| Patent application number | Description | Published |
|---|
| 20090140641 | Quinoxaline Derivative and Light-Emitting Element, Light-Emitting Device, and Electronic Device Using Quinoxaline Derivative - An object is to provide a novel quinoxaline derivative. Another object is to provide a light-emitting element with low driving voltage. Another object is to provide a light-emitting element with low power consumption. Another object is to provide a light-emitting device and an electronic device with low power consumption by using such a light-emitting element. A quinoxaline derivative which has a structure in which at least one of carbon at a 2-position and carbon at a 3-position of quinoxaline, and carbon of 1,3,4-oxadiazole ring are bound via an arylene group is provided. | 06-04-2009 |
| 20090140642 | Quinoxaline Derivative, and Light-Emitting Element and Electronic Device Using the Same - An object is to provide a novel quinoxaline derivative. Another object is to provide a light-emitting element with low driving voltage and less power consumption. Further, another object is to provide a light-emitting device and an electronic device each consuming less power by using the light-emitting element. A quinoxaline derivative represented by a general formula (G11) is provided, in which at least one of carbon at a 2-position and carbon at a 3-position, and carbon at a 2-position of benzoxazole are bound via an arylene group. | 06-04-2009 |
| 20090184633 | Quinoxaline Derivative, and Light-Emitting Element, Light-Emitting Device, and Electronic Appliance Using the Quinoxaline Derivative - An object is to provide a novel quinoxaline derivative, a light-emitting element with low driving voltage, and a light-emitting element which consumes low power. Another object is to provide a light-emitting device and an electronic appliance which consume low power by using the above light-emitting element. A quinoxaline derivative represented by a general formula (G11) is provided, in which at least one of carbon at a 2-position and carbon at a 3-position of quinoxaline, and carbon at a 2-position of a 1H-benzimidazole ring are bonded to each other via an arylene group. | 07-23-2009 |
| 20090203704 | Quinoxaline Derivative, and Light-Emitting Element, Light-Emitting Device, and Electronic Device Using Quinoxaline Derivative - An object is to provide a novel quinoxaline derivative. Another object is to provide a light-emitting element with low driving voltage. Still another object is to provide a light-emitting element with low power consumption. Yet another object is to provide a light-emitting device and an electronic device each having low power consumption by using such a light-emitting element. A quinoxaline derivative is provided which has a structure in which at least one of carbon at a 2-position and carbon at a 3-position of quinoxaline, and carbon of a pyridine ring are bound via an arylene group. | 08-13-2009 |
| 20090284142 | Organic Compound, Benzoxazole Derivative, and Light-Emitting Element, light-Emitting Device, and Electronic Device Using the Benzoxazole Derivative - Novel benzoxazole derivatives are provided to reduce driving voltage of light-emitting elements, and to reduce power consumption of light-emitting elements, light-emitting devices, and electronic devices. A benzoxazole derivative represented by the general formula (G1) is provided. Since the benzoxazole derivative represented by the general formula (G1) has an electron-injecting property, the benzoxazole derivative can be suitably used for light-emitting elements, light-emitting devices, and electronic devices. | 11-19-2009 |
| 20090286985 | Benzoxazole Derivative, and Light-Emitting Element, Light-Emitting Device, and Electronic Device Using the Same - An object is to provide a novel benzoxazole derivative. Another object is to reduce driving voltage of a light-emitting element. Still another object is to reduce power consumption of a light-emitting element, a light-emitting device, and an electronic device. A benzoxazole derivative represented by General Formula (G1) is provided. The benzoxazole derivative represented by General Formula (G1) has an electron-injecting property and an electron-transporting property; accordingly, it can be favorably used for a light-emitting element, a light-emitting device, and an electronic device. | 11-19-2009 |
| 20100243959 | Derivative With Heteroaromatic Ring, and Light-Emitting Element, Light-Emitting Device, Lighting Device, and Electronic Device Using Derivative With Heteroaromatic Ring - A derivative with a heteroaromatic ring represented by General Formula (G1) is provided. R | 09-30-2010 |
| 20100244672 | Heterocyclic Compound, and Light-Emitting Element, Light-Emitting Device, Lighting Device, and Electronic Appliance Using Heterocyclic Compound - An object is to provide a novel heterocyclic compound having a bipolar property. Another object is to provide a light-emitting element, a light-emitting device, and an electronic appliance each having high emission efficiency. A heterocyclic compound represented by a general formula (G1), a light-emitting element, a light-emitting device, and an electronic appliance each formed using the heterocyclic compound represented by the general formula (G1) are provided. By use of the heterocyclic compound represented by the general formula (G1) to a light-emitting element, a light-emitting device, and an electronic appliance, the light-emitting element, the light-emitting device, and the electronic appliance can each have high emission efficiency. | 09-30-2010 |
| 20100244673 | Oxadiazole Derivative, and Light-Emitting Element, Light-Emitting Device, Electronic Device, and Lighting Device Using Oxadiazole Derivative - An object is to provide a novel oxadiazole derivative represented by General Formula (G1) as a substance having a high electron-transport property. In the formula, Ar | 09-30-2010 |
| 20110147792 | Heterocyclic Compound, Light-Emitting Element, Light-Emitting Device, Electronic Device and Lighting Device - Objects of the present invention are to provide the following: a novel heterocyclic compound which can be used as a material in which a light-emitting substance of a light-emitting layer in a light-emitting element is dispersed; a novel heterocyclic compound having a high electron-transport property; a light-emitting element having high current efficiency; and a light-emitting device, an electronic device and a lighting device each having reduced power consumption. Provided are a heterocyclic compound represented by General Formula (G1-1) or (G1-2) below, and a light-emitting element, a light-emitting device, an electronic device and a lighting device each including the heterocyclic compound. Such use of the heterocyclic compound represented by General Formula (G1-1) or (G1-2) makes it possible to provide a light-emitting element having high current efficiency, and a light-emitting device, an electronic device and a lighting device each having reduced power consumption. | 06-23-2011 |
