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
Determining phase-specific parameters of a physiological variable
Plants and seeds of corn variety CV294874
High conductive water-based silver ink
Halogen-free flame retardants for epoxy resin systems
Mitigating single point failure of devices in an analyte monitoring system and methods thereof
Machine tool with an electrical generator for passive power generation
Vehicle speed verification system and method
  Randomly Featured Patents
Ink cartridge with self-closing valve
Wood planing machine
Pour spout
Reticle transporter
Drinking fountain
Tamperproof fire hydrants
Ball-throwing device for tennis balls
Energy supply structure for combined resistance heater for H. F. heater oven
Video graphics controller with selectable pattern features for line draws
Tree support