Electrode (epo) Patents (Class 257/E51.019)
E Subclasses
Arrangements for extracting light from device (e.g., bragg reflector pair) (epo) (Class 257/E51.021)
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Publication number: 20140110672Abstract: A transparent emissive device is provided. The device may include one or more OLEDs having an anode, a cathode, and an organic emissive layer disposed between the anode and the cathode. In some configurations, the OLEDs may be non-transparent. The device may also include one or more locally transparent regions, which, in combination with the non-transparent OLEDs, provides an overall device transparency of 5% or more.Type: ApplicationFiled: October 19, 2012Publication date: April 24, 2014Inventor: Michael Hack
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Patent number: 8698146Abstract: An organic light emitting display device includes: a thin-film transistor (TFT) including an active layer, a gate electrode including a gate bottom electrode and a gate top electrode, a source electrode, and a drain electrode; an organic electroluminescent (EL) device electrically connected to the TFT and including a stack of a pixel electrode at the same layer as and including the same material as the gate bottom electrode, an intermediate layer including an emissive layer, and a counter electrode; a first pad electrode at the same layer as and including the same material as the gate bottom electrode; and a second pad electrode including a second pad bottom electrode at the same layer as and including the same material as the gate bottom electrode, and a second pad top electrode at the same layer as and including the same material as the gate top electrode.Type: GrantFiled: September 12, 2011Date of Patent: April 15, 2014Assignee: Samsung Display Co., Ltd.Inventors: Sang-Ho Moon, Ki-Nyeng Kang
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Patent number: 8698130Abstract: An organic light emitting display and a fabricating method thereof, where the display has sub-pixels of various types, which have distinctive shapes formed therein according to type is disclosed. Pixels of a particular type e.g., red, green, or blue, can be identified through visual recognition of the distinctive pattern.Type: GrantFiled: November 26, 2007Date of Patent: April 15, 2014Assignee: Samsung Display Co., Ltd.Inventor: Jongyun Kim
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Patent number: 8692237Abstract: An organic light emitting device enables improvement on the loss of optical extraction efficiency due to total reflection and optical waveguide effects. The organic light emitting device has a structure wherein a first electrode, an organic substance layer, and a second electrode are sequentially laminated on a substrate, a random nano structure having a fine pattern of a peaks-and-valleys shape is formed between a substrate and a first electrode to extract any light that is wasted due to total reflection and an optical waveguide mode to the outside of the substrate so that an organic light emitting device with improved external quantum efficiency can be realized, and optical extraction patterns and color changes due to visual field angles can also be improved.Type: GrantFiled: December 29, 2009Date of Patent: April 8, 2014Assignee: SNU R&DB FoundationInventors: Jang-Joo Kim, Hyong-Jun Kim, Hwan-Hee Cho
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Patent number: 8692254Abstract: An organic light-emitting display device in which a pixel electrode is formed by extending from source and drain electrodes, a capacitor including a thin upper capacitor electrode formed below the pixel electrode and constituting a metal-insulator-metal (MIM) CAP structure, thereby simplifying manufacturing processes, increasing an aperture ratio, and improving a voltage design margin.Type: GrantFiled: August 16, 2011Date of Patent: April 8, 2014Assignee: Samsung Display Co., Ltd.Inventor: June-Woo Lee
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Patent number: 8686403Abstract: Disclosed is an organic light emitting device comprising a first electrode, two or more organic compound layers, and a second electrode, wherein the first electrode comprises a conductive layer and an n-type organic compound layer which is in contact with the conductive layer, one of the organic compound layers interposed between the n-type organic compound layer of the first electrode and the second electrode is a p-type organic compound layer forming an NP junction together with the n-type organic compound layer of the first electrode, energy levels of the layers satisfy the following Expressions (1) and (2), and one or more layers interposed between the p-type organic compound layer and the second electrode are n-doped with alkali earth metal: 0 eV<EnL?EF1?4 eV??(1) EpH?EnL?1 eV??(2) where EF1 is a Fermi energy level of the conductive layer of the first electrode, EnL is an LUMO (lowest unoccupied molecular orbital) energy level of the n-type organic compound layer of the first electrode, and EpH iType: GrantFiled: January 19, 2009Date of Patent: April 1, 2014Assignee: LG Chem Ltd.Inventors: Min-Soo Kang, Se-Hwan Son, Jeoung-Kwen Noh
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Publication number: 20140084254Abstract: Spalling is employed to generate a single crystalline semiconductor layer. Complementary metal oxide semiconductor (CMOS) logic and memory devices are formed on a single crystalline semiconductor substrate prior to spalling. Organic light emitting diode (OLED) driving circuitry, solar cells, sensors, batteries and the like can be formed prior to, or after, spalling. The spalled single crystalline semiconductor layer can be transferred to a substrate. OLED displays can be formed into the spalled single crystalline semiconductor layer to achieve a structure including an OLED display with semiconductor driving circuitry and other functions integrated on the single crystalline semiconductor layer.Type: ApplicationFiled: October 23, 2012Publication date: March 27, 2014Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Ning Li, Devendra K. Sadana
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Publication number: 20140084251Abstract: A transparent conductive electrode stack containing a work function adjusted zinc oxide is provided. Specifically, the transparent conductive electrode stack includes a layer of zinc oxide and a layer of a work function modifying material. The presence of the work function modifying material in the transparent conductive electrode stack shifts the work function of the layer of zinc oxide to a higher value for better hole injection into the OLED device as compared to a transparent conductive electrode that includes only a layer of zinc oxide and no work function modifying material.Type: ApplicationFiled: September 24, 2012Publication date: March 27, 2014Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Keith E. Fogel, Ning Li, Devendra K. Sadana
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Publication number: 20140087506Abstract: A transparent conductive electrode stack containing a work function adjusted zinc oxide is provided. Specifically, the transparent conductive electrode stack includes a layer of zinc oxide and a layer of a work function modifying material. The presence of the work function modifying material in the transparent conductive electrode stack shifts the work function of the layer of zinc oxide to a higher value for better hole injection into the OLED device as compared to a transparent conductive electrode that includes only a layer of zinc oxide and no work function modifying material.Type: ApplicationFiled: October 24, 2012Publication date: March 27, 2014Applicant: INTERNATIONAL BUSINESS MACHINES CORPORATIONInventors: Keith E. Fogel, Ning Li, Devendra K. Sadana
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Patent number: 8680563Abstract: An optoelectronic component having a substrate (1), an anode (2) and a cathode (10) and at least one active layer (6) disposed between the anode and the cathode. An amorphous dielectric layer (3) which contains or consists of a metal oxide, a metal nitride or a metal oxynitride is disposed directly on the cathode-side surface of the anode. The metal contained in the metal oxide, metal nitride or metal oxynitride is selected from one or several of the metals of the group consisting of aluminum, gallium, titanium, zirconium, hafnium, tantalum, lanthanum and zinc.Type: GrantFiled: April 21, 2010Date of Patent: March 25, 2014Assignee: OSRAM Opto Semiconductors GmbHInventors: Tilman Schlenker, Ralph Paetzold
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Patent number: 8680519Abstract: A cuttable organic light emitting diode (OLED) light source device is provided, including a lower substrate, a plurality of OLED modules disposed on the lower substrate and arranged in a matrix, a plurality of sensing electrodes disposed on respective OLED modules for sensing an external magnetic field in order to provide power to the OLED modules, and an upper substrate disposed on the OLED modules and the sensing electrodes. The present disclosure independently provides power to each OLED module through the sensing electrodes, and allows the cuttable OLED light source device with wireless transmission to arbitrarily cut into different shapes, so that the service life and light emitting performance are not affected by the cutting.Type: GrantFiled: December 6, 2012Date of Patent: March 25, 2014Assignee: Industrial Technology Research InstituteInventors: Ming-Chung Liu, Jung-Yu Li, Yi-Ping Lin, Li-Ling Lee
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Publication number: 20140077164Abstract: Techniques for fabricating organic light emitting devices, and devices fabricating using the disclosed techniques, are provided. In the disclosed techniques, a layer including an emissive material and a buffer material may be deposited in a single laser transfer process, such as a laser-induced thermal imaging process. The emissive and buffer materials may be deposited in discrete layers during the transfer process. Examples of buffer materials as disclosed include blocking materials, transfer materials, and the like. Additional layers may be deposited using conventional techniques or additional laser transfer processes.Type: ApplicationFiled: September 14, 2012Publication date: March 20, 2014Inventors: Michael Stuart Weaver, Michael Hack, Julia J. Brown
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Publication number: 20140070236Abstract: Embodiments of the present disclosure relate to devices and methods for reducing the resistance level of top electrodes in top emission AMOLED displays. By way of example, one embodiment includes disposing a metal frame between the top electrode and an insulating layer. The present disclosure also relates to methods for making such a display in reduced number of process steps, including certain techniques for combining certain steps into one process step.Type: ApplicationFiled: September 11, 2012Publication date: March 13, 2014Applicant: APPLE INC.Inventors: Yu Cheng Chen, Shih Chang Chang
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Patent number: 8669558Abstract: A pixel structure includes a thin film transistor device, an insulating layer disposed on the thin film transistor device, and a pixel electrode disposed on the insulating layer. The thin film transistor device includes a floating conductive pad disposed at one side of a semiconductor layer, and electrically connected to a source/drain electrode. The insulating layer has a first contact hole partially exposing the floating conductive pad. The pixel electrode is electrically connected to the floating conductive pad via the first contact hole.Type: GrantFiled: January 12, 2012Date of Patent: March 11, 2014Assignee: AU Optronics Corp.Inventors: Ching-Yang Liu, Wei-Hsiang Lin, Shu-Wei Chu, Hsiang-Chih Hsiao, Jhih-Jie Huang, Sai-Chang Liu, Yu-Hsing Liang
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Publication number: 20140061593Abstract: Optoelectronic devices with enhanced internal outcoupling include a substrate, an anode, a cathode, an electroluminescent layer, and an electron transporting layer comprising inorganic nanoparticles dispersed in an organic matrix.Type: ApplicationFiled: August 30, 2012Publication date: March 6, 2014Applicant: GENERAL ELECTRIC COMPANYInventors: Jie Jerry Liu, JR., Srinivas Prasad Sista, Xiaolei Shi, Ri-An Zhao, Kelly Scott Chichak, Jeffrey Michael Youmans, Kevin Henry Janora, Larry Gene Turner
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Patent number: 8659048Abstract: An organic light emitting device includes a first electrode formed over a substrate, an intermediate layer that is formed over the first electrode and includes an organic light emitting layer, and a second electrode that includes a central electrode unit disposed in a central region and a peripheral electrode unit separated from the central electrode unit and disposed in a peripheral region. The intermediate layer is disposed between the first and second electrodes. The organic light emitting device can readily secure a uniform brightness characteristic.Type: GrantFiled: April 9, 2012Date of Patent: February 25, 2014Assignee: Samsung Display Co., Ltd.Inventors: Sang-Hoon Yim, Ok-Keun Song, Young-Mo Koo
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Patent number: 8633054Abstract: In an organic light-emitting display device and a method of manufacturing the same, the organic light-emitting display device comprises: a substrate including a transistor region; a buffer layer and a semiconductor layer sequentially formed on the substrate; a gate electrode formed on the semiconductor layer; an interlayer insulating film formed on the gate electrode; source and drain electrodes, each formed on the interlayer insulating film and having a portion penetrating the interlayer insulating film so as to contact the semiconductor layer; a mask pattern formed on each of the source and drain electrodes; and a pixel defined layer formed on the mask pattern.Type: GrantFiled: November 17, 2011Date of Patent: January 21, 2014Assignee: Samsung Display Co., Ltd.Inventor: Bong-Ju Kim
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Patent number: 8633497Abstract: A first device is provided. The first device includes an organic light emitting device, which further comprises a first electrode, a second electrode, and an organic emissive layer disposed between the first and second electrode. Preferably, the second electrode is more transparent than the first electrode. The organic emissive layer has a first portion shaped to form an indentation in the direction of the first electrode, and a second portion shaped to form a protrusion in the direction of the second electrode. The first device may include a plurality of organic light emitting devices. The indentation may have a shape that is formed from a partial sphere, a partial cylinder, a pyramid, or a pyramid with a mesa, among others. The protrusions may be formed between adjoining indentations or between an indentation and a surface parallel to the substrate.Type: GrantFiled: March 25, 2010Date of Patent: January 21, 2014Assignee: The Regents of the University of MichiganInventors: Stephen R. Forrest, Michael Slootsky, Richard Lunt
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Patent number: 8629463Abstract: An organic light-emitting display device, formed to be transparent, includes a substrate; a plurality of thin film transistors disposed on the substrate; a passivation layer covering the plurality of thin film transistors; a plurality of pixel electrodes disposed on the passivation layer and connected electrically to the plurality of thin film transistors, and overlapping and covering the plurality of thin film transistors; a first conductive unit disposed on the passivation layer to be disconnected electrically from the pixel electrodes; a pixel defining layer formed on the passivation layer to cover edges of the pixel electrodes; an opposite electrode facing the plurality of pixel electrodes, and covering at least part of the first conductive unit; an organic layer, including an emission layer, disposed between the pixel electrodes and the opposite electrode; and a second conductive unit connected electrically to a portion of the opposite electrode and the first conductive unit.Type: GrantFiled: March 4, 2011Date of Patent: January 14, 2014Assignee: Samsung Display Co., Ltd.Inventor: Jin-Koo Chung
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Patent number: 8624226Abstract: An organic light emitting device (OLED) is formed by assembling a first substrate and a second substrate. The second substrate includes several sub-pixels. The first substrate includes several transistors electrically connected to each other and, for each subpixel, a first connecting electrode electrically connected to one of the transistors. Each subpixel includes a light-emitting region and a non light-emitting region. A second connecting electrode is formed in the non light-emitting region and electrically connected to the respective first connecting electrode.Type: GrantFiled: April 3, 2007Date of Patent: January 7, 2014Assignee: Chimei Innolux CorporationInventors: Seok-Woon Lee, Sung-Soo Park, Biing-Seng Wu
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Patent number: 8610155Abstract: The invention relates to: a light-emitting device which includes a first flexible substrate having a first electrode, a light-emitting layer over the first electrode, and a second electrode with a projecting portion over the light-emitting layer and a second flexible substrate having a semiconductor circuit and a third electrode electrically connected to the semiconductor circuit, in which the projecting portion of the second electrode and the third electrode are electrically connected to each other; a method for manufacturing the light-emitting device; and a cellular phone which includes a housing incorporating the light-emitting device and having a longitudinal direction and a lateral direction, in which the light-emitting device is disposed on a front side and in an upper portion in the longitudinal direction of the housing.Type: GrantFiled: November 12, 2009Date of Patent: December 17, 2013Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Kaoru Hatano, Satoshi Seo, Shunpei Yamazaki
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Publication number: 20130320306Abstract: An organic light-emitting display apparatus including an active layer and a first insulating layer on a substrate; a gate electrode on first insulating layer and including a first transparent conductive layer and a first metal layer, a second insulating layer on the gate electrode and including contact holes exposing source and drain areas of the active layer; source and drain electrodes including a second metal layer in the contact holes and on the second insulating layer, a pixel electrode on the first insulating layer and including the first transparent conductive layer, a reflection layer, and a second transparent conductive layer, and a pixel-defining layer on the source and drain electrodes and exposing the pixel electrode. The pixel-defining layer covers upper edges of the first transparent conductive layer of the pixel electrode. The reflection layer and the second transparent conductive layer contact sides of the pixel-defining layer.Type: ApplicationFiled: November 2, 2012Publication date: December 5, 2013Inventors: Sung-Soo CHOI, Jae-Beom CHOI, Yeoung-Jin CHANG, Jae-Hwan OH, Seong-Hyun JIN
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Patent number: 8598574Abstract: To provide a light-emitting device having a top-emission structure with low power consumption. A convex structure body is formed over a substrate to be provided with an organic EL element, and then an upper electrode layer is formed. Thus, the upper electrode layer has a shape following the convex shape. In addition, a conductive layer is formed over a substrate sealing an organic EL layer. Then, by sealing a surface where the upper electrode layer is formed and a surface where the conductive layer is formed are sealed to face each other, at least part of the electrode layer overlapped with the convex structure body is in contact with the conductive layer, so that the resistivity of the upper electrode layer is significantly reduced. Thus, power consumption of a light-emitting element can be reduced.Type: GrantFiled: February 6, 2012Date of Patent: December 3, 2013Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventor: Takuya Tsurume
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Patent number: 8598572Abstract: Provided are an electronic device including a bank structure and a method of manufacturing the same. The method of manufacturing the electronic device requires a fewer number of processes and comprises a direct patterning of insulating layers, such as fluorinated organic polymer layers, is possible using cost-efficient techniques such as inkjet printing.Type: GrantFiled: July 5, 2011Date of Patent: December 3, 2013Assignee: Samsung Display Co., Ltd.Inventors: Arthur Mathea, Joerg Fischer, Marcus Schaedig
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Publication number: 20130313527Abstract: An organic light-emitting device and a method of producing the same, the device including a substrate; a first electrode layer on the substrate; an emission layer on the first electrode layer; an electron transport layer on the emission layer, the electron transport layer including first electron transport layers and a second electron transport layer between the first electron transport layers and the second electron transport layer including a lanthanide metal; and a second electrode layer on the electron transport layer.Type: ApplicationFiled: October 2, 2012Publication date: November 28, 2013Inventor: Eung-Do KIM
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Patent number: 8586976Abstract: There are provided an electrode foil which has both the functions of a supporting base material and a reflective electrode and also has a superior thermal conductivity and heat resistance; and an organic device using the same. The electrode foil comprises a metal foil; a diffusion prevention layer for preventing diffusion of metal derived from the metal foil, the diffusion prevention layer being provided directly on the metal foil; and a reflective layer provided directly on the diffusion prevention layer.Type: GrantFiled: September 8, 2011Date of Patent: November 19, 2013Assignee: Mitsui Mining & Smelting Co., Ltd.Inventors: Yoshinori Matsuura, Nozomu Kitajima
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Patent number: 8587006Abstract: An organic light-emitting display apparatus including a thin-film transistor (TFT) is disclosed. In one embodiment, the organic light-emitting display apparatus includes a thin-film transistor (TFT) and an organic light-emitting device electrically connected to the TFT. The apparatus further includes a light blocking portion formed directly above at least a portion of the TFT and configured to prevent light, emitted from the organic light-emitting device, from entering the portion of the TFT.Type: GrantFiled: August 20, 2010Date of Patent: November 19, 2013Assignee: Samsung Display Co., Ltd.Inventors: Mu-Gyeom Kim, Byoung-Seong Jeong, Chang-Mo Park, Gun-Shik Kim
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Publication number: 20130292648Abstract: A conductive material having a mixture of PEDOT:PSS is provided. The conductive material can be used to form a flexible transparent conductive film. Furthermore, various LED-type flexible transparent displays can be formed by the flexible transparent conductive film.Type: ApplicationFiled: May 25, 2012Publication date: November 7, 2013Applicant: Elite Optoelectronic Co., Ltd.Inventors: Tsung-Yen Tsai, Chia-Chien Chin, Yu-An Li, Shieh-Heng Lee
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Publication number: 20130270526Abstract: An organic light-emitting display apparatus includes a substrate, a plurality of organic light-emitting diodes on the substrate, and a plurality of capacitors located next to at least one side of one of the organic light-emitting diodes. The capacitors are arranged inside trenches within the substrate.Type: ApplicationFiled: October 11, 2012Publication date: October 17, 2013Inventors: Sung-Ho KIM, Jong-Moo HUH, Hye-Dong KIM
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Publication number: 20130256703Abstract: A stratified organic light-emitting diode structure includes a thin-film transistor and an organic light-emitting diode (OLED). The OLED is fabricated on a planarization layer that has a top surface substantially parallel to the substrate, and the layers in the organic light-emitting diode (OLED) are substantially parallel to each other. The major part of each OLED layer has a uniform thickness so that the OLED produces a uniform brightness. The planarization layer covers the thin-film transistor entirely and the planarization layer on top of the thin-film transistor is also covered by an insulation layer. In order to electrically connect the top electrode of the OLED to the drain terminal of the thin-film transistor, an opening is made through both the top insulating layer and the planarization layer to expose part of the drain terminal. Spacers with uniform height are fabricated on the top insulating layer to protect the pixel structure.Type: ApplicationFiled: April 3, 2012Publication date: October 3, 2013Applicant: AU OPTRONICS CORPORATIONInventor: Hsing-Hung Hsieh
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Publication number: 20130256723Abstract: An organic light emitting diode (OLED) display includes a light-emitting region including an organic emission layer and a non-light-emitting region neighboring the light-emitting region. The OLED display includes a first electrode positioned at the light-emitting region and including a plurality of division regions divided according to a virtual cutting line crossing the light-emitting region, an organic emission layer positioned on the first electrode, a second electrode positioned on the organic emission layer, a driving thin film transistor connected to the first electrode, and a plurality of input terminals positioned at the non-light-emitting region and respectively connecting between each of division regions and the driving thin film transistor.Type: ApplicationFiled: September 12, 2012Publication date: October 3, 2013Inventors: Guang hai JIN, Jae-Beom CHOI, Kwan-Wook JUNG, June-Woo LEE, Moo-Jin KIM, Na-Young KIM
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Patent number: 8536611Abstract: An organic light-emitting display device is provided that has prolonged service life, lowered wiring resistance that can lower power consumption, and that is easy to manufacture. In a first embodiment, a moisture capturing layer is provided between an upper electrode and a lower electrode. A second embodiment includes a metal substrate, an organic light-emitting element on the substrate and an upper transparent electrode connected to the substrate through a contact hole. In a third embodiment, a method is provided for forming a first organic compound including a light-emitting layer, heating the first organic compound in vacuo, and forming a second organic compound.Type: GrantFiled: June 15, 2009Date of Patent: September 17, 2013Assignee: Hitachi, Ltd.Inventors: Sukekazu Aratani, Kazuhito Masuda, Kotaro Araya, Hiroyuki Kagawa, Shintaro Takeda, Shingo Ishihara
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Publication number: 20130234117Abstract: The organic light emitting display apparatus includes a substrate; a gate electrode formed on the substrate; a source electrode and a drain electrode formed on the gate electrode to be insulated from the gate electrode; an active layer formed on the source electrode and the drain electrode and containing an organic semiconductor material, at least one region of the active layer overlapping with the gate electrode; a pixel defining layer formed on the active layer and including an aperture; an intermediate layer disposed to correspond to the aperture and including an organic emission layer; and an opposite electrode formed on the intermediate layer. One of the source electrode and the drain electrode is formed to be long to act as a pixel electrode and includes a first conductive layer and a second conductive layer on the first conductive layer, the second conductive layer formed to contact the intermediate layer.Type: ApplicationFiled: October 1, 2012Publication date: September 12, 2013Applicant: SAMSUNG DISPLAY CO., LTD.Inventor: Mu-Gyeom Kim
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Patent number: 8519385Abstract: An organic light emitting diode (OLED) display according to an exemplary embodiment of the invention includes: a display substrate including a plurality of pixel areas; a tilt layer formed on the display substrate of each of the plurality of pixel areas, and having a tilt angle with respect to the display substrate; a first electrode formed on the tilt layer; an organic emission layer formed on the first electrode; a second electrode formed on the organic emission layer; an encapsulation substrate disposed on the second electrode and in parallel with the display substrate; and a prism sheet formed on the encapsulation substrate and having a plurality of prisms.Type: GrantFiled: May 7, 2012Date of Patent: August 27, 2013Assignee: Samsung Display Co., Ltd.Inventors: Jae-Ik Lim, Yi-Joon Ahn, Gee-Bum Kim, Yong-Seok Yeo, Man-Seob Choi
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Patent number: 8519407Abstract: An organic light-emitting display includes a substrate including a pixel region and a transistor region; a first transparent electrode and a second transparent electrode formed over the pixel region and the transistor region of the substrate, respectively; a gate electrode formed over the second transparent electrode; a gate insulating film formed over the gate electrode; a semiconductor layer formed over the gate insulating film; a source and drain electrode having an end connected to the semiconductor layer and the other end connected to the first transparent electrode; a pixel defining layer disposed over the source and drain electrode to cover the source and drain electrode and having an opening disposed over the first transparent electrode; a light-blocking layer formed over the pixel defining layer; and an organic light-emitting layer formed over the first transparent electrode.Type: GrantFiled: January 12, 2012Date of Patent: August 27, 2013Assignee: Samsung Display Co., Ltd.Inventor: Yong-Woo Park
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Patent number: 8519424Abstract: Mosaic devices including an apparatus includes at least one electroluminescence (EL) device and a system substrate. The at least one EL device can be configured to be coupled mechanically and electrically to the system substrate. The system substrate can be configured to receive the at least one EL device at a non-discrete location or orientation. The system substrate can be a smart system substrate configured to automatically identify a device type. The EL device can be an area-emitting device such as an organic light emitting diode (OLED) device.Type: GrantFiled: August 18, 2009Date of Patent: August 27, 2013Assignee: Plextronics, Inc.Inventors: Troy D. Hammond, Lisa Pattison, Venkataramanan Seshadri
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Patent number: 8513655Abstract: An organic light emitting diode (OLED) and a method for manufacturing the same are provided. In the OLED, patterned metal electrodes are positioned on one or more of upper and lower portions of a light emission layer to allow light generated from the light emission layer to emit to an area between the patterned metal electrodes.Type: GrantFiled: December 21, 2010Date of Patent: August 20, 2013Assignee: Electronics and Telecommunications Research InstituteInventors: Lee Mi Do, Kun Sik Park, Ji Man Park, Dong Pyo Kim, Jin-Yeong Kang, Kyu Ha Baek
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Patent number: 8502211Abstract: An organic light emitting diode display includes: a substrate having first and second regions; a first thin film transistor (TFT) including source and drain electrodes at the first region; a second TFT including source and drain electrodes at the second region; a protective layer on the first and second TFTs; a planarization layer pattern on the protective layer; a first pixel electrode electrically connected to the source electrode or the drain electrode of the first TFT through a first via contact hole through the protective layer; and a second pixel electrode electrically connected to the source electrode or the drain electrode of the second TFT through a second via contact hole formed through the protective layer and the planarization layer pattern, the planarization layer pattern corresponding to a shape of the second pixel electrode and located between the protective layer and the second pixel electrode.Type: GrantFiled: June 29, 2011Date of Patent: August 6, 2013Assignee: Samsung Display Co., Ltd.Inventors: Dae-Woo Lee, Han-Hee Yoon, Kyoung-Bo Kim
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Patent number: 8502233Abstract: It is an object of the present invention to provide a semiconductor device, in particular, a light emitting element which can be easily manufactured with a wet method. One feature of the invention is a light emitting device including a transistor and a light emitting element. In the light emitting element, an organic layer, a light emitting layer, and a second electrode are sequentially formed over a first electrode, and the transistor is electrically connected to the light emitting element through a wiring. Here, the wiring contains aluminum, carbon, and titanium. The organic layer is formed by a wet method. The first electrode which is in contact with the organic layer is formed from indium tin oxide containing titanium oxide.Type: GrantFiled: September 28, 2011Date of Patent: August 6, 2013Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Shunpei Yamazaki, Kengo Akimoto
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Patent number: 8497155Abstract: Certain example embodiments relate to organic light emitting diode (OLED)/polymer light emitting diode (PLED) devices, and/or methods of making the same. A first transparent conductive coating (TCC) layer is disposed, directly or indirectly, on a glass substrate. An outermost major surface of the TCC layer is planarized by exposing the outermost major surface thereof to an ion beam. Following said planarizing, the first TCC layer has an arithmetic mean value RMS roughness (Ra) of less than 1.5 nm. A hole transporting layer (HTL) and an electron transporting and emitting layer (ETL) are disposed, directly or indirectly, on the planarized outermost major surface of the first TCC layer. A second TCC layer is disposed, directly or indirectly, on the HTL and the ETL. One or both TCC layers may include ITO. The substrate and/or an optional optical out-coupling layer stack system may be planarized using an ion beam.Type: GrantFiled: June 5, 2012Date of Patent: July 30, 2013Assignees: Guardian Industries Corp., Centre Luxembourgeois de Recherches pour le Verre et la Ceramique S.A. (C.R.V.C.)Inventors: Vijayen S. Veerasamy, Jens-Peter Muller, Tukaram K. Hatwar
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Patent number: 8497514Abstract: An organic light emitting device and a method for fabricating the same are discussed. According to an embodiment, the method includes forming a mother substrate structure including organic light emitting devices including TFTs and first electrodes, each first electrode electrically connected to the corresponding TFT and being a part of an OLED to be formed; forming first and second conductive layers to form a power line in each organic light emitting device; forming a dummy layer on the first electrodes and the second conductive layer; performing at least one of scribing and grinding processes on the mother substrate structure to divide the mother substrate structure into sub-substrate structures; removing the dummy layer from the first electrodes and the second conductive layer after the performing step; and forming a light emitting layer and a second electrode on the first electrode in one of the sub-substrate structures to form the OLED.Type: GrantFiled: July 8, 2010Date of Patent: July 30, 2013Assignee: LG Display Co., Ltd.Inventors: Jaeyong Park, Wonhee Choi, Byoungjune Lee, Donghwan Kim, Hyungchul Kim
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Patent number: 8482017Abstract: An organic light emitting diode device comprises a first electrode, a second electrode facing the first electrode, a first light emitting unit and a second light emitting unit positioned between the first electrode and the second electrode, a charge generation layer positioned between the first light emitting unit and the second light emitting unit, and a charge balance layer positioned adjacent to charge generation layer and including a lithium-containing compound.Type: GrantFiled: July 21, 2011Date of Patent: July 9, 2013Assignee: Samsung Display Co., Ltd.Inventors: Sung-Soo Lee, Gwan-Hyoung Lee
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Publication number: 20130146848Abstract: Novel phosphorescent metal complexes containing 2-phenylisoquinoline ligands with at least two substituents on the isoquinoline ring are provided. The disclosed compounds have low sublimation temperatures that allow for ease of purification and fabrication into a variety of OLED devices.Type: ApplicationFiled: December 9, 2011Publication date: June 13, 2013Applicant: Universal Display CorporationInventors: Bin Ma, Alan DeAngelis, Chuanjun Xia
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Patent number: 8461580Abstract: To provide a light-emitting element, a light-emitting device, and an electronic device each formed using the organometallic complex represented by General Formula (G1) as a guest material and a low molecule compound as a host material.Type: GrantFiled: August 2, 2011Date of Patent: June 11, 2013Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Hideko Inoue, Nobuharu Ohsawa, Satoshi Seo
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Patent number: 8461577Abstract: According to one embodiment, an organic EL device includes an insulating substrate, first and second interlayer insulators, pixel electrodes, an organic layer, and a counter electrode. The first interlayer insulator is positioned above the insulating substrate. The second interlayer insulator is positioned on the first interlayer insulator and provided with slits. The pixel electrodes are arranged on the second interlayer insulator. Two or more of the pixels are adjacent to each other with one of regions corresponding to the slits interposed therebetween. The organic layer is positioned on the pixel electrodes and includes an emitting layer. The counter electrode is positioned above the organic layer.Type: GrantFiled: February 11, 2011Date of Patent: June 11, 2013Assignee: Japan Display Central Inc.Inventors: Shiro Sumita, Shuhei Yokoyama, Masuyuki Oota
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Patent number: 8461579Abstract: An organic radiation-emitting component, including a first electrode (1) having a first electrical contact region (10) for making electrical contact with the first electrode (1), a first organic functional layer (31) on the first electrode (1), on the first organic functional layer (31) at least one organic active region (4) suitable for emitting electromagnetic radiation during operation, and a second electrode (2) on the active region (4), wherein the first organic functional layer (31) includes a plurality of laterally arranged partial regions (30) each including a first material (51) having a first electrical conductivity and a second material (52) having a second electrical conductivity, the second electrical conductivity is greater than the first electrical conductivity, and the ratio of the proportion of the second material (52) to the proportion of the first material (51) in the partial regions (30) of the first organic functional layer (31) varies in a manner dependent on a lateral distance from theType: GrantFiled: October 22, 2009Date of Patent: June 11, 2013Assignee: OSRAM Opto Semiconductors GmbHInventors: Christoph Gärditz, Ralf Krause, Günter Schmid, Stefan Seidel, Oliver Weiss, Riikka Suhonen, Ulrich Niedermeier
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Publication number: 20130140599Abstract: A textile-type organic light-emitting device and a method of manufacturing the textile-type organic light-emitting device are provided. The light-emitting device includes a textile-type first electrode; an organic light-emitting material layer formed on a surface of the textile-type first electrode; and a second electrode formed on the organic light-emitting material layer, the second electrode being transparent.Type: ApplicationFiled: June 6, 2012Publication date: June 6, 2013Applicant: SAMSUNG ELECTRONICS CO., LTD.Inventors: Jong-jin PARK, Jung-kyun IM, Sang-won KIM, Chwee lin CHOONG
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Publication number: 20130134452Abstract: Provided is a display device including: a substrate; and multiple pixels provided on the substrate, the pixels each having an organic EL element obtained by laminating a lower electrode provided on the substrate, an organic compound layer, and an upper electrode in the stated order, and the lower electrode including an electrode independently placed for each of the pixels, in which: the lower electrode is formed of a first lower electrode layer provided on the substrate and a second lower electrode layer provided on the first lower electrode layer; the organic compound layer and the upper electrode cover the first lower electrode layer and the second lower electrode layer; and charge injection property from the second lower electrode layer into the organic compound layer is larger than charge injection property from an end portion of the first lower electrode layer into the organic compound layer.Type: ApplicationFiled: November 6, 2012Publication date: May 30, 2013Applicant: CANON KABUSHIKI KAISHAInventor: Canon Kabushiki Kaisha
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Patent number: 8450768Abstract: The present invention provides a semiconductor light-emitting element comprising an electrode part excellent in ohmic contact and capable of emitting light from the whole surface. An electrode layer placed on the light-extraction side comprises a metal part and plural openings. The metal part is so continuous that any pair of point-positions in the part is continuously connected without breaks, and the metal part in 95% or more of the whole area continues linearly without breaks by the openings in a straight distance of not more than ? of the wavelength of light emitted from an active layer. The average opening diameter is of 10 nm to ? of the wavelength of emitted light. The electrode layer has a thickness of 10 nm to 200 nm, and is in good ohmic contact with a semiconductor layer.Type: GrantFiled: December 23, 2011Date of Patent: May 28, 2013Assignee: Kabushiki Kaisha ToshibaInventors: Ryota Kitagawa, Koji Asakawa, Akira Fujimoto, Tsutomu Nakanishi, Eishi Tsutsumi
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Patent number: 8445910Abstract: In an organic light emitting display, a conductive layer is formed on the bottom surface of a substrate, and the conductive layer is used as a wiring line for supplying a power source, and as the electrode of a capacitor. Therefore, it is possible to easily secure the aperture ratio of a pixel, to easily solve the problem of IR drops by controlling the area or thickness of the conductive layer, and to easily secure the electrostatic capacity of the capacitor. In particular, in the case of a front surface light emitting structure, since a capacitor of a metal/insulating layer/metal (MIM) structure may be formed in a light emitting region, enough aperture ratio and electrostatic capacity may be secured. Therefore, a high resolution organic light emitting display may be easily realized, and enough aperture ratio and electrostatic capacity are secured so as to realize high picture quality.Type: GrantFiled: March 29, 2011Date of Patent: May 21, 2013Assignee: Samsung Display Co., Ltd.Inventors: Jong-Yun Kim, Il-Jeong Lee, Choong-Youl Im