Electroluminescent Lamp Patents (Class 427/66)
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Patent number: 7600881Abstract: A semiconductor light emitting apparatus comprises: a semiconductor light emitting device; resin that seals the semiconductor light emitting device; and antireflective coating provided on a surface of the resin. The antireflective coating is made of material having an intermediate refractive index between the refractive index of the resin and the refractive index of air.Type: GrantFiled: June 1, 2007Date of Patent: October 13, 2009Assignee: Kabushiki Kaisha ToshibaInventor: Takayuki Sakai
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Publication number: 20090252933Abstract: A printer for digital printing in which ink is deposited in metered amounts on a substrate. The printer includes a wheel rotatable by a shaft of a motor, an idler disposed in a paint reservoir, and a segment of wire disposed around the wheel and the idler. A computer controls movement of the wire by controlling the rotation of the wheel. As the motor rotates the wheel, electroluminescent material contained within the paint reservoir coats the wire and is drawn by the wire in front of an air stream, which pulls the electroluminescent material from the wire and carries it toward the substrate to make an electroluminescent sign.Type: ApplicationFiled: April 4, 2008Publication date: October 8, 2009Inventors: M. Benton Free, Daniel W. Hennen, Gregory G. Jager
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Publication number: 20090252863Abstract: There is provided is a method of manufacturing a protection film or a method of manufacturing an inorganic film, wherein density of the inorganic film is sufficient. In the method of manufacturing a barrier film 12 and a sealing film 20 as protection films for protecting an organic EL element 100 and an organic TFT 50, a pre-oxidized inorganic film 120, being not completely oxidized, is formed and the oxidized inorganic film 120 thus formed is oxidized to thereby form a part of the protection film.Type: ApplicationFiled: July 3, 2006Publication date: October 8, 2009Applicant: PIONEER CORPORATIONInventor: Tatsuya Yoshizawa
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Patent number: 7597926Abstract: Lithium quinolate is an electroluminescent material which emits light in the blue region of the spectrum.Type: GrantFiled: May 27, 2005Date of Patent: October 6, 2009Assignee: South Bank University Enterprises Ltd.Inventor: Poopathy Kathirgamanathan
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Publication number: 20090243466Abstract: An organic EL display device includes a first light emission layer which includes a first dopant material having a first absorbance peak in absorbance spectrum characteristics and a first host material having a first absorbance bottom on a shorter wavelength side than the first absorbance peak, the first light emission layer extending over the first to third organic EL elements and being disposed above pixel electrodes of the first to third organic EL elements, and a second light emission layer which includes a second dopant material having a second absorbance peak in absorbance spectrum characteristics and a second host material having a second absorbance bottom on a shorter wavelength side than the first absorbance peak and than the second absorbance peak, the second light emission layer extending over the first to third organic EL elements and being disposed above the first light emission layer.Type: ApplicationFiled: March 23, 2009Publication date: October 1, 2009Inventors: Shuhei Yokoyama, Masuyuki Oota, Satoshi Okutani, Takanobu Takenaka
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Publication number: 20090243475Abstract: One embodiment of the present invention is an organic electroluminescent element including a substrate, a first electrode arranged on said substrate, a luminescent medium layer including at least an organic luminescent layer and a molybdenum oxide layer arranged on the first electrode, a second electrode facing the first electrode, the luminescent medium layer sandwiched between the electrodes and the molybdenum oxide layer including at least molybdic anhydride and one or more other inorganic compounds.Type: ApplicationFiled: March 18, 2009Publication date: October 1, 2009Applicant: Toppan Printing Co., Ltd.Inventors: Ryo Shoda, Yuko Abe, Eiichi Kitazume
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Publication number: 20090243478Abstract: One embodiment of the present invention is an organic electroluminescence element including an anode which is a hole injection electrode; a cathode which is an electron injection electrode, the cathode facing the anode; an organic light emitting layer between the anode and the cathode, the organic light emitting layer including a molybdenum oxide layer, the molybdenum oxide layer including a crystal molybdenum oxide and an amorphous molybdenum oxide, and the crystal molybdenum oxide and the amorphous molybdenum oxide being mixed or stacked.Type: ApplicationFiled: March 25, 2009Publication date: October 1, 2009Applicant: Toppan Printing Co., Ltd.Inventors: Ryo SHODA, Eiichi KITAZUME, Shingo KANETA
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Publication number: 20090246356Abstract: A production method of an ink composition for organic EL devices comprises preparing a composition containing a polymer organic EL material and an organic solvent; and applying an electric field to the composition. Preferably, a composition containing a polymer organic EL material prepared by a coupling reaction between a halogenated aromatic compound and an aromatic boron compound in the presence of palladium catalyst or nickel catalyst, an organic solvent, and an aromatic carboxylic acid contained in an amount of 0.01- 1 wt % based on the total amount of the organic solvent and aromatic carboxylic acid is prepared.Type: ApplicationFiled: March 27, 2009Publication date: October 1, 2009Applicant: PANASONIC CORPORATIONInventors: Takaaki HIGASHIDA, Kazuhiro NISHIKAWA
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Publication number: 20090242839Abstract: The invention relates to a process for the incorporation of volatile phosphors into the pore system of inverse opals by means of gas-phase infiltration, and to corresponding illuminantsType: ApplicationFiled: February 28, 2007Publication date: October 1, 2009Inventors: Holger Winkler, Ulrich Kynast, Marina Lezhnina
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Patent number: 7595084Abstract: An organic light emitting device can includes first and second metal layers used as electrodes on a substrate, an electron transport layer on the first metal layer, a first partition wall insulating the first metal layer from the second metal layer and extending onto the electron transport layer along the first metal layer, a second partition wall on the first metal layer around the electron transport layer, a third partition wall separated from the first partition wall and on the second metal layer, an organic light emitting layer on the electron transport layer, a hole transport layer on the organic light emitting layer and contacting the second metal layer, a protecting layer covering the hole transport layer and extending to the first and second metal layers beyond the second and third partition walls, and sealing materials filling spaces between the protecting layer and the first and second layers.Type: GrantFiled: August 7, 2007Date of Patent: September 29, 2009Assignee: Samsung Mobile Display Co., Ltd.Inventors: Mu-Gyeom Kim, Sang-Yeol Kim, Vassili Leniachine, Mi-Jeong Song
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Patent number: 7595585Abstract: A pixel sub-structure for an electroluminescent display and a method for making the same. The sub-structure comprising: a color conversion layer; and an optical enhancement layer; wherein at least a portion of the color conversion layer is integrated with at least a portion of the optical enhancement layer.Type: GrantFiled: November 24, 2006Date of Patent: September 29, 2009Assignee: Ifire IP CorporationInventors: Abdul M. Nakua, Xingwei Wu, Maizhi Yang, Dan Daeweon Cheong, John Wesley Moore
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Publication number: 20090236972Abstract: An organic light emitting device having a phase-separated light-emissive layer comprising: a charge transport phase comprising a charge transport material; and an emitting phase, the emitting phase comprising a plurality of discrete emissive domains dispersed in the charge transport phase, each emitting domain comprising a host material and one or more metal complexes for emitting light by phosphorescence; wherein the charge transport material has a T1 energy level lower than the T1 energy level of the metal complexes and the host material has a T1 energy level higher than the T1 energy level of the metal complexes.Type: ApplicationFiled: December 12, 2005Publication date: September 24, 2009Applicants: Cambridge Display Technology Limited, CDT Oxford LimitedInventors: Carl Towns, Stephen O'Connor, Andrew Bruce Holmes
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Publication number: 20090233051Abstract: A method of fabricating a substrate with micro holes, the method comprising providing a roll of flexible film having a first surface and a second surface, the first surface and the second surface being separated from one another by a thickness of the roll of flexible film, identifying a depth of the micro holes to be formed, and punching the first surface of the roll of flexible film to form a plurality of micro holes with a depth into the first surface.Type: ApplicationFiled: March 17, 2008Publication date: September 17, 2009Inventor: Shi-Chiung Chen
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Publication number: 20090232970Abstract: Disclosed is a method of manufacturing an EL element. The EL element includes: a first electrode formed on a substrate; a carrier transport layer formed on the first electrode; a second electrode formed on the carrier transport layer; and a partition wall by which an opening is defined, the partition wall including a side wall in a longer direction of the opening and a side wall in a shorter direction of the opening, the opening being formed by surrounding the first electrode by the side wall in the longer direction and the side wall in the shorter direction. The method includes: moving a nozzle relatively along the shorter direction of the opening; and applying a liquid material, which is produced by dissolving or dispersing a material of the carrier transport layer in a solvent, to the first electrode in the opening by injecting the liquid material from the nozzle.Type: ApplicationFiled: March 11, 2009Publication date: September 17, 2009Applicant: Casio Computer Co., Ltd.Inventor: Takashi KIDU
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Patent number: 7588838Abstract: Providing a particle distributed electroluminescent device which is improved in luminescent color control, prevention of luminescent color change over time and heavy circuit load, and/or representation of a delicate gradation sequence, as well as capable of providing high brightness and luminous efficiency, and a display unit using such an electroluminescence device. Two types of luminescent particles, each having a dielectric core and a fluorescent coating layer are used as luminescent particles distributed in a luminescent layer of a particle distributed electroluminescence device. The dielectric cores of the two types of luminescent particles are formed of dielectric materials having different dielectric constants with each other.Type: GrantFiled: February 4, 2005Date of Patent: September 15, 2009Assignee: FUJIFILM CorporationInventors: Hiroshi Fujimoto, Tomotake Ikada, Kenji Takahashi
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Patent number: 7588795Abstract: A manufacturing method of an active matrix organic light emitting diode (AMOLED) display and an apparatus for manufacturing the AMOLED display, where the display has improved surface flatness and thickness uniformity as well as an improved image quality at edge regions of a pattern. According to the exemplary embodiment of the present invention, an anode electrode is formed on a lower structure of a substrate, an organic layer is formed on the anode electrode by imaging a complex laser beam on a donor film disposed on the substrate having light emitting materials, the complex laser beam having energy distribution inclination over 2%/?m at a threshold energy. The donor film is removed, and a cathode electrode is formed on the organic layer.Type: GrantFiled: August 26, 2005Date of Patent: September 15, 2009Assignee: Samsung Mobile Display Co., Ltd.Inventors: Seong Taek Lee, Jang Hyuk Kwon, Tae Min Kang, Joon Young Park
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Publication number: 20090226604Abstract: To provide a film forming apparatus capable of using an expensive organic EL raw material without waste and uniformly forming an organic EL film over a long period of time and a jig therefor. A plurality of ejection vessels are provided for a single raw material container section. A switcher is provided for carrying out switching from a piping system, which evaporates an organic EL raw material in the raw material container section and supplies it along with a carrier gas to one of the ejection vessels, to a piping system for another ejection vessel. In this manner, by supplying the organic EL raw material from the single raw material container section to the plurality of ejection vessels by switching, the use efficiency of the organic EL raw material can be improved.Type: ApplicationFiled: September 5, 2006Publication date: September 10, 2009Applicants: TOHOKU UNIVERSITY, TOKYO ELECTRON LIMITED, KABUSHIKI KAISHA TOYOTA JIDOSHOKKIInventors: Tadahiro Ohmi, Takaaki Matsuoka, Shozo Nakayama, Hironori Ito
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Publication number: 20090226656Abstract: A layered structure for use with a high power light emitting diode system comprises an electrically insulating intermediate layer interconnecting a top layer and a bottom layer. The top layer, the intermediate layer, and the bottom layer form an at least semi-flexible elongate member having a longitudinal axis and a plurality of positions spaced along the longitudinal axis. The at least semi-flexible elongate member is bendable laterally proximate the plurality of positions spaced along the longitudinal axis to a radius of at least 6 inches, twistable relative to its longitudinal axis up to 10 degrees per inch, and bendable to conform to localized heat sink surface flatness variations having a radius of at least 1 inch. The top layer is pre-populated with electrical components for high wattage, the electrical components including at least one high wattage light emitting diode at least 1.0 Watt per 0.8 inch squared.Type: ApplicationFiled: March 6, 2008Publication date: September 10, 2009Inventors: Wm. Todd Crandell, Anthony Mitchell Johnson, Tony Stephen Schweitzer, H. Vic Holec
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Patent number: 7586256Abstract: A patterned phosphor structure, and EL laminate containing same, forming red, green, and blue sub-pixel phosphor elements for an AC electroluminescent display. The patterned phosphor structure includes at least a first and a second phosphor emitting light in different ranges of the visible spectrum, but with combined emission spectra contains red, green, and blue light, the first and second phosphors being in a layer, arranged in adjacent, repeating relationship to each other to provide a plurality of repeating first and second phosphor deposits. Photolithographic methods for producing the patterned phosphor structure are also provided. Also provided is an improved dielectric layer for use in an EL laminate, including a pressed, sintered ceramic material having, compared to an unpressed, sintered dielectric layer of the same composition, improved dielectric strength, reduced porosity and uniform luminosity in an EL laminate.Type: GrantFiled: August 14, 2003Date of Patent: September 8, 2009Assignee: IFire IP CorporationInventors: Xingwei Wu, George A. Kupsky
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Publication number: 20090220680Abstract: A method of making an OLED device includes providing a substrate having a first electrode into a controlled environment; baking the substrate in the controlled environment to remove moisture; forming an inorganic short reduction layer over the moisture reduced substrate in the controlled environment after baking the substrate, such short reduction layer having a resistivity greater than the resistivity of the first electrode; forming an organic electroluminescent media over the moisture reduced substrate in the controlled environment; forming a second electrode over the organic electroluminescent media in the controlled environment wherein the OLED device is formed; and encapsulating the OLED device.Type: ApplicationFiled: February 29, 2008Publication date: September 3, 2009Inventor: Dustin L. Winters
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Patent number: 7582333Abstract: A pattern forming method is provided which discharges droplets of a liquid material on a substrate and forms a film pattern W. The method comprises a first step of forming a central pattern W1 of the film pattern W on the substrate, a second step of forming a first side pattern W2 with respect to the central pattern W1, and a third step of forming a second side pattern W3 with respect to the central part W1.Type: GrantFiled: March 10, 2004Date of Patent: September 1, 2009Assignee: Seiko Epson CorporationInventors: Toshimitsu Hirai, Hironori Hasei
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Publication number: 20090211640Abstract: Provided are an electron injecting layer formed by spin-coating a solution of a superacid salt, a lithium salt or a mixture thereof dissolved in a solvent, a photovoltaic device including the same, a method of manufacturing the photovoltaic device, and an organic light-emitting device including the electron injecting layer.Type: ApplicationFiled: February 17, 2009Publication date: August 27, 2009Inventors: Moon-Jae Lee, Dae-Won Kim, Chang-Hee Lee, Ji-Young Kim, Jung-Ho Park
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Publication number: 20090212690Abstract: An electroluminescent device is provided. The electroluminescent device includes an intrinsically conductive polymer layer having a thickness of from about 0.1 to about 3 microns and an elongation less than about 100%; and a phosphor layer having a thickness from about 20 microns to about 70 microns. The electroluminescent device demonstrates a loss of brightness of less than about 10% after undergoing repeated creasing, crushing, flexing, twisting, abrading, and/or stretching.Type: ApplicationFiled: December 18, 2008Publication date: August 27, 2009Applicant: Lumimove, Inc., d/b/a CROSSLINKInventors: Eric A. Bruton, Mauricio Pinto, Shane Haley
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Publication number: 20090212695Abstract: The present invention relates to a white and color photoexcitation light emitting sheet comprising a substrate, a light source formed on the substrate, and a white and color photoexcitation light emitting layer capable of converting a light emitted from the light source into a light having a different wavelength, where the white and color photoexcitation light emitting layer is fabricated by mixing a matrix polymer, white and color photoexcitation light emitting materials and a solvent, spinning the resulting mixture to prepare an ultrafine composite fiber layer of the matrix polymer/photoexcitation light emitting materials, and thermocompressing the ultrafine composite fiber layer; and a method for fabrication thereof. The white and color photoexcitation light emitting sheet according to the present invention has uniform brightness and color coordinates and exhibits high color reproducibility.Type: ApplicationFiled: January 26, 2009Publication date: August 27, 2009Inventors: Jai Kyeong Kim, Dong Young Kim, Seong Mu Jo, Jung Soo Park, June Whan Choi, Dae Seok Na, Byung Hong Yi, Jae Hyun Lim
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Patent number: 7579040Abstract: Provided is a method for fabricating an organic EL device that can prevent delamination of an electrode. The method includes: forming electrode separators on a substrate, the electrode separators being spaced apart by a constant distance from one another; and depositing an electrode material on an entire surface of the substrate including the electrode separators to form an electrode separated by the electrode separators. According to the present invention, since the anode is automatically separated in the unit of pixels due to the existence of the electrode separator, delamination of the anode can be prevented, and further product reliability can be enhanced. Also, since a complicated photolithography process is not needed, process efficiency can be enhanced.Type: GrantFiled: December 10, 2004Date of Patent: August 25, 2009Assignee: LG Display Co., Ltd.Inventors: Ho Nyun Lee, Chang Nam Kim
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Publication number: 20090208776Abstract: Provided are an organic optoelectronic device and a method for manufacturing the same. The organic optoelectronic device comprises an anode, an organic electron material layer formed on the anode, an electron transporting layer formed on the organic electron material layer, and a cathode formed on the electron transporting layer. The electron transporting layer comprises a blend of a low molecular weight electron transporting material having a LUMO between about 1.8 eV to about 3.0 eV and a film-forming polymer having a LUMO greater than that of the low molecular weight electron transporting material.Type: ApplicationFiled: February 19, 2008Publication date: August 20, 2009Applicant: GENERAL ELECTRIC COMPANYInventors: Jie Liu, Qing Ye, Yangang Liang, Shengxia Liu
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Patent number: 7575775Abstract: The present invention is a low pressure physical vapor deposition method for the deposition of multi element sulfide thin film phosphor compositions for electroluminescent devices where a thermal source comprising a polysulfide compound provides the source of sulfur species for phosphor film deposition and/or annealing. The method is particularly useful for the deposition of phosphors for full color ac electroluminescent displays employing thick film dielectric layers with a high dielectric constant.Type: GrantFiled: October 6, 2004Date of Patent: August 18, 2009Assignee: Ifire IP CorporationInventors: James Alexander Robert Stiles, Paul Barry Del Bel Belluz, John Wesley Moore
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Publication number: 20090200931Abstract: An organic EL device includes a substrate, an organic planarizing layer disposed on the substrate, a first electrode disposed on the organic planarizing layer, a partition wall disposed on the first electrode and having an opening which defines the first electrode and exposes an upper portion of the first electrode, a functional layer disposed in the opening of the partition wall, and a second electrode disposed so as to cover the functional layer. The partition wall includes at least an inorganic partition wall portion, and the inorganic partition wall portion has an inorganic partition wall portion through-hole which passes through the inorganic partition wall portion and extends to the organic planarizing layer.Type: ApplicationFiled: January 26, 2009Publication date: August 13, 2009Applicant: SEIKO EPSON CORPORATIONInventors: Shuichi TAKEI, Atsushi KITABAYASHI
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Publication number: 20090200933Abstract: The present invention relates to triarylamine compounds, compositions comprising such compounds, and electronic devices and applications comprising at least one layer containing at least one of the new compounds. The compounds can be used as monomers to create homopolymers or copolymers.Type: ApplicationFiled: April 7, 2009Publication date: August 13, 2009Applicant: E. I. DU PONT DE NEMOURS AND COMPANYInventors: Eric Maurice Smith, Nora Sabina Radu, Norman Herron, Arthur Dabrowski, Frederick P. Gentry, Gene M. Rossi, Gary A. Johansson
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Publication number: 20090202708Abstract: An apparatus of manufacturing a light emitting element having a plurality of layers including an organic layer on a substrate to be processed is disclosed. The apparatus includes a plurality of process chambers to which the substrate to be processed is transferred in series, wherein the plurality of process chambers are substantially linearly connected to one another and wherein adjacent two of the process chambers are filled with gas that does not react with a layer on the substrate to be processed when the substrate to be processed is transferred between the two process chambers.Type: ApplicationFiled: June 13, 2007Publication date: August 13, 2009Inventors: Kazuki Moyama, Yasushi Yagi, Toshihisa Nozawa, Tadahiro Ohmi, Chuichi Kawamura, Kimihiko Yoshino
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Patent number: 7572478Abstract: A technique for sealing an EL panel of a light emitting device is provided. By preparing a absorption metal as a film on EL elements on the inside of an enclosed space, it becomes easy to made the interior of the space possess a absorption function, and further, an enclosure structure can be fabricated without the penetration of oxygen and moisture into the space because the absorption film is formed in succession after formation of the EL elements, according to the present invention.Type: GrantFiled: July 29, 2005Date of Patent: August 11, 2009Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Keiiti Ogura, Masahiro Takahashi
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Organic Light Emitting Device, Method of Manufacturing the Same, and Method of Forming Organic Layer
Publication number: 20090197496Abstract: An organic light emitting device that has improved lifespan properties by improving the characteristics of an interface between at least one of a red emissive layer, a green emissive layer or a blue emissive layer, and an electron transport layer, and a method of manufacturing the organic light emitting device.Type: ApplicationFiled: April 10, 2009Publication date: August 6, 2009Inventor: Ji-Hwan Yoon -
Publication number: 20090194780Abstract: An organic light emitting diode (OLED) display device and a method of fabricating the same are provided. When an organic layer having an emission layer (EML) is formed using a deposition mask, damage to a pixel defining layer due to inconsistencies or unevenness of the deposition mask is prevented or reduced using spherical spacers disposed on the pixel defining layer. A plurality of spherical spacers are applied on the pixel defining layer prior to forming an opening in the pixel defining layer exposing the first electrode. An organic layer having an emission layer (EML) is formed on the first electrode at the opening by using a deposition mask. The spherical spacers prevent or reduce damage to the pixel defining layer caused by inconsistencies or unevenness in the deposition mask by maintaining a spacing between the pixel defining layer and the deposition mask.Type: ApplicationFiled: January 23, 2009Publication date: August 6, 2009Inventor: Jung-Hyun Kwon
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Publication number: 20090195150Abstract: A top-emitting OLED display and fabrication method thereof are provided. The top-emitting OLED display includes providing a handling substrate. A composite layer is formed on the handling substrate. An organic light emitting unit is formed on the composite layer. A top electrode is formed on the organic light emitting unit. A reflective type display and fabrication method thereof are provided. The reflective type display includes providing a handling substrate. A composite layer is formed on the handling substrate, a thin film transistor array is formed on the composite layer.Type: ApplicationFiled: January 22, 2009Publication date: August 6, 2009Applicant: INDUSTRIAL TECHNOLOGY RESEARCH INSTITUTEInventors: Liang-Hsiang Chen, Jing-Yi Yan, Jia Chong Ho
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Patent number: 7569248Abstract: A method for preparing a multilayer of nanocrystals. The method includes the steps of (i) coating nanocrystals surface-coordinated by a photosensitive compound, or a mixed solution of a photosensitive compound and nanocrystals surface-coordinated by a material miscible with the photosensitive compound, on a substrate, drying the coated substrate, and exposing the dried substrate to UV light to form a first monolayer of nanocrystals, and (ii) repeating the procedure of step (i) to form one or more monolayers of nanocrystals on the first monolayer of nanocrystals. Further, an organic-inorganic hybrid electroluminescence device using a multilayer of nanocrystals prepared by the method as a luminescent layer. The luminescent efficiency and luminescence intensity of the electroluminescence device can be enhanced, and the electrical properties of the electroluminescence device can be controlled by the use of the multilayer of nanocrystals as a luminescent layer.Type: GrantFiled: December 3, 2004Date of Patent: August 4, 2009Assignee: Samsung Electronics Co., Ltd.Inventors: Eun Joo Jang, Shin Ae Jun, Sung Hun Lee, Jong Jin Park, Seong Jae Choi, Tae Kyung Ahn
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Publication number: 20090189521Abstract: The invention is directed to organic light emitting diodes (OLEDs) and methods of manufacturing the same. According to embodiments of the invention, an improved electron transport layer (ETL) reduces the driving voltage and current consumption of the OLED, and increase luminous efficiency and lifespan. The OLED includes a first electrode, an organic layer on the first electrode and including an emission layer (EML) and an ETL, and a second electrode on the organic layer.Type: ApplicationFiled: January 26, 2009Publication date: July 30, 2009Inventors: Min-Seung Chun, Dong-Heon Kim, Jae-Hyun Kwak, Jung-Ha Son, Mi-Kyung Kim, Kwan-Hee Lee
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Publication number: 20090186161Abstract: Disclosed are compositions, useful in ink jet printing methods, that prevent clogging during dispensing, achieve stable dispensing, prevent precipitation of content matter during dispensing, and prevent phase separation during film formation. Also disclosed are uniform, homogenous, functional films formed using the compositions and manufacturing methods therefor, as well as organic EL devices and other such display devices and manufacturing methods therefor. The compositions contain a functional material and a solvent comprising at least one benzene derivative having one or more substituents, whereby the substituents have at least three carbon atoms in total.Type: ApplicationFiled: March 10, 2009Publication date: July 23, 2009Applicants: Cambridge Display Technology Limited, Seiko Epson CorporationInventors: Sadao KANBE, Shunichi SEKI
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Publication number: 20090184636Abstract: An LED device that includes electrodes patterned over a substrate; the pattern forming several first electrodes separated by inter-electrode spacers. One or more light-emitting layers are formed over the first electrodes. A patterned conductive layer is formed over the one or more light-emitting layers and over the first electrodes in regions external to the inter-electrode spacers. A continuous unpatterned conductive layer is formed over both the patterned conductive layer and the inter-electrode spacers. Finally, a combination of the patterned and continuous unpatterned conductive layers form a single, bi-layered, electrically continuous second electrode.Type: ApplicationFiled: January 23, 2008Publication date: July 23, 2009Inventor: Ronald S. Cok
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Publication number: 20090186148Abstract: In a method of forming a pattern of an organic light emitting device (OLED), an organic material is evaporated in a predetermined pattern by using a pre-patterned heating element, and the evaporated organic material is transferred to a substrate where the OLED is formed. The method includes preparing a template having a heating element in a pattern corresponding to a multilayered structure of an OLED including a plurality of functional layers; forming an organic layer on the heating element; drawing a substrate for the OLED near to the heating element of the template; and transferring the organic layer on the heating element to the substrate by evaporating the organic layer using the heating element.Type: ApplicationFiled: July 17, 2008Publication date: July 23, 2009Inventors: Yu-Jin Kim, Jun-hee Choi, Andrei Zoulkarneev, Tae-yong Noh, Byoung-ki Choi, Myeong-suk Kim, Dong-woo Shin, Tae-woo Lee, Yu-ri Choi
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Publication number: 20090186419Abstract: The present invention relates to articles and methods involving luminescent films which may be useful in various applications. Luminescent films of the present invention may comprise a layer of metal oxide nanoparticles and, in some cases, may interact with an analyte to generate a detectable signal, whereby the presence and/or amount of analyte can be determined. In some embodiments, fluorescence resonance energy transfer (FRET) may occur between the luminescent film and the analyte. Such articles and methods may be useful in, for example, biological assays or in sensors.Type: ApplicationFiled: January 20, 2006Publication date: July 23, 2009Applicant: Agency for Science ,Technology and ResearchInventors: Jackie Y. Ying, Hsiao-Hua Yu, Emril Mohamed Ali
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Publication number: 20090184628Abstract: The present invention provides an organic light emitting device comprising: a substrate; a first conductive layer and a second conductive layer, which are sequentially positioned on the substrate; and at least one organic material layer, including a light emitting layer, which is interposed between the first conductive layer and the second conductive layer; wherein the organic light emitting device comprises a pattern layer formed corresponding to the light emitting region between at least one organic material layer and at least one conductive layer of the first conductive layer and the second conductive layer; charges are injected or transported between the conductive layer and the organic material layer through the pattern layer; and charges are not directly injected or transported in the region in which two layers each in contact with the upper surface and the lower surface of the pattern layer are directly in contact, and a method for preparation thereof.Type: ApplicationFiled: March 7, 2007Publication date: July 23, 2009Inventors: Min-Soo Kang, Jeoung-Kwen Noh, Jung-Hyoung Lee
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Patent number: 7563477Abstract: In a method for fabricating an organic electroluminescent display, a first electrode layer is formed on a transparent substrate, and a hole transport layer is formed on the first electrode layer. After an organic luminescent layer is formed on the hole transport layer by scanning a donor film disposed on the substrate using a laser beam, the donor film is removed and then a second electrode is formed on the organic luminescent layer. The laser beam dithers while performing the scanning operation to make the energy distribution uniform.Type: GrantFiled: June 7, 2005Date of Patent: July 21, 2009Assignee: Samsung Mobile Display Co., Ltd.Inventors: Seong Taek Lee, Jang Hyuk Kwon, Tae Min Kang, Joon Young Park
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Patent number: 7563147Abstract: A method for manufacturing an organic electroluminescent device having an organic functional layer formed between facing electrodes, the method includes forming separators which separate either of the electrodes into a strip, forming an electrode film between the separators with a vapor deposition method, and placing a further electrode material on the electrode film which is formed between the separators with the vapor deposition method.Type: GrantFiled: April 11, 2005Date of Patent: July 21, 2009Assignee: Seiko Epson CorporationInventors: Hirofumi Sakai, Kazunori Sakurai
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Publication number: 20090179189Abstract: The invention relates to a method for producing a layer structure in an electronic device, especially in an organic light emitting device, the method comprising a step of producing the layer structure as a composite layer structure with free charge carriers generated by charge transfer between a first material and a second material, wherein the composite layer structure is provided as a stack of at least three non-mixed sub-layers made of the first material and the second material, respectively, wherein within the stack of the at least three non-mixed sub-layers each first material sub-layer is followed by an adjacent second material sub-layer and each second material sub-layer is followed by an adjacent first material sub-layer, and wherein the first material and the second material are selected to form a host-dopant material system for the electrical doping. The invention also relates to an electronic device.Type: ApplicationFiled: October 23, 2006Publication date: July 16, 2009Applicant: NOVALED AGInventors: Ansgar Werner, Jan Blochwitz-Nimoth, Tobias Canzler
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Publication number: 20090181163Abstract: Disclosed herein is a method for producing display devices for forming deposited patterns conforming to pixels on a substrate by means of elongated evaporation sources and a deposition mask having regularly arranged apertures, the method including the steps of arranging the deposition mask and the substrate in such a way that the long sides of the apertures and pixels are parallel to the lengthwise direction of the evaporation sources irrespective of the direction in which the display panel regions are arranged within the substrate; and moving the substrate and the deposition mask relative to the evaporation sources, thereby forming the deposited patterns conforming to the pixels on the substrate.Type: ApplicationFiled: January 14, 2009Publication date: July 16, 2009Applicant: SONY CORPORATIONInventor: Naoki Uetake
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Publication number: 20090174315Abstract: This invention provides an organic electroluminescent element comprising two opposed electrodes connected to an external circuit for applying electrical energy, at least one of the electrodes being transparent or semitransparent, and provided between the electrodes, a plurality of luminescent units, for emitting light through recombination of holes with electrons, each comprising one or more organic layers, one of the organic layers being a luminescent layer, and a charge generation layer held between two of the plurality of luminescent units, characterized in that each two adjacent luminescent units in the plurality of luminescent units are partitioned by the charge generation layer, the charge generation layer comprises at least one metal or its compound (A) having a work function of not more than 3.0 eV and at least one compound (B) having a work function of not less than 4.0 eV, and in at least one of the plurality of luminescent units, the luminescent layer contains a polymeric luminescent material.Type: ApplicationFiled: February 6, 2007Publication date: July 9, 2009Applicant: SUMITOMO CHEMICAL COMPANY LIMITEDInventors: Yukio Furukawa, Teppei Yamada, Yoshinobu Ono
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Publication number: 20090174311Abstract: A method of forming an organic light emitting diode comprising the steps of: providing a substrate comprising a first electrode for injection of charge carriers of a first type; forming a charge transporting layer by depositing over the substrate a charge transporting material for transporting charge carriers of the first type, the charge transporting material being soluble in a solvent; treating the charge transporting layer to render it insoluble in the solvent; forming an electroluminescent layer by depositing onto the charge transporting layer a composition comprising the solvent, a phosphorescent material, and a host material; and depositing over the electroluminescent layer a second electrode for injection of charge carriers of a second type.Type: ApplicationFiled: December 20, 2004Publication date: July 9, 2009Applicant: CAMBRIDGE DISPLAY TECHNOLOGY LIMITEDInventors: Nalinkumar L. Patel, Natasha M. Conway, Mark Leadbeater, Ilaria Grizzi
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Publication number: 20090169809Abstract: An evaporation donor substrate that makes it possible to evaporate only a desired evaporation material in the case of performing deposition by an evaporation method. Thus, the use efficiency of an evaporation material can be increased resulting in reduction in production cost, and further a film with high uniformity can be deposited. The evaporation donor substrate can be obtained by forming a reflective layer having an opening over a substrate, forming a thermal insulation layer having a light-transmitting property separately over the substrate and the reflective layer, forming a light absorption layer over the thermal insulation layer, and forming a material layer over the light absorption layer.Type: ApplicationFiled: December 18, 2008Publication date: July 2, 2009Inventors: Kohei Yokoyama, Yosuke Sato, Tomoya Aoyama, Rena Takahashi
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Patent number: 7553208Abstract: A manufacturing method of organic electroluminescence display device according to the present invention performs (1) a first step for forming a non-affinity region in a surface of an anode provided in each of pixels arranged on a glass substrate by exposing the glass substrate in a saturated vapor pressure of an organic solvent, (2) a second step for forming an affinity region in a central portion of the anode surface spaced from its edges by irradiating the central portion of the anode surface with ultraviolet light, and (3) a third step for forming polymer material layers which constitute an organic electroluminescent element in the each of the pixels in the affinity region by blowing off polymer material solutions onto the affinity region of the anode in the each of the pixels, in this order, to simplify entire steps in, to reduce cost for, and to improve productivity of the manufacturing process of the organic electroluminescence display device thereby.Type: GrantFiled: December 15, 2006Date of Patent: June 30, 2009Assignee: Hitachi Displays, Ltd.Inventors: Akiko Yasukawa, Shoichi Uchino, Emiko Yamada, Nobuaki Hayashi
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Patent number: 7550173Abstract: Disclosed are a luminescent device and electric appliance which have low power consumption and a long life. An organic luminescent element is provided by a scheme that a region 204b where the concentrations of first and second organic compounds change gradually is provided in the organic compound layer 203b, a region 201b where the first organic compound can express its function is formed, and a region 202b where the second organic compound can express its function is formed. Thereby the functions of the individual materials are allowed to express. This scheme provides an organic luminescent element which has low power consumption and a long life. A luminescent device and electric appliance are manufactured by using the organic luminescent element.Type: GrantFiled: March 2, 2005Date of Patent: June 23, 2009Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Satoshi Seo, Shunpei Yamazaki