摘要:
An anthracene derivative represented by the following general formula (1) which enables an organic electroluminescence device to exhibit a great efficiency of light emission and uniform light emission even at high temperatures since crystallization is suppressed and no thermal decomposition takes place during vapor deposition and an organic electroluminescence device utilizing the derivative, are provided. [Ar represents a group represented by the following general formula (2): (L1 and L2 each represent a substituted or unsubstituted methylene group, ethylene group or the like, and at least one of them is present), Ar′ represents a substituted or unsubstituted aryl group having 6 to 50 nuclear carbon atoms, X represent an alkyl group or the like, a and b each represent an integer of 0 to 4, and n represents an integer of 1 to 3.]
摘要:
An anthracene derivative represented by the following general formula (1) which enables an organic electroluminescence device to exhibit a great efficiency of light emission and uniform light emission even at high temperatures since crystallization is suppressed and no thermal decomposition takes place during vapor deposition and an organic electroluminescence device utilizing the derivative, are provided. [Ar represents a group represented by the following general formula (2): (L1 and L2 each represent a substituted or unsubstituted methylene group, ethylene group or the like, and at least one of them is present), Ar′ represents a substituted or unsubstituted aryl group having 6 to 50 nuclear carbon atoms, X represent an alkyl group or the like, a and b each represent an integer of 0 to 4, and n represents an integer of 1 to 3.]
摘要:
The present invention provides a white color organic electroluminescence device including: a cathode; an anode; and one or more organic thin film layers including at least a light emitting layer, the one or more organic thin film layers being sandwiched between the cathode and the anode, in which the light emitting layer is constituted of a laminate of a bluish color light emitting layer and a yellow-to-reddish color light emitting layer, and the light emitting layer contains an asymmetric compound containing a condensed ring. This white color organic EL device realizes reduced chromaticity changes, excels in efficiency of light emission and thermal stability, and ensures strikingly prolonged lifetime.
摘要:
The purpose is to remove surface-defective layer existing on the surface of an anode on a CCM substrate, protect the anode surface, prevent a drive voltage of an organic EL element from rising, and maintain uniformity of luminescence. On a substrate (12) a CCM layer (14) for converting light wavelength is formed. On the CCM layer (14) an anode (16) of IZO is formed. On the anode (16) a surface protective layer (18) containing an inorganic compound is formed by an inductively coupled RF plasma support magnetron sputtering. A preferable inorganic compound is SiO2. The surface defective layer of the anode (16) can be removed by the sputtering and the state of being removed can be held by the inorganic compound. Therefore the electrical stability of the anode (16) can be maintained for a long time, thereby improving the display quality of an organic EL display (100).
摘要:
An organic electroluminescence device which comprises a pair of electrodes comprising an anode and a cathode and a layer of organic compounds comprising at least an organic light emitting layer and disposed between the pair of electrodes, wherein the layer of organic compounds comprises a light emitting material and a bis-condensed aromatic cyclic compound. The organic electroluminescence device exhibits suppressed crystallization in driving for a long time or in environments at high temperatures, has improved durability and is advantageously used in practical applications.