公开(公告)号：US20220238834A1

公开(公告)日：2022-07-28

申请号：US17516402

申请日：2021-11-01

Applicant: BOE Technology Group Co., Ltd.

Inventor： Meng SUN ,  Shuyun XU ,  Hui ZHOU ,  Lihui MA ,  Xiaobo DU ,  Yansong LI

IPC: H01L51/50 ,  H01L51/56

Abstract: The present application provides a light-emitting component and a method for manufacturing the same, a display substrate, and a display device. The light-emitting component comprises: an anode layer stacked on one side of a base, a first functional layer group including a plurality of functional layers, an organic light-emitting layer, a second functional layer group including a plurality of functional layers, and a cathode layer; the first functional layer group comprises a hole injection delaying layer close to the organic light-emitting layer, and the hole injection delaying layer is used for reducing a hole transport rate; and/or the second functional layer group comprises an electron injection delaying layer close to the organic light-emitting layer, and the electron injection delaying layer is used for reducing an electron transport rate.

公开(公告)号：US20250113704A1

公开(公告)日：2025-04-03

申请号：US18729992

申请日：2023-09-26

Applicant: BOE Technology Group Co., Ltd.

Inventor： Hui ZHOU ,  Yansong LI ,  Xiaobo DU ,  Guanyin WEN ,  Lihui MA

IPC: H10K50/19

Abstract: A light-emitting device includes a first electrode and a second electrode opposite to each other, and at least two light-emitting units in a stack between the first electrode and the second electrode. The light-emitting device further includes a charge generation unit between adjacent light-emitting units. The charge generation unit includes a first charge generation unit and a second charge generation unit sequentially arranged in a direction from the second electrode to the first electrode. The first charge generation unit is made of a material including a first host material, and a first guest material doped in the first host material, the first charge generation unit is configured to generate a first charge, and the first guest material is configured to absorb light emitted from the light-emitting units to cause the first charge generation unit to generate the first charge.

公开(公告)号：US20230403872A1

公开(公告)日：2023-12-14

申请号：US18033494

申请日：2020-11-20

Applicant: BOE Technology Group Co., Ltd.

Inventor： Lihui MA ,  Meng SUN

IPC: H10K50/11 ,  H10K50/18 ,  H10K50/15 ,  H10K85/60

CPC classification number: H10K50/11 ,  H10K50/181 ,  H10K50/15 ,  H10K85/6572

Abstract: A light-emitting device, a display panel and a display apparatus are disclosed. The light-emitting device includes an anode and a cathode arranged oppositely, and a light-emitting function layer located between the anode and the cathode; the light-emitting function layer includes a light-emitting layer, a first auxiliary function layer located between the light-emitting layer and the anode, a second auxiliary function layer located between the light-emitting layer and the cathode, and at least one co-doped layer; and a difference in material physical properties between two film layers adjacent to the co-doped layer is greater than a set value, and the co-doped layer includes a material formed by mixing materials of the two adjacent film layers.