Electroluminescent Lamp Patents (Class 427/66)
  • Patent number: 7662011
    Abstract: A structure of a display device in which water is prevented from passing through the side faces of a display device using an organic light-emitting element and a gap between substrates is made uniform. On the first substrate having the light-emitting element provided thereon, the thicknesses of the layers deposited in the peripheral area, the pixel portion and the driving circuit portion are equalized with each other. Furthermore, an adhesive is provided as thin as possible in the peripheral area of the first substrate so as to bond a second substrate to the first substrate. As a result, the distance between the first substrate and the second substrate can be made uniform throughout the peripheral area of the first substrate, the pixel portion and the driving circuit. Moreover, since a protective film overlying the organic light-emitting element is also provided on the side faces of the second insulating film, water is prevented from entering the display device through its side faces.
    Type: Grant
    Filed: December 27, 2005
    Date of Patent: February 16, 2010
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Jun Koyama, Takeshi Nishi, Rumo Satake
  • Patent number: 7662425
    Abstract: A method of manufacturing an organic EL element according to the present invention comprises the steps of forming pixel electrodes (801), (802), (803) on a transparent substrate (804) and forming on the pixel electrodes by patterning luminescent layers (806), (807), (808) made of an organic compound by means of an ink-jet method. According to this method, it is possible to carry out a high precise patterning easily and in a short time, thereby enabling to carry out optimization for a film design and luminescent characteristic easily as well as making it easy to adjust a luminous efficiency.
    Type: Grant
    Filed: October 4, 2004
    Date of Patent: February 16, 2010
    Assignee: Seiko Epson Corporation
    Inventors: Satoru Miyashita, Hiroshi Kiguchi, Tatsuya Shimoda, Sadao Kanbe
  • Publication number: 20100033082
    Abstract: A method for forming multi-emissive phosphorescent layers for a phosphorescent OLED comprises coating a first phosphorescent material from a first solvent onto a first electrode and removing the first solvent to form a first emissive layer; and coating a second phosphorescent material from a second solvent onto the first emissive layer and removing the second solvent to form a second emissive layer, wherein the first and second emissive layers are not cured after coating, and wherein the first emissive layer has negligible solubility in the second solvent.
    Type: Application
    Filed: August 7, 2008
    Publication date: February 11, 2010
    Applicant: GENERAL ELECTRIC COMPANY
    Inventors: Jie Liu, Kelly Scott Chichak, Anil Raj Duggal, Qing Ye
  • Publication number: 20100035188
    Abstract: A manufacturing method of an organic electro-luminescence device is disclosed. The manufacturing method of an organic electro-luminescence device includes sequential steps of: providing a substrate first; forming a first electrode layer on the substrate; forming an insulating layer on the substrate, wherein the insulating layer includes a plurality of openings for exposing the first layer; forming a conducting layer on the sidewall of the insulating layer and on the first electrode layer in the openings; forming a light-emitting layer on the conducting layer in the openings; and finally forming a second electrode layer on the light-emitting layer. The organic electro-luminescence device formed by the above manufacturing method is capable of providing the light-emitting layer with a uniform thickness and therefore raising of yield of the fabricating process and improving of the displaying quality of the organic electro-luminescence device.
    Type: Application
    Filed: October 15, 2009
    Publication date: February 11, 2010
    Applicant: CHUNGHWA PICTURE TUBES, LTD.
    Inventors: Pei-Yu Liu, Huai-An Li, Yu-Cheng Lo, Jiun-Ming Wang
  • Patent number: 7659543
    Abstract: An organic light emitting display including a pixel electrode arranged on a substrate, an organic layer arranged on the pixel electrode and including at least a hole injection layer, a hole acceleration layer, a hole transport layer, and an emission layer, and an opposite electrode arranged on the organic layer. The hole acceleration layer is formed of a material having a hole mobility that is higher than that of the hole injection layer.
    Type: Grant
    Filed: November 16, 2005
    Date of Patent: February 9, 2010
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Seoung-Yoon Ryu, Ja-Hyun Im, Kwan-Hee Lee
  • Patent number: 7659011
    Abstract: An organic EL device includes a cathode, organic luminescent layers, and an electron-injection layer disposed between the cathode and the luminescent layers. The electron-injection layer contains an organic metal complex having a central atom of the same metal element as a constituent element of the cathode. A larger number of ligands than the valence of the central atom of the complex are coordinated to the central atom.
    Type: Grant
    Filed: August 6, 2004
    Date of Patent: February 9, 2010
    Assignee: Seiko Epson Corporation
    Inventor: Shuichi Takei
  • Publication number: 20100026173
    Abstract: A method of depositing a light emitting layer of an organic EL device in which a subpixel combination having a plurality of different colors is set as a unit pixel, a plurality of subpixels are sequentially and alternately arranged in a row direction, and a plurality of subpixels of the same color are arranged in a column direction, includes first depositing the light emitting layer using a mask having a plurality of opening portions corresponding to positions of the subpixels of the same color arranged in any of an odd numbered row and an even-numbered column of the subpixels, and second depositing the light emitting layer by moving the mask to prevent the light emitting layer from being deposited at a subpixel adjacent to the subpixel where the light emitting layer is deposited during the first deposition operation, using the same opening portion of the mask used for the first deposition operation of the light emitting layer.
    Type: Application
    Filed: July 23, 2009
    Publication date: February 4, 2010
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Za-Il Lhee, Sang-Mok Hong, Keun-Soo Lee
  • Publication number: 20100026178
    Abstract: An organic light emitting display according to an exemplary embodiment of the present invention includes a transistor arranged on an insulating substrate, a pixel electrode connected to the transistor and including a reflective film, an optical path controller arranged on the pixel electrode, an auxiliary electrode arranged on the pixel electrode and the optical path controller, an organic light emitting member arranged on the organic light emitting member, and a common electrode arranged on the organic light emitting member, wherein the optical path controller has a lower light absorption coefficient than the auxiliary electrode.
    Type: Application
    Filed: December 8, 2008
    Publication date: February 4, 2010
    Applicant: SAMSUNG ELECTRONICS CO., LTD.
    Inventors: Young-In HWANG, Baek-Woon Lee, Hae-Yeon Lee
  • Publication number: 20100019654
    Abstract: An organic electroluminescence device includes a substrate, a plurality of light-emitting elements arranged on the substrate, each including a pair of electrodes and an organic light-emitting layer disposed between the electrodes, an organic buffer layer covering the plurality of light-emitting elements, and a gas barrier layer covering the organic buffer layer. The gas barrier layer has a structure wherein first inorganic films and second inorganic films are alternately stacked. The first inorganic films contain a silicon compound containing nitrogen, the second inorganic films contain an oxide of the formation material of the first inorganic films and each have a thickness smaller than that of each first inorganic film. The numbers of the first inorganic films and the second inorganic films are each at least two.
    Type: Application
    Filed: May 14, 2009
    Publication date: January 28, 2010
    Applicant: SEIKO EPSON CORPORATION
    Inventor: Kenji HAYASHI
  • Publication number: 20100021623
    Abstract: Mixtures are provided of lithium salts with reducing agents for lithium evaporation. The mixtures may be particularly used in the manufacture of electroluminescent organic displays. Lithium dispensers based on the use of these mixtures are also provided.
    Type: Application
    Filed: October 2, 2009
    Publication date: January 28, 2010
    Applicant: SAES GETTERS S.P.A.
    Inventors: Lorena CATTANEO, Simona PIROLA, Chiharu MAEDA, Antonio BONUCCI
  • Publication number: 20100021622
    Abstract: Apparatus and method for forming multilayer polymer thin film. The method uses a solution container with a gap to prevent the huge amount of solution from directly falling on the first layer. Then the wet film is formed by moving the container with the thin film thickness is decided by the distance between the gap and the substrate. The wet film is dried in a very short time by the heater therefore there is no time for the second solvent to dissolve the first layer. The method can effectively achieve the large-area and multilayer structure in organic devices through solution processing.
    Type: Application
    Filed: July 24, 2008
    Publication date: January 28, 2010
    Applicant: National Chiao Tung University
    Inventors: Hsin-Fei Meng, Sheng-Fu Horng, Hsin-Rong Tseng, Chi-Shen Tuan
  • Publication number: 20100019656
    Abstract: A full-color active matrix organic light emitting display including a transparent substrate, a color filter positioned on an upper surface of the substrate, a spacer layer formed on the upper surface of the color filter, a metal oxide thin film transistor backpanel formed on the spacer layer and defining an array of pixels, and an array of single color, organic light emitting devices formed on the backpanel and positioned to emit light downwardly through the backpanel, the spacer layer, the color filter, and the substrate in a full-color display.
    Type: Application
    Filed: July 23, 2008
    Publication date: January 28, 2010
    Inventors: Gang Yu, Chan-Long Shieh
  • Patent number: 7651722
    Abstract: An apparatus for manufacturing an organic electroluminescence display having an alignment chamber for aligning a mask having openings corresponding to a predetermined pattern with a substrate on which a first electrode layer is formed and detachably attaching the mask and the substrate. The apparatus further including a number of vacuum processing chambers for sequentially forming a number of organic material layers on the substrate attached with the mask. The apparatus also including a transfer robot for transferring the attached mask and substrate to one of the number of vacuum processing chambers and sequentially transferring it between the number of the vacuum processing chambers.
    Type: Grant
    Filed: May 21, 2002
    Date of Patent: January 26, 2010
    Assignee: Sony Corporation
    Inventors: Takao Mori, Masaru Yamaguchi, Isao Kamiyama
  • Publication number: 20100013385
    Abstract: A display device free from a deterioration in luminescence efficiency is provided. In the display device of the present invention, since an inorganic film is formed after concave parts in which luminescence portions are positioned are filled with a filling film, no crack is formed in the inorganic film. Since the inorganic film is made of a material having high gas tightness and heat conductivity (such as, diamond-like carbon or AlN), water and oxygen will hardly penetrate the luminescence portions, and heat of the luminescence portions will be conducted to the inorganic film, so that the luminescence portions do not reach high temperatures. Further, since a gap between first and second panels is filled with a resin film, the atmosphere does not enter from the outside. Because the luminescence portions are free from damage from water, oxygen and heat, the display device of the present invention has a prolonged life.
    Type: Application
    Filed: August 20, 2009
    Publication date: January 21, 2010
    Applicant: ULVAC, INC.
    Inventor: Toshio NEGISHI
  • Patent number: 7648729
    Abstract: This mask includes: a substrate in which an aperture is formed; a mask member which, along with being formed with a plurality of through holes, is joined to the substrate in correspondence to the aperture; and spacers which hold the substrate and the mask member with a predetermined gap between them.
    Type: Grant
    Filed: February 23, 2004
    Date of Patent: January 19, 2010
    Assignee: Seiko Epson Corporation
    Inventor: Makoto Nakadate
  • Publication number: 20100009067
    Abstract: A process for producing a laminate comprises the steps of: coating a water solution containing water and a water-soluble liquid crystal compound on a surface of a substrate to form a coating film; and drying the coating film by placing the coating film in an atmosphere having 70% RH or higher to less than 100% RH to more than 10% by weight of the solvent in the coating film; wherein an optical anisotropic layer is formed on the surface of the substrate by exerting a regulating force on the water-soluble liquid crystal compound to orient the water-soluble liquid crystal compound in the drying process.
    Type: Application
    Filed: July 1, 2008
    Publication date: January 14, 2010
    Applicant: NITTO DENKO CORPORATION
    Inventors: Tetsuo Inoue, Toru Umemoto, Toshimasa Nishimori
  • Publication number: 20100009068
    Abstract: A microdeposition system microdeposits droplets of fluid material to define a feature pattern on a substrate. The feature pattern for the substrate is defined. A mask is created for the feature pattern that reduces a density of defects that occur due to a malfunctioning nozzle of the microdeposition head. The droplets of fluid material are microdeposited onto the substrate based on the mask to define sub-features of the feature pattern. One of the nozzles of the microdeposition head is assigned to each of the sub-features in the feature pattern. The nozzles may be assigned randomly or using other functions. The assigned nozzles in the mask are assigned to one of a plurality of passes of the microdeposition head.
    Type: Application
    Filed: September 18, 2009
    Publication date: January 14, 2010
    Applicant: ULVAC, INC.
    Inventors: Charles O. EDWARDS, David ALBERTALLI
  • Patent number: 7645478
    Abstract: Methods of forming displays are described. The displays have zinc oxide row and column drivers integrated onto the same display substrate as zinc oxide pixel transistors and organic light emitting diodes. The organic light emitting diodes are prepared, at least in part, using a thermal transfer process from a donor sheet.
    Type: Grant
    Filed: March 31, 2005
    Date of Patent: January 12, 2010
    Assignee: 3M Innovative Properties Company
    Inventors: Steven D. Thelss, Paul F. Baude, Michael A. Haase, Eric W. Hemmesch, Yaoqi J. Liu, Sergey S. Lamansky
  • Patent number: 7641533
    Abstract: A transparent cathode electrode technology for an electroluminescent display device having a top emission structure, provides a top emission type electroluminescent display device and a method to manufacture the same. Oxidation of a substrate film can be reduced or prevented during the film formation of a metal oxide. Electronic equipment including this display device is also provided. A first electrode, a function layer including a luminescent layer, and a transparent second electrode made of a metal oxide are laminated on the substrate in that order from the lower surface. At this time, the oxygen concentration in the second electrode is made to vary in the film thickness direction, and the oxygen concentration in the vicinity of the interface between the second electrode and the function layer is made lower than the average oxygen concentration in the second electrode.
    Type: Grant
    Filed: August 9, 2007
    Date of Patent: January 5, 2010
    Assignee: Seiko Epson Corporation
    Inventor: Hidekazu Kobayashi
  • Publication number: 20090317539
    Abstract: It is an object to provide a composition in which an anthracene derivative is dissolved and a technique in which a thin film that has a favorable film quality is formed by a wet process using the composition. In addition, it is another object to manufacture a highly reliable light-emitting element using the composition at low cost with high productivity. A composition having a solvent and an anthracene derivative having one anthracene structure and one carbazolyl group which is bonded to the anthracene structure directly or through a phenyl group is formed. A thin film with a favorable film quality can be formed by a wet process using the composition. Accordingly, a highly reliable light-emitting element can be manufactured using such a thin film.
    Type: Application
    Filed: May 15, 2009
    Publication date: December 24, 2009
    Inventors: Satoko Shitagaki, Satoshi Seo, Tsunenori Suzuki, Sachiko Kawakami
  • Publication number: 20090315023
    Abstract: A composition for use in the manufacture of an opto-electrical device, the composition comprising: a conductive or semi-conductive organic material; a solvent; and a first additive, wherein the first additive is an alcohol ether having a boiling point lower than 170° C.
    Type: Application
    Filed: August 1, 2007
    Publication date: December 24, 2009
    Applicant: CAMBRIDGE DISPLAY TECHNOLOGY LIMITED
    Inventors: Paul Wallace, Simon Goddard
  • Patent number: 7632164
    Abstract: An apparatus and a corresponding process for producing an organic EL display device comprising a first unit for carrying a supporting substrate in, a second unit for heating at least the supporting substrate before forming an organic luminescence medium, thereby performing a dehydration treatment, a third unit for forming the organic luminescence medium and an upper element, and a fourth unit for sealing the periphery of the apparatus with a sealing member, wherein the first unit is arranged between the second unit and the third unit, a first carrying device is set up in the first unit, and a second carrying device is arranged between the third unit and the fourth unit.
    Type: Grant
    Filed: March 9, 2007
    Date of Patent: December 15, 2009
    Assignee: Panasonic Corporation
    Inventors: Toshio Sakai, Mitsuru Eida, Hiroshi Tokailin
  • Patent number: 7632704
    Abstract: Provided are a method of effectively manufacturing an organic EL element with high quality and an apparatus therefor. A surface to be processed of a substrate in an upper electrode forming step is held downward, and the surface to be processed of the substrate in a passivation layer forming step is held upward.
    Type: Grant
    Filed: April 14, 2005
    Date of Patent: December 15, 2009
    Assignee: Canon Kabushiki Kaisha
    Inventors: Hiroshi Sugai, Masahiro Kanai
  • Publication number: 20090302759
    Abstract: An organic light emitting diode and a method of fabricating the same. The organic light emitting diode includes a substrate, a first electrode on the substrate, emission layers on the first electrode including red, green and blue pixel regions, and a second electrode on the emission layers. The organic light emitting diode further includes an electron transport layer on the emission layers, and an intermediate layer formed by co-depositing metal quinolate and an organic material between at least one of the emission layers and the electron transport layer. The intermediate layer inhibits hole transport and increases a life span of the red pixel region.
    Type: Application
    Filed: June 5, 2009
    Publication date: December 10, 2009
    Inventors: Sung-Jin Choi, Ok-Keun Song, Hye-In Jeong, Doo-Hwan Kim, Min-Woo Lee, Jae-Goo Lee
  • Publication number: 20090304909
    Abstract: A method for forming an organic light active device, including providing a first electrode and a second electrode defining a gap there between. A plurality of first particles comprised of a hole transport material and a plurality of second particles comprised of an electron transport material is also provided. The method includes bringing respective ones of the first particles and the second particles together to form organic light active particulate having a hole transport layer and an electron transport layer engaging one another and forming a heterojunction there between. The method also includes disposing within the gap the organic light active particulate dispersed within a carrier.
    Type: Application
    Filed: May 26, 2009
    Publication date: December 10, 2009
    Inventor: John J. Daniels
  • Patent number: 7629018
    Abstract: A method of manufacturing a light emitting device including a light emitting element is provided, which includes a step of forming a first electrode, a step of forming an insulating layer including an opening over the first electrode, a step of forming a layer containing an organic compound on the first electrode and the insulating layer, a step of forming a second electrode on the layer containing the organic compound, a step of etching the layer containing the organic compound by plasma etching, and a step of connecting the second electrode and a wiring electrically connected to a terminal portion to each other through an adhesive containing a conductive particle.
    Type: Grant
    Filed: February 28, 2007
    Date of Patent: December 8, 2009
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Masakazu Murakami, Satoshi Seo
  • Patent number: 7629026
    Abstract: Methods and apparatuses are provided for assembling a structure on a support having a pattern of binding sites. In accordance with the method, a first fluid is provided on the surface of the support with the first fluid being of a type that that increases viscosity when heated, the first fluid having first micro-components suspended therein each adapted to engage the binding sites. The first fluid proximate to selected binding sites is heated to increase the viscosity of the responsive fluid proximate to the selected binding sites so that the first micro-components suspended in the first fluid are inhibited from engaging the selected binding sites.
    Type: Grant
    Filed: September 3, 2004
    Date of Patent: December 8, 2009
    Assignee: Eastman Kodak Company
    Inventors: Ravi Sharma, Daniel D. Haas, Theodore K. Ricks
  • Patent number: 7628669
    Abstract: A method of modifying a work function of a conductor surface for use in organic light emitting devices. A plasma treatment is performed on the conductive layer. The plasma treatment employs a mixing gas comprising a nitrogen-containing gas for decreasing the work function and an oxygen-containing gas for increasing the work function. A flow ratio of the nitrogen-containing gas to the oxygen-containing gas is controlled to modify the work function.
    Type: Grant
    Filed: March 22, 2005
    Date of Patent: December 8, 2009
    Assignee: Au Optronics Corp.
    Inventor: Tswen-Hsin Liu
  • Publication number: 20090297695
    Abstract: To provide a method for producing an organic electroluminescent device having luminescent characteristics of high efficiency and prolonged lifetime and in which the occurrence of defects is suppressed, the organic electroluminescent device, and an electronic apparatus. A method for producing an organic electroluminescent device including a first electrode, a second electrode, and a functional layer disposed between the first electrode and the second electrode, the functional layer including at least a luminescent layer, the method includes the steps of mixing a solvent and a functional material to produce a functional solution; and applying the functional solution to form the functional layer by a wet film formation process, wherein, before the functional solution is produced, the solvent is subjected to dehydration and deoxygenation in order to remove water and oxygen in the solvent.
    Type: Application
    Filed: August 5, 2009
    Publication date: December 3, 2009
    Applicant: Seiko Epson Corporation
    Inventors: Masayuki MITSUYA, Shunichi Seki
  • Publication number: 20090297694
    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: Application
    Filed: May 27, 2009
    Publication date: December 3, 2009
    Inventors: Shunpei Yamazaki, Koichiro Tanaka, Hisao Ikeda, Satoshi Seo
  • Patent number: 7625601
    Abstract: A method for metering powdered or granular material onto a heated surface to vaporize such material, includes providing a container with powdered or granular material having at least one component; providing a rotatable auger disposed in material receiving relationship with the container for receiving powdered or granular material from the container and as the auger rotates, such rotating auger translates such powdered or granular material along a feed path to a feeding location; and providing at least one opening at the feeding location such that the pressure produced by the rotating auger at the feeding location causes the powdered or granular material to be forced through the opening onto the heated surface in a controllable manner.
    Type: Grant
    Filed: February 4, 2005
    Date of Patent: December 1, 2009
    Assignee: Eastman Kodak Company
    Inventors: Michael Long, Thomas W. Palone, Bruce E. Koppe
  • Patent number: 7625602
    Abstract: A method for metering powdered or granular material onto a heated surface to vaporize such material. The method comprises providing a rotatable auger d for receiving powdered or granular material and as the rotatable auger rotates, such rotatable auger translates such powdered or granular material along a feed path to a feeding location. The method also providing at least one opening at the feeding location such that the pressure produced by the rotating rotatable auger at the feeding location causes the powdered or granular material to be forced through the opening onto the heated surface in a controllable manner. The material is agitated or fluidized proximate to the feeding location.
    Type: Grant
    Filed: May 3, 2005
    Date of Patent: December 1, 2009
    Assignee: Eastman Kodak Company
    Inventors: Michael Long, Neil P. Redden, Bruce E. Koppe, Thomas W. Palone
  • Patent number: 7625638
    Abstract: The present invention provides a moisture-absorbent formed body comprising 1) an amine compound and/or a thermally conductive material, 2) a hygroscopic agent, and 3) a resin component, for removing moisture from within the sealed atmosphere of an organic electroluminescent device, and thereby suppressing the occurrence of dark spots.
    Type: Grant
    Filed: July 7, 2003
    Date of Patent: December 1, 2009
    Assignee: Dynic Corporation
    Inventors: Teruo Uchibori, Kaneto Ohyama, Kentaro Miyazawa, Yohei Kawaguchi, Hidehiko Maki, Yusuke Nakajima
  • Patent number: 7625596
    Abstract: In one embodiment the present invention discloses a method for making a first layer in an electroactive device comprising the steps of (i) preparing a composition by mixing at least one adhesion promoter material and at least one electroactive material; and (ii) depositing said composition onto a second electroactive layer of said electroactive device; and (iii) optionally further depositing a third electroactive layer onto the surface of said first layer opposite the second layer, wherein said composition enables adhesion between said first layer and said second layer or between said first layer and said third layer, or between said first layer and both said second layer and said third layer.
    Type: Grant
    Filed: December 15, 2004
    Date of Patent: December 1, 2009
    Assignee: General Electric Company
    Inventors: Larry Neil Lewis, Venkatesan Manivannan, Tami Janene Faircloth, Jie Liu, James Anthony Cella
  • Publication number: 20090285977
    Abstract: A full color organic light emitting display device (OLED) and a method of fabricating the same are provided. The OLED includes an element substrate and an encapsulating substrate. The element substrate includes a color filter layer or a color conversion layer, as well as an organic layer with an emission layer that emits light of a single color. The encapsulating substrate includes a color filter or a color conversion layer and a moisture absorbent, and a the color filter or color conversion layer corresponds to the emission region. Accordingly, there is no need to have a separate process for the moisture absorbent and the color filter layer or the color conversion layer may be formed without using a shadow mask, so that a high resolution OLED may be advantageously realized.
    Type: Application
    Filed: July 23, 2009
    Publication date: November 19, 2009
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventor: Joon-Young PARK
  • Publication number: 20090284949
    Abstract: An optical element includes a light-transmitting structure and a first reflection-prevention layer. The light-transmitting structure has a first surface and a second surface facing the first surface. The first reflection-prevention layer includes a plurality of first light-refractive index buffering particles deposited on the first surface such as the concentration of the particles decreases as the distance from the first surface increases. The first reflection-prevention layer decreases the variation of a light-refractive index from the light-transmitting structure to an air layer to decrease the light reflectance of the first surface. Therefore, the light transmittance of the light-transmitting structure is increased due to the reflection-prevention layer formed on a surface of the light-transmitting structure, so that luminance may be enhanced. Moreover, the reflection-prevention layer may enhance the resistance of the light-transmitting structure to external impacts.
    Type: Application
    Filed: April 1, 2009
    Publication date: November 19, 2009
    Inventors: Hee-Tae KIM, Seok-Hyun NAM, Dong-Chin LEE, Hyuk-Hwan KIM, Kyung-Min KIM, So-Jin RYU
  • Publication number: 20090284145
    Abstract: New organic light-emitting diodes and related electroluminescent devices and methods for fabrication, using siloxane self-assembly techniques.
    Type: Application
    Filed: July 2, 2009
    Publication date: November 19, 2009
    Inventors: Tobin J. Marks, Qinglan Huang, Ji Cui, Jonathan Veinot
  • Patent number: 7618674
    Abstract: A deposition mask and a method for manufacturing an organic light emitting display (OLED) using the same are provided. The deposition mask is intended for preventing an organic film from being damaged due to touching of a blocked-off portion of the mask to an emission layer (EML), or chemical transition from being generated at the organic film. For that purpose, the deposition mask stuck to a substrate of the OLED to deposit an organic EML includes an opening and an indentation. The opening is opened so as to deposit the organic EML. The indentation is indented a predetermined depth from a plane facing the substrate.
    Type: Grant
    Filed: July 14, 2005
    Date of Patent: November 17, 2009
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Chang-Ho Kang, Tae-Seung Kim, Jae-Min Hong
  • Publication number: 20090278440
    Abstract: A dispersion-type EL element formed on a thin or flexible transparent plastic film and a method for manufacturing the same are provided. The dispersion-type electroluminescent element is a dispersion-type electroluminescent element with at least a transparent conductive layer, a phosphor layer, a dielectric layer, and a rear electrode layer sequentially formed on a transparent plastic film surface, in which a thickness of the transparent plastic film is less than 50 ?m, and the transparent conductive layer is formed by applying compression processing to an applied layer formed by applying a transparent conductive layer forming application liquid mainly composed of conductive oxide particles and a binder on the transparent plastic film surface and then, curing the compressed layer.
    Type: Application
    Filed: June 26, 2006
    Publication date: November 12, 2009
    Inventors: Masaya Yukinobu, Yuki Murayama, Hiroyuki Tanaka, Yasuo Tsukui
  • Publication number: 20090274831
    Abstract: A method of forming a film consisted of an organic compound material at low cost using an organic compound material having the high luminescence efficiency is provided. The present invention is characterized by the fact that a layer containing an organic compound is formed on the substrate under the inactive gas atmosphere by spreading the colloidal solution (referred to as sol) in which an aggregate of organic compound is dispersed. Noted that in the present invention, an organic compound may be particulate that several pieces of organic compound is aggregated in the liquid, or may be an organic compound partially dissolved in the liquid. Moreover, according to the present invention, a metal thin film is formed using the colloidal solution in which a metal material having a small work function is dispersed on the layer containing an organic compound by a coat method and made it a cathode or one portion of a cathode.
    Type: Application
    Filed: June 5, 2009
    Publication date: November 5, 2009
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventor: Hideaki KUWABARA
  • Publication number: 20090274830
    Abstract: The present invention generally relates to a method and an apparatus for processing one or more substrates on a roll to roll system. The one or more substrates may pass through several processing chambers to deposit the layers necessary to produce an OLED structure. The processing chambers may include ink jetting chambers, chemical vapor deposition (CVD) chambers, physical vapor deposition (PVD) chambers, and annealing chambers. Additional chambers may also be present.
    Type: Application
    Filed: April 28, 2009
    Publication date: November 5, 2009
    Applicant: APPLIED MATERIALS, INC.
    Inventors: JOHN M. WHITE, Takehara TAKAKO
  • Patent number: 7611745
    Abstract: The invention is directed to repairing of a defective portion caused by a short circuit without generating a dark spot by a pin hole. Laser beams are irradiated to an irradiating region set in a peripheral region of a foreign substance. This prevents damaging of an organic EL element which the foreign substance adheres to and formation of the pin hole. By irradiating laser beams to the peripheral region at a distance from the foreign substance, energy of the laser beams spreads concentrically around the irradiating region, and is also supplied to the foreign substance indirectly. Therefore, the high resistive region can be formed between an anode layer and a cathode layer so that the defective portion caused by the short circuit by the foreign substance can be repaired.
    Type: Grant
    Filed: January 16, 2004
    Date of Patent: November 3, 2009
    Assignee: Sanyo Electric Co., Ltd.
    Inventors: Ryuji Nishikawa, Ryozo Nagata, Takashi Ogawa
  • Publication number: 20090269873
    Abstract: A liquid crystal device comprising: a pair of substrates having an electrode arrangement thereon; an orientation control means provided on at least one of said substrates; and a ferroelectric or antiferroelectric liquid crystal layer interposed between said substrates, said liquid crystal layer being uniaxially oriented by virtue of said orientation control means, wherein means for suppressing an orientation control effect of said orientation control means with respect to said liquid crystal layer is provided between said liquid crystal layer and said orientation control means.
    Type: Application
    Filed: July 9, 2009
    Publication date: October 29, 2009
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Toshimitsu KONUMA, Takeshi NISHI, Michio SHIMIZU, Harumi MORI, Kouji MORIYA, Satoshi MURAKAMI
  • Publication number: 20090269486
    Abstract: The invention provides an evaporation system which is one of deposition devices promoting an efficiency of utilizing an EL material and excellent in uniformity and throughput of forming an EL layer and an evaporation method therefor. Further, the invention provides a method of efficiently vapor-depositing an EL material to a large area substrate. Further, the invention provides a system capable of avoiding an impurity from mixing to the EL material. An evaporation system of the invention is featured in moving a substrate and an evaporation source relative to each other. That is, the invention is featured in that in the evaporation system, an evaporation source holder installed with a vessel filled with an evaporation material is moved by a certain pitch relative to a substrate or the substrate is moved by a certain pitch relative to the evaporation source.
    Type: Application
    Filed: June 19, 2009
    Publication date: October 29, 2009
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventors: Shunpei YAMAZAKI, Masakazu MURAKAMI
  • Publication number: 20090267507
    Abstract: This invention provides a process for producing an organic EL element that, in forming, by a coating method, an organic EL element comprising a substrate bearing a plurality of organic EL elements each comprising at least a first electrode, one or more organic compound layers, a second electrode, and a sealing layer, can easily form an external connection terminal forming part for external connection terminal formation and can realize high production efficiency and stable performance quality.
    Type: Application
    Filed: August 24, 2006
    Publication date: October 29, 2009
    Applicant: KONICA MINOLTA HOLDINGS, INC.
    Inventors: Yousuke Takashima, Kiyokazu Tanahashi, Keiichi Aoki
  • Publication number: 20090267499
    Abstract: The present invention provides an organic light emitting device and a fabrication method thereof, comprising a substrate, an anode layer formed on said substrate, an organic function layer formed on said anode layer, and a cathode layer formed on said organic function layer, characterized in that, further comprising a cathode interface modification layer between said organic function layer and said cathode layer, wherein said cathode interface modification layer contains a compound AxByCz, A is an element of Group IA or IIA, B is an element of Group IIIA or VA, C is a hydrogen element, and 1?x?2, y ? [0,1], 1?z?4. In the present invention, the cathode interface modification layer is formed after forming a light emitting layer, the cathode interface modification layer contains a compound AxByCz, the electron injection ability at the cathode interface can be improved by adding the cathode interface modification layer, and hence the device performance can be significantly improved.
    Type: Application
    Filed: April 22, 2009
    Publication date: October 29, 2009
    Inventors: Yong Qiu, Lian Duan, Yang Li, Guohui Zhang
  • Publication number: 20090269485
    Abstract: By irradiating a first substrate which is an evaporation donor substrate including a function layer in which films having different refractive indexes (high-refractive index films and low refractive index films) are stacked with first light (wavelength=?1), a material layer over the first substrate is patterned, and by irradiating the first substrate with second light (wavelength=?2) which is different from ?1, the material layer which is patterned is evaporated onto a second substrate which is a deposition target substrate.
    Type: Application
    Filed: April 24, 2009
    Publication date: October 29, 2009
    Inventors: Hisao IKEDA, Takahiro IBE
  • Publication number: 20090262297
    Abstract: Provided is a production method for a thin birefringent film with a satisfactory alignment property, in which a refractive index is controlled three-dimensionally and optical properties are unlikely to decrease in the case where the birefringent film is placed under high temperature and high humidity. The production method for a birefringent film of the present invention includes: the step (1) of preparing a solution that exhibits a nematic liquid crystal phase, containing at least one kind of polycyclic compound containing a —SO3M group and/or a —COOM group (M represents a counter ion) and a solvent; the step (2) of preparing a base material at least one surface of which is subjected to a hydrophilization treatment; and the step (3) of applying the solution prepared in the step (1) to the surface of the base material prepared in the step (2), the surface being subjected to the hydrophilization treatment, followed by drying, in which a contact angle of water at 23° C.
    Type: Application
    Filed: August 29, 2007
    Publication date: October 22, 2009
    Applicant: NITTO DENKO CORPORATION
    Inventors: Junzo Miyazaki, Shouichi Matsuda
  • Publication number: 20090263566
    Abstract: In a deposited thin film for use in a semiconductor device or the like for which a high integration degree and ultrafine machining are required, adsorption of contaminant, and particularly, of organic substances on the deposited thin film has become a problem. A phenomenon has been found out that, in a case where a gas pressure in a chamber is maintained in a viscous flow region, the adsorption of the organic substances is significantly decreased as compared with a case where the gas pressure is maintained in a molecular flow region. Based on this phenomenon, the gas pressure is controlled so that the gas pressure can be set in the molecular flow region at a time of forming the deposited thin film and so that the gas pressure can be set in the viscous flow region while such deposition is not being performed, thus making it possible to form the deposited thin film with less contamination from the organic substances.
    Type: Application
    Filed: September 21, 2005
    Publication date: October 22, 2009
    Inventors: Tadahiro Ohmi, Akinobu Teramoto
  • Publication number: 20090261709
    Abstract: In a method of manufacturing an organic light emitting display according to an embodiment, when a thin film transistor substrate including a display area and a non-display area is prepared, an organic light emitting layer is formed on the display area. Then, a first cathode layer is formed on the organic light emitting layer through a first deposition method, and a second cathode layer is formed on the first cathode layer through a second deposition method. The first and/or second deposition method may be performed by using heat. Thus, the light-emitting quality of the organic light emitting display may be improved.
    Type: Application
    Filed: January 21, 2009
    Publication date: October 22, 2009
    Inventors: Chang-Mo PARK, Jae-Kook Ha, Joo-Hyeon Lee