公开(公告)号：US09887250B2

公开(公告)日：2018-02-06

申请号：US15127209

申请日：2015-02-24

Applicant: JOLED INC.

Inventor： Noriyuki Matsusue ,  Kazuhiro Yoneda ,  Minh Hiep Hoang

IPC: H01L27/32 ,  H01L51/50 ,  H01L51/52 ,  H01L51/56 ,  H01L51/00

CPC classification number: H01L27/3246 ,  H01L27/3211 ,  H01L27/3213 ,  H01L27/322 ,  H01L51/0005 ,  H01L51/0008 ,  H01L51/001 ,  H01L51/504 ,  H01L51/5044 ,  H01L51/5206 ,  H01L51/5221 ,  H01L51/5265 ,  H01L51/56 ,  H01L2227/323 ,  H01L2251/5315 ,  H01L2251/533 ,  H01L2251/558

Abstract: An organic EL display panel that includes light-reflective electrodes, a red light-emitting layer, a green light-emitting layer, a first blue light-emitting layer, a charge generating layer, a second blue light-emitting layer, and a light-transmissive electrode. In a red sub-pixel region, a first optical length is from 20 nm to 50 nm, and a second optical length is from 210 nm to 230 nm. In a green sub-pixel region, the first optical length is from 20 nm to 50 nm, and the second optical length is from 240 nm to 295 nm. In a blue sub-pixel region, the first optical length is from 20 nm to 60 nm, and the second optical length is from 195 nm to 205 nm.