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
Methods, systems, and media for swapping faces in images
Use of Lactobacillus for liver protection
Method and apparatus for accessing and downloading information from the internet
Fire detector
Fishing apparatus
Semiconductor device and fabrication method
Adaptive flow for thermal cooling of devices
  Randomly Featured Patents
Compound semiconductor device and method for controlling characteristics of the same
Passenger air bag system for vehicles
Heat energy accumulator
Method of and apparatus for extracting abnormal factors in a processing operation
Composite vessel excellent in preservability and process for preparation thereof
Table base leg stretcher and feet
Respiratory mask with adjustable exhaust vent
Ground water thermal transfer method and apparatus
Golf ball and method of manufacturing thereof
Method of framing a wall penetration