Patent ID: 7723916

Claim:
An organic electroluminescence element, comprising: an anode; a cathode; and an organic light emitting medium layer including a buffer layer and an organic light emitting layer, said organic light emitting medium layer being between said anode and said cathode, and said buffer layer including at least two kinds of inorganic material, wherein said buffer layer is a layered product including at least two kinds of inorganic material, wherein said layered product includes a hole transport layer provided on the side of said anode and a functional layer having at least one of the following functions, a hole injection function and an electron blocking function, said functional layer being provided on the side of said organic light emitting layer, wherein said functional layer has said electron blocking function, and wherein an absolute value of an electron affinity value of said functional layer is smaller than an absolute value of an electron affinity value of said organic light emitting layer.