公开(公告)号：US09905616B2

公开(公告)日：2018-02-27

申请号：US15141910

申请日：2016-04-29

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Hajin Song ,  Jihwan Yoon ,  Sangwoo Lee ,  Sangwoo Pyo

IPC: H01L29/08 ,  H01L35/24 ,  H01L51/00 ,  H01L27/32 ,  H01L51/50 ,  H01L51/56

CPC classification number: H01L27/3211 ,  H01L27/3276 ,  H01L51/5004 ,  H01L51/5016 ,  H01L51/5036 ,  H01L51/5056 ,  H01L51/5072 ,  H01L51/5265 ,  H01L51/56 ,  H01L2227/323 ,  H01L2251/5376 ,  H01L2251/5384 ,  H01L2251/552

Abstract: An organic light-emitting device and display apparatus, the device including a first electrode; a second electrode facing the first electrode; an emission layer between the first and second electrode; a hole control layer between the first electrode and the emission layer; and an electron control layer between the emission layer and the second electrode, wherein the emission layer includes a plurality of sub-emission layers to emit light having different wavelengths, at least portions of the plurality of sub-emission layers do not overlap one another, the plurality of sub-emission layers include: a first sub-emission layer including a first color light-emitting dopant, and a second sub-emission layer including a second color light-emitting dopant, the first and second sub-emission layers each include a hole-transporting and electron-transporting host which form an exciplex, and a triplet energy of the exciplex is equal to or greater than triplet energies of the first and second color light-emitting dopant.

公开(公告)号：US20170358634A1

公开(公告)日：2017-12-14

申请号：US15668546

申请日：2017-08-03

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Sangwoo Pyo ,  Hajin Song ,  Jihwan Yoon ,  Heunseung Lee

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

CPC classification number: H01L27/3211 ,  H01L51/504 ,  H01L51/5218 ,  H01L51/5265

Abstract: A display device includes a substrate having a red pixel region, a blue pixel region, and a green pixel region. An anode is on the substrate, a light-emitting layer is on the anode, and a cathode is on the light-emitting layer, wherein the light-emitting layer includes a red light-emitting layer emitting red light on the red pixel region, a blue light-emitting layer emitting blue light on the blue pixel region, and a green light-emitting layer emitting green light on the red pixel region, the blue pixel region, and the green pixel region. Each of the red light, the blue light, and the green light is resonated between the anode and the cathode.