公开(公告)号：US20130313535A1

公开(公告)日：2013-11-28

申请号：US13899755

申请日：2013-05-22

Applicant: LG Display Co., Ltd.

Inventor： Jeong-Haeng Heo ,  Jae-Man Lee ,  Jeong-Kyun Shin ,  Gwi-Jeong Cho ,  So-Yeon Ahn

IPC: H01L51/50 ,  H01L51/56

CPC classification number: H01L51/5064 ,  H01L27/3209 ,  H01L51/5008 ,  H01L51/56 ,  H01L2251/558

Abstract: An organic light emitting device includes a substrate, a first electrode on the substrate, a second electrode, a first stack on the first electrode and including a hole injection layer, a first hole transport layer, a first mixed layer, a second hole transport layer, a first light emitting layer, and a first electron transport layer sequentially laminated, a second stack between the first stack and the second electrode and including a third hole transport layer, a fourth hole transport layer, a second light emitting layer, and a second electron transport layer sequentially laminated, and a charge generation layer between the first stack and the second stack to control charge balance between the first and second stacks. The first mixed layer includes materials used to form the first and second hole transport layers.

Abstract translation: 一种有机发光器件，包括基板，基板上的第一电极，第二电极，第一电极上的第一堆叠，并且包括空穴注入层，第一空穴传输层，第一混合层，第二空穴传输层 ，第一发光层和第一电子传输层，第一堆叠和第二电极之间的第二堆叠，并且包括第三空穴传输层，第四空穴传输层，第二发光层和第二层 电子传输层，以及在第一堆叠和第二堆叠之间的电荷产生层，以控制第一和第二堆叠之间的电荷平衡。 第一混合层包括用于形成第一和第二空穴传输层的材料。

公开(公告)号：US20140070196A1

公开(公告)日：2014-03-13

申请号：US14023670

申请日：2013-09-11

Applicant: LG Display Co., Ltd.

Inventor： Shin-Han Kim ,  Hwa-Kyung Kim ,  Hong-Seok Choi ,  Gwi-Jeong Cho ,  Youn-Seok Kam ,  Mi-Young Han ,  Hye-Min Oh ,  Tae-Shick Kim ,  Seong-Su Jeon ,  Chi-Yul Song

IPC: H01L51/50

CPC classification number: H01L51/5024 ,  H01L51/504 ,  H01L2251/5384

Abstract: Disclosed is an organic light emitting display device with an enhanced light emission efficiency at high current and an enhancement in panel efficiency through prevention of a roll-off phenomenon. The organic light emitting display device includes first and second electrodes formed on a substrate facing each other. A hole injection layer, a hole transport layer, at least first and second light emitting layers, and an electron transport layer are sequentially stacked between the first and second electrodes. The first light emitting layer includes different hosts while being doped with the same dopant in different dosages. The first light emitting layer includes a first host and a second host, and the second light emitting layer includes the first host and a third host different from the second host. The first and second light emitting layers are doped with the same phosphorescent yellow-phosphorescent green dopant in the same dosage.

Abstract translation: 公开了一种在高电流下具有增强的发光效率并通过防止滚降现象提高面板效率的有机发光显示装置。 有机发光显示装置包括形成在彼此面对的基板上的第一和第二电极。 空穴注入层，空穴传输层，至少第一和第二发光层以及电子传输层依次层叠在第一和第二电极之间。 第一发光层包括不同的主体，同时以不同的剂量掺杂相同的掺杂剂。 第一发光层包括第一主体和第二主体，第二发光层包括第一主机和与第二主机不同的第三主机。 第一和第二发光层以相同的剂量掺杂相同的磷光黄磷光绿色掺杂剂。

公开(公告)号：US09444066B2

公开(公告)日：2016-09-13

申请号：US14558430

申请日：2014-12-02

Applicant: LG DISPLAY CO., LTD.

Inventor： So-Yeon Ahn ,  Chang-Wook Han ,  Hong-Seok Choi ,  Seung-Ryong Joung ,  Gwi-Jeong Cho ,  Hee-Dong Choi

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

CPC classification number: H01L51/5044 ,  H01L27/3209 ,  H01L27/3244 ,  H01L51/5278 ,  H01L2251/558

Abstract: An organic electroluminescent device and organic electroluminescent display device having enhanced efficiency are discussed. In one example, the organic electroluminescent device includes first and second electrodes facing each other on a substrate and at least two emission layers formed between the first and second electrodes and realizing blue light, wherein, among the emission layers, a first blue emission layer close to the first electrode includes a first blue dopant having a different maximum luminescence wavelength than that of a second blue dopant of a second blue emission layer close to the second electrode.

Abstract translation: 讨论了提高效率的有机电致发光器件和有机电致发光显示器件。 在一个示例中，有机电致发光器件包括在衬底上彼此面对的第一和第二电极以及形成在第一和第二电极之间并实现蓝色光的至少两个发射层，其中在发射层中，第一蓝色发射层闭合 第一电极包括具有与靠近第二电极的第二蓝色发射层的第二蓝色掺杂剂不同的最大发光波长的第一蓝色掺杂剂。

公开(公告)号：US20140117338A1

公开(公告)日：2014-05-01

申请号：US14062128

申请日：2013-10-24

Applicant: LG DISPLAY CO., LTD.

Inventor： Gwi-Jeong Cho ,  Jae-Man Lee ,  Jeong-Haeng Heo ,  So-Yeon Ahn ,  Tae-Shick Kim ,  Hee-Dong Choi

IPC: H01L51/52

CPC classification number: H01L51/5044 ,  H01L51/0054 ,  H01L51/50 ,  H01L51/506 ,  H01L51/52 ,  H01L51/5278

Abstract: An organic light emitting display device with improved lifespan is disclosed. The organic light emitting display device includes first and second electrodes facing each other on a substrate, at least two light emitting units formed between the first and second electrodes, an N-type charge generation layer and a P-type charge generation layer sequentially stacked between the light emitting units, and at least one auxiliary charge generation layer formed between at least any one of the P-type charge generation layer and the N-type charge generation layer and an emitting layer of the light emitting unit disposed on an upper or lower portion of the at least any one thereof and generating electrons and holes supplied to the emitting layer of the light emitting unit.

Abstract translation: 公开了一种寿命延长的有机发光显示装置。 有机发光显示装置包括在基板上彼此面对的第一和第二电极，形成在第一和第二电极之间的至少两个发光单元，N型电荷产生层和P型电荷产生层， 所述发光单元以及形成在所述P型电荷产生层和所述N型电荷产生层中的至少任何一个上的至少一个辅助电荷产生层以及设置在上部或下部的所述发光单元的发光层 并且产生提供给发光单元的发光层的电子和空穴。

公开(公告)号：US10862060B2

公开(公告)日：2020-12-08

申请号：US13899755

申请日：2013-05-22

Applicant: LG Display Co., Ltd.

Inventor： Jeong-Haeng Heo ,  Jae-Man Lee ,  Jeong-Kyun Shin ,  Gwi-Jeong Cho ,  So-Yeon Ahn

IPC: H01L51/50 ,  H01L51/56 ,  H01L27/32

Abstract: An organic light emitting device includes a substrate, a first electrode on the substrate, a second electrode, a first stack on the first electrode and including a hole injection layer, a first hole transport layer, a first mixed layer, a second hole transport layer, a first light emitting layer, and a first electron transport layer sequentially laminated, a second stack between the first stack and the second electrode and including a third hole transport layer, a fourth hole transport layer, a second light emitting layer, and a second electron transport layer sequentially laminated, and a charge generation layer between the first stack and the second stack to control charge balance between the first and second stacks. The first mixed layer includes materials used to form the first and second hole transport layers.

公开(公告)号：US09425422B2

公开(公告)日：2016-08-23

申请号：US14023670

申请日：2013-09-11

Applicant: LG Display Co., Ltd.

Inventor： Shin-Han Kim ,  Hwa-Kyung Kim ,  Hong-Seok Choi ,  Gwi-Jeong Cho ,  Youn-Seok Kam ,  Mi-Young Han ,  Hye-Min Oh ,  Tae-Shick Kim ,  Seong-Su Jeon ,  Chi-Yul Song

IPC: H01L29/08 ,  H01L51/50

CPC classification number: H01L51/5024 ,  H01L51/504 ,  H01L2251/5384

Abstract: Disclosed is an organic light emitting display device with an enhanced light emission efficiency at high current and an enhancement in panel efficiency through prevention of a roll-off phenomenon. The organic light emitting display device includes first and second electrodes formed on a substrate facing each other. A hole injection layer, a hole transport layer, at least first and second light emitting layers, and an electron transport layer are sequentially stacked between the first and second electrodes. The first light emitting layer includes different hosts while being doped with the same dopant in different dosages. The first light emitting layer includes a first host and a second host, and the second light emitting layer includes the first host and a third host different from the second host. The first and second light emitting layers are doped with the same phosphorescent yellow-phosphorescent green dopant in the same dosage.

Abstract translation: 公开了一种在高电流下具有增强的发光效率并通过防止滚降现象提高面板效率的有机发光显示装置。 有机发光显示装置包括形成在彼此面对的基板上的第一和第二电极。 空穴注入层，空穴传输层，至少第一和第二发光层以及电子传输层依次层叠在第一和第二电极之间。 第一发光层包括不同的主体，同时以不同的剂量掺杂相同的掺杂剂。 第一发光层包括第一主体和第二主体，第二发光层包括第一主机和与第二主机不同的第三主机。 第一和第二发光层以相同的剂量掺杂相同的磷光黄磷光绿色掺杂剂。

公开(公告)号：US09048447B2

公开(公告)日：2015-06-02

申请号：US14062128

申请日：2013-10-24

Applicant: LG DISPLAY CO., LTD.

Inventor： Gwi-Jeong Cho ,  Jae-Man Lee ,  Jeong-Haeng Heo ,  So-Yeon Ahn ,  Tae-Shick Kim ,  Hee-Dong Choi

IPC: H01L29/08 ,  H01L35/24 ,  H01L51/00 ,  H01L51/50 ,  H01L51/52

CPC classification number: H01L51/5044 ,  H01L51/0054 ,  H01L51/50 ,  H01L51/506 ,  H01L51/52 ,  H01L51/5278

Abstract: An organic light emitting display device with improved lifespan is disclosed. The organic light emitting display device includes first and second electrodes facing each other on a substrate, at least two light emitting units formed between the first and second electrodes, an N-type charge generation layer and a P-type charge generation layer sequentially stacked between the light emitting units, and at least one auxiliary charge generation layer formed between at least any one of the P-type charge generation layer and the N-type charge generation layer and an emitting layer of the light emitting unit disposed on an upper or lower portion of the at least any one thereof and generating electrons and holes supplied to the emitting layer of the light emitting unit.

Abstract translation: 公开了一种寿命延长的有机发光显示装置。 有机发光显示装置包括在基板上彼此面对的第一和第二电极，形成在第一和第二电极之间的至少两个发光单元，N型电荷产生层和P型电荷产生层， 所述发光单元以及形成在所述P型电荷产生层和所述N型电荷产生层中的至少任何一个上的至少一个辅助电荷产生层以及设置在上部或下部的所述发光单元的发光层 并且产生提供给发光单元的发光层的电子和空穴。

公开(公告)号：US08878171B2

公开(公告)日：2014-11-04

申请号：US14036163

申请日：2013-09-25

Applicant: LG Display Co., Ltd.

Inventor： Jeong-Haeng Heo ,  Jae-Man Lee ,  Gwi-Jeong Cho ,  So-Yeon Ahn

IPC: H01L51/50

CPC classification number: H01L51/5064 ,  H01L27/3209 ,  H01L51/5044 ,  H01L51/5072 ,  H01L2251/5384

Abstract: An organic light emitting display device includes first and second electrodes facing each other on a substrate, a first stack including a first hole transport layer, a second hole transport layer, a first emitting layer, and a first electron transport layer, the layers being sequentially stacked on the first electrode, a second stack including a third hole transport layer, a fourth hole transport layer, a second emitting layer including at least two hosts and a single dopant and having at least three emitting areas, and a second electron transport layer, the layers being sequentially stacked between the first stack and the second electrode, wherein the second emitting layer includes a first emitting area including a material of the fourth hole transport layer, a second emitting area including a material of the second electron transport layer, and a third emitting area including the at least two hosts.

Abstract translation: 有机发光显示装置包括在基板上彼此面对的第一和第二电极，包括第一空穴传输层，第二空穴传输层，第一发光层和第一电子传输层的第一堆叠，所述层依次 堆叠在第一电极上的第二堆叠，包括第三空穴传输层，第四空穴传输层，包括至少两个主体的第二发光层和具有至少三个发射区域的单个掺杂剂的第二堆叠和第二电子传输层， 所述层依次堆叠在所述第一堆叠和所述第二电极之间，其中所述第二发光层包括包括所述第四空穴传输层的材料的第一发射区域，包括所述第二电子传输层的材料的第二发射区域，以及 包括至少两个主机的第三发射区域。