Multicolor Organic Light-emitting Device (oled) (epo) Patents (Class 257/E51.022)
  • Publication number: 20110037071
    Abstract: 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: Application
    Filed: August 3, 2010
    Publication date: February 17, 2011
    Applicant: SONY CORPORATION
    Inventor: Nobuo Ozawa
  • Publication number: 20110037054
    Abstract: 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: Application
    Filed: August 17, 2009
    Publication date: February 17, 2011
    Inventors: Chan-Long Shieh, Gang Yu
  • Patent number: 7888688
    Abstract: 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: Grant
    Filed: April 29, 2008
    Date of Patent: February 15, 2011
    Assignee: Bridgelux, Inc.
    Inventor: Wei Shi
  • Publication number: 20110031479
    Abstract: 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: Application
    Filed: June 30, 2010
    Publication date: February 10, 2011
    Applicant: SAMSUNG MOBILE DISPLAY CO., LTD.
    Inventors: JI-HUN RYU, SEUNG-YONG SONG, YOUNG-SEO CHOI, OH-JUNE KWON, KWAN-HEE LEE
  • Publication number: 20110031478
    Abstract: 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: Application
    Filed: February 25, 2010
    Publication date: February 10, 2011
    Applicant: 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
  • Publication number: 20110031515
    Abstract: 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 differe
    Type: Application
    Filed: October 21, 2010
    Publication date: February 10, 2011
    Applicant: CANON KABUSHIKI KAISHA
    Inventors: Nobutaka Mizuno, Koichi Fukuda
  • Patent number: 7884370
    Abstract: 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: Grant
    Filed: July 3, 2007
    Date of Patent: February 8, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Jong-Moo Huh, Joon-Hoo Choi, Seung-Kyu Park, Byoung-Seong Jeong
  • Patent number: 7875533
    Abstract: 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: Grant
    Filed: February 9, 2009
    Date of Patent: January 25, 2011
    Assignees: Koninklijke Philips Electronics N.V., Philips Lumilieds Lighting Co., LLC
    Inventors: John E. Epler, Paul S. Martin, Michael R. Krames
  • Patent number: 7875895
    Abstract: 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: Grant
    Filed: May 20, 2008
    Date of Patent: January 25, 2011
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Jin-ho Kwack, Young-shin Pyo
  • Patent number: 7875889
    Abstract: 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: Grant
    Filed: September 11, 2008
    Date of Patent: January 25, 2011
    Assignee: Samsung Electronics Co., Ltd.
    Inventors: Beom-Rak Choi, Joon-Hoo Choi, Chong-Chul Chai
  • Patent number: 7871714
    Abstract: 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: Grant
    Filed: December 19, 2008
    Date of Patent: January 18, 2011
    Assignee: Semiconductor Energy Laboratory Co., Ltd.
    Inventors: Takako Takasu, Satoshi Seo, Ryoji Nomura
  • Patent number: 7872256
    Abstract: 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: Grant
    Filed: March 26, 2007
    Date of Patent: January 18, 2011
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Yeun-Joo Sung, Hee-Seong Jeong, Byeong-Wook Yoo, Jun-Sik Oh, Sam-Il Kho
  • Publication number: 20110006327
    Abstract: 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: Application
    Filed: June 29, 2010
    Publication date: January 13, 2011
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Chan-Young Park, Beom-Shik Kim, Hui Nam
  • Patent number: 7868331
    Abstract: 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: Grant
    Filed: June 10, 2004
    Date of Patent: January 11, 2011
    Assignee: Panasonic Corporation
    Inventors: Masayuki Ono, Kenya Hori, Toshiyuki Aoyama, Masaru Odagiri, Kumio Nago, Kenji Hasegawa
  • Publication number: 20110003419
    Abstract: 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: Application
    Filed: September 14, 2010
    Publication date: January 6, 2011
    Inventors: Sok Won Noh, Seong Taek Lee, Mu Hyun Kim, Myung Won Song, Sun Hoe Kim, Jin Wook Seong
  • Patent number: 7862909
    Abstract: 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: Grant
    Filed: April 10, 2008
    Date of Patent: January 4, 2011
    Assignee: Konica Minolta Holdings, Inc.
    Inventors: Tomohiro Oshiyama, Hiroshi Kita, Eisaku Katoh
  • Patent number: 7863632
    Abstract: 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: Grant
    Filed: August 23, 2004
    Date of Patent: January 4, 2011
    Assignee: National Research Council of Canada
    Inventors: Li Li, Jerzy Dobrowolski, Daniel Poitras
  • Publication number: 20100327263
    Abstract: 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: Application
    Filed: June 24, 2009
    Publication date: December 30, 2010
    Inventors: Hao-Wu Lin, Shih-Feng Hsu
  • Publication number: 20100327297
    Abstract: 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: Application
    Filed: June 21, 2010
    Publication date: December 30, 2010
    Applicant: PANASONIC CORPORATION
    Inventors: Hidehiro YOSHIDA, Kenji OKUMOTO
  • Patent number: 7858976
    Abstract: The invention relates to a method of making an organic electronic device and articles.
    Type: Grant
    Filed: June 4, 2008
    Date of Patent: December 28, 2010
    Assignee: 3M Innovative Properties Company
    Inventors: Raghunath Padiyath, Jon E. Ottman, David A. Engler, Fred B. McCormick, Donald J. McClure, Brian J. Gates
  • Patent number: 7859001
    Abstract: 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: Grant
    Filed: August 7, 2008
    Date of Patent: December 28, 2010
    Assignee: Stanley Electric Co., Ltd.
    Inventors: Wakako Niino, Masami Kumei, Toshimi Kamikawa, Takashi Ebisutani
  • Publication number: 20100314614
    Abstract: 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: Application
    Filed: December 17, 2008
    Publication date: December 16, 2010
    Applicant: CAMBRIDGE DISPLAY TECHNOLOGY LIMITED
    Inventors: Mark Bale, Craig Murphy
  • Publication number: 20100314644
    Abstract: 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: Application
    Filed: June 18, 2009
    Publication date: December 16, 2010
    Applicant: IDEMITSU KOSAN CO., LTD.
    Inventors: Kazuki Nishimura, Yuichiro Kawamura, Toshinari Ogiwara, Hitoshi Kuma, Kenichi Fukuoka, Chishio Hosokawa
  • Patent number: 7851797
    Abstract: 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: Grant
    Filed: August 26, 2004
    Date of Patent: December 14, 2010
    Assignee: Semiconductor Energy laboratory Co., Ltd.
    Inventors: Shunpei Yamazaki, Hideaki Kuwabara
  • Publication number: 20100308321
    Abstract: 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: Application
    Filed: February 3, 2009
    Publication date: December 9, 2010
    Applicant: RICOH COMPANY, LTD
    Inventors: Takanori Tano, Koei Suzuki, Yusuke Tsuda
  • Publication number: 20100308313
    Abstract: [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: Application
    Filed: December 19, 2008
    Publication date: December 9, 2010
    Inventors: Shigehiro Yamaguchi, Atsushi Wakamiya, Chihaya Adachi, Masayuki Yahiro, Ayataka Endo, Toshihisa Ide, Masutaka Shinmen
  • Patent number: 7847286
    Abstract: 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: Grant
    Filed: November 3, 2009
    Date of Patent: December 7, 2010
    Assignee: LG Electronics Inc.
    Inventors: Jong Geun Yoon, Myung Seop Kim, Hyoung Yun Oh, Sung Tae Kim
  • Publication number: 20100301322
    Abstract: 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: Application
    Filed: June 7, 2010
    Publication date: December 2, 2010
    Inventors: Masakazu Egawa, Harue Osaka, Sachiko Kawakami, Nobuharu Ohsawa, Satoshi Seo, Ryoji Nomura
  • Publication number: 20100301324
    Abstract: 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: Application
    Filed: August 13, 2010
    Publication date: December 2, 2010
    Applicant: Samsung Electronics Co., Ltd.
    Inventors: Ji-sim JUNG, Jong-man KIM, Jang-yeon KWON, Kyung-bae PARK
  • Patent number: 7842947
    Abstract: 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: Grant
    Filed: June 2, 2009
    Date of Patent: November 30, 2010
    Assignee: Panasonic Corporation
    Inventors: Shuhei Nakatani, Hidehiro Yoshida, Kiyohiko Takagi
  • Publication number: 20100295027
    Abstract: 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: Application
    Filed: August 21, 2009
    Publication date: November 25, 2010
    Applicant: Idemitsu Kosan Co., Ltd.
    Inventors: Yuichiro Kawamura, Kazuki Nishimura, Yukitoshi Jinde, Hitoshi Kuma, Toshinari Ogiwara
  • Publication number: 20100295828
    Abstract: 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: Application
    Filed: August 2, 2010
    Publication date: November 25, 2010
    Applicant: SAMSUNG ELECTRONICS CO., LTD
    Inventors: Un-Cheol SUNG, Joo-Hyeon LEE
  • Publication number: 20100295085
    Abstract: 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: Application
    Filed: January 21, 2009
    Publication date: November 25, 2010
    Inventor: Shin-ya Tanaka
  • Publication number: 20100295026
    Abstract: 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: Application
    Filed: November 7, 2006
    Publication date: November 25, 2010
    Applicant: KONICA MINOLTA HOLDINGS, INC.
    Inventors: Aki Tsuji, Hiroshi Kita, Yoshiyuki Suzuri
  • Publication number: 20100295035
    Abstract: 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: Application
    Filed: August 2, 2010
    Publication date: November 25, 2010
    Applicant: SEMICONDUCTOR ENERGY LABORATORY CO., LTD.
    Inventor: Jun Koyama
  • Patent number: 7838880
    Abstract: 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: Grant
    Filed: September 29, 2006
    Date of Patent: November 23, 2010
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Won-Kyu Kwak, Byung-Hee Kim, Sang-Won Lee, In-Young Jung, Myung-Sup Kim
  • Publication number: 20100289017
    Abstract: 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: Application
    Filed: May 13, 2010
    Publication date: November 18, 2010
    Applicant: NEOVIEWKOLON CO., LTD.
    Inventors: Young-Bo Ha, Eun-Chul Shin, Young-Eun Kim, Woo-Bin Im, Hyun-Sik Park
  • Publication number: 20100291720
    Abstract: 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: Application
    Filed: November 12, 2009
    Publication date: November 18, 2010
    Inventors: Woochan Kim, Byungchul Ahn, Changwook Han
  • Publication number: 20100289016
    Abstract: 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: Application
    Filed: May 13, 2010
    Publication date: November 18, 2010
    Applicant: NEOVIEWKOLON CO., LTD.
    Inventors: Young-Bo Ha, Eun-Chul Shin, Young-Eun Kim, Woo-Bin Im, Hyun-Sik Park
  • Publication number: 20100288362
    Abstract: 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: Application
    Filed: May 13, 2009
    Publication date: November 18, 2010
    Inventors: Tukaram K. Hatwar, Jeffrey P. Spindler, Denis Y. Kondakov, Steven A. Van Slyke, Sven Z. Murano, Gufeng He
  • Publication number: 20100289010
    Abstract: 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: Application
    Filed: August 13, 2007
    Publication date: November 18, 2010
    Applicant: INKTEC CO., LTD.
    Inventors: Hyun-Nam Cho, Ji-Hoon Yoo, Kwang-Choon Chung
  • Patent number: 7829888
    Abstract: 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: Grant
    Filed: June 11, 2009
    Date of Patent: November 9, 2010
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Seung Wook Chang, Mu-Hyun Kim
  • Patent number: 7829887
    Abstract: 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: Grant
    Filed: June 11, 2009
    Date of Patent: November 9, 2010
    Assignee: Samsung Mobile Display Co., Ltd.
    Inventors: Seung Wook Chang, Mu-Hyun Kim
  • Publication number: 20100276680
    Abstract: 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: Application
    Filed: July 13, 2010
    Publication date: November 4, 2010
    Applicant: Samsung Mobile Display Co., Ltd.
    Inventors: Tae-Min Kang, Seong-Taek Lee, Myung-Won Song, Mu-Hyun Kim, Byung-Doo Chin, Jae-Ho Lee
  • Publication number: 20100276671
    Abstract: 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: Application
    Filed: April 29, 2009
    Publication date: November 4, 2010
    Applicant: HONEYWELL INTERNATIONAL INC.
    Inventor: Kalluri R. Sarma
  • Publication number: 20100276677
    Abstract: 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: Application
    Filed: April 29, 2010
    Publication date: November 4, 2010
    Applicant: CHIMEI INNOLUX CORPORATION
    Inventors: Hsiang-Lun Hsu, Hsin-Yuan Su
  • Publication number: 20100270538
    Abstract: 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: Application
    Filed: April 23, 2010
    Publication date: October 28, 2010
    Applicant: Samsung Mobile Display Co., Ltd
    Inventor: Jin-Kyu Kang
  • Publication number: 20100270541
    Abstract: 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: Application
    Filed: April 20, 2010
    Publication date: October 28, 2010
    Applicant: CHIMEI INNOLUX CORPORATION
    Inventors: Yu-Chung Liu, Te-Yu Lee, Mei-Ling Chang
  • Patent number: 7821094
    Abstract: 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: Grant
    Filed: October 8, 2008
    Date of Patent: October 26, 2010
    Assignee: Touch Micro-System Technology Inc.
    Inventors: Hung-Yi Lin, Hong-Da Chang
  • Publication number: 20100265236
    Abstract: 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: Application
    Filed: December 10, 2008
    Publication date: October 21, 2010
    Applicant: KONINKLIJKE PHILIPS ELECTRONICS N.V.
    Inventors: Hans-Peter Loebl, Holger Kalisch, Frank Otto Jessen, Christoph Zimmermann