Resources Contact Us Home
Organic electroluminescence display device and method for driving the same

Image Number 6 for United States Patent #7956828.

In an organic electroluminescence display device (30) comprising an organic EL element (26) having a structure wherein an organic luminescent medium (24) is sandwiched between a top electrode (20) and a bottom electrode (22), and a driving circuit (14) for driving the organic EL element (26), the organic luminescent medium (24) comprises a host compound and a triplet-related luminous compound and the driving circuit (14) applies a electric pulse voltage or pulse current having a frequency of 30 Hz or more and a duty ratio of 1/5 or less. In this way, it is possible to provide an organic EL display device which consumes a low electric power and has a long luminous life span, and a method for driving the same.

  Recently Added Patents
Nonaqueous secondary battery with nitrile group-containing compound
Substituted indolo 4,3 FG quinolines useful for treating migraine
Semiconductor devices and methods for changing operating characteristics and semiconductor systems including the same
System and method for enabling image recognition and searching of remote content on display
System and method for judging success or failure of work of robot
Method and apparatus for coordinating hopping of resources in wireless communication systems
Controller with screen
  Randomly Featured Patents
Treatment of traveller's diarrhea
Wall mounted display case for stuffed animals
Method of manufacturing sputter targets with internal cooling channels
System and method for designing a physiometric implant system
Hanger cover
Antiatherosclerotic furochromones
Processes for improving linking efficiencies in the synthesis of star polymers
Process for producing formed articles of aromatic polyamide-imide resin
Interactive variable pathlength device
Process for producing an aromatic polyester fiber