公开(公告)号：US20170033301A1

公开(公告)日：2017-02-02

申请号：US15223514

申请日：2016-07-29

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： WONSUK HAN ,  DONGCHAN KIM ,  WONJONG KIM ,  EUNGDO KIM ,  DONGKYU SEO ,  JIHYE LEE ,  DAHEA IM ,  SANGHOON YIM ,  YOONHYEUNG CHO

IPC: H01L51/00 ,  C09K11/02 ,  C09K11/06 ,  H01L51/50

CPC classification number: H01L51/0085 ,  C09K11/025 ,  C09K11/06 ,  C09K2211/1007 ,  C09K2211/1014 ,  C09K2211/1029 ,  C09K2211/1037 ,  C09K2211/1044 ,  C09K2211/1059 ,  C09K2211/1092 ,  C09K2211/185 ,  H01L51/0052 ,  H01L51/0054 ,  H01L51/0067 ,  H01L51/0071 ,  H01L51/0072 ,  H01L51/0073 ,  H01L51/0084 ,  H01L51/0087 ,  H01L51/0088 ,  H01L51/0094 ,  H01L51/5004 ,  H01L51/5012 ,  H01L51/5016 ,  H01L51/5096 ,  H01L2251/301 ,  H01L2251/303 ,  H05B33/14 ,  H05B33/20

Abstract: An organic light-emitting device is provided to have high efficiency and long lifespan. The organic light-emitting device includes: a first electrode; a second electrode facing the first electrode; an emission layer disposed between the first electrode and the second electrode and including a host and a dopant; an electron blocking layer disposed between the first electrode and the emission layer; and an electron transport region disposed between the emission layer and the second electrode, in which the electron blocking layer includes a metal halide, a metal oxide, or a combination thereof, and the actually measured lowest unoccupied molecular orbital (LUMO) value of the electron blocking layer is greater than the actually measured LUMO value of the host in the emission layer.

Abstract translation: 提供有机发光装置，其效率高，使用寿命长。 有机发光器件包括：第一电极; 面对所述第一电极的第二电极; 布置在第一电极和第二电极之间并且包括主体和掺杂剂的发射层; 设置在第一电极和发射层之间的电子阻挡层; 以及设置在发射层和第二电极之间的电子传输区域，其中电子阻挡层包括金属卤化物，金属氧化物或其组合，并且实际测量的电子的最低未占分子轨道（LUMO）值 阻挡层大于发射层中主体的实际测量的LUMO值。