摘要:
Disclosed herein are phosphorescent materials comprising a complex of a metal atom M selected from Ir, Pt, Rh, Pd, Ru and Os and at least one ligand L, wherein the ligand L is represented by formula (1). Also disclosed are organic electroluminescent devices including such phosphorescent materials.
摘要:
The present invention provides a very durable charge injection type light emitting device. In a charge injection type light emitting device comprising a positive electrode, a negative electrode, and an organic film sandwiched between the positive and negative electrodes and composed of one or more organic compounds, the organic film containing at least one light emitting layer, a potential barrier to electrons between the light emitting layer and a barrier layer defined as a member that contacts with the light emitting layer from the positive electrode side is 0.5 eV or more.
摘要:
An exposure unit includes a luminescent device array including a pair of electrodes and an organic compound layer disposed between the electrodes, and a microlens array arranged corresponding to the luminescent device array. The exposure unit is used in an image forming apparatus using an electrophotographic system.
摘要:
Organic semiconductors consisting of conjugated chromophores wherein one or more hydrogen atoms are deuterated are disclosed. Methods of preparing such organic semiconductors are described. The organic semiconducting compounds exhibit remarkably high luminescence and good thermal stability. Applications of these materials for optoelectronic devices, such as light-emitting devices and photodiodes, with enhanced performance and lifetime are disclosed. The disclosed materials can be used as emissive layer, charge-transporting layer, or energy transfer (i.e. phosphorescence dopant) material in organic light-emitting devices.
摘要:
A light emitting device is composed of a pair of electrodes and an organic compound layer interposed between the electrodes. In the organic compound layer is used a organic compound shown by the following formula (1): ##STR1## wherein R.sup.1 is a hydrogen atom, an alkyl group or a halogen atom, R.sup.2 is X--Ar.sup.1 ; X is NH, O or S, Ar.sup.1 is a substituted or unsubstituted aromatic ring having a partial structure shown by the following formula (2): ##STR2## or a substituted or unsubstituted heterocyclic ring; each of R.sup.3 and R.sup.4 is a hydrogen atom, an alkyl group, a substituted or unsubstituted aromatic ring, or a substituted or unsubstituted heterocyclic ring; each of R.sup.5 and R.sup.6 is a hydrogen atom, a halogen atom, an alkyl group, an aralkyl group, an alkoxy group, a substituted or unsubstituted aromatic ring, or a substituted or unsubstituted heterocyclic ring.
摘要:
The invention provides a light emitting device with a simple device structure capable of emitting light of various colors. The light emitting device can be produced by simple processing steps: A mold is pressed convex-and-concave against a glass substrate thereby forming a corresponding convex-and-concave structure on the glass substrate; a dielectric layer and a positive electrode layer are successively formed on the glass substrate, thereby forming a positive electrode substrate; a negative electrode substrate provided with a negative electrode layer formed thereon, is prepared; an active layer material is coated on the negative electrode substrate; and the positive and negative electrode substrates are bonded to each other via a spacer.
摘要:
A dry process silver salt photosensitive material is disclosed which has a support and a photosensitive layer. The photosensitive layer contains at least a photosensitive silver halide or photosensitive silver halide forming component, an organic silver salt and a pyrrole compound. The photosensitive material has a broad latitude for heat development and can form images with a high contrast.
摘要:
Disclosed herein are phosphorescent materials comprising a complex of a metal atom M selected from Ir, Pt, Rh, Pd, Ru and Os and at least one ligand L, wherein the ligand L is represented by formula (1). Also disclosed are organic electroluminescent devices including such phosphorescent materials.
摘要:
An electroluminescence device having an emission layer comprising a single organic compound layer between a cathode and an anode. The single layer may comprise an emitter component on a single polymer chain of covalently linked (co)-polymer sections Y1, optionally in combination with Y2, and/or Y3, or different polymer chains Y1, optionally in combination with Y2, and/or Y3 blended together. Each of the (co)-polymer contains a spacer unit and a carrier transporting component and optionally an emitter moiety.
摘要:
A damper structure for a gear device, which includes a first gear mounted to turn with respect to a shaft in a circumferential direction, a second gear mounted on the shaft to rotate integrally, a stopper rubber mounted on the second gear to face the first gear, and a pressing protrusion at the first gear to face the second gear. The stopper rubber is configured to be elastically deformed by pressing the pressing protrusion in a circumferential direction of the second gear during rotation of the first gear and be restored to the initial shape by separating the pressing protrusion during stop of the first gear. A recess for accumulating lubricating oil in the first gear is formed to face the stopper rubber.