公开(公告)号：US20230019409A1

公开(公告)日：2023-01-19

申请号：US17949282

申请日：2022-09-21

Applicant: Japan Display Inc.

Inventor： Yoshifumi KAMEI ,  Yoshikatsu IMAZEKI ,  Yoichi KAMIJO ,  Koichi MIYASAKA ,  Shuichi OSAWA

IPC: F21K2/08

Abstract: Disclosed is a light-emitting element including a first electrode, a first light-emitting layer, an ionic-liquid layer, a second light-emitting layer, and a second electrode. The first light-emitting layer is located over the first electrode and includes a first emissive polymer and an ionic liquid. The ionic-liquid layer is located over the first light-emitting layer and includes an ionic liquid. The second light-emitting layer is located over the ionic-liquid layer and includes a second emissive polymer and an ionic liquid. The second electrode is located over the second light-emitting layer. The light-emitting element may further include a first substrate under the first electrode, a second substrate over the second electrode, and a sealing layer located between the first substrate and the second substrate and surrounding the first electrode.

公开(公告)号：US20230013572A1

公开(公告)日：2023-01-19

申请号：US17950176

申请日：2022-09-22

Applicant: Japan Display Inc.

Inventor： Shuichi OSAWA ,  Yoshikatsu IMAZEKI ,  Yoichi KAMIJO ,  Koichi MIYASAKA ,  Yoshifumi KAMEI

IPC: H01L33/38 ,  H01L33/62 ,  H01L25/075

Abstract: A display device includes a first substrate having a first surface and a second surface opposite to the first surface, a first light-emitting layer including a first polymer and an ionic liquid on the second surface, a first electrode provided on a first side surface of the first light-emitting layer, a second electrode provided on a second side surface of the first light-emitting layer opposite to the first side surface of the first light-emitting layer, and a second substrate in contact with the first light-emitting layer opposite to the first substrate.