Patent application number | Description | Published |
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 |
20110284797 | LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE - An object is to provide a liquid crystal composition which exhibits a blue phase in a wide temperature range. Another object is to provide a liquid crystal composition which exhibits a blue phase, with which high contrast can be provided, in a liquid crystal display device. A liquid crystal composition which exhibits a blue phase includes: a nematic liquid crystal including a compound represented by a structural formula (100) (PPEP-5FCNF (abbreviation)); and a chiral agent. In a liquid crystal display device, a liquid crystal layer is formed using the liquid crystal composition including a nematic liquid crystal including a compound represented by a structural formula (100) (PPEP-5FCNF (abbreviation)) and a chiral agent, and the liquid crystal composition exhibits a blue phase. | 11-24-2011 |
20120025697 | Triazole Derivative, Heterocyclic Compound, Light-Emitting Element, Light-Emitting Device, Electronic Device and Lighting Device - A substance that facilitates hole injection and has high triplet excitation energy is provided. A light-emitting element having high emission efficiency is provided. A light-emitting element driven with a low voltage is provided. Or a light-emitting element having a long lifetime is provided. Provided is a light-emitting element including a triazolo[4,3-f]phenanthridine derivative or a triazolo[3,4-a]isoquinoline derivative. Provided is a triazolo[4,3-f]phenanthridine and triazolo[3,4-a]isoquinoline derivatives, which are novel and can be used for the light-emitting element. | 02-02-2012 |
20120077987 | ORGANIC COMPOUND, LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, ELECTRONIC DEVICE, AND LIGHTING DEVICE - A novel substance with which an increase in life and emission efficiency of a light-emitting element can be achieved is provided. A carbazole compound having a structure represented by General Formula (G1) is provided. Note that a substituent which makes the HOMO level and the LUMO level of a compound in which a bond of the substituent is substituted with hydrogen deep and shallow, respectively is used as each of substituents in General Formula (G1) (R | 03-29-2012 |
20120104369 | Phenanthrene Compound, Light-Emitting Element, Light-Emitting Device, Electronic Device, and Lighting Device - A novel compound having high triplet excitation energy and a bipolar property is provided. Specifically, a phenanthrene compound represented by General Formula (G1) is provided where R | 05-03-2012 |
20120130081 | Oxadiazole Derivative, and Light-Emitting Element, Light-Emitting Device, Electronic Device, and Lighting Device Using the Oxadiazole Derivative - An object of one embodiment of the present invention is to provide a novel oxadiazole derivative as a substance having high excitation energy, in particular, a substance having high triplet excitation energy. One embodiment of the present invention is an oxadiazole derivative represented by General Formula (G1) below. | 05-24-2012 |
20120132855 | LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE - To provide a liquid crystal composition exhibiting a blue phase, which enables higher contrast, and a liquid crystal display device including the liquid crystal composition. The liquid crystal composition contains a chiral agent and liquid crystal containing a compound having three electron-withdrawing groups as end groups of a structure where a plurality of rings including at least one aromatic ring is linked to each other directly or with a linking group laid therebetween. The peak of the diffracted wavelength on the longest wavelength side in the reflectance spectrum of the liquid crystal composition is less than or equal to 450 nm, preferably less than or equal to 420 nm. Further, a liquid crystal display device can be provided using the liquid crystal composition. | 05-31-2012 |
20120132896 | Benzoxazole Derivative, Light-Emitting Element, Light-Emitting Device, Electronic Device, and Lighting Device - A novel benzoxazole derivative having high excitation energy, particularly high triplet excitation energy is provided. A light-emitting element having high current efficiency is provided by application of the novel benzoxazole derivative for the light-emitting element. A light-emitting device, an electronic device, and a lighting device each having reduced power consumption are provided. The benzoxazole derivative is represented by General Formula (G1). In the formula, R | 05-31-2012 |
20120194775 | LIQUID CRYSTALLINE COMPOUND, LIQUID CRYSTAL COMPOSITION, LIQUID CRYSTAL ELEMENT, AND LIQUID CRYSTAL DISPLAY DEVICE - A novel liquid crystalline compound and/or a liquid crystal composition including the novel liquid crystalline compound that can be used for a variety of liquid crystal devices capable of exhibiting a blue phase with a wide temperature range are/is provided. A liquid crystalline compound represented by the general formula (G1) is provided. In the general formula (G1), n is an integer of 2 to 10 | 08-02-2012 |
20130009094 | LIQUID CRYSTAL COMPOSITION, LIQUID CRYSTAL ELEMENT, AND LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal composition including a dioxolane compound represented by the general formula (G1) as a chiral agent is provided. In the general formula (G1), R | 01-10-2013 |
20130126782 | LIQUID CRYSTAL COMPOSITION AND LIQUID CRYSTAL DISPLAY DEVICE - A liquid crystal composition exhibiting a blue phase, which enables higher contrast, and a liquid crystal display device including the liquid crystal composition. The liquid crystal composition contains a chiral agent and liquid crystal containing a compound having three electron-withdrawing groups as end groups of a structure where a plurality of rings including at least one aromatic ring is linked to each other directly or with a linking group laid therebetween. At least one of the three electron-withdrawing groups includes a trifluoromethyl group. The peak of the diffracted wavelength on the longest wavelength side in the reflectance spectrum of the liquid crystal composition is less than or equal to 450 nm, preferably less than or equal to 420 nm. Furthermore, a liquid crystal display device can be provided with the use of the liquid crystal composition. | 05-23-2013 |
20130134352 | LIQUID CRYSTAL COMPOSITION, LIQUID CRYSTAL ELEMENT, AND LIQUID CRYSTAL DISPLAY DEVICE - Provided is a novel liquid crystal composition that can be used for a variety of liquid crystal devices. The novel liquid crystal composition exhibits a blue phase and includes a binaphthyl compound represented by a general formula (G1) as a chiral agent. In the general formula (G1), Ar | 05-30-2013 |
20130134353 | DIOXOLANE COMPOUND, LIQUID CRYSTAL COMPOSITION, LIQUID CRYSTAL ELEMENT, AND LIQUID CRYSTAL DISPLAY DEVICE - A novel dioxolane compound represented by the general formula (G1) is provided. In the general formula (G1), R | 05-30-2013 |
20130256594 | BINAPHTHYL COMPOUND, LIQUID CRYSTAL COMPOSITION, LIQUID CRYSTAL ELEMENT, AND LIQUID CRYSTAL DISPLAY DEVICE - A binaphthyl compound represented by General Formula (G1) is provided. In General Formula (G1), Ar | 10-03-2013 |
20140034924 | Heterocyclic Compound and Light-Emitting Device, Display Device, Lighting Device, and Electronic Device Using the Same - Provided is a compound having an indolo[3,2,1-jk]carbazole skeleton and a heterocyclic skeleton which are bonded to each other through an arylene group. The heterocyclic skeleton contains an imidazole skeleton, a pyrazine skeleton, a pyrimidine skeleton, a triazole skeleton, or a condensed heteroaromatic ring including any of these heterocycles. The high carrier-transport property and the large band gap of the compound allows the used as a host material of a phosphorescent dopant, leading to the formation of a green to blue emissive phosphorescent light-emitting element having high emission efficiency, low driving voltage, and reduced power consumption. | 02-06-2014 |
20140046073 | Oxadiazole Derivative, and Light-Emitting Element, Light-Emitting Device, Electronic Device, and Lighting Device Using the Oxadiazole Derivative - An object of one embodiment of the present invention is to provide a novel oxadiazole derivative as a substance having high excitation energy, in particular, a substance having high triplet excitation energy. One embodiment of the present invention is an oxadiazole derivative represented by General Formula (G1) below. | 02-13-2014 |
20140066633 | ORGANIC COMPOUND, LIGHT-EMITTING ELEMENT, LIGHT-EMITTING DEVICE, ELECTRONIC DEVICE, AND LIGHTING DEVICE - A novel substance with which an increase in life and emission efficiency of a light-emitting element can be achieved is provided. A carbazole compound having a structure represented by General Formula (G1) is provided. Note that a substituent which makes the HOMO level and the LUMO level of a compound in which a bond of the substituent is substituted with hydrogen deep and shallow, respectively is used as each of substituents in General Formula (G1) (R | 03-06-2014 |
20140330017 | Heterocyclic Compound, Light-Emitting Element, Display Module, Lighting Module, Light-Emitting Device, Display Device, Lighting Device, and Electronic Device - Provided is a heterocyclic compound that can be used for a carrier-transport material, a host material, or a light-emitting material in a light-emitting element. The heterocyclic compound has an indolo[3,2,1-jk]carbazole skeleton and a dibenzo[f,h]quinoxaline skeleton which are linked to each other through an arylene group. The wide band gap of the heterocyclic compound allows excitation of a green-emissive phosphorescent material, which contributes to the formation of a highly efficient light-emitting element. | 11-06-2014 |
20150021577 | Organic Compound, Light-Emitting Element, Display Module, Lighting Module, Light-Emitting Device, Display Device, Lighting Device, and Electronic Device - A novel organic compound that can be used as a carrier-transport material, a host material, or a light-emitting material in a light-emitting element is provided. Specifically, an organic compound that can give a light-emitting element having favorable characteristics even when the organic compound is used in a light-emitting element emitting phosphorescence is provided. The organic compound has a bipyridine skeleton formed by two pyridine skeletons to each of which a dibenzothiophenyl group or a dibenzofuranyl group is bonded via an arylene group. | 01-22-2015 |
20150034868 | ISOSORBIDE DERIVATIVE, LIQUID CRYSTAL COMPOSITION, LIQUID CRYSTAL ELEMENT, AND LIQUID CRYSTAL DISPLAY DEVICE - To provide a novel material for a liquid crystal composition that can be used for various liquid crystal display devices. A novel isosorbide derivative represented by General Formula (G2) is provided. In General Formula (G2), Ar | 02-05-2015 |
20150034874 | TRIFLUOROPHENYL DERIVATIVE, LIQUID CRYSTAL COMPOSITION, AND LIQUID CRYSTAL DISPLAY DEVICE - Provided is a novel material included in a liquid crystal composition that can be used in various liquid crystal display devices. A trifluorophenyl derivative represented by General Formula (G1). In General Formula (G1), Ar | 02-05-2015 |
20150076402 | Dioxlane Derivative, Liquid Crystal Composition, Liquid Crystal Element, and Liquid Crystal Display Device - A dioxolane derivative represented by formula (G1) is provided. The explanation of the substituents is given in the specification. The use of the dioxolane derivative enables the production of a liquid crystal composition and a liquid crystal display device including the liquid crystal composition. | 03-19-2015 |