Abstract: An organic EL multi-color emitting device including a substrate, and a first light-emitting element and a second light-emitting element arranged on the surface of the substrate; the first light-emitting element including, between an anode and a cathode, a first organic layer, a second organic layer and a third organic layer in this sequence in a direction perpendicular to the surface of the substrate; the second light-emitting element including, between an anode and a cathode, a second organic layer and a third organic layer in this sequence in a direction perpendicular to the surface of the substrate; the first organic layer including a first light-emitting dopant; the third organic layer including a second light-emitting dopant; the second organic layer including any of (A) a compound including an arylamine site, and a furan site or a thiophene site, (B) a compound including an arylamine site and a site comprising a nitrogen-containing six-membered ring structure, (C) a compound including a carbazole site,

Abstract: Provided is a light-emitting element in the structure and configuration of causing no possibility of a short circuit between first and second electrodes even if there is any foreign substance or a protrusion on the first electrode. Such a light-emitting element is configured to include, in order, a first electrode 21, an organic layer 23 including a light-emitting layer made of an organic light-emitting material, a semi-transmissive/reflective film 40, a resistance layer 50, and a second electrode 22. The first electrode 21 reflects a light coming from the light-emitting layer, and the second electrode 22 passes through a light coming from the semi-transmissive/reflective film 40 after passing therethrough. The semi-transmissive/reflective film on the organic layer 23 has an average film thickness of 1 nm to 6 nm both inclusive.

Abstract: The present invention provides a novel aromatic amine derivative having a specific structure and an organic electroluminescence device in which an organic thin film layer comprising a single layer or plural layers including at least a light emitting layer is interposed between a cathode and an anode, wherein at least one layer in the above organic thin film layer, particularly a hole injecting layer contains the aromatic amine derivative described above in the form of a single component or a mixed component. Use of the aromatic amine derivative described above materialize an organic electroluminescence device which reduces an operating voltage and makes molecules less liable to be crystallized and which enhances a yield in producing the organic EL device and has a long lifetime.

Abstract: Provided is a light-emitting element in the structure and configuration of causing no possibility of a short circuit between first and second electrodes even if there is any foreign substance or a protrusion on the first electrode. Such a light-emitting element is configured to include, in order, a first electrode 21, an organic layer 23 including a light-emitting layer made of an organic light-emitting material, a semi-transmissive/reflective film 40, a resistance layer 50, and a second electrode 22. The first electrode 21 reflects a light coming from the light-emitting layer, and the second electrode 22 passes through a light coming from the semi-transmissive/reflective film 40 after passing therethrough. The semi-transmissive/reflective film on the organic layer 23 has an average film thickness of 1 nm to 6 nm both inclusive.

Abstract: An organic electroluminescence display unit including: a lower electrode for each device; a first hole injection/transport layer provided on the lower electrode for each device; a second organic light emitting layer of the first color provided on the first hole injection/transport layer for the second organic electroluminescence device; a second hole injection/transport layer provided on the entire surfaces of the second organic light emitting layer and the first hole injection/transport layer for the first organic electroluminescence device, and being made of a low molecular material; a blue first organic light emitting layer provided on the entire surface of the second hole injection/transport layer; and an electron injection/transport layer having at least one of electron injection characteristics and electron transport characteristics, and an upper electrode that are provided in sequence on the entire surface of first organic light emitting layer.

Abstract: An organic electroluminescence display unit including: a lower electrode for each device; a first hole injection/transport layer provided on the lower electrode for each device; a second organic light emitting layer of the first color provided on the first hole injection/transport layer for the second organic electroluminescence device; a second hole injection/transport layer provided on the entire surfaces of the second organic light emitting layer and the first hole injection/transport layer for the first organic electroluminescence device, and being made of a low molecular material; a blue first organic light emitting layer provided on the entire surface of the second hole injection/transport layer; and an electron injection/transport layer having at least one of electron injection characteristics and electron transport characteristics, and an upper electrode that are provided in sequence on the entire surface of first organic light emitting layer.

Abstract: Disclosed herein is an organic EL display device, including: a lower electrode provided every first organic EL element for a blue color and every second organic EL element for another color on a substrate; a hole injection/transport layer provided every first and second organic EL elements; a second organic light emitting layer for another color provided on said hole injection/transport layer for said second organic EL element; a connection layer made of a low-molecular material and provided over an entire surface of said hole injection/transport layer for said second organic light emitting layer and said first organic EL element; a first organic light emitting layer for a blue color provided over an entire surface of said connection layer; and an electron injection/transport layer and an upper electrode provided over an entire surface of said organic light emitting layer in order.

Abstract: An organic electroluminescent device, includes: an anode and a cathode of inorganic conducting material; an organic emission functional layer interposed between the anode and the cathode, and that includes an organic emissive layer; and an organic electrode film provided in contact with an outer side of at least one of the anode and the cathode, wherein the organic electrode film is formed using at least one of (I) a combination of a polycyclic aromatic hydrocarbon compound having a backbone of 3- to 7-membered rings, and a benzoimidazole derivative having a substituent in the benzene ring, and (II) an azatriphenylene derivative.

Abstract: A red light emitting organic electroluminescence device (11) has a structure in which an organic layer (14) including a light emitting layer (14c) is sandwiched between an anode (13) and a cathode (15). In the organic electroluminescence device (11), the light emitting layer (14c) contains, as a host material, a polycyclic aromatic hydrocarbon compound of which a parent skeleton is 4 to 7 rings, together with a red light emitting guest material. In addition, a photosensitizing layer (14d) containing a phosphorescent material having an organic material is provided adjacently to the light emitting layer (14c). Consequently, there are provided a red light organic electroluminescence device being sufficiently good in luminous efficiency and color purity and a display apparatus using the same.

Abstract: An organic electroluminescent includes an organic layer with a total thickness of 150 nm or over is included between an anode and a cathode. The organic layer includes a light-emitting layer containing a host material of a polycyclic aromatic hydrocarbon compound with a basic skeleton having three to seven ring members, and hole supply layers arranged between the anode and the light-emitting layer and having a smaller thickness than a thickness of the light-emitting layer.

Abstract: An organic electroluminescence display unit includes: a lower electrode for each device; a first hole injection/transport layer provided on the lower electrode for each device; a second organic light emitting layer of the first color provided on the first hole injection/transport layer for the second organic electroluminescence device; a second hole injection/transport layer provided on the entire surfaces of the second organic light emitting layer and the first hole injection/transport layer for the first organic electroluminescence device, and being made of a low molecular material; a blue first organic light emitting layer provided on the entire surface of the second hole injection/transport layer; and an electron injection/transport layer having at least one of electron injection characteristics and electron transport characteristics, and an upper electrode that are provided in sequence on the entire surface of first organic light emitting layer.

Abstract: A display includes: a first region including first pixels configured of a single color; a second region including second pixels configured of a plurality of colors different from the single color, the second pixels having an organic layer including a common light emitting layer; and a dividing wall separating the first region from the second region.

Abstract: A reverse printing ink composition capable of realizing printing with a uniform film thickness and high-definition patterning, a printing method using the same, and a method of manufacturing a display unit using the same are provided. The reverse printing ink composition includes a solvent containing an aromatic carbon hydride and a straight-chain carbon hydride and a low-molecular material.

Abstract: An organic electroluminescence display device includes: a first electrode provided over a substrate for each of first and second organic electroluminescence elements; a hole injection/transport layer provided over a whole surface of the first electrode, having at least one of hole injection and transportation characteristics; a second organic light emitting layer provided on an area on the hole injection/transport layer except an area opposed to the first organic electroluminescence element; a first organic light emitting layer provided over whole surfaces of the hole injection/transport and second organic light emitting layers; an electron injection/transport layer, provided over a whole surface of the first organic light emitting layer, having at least one of electron injection and transportation characteristics; a second electrode provided on the electron injection/transport layer; and a color filter provided over the second electrode, having a color or colors in an area above the second organic electrolum

Abstract: Disclosed herein is an organic electroluminescence display including a plurality of first electrodes, a hole injection/transport layer, a second organic light emitting layer for another color, a connection layer, a first organic light emitting layer for blue color, an electron injection/transport layer, and an electron injection/transport layer. The first electrodes are provided on a substrate on the basis of each of a first organic electroluminescence element for blue color and a second organic electroluminescence element for another color. The hole injection/transport layer is provided over the whole surface area on the first electrodes and having a property for one of hole injection or transport. The second organic light emitting layer for another color is provided over the whole surface area on the hole injection/transport layer and having a crystal part in a part. The connection layer is provided over the whole surface area on the second organic light emitting layer.

Abstract: Disclosed herein is an organic EL display device, including: a lower electrode provided every first organic EL element for a blue color and every second organic EL element for another color on a substrate; a hole injection/transport layer provided every first and second organic EL elements; a second organic light emitting layer for another color provided on said hole injection/transport layer for said second organic EL element; a connection layer made of a low-molecular material and provided over an entire surface of said hole injection/transport layer for said second organic light emitting layer and said first organic EL element; a first organic light emitting layer for a blue color provided over an entire surface of said connection layer; and an electron injection/transport layer and an upper electrode provided over an entire surface of said organic light emitting layer in order.

Abstract: Disclosed herein is an organic electroluminescence display device including: a substrate; a plurality of lower electrodes formed thereon for each of a plurality of organic electroluminescence elements; a plurality of hole injecting/transporting layers capable of either hole injection or hole transportation which are formed on the lower electrodes for each of the organic electroluminescence elements; a plurality of organic light emitting layers containing a low-molecular weight material which are formed on the hole injecting/transporting layers for each of the organic electroluminescence elements; an electron injecting/transporting layer capable of either electron injection or electron transportation which is formed over the entire surface of the organic light emitting layers; and an upper electrode formed on the electron injecting/transporting layer.

Abstract: An organic EL device includes: an anode, a cathode and an organic thin-film layer interposed between the anode and the cathode, in which the organic thin-film layer includes: an emitting layer containing a host material and a phosphorescent material; and a hole transporting layer provided adjacent to the anode relative to the emitting layer. The hole transporting layer includes a first hole transporting layer and a second hole transporting layer that are sequentially layered on the anode, in which the first hole transporting layer contains an amino compound substituted by an aromatic substituent represented by a formula (1) below and the second hole transporting layer contains at least one of compounds represented by formulae (2) to (5) below.

Abstract: An organic EL display includes: lower electrodes arranged on a substrate to correspond to first organic EL elements of blue and second organic EL elements of any other color, respectively; hole injection/transport layers arranged on the lower electrodes; second organic light-emitting layers of the other color arranged on the hole injection/transport layers for the second organic EL elements; a first organic light-emitting layer of blue arranged on whole surfaces of the second organic light-emitting layers and the hole injection/transport layers for the first organic EL elements; an electron injection/transport layer arranged on a whole surface of the first light-emitting layer, the electron injection/transport layer made of a nitrogen-containing heterocyclic compound with an electron mobility of 1.0×10?6 cm2/Vs to 1.0×10?1 cm2/Vs both inclusive and having one or both of electron injection properties and electron transport properties; and an upper electrode arranged on the electron injection/transport layer.

Abstract: A red light emitting organic electroluminescence device (11) has a structure in which an organic layer (14) including a light emitting layer (14c) is sandwiched between an anode (13) and a cathode (15). In the organic electroluminescence device (11), the light emitting layer (14c) contains, as a host material, a polycyclic aromatic hydrocarbon compound of which a parent skeleton is 4 to 7 rings, together with a red light emitting guest material. In addition, a photosensitizing layer (14d) containing a phosphorescent material having an organic material is provided adjacently to the light emitting layer (14c). Consequently, there are provided a red light organic electroluminescence device being sufficiently good in luminous efficiency and color purity and a display apparatus using the same.