摘要:
The present invention relates to: a polymer for an anode buffer layer in an organic light emitting device comprising a self-doping conductive polymer having a pH value of 3 to 7 in a 1% by mass aqueous solution, the polymer containing monomer unit(s) represented by the following formula wherein M+ represents a hydrogen ion, an alkali metal ion, or a quaternary ammonium ion, k represents 1 or 2, +k represents a positive charge number, and a hydrogen atom in the aromatic ring may be replaced by a substituent, an anode buffer layer coating solution comprising the polymer, and an organic light emitting device comprising an anode buffer layer using the polymer. The polymer of the present invention can overcome the problem of deterioration of light emitting layer due to extrinsic dopant.
摘要:
A smooth intermediate film layer having a thickness of 0.2 to 30 nm, little protrusions and a surface layer having high adhesiveness with the light-emitting layer is provided with accuracy on an anode constituting an organic electroluminescent device comprising a light-emitting compound layer present between an anode and a cathode. After the intermediate film layer is formed on the anode surface using a dry processing method by radio frequency plasma treatment or a wet processing method by a spin coating method and the like, preferably it is subjected to optimization treatment (washing) to adjust the smoothness, adhesiveness and thickness of the film. When the wet processing method is used, a surface treatment of the anode is preferably to be performed furthermore before forming the film to control the smoothness and surface conditions. Performing the treatment before and after forming the intermediate layer enables to control the thickness, smoothness and adhesiveness of the film and to obtain an organic electroluminescent device having high emission efficiency and long device life.
摘要:
Disclosed is an organic EL light-emitting device having an organic light-emitting element including a transparent substrate having a transparent electrode (anode), a light-emitting compound layer containing a light-emitting compound and a cathode laminated thereon, and a sealing member for sealing the light-emitting element and shielding external air and an oxygen absorbing member, wherein oxygen is contained at an interface between the light-emitting compound layer and the cathode.
摘要:
Disclosed is an organic electro-luminescence element including an anode layer, an organic electro-luminescence compound layer containing a high molecular weight light-emitting compound, and a cathode layer, laminated in this order, wherein said cathode layer includes: (i) a metal-doped electron injection layer in contact with the organic electro-luminescence compound layer and (ii) a transparent, non-metallic electron-injecting material in contact with the metal-doped electron injection layer; and wherein said metal-doped electron injection layer is selected from the group consisting of a material functioning as a hole-blocking material, a material functioning as an exciton-blocking material and a material functioning as a blocking material for both holes and excitons.
摘要:
The invention relates to a light-emitting material having high emitting efficiency, high luminance and durability for use in an organic light-emitting device and to an organic electroluminescent (EL) device, in which the light-emitting material is used. The light-emitting material contains a light-emitting substance which is spatially constricted and confined in an order of two dimensions or more, thus providing a high efficient organic light-emitting device based on emission of phosphorescence from an excited triplet state.
摘要:
A smooth intermediate film layer having a thickness of 0.2 to 30 nm, little protrusions and a surface layer having high adhesiveness with the light-emitting layer is provided with accuracy on an anode constituting an organic electroluminescent device comprising a light-emitting compound layer present between an anode and a cathode. After the intermediate film layer is formed on the anode surface using a dry processing method by radio frequency plasma treatment or a wet processing method by a spin coating method and the like, preferably it is subjected to optimization treatment (washing) to adjust the smoothness, adhesiveness and thickness of the film. When the wet processing method is used, a surface treatment of the anode is preferably to be performed furthermore before forming the film to control the smoothness and surface conditions. Performing the treatment before and after forming the intermediate layer enables to control the thickness, smoothness and adhesiveness of the film and to obtain an organic electroluminescent device having high emission efficiency and long device life.
摘要:
Disclosed is an organic electroluminescence device comprising one layer or two or more layers of organic layer sandwiched between an anode and a cathode wherein: at least one of the organic layers comprises a phosphorescent compound and a polymer; the polymer comprises a structural unit derived from a monomer represented by the following formula (1) and a structural unit derived from a monomer having heterocycle(s) containing two or more heteroatoms. (I) (In the formula, R1-R27 each represents independently a hydrogen atom, a halogen atom, a cyano group, an amino group an alkyl group having 1 to 10 carbon atoms or an alkoxy group having 1 to 10 carbon atoms; within each of the groups R1-R4, R5-R9, R10-R14 and R15-R19, two groups bonding to adjacent carbon atoms in a benzene ring may bond to each other forming a fused ring; X1 represents a single bond, an oxygen atom (—O—), a sulfur atom (—S—), —SO—, —SO2—, —NR— (R represents a hydrogen atom, an alkyl group having 1 to 4 carbon atoms or a phenyl group), —CO— or a divalent organic group having 1 to 20 carbon atoms (the organic group may be substituted with an atom or a group selected from the group consisting of an oxygen atom (—O—), a sulfur atom (—S—), —SO—, —SO2—, —NR— (R represents a hydrogen atom, an alkyl group having 1 to 4 carbon atoms or a phenyl group) and —CO—); Y1 represents a polymerizable functional group; and p represents 0 or 1.)
摘要:
The invention provides a method of producing an organic electroluminescent device comprising applying a composition containing an organic electroluminescent compound onto multiple electrodes to form an organic electroluminescent layer on each of the electrodes, wherein the substrate on which the composition is applied is a substrate with the portions between electrodes and/or the surface of the electrodes having been subjected to water-repellent treatment. By using this method, deterioration of a device and reduction in performance due to existence of an insulating layer which is indispensable for segregation of each polymer light-emitting compound in conventional process of applying polymer light-emitting compounds can be avoided.
摘要:
A 3D display device, including a plurality of display means located in tandem on the same line of sight of an observer at a given distance; a control means which controls the plurality of display means to display an image obtained from the same object on almost the same screen position in each of the plurality of display means by mutually changing the brightness so that a 3D image may be displayed from the sight of the observer; wherein all the display means or at least one display means except for the display means located at the backmost position from the sight of the observer comprise a device for displaying having an image displaying surface which is self-luminescent and has light transmittance, and the device for displaying comprises an organic EL element provided with an organic EL layer containing a phosphorescent compound.
摘要:
The present invention relates to a phosphorescent polymer compound comprising a phosphorescent monomer unit and a hole transporting monomer unit having a triphenylamine structure represented by the formula (1): (in the formula, the symbols have the same meanings as defined in the Description), and an organic light emitting device using the compound. Use of the phosphorescent polymer compound of the present invention enables production of organic light emitting device with a high light emitting efficiency at a low voltage, which is suitable for increasing the emission area and mass production.