Electroluminescent Lamp Patents (Class 427/66)
  • Publication number: 20090155458
    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: Application
    Filed: February 7, 2007
    Publication date: June 18, 2009
    Inventors: Mark A. Roehrig, Yufeng R. Liu, Robert W. Peterson
  • Patent number: 7547462
    Abstract: The present invention relates to a flat panel display, and more particularly, to a method of fabricating an organic light emitting display device so as to improve device characteristics by patterning a plurality of organic layers using a heat transfer method to optimize thicknesses according to R, G and B pixels. The method includes: forming lower electrodes of R, G and B pixels on an insulating substrate; forming an organic layer on the insulating substrate; and forming an upper electrode on the organic layer. Formation of the organic layer includes forming a hole injection layer and a hole transport layer of the R, G and B pixels on the entire surface of the substrate as a common layer. The R and G emission layers are patterned by a heat transfer method using a heat transfer device having a transfer layer such that an organic layer is patterned to a thickness obtained by subtracting a thickness of the B emission layer from the thicknesses of the R and G emission layers required in R and G colors.
    Type: Grant
    Filed: December 17, 2004
    Date of Patent: June 16, 2009
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Mu-Hyun Kim, Byung-Doo Chin, Seong-Taek Lee
  • Publication number: 20090146557
    Abstract: A light-emitting device includes a substrate, and a light-emitting element including a lower electrode, a light-emitting function layer, and an upper electrode that are formed on the substrate in that order. At least one auxiliary electrode in a strip shape extends in a first direction on and in contact with the upper electrode. The auxiliary electrode has a cross section taken along the direction intersecting the first direction, having a shape including a tapered portion. The light-emitting device also includes a barrier layer covering the auxiliary electrode and the upper electrode. The barrier layer prevents water and oxygen from penetrating into the light-emitting element.
    Type: Application
    Filed: December 2, 2008
    Publication date: June 11, 2009
    Applicant: SEIKO EPSON CORPORATION
    Inventors: Susumu SHINTO, Shinichi YOTSUYA
  • Publication number: 20090146553
    Abstract: An organic EL element has a first electrode, a second electrode facing the first electrode, and a luminescence medium layer including a carrier transport layer and an organic luminescence layer provided between the electrodes. The carrier transport layer is an inorganic oxide layer obtained by performing an oxidation treatment after forming the layer.
    Type: Application
    Filed: September 30, 2008
    Publication date: June 11, 2009
    Applicant: Toppan Printing Co., Ltd.
    Inventors: Yuko Abe, Eiichi Kitazume, Noriko Morikawa
  • Patent number: 7544383
    Abstract: 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: Grant
    Filed: October 11, 2002
    Date of Patent: June 9, 2009
    Assignee: Osram Opto Semiconductor GmbH
    Inventors: Jan Birnstock, Joerg Blaessing, Karsten Heuser, Matthias Stoessel, Georg Wittmann
  • Publication number: 20090142476
    Abstract: A flexible barrier assembly having a flexible visible light-transmissive substrate having a Tg greater than or equal to that of heat-stabilized polyethylene terephthalate (“HSPET”) overcoated with a first polymer layer having a Tg greater than or equal to that of HSPET and further overcoated with at least two visible light-transmissive inorganic barrier layers separated by at least one second polymer layer having a Tg greater than or equal to that of HSPET can be used to mount, cover, encapsulate or form moisture- and oxygen-sensitive articles such as organic light emitting devices and light valves.
    Type: Application
    Filed: January 30, 2009
    Publication date: June 4, 2009
    Inventors: Raghunath Padiyath, Mark A. Roehrig
  • Publication number: 20090140628
    Abstract: The invention relates to a discharge vessel of a quartz glass for discharge lamps with a diffusion barrier inner layer of silicon oxide, which as a single layer is applied and/or is generated on the inner surface as well as to a method for generating and/or applying such a diffusion barrier inner layer and to the use of such a discharge vessel.
    Type: Application
    Filed: December 19, 2005
    Publication date: June 4, 2009
    Applicant: SCHOTT AG
    Inventors: Thomas Kuepper, Margareta Hamel, Christoph Moelle, Dietmar Ehrlichmann, Rainer Kronfoth, Klaus Guenther
  • Publication number: 20090142475
    Abstract: A film depositing apparatus includes: a chamber in which a substrate is disposed; a gas introducing portion for introducing a reactive gas into the chamber; a gas exhausting portion for exhausting the reactive gas from the chamber; and a control portion for controlling particle exhausting processing for exhausting particles within the chamber from the gas exhausting portion either in a middle of depositing a film on the substrate disposed within the chamber in accordance with a reaction based on the reactive gas, or in a stage of completion of the film deposition. The control portion carries out the control in a way that as the particle exhausting processing performed in a phase of film deposition, the reactive gas is introduced into the chamber at a flow rate more than that in the phase of the film deposition, and is exhausted from the gas exhausting portion.
    Type: Application
    Filed: December 3, 2008
    Publication date: June 4, 2009
    Applicant: Sony Corporation
    Inventors: Shinichiro Morikawa, Atsushi Yamada
  • Publication number: 20090134771
    Abstract: A method of uniformly applying a phosphor onto the internal surface of a glass tube of spiral configuration having opening at its both ends. After an injection process is performed while glass tube (11) is held with openings (24,25) facing upward, the glass tube is turned upside down and held such that the openings are positioned in the inferior region. While rotating the glass tube around pivot axis (A), the phosphor suspension is caused to flow out. The glass tube is turned upside down once more and held to cause the openings to position in the superior region for a given period of time with the result that the phosphor suspension is caused to flow to uniformize the thickness thereof. Further once more the glass tube is turned upside down to cause the openings to position in the inferior region. In that state, a preliminary drying process is performed.
    Type: Application
    Filed: November 1, 2006
    Publication date: May 28, 2009
    Inventors: Kenji Itaya, Toyokazu Amano, Junichi Takahashi
  • Patent number: 7537798
    Abstract: A deposition mask frame assembly, a method of manufacturing the same, and a method of manufacturing an organic electroluminescent (EL) device using the deposition mask frame assembly are provided. The deposition mask frame assembly includes a mask including a thin plate in which a predetermined pattern of apertures is formed, a frame supporting one surface of the mask so that the mask is tensed, and a cover mask supporting an opposite surface of the mask, wherein the cover mask corresponds to the frame.
    Type: Grant
    Filed: November 21, 2003
    Date of Patent: May 26, 2009
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventor: Koji Shigemura
  • Publication number: 20090129724
    Abstract: An optocoupler including: a substrate comprising a photodetector; a transparent electrically-insulating layer disposed over the photodetector; and an organic electroluminescent device having an organic electroluminescent layer disposed between a first and a second electrode disposed over the transparent electrically-insulating layer; the photodetector arranged to detect light emitted from the organic electroluminescent device; wherein the optocoupler comprises a second current path between the first and second electrodes in addition to a first current path between the first and second electrode which in operation causes the organic electroluminescent layer to emit light.
    Type: Application
    Filed: June 19, 2007
    Publication date: May 21, 2009
    Applicant: CAMBRIDGE DISPLAY TECHNOLOGH LIMITED
    Inventors: Julian Carter, Jonathan Halls
  • Publication number: 20090130297
    Abstract: Disclosed are an aluminum chelate complex capable of stabilizing the degree of vacuum in a film-forming chamber in the vapor deposition step and producing efficiently a high-quality organic EL device which shows excellent reliability and durability in practical use and an organic EL device using the said aluminum chelate complex. The aluminum chelate complex useful as an organic EL material is represented by L1Al(L2)2, contains 0.6 mol % or less of a complex represented by Al(L2)3, and is obtained by reacting an aluminum alkoxide with a quinolinol derivative and then with a phenolic compound and purifying the resulting complex to a high degree. In the formulas, L1 denotes a phenolate ligand and L2 denotes a substituted quinolinolate ligand.
    Type: Application
    Filed: March 14, 2006
    Publication date: May 21, 2009
    Applicants: Nippon Steel Chemical Co.Ltd, Tohoku Pioneer Corporation
    Inventors: Shinji Matsuo, Hideyuki Furumi, Hiroshi Miyazaki, Kazuo Ishii, Toshinao Yuki, Tsuyoshi Naijo
  • Publication number: 20090128028
    Abstract: A light-emitting device is provided, comprising at least one light-emitting diode (100) for emitting light of a first color and a luminescent material (102) arranged on said at least one light-emitting diode to receive at least part of the light emitted by said light-emitting diode. The light-emitting device further comprises a filter (103) arranged to receive light emitted by said light-emitting diode (100) and transmitted through said luminescent material (102) and to absorb light of said first color. The filter comprises a pigment compound distributed in a matrix of silicon and oxygen atoms, in which matrix at least a portion of said silicon atoms are directly bonded to hydrocarbon groups.
    Type: Application
    Filed: April 26, 2007
    Publication date: May 21, 2009
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Volker Dirk Hildenbrand, Virginie Mercier, Rene Jan Hendriks
  • Publication number: 20090121619
    Abstract: Charge transport enhancement layers and structures are provided that may improve the performance of organic devices, specifically organic light emitting devices. A charge transport enhancement layer may include a layer or an inorganic material, metal oxide, halide, and/or alkali disposed between two organic layers, and separated from the cathode by an intervening organic layer. One or more CTELs may be used, such as in an alternating stack of organic and CTEL layers. Surprisingly, it has been found that the use of one or more CTELs arranged in a stack with intervening organic layers may improve the performance of the device even where the layer is not directly adjacent to the cathode.
    Type: Application
    Filed: November 12, 2007
    Publication date: May 14, 2009
    Applicant: UNIVERSAL DISPLAY CORP.
    Inventors: Kamala RAJAN, Ken URBANIK, Ruiqing MA, Brian D'ANDRADE
  • Publication number: 20090121624
    Abstract: Novel combination of materials and device architectures for organic light emitting devices are provided. In some aspects, specific charge carriers and solid state considerations are features that may result in a device having an unexpectedly long lifetime. In some aspects, emitter purity is a feature that may result in devices having unexpectedly long lifetime. In some aspects, structural and optical considerations are features that may result in a device having an unexpectedly long lifetime. In some aspects, an emissive layer including an organic phosphorescent emissive dopant and an organic carbazole host material results in devices having an unexpectedly long lifetime.
    Type: Application
    Filed: November 5, 2008
    Publication date: May 14, 2009
    Applicant: Universal Display Corporation
    Inventors: Brian D'Andrade, Peter B. MacKenzie, Michael S. Weaver, Julia J. Brown
  • Patent number: 7531206
    Abstract: A method of fabricating a flexible emitter using a high molecular compound, including forming an electro-luminescent carbon material on a glass substrate in a predetermined pattern in order to form an emitter pattern thereon, forming an electrode layer of a predetermined height on the emitter pattern and the glass substrate, applying a polymer gel material on the electrode layer, curing the polymer gel material, and separating the flexible emitter from the glass substrate.
    Type: Grant
    Filed: May 31, 2005
    Date of Patent: May 12, 2009
    Assignee: Samsung SDI Co., Ltd.
    Inventors: Hyun-Jung Lee, Jong-Woon Moon, Sang-Hyun Lee
  • Publication number: 20090117261
    Abstract: Droplets of a liquid are ejected through a plurality of nozzles to a plurality of coating regions on a substrate based on nozzle information including the ejection amount of a droplet of the liquid ejected through each nozzle. According to arrangement information for disposing the liquid, a plurality of droplet groups are disposed in each coating region while the plurality of nozzles and the substrate are scanned for relative movement. A calculation is performed according to the nozzle information and the arrangement information. Adjustment amount is calculated so that the assigned adjustment amounts vary from one droplet group to another. Driving signals, which drive selected nozzles, are set so that combinations of the driving signals give coating amounts that have taken the assigned adjustment amounts into account.
    Type: Application
    Filed: September 12, 2008
    Publication date: May 7, 2009
    Applicant: Seiko Epson Corporation
    Inventor: Shinri Sakai
  • Publication number: 20090115310
    Abstract: A coating liquid for hole injection and transport layers improves the injecting property of the coating liquid when it is injected by an injection device and light-emitting uniformity of an organic electroluminescent element, reduces leak current, and improves light-emitting efficiency. The coating liquid for hole injection and transport layers is a coating liquid for hole injection and transport layers in an organic electroluminescent element, wherein the coating liquid for hole injection and transport layers contains poly(3,4-ethylenedioxythiophene), polystyrene sulfonate, and (poly)alkylene glycol alkyl ether.
    Type: Application
    Filed: June 1, 2006
    Publication date: May 7, 2009
    Applicant: SHARP KABUSHIKI KAISHA
    Inventor: Emi Yamamoto
  • Publication number: 20090108747
    Abstract: An organic EL display includes an organic material, a gas barrier layer on the member, and an organic EL unit on the gas barrier layer. The gas barrier layer comprises AlxTiyOz, wherein Al represents aluminum, Ti represents titanium, O represents oxygen, x represents the ratio of atoms of Al, y represents the ratio of atoms of Ti, and z represents the ratio of atoms of O. A Ti-atom ratio of the gas barrier layer is given in the units of atom % and defined by the following equation: Ti-atom ratio={y/(x+y)}·100. The gas barrier layer has a first portion at an interface with the member and a second portion at an interface with the organic EL unit. The Ti-atom ratio of the first portion is 0 atom %. The Ti-atom ratio of the second portion is greater than or equal to 10 atom %.
    Type: Application
    Filed: October 14, 2008
    Publication date: April 30, 2009
    Applicant: DENSO CORPORATION
    Inventors: Taizo Ishida, Kahoru Mori, Ryonosuke Tera, Koji Ino
  • Publication number: 20090110892
    Abstract: Methods and apparatus are disclosed relating to graded-composition barrier coatings comprising first and second materials in first and second zones. The compositions of one or both zones vary substantially continuously across a thickness of the zone in order to achieve improved properties such as barrier, flexibility, adhesion, optics, thickness and tact time. The graded-composition barrier coatings find utility in preventing exposure of devices such as organic electro-luminescent devices (OLEDs) to reactive species found in the environment.
    Type: Application
    Filed: December 1, 2008
    Publication date: April 30, 2009
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Ahmet Gun ERLAT, Anil Duggal, Min Yan, Sheila Tandon, Brian Joseph Scherer
  • Publication number: 20090108739
    Abstract: A method for manufacturing an organic electroluminescence display includes forming a first electrode, forming an organic light emitting medium layer including an organic light emitting layer on the first electrode, the respective organic light emitting medium layers including respective organic light emitting layers having different life-times in light emitting, and forming a second electrode on the organic light emitting medium layer, wherein the organic light emitting layer having a longer life-time is formed earlier.
    Type: Application
    Filed: September 16, 2008
    Publication date: April 30, 2009
    Applicant: Toppan Printing Co.
    Inventors: Takahisa Shimizu, Koji Takeshita, Hironori Kawakami, Nahoko Inokuchi
  • Publication number: 20090110908
    Abstract: A method of manufacturing a dispersion type inorganic electroluminescence device and a dispersion type inorganic electroluminescence device including a light-emitting layer and a dielectric layer, which are integrated, are disclosed. The method is directed to the manufacture of a dispersion type inorganic electroluminescence device, in which phosphor particles are coated with a metal oxide precursor using ultrasonic waves, after which the phosphor particles coated with the metal oxide precursor are disposed between a transparent electrode and an upper electrode, forming a light-emitting layer and a dielectric layer, which are integrated. The dispersion type inorganic electroluminescence device includes a plurality of phosphor particles coated with a metal oxide precursor, disposed between a transparent electrode and an upper electrode, thereby providing a light-emitting layer and a dielectric layer, which are integrated.
    Type: Application
    Filed: May 2, 2008
    Publication date: April 30, 2009
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Shang Hyeun PARK, Ji Beom YOO, Mun Ja KIM, Min Jong BAE, Tae Won JEONG
  • Publication number: 20090102365
    Abstract: A method for manufacturing luminous element particles, comprising: forming a luminous element layer, containing a release layer and luminous organic compound layer, on at least one side of a base material; and micro-fragmenting the luminous element layer after separating the same from the one side of the base material.
    Type: Application
    Filed: September 2, 2008
    Publication date: April 23, 2009
    Applicant: Seiko Epson Corporation
    Inventors: Kiyohiko Takemoto, Miharu Kanaya
  • Publication number: 20090102358
    Abstract: An organic EL element (Al) includes an anode (2) and a cathode (4) which are arranged opposite to each other, and an organic layer (3) intervening between the anode (2) and the cathode (4) and including a light emitting layer (3b). The cathode (4) is made of MgAg alloy and has a thickness of not more than 200 ?. Preferably, the thickness of the cathode (4) is in the range of 40 to 100 ?.
    Type: Application
    Filed: June 6, 2006
    Publication date: April 23, 2009
    Applicant: ROHM CO., LTD.
    Inventors: Noriyuki Shimoji, Masato Moriwake, Takaaki Fuchikami, Hiroki Kato
  • Publication number: 20090104403
    Abstract: To provide an evaporation donor substrate which is used for deposition by an evaporation method and which allows reduction in manufacturing cost and high uniformity of a film which is deposited. In addition, to provide a method for manufacturing a light-emitting device using the evaporation donor substrate. The evaporation donor substrate includes a reflective layer having an opening which is formed over a substrate, a heat insulating layer having a light-transmitting property which is formed over the substrate and the reflective layer, a light absorption layer which is formed over the heat insulating layer; and a material layer which is formed over the light absorption layer.
    Type: Application
    Filed: October 21, 2008
    Publication date: April 23, 2009
    Inventors: Tomoya AOYAMA, Yosuke SATO, Kohei YOKOYAMA, Rena TAKAHASHI
  • Publication number: 20090096351
    Abstract: Reflective electronic layers are provided for electronic devices, such as electroluminescent lamps, photovoltaic devices, and light emitting diodes. Processes for forming such reflective layers are also provided. The reflective layers comprise metallic particles that optionally are coated.
    Type: Application
    Filed: October 12, 2007
    Publication date: April 16, 2009
    Applicant: Cabot Corporation
    Inventors: Mark J. Hampden-smith, Mark H. Kowalski
  • Patent number: 7517550
    Abstract: A picture element for an electro-luminescent display comprises a substrate, a first intermediate structure disposed above a first area of the substrate, at least one first color type electro-luminescent device disposed above the first intermediate structure, a second intermediate structure disposed above a second area of the substrate, and at least one second color type electro-luminescent device disposed above the second intermediate structure. The second intermediate structure is different from the first intermediate structure.
    Type: Grant
    Filed: November 13, 2007
    Date of Patent: April 14, 2009
    Assignee: Au Optronics Corporation
    Inventors: Wei-Pang Huang, Yi-Fan Wang
  • Patent number: 7517549
    Abstract: An organic EL function layer is formed in the following manner. Namely, relative scanning is carried out between a substrate and a function liquid droplet ejection head having introduced therein a light function material is selectively ejected toward the emitting function material. The light emitting substrate such that an organic EL function layer is formed on a multiplicity of pixel regions on the substrate. The work of ejecting the light emitting function material is carried out in an atmosphere of an inert gas.
    Type: Grant
    Filed: January 21, 2003
    Date of Patent: April 14, 2009
    Assignee: Seiko Epson Corporation
    Inventor: Takayuki Hayashi
  • Publication number: 20090092825
    Abstract: A extreme low resistivity light attenuation anti-reflection coating structure includes a substrate, a coating module, and a composed protection coating layer. The coating module is formed on a front surface of the substrate. The coating module is composed of a plurality of Ti-based oxide coating layers and a plurality of metal coating layers that are alternately stacked with each other. The composed protection coating layer is formed on the coating module.
    Type: Application
    Filed: October 5, 2007
    Publication date: April 9, 2009
    Inventors: Cheng-Chieh Chang, Shiu-Feng Liu, Pi-Jui Kuo
  • Publication number: 20090091918
    Abstract: Disclosed is an organic electro-luminescence element including an anode layer, an organic electro-luminescence compound layer containing a high molecular weight light-emitting compound, and a cathode layer, laminated in this order, wherein said cathode layer includes: (i) a metal-doped electron injection layer in contact with the organic electro-luminescence compound layer and (ii) a transparent, non-metallic electron-injecting material in contact with the metal-doped electron injection layer; and wherein said metal-doped electron injection layer is selected from the group consisting of a material functioning as a hole-blocking material, a material functioning as an exciton-blocking material and a material functioning as a blocking material for both holes and excitons.
    Type: Application
    Filed: August 23, 2006
    Publication date: April 9, 2009
    Applicant: SHOWA DENKO K.K.
    Inventor: Tamami Koyama
  • Publication number: 20090092743
    Abstract: A method of producing an organic electroluminescent element may include forming a transparent electrode as an anode on a transparent substrate; forming a light emission layer on the transparent substrate having thereon the anode; and forming a cathode on the substrate having thereon the anode and the light emission layer. The light emission layer may be formed by a method including arranging at least one vaporization crucible E evaporating a light emission dopant and at least one vaporization crucible I evaporating a host material and an intermediate layer forming material; and moving the substrate having thereon the anode over the vaporization crucibles E and I to form a light emission layer.
    Type: Application
    Filed: December 15, 2008
    Publication date: April 9, 2009
    Applicant: KONICA MINOLTA HOLDINGS, INC.
    Inventors: Yoshiyuki Suzuri, Hiroshi Kita
  • Patent number: 7514115
    Abstract: Aspects of the invention can provide a method of fabricating an organometallic compound film capable, by stably forming a film with the organometallic compound, of increasing bonding forces of junction interfaces and of realizing a hyper thin film, the organometallic compound film, and an organoelectronic device (e.g., an organic electroluminescence device, an organic solar battery, or an organic thin film transistor) and an electronic device equipped with the organometallic compound film are provided. The method of fabricating a thin film of an organometallic compound on a substrate, can include the step of forming an organic material by a liquid phase process and the step of forming metal by a vapor phase process to form a thin film of an organometallic compound composed of the organic material and the metal.
    Type: Grant
    Filed: August 23, 2004
    Date of Patent: April 7, 2009
    Assignee: Seiko Epson Corporation
    Inventors: Takeshi Takashima, Katsuyuki Morii, Hirofumi Hokari, Rie Makiura
  • Publication number: 20090087546
    Abstract: A process for producing an electroluminescent device comprises the steps of preparing a substrate 1, forming a first electrode layer 2 on the substrate 1, and forming a luminescent layer 3 on the first electrode layer 2 by applying a luminescent-layer-forming coating liquid containing quantum dots 22, each quantum dot 22 being surrounded by organic ligands 21. After the luminescent-layer-forming step, the step of removing the organic ligands 21 from the quantum dots 22 by subjecting the luminescent layer 3 to UV-ozone cleaning is performed. After the organic-ligand-removing step, the step of forming a second electrode layer 4 on the luminescent layer 3 in which the organic ligands 21 have been removed from the quantum dots 22 is performed.
    Type: Application
    Filed: September 23, 2008
    Publication date: April 2, 2009
    Applicant: DAI NIPPON PRINTING CO., LTD.
    Inventors: Yasuhiro Ilzumi, Masaya Shimogawara
  • Publication number: 20090085473
    Abstract: A primary object of this invention is to provide a manufacturing method for an EL element, which can facilitate patterning for a luminescent layer containing quantum dots. This method includes: a wettability-changing-layer-forming step for forming a wettability changing layer containing a photocatalyst, on a substrate having a first electrode layer formed thereon, wherein wettability of the wettability-changing layer is changed by an effect of the photocatalyst associated with irradiation with energy; and a wettability-changing-pattern forming step for forming a wettability changing pattern composed of lyophilic regions and liquid-repellent regions, on a surface of the wettability changing layer, by irradiating the wettability changing layer with energy in a patterning manner. Additionally, in this method, a luminescent layer is formed onto each lyophilic region, by coating a luminescent-layer-forming coating liquid containing the quantum dots, around each of which ligands are attached.
    Type: Application
    Filed: September 22, 2008
    Publication date: April 2, 2009
    Applicant: DAI NIPPON PRINTING CO., LTD.
    Inventors: Yasuhiro Ilzumi, Masaya Shimogawara
  • Publication number: 20090087545
    Abstract: Provided are an evaporating jig by which a thin film, especially an organic EL film, can be uniformly formed over a long time, and a film forming apparatus including the evaporating jig. The evaporating jig is provided with an evaporating pan, having a bottom plane and side planes arranged to stand from the bottom plane, for defining a material containing space opened inside the side planes; and partitioning plates for partitioning the material containing space into a plurality of partial spaces. The partitioning plates are provided with locking pieces having a height which permits the partial spaces to be continuous on a bottom plane side of the evaporating pan.
    Type: Application
    Filed: September 19, 2006
    Publication date: April 2, 2009
    Inventors: Tadahiro Ohmi, Takaaki Matsuoka, Shozo Nakayama, Hironori Ito
  • Patent number: 7510455
    Abstract: A display device having a plurality of pixels and which realizes a color display with emitted light of at least two wavelengths wherein each pixel has a microresonator structure between a lower reflective film formed on a side near a substrate and an upper reflective film formed above the lower reflective film with an organic light emitting element layer therebetween. The lower reflective film is made of a metal thin film and a conductive resonator spacer layer which functions as a first electrode is provided between the lower reflective film and the organic light emitting element layer. A thickness of the conductive resonator spacer layer is changed by changing a number of layers or a number of remaining layers of transparent conductive metal oxide layers made of ITO corresponding to pixels of different light emission wavelengths.
    Type: Grant
    Filed: December 22, 2004
    Date of Patent: March 31, 2009
    Assignee: Sanyo Electric Co., Ltd.
    Inventor: Koji Suzuki
  • Publication number: 20090081358
    Abstract: A light-emitting device is provided that is excellent in light emission efficiency and stability. The light-emitting device has a first part of a first dielectric constant, a second part of a second dielectric constant and a third part of a third dielectric constant, and has a triple junction where they are in contact with one another. Moreover, a first and a second electrode are provided for applying a voltage for controlling an electric field at the triple junction and in the vicinity thereof. Further, at least one of the first, the second and the third parts is a constituted by light-emitting material, and the triple junction forms a closed line.
    Type: Application
    Filed: November 25, 2008
    Publication date: March 26, 2009
    Applicant: Canon Kabushiki Kaisha
    Inventors: Tatsuya Iwasaki, Tohru Den, Katsuya Oikawa
  • Publication number: 20090081356
    Abstract: A process is disclosed for making a thin film encapsulation package for an OLED device by depositing a thin film material on an OLED device to be encapsulated, comprising simultaneously directing a series of gas flows along substantially parallel elongated output openings, wherein the series of gas flows comprises, in order, at least a first reactive gaseous material, an inert purge gas, and a second reactive gaseous material, optionally repeated a plurality of times, wherein the first reactive gaseous material is capable of reacting with a substrate surface treated with the second reactive gaseous material to form an encapsulating thin film, wherein the first reactive gaseous material is a volatile organo-metal precursor compound. The process is carried out substantially at or above atmospheric pressure, and the temperature of the substrate during deposition is under 250° C.
    Type: Application
    Filed: September 26, 2007
    Publication date: March 26, 2009
    Inventors: Elena A. Fedorovskaya, Michael L. Boroson, David H. Levy, John A. Agostinelli
  • Publication number: 20090081357
    Abstract: Disclosed is an organic EL device having high external quantum efficiency, long emission life and low driving voltage. Also disclosed are an illuminating device and a display. Specifically disclosed is an organic electroluminescent device comprising, on a supporting substrate, at least an anode, a cathode and an organic compound layer which is arranged between the anode and the cathode and includes at least one light-emitting layer. This electroluminescent device is characterized in that the anode, cathode and organic compound layer are respectively formed by coating.
    Type: Application
    Filed: February 15, 2006
    Publication date: March 26, 2009
    Applicant: KONICA MINOLTA HOLDINGS, INC.
    Inventors: Hideo Taka, Hiroshi Kita, Hiroaki Ando
  • Publication number: 20090072717
    Abstract: An electro-optic device (100) has a first electrode (102), a second electrode (104), and an active polymer layer (106) disposed between the first and second electrodes. The active polymer layer is a blend of a high band gap material with a low band gap material. An electro-optic device has an anode, cathode spaced apart from the anode, and an active polymer layer (106) disposed between the cathode and anode. The cathode is constructed to provide both electron injection and hole blocking. A method of manufacturing an electrode-optic device include providing a substrate, forming a layer of Cs2CO3 (112) on the active polymer layer, and depositing a layer of metal (114) onto the layer of Cs2CO3 (112). The layer of Cs2CO3 (112) on the active polymer layer provides electron injection and hole blocking for the electro-opti device (100).
    Type: Application
    Filed: April 21, 2006
    Publication date: March 19, 2009
    Applicant: The Regents of the University of California
    Inventors: Yang Yang, Jinsong Huang, Qianfei Xu
  • Publication number: 20090074992
    Abstract: Provided are a method of preparing a nanowire grid polarizer, and a nanowire grid polarizer prepared using the same. The method includes: mixing a surfactant and a silica precursor to prepare a mesoporous film composition; coating the mesoporous film composition on a substrate; aging the coated product to form a silica template composite; removing the surfactant inside the silica template composite to prepare a mesoporous material having channels; and filling the channels of the mesoporous material with metal. The method is suitable for the formation of a nanowire having a stable structure, mass production, and large-area production.
    Type: Application
    Filed: March 28, 2008
    Publication date: March 19, 2009
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Su-mi LEE, Dong-mok WHANG, Moon-gyu LEE, Yoon-sun CHOI, Sun-hwak WOO
  • Publication number: 20090072723
    Abstract: Provided are an organic electroluminescent device having high efficiency and a long lifetime, and a production method of the device. The organic electroluminescent device includes an anode, a cathode, and a stacked body interposed between the anode and the cathode and formed by sequentially stacking at least an inorganic compound layer and an organic emission layer, in which the inorganic compound layer has a hole-transporting ability and a work function of the inorganic compound layer changes continuously in a film thickness direction of the inorganic compound layer.
    Type: Application
    Filed: September 3, 2008
    Publication date: March 19, 2009
    Applicant: CANON KABUSHIKI KAISHA
    Inventor: Shunsuke Shioya
  • Patent number: 7504770
    Abstract: An organic light emitting diode (OLED) device includes an anode layer upon a DBR (Distributed Bragg Reflector) stack such that the anode layer is modified by creating lens-like features on its surface. The OLED device also includes a planarizing layer on said anode layer, said planarizing layer filling in said lens-like features, said planarizing layer providing a flat uniform surface for the deposition of other layers thereupon.
    Type: Grant
    Filed: February 9, 2005
    Date of Patent: March 17, 2009
    Assignee: Osram Opto Semiconductors GmbH
    Inventor: Vi-En Choong
  • Publication number: 20090066237
    Abstract: An organic electroluminescent device is provided with a substrate, and a lower electrode, a luminescence function layer including an organic light-emitting layer, and an upper electrode stacked in this order on the substrate to emit light, which has been generated in said organic light-emitting layer, out of said upper electrode. The lower electrode includes a reflective material layer comprised essentially of metal, an oxide film provided on a surface of said reflective material layer, and a thin metal film provided over the oxide film.
    Type: Application
    Filed: September 9, 2008
    Publication date: March 12, 2009
    Applicant: SONY CORPORATION
    Inventors: Emiko Kambe, Tadahiko Yoshinaga, Yasunori Kijima, Mitsuhiro Kashiwabara, Hirokazu Yamada
  • Publication number: 20090066234
    Abstract: A light emitting composition includes a light-emitting iridium-functionalized nanoparticle, such as an organic-inorganic light-emitting iridium-functionalized nanoparticle. A light emitting device includes an anode, a cathode, and a layer containing such a light-emitting composition. In an embodiment, the light emitting device can emit white light.
    Type: Application
    Filed: July 2, 2008
    Publication date: March 12, 2009
    Inventors: HYUN SIK CHAE, YUTAKA OHMORI, JESSE FROEHLICH, SHENG LI, AMANE MOCHIZUKI, GHASSAN JABBOUR
  • Publication number: 20090066223
    Abstract: A composition for an organic electroluminescent device is a composition for forming an organic light emitting layer of an organic electroluminescent device by wet coating process. The composition contains a phosphorescent material, a charge transport material, and a solvent, in which the phosphorescent material and the charge transport material are each an unpolymerized organic compound, and the first oxidation potential of the phosphorescent material ED+, the first reduction potential of the phosphorescent material ED?, the first oxidation potential of the charge transporting material ET+, and the first reduction potential of the charge transporting material ET? satisfy the following condition: ET?+0.1?ED?<ET+?ED+?0.1 or ED?+0.1?ET?<ED+?ET+0.1.
    Type: Application
    Filed: February 14, 2006
    Publication date: March 12, 2009
    Applicant: Mitsubishi Chemical Corporation
    Inventors: Masayoshi Yabe, Tomoyuki Ogata, Hideki Sato, Koichiro Iida, Asato Tanaka, Mitsuru Tanamura, Yuichiro Kawamura, Hironori Ishikawa, Kazuki Okabe
  • Publication number: 20090058266
    Abstract: A method is provided for fabricating a semiconductor nanoparticle embedded Si insulating film for short wavelength luminescence applications. The method provides a bottom electrode, and deposits a semiconductor nanoparticle embedded Si insulating film, including the element of N, O, or C, overlying the bottom electrode. After annealing, a semiconductor nanoparticle embedded Si insulating film has a peak photoluminescence (PL) at a wavelength in the range of 475 to 750 nanometers.
    Type: Application
    Filed: November 10, 2008
    Publication date: March 5, 2009
    Inventors: Pooran Chandra Joshi, Hao Zhang, Jiandong Huang, Apostolos T. Voutsas
  • Publication number: 20090061076
    Abstract: An integrated test element (110) is proposed for detecting for detecting at least one analyte in a sample (142), in particular in a liquid sample (142). The integrated test element (110) has a carrier element (112), with an application face (114) on which at least one organic electroluminescent component (126) is applied. Furthermore, at least one indicator substance (136) is applied on the application face (114), which indicator substance (136) alters at least one optical characteristic, in particular an emission characteristic (e.g. a fluorescence characteristic), when it comes into contact with the at least one analyte. Furthermore, the integrated test element (110) has at least one photodetector element (116).
    Type: Application
    Filed: August 29, 2008
    Publication date: March 5, 2009
    Inventors: Bernd Rosicke, Kai Hebestreit, Claudia Gassler-Dietsche, Frederic Wehowski
  • Patent number: 7498737
    Abstract: The invention discloses a method for manufacturing an organic electro-luminescent display device, the method comprising the steps of: providing a light-permeable substrate; arranging a plurality of transparent electrodes in a stripe-like manner on the light-permeable substrate, the transparent electrodes being made of a light-permeable conductive film; forming at least one organic layer on the subassembly, the at least one organic layer being made of an organic electro-luminescent medium so that the at least one organic layer covers the electrodes; forming a conductive film all over the at least one organic layer; and removing at least one portion of the conductive film so as to create stripe-like electrodes being electrical isolated to each other and extending in a direction perpendicular to the transparent electrodes using a radiation method.
    Type: Grant
    Filed: August 9, 2004
    Date of Patent: March 3, 2009
    Assignee: Osram Opto Semiconductors GmbH
    Inventors: Ewald Karl Michael Guenther, Karsten Heuser, Georg Wittmann
  • Patent number: 7498053
    Abstract: Provided is an inorganic thin film electroluminescent device including a lower electrode, a lower insulating layer, a phosphor, an upper insulating layer, and an upper electrode, and the method for manufacturing the same, whereby it is possible to obtain the inorganic thin film electroluminescent device capable of realizing high brightness, excellent luminescence efficiency, and low breakdown field.
    Type: Grant
    Filed: May 13, 2004
    Date of Patent: March 3, 2009
    Assignee: Electronics and Telecommunications Research Institute
    Inventors: Jung Wook Lim, Sun Jin Yun, Jin Ho Lee