Patent ID: 6281627
Filing Date: 2001-08-28
Classification: H01L,Y10S

Abstract:
An organic electroluminescent device comprisinga hole injecting electrode,an electron injecting electrode,at least one organic layer between the electrodes, at least one layer of said organic layer having a light emitting function, anda high resistance inorganic electron injecting layer between said electron injecting electrode and said light emitting layer, said high resistance inorganic electron injecting layer comprising as a first component an oxide of at least one element selected from alkali metal elements, alkaline earth metal elements and lanthanide elements, having a work function of up to 4 eV and as a second component at least one metal having a work function of 3 to 5 eV, and said high resistance inorganic electron injecting layer being capable of blocking holes and having conduction paths for carrying electrons.