公开(公告)号：US20180212178A1

公开(公告)日：2018-07-26

申请号：US15926888

申请日：2018-03-20

Applicant: LG Display Co., Ltd.

Inventor： Mi-Young HAN ,  Chang Wook HAN ,  Tae Il KUM ,  Gwi Jeong CHO ,  Tae Shick KIM ,  Se Ung KIM ,  Hee Dong CHOI

IPC: H01L51/50 ,  H01L51/52

CPC classification number: H01L51/504 ,  H01L51/5044 ,  H01L51/5265 ,  H01L51/5278

Abstract: Disclosed is a white organic light emitting device for enhancing emission efficiency and a color viewing angle or a color reproduction rate. The white organic light emitting device includes a first emission part between a first electrode and a second electrode, the first emission part having a first emission layer, a second emission part on the first emission part, the second emission part having a second emission layer, and a third emission part on the second emission part, the third emission part having a third emission layer. At least two emission layers of the first to third emission layers emit lights having a same color to enhance emission efficiency and a color viewing angle, and the at least two emission layers are adjacent to each other.

公开(公告)号：US20170279059A1

公开(公告)日：2017-09-28

申请号：US15618017

申请日：2017-06-08

Applicant: LG Display Co., Ltd.

Inventor： Mi-Young HAN ,  Chang Wook HAN ,  Tae Il KUM ,  Gwi Jeong CHO ,  Tae Shick KIM ,  Se Ung KIM ,  Hee Dong CHOI

IPC: H01L51/50 ,  H01L51/52

CPC classification number: H01L51/504 ,  H01L51/5044 ,  H01L51/5265 ,  H01L51/5278

Abstract: Disclosed is a white organic light emitting device for enhancing emission efficiency and a color viewing angle or a color reproduction rate. The white organic light emitting device includes a first emission part between a first electrode and a second electrode, the first emission part having a first emission layer, a second emission part on the first emission part, the second emission part having a second emission layer, and a third emission part on the second emission part, the third emission part having a third emission layer. At least two emission layers of the first to third emission layers emit lights having a same color to enhance emission efficiency and a color viewing angle, and the at least two emission layers are adjacent to each other.