公开(公告)号：US20180114939A1

公开(公告)日：2018-04-26

申请号：US15725641

申请日：2017-10-05

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Il Soo OH ,  Bo Ra LEE ,  Pyung Eun JEON ,  Je Hong CHOI

IPC: H01L51/50 ,  H01L51/52

CPC classification number: H01L51/5044 ,  H01L51/0072 ,  H01L51/5072 ,  H01L51/508 ,  H01L51/5278 ,  H01L2251/5346

Abstract: A light emitting device including a first electrode, a light emitting portion on the first electrode, the light emitting portion including a plurality of light emitting units and at least one interconnecting layer between ones of the light emitting units that are adjacent to each other, and a second electrode on the light emitting portion. The at least one interconnecting layer includes a p-type charge generation layer doped with a p-type dopant and an n-type charge generation layer doped with an n-type dopant. At least one of the p-type charge generation layer and the n-type charge generation layer has a concentration gradient of the p-type dopant or the n-type dopant.

公开(公告)号：US20150008404A1

公开(公告)日：2015-01-08

申请号：US14315854

申请日：2014-06-26

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Il Soo OH ,  Chang Ho LEE ,  Ji Hwan YOON ,  Dae Yup SHIN ,  Hee Joo KO ,  Se Jin CHO ,  Jin Young YUN ,  Bora LEE ,  Yeon-Woo LEE ,  Beom Joon KIM ,  Pyung Eun JEON ,  Hyun Ju CHOI ,  Joong Won SIM ,  In Jae LEE

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

CPC classification number: H01L27/3258 ,  H01L27/3211 ,  H01L27/3216 ,  H01L27/3244 ,  H01L27/3262 ,  H01L51/0059 ,  H01L51/0061 ,  H01L51/0072 ,  H01L51/0073 ,  H01L51/0074 ,  H01L51/0078 ,  H01L51/0085 ,  H01L51/009 ,  H01L51/5016 ,  H01L51/5056 ,  H01L51/5072 ,  H01L51/5088 ,  H01L51/5092 ,  H01L51/5096 ,  H01L51/5203 ,  H01L2251/558

Abstract: An organic light emitting diode (OLED) display includes a substrate, a thin film transistor disposed on the substrate, a first electrode disposed on the thin film transistor and electrically connected to the thin film transistor, a first auxiliary layer disposed on the first electrode, an emission layer disposed on the first auxiliary layer, an electron transport layer disposed on the emission layer, a first buffer layer disposed on the electron transport layer, and a second electrode disposed on the first buffer layer.

Abstract translation: 有机发光二极管（OLED）显示器包括：衬底，设置在衬底上的薄膜晶体管，设置在薄膜晶体管上并电连接到薄膜晶体管的第一电极，设置在第一电极上的第一辅助层， 设置在第一辅助层上的发射层，设置在发射层上的电子传输层，设置在电子传输层上的第一缓冲层和设置在第一缓冲层上的第二电极。