公开(公告)号：US09343693B2

公开(公告)日：2016-05-17

申请号：US14319515

申请日：2014-06-30

Applicant: Samsung Display Co., LTD.

Inventor： Chang-Ho Lee ,  Hyun-Ju Choi

IPC: H01L29/08 ,  H01L35/24 ,  H01L51/00 ,  H01L51/50

CPC classification number: H01L51/5064 ,  H01L27/3244 ,  H01L51/0072 ,  H01L51/0085 ,  H01L2251/558

Abstract: An organic light emitting diode includes a hole injection layer, a hole transport layer, an optical compensation layer, an emission layer, an electron transport layer and an electron injection layer. The optical compensation layer is disposed on the hole transport layer and includes a phosphorescent host material. Thus, an electron barrier on an interface between the optical compensation layer and an emission layer may be reduced. Thus, the luminance efficiency in a low gray scale area may be decreased, and the stain and roll-off phenomenon in the low gray scale area may be improved.

Abstract translation: 有机发光二极管包括空穴注入层，空穴传输层，光学补偿层，发射层，电子传输层和电子注入层。 光学补偿层设置在空穴传输层上并且包括磷光主体材料。 因此，可以减少光学补偿层和发射层之间的界面上的电子势垒。 因此，可以降低低灰度区域的亮度效率，并且可以提高低灰度区域中的污点和滚降现象。

公开(公告)号：US09385336B2

公开(公告)日：2016-07-05

申请号：US14267103

申请日：2014-05-01

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Se-Jin Cho ,  Chang-Ho Lee ,  Dae-Yup Shin ,  Young-Mok Son ,  Il-Soo Oh ,  Hee-Joo Ko ,  Jin-Young Yun ,  Bo-Ra Lee ,  Yeon-Woo Lee ,  Beom-Joon Kim ,  Pyung-Eun Jeon ,  Hyun-Ju Choi ,  Chang-Min Lee

IPC: H01L51/50 ,  H01L51/00 ,  C09K11/06

CPC classification number: H01L51/5004 ,  C07D213/38 ,  C07D239/26 ,  C09K11/06 ,  C09K2211/1011 ,  C09K2211/1014 ,  C09K2211/1044 ,  H01L51/0058 ,  H01L51/006 ,  H01L51/0061 ,  H01L51/0067 ,  H01L51/0077 ,  H01L51/5056 ,  H01L51/5072 ,  H01L51/5092 ,  H01L51/5206 ,  H01L2251/308 ,  H01L2251/552

Abstract: Provided is an organic light-emitting device including a first electrode, a second electrode disposed opposite to the first electrode, an emission layer disposed between the first electrode and the second electrode, and an electron-transporting layer disposed between the emission layer and the second electrode. The electron-transporting layer includes a first electron-transporting material and a second electron-transporting material. The lowest unoccupied molecular orbital (LUMO) energy level of the first electron-transporting material (EL1) and the lowest unoccupied molecular orbital (LUMO) energy level of the second electron-transporting material (EL2) satisfy the equation 0.1 eV≦|EL1−EL2|≦0.3 eV.

Abstract translation: 本发明提供一种有机发光装置，其包括：第一电极，与第一电极相对设置的第二电极，设置在第一电极和第二电极之间的发射层，以及设置在发光层和第二电极之间的电子传输层 电极。 电子传输层包括第一电子传输材料和第二电子传输材料。 第一电子传输材料（EL1）的最低未占分子轨道（LUMO）能级和第二电子传输材料（EL2）的最低未占分子轨道（LUMO）能级满足等式0.1eV＆nlE; | EL1- EL2 |＆nlE; 0.3 eV。

公开(公告)号：US20150014651A1

公开(公告)日：2015-01-15

申请号：US14190047

申请日：2014-02-25

Applicant: Samsung Display Co., Ltd.

Inventor： Hyun-Ju Choi ,  Chang-Ho Lee

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

CPC classification number: H01L51/0058 ,  H01L51/0052 ,  H01L51/0054 ,  H01L51/0067 ,  H01L51/5072

Abstract: An organic light emitting diode includes a hole injection layer, a hole transport layer, an emission layer, an electron transport layer and an electron injection layer. The hole transport layer is disposed on the hole injection layer. The emission layer is disposed on the hole transport layer. The electron transport layer is disposed on the emission layer and including at least one selected from an anthracene derivative and a pyrene derivative. The electron injection layer is disposed on the electron transport layer. The organic light emitting diode includes a material that electron mobility is lower than a traditional material of the electron transport layer. Thus, a stain and a roll-off phenomenon in the low gray scale area may be improved.

Abstract translation: 有机发光二极管包括空穴注入层，空穴传输层，发射层，电子传输层和电子注入层。 空穴传输层设置在空穴注入层上。 发光层设置在空穴传输层上。 电子传输层设置在发射层上，并且包括选自蒽衍生物和芘衍生物中的至少一种。 电子注入层设置在电子传输层上。 有机发光二极管包括电子迁移率低于电子传输层的传统材料的材料。 因此，可以提高低灰度区域的污渍和滚降现象。

公开(公告)号：US09825244B2

公开(公告)日：2017-11-21

申请号：US15197355

申请日：2016-06-29

Applicant: SAMSUNG DISPLAY CO., LTD.

Inventor： Se-Jin Cho ,  Chang-Ho Lee ,  Dae-Yup Shin ,  Young-Mok Son ,  Il-Soo Oh ,  Hee-Joo Ko ,  Jin-Young Yun ,  Bo-Ra Lee ,  Yeon-Woo Lee ,  Beom-Joon Kim ,  Pyung-Eun Jeon ,  Hyun-Ju Choi ,  Chang-Min Lee

IPC: H01L51/50 ,  H01L51/00 ,  C07D213/38 ,  C07D239/26 ,  C09K11/06 ,  H01L51/52

CPC classification number: H01L51/5004 ,  C07D213/38 ,  C07D239/26 ,  C09K11/06 ,  C09K2211/1011 ,  C09K2211/1014 ,  C09K2211/1044 ,  H01L51/0058 ,  H01L51/006 ,  H01L51/0061 ,  H01L51/0067 ,  H01L51/0077 ,  H01L51/5056 ,  H01L51/5072 ,  H01L51/5092 ,  H01L51/5206 ,  H01L2251/308 ,  H01L2251/552

Abstract: Provided is an organic light-emitting device including a first electrode, a second electrode disposed opposite to the first electrode, an emission layer disposed between the first electrode and the second electrode, and an electron-transporting layer disposed between the emission layer and the second electrode. The electron-transporting layer includes a first electron-transporting material and a second electron-transporting material. The lowest unoccupied molecular orbital (LUMO) energy level of the first electron-transporting material (EL1) and the lowest unoccupied molecular orbital (LUMO) energy level of the second electron-transporting material (EL2) satisfy the equation 0.1 eV≦|EL1−EL2|≦0.3 eV.

公开(公告)号：US09768387B2

公开(公告)日：2017-09-19

申请号：US14190047

申请日：2014-02-25

Applicant: Samsung Display Co., Ltd.

Inventor： Hyun-Ju Choi ,  Chang-Ho Lee

IPC: H01L51/00 ,  H01L51/50

CPC classification number: H01L51/0058 ,  H01L51/0052 ,  H01L51/0054 ,  H01L51/0067 ,  H01L51/5072

Abstract: An organic light emitting diode includes a hole injection layer, a hole transport layer, an emission layer, an electron transport layer and an electron injection layer. The hole transport layer is disposed on the hole injection layer. The emission layer is disposed on the hole transport layer. The electron transport layer is disposed on the emission layer and including at least one selected from an anthracene derivative and a pyrene derivative. The electron injection layer is disposed on the electron transport layer. The organic light emitting diode includes a material that electron mobility is lower than a traditional material of the electron transport layer. Thus, a stain and a roll-off phenomenon in the low gray scale area may be improved.

公开(公告)号：US20150008394A1

公开(公告)日：2015-01-08

申请号：US14097471

申请日：2013-12-05

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

CPC classification number: H01L27/3244 ,  H01L51/5092 ,  H01L2251/558

Abstract: An organic light emitting diode (OLED) display includes a substrate, a thin film transistor formed on the substrate, a first electrode formed on the thin film transistor and electrically connected to the thin film transistor, a hole injection layer (HIL) formed on the first electrode, a hole transport layer (HTL) formed on the hole injection layer (HIL), an emission layer formed on the HTL, an electron transport layer (ETL) formed on the emission layer, a first buffer layer located on the ETL, and a second electrode formed on the first buffer layer.

Abstract translation: 有机发光二极管（OLED）显示器包括基板，形成在基板上的薄膜晶体管，形成在薄膜晶体管上并电连接到薄膜晶体管的第一电极，形成在薄膜晶体管上的空穴注入层（HIL） 第一电极，形成在空穴注入层（HIL）上的空穴传输层（HTL），形成在HTL上的发射层，形成在发射层上的电子传输层（ETL），位于ETL上的第一缓冲层， 以及形成在第一缓冲层上的第二电极。