Abstract: The present invention provides a light-emitting device that can independently display images of both front and back sides, in a light emitting device that can display in the both sides and also provides a light-emitting device in which the aperture ratio of both or either of front and back displays increases. A light-emitting device has a structure in which a first light-emitting element and a second light-emitting element that are adjacent to each other are arranged in matrix; wherein the first light-emitting element can emit light to a first side of a substrate and the second light-emitting element can emit light to a second side that is opposite to the first side of the substrate. And light-emission of the first light-emitting element to the second side is shielded and light-emission of the second light-emitting element to the first side is shielded.

Abstract: The present invention provides a novel substance having an excellent color purity of blue, a light-emitting element and a light-emitting device using the novel substance. A stilbene derivative has a structure shown by the general formula (1). In the general formula (1), R1 is hydrogen, an alkyl group having 1 to 4 carbon atoms, or an aryl group having 6 to 25 carbon atoms. R2 is an alkyl group having 1 to 4 carbon atoms or an aryl group having 6 to 25 carbon atoms. Each of R3 to R5 is hydrogen or an alkyl group having 1 to 4 carbon atoms. Ar1 is an aryl group having 6 to 25 carbon atoms.

Abstract: The present invention provides an anthracene derivative represented by the following general formula (1). In the general formula (1), R1 and R2 individually represent hydrogen or an alkyl group having 1 to 4 carbon atoms, and at least one of R1 and R2 is hydrogen. Further, R3 represents an aryl group having 6 to 15 carbon atoms. R4 represents hydrogen, an alkyl group having 1 to 4 carbon atoms, or an aryl group having 6 to 15 carbon atoms. R5 represents hydrogen, an alkyl group having 1 to 4 carbon atoms, or an aryl group having 6 to 15 carbon atoms. R6 represents an aryl group having 6 to 15 carbon atoms. X1 represents an arylene group having 6 to 15 carbon atoms. General formula (1) is inserted.

Abstract: An organic-inorganic hybrid material comprising a metal oxide and a chelating ligand is synthesized. The function of a coloring property, a light-emitting property, or semiconductivity of the organic-inorganic hybrid material can be controlled by chelating ligand. The organic-inorganic hybrid material is prepared by sol-gel method using sol which includes a metal alkoxide and/or a metal salt and a functional chelating agent.

Abstract: The problem of the present invention is to provide a carbazole derivative which has an excellent heat resistance and can be formed into a film without crystallization. Also, a problem is to produce an organic semiconductor element, a light emitting element and an electronic device by employing the carbazole derivative.

Abstract: An object is to provide a carbazole derivative that is useful as a raw material in manufacturing a light emitting element material having resistance to repetition of an oxidation reaction. The carbazole derivative is represented by General Formula (1) in the following. In General Formula (1), R1 represents any one selected from an alkyl group having 1 to 4 carbon atoms such as methyl, ethyl, and tert-butyl, and an aryl group having 1 to 12 carbon atoms such as phenyl, biphenyl, and naphthyl.

Abstract: One object of the present invention is to provide a light emitting element that includes an organic compound and an inorganic compound and has low driving voltage. The light emitting element of the invention includes a plurality of layers between a pair of electrodes, wherein the plurality of layers includes a layer that contains a carbazole derivative represented by a general formula (1) and an inorganic compound exhibiting an electron accepting property with respect to the carbazole derivative. By utilizing this structure, electrons are transported between the carbazole derivative and the inorganic compound and carriers are internally generated, and hence, the driving voltage of the light emitting element can be reduced.

Abstract: It is an object of the present invention to provide a novel material capable of realizing excellent color purity of blue, and a light emitting element and a light emitting device using the novel material. Further, it is an object of the present invention to provide which is highly reliable, and a light emitting element and a light emitting device using the novel material.

Abstract: There is provided an electroluminescent element using a material that is excellent in film forming properties and carrier transporting properties, emits a light in the solid state, and can be suitably used also as a host material. The electroluminescent element has an electroluminescence layer between a couple of electrodes, and a complex of a Group 4 metal of the periodic table, which is excellent in the film forming properties and the carrier transporting properties and capable of emitting a light in the solid state, is used in a part of the electroluminescence layer to form the electroluminescent element. The complex of a Group 4 metal of the periodic table has an emission wavelength on a longer wavelength side as compared with conventional host materials such as Alq3, and thereby may be combined with a red light emitting guest material to form a light emitting layer.

Abstract: The present invention provides a novel substance having an excellent color purity of blue, a light-emitting element and a light-emitting device using the novel substance. A stilbene derivative has a structure shown by the general formula (1). In the general formula (1), R1 is hydrogen, an alkyl group having 1 to 4 carbon atoms, or an aryl group having 6 to 25 carbon atoms. R2 is an alkyl group having 1 to 4 carbon atoms or an aryl group having 6 to 25 carbon atoms. Each of R3 to R5 is hydrogen or an alkyl group having 1 to 4 carbon atoms. Ar1 is an aryl group having 6 to 25 carbon atoms.

Abstract: An object is to provide an aromatic amine compound with excellent heat resistance. Another object is to provide a light emitting element, a light emitting device, and an electronic device with excellent heat resistance. An aromatic amine compound represented by General Formula (1) is provided. The aromatic amine compound represented by General Formula (1) has a high glass transition point and excellent heat resistance. By using the aromatic amine compound represented by General Formula (1) for a light emitting element, a light emitting device, and an electronic device, a light emitting element, a light emitting device, and an electronic device with excellent heat resistance can be obtained.

Abstract: It is an object of the present invention to provide a material which is excellent in a hole injecting property and a hole transporting property, and to provide a light emitting element and a light emitting device using a material which is excellent in a hole injecting property and a hole transporting property. The present invention provides a carbazol derivative represented by a general formula (1). The carbazol derivative according to the present invention is excellent in the hole injecting property. By using the carbazol derivative according to the present invention as a hole injecting material for a hole injecting layer of a light emitting element, a driving voltage can be reduced. In addition, a lower driving voltage, improvement of the luminous efficiency, a longer life time, and higher reliability can be realized by applying the material to a light emitting element or a light emitting device.

Abstract: An object is to provide an aromatic amine compound with excellent heat resistance. Another object is to provide a light emitting element, a light emitting device, and an electronic device with excellent heat resistance. An aromatic amine compound represented by General Formula (1) is provided. The aromatic amine compound represented by General Formula (1) has a high glass transition point and excellent heat resistance. By using the aromatic amine compound represented by General Formula (1) for a light emitting element, a light emitting device, and an electronic device, a light emitting element, a light emitting device, and an electronic device with excellent heat resistance can be obtained.

Abstract: The present invention provides a material having excellent hole injecting and hole transporting properties. Moreover, the present invention provides a light-emitting element and a light-emitting device using the material having excellent hole injecting and hole transporting properties. The present invention provides a carbazole derivative represented by the general formula (1). By applying the carbazole derivative of the present invention to a light-emitting element or a light-emitting device, a lower driving voltage, enhanced emission efficiency, a longer lifetime and enhanced reliability of the light-emitting element or the light-emitting device can be realized.

Abstract: It is an object of the present invention to provide a light-emitting substance which is resistant to repetition of an oxidation reaction. It is another object of the invention to provide a light-emitting element which is resistant to repetition of a reduction reaction. An aspect of the present invention is an anthracene derivative represented by a general formula (1). In the general formula (1), R1 represents hydrogen or an alkyl group having 1 to 4 carbon atoms; R2 represents any one of hydrogen, an alkyl group having 1 to 4 carbon atoms, and an aryl group having 6 to 12 carbon atoms, which may have a substituent or no substituent; Ph1 represents a phenyl group, which may have a substituent or no substituent; and X1 represents an arylene group having 6 to 15 carbon atoms.

Abstract: An organic light-emitting device is manufactured, which is formed laminating an electroluminescent layer (111) including an electroluminescent organic compound and a cathode (109) sequentially on anode (101). The electroluminescent layer (111) has a hole blocking layer (106), and this hole blocking layer (106) is formed of two or more kinds of materials. It is possible to manufacture a high-efficiency and high-reliability organic light-emitting device by introducing the hole blocking layer like this.

Abstract: An object is to provide a novel anthracene derivative. Another object is to provide a light-emitting element with high luminous efficiency. Yet another object is to provide a light-emitting element with a long lifetime. Still another object is to provide a light-emitting device and an electronic device having a long lifetime by using the light-emitting elements of the present invention. The anthracene derivative represented by General Formula (1) is provided. The ability of the anthracene derivative represented by General Formula (1) to exhibit high luminous efficiency allows the production of a light-emitting element with high luminous efficiency and a long lifetime.

Abstract: It is an object of the present invention to provide a light emitting element, which is resistant to repetition of an oxidation reaction. It is another object of the invention to provide a light emitting element, which is resistant to repetition of a reduction reaction. An anthracene derivative is represented by a general formula (1). In the general formula (1), R1 represents hydrogen or an alkyl group having 1 to 4 carbon atoms, R2 represents any one of hydrogen, an alkyl group having 1 to 4 carbon atoms and an aryl group having 6 to 12 carbon atoms, R3 represents any one of hydrogen, an alkyl group having 1 to 4 carbon atoms, and an aryl group having 6 to 12 carbon atoms, Ph1 represents a phenyl group, and X1 represents an arylene group having 6 to 15 carbon atoms.

Abstract: It is an object of the present invention to provide a composite material that can be used for manufacturing a heat-resistant light-emitting element, provide a composite material that can be used for manufacturing a heat-resistant light-emitting element that can be driven with stability for a long period of time, and further, provide a composite material that can be used for manufacturing a light-emitting element that easily prevents short circuit between electrodes and uses less power. The present invention provides a composite material that has a first metal oxide skeleton including a first metal atom and an organic compound that is bound to the first metal atom by forming a chelate, where the first metal oxide exhibits an electron accepting property to the organic compound.

Abstract: One embodiment of the present invention provides a method for synthesis of substituted secondary amine by the reaction of aniline with aryl halide by using a Pd catalyst including (t-Bu)3P as a ligand.