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。