摘要:
An organic electroluminescence device including an oxadiazole or thiadiazole compound interposed between two electrons. The compound is of the formula ##STR1## wherein Z.sup.1 and Z.sup.2 are each an unsubstituted or substituted aromatic group; Y.sup.1 and Y.sup.2 are each an unsubstituted or substituted aromatic group; Q is --O--, --CH.sub.2 --, --CH.sub.2 --CH.sub.2 --; or --C(CH.sub.3).sub.2 ; and X is --O-- or --S--. The organic electroluminescence device has a high brightness, a high luminous efficiency and a long service life.
摘要:
An electroluminescence device (EL device) and method of manufacture thereof in which an emitting material is made of an organic compound represented by general formula (I), (I') or (II): ##STR1## The EL device displays a high brightness by applying only low voltage.
摘要:
An organic electroluminescence device having a high brightness, a high luminescence efficiency and a long service life. The organic electroluminescence device including two opposing electrodes and having disposed therebetween a polycarbonate polymer containing a styrylamine skeleton or a diarylvinylene arylene skeleton as a repeating unit.
摘要:
Disclosed is an optical gain device comprising an active layer having a film thickness of 1 .mu.m or less, 10% or more by weight of fluorescent organic molecules such as stilbene dye, and a quantum yield of fluorescence of 0.1 or more, the device being capable of exciting the active layer and also waveguiding and amplifying the light emitted from the fluorescent organic molecules.The aforesaid, optical gain device is capable of improving the threshold of excitation intensity as well as the optical gain.
摘要:
Organic electroluminescence devices having the life of light emission superior to those of conventional electroluminescence devices, and novel arylenediamine derivatives which can remarkably improve the life of light emission of an organic electroluminescence device when the derivatives are used as a component of the device, are disclosed. The organic electroluminescence devices of the present invention at least contain a p-phenylenediamine derivative having 6 or more benzene ring skeletons, or at least a 4,4'-biphenylenediamine derivative having 5 biphenyl groups. The arylenediamine derivatives of the present invention include p-phenylenediamine derivatives having 4 biphenyl groups and 4,4'-biphenylenediamine derivatives having 5 biphenyl groups.
摘要:
A thin film electroluminescence device and a process for production thereof. This device is characterized in that as a light emitting layer material or charge injection layer material, a polymer film having at least one of a light emitting layer function, a charge transport function and a charge injection function, and having a film thickness of not more than 0.5 .mu.m is prepared by the vacuum evaporation method and used.
摘要:
A thin film electrode comprising an electron-injectable metal and an organic compound. Said thin film electrode has excellent uniformity and may be very thin and has a small volume resistivity. An electroluminescence device using said thin film electrode has high luminous efficiency, making it useful as a light-emitting material.
摘要:
An organic electroluminescence device having a high brightness of 50 cd/m.sup.2 or more and a luminous efficiency of 0.02 lm/W or more, wherein an organic semiconductor zone and an organic insulator zone are sandwiched between electrodes, the organic insulator zone contains an organic light emitting area, and the above organic semiconductor zone comprises electroconducting oligomer. The organic electroluminescence device is capable of emitting light in a plane, shows a stable emission of light, and further can be easily prepared.
摘要:
Disclosed are(1) a thin film electrode for devices comprising an electron-injectable metal and an organic compound and having an excellent uniformity and minuteness,(2) a process for production of a thin film electrode for devices which comprises co-vapor depositing an electron-injectable metal and an organic compound, and(3) a process for production of an electroluminescence device which comprises co-vapor depositing an electron-injectable metal and an organic compound to form a cathode.The thin film electrode of the present invention has a small volume resistivity. An EL device using said thin film electrode has high luminous efficiency and can be expected to be utilized as a light emitting material for various display devices.
摘要:
A thin film electroluminescence device and a process for production thereof. This device is characterized in that as a light emitting layer material or charge injection layer material, a polymer film having at least one of a light emitting layer function, a charge transport function and a charge injection function, and having a film thickness of not: more than 0.5 .mu.m is prepared by the vacuum evaporation method and used.