenesulfonate) (PEDOT), which is obtainable by at least partially neutralizing the PEDOT with an anion that is comprised or formed from a sodium or potassium compound, and the light-emitting material comprises a light-emitting p-arylenevinylene polymer (PAV). The invention further relates to a method for increasing the efficiency of said light-emitting diode.
    Type: Application
    Filed: July 29, 2004
    Publication date: October 19, 2006
    Inventors: Margaretha De Kok-Van Breemen, Michael Buechel, Suzanna De Winter, Simore Vulto
  • Publication number: 20060163561
    Abstract: Provided is a filed-effect transistor with an organic semiconductor material showing ambipolar behaviour. Thereto, the organic semiconductor material enabling the ambipolar behaviour is a material with a small band gap.
    Type: Application
    Filed: January 27, 2004
    Publication date: July 27, 2006
    Inventors: Sepas Setayesh, Dagobert De Leeuw, Michael Buechel, Thomas Anthopoulos, Wilhelmus Nijssen, Eduard Meijer
  • Patent number: 6586764
    Abstract: The invention pertains to an organic light emitting diode (LED) comprising a transparent electrode, superposed by a layer of a conductive transparent polymer (CTP), superposed by a layer of a light emitting polymer, oligomer, or low molecular weight compound superposed by a metal cathode, characterized in that the CTP layer has a sulfate ion content of less than 7,500 ppm, and a metal ion content of more than 0.04 mmoles/g.
    Type: Grant
    Filed: April 12, 2002
    Date of Patent: July 1, 2003
    Assignee: Koninklijke Philips Electronics N.V.
    Inventors: Michael Buechel, Boudewijn Johannes Catharinus Jacobs, Georg Greuel, Margaretha Maria De Kok Van Breemen, Peter Van De Weijer
  • Publication number: 20020179900
    Abstract: The invention pertains to an organic light emitting diode (LED) comprising a transparent electrode, superposed by a layer of a conductive transparent polymer (CTP), superposed by a layer of a light emitting polymer, oligomer, or low molecular weight compound superposed by a metal cathode, characterized in that the CTP layer has a sulfate ion content of less than 7,500 ppm, and a metal ion content of more than 0.04 mmoles/g.
    Type: Application
    Filed: April 12, 2002
    Publication date: December 5, 2002
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Michael Buechel, Boudewijn Johannes Catharinus Jacobs, Georg Greuel, Margaretha Maria De Kok Van Breemen, Peter Van De Weijer