ORGANIC LIGHT-EMITTING ELEMENT AND ORGANIC LIGHT-EMITTING DISPLAY DEVICE

PROBLEM TO BE SOLVED: To provide: an organic light-emitting element of a multilayer stack structure, of which the structure is simplified, and the drive voltage is reduced; and an organic light-emitting display device arranged by use of such an organic light-emitting element.SOLUTION: An organic light-emitting element comprises a positive electrode, a negative electrode, and stacks between the positive and negative electrodes; the number of the stacks is n (n is a natural number of 2 or larger). In the organic light-emitting element, each stack includes a hole transport layer, a light-emitting layer and an electron transport layer. The organic light-emitting element includes an n-type charge-generating layer and a p-type charge-generating layer between the different stacks. The p-type charge-generating layer includes a particular indenofluorenedione derivative or a particular imine derivative. 【課題】構造を単純化し、駆動電圧を減少させた多層スタック構造の有機発光素子及びこれを用いた有機発光表示装置を提供する。【解決手段】正極と負極との間にｎ（２以上の自然数）個のスタックを有する有機発光素子において、前記各スタックは、正孔輸送層、発光層及び電子輸送層を含み、互いに異なる各スタックの間にはｎ型電荷生成層及びｐ型電荷生成層を含み、前記ｐ型電荷生成層は、特定のインデノフルオレンジオン誘導体または特定のイミン誘導体からなることを特徴とする有機発光素子を構成する。【選択図】図３Ｄ