公开(公告)号：US20140353642A1

公开(公告)日：2014-12-04

申请号：US14291129

申请日：2014-05-30

Applicant: JAPAN DISPLAY INC.

Inventor： Hironori TOYODA ,  Masato ITO ,  Toshihiro SATO

IPC: H01L51/50

CPC classification number: H01L51/5044 ,  H01L51/0081 ,  H01L51/5092

Abstract: An organic electroluminescence display device includes a first light-emitting unit and a second light-emitting unit that are stacked between a cathode and an anode. The first light-emitting unit includes a first electron injection layer and a first light-emitting layer that are stacked. The first electron injection layer is arranged closer to the cathode side than the first light-emitting layer is. The second light-emitting unit includes a second electron injection layer and a second light-emitting layer that are stacked. The second electron injection layer is arranged closer to the cathode side than the second light-emitting layer is. Each of the first electron injection layer and the second electron injection layer includes a compound containing lithium. The number of particles of lithium is from 0.1 mmol/cm3 to 0.86 mmol/cm3.

Abstract translation: 有机电致发光显示装置包括堆叠在阴极和阳极之间的第一发光单元和第二发光单元。 第一发光单元包括堆叠的第一电子注入层和第一发光层。 第一电子注入层比第一发光层更靠近阴极侧。 第二发光单元包括层叠的第二电子注入层和第二发光层。 第二电子注入层比第二发光层更靠近阴极侧。 第一电子注入层和第二电子注入层都包含含有锂的化合物。 锂的颗粒数为0.1mmol / cm3至0.86mmol / cm3。