Electroluminescent Lamp Patents (Class 427/66)
  • Patent number: 8927053
    Abstract: Disclosed is an electronic device comprising a glass, glass ceramic, or ceramic sheet having a thickness less than about 0.4 mm and wherein a minimum strength of the inorganic substrate is greater than about 500 MPa. Also disclosed is a method of making an electronic device including drawing a viscous inorganic material to form an inorganic ribbon having opposing as-formed edges along a length of the ribbon, separating the ribbon to form a substrate sheet of inorganic material comprising two as-formed edges and forming a device element on the inorganic substrate.
    Type: Grant
    Filed: August 9, 2011
    Date of Patent: January 6, 2015
    Assignee: Corning Incorporated
    Inventors: Sean Matthew Garner, Gregory Scott Glaesemann, Mark Lawrence Powley
  • Publication number: 20140357012
    Abstract: A method for manufacturing an optical substrate includes: a step for preparing a long film-shaped mold; a step for preparing a sol; a step for forming a coating film of the sol on a substrate; a step for drying the coating film; a step for pressing a pattern surface of the film-shaped mold against the dried coating film with a pressing roll while feeding the film-shaped mold to the pressing roll; a step for releasing the film-shaped mold from the coating film; and a step for baking the coating film to which the concave and convex pattern has been transferred.
    Type: Application
    Filed: August 20, 2014
    Publication date: December 4, 2014
    Inventors: Shigetaka TORIYAMA, Suzushi NISHIMURA, Naoto KOZASA, Yoshihiro KUMAGAI, Madoka TAKAHASHI
  • Patent number: 8899171
    Abstract: The present teachings relate to various embodiments of an hermetically-sealed gas enclosure assembly and system that can be readily transportable and assemblable and provide for maintaining a minimum inert gas volume and maximal access to various devices and apparatuses enclosed therein. Various embodiments of an hermetically-sealed gas enclosure assembly and system of the present teachings can have a gas enclosure assembly constructed in a fashion that minimizes the internal volume of a gas enclosure assembly, and at the same time optimizes the working space to accommodate a variety of footprints of various OLED printing systems. Various embodiments of a gas enclosure assembly so constructed additionally provide ready access to the interior of a gas enclosure assembly from the exterior during processing and readily access to the interior for maintenance, while minimizing downtime.
    Type: Grant
    Filed: December 19, 2012
    Date of Patent: December 2, 2014
    Assignee: Kateeva, Inc.
    Inventors: Justin Mauck, Alexander Sou-Kang Ko, Eliyahu Vronsky, Shandon Alderson
  • Patent number: 8889216
    Abstract: The present invention provides a method of manufacturing an electronic display. The exemplary method includes depositing a first conductive medium within a plurality of cavities of a substrate to form a plurality of first conductors. A plurality of electronic components in a suspending medium are then deposited within the plurality of cavities, and the plurality of electronic components are oriented using an applied field, followed by a bonding of the plurality of electronic components to the plurality of first conductors. A second, transmissive conductive medium is then deposited and bonded to the plurality of electronic components.
    Type: Grant
    Filed: May 31, 2007
    Date of Patent: November 18, 2014
    Assignee: NthDegree Technologies Worldwide Inc
    Inventors: William Johnstone Ray, Mark David Lowenthal
  • Patent number: 8871298
    Abstract: A method for preparing a flexible film substrate with a low glass transition temperature can be used in the production of an article that retains dimensions and improves the surface smoothness after high temperature processing. The invention, for example, would enable low temperature films such as PET and PEN to be dimensionally stable and ultra flat at conditions commonly used in electronic processing which can typically exceed 200° C. More specifically, the methods enable the use of e.g. barrier films based on PET or PEN in OLED/PLED manufacturing.
    Type: Grant
    Filed: February 7, 2007
    Date of Patent: October 28, 2014
    Assignee: 3M Innovative Properties Company
    Inventors: Mark A. Roehrig, Yufeng Liu, Robert W. Peterson
  • Patent number: 8872164
    Abstract: An organic light-emitting element includes an anode, a functional layer, and a hole injection layer between the anode and the functional layer. The functional layer contains an organic material. The hole injection layer injects holes to the functional layer. The hole injection layer comprises tungsten oxide and includes an occupied energy level that is approximately 1.8 electron volts to approximately 3.6 electron volts lower than a lowest energy level of a valence band of the hole injection layer in terms of binding energy.
    Type: Grant
    Filed: November 17, 2011
    Date of Patent: October 28, 2014
    Assignee: Panasonic Corporation
    Inventors: Satoru Ohuchi, Yoshiaki Tsukamoto, Takahiro Komatsu, Kei Sakanoue
  • Patent number: 8860011
    Abstract: One pixel is divided into a first region including a first light emitting element and a second region including a second light emitting element, wherein the first region emits light in one direction and the second region emits light in the direction opposite to that of the first region. Independently driving the first light emitting element and the second light emitting element allows images to be displayed independently on the surface.
    Type: Grant
    Filed: December 22, 2011
    Date of Patent: October 14, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Teruyuki Fujii, Shunpei Yamazaki
  • Publication number: 20140302627
    Abstract: In a method of manufacturing a quantum dot, a core may be formed using (utilizing) at least one cation precursor and at least one anion precursor. The core may be reacted with a shell forming precursor and a ligand forming precursor for more than one hour to form a shell enclosing the core and a ligand. A nanoparticle including the core, the shell and the ligand may be washed.
    Type: Application
    Filed: April 3, 2014
    Publication date: October 9, 2014
    Applicants: INDUSTRY-ACADEMIA COOPERATION FOUNDATION, HONGIK UNIVERSITY, SAMSUNG DISPLAY CO., LTD.
    Inventors: Hee-Joo Ko, Hee-Sun Yang, Ki-Heon Lee, Jeong-Hoon Lee, Chang-Ho Lee
  • Patent number: 8841142
    Abstract: A coating film (90) is formed by causing vapor deposition particles (91) discharged from a vapor deposition source opening (61) of a vapor deposition source (60) to pass through a space (82) between a plurality of limiting plates (81) of a limiting plate unit (80) and a mask opening (71) of a vapor deposition mask in this order and adhere to a substrate while the substrate is moved relative to the vapor deposition mask in a state in which the substrate (10) and the vapor deposition mask (70) are spaced apart at a fixed interval. It is determined whether or not it is necessary to correct the position of at least one of the plurality of limiting plates in the X axis direction, and in the case where it is necessary to correct the position, the position of at least one of the plurality of limiting plates in the X axis direction is corrected. Accordingly, a coating film whose edge blur is suppressed can be stably formed at a desired position on a large-sized substrate.
    Type: Grant
    Filed: December 13, 2011
    Date of Patent: September 23, 2014
    Assignee: Sharp Kabushiki Kaisha
    Inventors: Shinichi Kawato, Satoshi Inoue, Tohru Sonoda
  • Patent number: 8828560
    Abstract: The present invention relates to light-emitting devices and novel emitter materials as well as emitter systems and, in particular, organic light-emitting devices (OLEDs). In particular, the invention relates to the use of luminescent complexes as emitters in such devices.
    Type: Grant
    Filed: July 2, 2012
    Date of Patent: September 9, 2014
    Assignee: Merck Patent GmbH
    Inventors: Hartmut Yersin, Uwe Monkowius, Rafal Czerwieniec
  • Patent number: 8821963
    Abstract: A first substrate which includes a reflective layer having an opening, a light-absorbing layer, and a material layer formed in contact with the light-absorbing layer over one of surfaces is provided; the surface of the first substrate over which the material layer is formed and a deposition target surface of the second substrate are disposed to face each other; and irradiation with laser light whose repetition rate is greater than or equal to 10 MHz and pulse width is greater than or equal to 100 fs and less than or equal to 10 ns is performed from the other surface side of the first substrate to selectively heat a part of the material layer at a position overlapping with the opening of the reflective layer and deposit the part of the material layer over the deposition target surface of the second substrate.
    Type: Grant
    Filed: January 29, 2009
    Date of Patent: September 2, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Koichiro Tanaka, Takahiro Ibe, Kohei Yokoyama, Hisao Ikeda, Norifumi Takesue
  • Patent number: 8816992
    Abstract: A display device having at least a display circuit for displaying an image, and a light receiving sensor for detecting a light disposed is provided. When a light receiving circuit region including the light receiving sensor is made a dark portion, and a region other than the light receiving circuit region is made a light portion, the display circuit and the light receiving sensor are disposed so that a spatial frequency of a repetitive pattern of the light portions and the dark portions becomes equal to or higher than 10 cpd.
    Type: Grant
    Filed: March 31, 2011
    Date of Patent: August 26, 2014
    Assignee: Japan Display West Inc.
    Inventors: Mitsuru Tateuchi, Go Yamanaka, Tsutomu Harada, Takeru Tamayama, Masafumi Matsui
  • Patent number: 8802185
    Abstract: An object is to provide a deposition method for smoothly obtaining desired pattern shapes of material layers and a method for manufacturing a light-emitting device while throughput is improved when a plurality of different material layers is stacked on a substrate. A material layer is selectively formed in advance in a position overlapped with a light absorption layer over a first substrate by pump feeding. Three kinds of light-emitting layers are deposited on one deposition substrate. This first substrate and a second substrate that is to be a deposition target substrate are arranged to face each other, and the light absorption layer is heated by being irradiated with light, whereby a film is deposited on the second substrate. Three kinds of light-emitting layers can be deposited with positional accuracy by performing only one position alignment before light irradiation.
    Type: Grant
    Filed: May 27, 2009
    Date of Patent: August 12, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Koichiro Tanaka, Hisao Ikeda, Satoshi Seo
  • Patent number: 8802186
    Abstract: The disclosure relates to a method and apparatus for preventing oxidation or contamination during a circuit printing operation. The circuit printing operation can be directed to OLED-type printing. In an exemplary embodiment, the printing process is conducted at a load-locked printer housing having one or more of chambers. Each chamber is partitioned from the other chambers by physical gates or fluidic curtains. A controller coordinates transportation of a substrate through the system and purges the system by timely opening appropriate gates. The controller may also control the printing operation by energizing the print-head at a time when the substrate is positioned substantially thereunder.
    Type: Grant
    Filed: February 22, 2013
    Date of Patent: August 12, 2014
    Assignee: Kateeva, Inc.
    Inventors: Sass Somekh, Eliyahu Vronsky
  • Patent number: 8802195
    Abstract: The disclosure relates to a method and apparatus for preventing oxidation or contamination during a circuit printing operation. The circuit printing operation can be directed to OLED-type printing. In an exemplary embodiment, the printing process is conducted at a load-locked printer housing having one or more of chambers. Each chamber is partitioned from the other chambers by physical gates or fluidic curtains. A controller coordinates transportation of a substrate through the system and purges the system by timely opening appropriate gates. The controller may also control the printing operation by energizing the print-head at a time when the substrate is positioned substantially thereunder.
    Type: Grant
    Filed: February 22, 2013
    Date of Patent: August 12, 2014
    Assignee: Kateeva, Inc.
    Inventors: Sass Somekh, Eliyahu Vronsky
  • Publication number: 20140217326
    Abstract: Provided according to embodiments of the invention are method of coating a phosphor that include contacting the phosphor with a sol comprising at least one of silica, alumina, borate and a precursor thereof, to form a coating on the phosphor; and heating the phosphor. Also provided are phosphors that are coated with alumina, silica and/or borate, and light emitting devices that include such phosphors.
    Type: Application
    Filed: April 7, 2014
    Publication date: August 7, 2014
    Applicant: Cree, Inc.
    Inventors: Harry A. Seibel, II, Brian Thomas Collins
  • Patent number: 8795462
    Abstract: An article is disclosed comprising a network-like pattern of conductive traces formed of at least partially-joined nanoparticles that define randomly-shaped cells that are generally transparent to light and contain a transparent filler material. In a preferred embodiment, the filler material is conductive such as a metal oxide or a conductive polymer. In another preferred embodiment, the filler material is an adhesive that is can be used to transfer the network from one substrate to another. A preferred method of forming the article is also disclosed wherein an emulsion containing the nanoparticles in the solvent phase and the filler material in the water phase is coated onto a substrate. The emulsion is dried and the nanoparticles self-assemble to form the traces and the filler material is deposited in the cells. An electroluminescent device is also disclosed wherein the article of the invention forms a transparent electrode in the device.
    Type: Grant
    Filed: December 19, 2008
    Date of Patent: August 5, 2014
    Assignee: Cima NanoTech Israel Ltd.
    Inventors: Arkady Garbar, Fernando De La Vega, Eric L. Granstrom, Lorenzo Mangolini
  • Patent number: 8790745
    Abstract: A method of manufacturing an electroluminescent display apparatus includes: discharging first droplets of the fluid luminescent material from the first nozzles to the target discharge areas when the first nozzles are positioned in an area above the target discharge areas so that all of the first droplets are arranged in the target discharge areas on different X-axis direction positions so as not to overlap each other when viewed in the Y-axis direction; and discharging second droplets of fluid luminescent material from the second nozzles to the target discharge areas to which the first droplets have been discharged when the second nozzles are positioned in the area above the target discharge areas after a predetermined period of time passed since the discharge of the first droplets to the target discharge areas.
    Type: Grant
    Filed: April 27, 2012
    Date of Patent: July 29, 2014
    Assignee: Seiko Epson Corporation
    Inventors: Hiroshi Kiguchi, Kazumi Aruga, Mitsuru Kuribayashi
  • Patent number: 8784938
    Abstract: A functional-film fabricating method includes applying a coating by ejecting droplets of functional liquid from plural nozzles to ejection areas for forming a functional film which are surrounded by bounded areas having a liquid repellent property, during a single scanning. In applying the coating, when there is a non-ejectable nozzle out of plural nozzles to be used for applying a coating to a single ejection area, the amount of droplets of the functional liquid ejected from another ejectable nozzle to be used for applying a coating to this ejection area is larger than that of cases where there is no non-ejectable nozzle.
    Type: Grant
    Filed: June 7, 2010
    Date of Patent: July 22, 2014
    Assignee: Panasonic Corporation
    Inventors: Naoki Suzuki, Takao Nagumo, Hidehiro Yoshida, Hiroshi Hayata, Masahiro Muro
  • Patent number: 8772762
    Abstract: Provided is an organic electroluminescent device including: a substrate (11, 101); a first electrode (12, 102) formed on the substrate (11, 101) and including a pixel region; a partition wall (23, 203) formed on the substrate (11, 101), partitioning the first electrode (12, 102), and including a surface with a recessed and projected form; a luminescent medium layer (19, 109) formed on the pixel region and the partition wall (23, 203), a film thickness of the partition wall (23, 203) being uneven according to the recessed and projected form; and a second electrode (17, 107) formed on the luminescent medium layer (19, 109).
    Type: Grant
    Filed: September 22, 2011
    Date of Patent: July 8, 2014
    Assignee: Toppan Printing Co., Ltd.
    Inventors: Shingo Kaneta, Yuki Yasu, Ryo Syoda, Noriko Morikawa, Eiichi Kitazume
  • Patent number: 8764504
    Abstract: The lighting device includes a first resin layer having a first refractive index and a second resin layer having a second refractive index lower than the first refractive index and higher than the refractive index of the air, which are over a light-emitting element layer, a plurality of granules provided at the interface between the first resin layer and the second resin layer and each having the second refractive index or a plurality of projections each having an apex provided inside the first resin layer and a flat surface in contact with the interface between the first resin layer and the second resin layer and having the second refractive index, an uneven structure provided at the interface with the air, and a resin substrate having the second refractive index.
    Type: Grant
    Filed: February 17, 2012
    Date of Patent: July 1, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Toshiji Hamatani, Hiroki Adachi
  • Publication number: 20140176022
    Abstract: The invention describes electronic devices comprising a metal complex compound having a first metallic centre M1 and a second metallic centre M2 and a polydentate, asymmetrical ligand L1, which contains a phosphido or amido donor D1 bridging the first and second metallic centres M1 and M2, and a further donor D2, which is bonded either to the first or to the second metallic centre, and uses of a complex of this type in the electronic field and for the generation of light, and to the production of devices of this type.
    Type: Application
    Filed: July 25, 2012
    Publication date: June 26, 2014
    Applicant: Merck Patent GmbH
    Inventors: Lars Wesemann, Hartmut Schubert, Hermann August Mayer, Harmut Yersin, Andreas Rausch, Janet Arras
  • Patent number: 8758649
    Abstract: The invention relates to a process for preparing a formulation comprising an organic semiconductor (OSC) and one or more organic solvents, to novel formulations obtained by this process, to their use as coating or printing inks for the preparation of organic electronic (OE) devices, especially organic field effect transistors (OFET) and organic photovoltaic (OPV) cells, to a process for preparing OE devices using the novel formulations, and to OE devices prepared from such a process or from the novel formulations.
    Type: Grant
    Filed: February 6, 2009
    Date of Patent: June 24, 2014
    Assignee: Merck Patent GmbH
    Inventors: Mark James, Philip Edward May
  • Publication number: 20140161968
    Abstract: An inkjet printhead, and an apparatus and method for manufacturing an organic luminescence display using the inkjet printhead. An apparatus for manufacturing an organic luminescence display including an inkjet printhead placeable over a substrate and including a plurality of nozzles; and a moving unit configured to move at least one of the inkjet printhead or the substrate relative to the other, and the plurality of nozzles includes one or more ink ejecting nozzles ejecting an organic light-emitting ink; and one or more solvent ejecting nozzles ejecting a first solvent.
    Type: Application
    Filed: May 31, 2013
    Publication date: June 12, 2014
    Inventor: Jin Goo KANG
  • Patent number: 8749132
    Abstract: An organic light emitting device (“OLED”) including a substrate; a plurality of polymer beads disposed on a substrate; a light emitting layer covering the plurality of polymer beads and having an embossed structure; and a cathode disposed on the light emitting layer.
    Type: Grant
    Filed: June 10, 2009
    Date of Patent: June 10, 2014
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Won-jae Joo, Jhun-mo Son, Hye-yeon Yang
  • Patent number: 8747681
    Abstract: A preparation method of the fluorescent powder layer (108, 208) is provided.
    Type: Grant
    Filed: July 14, 2010
    Date of Patent: June 10, 2014
    Assignee: Ocean's King Lighting Science & Technology Co., Ltd.
    Inventors: Mingjie Zhou, Wenbo Ma, Yugang Liu
  • Patent number: 8747178
    Abstract: It is a problem to provide an electric apparatus less in consumption power and long in life by the manufacture using the display device. An insulating bank is provided in a form surrounding the pixel portions on first electrodes over a substrate. The entire surface is applied, by a wet scheme (method), with an organic conductive film which has a thickness form of T2>T1>T3 under the influence of the insulating bank. Accordingly, the portion T3 has an increased resistance in a lateral direction, making possible to prevent against crosstalk. Due to a conductive polymer as a buffer layer, a display device can be provided which is low in drive voltage. Furthermore, because the portion T2 is increased in thickness, the electric-field concentration is relaxed at and around the pixel portion. This makes it possible to prevent the organic light-emitting element from deteriorating at around the pixel.
    Type: Grant
    Filed: May 23, 2013
    Date of Patent: June 10, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Satoshi Seo, Shunpei Yamazaki
  • Patent number: 8740664
    Abstract: The present invention provides an organic light-emitting element where a lower electrode, an organic compound layer and an upper electrode are laminated on a substrate, wherein the upper electrode of the organic EL element is formed by a laminate of at least a conductive first inorganic film, a conductive organic film and a conductive second inorganic film, in order to suppress the occurrence of dark spot, so that the occurrence of pinholes in the upper electrode leading to dark spots is suppressed. Here, pinholes refer to holes in the upper electrode that penetrate upper electrode from the organic compound layer underneath to the atmosphere above.
    Type: Grant
    Filed: May 24, 2013
    Date of Patent: June 3, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Kaoru Tsuchiya
  • Patent number: 8728950
    Abstract: Disclosed are a coating method of forming a coating with a stable thickness from a coating solution with a low viscosity employing a slit-type die coater and an organic electroluminescence element prepared employing the coating method. The coating method employing a slit-type die coater comprises the steps of allowing a lip tip of the slit-type die coater to bring close to the substrate to form a coating solution bead between the lip tip and the substrate, and coating on the substrate a coating solution ejected from a slit outlet at the lip tip while relatively moving the slit-type die coater and the substrate, thereby forming at least two coating layers in the stripe shape, featured in that the lip tip has at least one groove in the coating region in the coating width direction, and a pressure at the slit outlet of the coating solution of the bead is negative or zero.
    Type: Grant
    Filed: June 15, 2010
    Date of Patent: May 20, 2014
    Assignee: Konica Minolta Holdings, Inc.
    Inventors: Shigetoshi Kawabe, Nobuaki Takahashi
  • Patent number: 8721922
    Abstract: Disclosed herein are compositions comprising an electron transport compound, an emissive compound, and an organic solvent. The emissive compound comprises an organic indium complex attached to a nanoparticle core. These compositions are useful in fabricating light emitting devices and can be deposited on a substrate via a printing process.
    Type: Grant
    Filed: October 13, 2009
    Date of Patent: May 13, 2014
    Assignee: Nitto Denko Corporation
    Inventors: Amane Mochizuki, Takashi Kondo, Sheng Li, Jesse Dan Froehlich, Hyunsik Chae
  • Patent number: 8715773
    Abstract: A method of making a filter adjusts the bottom heights of the color-resisting colors to make the top ends of the color-resisting blocks be in a same level by disposing the foundation layer between the transparent substrate and the light-shielding layer and disposing the groove in the foundation layer, so that ensuring that surfaces of the filter have a good evenness and the alignment of liquid crystals is normal for enhancing the displaying effect of the liquid crystal display. The present invention improves the bottom evenness of the through holes by disposing the foundation layer on the bottoms of the through holes, thereby eliminating the “ox horn-shaped segment difference” of the protruding edges of the color-resisting blocks formed later.
    Type: Grant
    Filed: May 11, 2011
    Date of Patent: May 6, 2014
    Assignee: Shenzhen China Star Optoelectronics Technology Co., Ltd.
    Inventor: Chun-ming Wu
  • Patent number: 8715774
    Abstract: A liquid droplet ejection method comprises: ejecting a liquid droplet of a functional liquids onto a substrate while scanning relatively the substrate and an ejection head. A plurality of kinds of functional liquids have different drying rates and are ejected onto respective different positions in respective scanning directions during the same scanning operation. Scanning regions of the plurality of kinds of the functional liquids at least partly are overlapped each other.
    Type: Grant
    Filed: April 3, 2008
    Date of Patent: May 6, 2014
    Assignee: Seiko Epson Corporation
    Inventors: Tsuyoshi Kato, Kazumi Aruga
  • Publication number: 20140117292
    Abstract: A nanocrystal including a core including a Group III element and a Group V element, and a monolayer shell on the surface of the core, the shell including a compound of the formula ZnSexS(1-x), wherein 0?x?1, and wherein an average mole ratio of Se:S in the monolayer shell ranges from about 2:1 to about 20:1.
    Type: Application
    Filed: September 27, 2013
    Publication date: May 1, 2014
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Shin Ae JUN, Eun Joo JANG, Soo Kyung KWON, Taek Hoon KIM, Won Joo LEE
  • Patent number: 8709529
    Abstract: A light-emissive device comprising a light-emissive material provided between first and second electrodes such that charge carriers can move between the first and second electrodes and the light-emissive material, wherein the device includes a layer of a polymer blend provided between the first and second electrodes, phase separation of the polymers in the polymer blend having been induced in at least a portion of the polymer blend so as to control the propagation of light emitted by the light-emissive material in a predetermined direction.
    Type: Grant
    Filed: September 23, 2011
    Date of Patent: April 29, 2014
    Assignee: Cambridge Enterprise Ltd
    Inventors: J. Devin Mackenzie, Ana Claudia Arias, Richard Henry Friend, Wilhelm Huck
  • Patent number: 8703301
    Abstract: Provided are an organic light emitting device including a substrate; a first electrode; a second electrode; and an organic layer interposed between the first electrode and the second electrode, wherein the organic layer includes a first layer including an organic-metal complex represented by Formula 1 below, and a method of preparing the same: wherein Formula 1 is described in the description of the invention.
    Type: Grant
    Filed: May 5, 2009
    Date of Patent: April 22, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: O-hyun Kwon, Sang-hoon Park, Byoung-ki Choi, Dong-woo Shin
  • Patent number: 8698393
    Abstract: A method for producing electroluminescent textiles and to electroluminescent textiles produced accordingly is provided. A layer arrangement (10) of an electroluminescent textile comprises a textile substrate (1), a protective layer (2), a first transparent conductive layer or front electrode (3), a light-emitting layer (4), a dielectric layer (5), a second conductive layer or back electrode (6), a conductive rail (7), and a cover layer (8). As associated method is further provided.
    Type: Grant
    Filed: May 20, 2010
    Date of Patent: April 15, 2014
    Assignee: Hochschule Niederrhein
    Inventors: Maike Rabe, Evelyn Lempa, Christine Maria Steinem
  • Publication number: 20140087501
    Abstract: Graphene is used as a replacement for indium tin oxide as a transparent conductive electrode which can be used in an organic light emitting diode (OLED) device. Using graphene reduces the cost of manufacturing OLED devices and also makes the OLED device extremely flexible. The graphene is chemically doped so that the work function of the graphene is shifted to a higher value for better hole injection into the OLED device as compared to an OLED device containing an undoped layer of graphene. An interfacial layer comprising a conductive polymer and/or metal oxide can also be used to further reduce the remaining injection barrier.
    Type: Application
    Filed: October 25, 2012
    Publication date: March 27, 2014
    Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATION
    Inventors: Tze-Chiang Chen, James B. Hannon, Ning Li, Satoshi Oida, Devendra K. Sadana, George S. Tulevski
  • Publication number: 20140087500
    Abstract: A transparent conductive electrode stack containing a work function adjusted carbon-containing material is provided. Specifically, the transparent conductive electrode stack includes a layer of a carbon-containing material and a layer of a work function modifying material. The presence of the work function modifying material in the transparent conductive electrode stack shifts the work function of the layer of carbon-containing material to a higher value for better hole injection into the OLED device as compared to a transparent conductive electrode that includes only a layer of carbon-containing material and no work function modifying material.
    Type: Application
    Filed: October 25, 2012
    Publication date: March 27, 2014
    Applicant: International Business Machines Corporation
    Inventors: Tze-Chiang Chen, James B. Hannon, Ning Li, Satoshi Oida, George S. Tulevski, Devendra K. Sadana
  • Publication number: 20140078126
    Abstract: Light emitting devices including sub-pixels having different numbers of emissive layers are provided. At least one sub-pixel of a first color may include a single emissive layer, and at least one sub-pixel of a second color may include multiple emissive layers disposed in a vertical stack. Light emitting devices in which different voltages are applied to each sub-pixel or group of sub-pixels are also provided. In some configurations, the voltage to be applied to a sub-pixel may be selected based upon the number of emissive layers in the sub-pixel.
    Type: Application
    Filed: September 14, 2012
    Publication date: March 20, 2014
    Inventors: Michael Hack, Julia J. Brown, Michael Stuart Weaver, Mauro Premutico
  • Publication number: 20140079874
    Abstract: A method for printing fluid layers for producing functional layers for electronic components in a rotary printing machine. The drying time tdry, or the time timm between the printing of the fluid layer in the printing nip of cylinders of the printing machine and the immobilization of the fluid layer, and the time (x·tlev) after which differences in thickness in the fluid layer have subsided after printing to a residual level that is no longer problematic for the functionality of the layer, are adapted to one another. This is effected either by way of technical method-related measures after leaving the printing nip or by suitable setting of the rheology of the fluid to be printed.
    Type: Application
    Filed: September 20, 2013
    Publication date: March 20, 2014
    Applicant: HEIDELBERGER DRUCKMASCHINEN AG
    Inventors: MICHAELA AGARI, GERARDO HERNANDEZ-SOSA, NORMAN MECHAU, INGO RINGLE, ANDREAS RUPPRECHT
  • Patent number: 8664669
    Abstract: An organic EL element has an anode, a cathode, a hole injection layer and at least one functional layer disposed between the anode and the cathode. The at least one functional layer contains an organic material. Holes are injected into the functional layer from the hole injection layer, which contains a tungsten oxide. A Ultraviolet Photoelectron Spectroscopy (UPS) spectrum obtained from a UPS measurement has a protrusion near a Fermi surface and within a region corresponding to a binding energy range lower than a top of the valence band. The tungsten oxide contained in the hole injection layer satisfies a condition, determined from an X-ray Photoelectronic Spectroscopy measurement, that a ratio in a number density of atoms other than tungsten and oxygen atoms to the tungsten atoms does not exceed approximately 0.83.
    Type: Grant
    Filed: January 30, 2012
    Date of Patent: March 4, 2014
    Assignee: Panasonic Corporation
    Inventors: Satoru Ohuchi, Hirofumi Fujita, Shinya Fujimura
  • Publication number: 20140057044
    Abstract: A method for coating polyimide on liquid crystal display panel includes: (1) providing nozzles and a glass substrate; (2) tightly and regularly juxtaposing the nozzles in a row so that the row has a length that corresponds to width of the glass substrate; (3) vertically positioning the entire row above the glass substrate so as to correspond to the glass substrate along the width of the glass substrate; (4) simultaneously activating the nozzles to allow each of the nozzles to simultaneously drip down polyimide solution according to predetermined flow rate, while moving the glass substrate so as to have the polyimide solution uniformly applied to the glass substrate form a polyimide film; and (5) using a doctor blade to shape the polyimide film that is uniformly coated on the glass substrate so as to provide a regular and flat surface of the polyimide film on the glass substrate.
    Type: Application
    Filed: September 13, 2012
    Publication date: February 27, 2014
    Applicant: SHENZHEN CHINA STAR OPTOELECTRONICS TECHOLOGY CO., LTD.
    Inventors: Bingcheng Huang, Xiaoxin Zhang, Huifang Duan, Hao Jin, Junjie Huang
  • Publication number: 20140057043
    Abstract: A method of making a display device includes providing a first substrate having an array of pixels located in correspondence thereto. The pixels are separated by inter-pixel gaps. A first electrode having a length direction is located over the first substrate and extends across at least a portion of the array of pixels, the first electrode including a plurality of electrically connected micro-wires formed in a micro-pattern. The micro-pattern has a first set of parallel micro-wires oriented at a first angle non-orthogonal to the length direction and a second set of parallel micro-wires oriented at a second angle non-orthogonal to the length direction different from the first angle. The micro-wires of the first and second sets intersect to form an array of electrically connected micro-wire intersections. At least every other micro-wire intersection on the micro-wires of the first set is located between the pixels in the inter-pixel gaps.
    Type: Application
    Filed: August 22, 2012
    Publication date: February 27, 2014
    Inventor: RONALD STEVEN COK
  • Publication number: 20140049484
    Abstract: Disclosed herein is a touch panel, including: a substrate; a black matrix formed on the substrate and defining a pixel area; a first electrode formed on the black matrix; a color filter layer formed in the pixel area on the substrate; and a second electrode formed on the color filter layer.
    Type: Application
    Filed: October 23, 2012
    Publication date: February 20, 2014
    Applicant: SAMSUNG ELECTRO-MECHANICS CO., LTD.
    Inventor: Seung Hyun Ra
  • Patent number: 8652657
    Abstract: Provided is an organic EL device comprising: an organic EL element including an anode 114, an organic EL layer 116, and a cathode 117; a wiring layer 106 that supplies power to the anode 114; and an organic layer 111 interposed between the anode 114 and the wiring layer 106, wherein the organic layer 111 includes (i) a first organic layer 112 including an azatriphenylene derivative and (ii) a second organic layer 113 including an amine-based compound, the first organic layer 112 being layered on the wiring layer 106, and the second organic layer 113 being layered on the first organic layer 112.
    Type: Grant
    Filed: May 3, 2012
    Date of Patent: February 18, 2014
    Assignee: Panasonic Corporation
    Inventors: Masaomi Shibata, Kenji Okumoto, Kouhei Koresawa
  • Patent number: 8647707
    Abstract: A method of forming a pattern includes: providing a heating substrate that selectively controls positions where heat is generated by controlling locations where electric current flows; forming a pattern forming material on a surface of the heating substrate; aligning a patterning substrate, on which a pattern may be formed, to face a surface of the heating substrate; and selectively applying electric current to the heating substrate to transfer some of the pattern forming material onto the patterning substrate. According to the method of forming the pattern and a method of fabricating an OLED, the pattern is transferred by heating the pattern forming material formed on the heating substrate, and thus, the pattern may be formed with high accuracy without using a mask, and the pattern forming material remaining on the heating substrate may be re-used.
    Type: Grant
    Filed: December 16, 2010
    Date of Patent: February 11, 2014
    Assignee: Samsung Display Co., Ltd.
    Inventors: Jae-Seok Park, Hyun-Chul Lee
  • Patent number: 8647706
    Abstract: The problem regarding volatileness of a solvent in an EL forming material, which occurs in adopting printing, are solved. An EL layer is formed in a pixel, portion of a light emitting device by printing. Upon formation of the EL layer, a printing chamber is pressurized to reach a pressure equal to or higher than the atmospheric pressure, and the printing chamber is filled with inert gas or set to a solvent atmosphere. Thus the difficulty in forming an EL layer by printing is eliminated.
    Type: Grant
    Filed: November 14, 2011
    Date of Patent: February 11, 2014
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventor: Shunpei Yamazaki
  • Publication number: 20140036189
    Abstract: In a color filter substrate and a liquid crystal display device including the same, the color filter substrate includes: a first black matrix not having an opening; a second black matrix having an opening; the first black matrix and the second black matrix being formed on a substrate; an auxiliary pattern disposed in the opening; a color filter covering the first and second black matrixes and formed in each of a plurality of pixels; an overcoat layer formed on the color filter; a first column spacer formed on the overcoat layer so as to correspond to the first black matrix; and a second column spacer formed above the auxiliary pattern so as to correspond to the second black matrix.
    Type: Application
    Filed: November 19, 2012
    Publication date: February 6, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Young-Dae Yi, Dong-Gyu Kim
  • Publication number: 20140028956
    Abstract: A display panel includes an array substrate, an opposite substrate facing the array substrate, and a liquid crystal layer between the substrates. The array substrate includes a first polarizer, a first insulating layer covering the first metal layer, a gate electrode on the first insulating layer, a gate insulation layer on the gate electrode, a channel layer on the gate insulation layer, source and drain electrodes on the channel layer, a protecting layer covering the source and drain electrodes and including a contact hole exposing the drain electrode, and a first electrode on the protecting layer and electrically connected to the drain electrode through the contact hole. The first polarizer includes a first substrate, a first antistatic layer on the first substrate and including a conductive material, and a first metal layer on the first antistatic layer and including a plurality of protrusions which form a wire grid pattern.
    Type: Application
    Filed: January 4, 2013
    Publication date: January 30, 2014
    Applicant: SAMSUNG DISPLAY CO., LTD.
    Inventors: Sang-Gun CHOI, Woo-Yong SUNG, Tae-Woon CHA
  • Publication number: 20140029080
    Abstract: An electrowetting display device includes a first base substrate, a second base substrate facing the first base substrate, an electrowetting layer that includes a first fluid and an electrically conducting second fluid that are immiscible with each other, black partition walls disposed on the first base substrate to partition a display area into pixel areas, and an electronic device that applies a voltage to the electrowetting layer to control the electrowetting layer. The partition walls restrict a flow of at least one of the first fluid or the second fluid.
    Type: Application
    Filed: December 3, 2012
    Publication date: January 30, 2014
    Applicant: Liquavista B.V.
    Inventor: Tae Hyung Hwang