Multicolor Organic Light-emitting Device (oled) (epo) Patents (Class 257/E51.022)
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Publication number: 20110037071Abstract: A display device includes: a pixel including a plurality of light emitting elements each formed by sequentially stacking a first electrode layer, an organic layer, and a second electrode layer, spaced apart from each other in a first direction orthogonal to the stacking direction thereof, and emitting light emission colors different from each other; and an auxiliary wiring layer electrically connected to the second electrode layer. A plurality of the pixels are aligned in the first direction so as to include a gap which is larger than a gap between the light emitting elements adjacent to each other, and the auxiliary wiring layer is provided between the pixels adjacent to each other.Type: ApplicationFiled: August 3, 2010Publication date: February 17, 2011Applicant: SONY CORPORATIONInventor: Nobuo Ozawa
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Publication number: 20110037054Abstract: An active matrix organic light emitting display includes a plurality of pixels with each pixel including at least one organic light emitting diode circuit. Each diode circuit producing a predetermined amount of light lm in response to power W applied to the circuit and including n organic light emitting diodes cascaded in series so as to increase voltage dropped across the cascaded diodes by the factor of n, where n is an integer greater than one. Each diode of the n organic light emitting diodes produces approximately 1/n of the predetermined amount of light lm so as to reduce current flowing in the diodes by 1/n. The organic light emitting diode circuit of each pixel includes a thin film transistor current driver with the cascaded diodes connected in the source/drain circuit so the current driver provides the current flowing in the diodes.Type: ApplicationFiled: August 17, 2009Publication date: February 17, 2011Inventors: Chan-Long Shieh, Gang Yu
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Patent number: 7888688Abstract: A method and system for removing heat from an LED facilitates the fabrication of LEDs having enhanced brightness. A thermally conductive interposer can be attached to the top of the LED. Heat can flow through the top of the LED and into the interposer. The interposer can carry the heat away from the LED. Light can exit the LED though an at least partially transparent substrate of the LED. By removing heat from an LED, the use of more current through the LED is facilitated, thus resulting in a brighter LED.Type: GrantFiled: April 29, 2008Date of Patent: February 15, 2011Assignee: Bridgelux, Inc.Inventor: Wei Shi
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Publication number: 20110031479Abstract: An organic light emitting diode (OLED) display device and method of fabrication that includes a substrate having a device region, an outer dam region and an encapsulation region. The encapsulation region includes an inner dam region, an outer dam region and an encapsulation region that correspond to the device region. An encapsulation agent is formed in the encapsulation region of the encapsulation substrate, and filling dams are formed of the same material in the outer dam region and the inner dam region of the encapsulation substrate.Type: ApplicationFiled: June 30, 2010Publication date: February 10, 2011Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.Inventors: JI-HUN RYU, SEUNG-YONG SONG, YOUNG-SEO CHOI, OH-JUNE KWON, KWAN-HEE LEE
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Publication number: 20110031478Abstract: An organic light emitting diode (OLED) display device and a method of fabricating the same. The OLED display device includes a substrate having a pixel region and a non-pixel region, a buffer layer arranged on the substrate, a semiconductor layer arranged in the non-pixel region of the substrate, a first electrode arranged in the non-pixel region and in the pixel region and electrically connected to the semiconductor layer, a gate insulating layer arranged on an entire surface of the substrate and partially exposing the first electrode in the pixel region, a gate electrode arranged on the gate insulating layer to correspond to the semiconductor layer, a pixel defining layer partially exposing the first electrode, an organic layer arranged on the first electrode; and a second electrode arranged on the entire surface of the substrate.Type: ApplicationFiled: February 25, 2010Publication date: February 10, 2011Applicant: Samsung Mobile Display Co., Ltd.Inventors: Do-Hyun KWON, Choong-Youl IM, Dae-Hyun NO, Jong-Mo YEO, Ju-Won YOON, Song-Yi JEON, Il-Jeong LEE, Cheol-Ho YU
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Publication number: 20110031515Abstract: The organic light-emitting device of the present invention includes a plurality of organic light-emitting elements including an organic light-emitting element showing a first emission color and at least one organic light-emitting element showing a different emission color from the first emission color, each of the organic light-emitting elements including: a first electrode having a reflective surface; a second electrode placed on a light extraction side and including a semi-transparent layer; an organic compound layer including a light-emitting layer and formed between the first electrode and the second electrode; and a micro cavity structure for resonating light emitted from the light-emitting layer between the reflective surface and the semi-transparent layer, wherein the semi-transparent layer in the organic light-emitting element showing the first emission color is different in thickness and/or material from the semi-transparent layer in the at least one organic light-emitting element showing the differeType: ApplicationFiled: October 21, 2010Publication date: February 10, 2011Applicant: CANON KABUSHIKI KAISHAInventors: Nobutaka Mizuno, Koichi Fukuda
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Patent number: 7884370Abstract: A method for manufacturing an organic light emitting diode display includes disposing a crystalline semiconductor layer on a substrate, disposing a gate line, a driving input electrode, and a driving output electrode on the crystalline semiconductor layer, the gate line including a switching control electrode, patterning the crystalline semiconductor layer using the gate line, the driving input electrode, and the driving output electrode as a mask, disposing a gate insulating layer and an amorphous semiconductor layer on the gate line, the driving input electrode, and the driving output electrode, disposing a data line, a driving voltage line, a switching output electrode, and a driving control electrode on the amorphous semiconductor, the data line including a switching input electrode, disposing a pixel electrode connected to the driving output electrode, disposing a light emitting member on the pixel electrode, and disposing a common electrode on the light emitting member.Type: GrantFiled: July 3, 2007Date of Patent: February 8, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Jong-Moo Huh, Joon-Hoo Choi, Seung-Kyu Park, Byoung-Seong Jeong
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Patent number: 7875533Abstract: LED epitaxial layers (n-type, p-type, and active layers) are grown on a substrate. For each die, the n and p layers are electrically bonded to a package substrate that extends beyond the boundaries of the LED die such that the LED layers are between the package substrate and the growth substrate. The package substrate provides electrical contacts and conductors leading to solderable package connections. The growth substrate is then removed. Because the delicate LED layers were bonded to the package substrate while attached to the growth substrate, no intermediate support substrate for the LED layers is needed. The relatively thick LED epitaxial layer that was adjacent the removed growth substrate is then thinned and its top surface processed to incorporate light extraction features.Type: GrantFiled: February 9, 2009Date of Patent: January 25, 2011Assignees: Koninklijke Philips Electronics N.V., Philips Lumilieds Lighting Co., LLCInventors: John E. Epler, Paul S. Martin, Michael R. Krames
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Patent number: 7875895Abstract: An organic light emitting display includes a substrate, an OLED including an anode electrode, a cathode electrode and an organic thin film formed between the anode electrode and the cathode electrode, a reflective layer on the OLED, the reflective layer comprising a laminated first material and second material, the first material and the second material having different refractive indices, and an encapsulation layer on the reflective layer, the encapsulation layer comprising at least one of organic thin film and inorganic thin film.Type: GrantFiled: May 20, 2008Date of Patent: January 25, 2011Assignee: Samsung Mobile Display Co., Ltd.Inventors: Jin-ho Kwack, Young-shin Pyo
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Patent number: 7875889Abstract: Disclosed are an active matrix type organic electroluminescent display device and a manufacturing method thereof. At least two capacitors having different functions from each other are disposed in a vertically stacked structure within a unit pixel region. When a compensation circuit needing two or more capacitors having different functions from each other per pixel is applied, the two or more capacitors are vertically stacked, thereby preventing the aperture ratio from being lowered due to the increase in the number of capacitors within the pixel.Type: GrantFiled: September 11, 2008Date of Patent: January 25, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Beom-Rak Choi, Joon-Hoo Choi, Chong-Chul Chai
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Patent number: 7871714Abstract: A novel electroluminescent polymer is represented by the following formula. A film of the polymer represented by the following formula can be formed by electrolytic polymerization, and farther emits light in a different color by an electric field when a substituent thereof is changed. Therefore, a light-emitting device that is capable of multicolor displaying can be easily obtained.Type: GrantFiled: December 19, 2008Date of Patent: January 18, 2011Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Takako Takasu, Satoshi Seo, Ryoji Nomura
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Patent number: 7872256Abstract: An organic light emitting display that includes a substrate, a plurality of first electrodes arranged in a corresponding plurality of pixels, the plurality of pixels including red pixels, blue pixels and green pixels, a hole injection layer arranged on the first electrodes arranged on the substrate, the hole injection layer having different respective thicknesses in correspondence with the pixels, a hole transport layer entirely covering the hole injection layer, a white light emitting layer entirely covering the hole transport layer, an electron transport layer arranged on the white light emitting layer, a second electrode arranged on the electron transport layer and a color filter arranged on the second electrode.Type: GrantFiled: March 26, 2007Date of Patent: January 18, 2011Assignee: Samsung Mobile Display Co., Ltd.Inventors: Yeun-Joo Sung, Hee-Seong Jeong, Byeong-Wook Yoo, Jun-Sik Oh, Sam-Il Kho
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Publication number: 20110006327Abstract: An organic light emitting diode (OLED) display according to an exemplary embodiment includes a substrate main body, a plurality of organic light emitting elements formed on the substrate main body, an encapsulation thin film formed on the substrate main body thereby covering the plurality of organic light emitting elements, and a disparity barrier rib layer formed on a boundary region between the plurality of organic light emitting elements.Type: ApplicationFiled: June 29, 2010Publication date: January 13, 2011Applicant: Samsung Mobile Display Co., Ltd.Inventors: Chan-Young Park, Beom-Shik Kim, Hui Nam
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Patent number: 7868331Abstract: Disclosed herein is a light-emitting device comprising a transparent or semi-transparent first substrate, a second substrate provided opposite to the first substrate, a transparent or semi-transparent first electrode provided on the first substrate, a second electrode provided on the second substrate so as to be opposite to the first electrode, and a light-emitting layer which contains a metal oxide semiconductor porous body, by the surface of which an organic light-emitting material is supported, and is provided between the first electrode and the second electrode.Type: GrantFiled: June 10, 2004Date of Patent: January 11, 2011Assignee: Panasonic CorporationInventors: Masayuki Ono, Kenya Hori, Toshiyuki Aoyama, Masaru Odagiri, Kumio Nago, Kenji Hasegawa
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Publication number: 20110003419Abstract: A laser induced thermal imaging apparatus and a fabricating method of organic light emitting diodes using the same, which laminate an acceptor substrate and a donor film using a magnetic force in vacuum, and are used to form a pixel array on the acceptor substrate. A substrate stage includes a magnet or magnetic substance. The acceptor substrate has a pixel region for forming first, second, and third sub-pixels, and the donor film has an organic light emission layer to be transferred to the pixel region. A laser oscillator irradiates a laser to the donor film. A contact frame is adapted to be disposed between the substrate stage and the laser oscillator, and is used to form a magnetic force with the substrate stage. The contact frame includes an opening through which the laser passes. A contact frame feed mechanism moves the contact frame in a direction of the substrate stage.Type: ApplicationFiled: September 14, 2010Publication date: January 6, 2011Inventors: Sok Won Noh, Seong Taek Lee, Mu Hyun Kim, Myung Won Song, Sun Hoe Kim, Jin Wook Seong
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Patent number: 7862909Abstract: An organic electroluminescent element comprising an anode and a cathode having therebetween an emission layer containing a phosphorescent compound and an layer adjacent to the emission layer, the layer adjacent to the emission layer being provided between the emission layer and the cathode, wherein the layer adjacent to the emission layer comprises a compound having an electron withdrawing group; and the compound exhibits a HOMO level of ?5.7 to ?7.0 eV and a LUMO level of ?1.3 to ?2.3 eV.Type: GrantFiled: April 10, 2008Date of Patent: January 4, 2011Assignee: Konica Minolta Holdings, Inc.Inventors: Tomohiro Oshiyama, Hiroshi Kita, Eisaku Katoh
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Patent number: 7863632Abstract: An organic light emitting device consists of a layered structure including a top multilayer stack, a bottom multilayer stack, a cavity layer between the top multilayer stack and the bottom multilayer stack, and an organic light emitting region within the cavity layer. The layered structure is constructed such that the product of phase factors ?1 and ?2 is.Type: GrantFiled: August 23, 2004Date of Patent: January 4, 2011Assignee: National Research Council of CanadaInventors: Li Li, Jerzy Dobrowolski, Daniel Poitras
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Publication number: 20100327263Abstract: A method and device in which the light emitted from a color sub-pixel in an organic light emitted display panel can be the sum of two or more light beams of slightly different colors in the same wavelength range. The difference in color is the result of difference in the length of the resonant cavity within the same color sub-pixel. In the manufacturing process, the non-uniformity in the layer thickness can cause a shift in the color coordinates in the color sub-pixels. The color shift when the width of the color spectrum is narrow is more noticeable. By broadening the width of the color spectrum, the color shift would become less appreciable. Thus, broadening the width of the color spectrum would ease the strict requirements in manufacturing.Type: ApplicationFiled: June 24, 2009Publication date: December 30, 2010Inventors: Hao-Wu Lin, Shih-Feng Hsu
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Publication number: 20100327297Abstract: An organic EL display panel comprising a substrate and an organic light-emitting element R emitting red light, an organic light-emitting element G emitting green light and an organic light-emitting element B emitting blue light which are arranged on the substrate, wherein each of the organic light-emitting element has a concavely curved pixel electrode which is a reflective electrode, a functional layer formed with coating over the pixel electrode, an organic light emitting layer arranged on the functional layer, a counter electrode which is a transparent electrode arranged over the organic light emitting layer and a bank defining the functional layer formed with coating, the element R, the element G and the element B have different amount of the functional layer and the element R, the element G and the element B have different curvature radius of the concavely curved pixel electrode.Type: ApplicationFiled: June 21, 2010Publication date: December 30, 2010Applicant: PANASONIC CORPORATIONInventors: Hidehiro YOSHIDA, Kenji OKUMOTO
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Patent number: 7858976Abstract: The invention relates to a method of making an organic electronic device and articles.Type: GrantFiled: June 4, 2008Date of Patent: December 28, 2010Assignee: 3M Innovative Properties CompanyInventors: Raghunath Padiyath, Jon E. Ottman, David A. Engler, Fred B. McCormick, Donald J. McClure, Brian J. Gates
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Patent number: 7859001Abstract: A semiconductor light emitting apparatus can include a housing filled with a wavelength conversion material-containing resin material which seals a semiconductor light emitting device inside the recess of the housing. A transparent resin material can be charged on the wavelength conversion material-containing resin material, and can be configured to prevent the resin materials from being detached from each other or from other portions, such as a housing. Furthermore, such a semiconductor light emitting apparatus can emit light with less color unevenness. The housing can include a first recessed portion and a second recessed portion. The second recessed portion can have a larger diameter than the first recessed portion so as to form a stepped area at the boundary therebetween. The first recessed portion is filled with the wavelength conversion material-containing resin material as a first resin.Type: GrantFiled: August 7, 2008Date of Patent: December 28, 2010Assignee: Stanley Electric Co., Ltd.Inventors: Wakako Niino, Masami Kumei, Toshimi Kamikawa, Takashi Ebisutani
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Publication number: 20100314614Abstract: A method of manufacturing an organic thin film transistor, comprising: providing a substrate comprising source and drain electrodes defining a channel region; subjecting at least the channel region to a cleaning treatment step; and depositing organic semiconductive material from solution into the channel region by inkjet printing.Type: ApplicationFiled: December 17, 2008Publication date: December 16, 2010Applicant: CAMBRIDGE DISPLAY TECHNOLOGY LIMITEDInventors: Mark Bale, Craig Murphy
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Publication number: 20100314644Abstract: An organic electroluminescence device including opposite anode and cathode, and a hole-transporting region, an emitting layer and an electron-transporting region in sequential order from the anode between the anode and the cathode, wherein the emitting layer is formed of a red emitting layer, a green emitting layer, and blue emitting layer; the blue emitting layer contains a host BH and a fluorescent dopant FBD; the triplet energy ETfbd of the fluorescent dopant FBD is larger than the triplet energy ETbh of the host BH; the green emitting layer contains a host GH and a phosphorescent dopant PGD; a common electron-transporting layer is provided adjacent to the red emitting layer, the green emitting layer and the blue emitting layer within the electron-transporting region; the triplet energy ETel of a material constituting the electron-transporting layer is larger than ETbh; and the difference between the affinity of the host GH and the affinity of the material constituting the electron-transporting layer is 0.Type: ApplicationFiled: June 18, 2009Publication date: December 16, 2010Applicant: IDEMITSU KOSAN CO., LTD.Inventors: Kazuki Nishimura, Yuichiro Kawamura, Toshinari Ogiwara, Hitoshi Kuma, Kenichi Fukuoka, Chishio Hosokawa
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Patent number: 7851797Abstract: There is a problem in that, in a liquid crystal display panel in which a color filter is formed on an opposing substrate, it is necessary to assemble an element substrate and the opposing substrate by extremely high precision position alignment, and when this precision is low, the aperture ratio decreases and the display becomes darker. With the present invention, red color filters (R) are formed on driving circuits (402, 403), peripheral circuits, and a color filter (405d) for protecting a pixel TFT portion (407) is formed for each pixel.Type: GrantFiled: August 26, 2004Date of Patent: December 14, 2010Assignee: Semiconductor Energy laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Hideaki Kuwabara
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Publication number: 20100308321Abstract: Disclosed is a laminated structure, including a substrate, a wettability changing layer on the substrate, the wettability changing layer including a material, a critical surface tension of the material being changed by providing energy thereto, and an electrically conductor layer on the substrate, the electrically conductor layer formed on a region of the wettability changing layer, the region being provided with the energy, wherein the material includes a structural unit including a side chain and a structural unit including no side chain.Type: ApplicationFiled: February 3, 2009Publication date: December 9, 2010Applicant: RICOH COMPANY, LTDInventors: Takanori Tano, Koei Suzuki, Yusuke Tsuda
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Publication number: 20100308313Abstract: [Object] To provide a wide band-gap material capable of forming a stable amorphous thin film and an organic electroluminescent device using such a compound and having a high light emission efficiency. [Solution] It has been found that a novel oligophenylene derivative, which is applicable as an organic electroluminescent material, can be produced efficiently using a cross-coupling reaction. It has also been found that a highly-efficient blue phosphorescent light-emitting device can be produced using this compound. The present invention is based on these findings.Type: ApplicationFiled: December 19, 2008Publication date: December 9, 2010Inventors: Shigehiro Yamaguchi, Atsushi Wakamiya, Chihaya Adachi, Masayuki Yahiro, Ayataka Endo, Toshihisa Ide, Masutaka Shinmen
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Patent number: 7847286Abstract: A semiconductor device with a substrate, a first electrode on the substrate, at least one of an injection layer or a transporting layer on the first electrode, an adhesion layer on the at least one of an injection layer or a transporting layer, and a second electrode on the adhesion layer.Type: GrantFiled: November 3, 2009Date of Patent: December 7, 2010Assignee: LG Electronics Inc.Inventors: Jong Geun Yoon, Myung Seop Kim, Hyoung Yun Oh, Sung Tae Kim
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Publication number: 20100301322Abstract: A novel stilbene derivative is provided with motivation of providing a blue emissive material showing excellent color purity. The use of the stilbene derivative of the present invention allows the fabrication of a blue-emissive light-emitting element with excellent color purity. The invention also includes an electronic device equipped with a display portion in which the stilbene derivative is employed. The stilbene derivative of the present invention is represented by formula (1), in which Ar1 and Ar2 may form a 5-membered ring by being directly bonded to each other. In formula (1), A11 represents any one of substituents represented by general formulas (1-1) to (1-3). The variables shown in formula (1) and (1-1) to (1-3) are as defined in the specification.Type: ApplicationFiled: June 7, 2010Publication date: December 2, 2010Inventors: Masakazu Egawa, Harue Osaka, Sachiko Kawakami, Nobuharu Ohsawa, Satoshi Seo, Ryoji Nomura
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Publication number: 20100301324Abstract: An organic electro-luminescent display and a method of fabricating the same include an organic light emitting diode, a driving transistor which drives the organic light emitting diode, and a switching transistor which controls an operation of the driving transistor, wherein active layers of the switching and driving transistors are crystallized using silicides having different densities such that the active layer of the driving transistor has a larger grain size than the active layer of the switching layer.Type: ApplicationFiled: August 13, 2010Publication date: December 2, 2010Applicant: Samsung Electronics Co., Ltd.Inventors: Ji-sim JUNG, Jong-man KIM, Jang-yeon KWON, Kyung-bae PARK
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Patent number: 7842947Abstract: Disclosed is an organic EL display panel which includes: a substrate; a linear first bank which is disposed over the substrate and defines a linear region; a second bank which defines two or more pixel regions arranged in the linear region; a pixel electrode disposed in the pixel region; a linear organic layer which is formed by coating method in the linear region over the pixel electrode and second bank; and a counter electrode over the organic layer, wherein the first bank is larger in height than the second bank, the first and second banks are made of resin, anisole contact angle at the top of the first bank is 30-60°, and anisole contact angle at the top of the second bank is 5-30°.Type: GrantFiled: June 2, 2009Date of Patent: November 30, 2010Assignee: Panasonic CorporationInventors: Shuhei Nakatani, Hidehiro Yoshida, Kiyohiko Takagi
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Publication number: 20100295027Abstract: An organic electroluminescence device includes: an anode; a cathode; and an organic thin-film layer provided between the anode and the cathode and including at least three emitting layers. The organic thin-film layer includes: a first emitting layer adjacent to the anode; a second emitting layer adjacent to the cathode; and a third emitting layer interposed between the first emitting layer and the second emitting layer. The first emitting layer, the second emitting layer and the third emitting layer contain phosphorescent dopants. The first emitting layer and the second emitting layer use fused polycyclic aromatic derivatives as host materials.Type: ApplicationFiled: August 21, 2009Publication date: November 25, 2010Applicant: Idemitsu Kosan Co., Ltd.Inventors: Yuichiro Kawamura, Kazuki Nishimura, Yukitoshi Jinde, Hitoshi Kuma, Toshinari Ogiwara
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Publication number: 20100295828Abstract: An OLED display for improving white light emitting efficiency and simplifying a manufacturing process includes a plurality of pixels, each of the pixels having a transistor unit, a color filter unit and an organic light emitting device unit. The transistor unit converts signals from the outside into driving signals for driving an organic light emitting device unit. The organic light emitting device unit is composed of blue, red and green emission layers each having different areas. By passing white light through a color filer, the OLED display can realize full color.Type: ApplicationFiled: August 2, 2010Publication date: November 25, 2010Applicant: SAMSUNG ELECTRONICS CO., LTDInventors: Un-Cheol SUNG, Joo-Hyeon LEE
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Publication number: 20100295085Abstract: An organic electroluminescent element comprising: an anode; a cathode; and a light emitting unit arranged between the anode and the cathode and having three or more light emitting layers each containing a polymer compound, wherein the light emitting layers constituting the light emitting unit emit lights differing from each other in peak wavelength, and a light emitting layer that emits a light with a longer peak wavelength is located closer to the anode.Type: ApplicationFiled: January 21, 2009Publication date: November 25, 2010Inventor: Shin-ya Tanaka
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Publication number: 20100295026Abstract: Disclosed is an organic electroluminescent element containing organic layers sandwiched between an anode and a cathode, wherein the organic layers incorporates an emission layer A containing a host compound A and at least two types of emission dopants, and an emission layer B containing a host compound B and at least one type of emission dopant, provided that at least one of the emission dopants contained in the emission layer A is a phosphorescence-emitting material.Type: ApplicationFiled: November 7, 2006Publication date: November 25, 2010Applicant: KONICA MINOLTA HOLDINGS, INC.Inventors: Aki Tsuji, Hiroshi Kita, Yoshiyuki Suzuri
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Publication number: 20100295035Abstract: To increase the proportion of the perfects to the whole lot of final products and to reduce the cost for active matrix EL display devices by checking the operation of a TFT substrate before depositing an EL material. A capacitor for testing is connected to a drain terminal of a driving TFT in a pixel portion to observe charging and discharging of the capacitor. Whether the driving TFT is normal or not is judged by the observation, so that the rejects can be removed before the manufacturing process is completed.Type: ApplicationFiled: August 2, 2010Publication date: November 25, 2010Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.Inventor: Jun Koyama
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Patent number: 7838880Abstract: A flat panel display device that includes a clad unit that may prevent terminals of a pad unit from becoming corroded or damaged by an etching solution during etching. The flat panel display device may include a display unit, a pad unit which may include a plurality of terminals electrically connecting the display unit to external devices, and a clad unit which may cover at least side end portions of the terminals, in which the clad unit may be composed of an insulating material.Type: GrantFiled: September 29, 2006Date of Patent: November 23, 2010Assignee: Samsung Mobile Display Co., Ltd.Inventors: Won-Kyu Kwak, Byung-Hee Kim, Sang-Won Lee, In-Young Jung, Myung-Sup Kim
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Publication number: 20100289017Abstract: Disclosed is an organic light emitting diode, which has improved light transmittance and which includes a first substrate and a second substrate, a first electrode formed on the first substrate, an organic layer formed on the first electrode, a second electrode formed between the organic layer and the second substrate, and an antireflective layer formed on at least one surface of at least one of the first substrate and the second substrate and having a predetermined refractive index, so that the formation of the antireflective layer on any outer surface of at least one of the first substrate and the second substrate results in increased transmittance, thus improving reliability of products. A method of manufacturing the organic light emitting diode is also provided.Type: ApplicationFiled: May 13, 2010Publication date: November 18, 2010Applicant: NEOVIEWKOLON CO., LTD.Inventors: Young-Bo Ha, Eun-Chul Shin, Young-Eun Kim, Woo-Bin Im, Hyun-Sik Park
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Publication number: 20100291720Abstract: A method of fabricating an organic light emitting diode display device includes: sequentially forming a thin film transistor (TFT) array, a first electrode, a bank pattern, a spacer, and a first relevant layer on an acceptor substrate; sequentially forming a metal pattern and an organic light emission material layer on a doner substrate; aligning and attaching the acceptor substrate and the doner substrate, and forming the light emission layer by transferring the organic light emission material onto the acceptor substrate by applying power to the metal pattern; and sequentially forming the second relevant layer and the second electrode on the light emission layer-formed acceptor substrate.Type: ApplicationFiled: November 12, 2009Publication date: November 18, 2010Inventors: Woochan Kim, Byungchul Ahn, Changwook Han
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Publication number: 20100289016Abstract: Disclosed is an organic light emitting diode, in which the light transmittance of a transparent cathode is improved, and which includes a substrate, a first electrode formed on the substrate, an organic layer formed on the first electrode, a second electrode formed on the organic layer, and a transparent layer formed at either one or both of a position between the organic layer and the second electrode and a position on the upper surface of the second electrode and including any one selected from among an oxide, a nitride, a salt and mixtures thereof, so that the formation of the transparent layer on the cathode results in increased light transmittance and decreased resistance, thereby improving electrical performance of products. A method of manufacturing the organic light emitting diode is also provided.Type: ApplicationFiled: May 13, 2010Publication date: November 18, 2010Applicant: NEOVIEWKOLON CO., LTD.Inventors: Young-Bo Ha, Eun-Chul Shin, Young-Eun Kim, Woo-Bin Im, Hyun-Sik Park
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Publication number: 20100288362Abstract: The invention provides an electronic device including an anode and a cathode, between which there are at least two organic phototransducing units where the units are separated by an intermediate connecting region which comprises in sequence: an organic p-type layer, an intermediate layer in direct contact with the organic p-type layer and including a compound that has a LUMO more negative than ?3.0 eV and is different from the organic compound in the organic p-type layer, and an n-type doped organic layer in direct contact with the intermediate layer and including an electron transport material as a host and an organic n-dopant with a HOMO less negative than ?4.5 eV. In one embodiment, the electronic device is a tandem OLED.Type: ApplicationFiled: May 13, 2009Publication date: November 18, 2010Inventors: Tukaram K. Hatwar, Jeffrey P. Spindler, Denis Y. Kondakov, Steven A. Van Slyke, Sven Z. Murano, Gufeng He
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Publication number: 20100289010Abstract: The present invention relates to a method capable of considerably improving the characteristics of an organic electroluminescent device. The present invention provides a method capable of reducing operating voltage and improving efficiency by inserting an inorganic oxide interlayer configured of at least one layer between light-emitting layers.Type: ApplicationFiled: August 13, 2007Publication date: November 18, 2010Applicant: INKTEC CO., LTD.Inventors: Hyun-Nam Cho, Ji-Hoon Yoo, Kwang-Choon Chung
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Patent number: 7829888Abstract: An OLED display device includes a plurality of pixels including sub-pixels arranged along a first direction, the sub-pixels being arranged in an order emitting red, blue, and green lights along the first direction or in a reverse order, wherein an arrangement of colors of light emitted from sub-pixels of one pixel is symmetrical to an arrangement of colors of light emitted from sub-pixels of an adjacent pixel, and wherein a light emitting layer of the sub-pixel emitting red light includes a light emitting layer emitting red light and a light emitting layer emitting blue light, a light emitting layer of the sub-pixel emitting blue light includes a light emitting layer emitting blue light, and a light emitting layer of the sub-pixel emitting green light includes a light emitting layer emitting green light and a light emitting layer emitting blue light.Type: GrantFiled: June 11, 2009Date of Patent: November 9, 2010Assignee: Samsung Mobile Display Co., Ltd.Inventors: Seung Wook Chang, Mu-Hyun Kim
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Patent number: 7829887Abstract: An OLED display device includes a plurality of pixels including sub-pixels arranged along a first direction, the sub-pixels being arranged in an order emitting red, green, and blue lights along the first direction or in a reverse order, wherein an arrangement of colors of light emitted from sub-pixels of one pixel is symmetrical to an arrangement of colors of light emitted from sub-pixels of an adjacent pixel, and wherein a light emitting layer of the sub-pixel emitting red light includes a light emitting layer emitting red light and a light emitting layer emitting green light, a light emitting layer of the sub-pixel emitting green light includes a light emitting layer emitting green light, and a light emitting layer of the sub-pixel emitting blue light includes a light emitting layer emitting blue light and a light emitting layer emitting green light.Type: GrantFiled: June 11, 2009Date of Patent: November 9, 2010Assignee: Samsung Mobile Display Co., Ltd.Inventors: Seung Wook Chang, Mu-Hyun Kim
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Publication number: 20100276680Abstract: An Organic Light Emitting Display (OLED) and its fabrication method has a pixel defining layer provided on a first electrode which is formed with a gas vent groove to allow gas to vent when the pixel defining layer is being formed, so that gas is not left in a pixel but vented when a donor film is laminated by a Laser-Induced Thermal Imaging (LITI) method, thereby decreasing edge open failures.Type: ApplicationFiled: July 13, 2010Publication date: November 4, 2010Applicant: Samsung Mobile Display Co., Ltd.Inventors: Tae-Min Kang, Seong-Taek Lee, Myung-Won Song, Mu-Hyun Kim, Byung-Doo Chin, Jae-Ho Lee
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Publication number: 20100276671Abstract: A pixel for an organic light emitting diode (OLED) display and a method for forming such a pixel is provided. The pixel includes a substrate, a transistor formed over the substrate, and an OLED formed over the substrate. The transistor includes a gate, a source, and a drain. The OLED includes an anode, an emissive layer formed over the anode, and a cathode formed over the emissive layer. The cathode is electrically connected to the drain of the transistor.Type: ApplicationFiled: April 29, 2009Publication date: November 4, 2010Applicant: HONEYWELL INTERNATIONAL INC.Inventor: Kalluri R. Sarma
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Publication number: 20100276677Abstract: Disclosed is an organic light-emitting device (OLED), wherein a lower electrode, an organic emitting unit, an upper electrode, and a light enhance layer are subsequently formed between a bottom substrate and a top substrate. The light enhance layer has higher refractive index, between 2 and 3, than that of the top substrates, thereby efficiently improving the luminance intensity of the OLED.Type: ApplicationFiled: April 29, 2010Publication date: November 4, 2010Applicant: CHIMEI INNOLUX CORPORATIONInventors: Hsiang-Lun Hsu, Hsin-Yuan Su
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Publication number: 20100270538Abstract: Provided are an organic light emitting display device and a method of manufacturing the same. The organic light emitting display device includes a substrate; at least one thin film transistor including a gate electrode including a metal oxide layer and a metal layer, a semiconductor layer including source/drain regions and a channel layer; at least one capacitor including a first electrode formed on a layer on which the gate electrode is formed by using a material forming the gate electrode, and a second electrode formed on a layer on which the source/drain electrodes are formed by using a material used to form the source/drain electrodes; and at least one organic light emitting device including a pixel electrode formed on a layer on which the gate electrode is formed by using a material used to form the gate electrode and connected to the source/drain electrodes via a contact hole.Type: ApplicationFiled: April 23, 2010Publication date: October 28, 2010Applicant: Samsung Mobile Display Co., LtdInventor: Jin-Kyu Kang
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Publication number: 20100270541Abstract: A system for displaying images including a display panel and a fabrication method thereof are provided. The display panel includes a substrate having a first, second and third areas, a first patterned semiconductor layer disposed over the first area of the substrate, a first insulating layer covering the first patterned semiconductor layer and the first, the second and the third areas of the substrate, a second patterned semiconductor layer disposed on the first insulating layer of the first and the third areas respectively, a second insulating layer covering the second patterned semiconductor layer and the first insulating layer, and a patterned conductive layer disposed on the second insulating layer to form a first thin-film transistor at the first area and a second thin-film transistor at the third area.Type: ApplicationFiled: April 20, 2010Publication date: October 28, 2010Applicant: CHIMEI INNOLUX CORPORATIONInventors: Yu-Chung Liu, Te-Yu Lee, Mei-Ling Chang
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Patent number: 7821094Abstract: A light emitting diode structure has a silicon substrate, a conductive layer, and a light emitting diode. The top surface of the silicon substrate has a cup-structure like paraboloid, and the bottom of the cup-structure has a plurality of through-holes penetrating the silicon substrate. The conductive layer fills up the through-holes and protrudes out from the through-holes. The light emitting diode is disposed on the top of the conductive layer protruding out from the through-holes and is located at the focus of the cup-structure.Type: GrantFiled: October 8, 2008Date of Patent: October 26, 2010Assignee: Touch Micro-System Technology Inc.Inventors: Hung-Yi Lin, Hong-Da Chang
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Publication number: 20100265236Abstract: This invention relates to organic light-emitting devices (OLEDs) and displays comprising such OLEDs suitable to be operated analogue to a transistor, and to methods to operate such OLEDs and displays, where the organic light-emitting device comprises at least one organic light-emitting layer (3) as a collector layer arranged between a first electrode (1) and a second electrode (2), where at least, but not limited to the first electrode (1) comprises an first emitter layer (1E) and a first base layer (1B) arranged between the first emitter layer (2E) and the collector layer (3). In case of a display device, the first emitting layer (1E) and the first base layer (1B) are structured in order to form an array of pixels (4) of first electrodes (1) suitable to be operated separately by an operation unit (5) suitable in a forward bias mode or a reverse bias mode in order to switch light emission of the EL-layer above each pixel on/off.Type: ApplicationFiled: December 10, 2008Publication date: October 21, 2010Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.Inventors: Hans-Peter Loebl, Holger Kalisch, Frank Otto Jessen, Christoph Zimmermann