NOVEL COMBINATION OF A HOST COMPOUND AND A DOPANT COMPOUND AND AN ORGANIC ELECTROLUMINESCENCE DEVICE COMPRISING THE SAME
                        
                            
                                申请人:Rohm and Haas Electronic Materials Korea Ltd.
                            
                            
                                公开号:US20150159084A1
                            
                            
                                公开(公告)日:2015-06-11
                            
                            The present invention relates to a specific combination of a dopant compound and a host compound, and an organic electroluminescent device comprising the same. The organic electroluminescent device of the present invention emits yellow-green light; lowers the driving voltage of the device by improving the current characteristic of the device; and improves power efficiency and operational lifespan.