公开(公告)号：US20150188073A1

公开(公告)日：2015-07-02

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 ,  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：US20150097167A1

公开(公告)日：2015-04-09

申请号：US14466686

申请日：2014-08-22

Applicant: LG Display Co., Ltd.

Inventor： Jae-Il SONG ,  Seung-Ryong JOUNG ,  So-Yeon AHN

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

CPC classification number: H01L51/5044

Abstract: An organic light emitting device including a first electrode connected to a thin film transistor formed on a substrate, a second electrode opposite to the first electrode, and an organic laminate formed between the first electrode and the second electrode and including a hole transport layer, a multilayer-light emitting structure, and an electron transport layer. The multilayer-light emitting structure includes at least two light emitting layers emitting light of different colors through recombination of electrons and holes injected through the first and second electrodes, and a charge transport control layer formed of a bipolar material transporting both electrons and holes at boundaries between the at least two light emitting layers and controlling the amount of charges transported between the at least two light emitting layers.

Abstract translation: 一种有机发光器件，包括连接到形成在衬底上的薄膜晶体管的第一电极，与第一电极相对的第二电极和形成在第一电极和第二电极之间的有机叠层，并且包括空穴传输层， 多层发光结构和电子传输层。 多层发光结构包括通过电子注入的第一和第二电极的电荷和空穴的复合而发射不同颜色的光的至少两个发光层，以及由在边界处传输电子和空穴的双极材料形成的电荷传输控制层 在所述至少两个发光层之间并控制在所述至少两个发光层之间传输的电荷量。

公开(公告)号：US20140091289A1

公开(公告)日：2014-04-03

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。