公开(公告)号：US20210359214A1

公开(公告)日：2021-11-18

申请号：US17239405

申请日：2021-04-23

Applicant: Samsung Display Co., Ltd.

Inventor： Namsu KANG ,  Jin KIM ,  Jongwon LEE ,  Hyunshik LEE ,  Jaehoon HWANG

IPC: H01L51/00

Abstract: An organic light-emitting device includes: a first electrode; a second electrode; m emission units; and m−1 charge generation layer(s), each including an n-type charge generation layer and a p-type charge generation layer and being located between two emission units. The m emission units each include a hole transport region, an electron transport region, and an emission layer between the hole transport region and the electron transport region. An mth electron region included in an mth emission layer that is closest among the m emission units to the second electrode includes an mth electron transport layer. The mth electron transport layer is a single layer consisting of a first compound, the mth emission layer included in the mth emission unit includes a second compound, and the mth electron transport layer and the mth emission layer may be different from each other.

公开(公告)号：US20170345875A1

公开(公告)日：2017-11-30

申请号：US15342147

申请日：2016-11-03

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Ji-hye SHIM ,  Namsu KANG ,  Yeon-woo LEE

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

CPC classification number: H01L27/322 ,  H01L27/3209 ,  H01L27/3213 ,  H01L27/3246 ,  H01L51/0032 ,  H01L51/5056 ,  H01L51/5072 ,  H01L51/5088 ,  H01L51/5237 ,  H01L51/5284

Abstract: A display device includes first to fourth electrodes spaced from each other on a base surface and a fifth electrode spaced from the first to fourth electrodes. A first light emitter is between the first to fourth electrodes and the fifth electrode and overlaps the first to fourth electrodes. A second light emitter is between the fourth and fifth electrodes and overlaps at least one of the first or second electrodes. A third light emitter is between the first to fourth electrodes and the fifth electrode and overlaps at least one of the third or fourth electrodes. A charge generating is layer between the first and second light emitters and between the first and third light emitters. Color filters transmit light from the light emitters in different wavelength ranges.