Abstract:
PROBLEM TO BE SOLVED: To enable enlarging a display device such as an organic EL panel or the like and reducing its cost by making it possible to produce a red organic EL element excellent in luminous efficiency. SOLUTION: In this organic electroluminescent element 1 formed by holding at least a luminescent layer 14 between a first electrode 12 and a second electrode 13, the luminescent layer 14 comprises a deposit formed by using a transfer donor made from ink having a host material using a tetracene derivative, a red dopant, and a solvent. COPYRIGHT: (C)2009,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
Abstract:
PROBLEM TO BE SOLVED: To provide an organic electroluminescence element that has improved luminous efficiency and color purity and emits a red color, and to provide a display using the organic electroluminescence element. SOLUTION: In the organic electroluminescence element 11 that clamps an organic layer 14, having a luminous layer 14c between a positive electrode 13 and a negative electrode 15, and emits a red color, the luminous layer 14c contains a pyran derivative as a red radiative guest material and a polycyclic aromatic series hydrocarbon compound having 4-7 membered rings for a mother skeleton as a host material. A photosensitizing layer 14d containing a radiative guest material generated at a wavelength shorter than that of the luminous layer 14c is provided adjacent to the luminous layer 14c. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide an organic electroluminescence element that has improved luminous efficiency and color purity and emits a red color, and to provide a display using the organic electroluminescence element. SOLUTION: In the organic electroluminescence element 11 that clamps an organic layer 14, having a luminous layer 14c between a positive electrode 13 and a negative electrode 15, and emits a red color, the luminous layer 14c contains a pyrromethene complex as a red radiative guest material, and a polycyclic aromatic series hydrocarbon compound having 4-7 membered rings for a mother skeleton as a host material. A photosensitizing layer 14d containing a radiative guest material generated at a wavelength shorter than that of the luminous layer 14c is provided adjacent to the luminous layer 14c. COPYRIGHT: (C)2008,JPO&INPIT
Abstract:
PROBLEM TO BE SOLVED: To provide an easily-produced display element which can be improved in environmental resistance and charge injection efficiency from the charge-generating layer to light-emitting units by using a stable material for at least a part of a charge-generating layer in the stack display element wherein the light-emitting units respectively comprising an organic layer are stacked. SOLUTION: In a display element 11, a plurality of the light-emitting units 14-1 and 14-2 comprising at least an organic light-emitting layer 14c are arranged between a cathode 16 and an anode 13, and the charge-generating layer 15 is interposed between the light-emitting units 14-1 and 14-2. At least a part of the charge-generating layer 15 is composed of an oxide or fluoride containing at least either of an alkali metal and an alkaline earth metal. COPYRIGHT: (C)2006,JPO&NCIPI
Abstract:
PROBLEM TO BE SOLVED: To provide an organic material that is effective in 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 for, for example, the hole injection material or hole transporting material of 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 capable of effectively suppressing erosion of an organic EL device when a plurality of panels are connected to constitute one display screen. SOLUTION: This display device 1 has a display screen constituted by connecting a plurality of panels 4, 5 formed using organic EL devices 41, 51. A sealing material 12 is applied to joint parts of a plurality of the panels 4, 5 so that the joint parts are covered to suppress infiltration of moisture, air or the like to the organic El devices 41, 51. COPYRIGHT: (C)2004,JPO