Is a
Patent attributes
Patent Jurisdiction
Patent Number
Patent Inventor Names
Masamitsu Furuie0
Masaaki Okunaka0
Naoyuki Itou0
Masato Ito0
Hironori Toyoda0
Date of Patent
August 31, 2010
0Patent Application Number
115267510
Date Filed
September 26, 2006
0Patent Primary Examiner
Patent abstract
An organic electroluminescent display device with an extended lifetime is provided. When at least a hole transport layer HTR, a light emitting layer LUM, an electron transport layer ETR and an electron injection layer EIN are stacked between one electrode (an anode AND or a cathode CTD) formed on the principal surface of an insulating substrate SUB1 and the other electrode (the cathode CTD or the anode AND) by vapor deposition, the concentration of a plasticizer trapped into the layers in a vapor deposition apparatus is limited to less than or equal to 100 ppm.
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