Polycondensed Aromatic Or Heteroaromatic Compound (e.g., Pyrene, Perylene, Pentacene) (epo) Patents (Class 257/E51.049)
-
Publication number: 20060286403Abstract: An organic light emitting diode is provided. The organic light emitting diode includes a cathode, an anode, and an electron-transporting layer disposed therebetween, wherein the electron-transporting layer comprises a fluorene derivative having electron/hole mobility exceeding 10-7 cm2v-1s-1 and a metal-containing material. The invention also provides a method of fabricating the organic light emitting diode.Type: ApplicationFiled: August 8, 2005Publication date: December 21, 2006Inventor: Chung-Chun Lee
-
Patent number: 7151007Abstract: The present invention relates to a process for the preparation of doped organic semiconductor materials having an increased charge carrier density and effective charge carrier mobility, by doping with a dopant, a process in which after mixing the dopant into the organic semiconductor material, hydrogen, carbon monoxide, nitrogen or hydroxyl radicals are split off and at least one electron is transferred to the semiconductor material or from the semiconductor material. The process is distinguished by the fact that an uncharged organic compound is used as dopant. Doped organic semiconductor materials are obtainable by one of the processes. The semiconductor materials are distinguished by the fact that the doped layer contains cations of at least one organic compound, the uncharged form of the organic compound being unstable in air.Type: GrantFiled: August 17, 2004Date of Patent: December 19, 2006Assignee: NovaLED GmbHInventors: Ansgar Werner, Fenghong Li, Martin Pfeiffer
-
Publication number: 20060280965Abstract: An organic emissive layer is provided. Also provided is a device in which the organic emissive layer is disposed between an anode and a cathode. The organic emissive layer includes a phosphorescent material and triphenylene compound or a compound having a repeat unit having a triphenylene moiety. The triphenylene is optionally substituted. The substituents may be the same or different and each is selected from the group consisting of alkyl, aryl, fused aryl, substituted aryl, alkenyl, alkynyl, and heteroalkyl. Triphenylene compounds are also provided.Type: ApplicationFiled: May 31, 2006Publication date: December 14, 2006Inventors: Raymond Kwong, Bert Alleyne
-
Publication number: 20060269782Abstract: An organic light-emitting device (OLED) includes an anode, a cathode, and a light-emitting layer disposed between the anode and the cathode, wherein the light-emitting layer includes a dominant host and a dopant. The device also includes an electron-transporting layer disposed in direct contact with the light-emitting layer on the cathode side, wherein the electron-transporting layer includes an electron-transporting material having the same chromophore as that of the dominant host in the light-emitting layer, wherein the electron-transporting material constitutes more than 50% by volume of the electron-transporting layer, and wherein the electron-transporting material has a greater reduction potential than that of the dominant host in the light-emitting layer.Type: ApplicationFiled: May 25, 2005Publication date: November 30, 2006Inventors: Liang-Sheng Liao, Scott Conley, Lelia Cosimbescu, Viktor Jarikov
-
Publication number: 20060263631Abstract: An organic light-emitting device is provided that includes an emission layer containing a phosphorescent dopant and a bipolar phosphorescent host interposed between a first electrode and a second electrode. The bipolar phosphorescent host is a compound represented by formula 1: A-C-B ??(1) where A is a hole transport unit, B is an electron transport unit, and C is a bond or a linking group. The bipolar compound can transport both holes and electrons. The organic light-emitting device has high efficiency and a long lifetime.Type: ApplicationFiled: November 4, 2005Publication date: November 23, 2006Inventors: Jun-Yeob Lee, Jang-Hyuk Kwon, Min-Seung Chun, Yong-Joong Choi
-
Publication number: 20060246315Abstract: An OLED device comprises, in sequence, an anode, a light-emitting layer that comprises a phosphorescent light-emitting organometallic compound, a hole-blocking layer, and a cathode, and between the hole-blocking layer and the cathode, a further layer containing: a) a first compound that has the lowest LUMO value of the compounds in the layer, the amount being greater than or equal to 10% by volume and less than 100% by volume of the layer; b) at least one second compound that is a low voltage electron transport material, exhibiting a higher LUMO value than the first compound, the total amount of said compound(s) being less than or equal to 90% by volume and more than 0% by volume of the layer. Such a device provides improved drive voltage.Type: ApplicationFiled: April 27, 2005Publication date: November 2, 2006Inventors: William Begley, Tukaram Hatwar, Joseph Deaton, Christopher Brown, Natasha Andrievsky, Marina Kondakova
-
Publication number: 20060240283Abstract: An organic electroluminescent device (OELD) is provided. The OELD includes a substrate, an anode, a cathode and an emissive layer. The anode and the cathode opposite to the anode are disposed over the substrate. The emissive layer is disposed between the anode and the cathode. The emissive layer includes a light-emitting material. The chemical structure of the light-emitting material represented by the formula [1]: The chemically structure L is selected from a group consisting of the chemical structures AA, BB, AB, and the combination thereof. The chemical structure A of the formula [2]: The chemical structure X is selected from the group 4A to 6A elements of the periodic table. The chemical structure B is aromatic hydrocarbons having n benzene, n is a integer of 1 to 8.Type: ApplicationFiled: September 7, 2005Publication date: October 26, 2006Inventors: Chia-Liang Tai, Chen-Ping Yu, Ying-Ju Su
-
Publication number: 20060240279Abstract: An organic light emitting diode (OLED) architecture in which efficient operation is achieved without requiring a blocking layer by locating the recombination zone close to the hole transport side of the emissive layer. Aryl-based hosts and Ir-based dopants with suitable concentrations result in an efficient phosphorescent OLED structure. Previously, blocking layer utilization in phosphorescent OLED architectures was considered essential to avoid exciton and hole leakage from the emissive layer, and thus keep the recombination zone inside the emissive layer to provide high device efficiency and a pure emission spectrum.Type: ApplicationFiled: April 21, 2005Publication date: October 26, 2006Inventors: Vadim Adamovich, Michael Weaver, Raymond Kwong
-
Patent number: 7125614Abstract: An electroluminescent device includes an anode, a cathode and at least one organic layer sandwiched between the anode and the cathode, the organic layer including a light-emitting layer which includes compound C1.Type: GrantFiled: January 14, 2004Date of Patent: October 24, 2006Assignee: Samsung SDI Co., Ltd.Inventors: Satoru Toguchi, Atsushi Oda, Hitoshi Ishikawa
-
Publication number: 20060222886Abstract: One embodiment of the present invention provides an organic light emitting device comprising an anode, a cathode, and an organic layer disposed between the anode and the cathode, wherein the organic layer comprises an arylpyrene compound. In another embodiment, the present invention also provides organic light emitting devices comprising an anode, a cathode, and an organic layer disposed between the anode and the cathode, wherein the organic layer comprises an arylpyrene compound doped in an anthracene host, preferably ADN. Another embodiment of the present invention provides specific arylpyrene compounds.Type: ApplicationFiled: April 4, 2005Publication date: October 5, 2006Inventors: Raymond Kwong, Matthew Nugent
-
Publication number: 20060222888Abstract: Provided are an organic light-emitting device that includes a light-emitting layer interposed between a first electrode and a second electrode and a method of manufacturing the same. The light-emitting layer includes a mixed host of a naphthyl anthracene-based compound and a bianthracene-based compound and a dopant. The use of the mixed host of a naphthyl anthracene-based compound and a bianthracene-based compound and a dopant to form the light-emitting layer results in trapping of charges in the light-emitting layer. As a result, the organic light-emitting device is more stabilized and thus has a longer lifetime, excellent color characteristics, and high efficiency.Type: ApplicationFiled: March 9, 2006Publication date: October 5, 2006Inventors: Jun-Yeob Lee, Min-Seung Chun
-
Publication number: 20060210830Abstract: A aromatic amine derivative having an specific structure having a diphenyl amino group, and two or more of substituent bonding to benzene ring thereof, and in an organic electroluminescence device which comprises at least one organic thin film layer comprising a light emitting layer sandwiched between a pair of electrode consisting of an anode and a cathode, at least one of the organic thin film layer comprises the aromatic amine derivative singly or a component for a mixture thereof. The organic electroluminescence device exhibiting a long lifetime and high current efficiency as well as emitting blue light with high color purity, and also the aromatic amine derivative for realizing the organic EL device are provided.Type: ApplicationFiled: January 23, 2006Publication date: September 21, 2006Applicant: Idemitsu Kosan Co., Ltd.Inventors: Masakazu Funahashi, Mineyuki Kubota
-
Publication number: 20060204786Abstract: An OLED device comprises a cathode, an anode, a light emitting layer, and on the cathode side of said emitting layer, a further layer, wherein the further layer is an electron-transporting layer containing: a) a first compound that has the lowest LUMO value of the compounds in the layer, the amount being greater than 10% by volume and less than 100% by volume of the layer; b) at least one second compound that is a low voltage electron transport material, exhibiting a higher LUMO value than the first compound, the total amount of said compound(s) being less than 90% by volume and more than 0% by volume of the layer; provided, that when paragraphs a) and b) each contain a single compound and the compound of paragraph a) is tris(8-quinolinolato)aluminum(III), then the compound of paragraph b) is not 4,7-diphenyl-1,10-phenanthroline; and provided further that when paragraphs a) and b) each contain a single compound and the compound of paragraph b) is tris(8-quinolinolato)aluminum(III), then the compound of paragrType: ApplicationFiled: August 30, 2005Publication date: September 14, 2006Inventors: William Begley, Tukaram Hatwar, Ralph Young, Natasha Andrievsky
-
Publication number: 20060204784Abstract: An OLED device comprises a cathode, an anode, a light emitting layer, and on the cathode side of said emitting layer, a further layer containing a) a first compound that has the lowest LUMO value of the compounds in the layer, in an amount greater than or equal to 10% by volume and less than 100% by volume of the layer; b) at least one second compound exhibiting a higher LUMO value than the first compound, where at least one of the second compounds is a low voltage electron transport material, the total amount of such second compounds(s) is less than or equal to 90% by volume of the layer; and c) a metallic material based on a metal having a work function less than 4.2 eV.Type: ApplicationFiled: March 10, 2005Publication date: September 14, 2006Inventors: William Begley, Tukaram Hatwar, Ralph Young, Natasha Andrievsky
-
Publication number: 20060204783Abstract: An OLED device comprises a cathode, an anode, and having therebetween a light emitting layer containing (a) an anthracene material represented by Formula (1): wherein: Ar2, Ar9, and Ar10 independently represent an aryl group, v1, v3, v4, v5, v6, v7, and v8 independently represent hydrogen or a substituent; and (b) a light emitting dopant; the device further containing on the cathode side of the light emitting layer an electron transporting layer that contains a minor portion or no AlQ3. The device exhibits improved color or operating voltage or both.Type: ApplicationFiled: March 10, 2005Publication date: September 14, 2006Inventors: Scott Conley, Michele Ricks, William Begley, Daniel Gisser
-
Publication number: 20060194074Abstract: An aromatic amine derivative with a specified structure whose benzene ring is bonded with a cycloalkyl group. An organic electroluminescence device which comprises at least one organic thin film layer comprising a light emitting layer sandwiched between a pair of electrode consisting of an anode and a cathode, wherein at least one of the organic thin film layer comprises the aromatic amine derivative singly or in combination. The organic EL device employing the aromatic amine derivative reveals practically sufficient luminance even under low applied voltage, exhibits an enhanced efficiency of light emission, and is resistant to degrade even after a long time usage demonstrating a prolonged lifetime.Type: ApplicationFiled: January 23, 2006Publication date: August 31, 2006Applicant: Idemitsu Kosan Co., Ltd.Inventor: Masakazu Funahashi
-
Patent number: 7083863Abstract: A light-emitting element having at least a light-emitting region arranged between a pair of electrodes is provided, in which the light-emitting region contains either (A) a light-emitting material, a compound capable of sustaining the charge transport, and a heavy metal as a mixture, or (B) a compound that is capable of sustaining the charge transport and that includes both of a portion for contributing to the charge transport and a portion for contributing to the light emission within the compound, and a heavy metal as a mixture. A method for producing the light-emitting element, and a display device in which a plurality of the light-emitting elements are used, are provided also.Type: GrantFiled: February 18, 2002Date of Patent: August 1, 2006Assignee: Matsushita Electric Industrial Co., Ltd.Inventors: Tetsuya Satou, Mikiko Matsuo, Hisanori Sugiura, Tsuyoshi Uemura
-
Patent number: 7083867Abstract: An organic electroluminescent element contains a positive electrode, a negative electrode, and a thin organic layer arranged between the positive electrode and the negative electrode, wherein the thin organic layer comprises, as a luminescent material, a peropyrene compound represented by following Structural Formuala (1): wherein R1, R6, R8 and R13 may be the same as or different from one another and each represent a group represented by following Structural Formula (2); and R2, R3, R4, R5, R7, R9, R10, R11, R12 and R14 each represent hydrogen atom or a substituent: wherein R15 and R16 may be the same as or different from each other and each represent one of hydrogen atom, an alkyl group and an aryl group, where R15 and R16 may be bound to each other directly or indirectly.Type: GrantFiled: May 11, 2005Date of Patent: August 1, 2006Assignee: Fuji Photo Film Co., Ltd.Inventors: Wataru Sotoyama, Tasuku Sato, Hiroyuki Sato, Azuma Matsuura, Norio Sawatari, Toshiaki Narusawa
-
Patent number: 7083864Abstract: A light emitting device material comprising a compound represented by the following formula (1): wherein Ar11, Ar12 and Ar31 each represent an arylene group, Ar12, Ar22 and Ar32 each represent a substituent group or a hydrogen atom, provided that at least one among Ar11, Ar21, Ar31, Ar12, Ar22 and Ar32 has a condensed-ring arene or heteroarene structure, and Ar represents a trivalent arene or heteroarene group.Type: GrantFiled: August 26, 2003Date of Patent: August 1, 2006Assignee: Fuji Photo Film Co., Ltd.Inventor: Tatsuya Igarashi
-
Publication number: 20060166036Abstract: An organic light-emitting diode. The organic light-emitting diode includes a cathode, an anode, and an emitting layer disposed between the cathode and the anode, wherein the emitting layer comprises a bipolar compound and an assistant dopant. The invention also provides a display comprising the organic light-emitting diode.Type: ApplicationFiled: April 28, 2005Publication date: July 27, 2006Inventor: Chung-Chun Lee
-
Publication number: 20060163562Abstract: Conductor material for LEDs for improving the light outcoupling, wherein the conductor material is selected from the group comprising hole conductor material, electron conductor material and/or emitter material, the conductor material comprises at least one conductive fluorinated organic substance having at least one fluorinated alkyl substituent, one fluorinated alkenyl substituent and/or one fluorinated alkynyl substituent, wherein at least two fluorine atoms are bonded to at least one carbon atom of the fluorinated substituent, and the conductive fluorinated organic substance has a refractive index of >_1.30 and >_1.55.Type: ApplicationFiled: June 24, 2004Publication date: July 27, 2006Applicant: Koninklijke Philips Electronics N.V.Inventor: Herbert Boerner
-
Publication number: 20060159952Abstract: An OLED device having at least one light-emitting layer including at least first and second different host materials, wherein the first host material includes an anthracene derivative that can crystallize and the second host material includes a second anthracene derivative which does not crystallize, wherein the stability of the first host material is greater than the stability of the second host material, and the mixed first and second host materials reduce the crystallization effects of the first host material, and the stability of the mixed first and second host materials is improved relative to the stability of the second host material, and a light-emitting material.Type: ApplicationFiled: January 14, 2005Publication date: July 20, 2006Applicant: Eastman Kodak CompanyInventors: Michele Ricks, Lelia Cosimbescu
-
Publication number: 20060154107Abstract: Asymmetric pyrene derivatives having specific structure. An organic EL device comprising at least one organic thin film layer including a light emitting layer sandwiched between a pair of electrode consisting of an anode and a cathode, wherein the organic thin film layer comprises at least one kind selected from the aforementioned asymmetric pyrene derivatives singly or as a component of mixture thereof. An organic EL device exhibiting a great efficiency of light emission and having a long lifetime, and also asymmetric pyrene derivatives for realizing the organic EL device are provided.Type: ApplicationFiled: November 21, 2005Publication date: July 13, 2006Applicant: Idemitsu Kosan Co., Ltd.Inventors: Mineyuki Kubota, Masakazu Funahashi, Chishio Hosokawa
-
Publication number: 20060134456Abstract: There are provided oligoarylene derivatives capable of emitting blue light at high luminous efficiency which are represented by the following general formulae (1) to (4): Ar1-Ch-Ar2 ??(1) Ch1-L-Ch2 ??(2) Ar3-(L1)a-Ch3-(L2)b-Ar4 ??(3) Ar5-Ch4-(Ar7)n-L3-(Ar8)m-Ch5-Ar6 ??(4) wherein Ch, Ch1 and Ch2 are respectively a group containing at least one substituted or unsubstituted condensed aromatic ring having 14 to 20 nuclear atoms; Ch3, Ch4 and Ch5 are respectively a substituted or unsubstituted arylene group having 14 to 20 nuclear atoms; Ar1, Ar2, Ar3, Ar4, Ar5 and Ar6 are respectively a substituted or unsubstituted aryl group having 5 to 30 nuclear atoms; Ar7 and Ar8 are respectively a substituted or unsubstituted arylene group having 5 to 30 nuclear atoms; L1, L2 and L3 are respectively a connecting group; and a, b, n and m are respectively an integer of 0 to 1, as well as organic electroluminescent devices using the same.Type: ApplicationFiled: August 7, 2003Publication date: June 22, 2006Applicant: IDEMITSU KOSAN CO., LTDInventors: Hidetsugu Ikeda, Masahide Matsuura, Hisayuki Kawamura
-
Publication number: 20060127698Abstract: A white organic electroluminescent device (1) including an emitting layer (5, 6 and 7) interposed between an anode (2) and a cathode (9), the emitting layer (5, 6 and 7) emitting blue light, green light and red light, the emitting layer (6) containing a green dopant that is an aromatic amine compound represented by formula (1), wherein A1, A2 and R12 are a hydrogen atom, an alkyl group, an aryl group, a cycloalkyl group, an alkoxy group, an aryloxy group, an arylamino group, an alkylamino group or a halogen atom; d and e are independently 1 to 5; h is 1 to 9; R11 is a secondary or tertiary alkyl or cycloalkyl group; f is 1 to 9; g is 0 to 8 and f+g+h is 2 to 10.Type: ApplicationFiled: October 21, 2005Publication date: June 15, 2006Applicant: Idemitsu Kosan Co., Ltd.Inventors: Hiroshi Tokailin, Hitoshi Kuma, Mineyuki Kubota, Masakazu Funahashi
-
Publication number: 20060105198Abstract: A method for selecting two different light-emitting materials for use in an OLED device, each of which produces different color light, which combine to produce white light. Each light emitting material has its own point on a chromaticity diagram, and the light-emitting materials are selected such that, when a line is drawn between the first point and the second point, it passes through a desired white area defined on a chromaticity diagram.Type: ApplicationFiled: November 17, 2004Publication date: May 18, 2006Inventors: Jeffrey Spindler, Tukaram Hatwar, Michele Ricks
-
Publication number: 20060051617Abstract: The organic electroluminescence device emits a stable red light with high luminance. In the organic electroluminescence device, at least a part of an organic layer (5), (5a), or (5b) having a light emitting area includes a mixture containing at least one of the aminostyryl compound represented by the following general formula [I] or [II], Y1—CH?CH—X1—CH?CH—Y2??General formula [I]: Y3—CH?CH—X2??General formula [II]: [wherein in the general formulas, X1, X2 represents an aryl group such as anthracene, Y1, Y2, Y3 represents an aryl amino group and the like.Type: ApplicationFiled: October 27, 2005Publication date: March 9, 2006Inventors: Tadashi Ishibashi, Mari Ichimura, Shinichiro Tamura, Naoyuki Ueda
-
Publication number: 20060051612Abstract: The device according to the invention is a device having organic thin films containing a light-emitting layer between an anode and a cathode that emits light by application of electric energy, characterized in that the light-emitting device contains at least a compound having the basic skeleton represented by the following General Formula (1) or (2). Use of the condensed polycyclic compound according to the invention allows production of high-brightness, high-efficiency light-emitting device superior in color purity.Type: ApplicationFiled: January 16, 2004Publication date: March 9, 2006Inventors: Masaaki Ikeda, Takaaki Kurata, Teppei Tsuchida, Chihaya Adachi
-
Publication number: 20060052612Abstract: The invention relates to novel compounds containing 2,1,3-benzothiadiazole. Said compounds can be used as active components (=functional materials) in a series of different applications that can be attributed in the broadest sense to the electronics industry. The inventive compounds are defined by the formulae (I), (II), (III), (IV), (V), (VI), (VI), (VIII), (IX), (X) and (XI).Type: ApplicationFiled: June 14, 2003Publication date: March 9, 2006Applicant: Covion Organic Semiconductors GmbH Intellectual Property GroupInventors: Philipp Stossel, Amir Parham, Horst Vestweber, Hubert Spreitzer