| Patent application number | Description | Published |
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| 20080231177 | Light-Emitting Device and Electronic Device - The present invention provides light-emitting devices having excellent characteristics and electronic devices having excellent characteristics, having such light-emitting devices. Specifically, the present invention provides a light-emitting device includes a first light-emitting element, a second light-emitting element, and a third light-emitting element which emit light having different color from each other. The first light-emitting element includes a first anode; a first cathode; and a first light-emitting layer and a second light-emitting layer between the first anode and the first cathode, wherein the first light-emitting layer includes a first high light-emitting substance and a first organic compound, and the second light-emitting layer includes the first high light-emitting substance and a second organic compound, wherein the first light-emitting layer is in contact with the first anode side of the second light-emitting layer, and wherein the first organic compound is an organic compound having a hole-transporting property and the second organic compound is an organic compound having an electron-transporting property. The second light-emitting element includes a second anode; a second cathode; and a third light-emitting layer and a layer for controlling carrier transfer between the second anode and the second cathode, wherein the third light-emitting layer includes a second high light-transmitting substance, wherein the layer for controlling carrier transfer includes a third organic compound and a fourth organic compound, and is provided between the third light-emitting layer and the second cathode, wherein the third organic compound is an organic compound having an electron-transporting property and the fourth organic compound is an organic compound having an electron-trapping property; and wherein the third organic compound is included more than the fourth organic compound in the layer for controlling carrier transfer. The third light-emitting element includes a third anode; a third cathode; and a fourth light-emitting layer, wherein the fourth light-emitting layer includes a fifth organic compound, a sixth organic compound, and a third high light-emitting substance, wherein the fifth organic compound is an organic compound having a hole-transporting property, and the sixth organic compound is an organic compound having an electron-transporting property, and wherein the third high light-emitting substance is a substance which emits phosphorescence. | 09-25-2008 |
| 20080233432 | Composition, Method for Fabricating Light-Emitting Element, Light-Emitting Element, Light-Emitting Device, and Electronic Device - Objects of the present invention are to provide a composition in which an organometallic complex is dissolved and a method for fabricating a light-emitting element using the composition, and to provide a light-emitting element, a light-emitting device, and an electronic device each fabricated using the composition in which the organometallic complex is dissolved. The present invention provides a composition that includes a solvent and an organometallic complex including a ligand having a pyrazine skeleton, bonded to a Group 9 or Group 10 element. A method for fabricating light-emitting elements, which is suitable for industrial application, can be realized by the application of the composition of the present invention to fabrication of a light-emitting element. Furthermore, a light-emitting element with high emission efficiency, a light-emitting device and electronic device with low power consumption can be realized by use of the composition. | 09-25-2008 |
| 20080261477 | METHOD FOR COLLECTING METAL - It is an object of the present invention to collect a scarce metal such as iridium from a light-emitting element which is no longer used. A method for collecting a metal is provided in which an organic metal compound which can emit visible light from a triplet excited state at room temperature is heated, or an EL layer of a light-emitting layer containing an organic metal compound which can emit visible light from a triplet excited state at room temperature is dissolved in a solvent to form a solution, and the solution is heated, irradiated with microwaves or treated with acid water. According to the above method, resources of metals such as iridium or platinum, which are scarce metals, can be utilized efficiently. | 10-23-2008 |
| 20080286604 | Organometallic Complex, Composition and Light Emitting Element Including the Organometallic Complex - To provide a novel organometallic complex, and light emitting elements, light emitting devices, and electronic devices which include the organometallic complex. In addition, to provide a composition in which the organometallic complex is dissolved and to provide a method for manufacturing light emitting elements using the composition. An organometallic complex has high solubility in a solvent. In the organometallic complex, the ligand including a pyrazine skeleton is bound to an atom belonging to Group 9 (Co, Rh, or Ir) or an atom belonging to Group 10 (Ni, Pd, or Pt). In addition, the light emission efficiency is high. Therefore, the organometallic complex is preferably used for manufacturing a light emitting element. | 11-20-2008 |
| 20080305361 | Organometallic Complex, and Light-Emitting Material, Light-Emitting Element, Light-Emitting Device and Electronic Device - The present invention provides a novel organometallic complex which emits green phosphorescence so as to enrich variations of phosphorescent materials for green color which is one of three primary colors. An organometallic complex comprising a structure represented by a general formula (G1) is provided. | 12-11-2008 |
| 20080312437 | Organometallic Complex, and Light-Emitting Element, Light-Emitting Device, and Electronic Device Using the Organometallic Complex - According to the present invention, a wider variation of organometallic complexes that can emit phosphorescence can be provided by applying, as a ligand, an organic compound from which a variety of derivatives can be easily synthesized. In particular, an organometallic complex having a sharp emission spectrum is provided. Further, an organometallic complex having high emission efficiency is provided. An organometallic complex represented by the general formula (G1) is provided. In the formula, Ar represents an aryl group, R represents an alkoxy group having 1 to 4 carbon atoms, and R | 12-18-2008 |
| 20090140643 | LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, AND ELECTRONIC DEVICE - A light-emitting element having high emission efficiency and long lifetime is provided. By manufacturing a light-emitting device using the light-emitting element, the light-emitting device having low power consumption and long lifetime is provided. The light-emitting element is manufactured in which a light-emitting layer is included between a first electrode serving as an anode and a second electrode serving as a cathode. The light-emitting layer includes a first organic compound having a hole-transporting property, a second organic compound having an electron-transporting property, and an organometallic complex including a dibenzo[f,h]quinoxaline skeleton as a ligand. Further, a light-emitting device is manufactured using the light-emitting element. | 06-04-2009 |
| 20090183982 | Method for Manufacturing Triarylpyrazine Derivative - A novel synthesis method of a triarylpyrazine derivative, in particular, a manufacturing method by which a triarylpyrazine derivative, in specific, a 2,3,5-triarylpyrazine derivative in which an aryl group at a 5-position includes a substituent having an electron-withdrawing property can be synthesized with high yield as compared to a conventional method is provided. By using a synthesis method in which a mixture including a 1-aryl-2-(methylsulfinyl)ethanone derivative, meso-1,2-diarylethylenediamine, and a dehydrogenation agent is irradiated with a microwave to be reacted, the above object is achieved. | 07-23-2009 |
| 20090322217 | ORGANOMETALLIC COMPLEX, AND LIGHTING APPARATUS, AND ELECTRONIC DEVICE USING THE ORGANOMETALLIC COMPLEX - Disclosed are an organometallic complex emitting red light with high color purity. An organometallic complex having a structure represented by the following general formula (G1) is provided. | 12-31-2009 |
| 20100059741 | Light-Emitting Element, Light-Emitting Device, and Electronic Device - To provide a light-emitting element with high light emission efficiency, a long lifetime, and reduced driving voltage. To provide a light-emitting element including an anode, a cathode, and a plurality of light-emitting layers which are in contact with each other so that a stacked structure is formed, between the anode and the cathode, in which the plurality of light-emitting layers are formed with a first light-emitting layer which is close to the anode and a second light-emitting layer which is close to the cathode, the first light-emitting layer and the second light-emitting layer each include a host material, a hole-transporting material, and a light-emitting material, and the concentration of the hole-transporting material in the first light-emitting layer is higher than the concentration of the hole-transporting material in the second light-emitting layer. | 03-11-2010 |
| 20100105902 | Organometallic Complex, and Light-Emitting Element, Light-Emitting Device, and Electronic Device Including the Organometallic Complex - An organometallic complex is provided by which favorable red-color light emission can be obtained. Further, an organometallic complex having a peak of light emission at about 620 nm is provided because the wavelength of light which is perceived as excellent red-color light is about 620 nm. Furthermore, an organometallic complex is provided by which red-color light emission with high luminous efficiency (cd/A) can be obtained. An organometallic complex represented by the following general formula (G2) and a light-emitting element, a light-emitting device, and an electronic device including the organometallic complex represented by the following general formula (G2) are provided. | 04-29-2010 |
| 20100117068 | Organometallic Complex, and Light Emitting Element and Electronic Appliance Using the Same - It is an object of the present invention to provide a substance which can emit red phosphorescence which is closer to the chromaticity coordinates of red according to the NTSC standard. The present invention provides an organometallic complex represented by the general formula (1), wherein each of R1 to R3 represents any one of hydrogen, a halogen group, an acyl group, an alkyl group, an alkoxyl group, an aryl group, a cyano group, and a heterocyclic group, and at least one of R | 05-13-2010 |
| 20100123127 | Light-Emitting Element and Light-Emitting Device - 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. | 05-20-2010 |
| 20100145044 | Organometallic Complex and Light-Emitting Element, Light-Emitting Device, and Electronic Device Using the Same - An organometallic complex having a structure represented by the general formula (G1) is synthesized and applied to a light-emitting element. | 06-10-2010 |
| 20100181905 | Organometallic Complex, and Light-Emitting Element, Light-Emitting Device, Electronic Device, and Lighting Device Using the Organometallic Complex - To provide a novel organometallic complex capable of emitting phosphorescence by using an organic compound with which a variety of derivatives can be easily synthesized as a ligand. In addition, to provide an organometallic complex which exhibits red emission. To provide an organometallic complex formed by ortho-metalation of an m-alkoxyphenyl pyrazine derivative represented by General Formula (G0) below with respect to an ion of a metal belonging to Group 9 or Group 10. In addition, to provide an organometallic complex which exhibits red emission formed by ortho-metalation of an m-alkoxyphenyl pyrazine derivative represented by General Formula (G0) below with respect to an ion of a metal belonging to Group 9 or Group 10. | 07-22-2010 |
| 20110001133 | ORGANOMETALLIC COMPLEX, AND LIGHT-EMITTING ELEMENT AND LIGHT-EMITTING DEVICE USING THE ORGANOMETALLIC COMPLEX - A material which can emit phosphorescence is disclosed. Further, a light-emitting element having good chromaticity is disclosed. An embodiment of the present invention is an organometallic complex including a structure as represented by the general formula (1): wherein R | 01-06-2011 |
| 20110024732 | LIGHT EMITTING ELEMENT AND LIGHT EMITTING - It is an object of the present invention to obtain an organometallic complex that is capable of converting an excited triplet state into luminescence, a light-emitting element that can be driven for a long time, is high in luminous efficiency, and has a favorable long lifetime, and a light-emitting device using the light-emitting element. The present invention provides a light-emitting element that has a pair of electrodes (an anode and a cathode) and a light-emitting layer between a pair of electrodes, where the light-emitting layer includes an organometallic complex represented by the following general formula (5) and one of a compound that has a larger energy gap than the organometallic complex and a compound that has a larger ionization potential and a smaller electron affinity than the organometallic complex, and provides a light-emitting device using the light-emitting device. | 02-03-2011 |
| 20110057560 | ORGANOMETALLIC COMPLEX, AND LIGHT-EMITTING ELEMENT AND LIGHT-EMITTING DEVICE USING THE SAME - It is an object of the present invention to provide an organometallic complex that can emit phosphorescence. In the following general formula (G | 03-10-2011 |
| 20110101854 | Organometallic Complex, Light-Emitting Element, Display Device, Electronic Device, and Lighting Device - Provided are organometallic complexes that can exhibit phosphorescence. One of the novel organometallic complexes is represented by General Formula (G1). In General Formula (G1), R | 05-05-2011 |
| 20110143474 | LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, ELECTRONIC APPLIANCE, AND METHOD OF MANUFACTURING THE SAME - A light-emitting element is provided which has a light-emitting layer between a first electrode and a second electrode, where the light-emitting layer has a first layer and a second layer; the first layer contains a first organic compound and a third organic compound; the second layer contains a second organic compound and the third organic compound; the first layer is provided to be in contact with the second layer on the first electrode side; the first organic compound is an organic compound with an electron transporting property; the second organic compound is an organic compound with a hole transporting property; the third organic compound has an electron trapping property; and light emission from the third organic compound can be obtained when voltage is applied to the first electrode and the second electrode so that the potential of the first electrode is higher than that of the second electrode. | 06-16-2011 |
| 20110163665 | ORGANOMETAL COMPLEX AND LIGHT-EMITTING ELEMENT USING THE SAME - An organometallic complex according to the present invention comprises a structure represented by the following general formula (1). In the formula, R | 07-07-2011 |
