公开(公告)号：US20160155956A1

公开(公告)日：2016-06-02

申请号：US15018536

申请日：2016-02-08

Applicant: LG DISPLAY CO., LTD.

Inventor： In-Bum SONG ,  Gee-Sung CHAE ,  Joong-Hwan YANG ,  Suk-Young BAE ,  Chun-Ki KIM

IPC: H01L51/00

CPC classification number: H01L51/0072 ,  C09B57/00 ,  C09B57/008 ,  C09B69/008 ,  C09K11/06 ,  C09K2211/1029 ,  C09K2211/1044 ,  C09K2211/1077 ,  C09K2211/1081 ,  H01L51/005 ,  H01L51/0052 ,  H01L51/006 ,  H01L51/0061 ,  H01L51/0073 ,  H01L51/0074 ,  H01L51/0094 ,  H01L51/5004 ,  H01L51/5012 ,  H01L51/5056 ,  H01L51/5088 ,  H01L2251/552 ,  H05B33/14

Abstract: Discussed is an organic electroluminescent device including a first charge carrying layer being disposed adjacent to a first electrode; and a second charge carrying layer disposed adjacent to a second electrode, wherein the first charge carrying layer includes an emitting part, a hole injection part and a hole transporting part between the hole injection part and the emitting part, wherein at least one of the hole injection part, the hole transporting part and the emitting part includes a host material having an organic compound of Formula: wherein R is substituted or non-substituted C1 to C12 alkyl, and A and B are symmetrically or asymmetrically positioned in 2-position or 7-position of the fluorene core, and wherein each of A and B is independently selected from substituted or non-substituted aromatic group or substituted or non-substituted heterocyclic group.