Patents by Inventor Shinichiro Tamura
Shinichiro Tamura has filed for patents to protect the following inventions. This listing includes patent applications that are pending as well as patents that have already been granted by the United States Patent and Trademark Office (USPTO).
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Patent number: 8877349Abstract: Provided are an organometallic complex providing highly efficient phosphorescence and an organic electroluminescence device using the same. The organometallic complex can be used to form an organic layer of the organic electroluminescence device, efficiently emits light of a wavelength corresponding to red light, and has high brightness and low operating voltage.Type: GrantFiled: December 18, 2006Date of Patent: November 4, 2014Assignee: Samsung Display Co., Ltd.Inventors: Das Rupasree Ragini, Che-Un Yang, Young-Hun Byun, O-Hyun Kwon, Lyong-Sun Pu, Shinichiro Tamura, Woon-Jung Paek, Myeong-Suk Kim, Hee-Kyung Kim, Jong-Jin Park
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Patent number: 8481173Abstract: Provided are an organometallic complex providing highly efficient phosphorescence and an organic electroluminescence device using the organometallic complex represented by Formula 1: MLmL?n where M is Ir, Os, Pt, Pb, Re, Ru or Pd, L and L? are different bidentate ligands, m is 1, 2 or 3, and n is 3?m. The organometallic complex can be used to form an organic layer of the organic electroluminescence device, efficiently emits light of a wavelength corresponding to red light, and has high brightness and low operating voltage.Type: GrantFiled: December 18, 2006Date of Patent: July 9, 2013Assignee: Samsung Display Co., Ltd.Inventors: Das Rupasree Ragini, Hee-Kyung Kim, O-Hyun Kwon, Myeong-Suk Kim, Shinichiro Tamura, Jong-Jin Park, Che-Un Yang, Yi-Yeol Lyu, Young-Hun Byun
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Patent number: 8362683Abstract: An organic light emitting display apparatus includes a plurality of sub-pixels, each of the sub-pixels having a first electrode, a second electrode facing the first electrode, and an intermediate layer disposed between the first and second electrodes, the intermediate layer having a plurality of layers including an organic emission layer, at least one layer of the plurality of layers in the intermediate layer being commonly shared by two sub-pixels arranged in a first direction and by at least two sub-pixels arranged in a second direction perpendicular to the first direction.Type: GrantFiled: March 2, 2011Date of Patent: January 29, 2013Assignee: Samsung Display Co., Ltd.Inventors: Shinichiro Tamura, Hyo-Seok Kim, Byoung-Ki Choi
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Patent number: 8227093Abstract: Provided is a cyclometalated transition metal complex represented by Formula 1, Formula 2 or Formula 3: By including a new ancillary ligand, the cyclometalated transition metal complex can efficiently emit red light using a phosphor by intersystem crossing (ISC) of excitons to triplet states and then metal to ligand charge transfer (MLCT). An organic light emitting device prepared using the transition metal compound shows high luminous efficiency and high external quantum efficiency.Type: GrantFiled: December 5, 2006Date of Patent: July 24, 2012Assignee: Samsung Mobile Display Co., Ltd.Inventors: Young-Hun Byun, Hee-Kyung Kim, Lyong-Sun Pu, Shinichiro Tamura, Das Rupasree Ragini, Jong-Jin Park, Byoung-Ki Choi, Yi-Yeol Lyu, O-Hyun Kwon, Young-Mok Son
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Patent number: 8102118Abstract: An organic light emitting device (OLED) having increased light output efficiency and a wide color gamut, and a color display apparatus employing the OLED, includes: a substrate; a reflective electrode formed on the substrate; an organic light emitting layer formed on the reflective electrode; a semi-transparent or transparent electrode formed on the organic light emitting layer; and an optical path control layer formed on the semi-transparent or transparent electrode and formed of a light transmitting material. In the OLED, resonators are formed between the reflective electrode and the semi-transparent or transparent electrode, between the reflective electrode and the top surface of the optical path control layer, and between the top surface of the semi-transparent or transparent electrode and the top surface of the optical path control layer, respectively, therefore, as an optical mode output to the exterior of the optical path control layer, at least two multiple resonances are generated.Type: GrantFiled: May 30, 2008Date of Patent: January 24, 2012Assignees: Samsung Electronics Co., Ltd., Samsung Mobile Display Co., Ltd.Inventors: Sung-hun Lee, Shinichiro Tamura, Sang-yeol Kim, Mu-gyeom Kim, Jung-bae Song
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Publication number: 20120007501Abstract: A display device is disclosed. The pixels of the display are formed so that a chromaticity range of the red organic emission layer satisfies an NTSC standard if ?pr=3.93557E?03 Wr2+1.07200E?01 Wr+6.10199E+02 and ?pr=610 nm, a chromaticity range of the green organic emission layer satisfies the NTSC standard if 3.33879E?03 Wg2+3.03246E?02 Wg+5.18496E+02??pg??5.09468E?03 Wg2+4.45905E?02 Wg+5.37887E+02, 515 nm??pg?540 nm, and Wg<50 nm, a chromaticity range of the blue organic emission layer satisfies the NTSC standard if ?2.59294E?03 Wb2+2.59334E?02 Wb+4.64771E+02??pb??5.24375E?03 Wb2+9.70218E?02 Wb+4.71672E+02, 450 nm??pb?480 nm, and Wb<70 nm, and at least one of the red organic emission layer, the green organic emission layer, and the blue organic emission layer satisfies the NTSC standard.Type: ApplicationFiled: July 7, 2011Publication date: January 12, 2012Applicant: Samsung Mobile Display Co., Ltd.Inventors: Shinichiro Tamura, Byoung-Ki Choi, Myeong-Suk Kim, Sang-Yeol Kim, Sung-Hun Lee
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Patent number: 8053091Abstract: Provided are a hyperbranched polymer represented by Formula 1 below, an organic light-emitting diode including an organic layer including the hyperbranched polymer, and a method of manufacturing the organic light-emitting diode: For a detailed description about Formula 1, the Detailed Description of the Invention may be referred to. The hyperbranched polymer is excellent in view of hole injection capability and/or electron blocking capability and adhesion with an electrode, and thus, the organic light-emitting diode including the organic layer including the hyperbranched polymer can have good electrical properties.Type: GrantFiled: March 24, 2008Date of Patent: November 8, 2011Assignee: Samsung Mobile Display Co., Ltd.Inventors: Tae-Woo Lee, Jong-Jin Park, Shinichiro Tamura, Masa-aki Kakimoto
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Patent number: 8049420Abstract: An organic light emitting device according to an exemplary embodiment of the present invention includes: a substrate including a first region, a second region, and a third region; a thin film structure disposed on the substrate; a first color filter, a second color filter, and a third color filter formed on the thin film structure, and respectively corresponding to the first region, the second region, and the third region; a first light emitting member formed on the first region and the second region; and a second light emitting member disposed on the third region, wherein the first light emitting member has a maximum light emitting value in a wavelength range of about 500 nm to 800 nm, and the second light emitting member has a maximum light emitting value in a wavelength range of about 400 nm to 500 nm.Type: GrantFiled: June 19, 2009Date of Patent: November 1, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Shinichiro Tamura, Sung-Hun Lee
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Patent number: 8048537Abstract: Provided is a cyclometalated transition metal complex represented by Formula 1: The cyclometalated transition metal complex contains a new ancillary ligand having a carboxylate acid or the like connected to a hetero ring, so that it can efficiently emit red light from a phosphorous material through intersystem crossing (ISC) to form triplet excitons and then metal to ligand charge transfer (MLCT). An organic light emitting device manufactured using the transition metal complex shows excellent luminous efficiency and external quantum efficiency.Type: GrantFiled: December 6, 2006Date of Patent: November 1, 2011Assignee: Samsung Mobile Display Co., Ltd.Inventors: Young-Hun Byun, Hee-Kyung Kim, Das Rupasree Ragini, O-Hyun Kwon, Yi-Yeol Lyu, Lyong-Sun Pu, Shinichiro Tamura
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Patent number: 8025986Abstract: The present invention provides an organic electroluminescent element which is superior in luminance, reliability, and thermal stability and is capable of selectively emitting light with comparative long wavelengths such as red and good color purity and a light-emitting device or display device incorporated therewith. The organic electroluminescent element consists of a glass substrate (1), an anode (2), a hole transporting layer (10), an emitting layer (11), an electron transporting layer (12), and a cathode (3), which are sequentially laminated on top of the other. The emitting layer (11) is formed from a mixture composed of at least one species of the styryl compound represented by the general formula [I] below and a material with charge transporting capability. Y—CH?CH—X ??General formula [I] (where X denotes an aryl group (such as phenyl group) which has a substituent group (such as cyano group and methyl group), and Y denotes a group having a skeleton of aminophenyl group or the like.Type: GrantFiled: June 25, 2003Date of Patent: September 27, 2011Assignee: Sony CorporationInventors: Tadashi Ishibashi, Mari Ichimura, Shinichiro Tamura, Naoyuki Ueda
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Publication number: 20110220921Abstract: An organic light emitting display apparatus includes a plurality of sub-pixels, each of the sub-pixels having a first electrode, a second electrode facing the first electrode, and an intermediate layer disposed between the first and second electrodes, the intermediate layer having a plurality of layers including an organic emission layer, at least one layer of the plurality of layers in the intermediate layer being commonly shared by two sub-pixels arranged in a first direction and by at least two sub-pixels arranged in a second direction perpendicular to the first direction.Type: ApplicationFiled: March 2, 2011Publication date: September 15, 2011Inventors: Shinichiro Tamura, Hyo-Seok Kim, Byoung-Ki Choi
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Patent number: 7968214Abstract: Provided is a white organic light emitting device comprising an anode, a cathode, and an organic layer formed between the anode and the cathode, wherein the organic layer comprises one green emissive layer, one blue emissive layer, one red emissive layer, and one charge generating layer formed between any two of the foregoing green, blue and red emissive layers. The white organic light emitting device has a tandem structure providing the simplest structure for the three color light emissions of green, blue and red.Type: GrantFiled: November 28, 2007Date of Patent: June 28, 2011Assignee: Samsung Electronics Co., Ltd.Inventors: Tae-yong Noh, Junji Kido, Shinichiro Tamura, Euk-che Hwang
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Publication number: 20110133227Abstract: An organic light emitting diode device is disclosed. The organic light emitting diode device includes a light emitting layer which includes at least two blue light emitting units and at least one orange light emitting unit. Such a device exhibits excellent color characteristic and high luminance and efficiency, as well as a longer life span due to the materials used. In particular, the white light represents color of high color purity after it passes through a color filter.Type: ApplicationFiled: December 1, 2010Publication date: June 9, 2011Applicant: Samsung Mobile Display Co., Ltd.Inventors: Sung-Hun Lee, Shinichiro Tamura, Jung-Bae Song
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Patent number: 7901793Abstract: Provided are an organic light-emitting compound of Formula 1 and an organic light-emitting device using the organic light-emitting compound: where Ar, R1, R2, R3, R4, and R5 are the same as defined in the detailed description. The organic light-emitting device manufactured using the organic light-emitting compound has a low turn-on voltage and high efficiency and color purity.Type: GrantFiled: September 22, 2006Date of Patent: March 8, 2011Assignee: Samsung Mobile Display Co., Ltd.Inventors: Myeong-Suk Kim, Byoung-Ki Choi, Jong-Jin Park, Tae-Yong Noh, Lyong-Sun Pu, Jhun-Mo Son, Woon-Jung Paek, Young-Mok Son, O-Hyun Kwon, Che-Un Yang, Shinichiro Tamura
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Patent number: 7859186Abstract: A white organic light emitting device includes an anode, a cathode, a charge generation layer arranged between the anode and the cathode and an organic layer arrangement arranged between the anode and the cathode, the organic layer arrangement including a green light emitting layer, a blue light emitting layer, and a red light emitting layer, one of the green light emitting layer, the blue light emitting layer, and the red light emitting layer includes a first light emitting layer and second light emitting layer, the charge generation layer being arranged between the first light emitting layer and the second light emitting layer.Type: GrantFiled: March 3, 2008Date of Patent: December 28, 2010Assignee: Samsung Mobile Display Co., Ltd.Inventors: Tae-yong Noh, Shinichiro Tamura, Byoung-ki Choi, Myeong-suk Kim, Yu-jin Kim, Eun-sil Han
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Publication number: 20100156279Abstract: An organic light emitting device according to an exemplary embodiment of the present invention includes: a substrate including a first region, a second region, and a third region; a thin film structure disposed on the substrate; a first color filter, a second color filter, and a third color filter formed on the thin film structure, and respectively corresponding to the first region, the second region, and the third region; a first light emitting member formed on the first region and the second region; and a second light emitting member disposed on the third region, wherein the first light emitting member has a maximum light emitting value in a wavelength range of about 500 nm to 800 nm, and the second light emitting member has a maximum light emitting value in a wavelength range of about 400 nm to 500 nm.Type: ApplicationFiled: June 19, 2009Publication date: June 24, 2010Inventors: Shinichiro Tamura, Sung-Hun Lee
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Patent number: 7602117Abstract: Provided are a display device and a display unit having higher light extraction efficiency. An optical distance L1 between a maximum light-emitting position of a light-emitting layer and a first end portion satisfies L1=tL1+a1 and (2tL1)/?=??1/(2?)+m1. An optical distance L2 between the maximum light-emitting position and a second end portion satisfies L2=tL2+a2 and (2tL2)/?=??2/(2?)+m2.Type: GrantFiled: March 30, 2007Date of Patent: October 13, 2009Assignee: Sony CorporationInventors: Jiro Yamada, Nobutoshi Asai, Shinichiro Tamura
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Patent number: 7524991Abstract: An organic electroluminescent device includes an anode, a cathode, and an organic layer having a light-emitting area and arranged between the anode and the cathode. The organic layer contains in at least a part thereof at least one aminostyrylnaphthalene compound represented by the following formula [I], [II] or [III]: wherein R1, R2, R11, R12, R23 and R24 are each a phenyl or naphthyl group, R3, R4, R13, R14, R25 and R26 are each an electron attracting group such as a cyano group, and R5, R15 and R27 are each a substituent group such as an alkyl group.Type: GrantFiled: June 20, 2007Date of Patent: April 28, 2009Assignee: Sony CorporationInventors: Mari Ichimura, Tadashi Ishibashi, Shinichiro Tamura
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Publication number: 20090096359Abstract: An organic light emitting device (OLED) having increased light output efficiency and a wide color gamut, and a color display apparatus employing the OLED, includes: a substrate; a reflective electrode formed on the substrate; an organic light emitting layer formed on the reflective electrode; a semi-transparent or transparent electrode formed on the organic light emitting layer; and an optical path control layer formed on the semi-transparent or transparent electrode and formed of a light transmitting material. In the OLED, resonators are formed between the reflective electrode and the semi-transparent or transparent electrode, between the reflective electrode and the top surface of the optical path control layer, and between the top surface of the semi-transparent or transparent electrode and the top surface of the optical path control layer, respectively, therefore, as an optical mode output to the exterior of the optical path control layer, at least two multiple resonances are generated.Type: ApplicationFiled: May 30, 2008Publication date: April 16, 2009Inventors: Sung-hun Lee, Shinichiro Tamura, Sang-yeol Kim, Mu-gyeom Kim, Jung-bae Song
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Publication number: 20080297036Abstract: A white organic light emitting device includes an anode, a cathode, a charge generation layer arranged between the anode and the cathode and an organic layer arrangement arranged between the anode and the cathode, the organic layer arrangement including a green light emitting layer, a blue light emitting layer, and a red light emitting layer, one of the green light emitting layer, the blue light emitting layer, and the red light emitting layer includes a first light emitting layer and second light emitting layer, the charge generation layer being arranged between the first light emitting layer and the second light emitting layer.Type: ApplicationFiled: March 3, 2008Publication date: December 4, 2008Inventors: Tae-yong Noh, Shinichiro Tamura, Byoung-ki Choi, Myeong-suk Kim, Yu-jin Kim, Eun-sil Han