Patents Assigned to OLEDWORKS GMBH
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Publication number: 20200373503Abstract: The present invention relates to heteroleptic complexes comprising a phenylimidazole or phenyltriazole unit bonded via a carbene bond to a central metal atom, and phenylimidazole ligands attached via a nitrogen-metal bond to the central atom, to OLEDs which comprise such heteroleptic complexes, to light-emitting layers comprising at least one such heteroleptic complex, to a device selected from the group consisting of illuminating elements, stationary visual display units and mobile visual display units comprising such an OLED, to the use of such a heteroleptic complex in OLEDs, for example as emitter, matrix material, charge transport material and/or charge blocker.Type: ApplicationFiled: March 6, 2019Publication date: November 26, 2020Applicants: BASF SE, OLEDWORKS GMBH, OSRAM OLEO GMBHInventors: Evelyn FUCHS, Oliver MOLT, Korinna DORMANN, Thomas GESSNER, Nicolle LANGER, lngo MUENSTER, JianQiang Qu, Christian LENNARTZ, Christian SCHILDKNECHT, Soichi WATANABE, Gerhard WAGENBLAST, Guenter SCHMID, Herbert Friedrich BOERNER, Volker van ELSBERGEN
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Patent number: 10305067Abstract: The invention relates to a substrate (2) for manufacturing an organic conversion device for converting electrical energy into light energy or light energy into electrical energy, wherein the substrate comprises a) an encapsulation layer (3) on the substrate, wherein the encapsulation layer includes a first inorganic layer (7), a second inorganic layer (9) and an intermediate organic layer (8), and b) a getter reservoir (6) in contact with the organic layer of the encapsulation layer. Water molecules will therefore not only be transported along the intermediate organic layer, but will also be gathered, especially absorbed, by the getter reservoir, if the encapsulation is damaged. This can slow down a transport of water molecules along a leakage path towards an organic conversion layer of the organic conversion device and hence slow down a possible degradation of the performance of the organic conversion device, if the encapsulation layer is damaged.Type: GrantFiled: August 4, 2015Date of Patent: May 28, 2019Assignee: OLEDWorks GmbHInventors: Stefan Peter Grabowski, Herbert Lifka, Peter Van De Weijer, Rainald Manfred Gierth, Jens Meyer, Manfred Stephan Ruske, Helga Hummel
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Patent number: 10288268Abstract: The invention relates to an illuminant (23) and a socket (20) for a lamp (15). The features of the socket (20) can be implemented also independently of the features of the illuminant (23). The illuminant (23) has a preferably planar illumination surface (24). One or more semiconductor lighting elements are arranged within an illuminant housing (30). The illuminant connection device (70) required for mechanical and electrical connection to the socket (20) is provided on the rear face (66) of the illuminant (23), said rear face (66) lying opposite the illumination surface (24). The dimensions of the illuminant are preferably greater than the dimensions of the socket (10) such that the illuminant (23) fully covers the socket when looking onto the illumination surface (24), resulting in a particularly appealing look. Said socket and illuminant (23) modularly achieve large total illumination surfaces in a lamp (15) and an appealing overall appearance in a very simple manner.Type: GrantFiled: October 18, 2011Date of Patent: May 14, 2019Assignees: Panasonic Corporation, OSRAM OLED GmbH, OLEDWorks GmbHInventors: Ulrich Spintge, Karsten Diekmann, Britta Goeoetz, Steven Rossbach, Tom Munters, Vincent Johannes Jacobus Van Montfort
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Patent number: 10165649Abstract: An LED device comprises a substrate and a stack of layers defining an LED component and including an electroluminescent layer. A capacitive structure is formed on top of the stack of layers. The area of the defined capacitor encodes information concerning the electrical characteristics of the LED component.Type: GrantFiled: March 30, 2016Date of Patent: December 25, 2018Assignee: OLEDWORKS GMBHInventor: Dirk Hente
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Patent number: 9942962Abstract: An electronic device is provided in which a dedicated area of the device substrate is patterned to form a resistive track so that it can be contacted by a readout arrangement. The resistive track is used to encode information. The information is provided to a driver which can then derive information about the type of device being driven. The driver can thus be controlled accordingly.Type: GrantFiled: March 10, 2015Date of Patent: April 10, 2018Assignee: OLEDWORKS GMBHInventor: Christoph Rickers
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Patent number: 9923163Abstract: The invention relates to an organic light emitting diode device having an electrode sheet of a light emitting area and an electrode contact in contact with the electrode sheet, to a method for forming such OLED device and to method of operating such OLED device. In order to provide such OLED device having a reduced tendency for the occurrence of hot spots, the present invention provides for reducing a local and/or average regional current density of a current flowing in operation of the lighting device through an interface between the electrode sheet and the electrode contact in a corner area of the interface.Type: GrantFiled: November 19, 2014Date of Patent: March 20, 2018Assignee: OLEDWorks GmbHInventors: Florent Monestier, Christian Büttner
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Patent number: 9882159Abstract: The invention relates to a voltage-light conversion device (1) like an OLED comprising a structured electrically conducting layer (3) on a substrate (2) and a further layer (60) that is part of an encapsulation and which comprises a layer edge (63). The electrically conducting layer comprises in an edge region (70) close to the layer edge a structure edge (10), wherein at least a part of the structure edge is not perpendicular to the layer edge. Since in the edge region at least a part of the structure edge is not perpendicular to the layer edge, during the production process for producing the further layer a possible flow of initially liquid layer material along the structure edge can be directed such that the liquid material remains relatively close to the desired layer edge, i.e. the liquid material can be better locally confined.Type: GrantFiled: September 25, 2014Date of Patent: January 30, 2018Assignee: OLEDWORKS GMBHInventors: Soren Hartmann, Meik Rekittke, Pieter Gijsbertus Maria Kruijt
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Patent number: 9874314Abstract: A socket is provided (100, 400) for electrically connecting an OLED blade (300), the socket (100, 400) comprising a first part (110, 410) and a second part (120, 420) with a slot (170, 470) between the first part (110, 410) and the second part (120, 420) for receiving the OLED blade (300), at least parts of the first part (110, 410) or the second part (120, 420) being transparent such that primary light emitted by the OLED blade (300) when inserted in the slot can pass the first part (110, 410) or the second part (120, 420), the socket (100, 400) further comprising first electrical contacts (150) for electrically contacting the OLED blade (300) and a first mechanical fixture (140) to attach the OLED blade (300) in a removable way between the first part (110, 410) and the second part (120, 420), the socket (100, 400) further comprising an electrical connector (130, 430) for supplying electrical power to the first electrical contacts (150).Type: GrantFiled: March 20, 2014Date of Patent: January 23, 2018Assignee: OLEDWORKS GMBHInventors: Ming Zhang, Bo Pan, Lei Sui, Zhong Huang, Gang Wang
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Patent number: 9831467Abstract: The present invention relates to an encapsulated semiconductor device (20) provided on a flexible substrate (1), a method of providing an at least partially encapsulated semiconductor device (20) on a flexible substrate (1) and a software product for providing an at least partially encapsulated semiconductor device (20) on a flexible substrate (1). In a preferred embodiment, an encapsulation method is presented in which the organic layer (3) of an inorganic/organic/inorganic multilayer barrier (5) on a plastic foil (1) as a substrate is removed at the edges of an OLED (13). The edges are subsequently sealed with a standard TFE process to encapsulate the OLED (13). This enables cuttable OLEDs (20) that are cut out of a larger plastic substrate (1) and gives a method to reduce side leakage in OLEDs (20) that have been manufactured in a roll-to-toll process.Type: GrantFiled: January 13, 2015Date of Patent: November 28, 2017Assignee: OLEDWORKS GMBHInventors: Jens Meyer, Rainald Manfred Gierth, Stefan Peter Grabowski, Herbert Lifka, Peter Van De Weijer, Petrus Cornelis-Paulus Bouten, Volker Lambert Van Elsbergen, Manfred Stephan Ruske, Soren Hartmann
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Patent number: 9807834Abstract: A device and associated PCB structure are provided in which a dedicated area of the device substrate is patterned, so that it can be contacted by a readout arrangement of the PCB. The pattern comprises an arrangement of contact regions. Interconnections and open circuits are used to encode information. A dotted contact area of the PCB is used to probe the pattern, and relay this to a driver which can then derive information about the type of device being driven. The driver can thus be controlled accordingly.Type: GrantFiled: December 19, 2014Date of Patent: October 31, 2017Assignee: OLEDWORKS GMBHInventor: Christoph Rickers
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Publication number: 20170279082Abstract: The invention relates to a substrate (2) for manufacturing an organic conversion device for converting electrical energy into light energy or light energy into electrical energy, wherein the substrate comprises a) an encapsulation layer (3) on the substrate, wherein the encapsulation layer includes a first inorganic layer (7), a second inorganic layer (9) and an intermediate organic layer (8), and b) a getter reservoir (6) in contact with the organic layer of the encapsulation layer. Water molecules will therefore not only be transported along the intermediate organic layer, but will also be gathered, especially absorbed, by the getter reservoir, if the encapsulation is damaged. This can slow down a transport of water molecules along a leakage path towards an organic conversion layer of the organic conversion device and hence slow down a possible degradation of the performance of the organic conversion device, if the encapsulation layer is damaged.Type: ApplicationFiled: August 4, 2015Publication date: September 28, 2017Applicant: OLEDWorks GmbHInventors: Stefan Peter Grabowski, Herbert Lifka, Peter Van De Weijer, Rainald Manfred Gierth, Jens Meyer, Manfred Stephan Ruske, Helga Hummel
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Patent number: 9750109Abstract: An electrical circuit is described for detection of an electrical hazard condition of a load 20, in particular of an OLED lighting element comprising driving terminals A, C. An electrical hazard condition, such as an overvoltage or short circuit is to be detected between terminals 22a, 22b of the circuit. A disabling element 24 is connected to one of the terminals 22a, 22b to disable the load. A monitoring circuit is connected to monitor a voltage V or current magnitude at at least one of the terminals 22a, 22b. The monitoring circuit comprises a maximum or minimum value detector 26 to deliver a maximum or minimum value Vmax of the voltage or current magnitude over time. The monitoring circuit is disposed to monitor the maximum or minimum value Vmax to detect the electrical hazard condition. A monitoring circuit is connected to activate the disabling element 24 if an electrical hazard condition is detected.Type: GrantFiled: February 25, 2014Date of Patent: August 29, 2017Assignee: OLEDWORKS GMBHInventors: Christian Kalkschmidt, Jan-Rene Luetz
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Patent number: 9748511Abstract: The invention relates to a light-emitting device like an OLED comprising a light emission region between an anode (5) and a cathode (6). An alternating arrangement (9) of anode pads (11) for electrically connecting the anode and cathode pads (10) for electrically connecting the cathode and an encapsulation (8) are configured such that the anode and cathode pads are electrically connectable by straight anode and cathode electrical connectors (3, 4) through openings (12) of the encapsulation. The alternating arrangement of the anode and cathode pads can lead to a more homogenous electrical field between the anode and the cathode and therefore allows for an improved degree of homogeneity of light emission. More, since the alternating arrangement of the anode and cathode pads is connectable by corresponding straight connectors, the contacting of the pads can be performed technically relatively easily.Type: GrantFiled: May 22, 2014Date of Patent: August 29, 2017Assignee: OLEDWORKS GMBHInventor: Christoph Rickers
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Patent number: 9723685Abstract: A short detection circuit is provided for detecting a short circuit condition of an LED. A voltage threshold is set which is dependent on the LED operating current, such that there are at least two different voltage thresholds at two different LED operating currents. This means false detections can be reduced and the LED current operating range can be increased over which the short detection functions.Type: GrantFiled: August 13, 2014Date of Patent: August 1, 2017Assignee: OLEDWORKS GMBHInventors: Christian Kalkschmidt, Etienne Nicolaas Kathalijntje Paulus Marie Eberson, Alexander Rudolf Albrecht Isphording, Harold Josef Gunther Radermacher
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Patent number: 9601719Abstract: The invention relates to a light source (1) comprising a light generating unit (2) like an organic light emitting diode and an outcoupling device (3) for coupling light out of the light generating unit in an outcoupling direction (4). The outcoupling device comprises a first region (5) for facing the light generating unit, a second region (7) having a refractive index being smaller than the refractive index of the first region, and a structured intermediate region (6) between the first region and the second region. The first region is optically homogenous and has a thickness in the outcoupling direction being larger than a coherence length of the light, thereby reducing generally possible wavelength dependent interference effects and, thus, a corresponding degradation of the outcoupling efficiency. The outcoupling efficiency can therefore be increased.Type: GrantFiled: August 29, 2012Date of Patent: March 21, 2017Assignee: OLEDWORKS GMBHInventors: Georg Friedrich Gaertner, Horst Greiner, Hans-Peter Loebl, Gerardus Henricus Rietjens
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Publication number: 20170019974Abstract: An electronic device is provided in which a dedicated area of the device substrate is patterned to form a resistive track so that it can be contacted by a readout arrangement. The resistive track is used to encode information. The information is provided to a driver which can then derive information about the type of device being driven. The driver can thus be controlled accordingly.Type: ApplicationFiled: March 10, 2015Publication date: January 19, 2017Applicant: OLEDWORKS GMBHInventor: Christophß Rickers
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Publication number: 20160374174Abstract: The present invention relates to an MID device (51) comprising an OLED (52) and a short detection circuit (53) for detection a short in the OLED (52). The short detection circuit (53) comprise a temperature sensing unit (55) tar sensing a first and a second temperature of the OLED (52) and a short detection unit (56) kw detecting the short based on a difference between the first and the second temperature. Therewith, the short detection can be less sensitive with respect to production tolerances resp. OLED binning.Type: ApplicationFiled: January 28, 2015Publication date: December 22, 2016Applicant: OLEDWORKS GMBHInventor: Dirk HENTE
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Publication number: 20160343988Abstract: The present invention relates to an encapsulated semiconductor device (20) provided on a flexible substrate (1), a method of providing an at least partially encapsulated semiconductor device (20) on a flexible substrate (1) and a software product for providing an at least partially encapsulated semiconductor device (20) on a flexible substrate (1). In a preferred embodiment, an encapsulation method is presented in which the organic layer (3) of an inorganic/organic/inorganic multilayer barrier (5) on a plastic foil (1) as a substrate is removed at the edges of an OLED (13). The edges are subsequently sealed with a standard TFE process to encapsulate the OLED (13). This enables cuttable OLEDs (20) that are cut out of a larger plastic substrate (1) and gives a method to reduce side leakage in OLEDs (20) that have been manufactured in a roll-to-toll process.Type: ApplicationFiled: January 13, 2015Publication date: November 24, 2016Applicant: OLEDWORKS GMBHInventors: Jens Meyer, Rainald Manfred Gierth, Stefan Peter Grabowski, Herbert Lifka, Peter Van De Weijer, Petrus Cornelis-Paulus Bouten, Volker Lambert Van Elsbergen, Manfred Stephan Ruske, Soren Hartmann
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Publication number: 20160338162Abstract: A device and associated PCB structure are provided in which a dedicated area of the device substrate is patterned, so that it can be contacted by a readout arrangement of the PCB. The pattern comprises an arrangement of contact regions. Interconnections and open circuits are used to encode information. A dotted contact area of the PCB is used to probe the pattern, and relay this to a driver which can then derive information about the type of device being driven. The driver can thus be controlled accordingly.Type: ApplicationFiled: January 6, 2014Publication date: November 17, 2016Applicant: OLEDWORKS GMBHInventor: Christoph Rickers
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Patent number: 9485831Abstract: The invention relates to supervision circuits (10) for supervising organic light emitting diode devices (1) via detection circuits (20) for detecting failure states of the organic light emitting diode devices (1) and for generating decision signals in response to detected failure states of the organic light emitting diode devices (1), which detected failure states have durations equal to or larger than time intervals. In response to the decision signals, the organic light emitting diode devices (1) can be bypassed and deactivated through switching circuits (30) such as bi-stable circuits. The failure states may include that the organic light emitting diode devices (1) have a relatively low impedance or “short” and a relatively high impedance or “open”. The supervision circuit (10) further prevents the organic light emitting diode devices (1) from being bypassed unjustly.Type: GrantFiled: February 17, 2015Date of Patent: November 1, 2016Assignee: OLEDWORKS GMBHInventor: Dirk Hente