Langmuir Blodgett Film (epo) Patents (Class 257/E51.052)
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Patent number: 9040176Abstract: An organic light-emitting device including: a substrate; a display unit on the substrate; and an encapsulation layer covering the display unit, the encapsulation layer having an alternating stack structure of an organic layer and an inorganic layer, and the organic layer including a polymer polymerized from monomers of Formula 1 and Formula 2:Type: GrantFiled: March 14, 2013Date of Patent: May 26, 2015Assignee: Samsung Display Co., Ltd.Inventors: Nam-Jin Kim, Chul-Hwan Park
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Patent number: 9017829Abstract: The present invention relates to a material for an organic electroluminescent device, including a phenanthrocarbazole-based compound having a specific structure, and an organic electroluminescent device including the same. More specifically, the phenanthrocarbazole-based compound is applied as a material for a phosphorescent and fluorescent organic electroluminescent device, thereby providing an organic light emitting device with improved light emitting efficiency, luminance, thermal stability, driving voltage, lifetime and the like.Type: GrantFiled: May 6, 2011Date of Patent: April 28, 2015Assignee: Doosan CorporationInventors: Jin-Seok Hong, Eun Jung Lee, Shin Han Kim, Kyoung-Soo Kim
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Patent number: 9005779Abstract: Disclosed are a compound comprising a five-membered hetero ring, an organic electrical element using the same and a terminal thereof.Type: GrantFiled: May 26, 2011Date of Patent: April 14, 2015Assignee: Duk San Neolux Co., Ltd.Inventors: Junghwan Park, Daesung Kim, Heesun Ji, Soungyun Mun, Sunhee Lee, Bumsung Lee
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Patent number: 9005775Abstract: A composition includes: (B) an arylamine derivative having at least one polymerizable group; and (A) a cyano group-free azo based polymerization initiator.Type: GrantFiled: September 21, 2011Date of Patent: April 14, 2015Assignee: FUJIFILM CorporationInventors: Naoyuki Hayashi, Ryo Nishio, Saki Takada
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Patent number: 8999528Abstract: A condensation compound is represented by Formula 1, 2, or 3 where R1 to R24 and A to F are further defined in the detailed description.Type: GrantFiled: January 8, 2013Date of Patent: April 7, 2015Assignee: Samsung Display Co., Ltd.Inventors: So-Yeon Kim, Yoon-Hyun Kwak, Bum-Woo Park, Jong-Won Choi, Wha-Il Choi, Sun-Young Lee, Ji-Youn Lee, Jin-Young Yun
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Patent number: 8999526Abstract: An organic photoelectric device may include an anode and a cathode configured to face each other, and an active layer between the anode and cathode, wherein the active layer includes a quinacridone derivative and a thiophene derivative having a cyanovinyl group.Type: GrantFiled: April 13, 2012Date of Patent: April 7, 2015Assignee: Samsung Electronics Co., Ltd.Inventors: Kwang Hee Lee, Kyu Sik Kim, Kyung Bae Park, Dong-Seok Leem, Seon Jeong Lim
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Patent number: 8999530Abstract: The present invention provides a new compound and an organic electronic device using the same. The compound according to the present invention may serve as hole injection, hole transporting, electron injection and transporting, and light emitting materials and the like in an organic electronic device comprising an organic light emitting device, and the organic electronic device according to the present invention shows excellent properties in terms of efficiency, driving voltage and service life.Type: GrantFiled: June 12, 2012Date of Patent: April 7, 2015Assignee: LG Chem, Ltd.Inventors: Changhwan Shin, Kongkyeom Kim, Dong Hoon Lee, Jungi Jang, Minseung Chun
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Patent number: 8993123Abstract: The present invention relates to the compounds of the formula (1) and to organic electroluminescent devices, in particular blue-emitting devices, in which these compounds are used as host material in the emitting layer and/or as electron-transport material.Type: GrantFiled: February 13, 2009Date of Patent: March 31, 2015Assignee: Merck Patent GmbHInventors: Arne Buesing, Holger Heil, Philipp Stoessel
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Patent number: 8993130Abstract: The present invention discloses a novel organic compound is represented by the following formula(I), the organic EL device employing the organic compound as host material or dopant material of emitting layer and/or as electron transporting material can lower driving voltage, prolong half-lifetime and increase the efficiency. wherein m represent an integer of 0 to 10, n represent an integer of 0 to 2. X is a divalent bridge selected from the atom or group consisting from O, S, C(R5)2, N(R5), Si(R5)2. Ar, R1 to R4 are substituents and the same definition as described in the present invention.Type: GrantFiled: December 17, 2012Date of Patent: March 31, 2015Inventors: Feng-Wen Yen, Cheng-Hao Chang
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Patent number: 8497512Abstract: To prevent a point defect and a line defect in forming a light-emitting device, thereby improving the yield. A light-emitting element and a driver circuit of the light-emitting element, which are provided over different substrates, are electrically connected. That is, a light-emitting element and a driver circuit of the light-emitting element are formed over different substrates first, and then electrically connected. By providing a light-emitting element and a driver circuit of the light-emitting element over different substrates, the step of forming the light-emitting element and the step of forming the driver circuit of the light-emitting element can be performed separately. Therefore, degrees of freedom of each step can be increased, and the process can be flexibly changed. Further, steps (irregularities) on the surface for forming the light-emitting element can be reduced than in the conventional technique.Type: GrantFiled: March 9, 2012Date of Patent: July 30, 2013Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Osamu Nakamura, Miyuki Higuchi, Yasuko Watanabe, Yasuyuki Arai
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Patent number: 8383449Abstract: A thin film transistor array panel includes a substrate, a plurality of first and second signal lines crossing each other on the substrate, source electrodes connected to the first signal lines, drain electrodes connected to the second signal lines, pixel electrodes connected to the drain electrodes, a first partition formed on the source and drain electrodes and having a first opening, wherein a lower width of the first opening is wider than an upper width of the first opening, an organic semiconductor formed in the first opening and at least overlapping the portions of the source electrode and the drain electrode, and a gate electrode connected to the second signal line and at least overlapping the portion of the organic semiconductor.Type: GrantFiled: August 16, 2010Date of Patent: February 26, 2013Assignee: Samsung Display Co., Ltd.Inventors: Keun-Kyu Song, Tae-Young Choi, Tae-Hyung Hwang, Seung-Hwan Cho
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Patent number: 8314435Abstract: An organic light emitting diode display is disclosed. The organic light emitting diode display includes a plurality of subpixels that emit light of at least three colors, the plurality of subpixels each including a first electrode, an organic light emitting layer, and a second electrode. Each of the organic light emitting layers of at least two of the plurality of subpixels includes at least two electron transport layers. The organic light emitting layer of at least one of the plurality of subpixels includes at least one electron transport layer.Type: GrantFiled: May 13, 2010Date of Patent: November 20, 2012Assignee: LG Display Co., Ltd.Inventor: Sehee Lee
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Patent number: 8304095Abstract: The present invention relates to the improvement of blue-emitting organic electroluminescent devices comprising stilbenamines, and to materials for the production of these electroluminescent devices.Type: GrantFiled: November 17, 2006Date of Patent: November 6, 2012Assignee: Merck Patent GmbHInventors: Holger Heil, Philipp Stoessel, Rocco Fortte, Amir Parham, Horst Vestweber
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Patent number: 8304280Abstract: A thin film transistor array panel includes a substrate, a plurality of first and second signal lines crossing each other on the substrate, source electrodes connected to the first signal lines, drain electrodes connected to the second signal lines, pixel electrodes connected to the drain electrodes, a first partition formed on the source and drain electrodes and having a first opening, wherein a lower width of the first opening is wider than an upper width of the first opening, an organic semiconductor formed in the first opening and at least overlapping the portions of the source electrode and the drain electrode, and a gate electrode connected to the second signal line and at least overlapping the portion of the organic semiconductor.Type: GrantFiled: August 16, 2010Date of Patent: November 6, 2012Assignee: Samsung Display Co., Ltd.Inventors: Keun-Kyu Song, Tae-Young Choi, Tae-Hyung Hwang, Seung-Hwan Cho
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Patent number: 8237159Abstract: According to an embodiment of the present invention, an organic electroluminescent display device includes transistors formed on a substrate, an insulating layer on the transistors, a lower electrode formed on the insulating layer and coupled to a source or a drain of each of the transistors, a bank layer having openings to expose a part of the lower electrode, a bus electrode formed on the bank layer, an organic light-emitting layer formed to cover the lower electrode, the bank layer, and the bus electrode and patterned to expose at least a part of the bus electrode, and an upper electrode formed on the organic light-emitting layer and configured to come into contact with the exposed bus electrode.Type: GrantFiled: July 15, 2011Date of Patent: August 7, 2012Assignee: LG Display Co., Ltd.Inventors: Fengjin Li, Jaeyoung Lee, Taeyeon Yoo
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Patent number: 8222070Abstract: A thin film transistor array panel includes a substrate, a plurality of first and second signal lines crossing each other on the substrate, source electrodes connected to the first signal lines, drain electrodes connected to the second signal lines, pixel electrodes connected to the drain electrodes, a first partition formed on the source and drain electrodes and having a first opening, wherein a lower width of the first opening is wider than an upper width of the first opening, an organic semiconductor formed in the first opening and at least overlapping the portions of the source electrode and the drain electrode, and a gate electrode connected to the second signal line and at least overlapping the portion of the organic semiconductor.Type: GrantFiled: August 16, 2010Date of Patent: July 17, 2012Assignee: Samsung Electronics Co., Ltd.Inventors: Keun-Kyu Song, Tae-Young Choi, Tae-Hyung Hwang, Seung-Hwan Cho
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Patent number: 8198624Abstract: An organic light emitting device is disclosed. The organic light emitting device includes a substrate, a display positioned on the substrate, and a dummy pattern positioned at an edge of the display. The display includes a plurality of subpixels each including a first electrode, an emissive unit including at least an organic emissive layer, and a second electrode. The dummy pattern includes a dummy layer including the same formation material as that of at least one of a plurality of layers for forming the emissive unit.Type: GrantFiled: August 3, 2007Date of Patent: June 12, 2012Assignee: LG Display Co., Ltd.Inventor: Chonghyun Park
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Patent number: 8173275Abstract: The invention provides an azaindenochrysene derivative, and an organic light-emitting device outputting light having high luminance and a long lifetime with high efficiency having an organic compound layer that includes the azaindenochrysene derivative.Type: GrantFiled: November 5, 2009Date of Patent: May 8, 2012Assignee: Canon Kabushiki KaishaInventors: Hiroki Ohrui, Masanori Muratsubaki, Takeshi Sekiguchi, Akihito Saitoh
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Anthracene derivatives, method for preparation thereof, and organic electronic device using the same
Patent number: 8173273Abstract: The present invention relates to a novel anthracene derivative, a method for preparation thereof, and an organic electronic device using the same. The anthracene derivative according to the present invention can function as a hole injecting, hole transporting, electron injecting, electron transporting, or light emitting in an organic electronic device including an organic light emitting device, and in particular, used alone as a light emitting, or as a host or dopant in a host/dopant system. The organic electronic device according to the present invention exhibits excellent characteristics in terms of efficiency, drive voltage, life time, and stability.Type: GrantFiled: April 20, 2007Date of Patent: May 8, 2012Assignee: LG Chem, Ltd.Inventors: Ji-Eun Kim, Kong-Kyeom Kim, Tae-Yoon Park, Hye-Young Jang, Jae-Chol Lee, Sung-Kil Hong, Dong-Seob Jeong -
Publication number: 20120073992Abstract: Disclosed are a biosensor, a method of producing the same, and a method of detecting a biomaterial through the biosensor. The biosensor includes a substrate, an insulating layer, source and drain electrodes formed on the insulating layer, a middle-discontinuous channel provided between the source and drain electrodes, and a detection area on which a detection target material is to be fixed, covering the middle-discontinuous channel.Type: ApplicationFiled: September 24, 2010Publication date: March 29, 2012Inventors: Jae-Ho Kim, Sung-Wook Choi, Jae-Hyeok Lee, Gwang Hyeon Nam
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Patent number: 8138502Abstract: To prevent a point defect and a line defect in forming a light-emitting device, thereby improving the yield. A light-emitting element and a driver circuit of the light-emitting element, which are provided over different substrates, are electrically connected. That is, a light-emitting element and a driver circuit of the light-emitting element are formed over different substrates first, and then electrically connected. By providing a light-emitting element and a driver circuit of the light-emitting element over different substrates, the step of forming the light-emitting element and the step of forming the driver circuit of the light-emitting element can be performed separately. Therefore, degrees of freedom of each step can be increased, and the process can be flexibly changed. Further, steps (irregularities) on the surface for forming the light-emitting element can be reduced than in the conventional technique.Type: GrantFiled: July 25, 2006Date of Patent: March 20, 2012Assignee: Semiconductor Energy Laboratory Co., Ltd.Inventors: Osamu Nakamura, Miyuki Higuchi, Yasuko Watanabe, Yasuyuki Arai
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Patent number: 8137823Abstract: The present invention relates to a novel anthracene derivative, a process for preparation thereof, and an organic electronic device using the same. The anthracene derivative according to the present invention can serve as a hole injecting material, a hole transporting material, an electron injecting material, an electron transporting material, or a light emitting material, and particularly as a light emitting host or dopant, especially as a green host or dopant singly, in an organic electronic device including an organic light emitting device. The organic electronic device according to the present invention exhibits excellent characteristics in efficiency, drive voltage, life time, and stability.Type: GrantFiled: March 15, 2007Date of Patent: March 20, 2012Assignee: LG Chem, Ltd.Inventors: Ji-Eun Kim, Jae-Chol Lee, Tae-Yoon Park, Dae-Woong Lee, Kong-Kyeom Kim, Sung-Kil Hong, Hye-Young Jang, Yeon-Hwan Kim, Dong-Seob Jeong
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Patent number: 8053761Abstract: Disclosed are methods of fabricating organic thin film transistors composed of a substrate, a gate electrode, a gate insulating film, metal oxide source/drain electrodes, and an organic semiconductor layer. The methods include applying a sufficient quantity of a self-assembled monolayer compound containing a live ion to the surfaces of the metal oxide electrodes to form a self-assembled monolayer. The presence of the live ion at the interface between the metal oxide electrodes and the organic semiconductor layer modifies the relative work function of these materials. Further, the presence of the self-assembled monolayer on the gate insulating film tends to reduce hysteresis. Accordingly, organic thin film transistors fabricated in accord with the example embodiments tend to exhibit improved charge mobility, improved gate insulating film properties and decreased hysteresis associated with the organic insulator.Type: GrantFiled: November 28, 2006Date of Patent: November 8, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Jung Seok Hahn, Bon Won Koo, Joo Young Kim, Kook Min Han, Sang Yoon Lee
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Patent number: 8003976Abstract: An organic light-light conversion device excellent in device characteristics, comprising a light sensing unit having a layer including a photo-conductive organic semiconductor developing a photo-current multiplication phenomenon by light irradiation, and a light emitting unit having a layer including an electroluminescent organic semiconductor emitting light by current injection, characterized in that at least one of the photo-conductive organic semiconductor and an electroluminescent organic semiconductor is polymer semiconductor. An imaging intensifier consisting of a plurality of arranged above organic light-light conversion devices. An optical sensor provided with a means of measuring and outputting voltages applied to the above organic light-light conversion device and to the opposite ends of a layer including the electroluminescent organic semiconductor.Type: GrantFiled: December 16, 2004Date of Patent: August 23, 2011Assignee: Sumitomo Chemical Company, LimitedInventors: Kenichi Nakayama, Masaaki Yokoyama, Masato Ueda
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Patent number: 8003417Abstract: A method of manufacturing an organic electroluminescent display device may comprise forming transistors on a substrate, forming a lower electrode over an insulating layer, forming an insulating layer on the transistors, the lower electrode being coupled to a source or a drain of each of the transistors, forming a bank layer on the lower electrode, the bank layer having openings to expose part of the lower electrode, forming a bus electrode on the bank layer, forming an organic light-emitting layer to cover the lower electrode, the bank layer, and the bus electrode, patterning the organic light-emitting layer using a laser, thereby exposing the bus electrode placed on the bank layer, and forming an upper electrode on the organic light-emitting layer so that the upper electrode comes into contact with the exposed bus electrode.Type: GrantFiled: October 29, 2009Date of Patent: August 23, 2011Assignee: LG Display Co., Ltd.Inventors: Fengjin Li, Jaeyoung Lee, Taeyeon Yoo
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Patent number: 7935432Abstract: The organic electroluminescent device of the present invention has at least one organic compound layer containing a light-emitting layer between an anode and a cathode. The organic compound layer contains a fluorescent light-emitting compound emitting fluorescence at a time that voltage is applied and an amplifying agent. A phosphorescent light-emitting maximum wavelength of the amplifying agent is 500 nm or less, and the light emission at a time that voltage is applied is derived mainly from light emission of a fluorescent compound. In order to amplify intensity of emission at a time that voltage is applied It is preferable that the amplifying agent be capable of amplifying the number of singlet excitons generated at a time that voltage is applied.Type: GrantFiled: September 17, 2004Date of Patent: May 3, 2011Assignee: Fujifilm CorporationInventor: Tatsuya Igarashi
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Patent number: 7816671Abstract: Disclosed is an organic thin film transistor including a phosphate-based self-assembled monolayer and a method of manufacturing the same. Example embodiments relate to an organic thin film transistor, which may include a single bond type phosphate-based self-assembled monolayer without intermolecular cross-linking, between source/drain electrodes and an organic semiconductor layer, thus exhibiting improved electrical properties, e.g., increased charge mobility, and to a method of manufacturing the organic thin film transistor.Type: GrantFiled: February 7, 2007Date of Patent: October 19, 2010Assignee: Samsung Electronics Co., Ltd.Inventors: Jeong Il Park, Jung Seok Han, Sang Yoon Lee, Eun Jeong Jeong, Kook Min Han
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Patent number: 7714328Abstract: The present invention provides an electro-optical device capable of achieving an increased light emission efficiency and an enhanced visibility. An organic electroluminescents (EL) display device has a plurality of material layers including a luminescent layer. In a plurality of material layers layered in the direction of light emission from the luminescent layer, first and second insulating interlayers are disposed between a substrate, which is positioned at the outermost surface, and the luminescent layer. The first and second insulating interlayers have a refractive index lower than that of the substrate. Accordingly, by forming predetermined materials having a low refractive index, the resulting low refractive index layers have a low dielectric constant, and consequently, the capacity between wires can be reduced.Type: GrantFiled: March 28, 2007Date of Patent: May 11, 2010Assignee: Seiko Epson CorporationInventor: Takashi Miyazawa
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Patent number: 7390693Abstract: In a method of manufacturing an organic EL device by using an ink jet method, a discharge amount of an ink composition for a light emitting layer is made to be greater than a discharge amount of an ink composition for a hole injection/transportation layer, so that a film formation region of the light emitting layer becomes equal to, or greater than, a film formation region of the hole injection/transportation layer.Type: GrantFiled: January 6, 2005Date of Patent: June 24, 2008Assignee: Seiko Epson CorporationInventors: Shunichi Seki, Katsuyuki Morii