Patents by Inventor Matthias Stoessel
Matthias Stoessel 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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Patent number: 7544383Abstract: A method is described for large-area application of at least two, for example, electroluminescent layers onto a substrate. In a process step A), spacer (5) is structured on the transparent substrate in such a way that, upon application of a second functional layer (11), contact between a first functional layer (10) already applied on the substrate and a part of a printing machine responsible for the transfer of the functional layers onto the substrate is avoided. In two other process steps B) and C), the first functional layer (10) and the second functional layer (15) are applied over a large area, for example, through large-area standard printing methods.Type: GrantFiled: October 11, 2002Date of Patent: June 9, 2009Assignee: Osram Opto Semiconductor GmbHInventors: Jan Birnstock, Joerg Blaessing, Karsten Heuser, Matthias Stoessel, Georg Wittmann
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Patent number: 7417371Abstract: The invention describes a passive-matrix powered display with structured pixels and a structured second electrode based on electroluminescent polymers with the following characteristics: functional polymer coatings, which contact a first electrode, are enclosed by windows of an insulating window coating, at least one additional insulating striped coating, which is located between the windows of the first insulating coating, is located across from the first electrode strips as a partition, a second electrode that contacts the functional coatings is structured through partitions and runs across toward the first electrode strips between the partitions.Type: GrantFiled: July 3, 2002Date of Patent: August 26, 2008Assignee: Osram Opto Semiconductors GmbHInventors: Jan Birnstock, Joerg Blaessing, Karsten Heuser, Matthias Stoessel, Georg Wittmann
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Patent number: 7375461Abstract: The invention relates to a passive matrix-driven display based on electroluminescent polymers having a structured matrix of pixels and a structured second electrode with electrode connectors, having the following features: the functional polymers are delimited by windows of an insulating layer and contact a first electrode structured in the shape of strips and a second electrode, running parallel to the first electrode and also strip-shaped, which is in contact with electrode connectors; additional windows are disposed in the insulating layer and are positioned over the electrode connectors for the second electrode, or areas of the insulating layer are disposed between the electrode connectors; an encapsulation is provided that covers the insulating layer with the functional polymers and the second electrode, but leaves one end of each electrode connector exposed.Type: GrantFiled: July 3, 2002Date of Patent: May 20, 2008Assignee: Osram Opto Semiconductors GmbHInventors: Jan Birnstock, Joerg Blaessing, Karsten Heuser, Matthias Stoessel, Georg Wittmann
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Patent number: 7256541Abstract: An organic layer (1) is applied to a transparent carrier (2) in such a way that different partial regions with different refractive indices are formed in the layer. Owing to deflection at the phase boundaries within the layer, fewer photons remain trapped in the layer as a result of wave-guiding losses than in the case of homogeneous layers.Type: GrantFiled: November 27, 2002Date of Patent: August 14, 2007Assignee: Osram Opto Semiconductors GmbHInventors: Jan Birnstock, Jörg Blässing, Karsten Heuser, Marcus Scheffel, Matthias Stössel, Georg Wittmann
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Patent number: 7219978Abstract: A substrate with banks having end channels is provided to advantageously allow excess fluid collecting on one part of the substrate to flow to another part of the substrate. An excess of fluid collecting in a particular area of the substrate may flow to an area of the substrate where it would not interfere with the manufacturing process. The end channels may be modified with wave breakers that act as buffers to redirect excess fluid and/or with capillary-force homogeneity enhancers that pull excess fluid away from other parts of the substrate. The end channels may also contain line-end reservoirs that provide additional room for excess fluid to collect.Type: GrantFiled: November 18, 2002Date of Patent: May 22, 2007Assignee: Osram Opto Semiconductors GmbHInventors: Tobias Frost, Matthias Stoessel
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Publication number: 20070085870Abstract: A system and method is presented for measuring the volume of an ink-jet droplet or the relative volumes of a plurality of ink-jet droplets using their electrical properties. In a preferred embodiment a single small capacitor or an array of capacitors is used to measure the dielectric properties of ink-jet droplets and the absolute drop volumes are derived. In an alternative preferred embodiment the relative differences in drop volumes are determined. A feedback circuit, such as one using lock-in technique, may be used to automatically adjust subsequent drop volumes.Type: ApplicationFiled: September 27, 2006Publication date: April 19, 2007Applicant: OSRAM OPTO SEMICONDUCTORS GMBHInventors: Matthias Stoessel, Karl Pichler
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Patent number: 7121642Abstract: A system and method is presented for measuring the volume of an ink-jet droplet or the relative volumes of a plurality of ink-jet droplets using their electrical properties. In a preferred embodiment a single small capacitor or an array of capacitors is used to measure the dielectric properties of ink-jet droplets and the absolute drop volumes are derived. In an alternative preferred embodiment the relative differences in drop volumes are determined. A feedback circuit, such as one using lock-in technique, may be used to automatically adjust subsequent drop volumes.Type: GrantFiled: August 7, 2002Date of Patent: October 17, 2006Assignee: Osram Opto Semiconductors GmbHInventors: Matthias Stoessel, Karl Pichler
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Patent number: 6956645Abstract: Apparatus and procedure for the in situ measurement of quantities of polymer printed onto supports A source of radiation 2 sends electromagnetic radiation onto a droplet 9, 10 of polymer solution or polymer dispersion, which is printed onto a support 4. A detector 3 measures the transmitted or re-emitted radiation. Controlled by a comparator device 6 and a control unit 5, the printing parameters are corrected in situ, if necessary. In this manner, a controlled adjustment of the layer thickness of organic light-emitting diodes and therefore luminosity and color perception can be achieved.Type: GrantFiled: December 20, 2002Date of Patent: October 18, 2005Assignee: Osram Opto Semiconductors GmbHInventors: Georg Wittman, Joerg Blaessing, Matthias Stoessel, Jan Birnstock, Karsten Heuser
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Patent number: 6939732Abstract: The present invention relates to an organic, colored, electroluminescent display having the following features: between two strip-shaped structured electrodes running transverse to each other, there is a functional layer of electroluminescent polymers that are delimited by the windows (10) of an insulating layer (5), the functional polymers define pixels of different colors R, G and B for a matrix, strip-shaped ridges of at least one additional insulating layer (15 and 20 in the case of two layers), which structure one of the electrodes, separate pixels of the same color from pixels of different colors, where pixels of the same color are located between two adjacent ridges.Type: GrantFiled: July 11, 2002Date of Patent: September 6, 2005Assignee: Osram Opto Semiconductors GmbHInventors: Jan Birnstock, Joerg Blaessing, Karsten Heuser, Matthias Stoessel, Georg Wittmann
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Publication number: 20040251822Abstract: An organic electroluminescent display is proposed in which the functional layers (20) are delimited by first strip-like partitions (10) so that large-area application of the functional layers becomes possible. The functional layers are on located on a first electrode layer (5A) on a substrate (1). A second electrode layer (25A) is located on the functional layers.Type: ApplicationFiled: April 26, 2004Publication date: December 16, 2004Inventors: Jan Birnstock, Joerg Blaessing, Karsten Heuser, Matthias Stoessel, Georg Wittmann
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Publication number: 20040247778Abstract: A method is described for large-area application of at least two, for example, electroluminescent layers onto a substrate. In a process step A), spacer (5) is structured on the transparent substrate in such a way that, upon application of a second functional layer (11), contact between a first functional layer (10) already applied on the substrate and a part of a printing machine responsible for the transfer of the functional layers onto the substrate is avoided. In two other process steps B) and C), the first functional layer (10) and the second functional layer (15) are applied over a large area, for example, through large-area standard printing methods.Type: ApplicationFiled: April 22, 2004Publication date: December 9, 2004Inventors: Jan Birnstock, Joerg Blaessing, Karsten Heuser, Matthias Stoessel, Georg Wittmann
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Publication number: 20040207316Abstract: The invention describes a passive-matrix powered display with structured pixels and a structured second electrode based on electroluminescent polymers with the following characteristics:Type: ApplicationFiled: January 9, 2004Publication date: October 21, 2004Inventors: Jan Birnstock, Joerg Blaessing, Karsten Heuser, Matthias Stoessel, Georg Wittmann
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Publication number: 20040202819Abstract: A substrate with banks having end channels is provided to advantageously allow excess fluid collecting on one part of the substrate to flow to another part of the substrate. An excess of fluid collecting in a particular area of the substrate may flow to an area of the substrate where it would not interfere with the manufacturing process. The end channels may be modified with wave breakers that act as buffers to redirect excess fluid and/or with capillary-force homogeneity enhancers that pull excess fluid away from other parts of the substrate. The end channels may also contain line-end reservoirs that provide additional room for excess fluid to collect.Type: ApplicationFiled: November 18, 2002Publication date: October 14, 2004Applicant: Osram Opto Semiconductors GmbH & Co. OHGInventors: Tobias Frost, Matthias Stoessel
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Publication number: 20040180457Abstract: The present invention relates to an organic, colored, electroluminescent display having the following features:Type: ApplicationFiled: January 9, 2004Publication date: September 16, 2004Inventors: Jan Birnstosk, Joerg Blaessing, Karsten Heuser, Matthias Stoessel, Georg Wittmann
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Publication number: 20040169464Abstract: The invention relates to a passive matrix-driven display based on electroluminescent polymers having a structured matrix of pixels and a structured second electrode with electrode connectors, having the following features:Type: ApplicationFiled: January 7, 2004Publication date: September 2, 2004Inventors: Jan Birnstock, Joerg Blaessing, Karsten Heuser, Matthias Stoessel, Georg Wittmann
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Patent number: 6734622Abstract: The organic electroluminescent component of the invention has a transparent bottom electrode situated on a substrate; a top electrode composed of a metal that is inert to oxygen and moisture; at least one organic function layer arranged between the bottom electrode and the top electrode; and a charge carrier injection layer containing a complex metal salt of the composition (Me1)(Me2) Fm+n, whereby the following applies: m and n are respectively a whole number corresponding to the valence of the metals Me1 and Me2 (the metal Me1 thereby has the valence m, the metal Me2 the valence n), Me1 is selected from a group consisting of Li, Na, K, Mg and Ca, Me2 is selected from a group consisting of Mg, Al, Ca, Zn, Ag, Sb, Ba, Sm and Yb, with the prescription: Me1≠Me2.Type: GrantFiled: January 2, 2002Date of Patent: May 11, 2004Assignee: Osram Opto Semiconductors GmbH & Co. oHGInventors: Andreas Kanitz, Matthias Stoessel
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Patent number: 6702419Abstract: Systems and methods are described for delivering droplets. One embodiment provides a system comprising nozzles adapted to deliver droplets to target points on the substrate, a first camera, and means for determining an angular rotation of the substrate in a coordinate system. In some embodiments the means for determining the angular rotation includes a second camera. The substrate has a top surface and alignment marks. The nozzles have droplet delivery openings oriented towards the substrate for delivery of the droplets. The first camera is oriented substantially towards the nozzle openings, and the second camera is oriented substantially towards the substrate top surface.Type: GrantFiled: May 3, 2002Date of Patent: March 9, 2004Assignee: Osram Opto Semiconductors GmbHInventors: Matthias Stoessel, Stephan Roeger, Dirk Buchhauser
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Publication number: 20040036856Abstract: Apparatus and procedure for the in situ measurement of quantities of polymer printed onto supportsType: ApplicationFiled: December 20, 2002Publication date: February 26, 2004Inventors: Georg Wittman, Joerg Blaessing, Matthias Stoessel, Jan Birnstock, Karsten Heuser
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Publication number: 20040027405Abstract: A system and method is presented for measuring the volume of an ink-jet droplet or the relative volumes of a plurality of ink-jet droplets using their electrical properties. In a preferred embodiment a single small capacitor or an array of capacitors is used to measure the dielectric properties of ink-jet droplets and the absolute drop volumes are derived. In an alternative preferred embodiment the relative differences in drop volumes are determined. A feedback circuit, such as one using lock-in technique, may be used to automatically adjust subsequent drop volumes.Type: ApplicationFiled: August 7, 2002Publication date: February 12, 2004Applicant: Osram Opto Semiconductors GmbH & Co. OHG.Inventors: Matthias Stoessel, Karl Pichler
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Publication number: 20040009304Abstract: A system and method is presented for deposing a liquid on a substrate. The print head of an ink-jet printer emits a liquid containing ink and at least one other component. An energy beam, such as a laser, with sufficient intensity substantially causes at least a partial modification, such as evaporation, of a component of the liquid, thereby altering the drying profile. The ink deposed on the substrate may be used to create devices such as organic transistors and OLEDs.Type: ApplicationFiled: July 9, 2002Publication date: January 15, 2004Applicant: Osram Opto Semiconductors GmbH & Co. OGHInventors: Karl Pichler, Matthias Stoessel