Patents by Inventor Sergey A. Lamansky
Sergey A. Lamansky 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: 8547015Abstract: Optical films for enhancing light extraction from self-emissive light sources such as bottom-emitting or top-emitting OLEDs are disclosed. The extraction films typically include a flexible carrier film, and a first and second layer carried by the carrier film. The first or second layer has a nanovoided morphology and includes a polymer binder, and may also have a refractive index less than 1.35 or 1.3. An embedded structured surface of light extraction elements is formed between the first and second layers. The light extraction elements may be primarily diffractive elements adapted to be disposed within an evanescent zone of the OLED, or they may be primarily refractive elements adapted to be disposed outside the evanescent zone. The extraction film may also include a third layer, and a second embedded structured surface may be formed between the third layer and the first layer.Type: GrantFiled: October 20, 2010Date of Patent: October 1, 2013Assignee: 3M Innovative Properties CompanyInventors: Martin B. Wolk, Sergey Lamansky, William Blake Kolb, Encai Hao, Jun-Ying Zhang, David S. Thompson, Vivan W. Jones, Kevin R. Schaffer, Audrey A. Sherman, Zhaohui Yang, Leslie A. Todero
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Patent number: 8538224Abstract: A light extraction film having internal nanostructures and external microstructures for organic light emitting diode (OLED) devices. The light extraction film includes a flexible substantially transparent film, a low index nanostructured layer applied to the film, and a high index planarizing backfill layer applied over the nanostructured layer. External optical microstructures are applied to the flexible substantially transparent film on a side opposite the nanostructured layer to enhance light extraction from the OLED devices while providing for a more uniform luminance distribution.Type: GrantFiled: April 22, 2010Date of Patent: September 17, 2013Assignee: 3M Innovative Properties CompanyInventors: Sergey A. Lamansky, Terry L. Smith, Jun-Ying Zhang, Leslie A. Todero, Encai Hao, Ha T. Le, Ding Wang, Fei Lu, Shoichi Masuda
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Patent number: 8469551Abstract: Optical films for enhancing light extraction from self-emissive pixelated OLEDs, without introducing significant pixel blur, are disclosed. The extraction films include a flexible carrier film, and a first and second layer carried by the carrier film. The first layer has a nanovoided morphology, includes a polymer binder, and may have a refractive index less than 1.35 or 1.3. An embedded structured surface of light extraction elements is formed between the first and second layers. The extraction film includes a major coupling surface for attachment to an outer surface of the light source. The film is configured such that a land portion between the structured surface and the major coupling surface is thinner than a specified amount, e.g., less than 50, 25, or 10 microns, or less than a thickness of the carrier film.Type: GrantFiled: October 20, 2010Date of Patent: June 25, 2013Assignee: 3M Innovative Properties CompanyInventors: Martin B. Wolk, Sergey Lamansky, David S. Thompson, Zhaohui Yang, Jun-Ying Zhang, Encai Hao, William Blake Kolb, Audrey A. Sherman, Kevin R. Schaffer
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Patent number: 8427747Abstract: A light extraction film laminated to a glass substrate for organic light emitting diode (OLED) devices. The light extraction film includes a flexible substantially transparent film, a low index nanostructured layer applied to the film, and a high index planarizing backfill layer applied over the nanostructured layer. A glass substrate is laminated to the flexible substantially transparent film on a side opposite the nanostructured layer and including an ultra-low index region between the film and the glass substrate. The ultra-low index region is used to reduce optical losses occurring with the glass substrate.Type: GrantFiled: April 22, 2010Date of Patent: April 23, 2013Assignee: 3M Innovative Properties CompanyInventors: Ha T. Le, Jun-Ying Zhang, Sergey A. Lamansky, Scott M. Tapio, Encai Hao, David B. Stegall, Serena L. Mollenhauer
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Publication number: 20130051032Abstract: A light extraction film having multi-periodic zones of engineered nanostructures. The light extraction film includes a flexible substrate, a layer of low index engineered nanostructures applied to the substrate, and a high index backfill layer applied over the nanostructures. The multi-periodic zones include a repeating zone of the nanostructures having multi-periodic characteristics. The repeating zone includes first and second sets of nanostructures having different periodic pitches. The multi-periodic zones can be used to enhance the light output and tune the angular luminosity of organic light emitting diode devices.Type: ApplicationFiled: August 26, 2011Publication date: February 28, 2013Inventors: Vivian W. Jones, Sergey A. Lamansky, James M. Nelson, Ha T. Le
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Publication number: 20120234460Abstract: A light extraction film having nanoparticles with engineered periodic structures. The light extraction film includes a substantially transparent substrate, low index one-dimensional or two-dimensional periodic structures on the substrate, and a high index planarizing backfill layer applied over the periodic structures. Light scattering nanoparticles are either applied in a layer over the periodic structures or included in the backfill layer.Type: ApplicationFiled: March 17, 2011Publication date: September 20, 2012Inventors: Jun-Ying Zhang, Encai Hao, Vivian W. Jones, Terry L. Smith, Sergey A. Lamansky, Ha T. Le, Dawn Qiu, William B. Kolb, James M. Battiato, David B. Stegall
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Patent number: 8249409Abstract: A multifunctional optical film for enhancing light extraction includes a flexible substrate, a structured layer having nanoparticles of different sizes, and a backfill layer. The structured layer effectively uses microreplicated diffractive or scattering nanostructures located near enough to the light generation region to enable extraction of an evanescent wave from an organic light emitting diode (OLED) device. The backfill layer has a material having an index of refraction different from the index of refraction of the structured layer. The backfill layer also provides a planarizing layer over the structured layer in order to conform the light extraction film to a layer of an OLED display device. The film may have additional layers added to or incorporated within it to an emissive surface in order to effect additional functionalities beyond improvement of light extraction efficiency.Type: GrantFiled: April 28, 2011Date of Patent: August 21, 2012Assignee: 3M Innovative Properties CompanyInventors: Jun-Ying Zhang, Jimmie R. Baran, Jr., Terry L. Smith, William J. Schultz, William Blake Kolb, Cheryl A. Patnaude, Sergey A. Lamansky, Brian K. Nelson, Naiyong Jing, Brant U. Kolb
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Publication number: 20110285280Abstract: Organic light emitting devices are described wherein the emissive layer comprises a host material containing an emissive molecule, which molecule is adapted to luminesce when a voltage is applied across the heterostructure, and the emissive molecule is selected from the group of phosphorescent organometallic complexes, including cyclometallated platinum, iridium and osmium complexes. The organic light emitting devices optionally contain an exciton blocking layer. Furthermore, improved electroluminescent efficiency in organic light emitting devices is obtained with an emitter layer comprising organometallic complexes of transition metals of formula L2MX, wherein L and X are distinct bidentate ligands. Compounds of this formula can be synthesized more facilely than in previous approaches and synthetic options allow insertion of fluorescent molecules into a phosphorescent complex, ligands to fine tune the color of emission, and ligands to trap carriers.Type: ApplicationFiled: August 8, 2011Publication date: November 24, 2011Inventors: Mark E. THOMPSON, Peter Djurovich, Sergey Lamansky, Drew Murphy, Raymond Kwong, Feras Abdel-Razzaq, Stephen R. Forrest, Mare A. Baldo, Paul E. Burrows
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Patent number: 8049416Abstract: Electroluminescent devices, and methods of making and using such devices, are disclosed. The electroluminescent devices include a patterned layer on a solvent-susceptible layer. The electroluminescent devices may be used, for example, as full color display devices.Type: GrantFiled: August 28, 2007Date of Patent: November 1, 2011Assignee: Samsung Mobile Display Co., Ltd.Inventors: Martin B. Wolk, Leslie A. Kreilich, Sergey A. Lamansky, John P. Baetzold
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Publication number: 20110261461Abstract: A light extraction film laminated to a glass substrate for organic light emitting diode (OLED) devices. The light extraction film includes a flexible substantially transparent film, a low index nanostructured layer applied to the film, and a high index planarizing backfill layer applied over the nanostructured layer. A glass substrate is laminated to the flexible substantially transparent film on a side opposite the nanostructured layer and including an ultra-low index region between the film and the glass substrate. The ultra-low index region is used to reduce optical losses occurring with the glass substrate.Type: ApplicationFiled: April 22, 2010Publication date: October 27, 2011Inventors: Ha T. Le, Jun-Ying Zhang, Sergey A. Lamansky, Scott M. Tapio, Encai Hao, David B. Stegall, Serena L. Mollenhauer
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Publication number: 20110262093Abstract: A light extraction film having internal nanostructures and external microstructures for organic light emitting diode (OLED) devices. The light extraction film includes a flexible substantially transparent film, a low index nanostructured layer applied to the film, and a high index planarizing backfill layer applied over the nanostructured layer. External optical microstructures are applied to the flexible substantially transparent film on a side opposite the nanostructured layer to enhance light extraction from the OLED devices while providing for a more uniform luminance distribution.Type: ApplicationFiled: April 22, 2010Publication date: October 27, 2011Inventors: Sergey A. Lamansky, Terry L. Smith, Jun-Ying Zhang, Leslie A. Todero, Encai Hao, Ha T. Le, Ding Wang, Fei Lu, Shoichi Masuda
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Publication number: 20110200293Abstract: A multifunctional optical film for enhancing light extraction includes a flexible substrate, a structured layer having nanoparticles of different sizes, and a backfill layer. The structured layer effectively uses microreplicated diffractive or scattering nanostructures located near enough to the light generation region to enable extraction of an evanescent wave from an organic light emitting diode (OLED) device. The backfill layer has a material having an index of refraction different from the index of refraction of the structured layer. The backfill layer also provides a planarizing layer over the structured layer in order to conform the light extraction film to a layer of an OLED display device. The film may have additional layers added to or incorporated within it to an emissive surface in order to effect additional functionalities beyond improvement of light extraction efficiency.Type: ApplicationFiled: April 28, 2011Publication date: August 18, 2011Inventors: Jun-Ying Zhang, Jimmie R. Baran, JR., Terry L. Smith, William J. Schultz, William Blake Kolb, Cheryl A. Patnaude, Sergey A. Lamansky, Brian K. Nelson, Naiyong Jing, Brant U. Kolb
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Patent number: 7957621Abstract: A multifunctional optical film for enhancing light extraction includes a flexible substrate, a structured layer having nanoparticles of different sizes, and a backfill layer. The structured layer effectively uses microreplicated diffractive or scattering nanostructures located near enough to the light generation region to enable extraction of an evanescent wave from an organic light emitting diode (OLED) device. The backfill layer has a material having an index of refraction different from the index of refraction of the structured layer. The backfill layer also provides a planarizing layer over the structured layer in order to conform the light extraction film to a layer of an OLED display device. The film may have additional layers added to or incorporated within it to an emissive surface in order to effect additional functionalities beyond improvement of light extraction efficiency.Type: GrantFiled: December 17, 2008Date of Patent: June 7, 2011Assignee: 3M Innovative Properties CompanyInventors: Jun-Ying Zhang, Jimmie R. Baran, Jr., Terry L. Smith, William J. Schultz, William Blake Kolb, Cheryl A. Patnaude, Sergey A. Lamansky, Brian K. Nelson, Naiyong Jing, Brant U. Kolb
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Publication number: 20110112296Abstract: Organic light emitting devices are described wherein the emissive layer comprises a host material containing an emissive molecule, which molecule is adapted to luminesce when a voltage is applied across the heterostructure, and the emissive molecule is selected from the group of phosphorescent organometallic complexes, including cyclometallated platinum, iridium and osmium complexes. The organic light emitting devices optionally contain an exciton blocking layer. Furthermore, improved electroluminescent efficiency in organic light emitting devices is obtained with an emitter layer comprising organometallic complexes of transition metals of formula L2MX, wherein L and X are distinct bidentate ligands. Compounds of this formula can be synthesized more facilely than in previous approaches and synthetic options allow insertion of fluorescent molecules into a phosphorescent complex, ligands to fine tune the color of emission, and ligands to trap carriers.Type: ApplicationFiled: January 19, 2011Publication date: May 12, 2011Inventors: Mark E. THOMPSON, Peter Djurovic H, Sergey Lamansky, Drew Murphy, Raymond Kwong, Feras Abdel-Razzaq, Stephen R. Forrest, Marc A. Baldo, Paul E. Burrows
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Publication number: 20110036391Abstract: A conducting film or device multilayer electrode includes a substrate and two transparent or semitransparent conductive layers separated by a transparent or semitransparent intervening layer. The intervening layer includes electrically conductive pathways between the first and second conductive layers to help reduce interfacial reflections occurring between particular layers in devices incorporating the conducting film or electrode.Type: ApplicationFiled: August 13, 2009Publication date: February 17, 2011Inventors: Fred B. McCormick, Sergey A. Lamansky, Leslie A. Kreilich, Manoj Nirmal
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Patent number: 7883787Abstract: Organic light emitting devices are described wherein the emissive layer comprises a host material containing an emissive molecule, which molecule is adapted to luminesce when a voltage is applied across the heterostructure, and the emissive molecule is selected from the group of phosphorescent organometallic complexes, including cyclometallated platinum, iridium and osmium complexes. The organic light emitting devices optionally contain an exciton blocking layer. Furthermore, improved electroluminescent efficiency in organic light emitting devices is obtained with an emitter layer comprising organometallic complexes of transition metals of formula L2MX, wherein L and X are distinct bidentate ligands. Compounds of this formula can be synthesized more facilely than in previous approaches and synthetic options allow insertion of fluorescent molecules into a phosphorescent complex, ligands to fine tune the color of emission, and ligands to trap carriers.Type: GrantFiled: May 1, 2009Date of Patent: February 8, 2011Assignees: The Trustees of Princeton University, The University of Southern CaliforniaInventors: Mark E. Thompson, Peter Djurovich, Sergey Lamansky, Drew Murphy, Raymond Kwong, Feras Abdel-Razzaq, Stephen R. Forrest, Marc A. Baldo, Paul E. Burrows
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Publication number: 20100150513Abstract: A multifunctional optical film for enhancing light extraction includes a flexible substrate, a structured layer having nanoparticles of different sizes, and a backfill layer. The structured layer effectively uses microreplicated diffractive or scattering nanostructures located near enough to the light generation region to enable extraction of an evanescent wave from an organic light emitting diode (OLED) device. The backfill layer has a material having an index of refraction different from the index of refraction of the structured layer. The backfill layer also provides a planarizing layer over the structured layer in order to conform the light extraction film to a layer of an OLED display device. The film may have additional layers added to or incorporated within it to an emissive surface in order to effect additional functionalities beyond improvement of light extraction efficiency.Type: ApplicationFiled: December 17, 2008Publication date: June 17, 2010Inventors: Jun-Ying Zhang, Jimmie R. Baran, JR., Terry L. Smith, William J. Schultz, William Blake Kolb, Cheryl A. Patnaude, Sergey Lamansky, Brian K. Nelson, Naiyong Jing, Brant U. Kolb
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Publication number: 20100110551Abstract: A multifunctional optical film for enhancing light extraction includes a flexible substrate, a structured layer, a high index backfill layer, and an optional passivation layer. The structured layer effectively uses microreplicated diffractive or scattering nanostructures located near enough to the light generation region to enable extraction of an evanescent wave from an organic light emitting diode (OLED) device. The backfill layer has a material having an index of refraction different from the index of refraction of the structured layer. The backfill layer also provides a planarizing layer over the structured layer in order to conform the light extraction film to a layer of an OLED display device. The film may have additional layers added to or incorporated within it to an emissive surface in order to effect additional functionalities beyond improvement of light extraction efficiency.Type: ApplicationFiled: October 31, 2008Publication date: May 6, 2010Inventors: Sergey A. Lamansky, Encai Hao, Ha T. Le, David B. Stegall, Ding Wang, Yi Lu, Terry L. Smith, Jun-Ying Zhang, Jung-Sheng Wu, James E. Thorson
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Patent number: 7670450Abstract: A thermal transfer donor element is provided which can include a support, light-to-heat conversion layer, interlayer, and transfer layer. When the donor element is brought into contact with a receptor and imagewise irradiated, an image is obtained which is free from contamination by the light-to-heat conversion layer. In order to enhance the lifetimes of the transferred material, thermal treatments such as annealing are applied to the receptor before transfer, to the transfer layer after transfer, or a combination of them. The construction and process of the donor element is useful in making colored images including applications such as color proofs, color filter elements, and organic light emitting diode displays and devices.Type: GrantFiled: July 31, 2006Date of Patent: March 2, 2010Assignee: 3M Innovative Properties CompanyInventors: Sergey A. Lamansky, Erika Bellmann, Ha T. Le, John S. Staral, John P. Baetzold
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Publication number: 20090209760Abstract: Organic light emitting devices are described wherein the emissive layer comprises a host material containing an emissive molecule, which molecule is adapted to luminesce when a voltage is applied across the heterostructure, and the emissive molecule is selected from the group of phosphorescent organometallic complexes, including cyclometallated platinum, iridium and osmium complexes. The organic light emitting devices optionally contain an exciton blocking layer. Furthermore, improved electroluminescent efficiency in organic light emitting devices is obtained with an emitter layer comprising organometallic complexes of transition metals of formula L2MX, wherein L and X are distinct bidentate ligands. Compounds of this formula can be synthesized more facilely than in previous approaches and synthetic options allow insertion of fluorescent molecules into a phosphorescent complex, ligands to fine tune the color of emission, and ligands to trap carriers.Type: ApplicationFiled: May 1, 2009Publication date: August 20, 2009Inventors: Mark E. Thompson, Peter Djurovich, Sergey Lamansky, Drew Murphy, Raymond Kwong, Feras Abdel-Razzaq, Stephen R. Forrest, Mare A. Baldo, Paul E. Burrows