Invention Grant
- Patent Title: Organic electroluminescent device, method for fabricating the same, and light emitting apparatus
-
Application No.: US16334456Application Date: 2018-05-11
-
Publication No.: US11653516B2Publication Date: 2023-05-16
- Inventor: Changyen Wu , Wenfeng Song
- Applicant: BOE TECHNOLOGY GROUP CO., LTD.
- Applicant Address: CN Beijing
- Assignee: BOE TECHNOLOGY GROUP CO., LTD.
- Current Assignee: BOE TECHNOLOGY GROUP CO., LTD.
- Current Assignee Address: CN Beijing
- Agency: Calfee, Halter & Griswold LLP
- Priority: CN 1710336049.8 2017.05.12
- International Application: PCT/CN2018/086488 2018.05.11
- International Announcement: WO2018/205993A 2018.11.15
- Date entered country: 2019-03-19
- Main IPC: H01L51/50
- IPC: H01L51/50

Abstract:
An organic electroluminescent device, a method for fabricating the same, and a light emitting apparatus are disclosed. The organic electroluminescent device comprises a first light emitting layer and a second light emitting layer arranged on a surface of the first light emitting layer at a first side, and partially covers the surface of the first light emitting layer at the first side. Both the first and second light emitting layers are made from a material which has a larger mobility for a first carrier than a second carrier. Light emitting regions of the second light emitting layer and the regions of the first light emitting layer not covered by the second light emitting layer are configured to emit light of different colors at a preset light emitting ratio. A light emitting area ratio between a surface of each light emitting region and surfaces of the regions of the first light emitting layer not covered by the second light emitting layer is preset according to the preset light emitting ratio.
Public/Granted literature
- US20210305528A1 ORGANIC ELECTROLUMINESCENT DEVICE, METHOD FOR FABRICATING THE SAME, AND LIGHT EMITTING APPARATUS Public/Granted day:2021-09-30
Information query
IPC分类: