摘要:
An electroluminescence device having a layer containing a specific metal coordination compound is provided. The metal coordination compound is represented by formula (1) below:
ML m L' n (1),
wherein M is a metal atom of Ir, Pt, Rh or Pd; L and L' are mutually different bidentate ligands; m is 1, 2 or 3 and n is 0, 1 or 2 with the proviso that m+n is 2 or 3; a partial structure MLm is represented by formula (2) shown below and a partial structure ML' n is represented by formula (3) or (4) shown below: The metal coordination compound of the formula (1) is characterized by having at least one aromatic substituent for at least one of CyN1, CyN2, CyC1 and CyC2. The metal coordination compound having the aromatic substituent is effective in providing high-efficiency luminescence, long-term high luminance, and less deterioration by current passing.
摘要:
An organic EL device includes a luminescence layer containing, as a luminescent material allowing a high-luminescence and high-efficiency luminescence for a long period of time, a metal coordination compound represented by the following formula (1): LmML'n, wherein M denotes Ir, Pt, Ph or Pd; L denotes a bidentate ligand; L' denotes a bidentate ligand different from L; m is an integer of 1, 2 or 3; and n is an integer of 0, 1 or 2 with the proviso that the sum of m and n is 2 or 3. The partial structure MLm is represented by a formula (2) or a formula (3) shown below, and the partial structure ML'n is represented by a formula (4) or a formula (5) shown below:
wherein CyN1, CyN2 and CyN3 independently denote a substituted or unsubstituted cyclic group containing a nitrogen atom connected to M; CyN4 denotes a cyclic group containing 8-quinoline or its derivative having a nitrogen atom connected to M; CyC1, CyC2 and CyC3 independently denote a substituted or unsubstituted cyclic group containing a carbon atom connected to M, with the proviso that the metal coordination compound is represented by the formula (2) when n is 0.
摘要:
A conductive organic compound device structure suitable for constituting an electronic device, such as an organic EL device, is formed by including a pair of oppositely spaced electrodes, and a carrier transporting layer disposed between the electrodes and in contact with one of the electrodes; wherein the carrier transporting layer comprises a conductive organic compound having a π-electron resonance structure in its molecule. In the device, the π-electron resonance structure plane of the conductive organic compound in the carrier transporting layer is aligned substantially parallel to surfaces of the electrodes. The conductive organic compound is preferably a conductive liquid crystal, such as a discotic liquid crystal or a smectic liquid crystal, and a layer thereof is included in the device, preferably by vacuum deposition.
摘要:
A luminescence device is principally constituted by a pair of electrodes and an organic compound layer disposed therebetween. The organic compound layer contains a metal coordination compound characterized by having a partial structure represented by the following formula (1): wherein each of N and C represents an atom constituting a cyclic group.
摘要:
A liquid crystal device is constituted by a pair of electrode plates and a liquid crystal composition disposed between the electrode plates. The first electrode plate comprises a light-transmissive substrate, a plurality of electrodes including principal electrodes and auxiliary electrodes supported on the light-transmissive substrate, and an insulating layer. Each auxiliary electrode is disposed between an associated principal electrode and the light-transmissive substrate so as to be electrically connected with the associated principal electrode, and the auxiliary electrodes being disposed with spacings therebetween which are filled with the insulating layer. The second electrode plate comprises a light-transmissive substrate (1), color filters (21R,21G,21B) disposed on the light-transmissive substrate, a flattening layer (22) disposed on the color filters, and a plurality of electrodes including principal electrodes (5) and auxiliary electrodes (3) disposed on the flattening layer; each auxiliary electrode being disposed between an associated principal electrode and the flattening layer so as to be electrically connected with the associated principal electrode, and each principal electrode contacting the flattening layer at a spacing between an associated auxiliary electrode and an adjacent auxiliary electrode.
摘要:
A liquid crystal display apparatus which has a display section in which a group of scan electrodes and a group of signal electrodes are arranged in a matrix shape and a ferroelectric liquid crystal having a bistability in the direction of an electric field is filled between both of said electrode groups and displays an image or information, comprising: means for sequentially writing gradation information from a pixel having a high threshold value on a scan line by a pulse to completely reset all of pixels on a selected scan electrode into a first stable state and one or a plurality of pulses subsequent to said reset pulse.