Resources Contact Us Home
Browse by: INVENTOR PATENT HOLDER PATENT NUMBER DATE
 
 
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
Computer product, information retrieval method, and information retrieval apparatus
Cycloalkylamine substituted isoquinoline and isoquinolinone derivatives
Implantable neuro-stimulation electrode with fluid reservoir
Polyester resin for toner, electrostatic charge image developing toner, electrostatic charge image developer, toner cartridge, process cartridge, image forming apparatus, and image forming met
Method and system for providing cloud based network security services
Nonvolatile semiconductor memory device and method for controlling the same
Magnetic recording medium, information storage device, and method of manufacturing magnetic recording medium
  Randomly Featured Patents
Online, safe service technique for automated libraries
Hot-melt silicone pressure sensitive adhesive with siloxylated polyether waxes as additives
Method, system and program for identifying a test specification for testing a file element
Process for the preparation of 1,1,1,3,3-penta-fluoropropane and/or 1,1,1,3,3,3-hexafluoropropane
Process for producing a honeycomb body, especially a catalyst carrier body
Process and catalyst for producing polyethylene having a broad molecular weight distribution
Releasing elastic roller and fixing device utlizing the same
Connection state control device, connection state control method, and connection state controlling program
Light emitting apparatus
Planar heater for liquid crystal element