Abstract:
PROBLEM TO BE SOLVED: To provide an organic electro-luminescence element which is operated on a low voltage through a process of improving electric charge mobility between a cathode and an anode by the configuration of the element. SOLUTION: A laminated film equipped with an organic light emitting layer is provided with a mixed layer formed of organic material represented by the formula (1). Metal material. R 1 to R 6 are substituent groups independently selected from hydrogen, halogen, a hydroxyl group, an amino group, an aryl amino group, a carbonyl group, a carbonyl ester group, an alkyl group, an alkenyl group, an alkoxyl group, an aryl group, a heterocyclic group, a nitrile group, a nitro group, a cyano group or a cyril group. and X 1 to X 6 are independently carbon or nitrogen atom. COPYRIGHT: (C)2007,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide an organic material that is effective for increasing a lifetime, can also increase efficiency, is required for an element configuration, and has high carrier mobility. SOLUTION: The organic material for display elements is represented by a general formula 1. The organic material is used for the display element clamping a light-emitting unit containing at least an organic light-emitting layer between a cathode and an anode, and is used in, for example, the light-emitting unit. In a stacked display element in which a plurality of light-emitting units are laminated, the organic material is used for the charge generation layer between the light-emitting units. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide a display device having a simpler structure while securing a favorable display performance. SOLUTION: The display device includes a lamination structure in which an organic light emitting element group 20 which has respectively a plurality of organic light emitting elements 20C to emit cyano light C and a plurality of light emitting elements 20M to emit magenta light M, and a color filter group 25 which has respectively a plurality of blue filters 25B to transmit blue light and a plurality of yellow filters 25Y to transmit yellow light are laminated in order on a substrate 11. In this display device, the cyano light C and the magenta light M that enter from the organic light emitting element group 20 into the color filter group 25 are all converted into blue light B by the blue filters 25B, and converted into green light G or red light R by the yellow filters Y. Thereby, compared with a case in which the organic light emitting element group 20 emits white light, color separation becomes easy. COPYRIGHT: (C)2011,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide an organic EL element continuously keeping high luminous efficiency over a long time even in a high-temperature condition. SOLUTION: In this organic electroluminescent element including a pair of an anode and a cathode, and an organic luminescent function layer sandwiched between the anode and the cathode, the organic luminescent function layer is formed as a multilayered structure of an organic material; and at least either of a tribiphenylamine derivative having an aryl group up to a tricyclic one that may have a substituent and a tris(para-naphthyl)triphenylamine derivative having an aryl group up to a tricyclic one is included in the multilayered structure, preferably in a hole transport layer. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a red light-emitting organic electroluminescent device having high luminous efficiency, high color purity, and a long light emission life; and to provide a display apparatus configured by using the same. SOLUTION: The red light-emitting organic electroluminescent device 11 is configured by holding an organic layer 14, which in turn includes a light-emitting layer 14c between a positive electrode 13 and a negative electrode 15, wherein the light-emitting layer 14c includes: a red light-emitting guest material; and a host material composed of a polycyclic aromatic hydrocarbon compound whose mother skeleton has a four- to seven-membered ring. An electron transport layer 14d containing a particular benzimidazole derivative is provided adjacent to the light-emitting layer 14c. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide an organic field electroluminescence element causing no color mixture while having a sufficiently good color purity and a substantially improved emission lifetime, and to provide a display using the organic filed electroluminescence element. SOLUTION: The organic field electroluminescence element sandwiches a naphthacene compound layer 14d including a luminescent layer 14c and a naphthacene compound, and an organic layer 14 comprising an electron transport layer 14e between an anode and a cathode. The luminescent layer 14c includes an aromatic hydrocarbon compound having a mother bone structure of a luminescent guest material and an anthracene, the naphthacene compound layer 14d includes not less than 80 wt.% of naphthacene compound expressed by the formula (1), has a film thickness of 0.5 to 10 nm, and is provided so as to contact with the surface of the luminescent layer 14c side of the electron transport layer 14e. The R 1 to R 8 in the formula (1) respectively and independently expresses: hydrogen atom, halogen atom, hydroxyl group, cyano group, nitro group; carbonyl group, carbonyl ester group, alkyl group, alkenyl group or alkoxyl group which is substituted by a group of not more than carbon number 20; silyl group, aryl group or heterocyclic group which is substituted by a group of not more than carbon number 30. COPYRIGHT: (C)2010,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a transcription substrate to be used in manufacturing an organic electroluminescent element capable of maintaining high luminous efficiency and extended luminance-half-life period, and to provide a method for an organic electroluminescent element using such a transcription substrate. SOLUTION: A transcription substrate 1 includes a light-transmitting support substrate 11, a photothermal conversion layer 13 formed on the support substrate 11, and a transcription layer 17 formed on the photothermal conversion layer 13, wherein the transcription layer 17 is a layer to be transcribed as a luminous layer of an organic electroluminescent element and consists of a metal complex, fluorescence emission dopants, and aromatic hydrocarbons with a mother framework having four to seven rings. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide an organic electroluminescence element which uses an amine compound, and to provide a display unit using the organic electroluminescence element. SOLUTION: The organic electroluminescence element 11 pinches at least one organic layer 14 including a light emitting layer 14c between an anode 13 and a cathode 15. In this case, the organic layer 14 is composed of an amine compound containing mainly triphenylamine, wherein a thiophene unit with high charge mobility is bonded to an terminal phenyl portion as presented by general formula (1) for example. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide an organic electroluminescent element with a high efficiency and a long lifetime. SOLUTION: An organic layer is constituted by using at least one organic material represented by general formula (1) or general formula (2). However, in the general formula (1) and the general formula (2), A, B, R 1 and R 2 are each independently hydrogen or a substituent. COPYRIGHT: (C)2009,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide a manufacturing method for an organic electric field light emitting element with a good characteristic of suppression of deterioration in driving voltage and variation in voltage-current characteristic. SOLUTION: After forming the organic electric field light emitting element (S1) composed by holding a light emitting layer made of organic material between a positive electrode and a negative electrode, a process is carried out to lower the driving voltage of the organic electric field light emitting element (S2) by applying voltage which is higher than the driving voltage in the organic electric field light emitting element between the positive electrode and the negative electrode. COPYRIGHT: (C)2008,JPO&INPIT