公开(公告)号：US20150188073A1

公开(公告)日：2015-07-02

申请号：US14558430

申请日：2014-12-02

Applicant: LG DISPLAY CO., LTD.

Inventor： So-Yeon AHN ,  Chang-Wook HAN ,  Hong-Seok CHOI ,  Seung-Ryong JOUNG ,  Gwi-Jeong CHO ,  Hee-Dong CHOI

IPC: H01L51/50 ,  H01L27/32

CPC classification number: H01L51/5044 ,  H01L27/3209 ,  H01L27/3244 ,  H01L51/5278 ,  H01L2251/558

Abstract: An organic electroluminescent device and organic electroluminescent display device having enhanced efficiency are discussed. In one example, the organic electroluminescent device includes first and second electrodes facing each other on a substrate and at least two emission layers formed between the first and second electrodes and realizing blue light, wherein, among the emission layers, a first blue emission layer close to the first electrode includes a first blue dopant having a different maximum luminescence wavelength than that of a second blue dopant of a second blue emission layer close to the second electrode.

Abstract translation: 讨论了提高效率的有机电致发光器件和有机电致发光显示器件。 在一个示例中，有机电致发光器件包括在衬底上彼此面对的第一和第二电极以及形成在第一和第二电极之间并实现蓝色光的至少两个发射层，其中在发射层中，第一蓝色发射层闭合 第一电极包括具有与靠近第二电极的第二蓝色发射层的第二蓝色掺杂剂不同的最大发光波长的第一蓝色掺杂剂。