申请人:SAMSUNG ELECTRONICS CO., LTD.
公开号:US11271190B2
公开(公告)日:2022-03-08
Provided are a light emitting device includes a first electrode and a second electrode facing each other; an emissive layer disposed between the first electrode and the second electrode and a display device including the same. The emissive layer comprises: a first emission layer disposed on the first electrode and having a hole transporting property; a second emission layer and a third emission layer disposed on the first emission layer; wherein the second emission layer comprises an organic compound having a bipolar transport property and the third emission layer has a composition different from the first emission layer and the second emission layer; wherein the first emission layer, the second emission layer, and the third emission layer comprises a plurality of quantum dots, and wherein the first emission layer, the second emission layer, and the third emission layer are configured to emit light of a same color.
本发明提供了一种发光器件,包括相互面对的第一电极和第二电极;设置在第一电极和第二电极之间的发射层以及包括该发射层的显示装置。该发射层包括:设置在第一电极上并具有空穴传输特性的第一发射层;设置在第一发射层上的第二发射层和第三发射层;其中,第二发射层包括具有双极传输特性的有机化合物,第三发射层的组成不同于第一发射层和第二发射层;其中,第一发射层、第二发射层和第三发射层包括多个量子点,并且第一发射层、第二发射层和第三发射层被配置为发射相同颜色的光。