Organic multi-element light-emitting layer and organic light-emitting element using organic multi-element light-emitting layer

The invention provides an organic multi-element light-emitting layer and an organic light-emitting element using the organic multi-element light-emitting layer. The organic multi-element light-emitting layer includes a guest light-emitting body material and at least three main light-emitting body materials selected from the group consisting of an electron transport material, an electron injectionmaterial, an electron hole transport material, an electron hole injection material, an electron hole blocking material, and a functional auxiliary material. The organic light-emitting element comprises a first electrode, a flat layer arranged on the first electrode, an electron hole transport layer arranged on the flat layer, the organic multi-element light-emitting layer arranged on the electronhole transport layer, and a second electrode arranged on the organic multi-element light-emitting layer. 本发明提供一种有机多元发光层以及使用此有机多元发光层的有机发光元件。有机多元发光层包含客发光体材料以及至少三种主发光体材料，所述至少三种主发光体材料选自由电子传输材料、电子注入材料、电洞传输材料、电洞注入材料、电洞阻挡材料及功能性辅助材料组成