公开(公告)号：EP2398083B1

公开(公告)日：2018-06-13

申请号：EP10741075.5

申请日：2010-02-09

申请人： JOLED INC.

发明人： HARADA, Kenji, c/o Panasonic Corporation IPROC ,  TAKEUCHI, Takayuki, c/o Panasonic Corporation ,  NISHIYAMA, Seiji, c/o Panasonic Corporation IPROC ,  KOMATSU, Takahiro, c/o Panasonic Corporation IPROC

IPC分类号： H01L51/50 ,  H05B33/10 ,  H05B33/12 ,  H05B33/22 ,  H01L27/32

CPC分类号： H01L27/3246 ,  H01L51/0005 ,  H01L51/0018 ,  H01L51/5048 ,  H01L51/56

摘要： Provided is a light emitter in which high-definition light-emitting layer is patterned, and which can be manufactured at low cost. To achieve the aim, the light emitter including a first electrode 2, a charge injection transport layer 4, a light-emitting layer 6, and a second electrode 8 that are layered in this order, and at least the light-emitting layer 6 is defined by a bank 5. the bank 5 is liquid-repellent at least on a surface thereof, and the charge injection transport layer 4 is principally composed of a metal compound that is more liquid-philic than the surface of the bank. Also, the charge injection transport layer 4 has a recessed structure so that in a region defined by the bank 5, the charge injection transport layer 4 is lower than a bottom surface 5a of the bank 5.