- 专利标题: Light emitting element and display device
-
申请号: US15781538申请日: 2016-12-12
-
公开(公告)号: US11276834B2公开(公告)日: 2022-03-15
- 发明人: Shoji Sudo , Masahiro Kawamura , Masakazu Funahashi
- 申请人: SONY CORPORATION
- 申请人地址: JP Tokyo
- 专利权人: SONY CORPORATION
- 当前专利权人: SONY CORPORATION
- 当前专利权人地址: JP Tokyo
- 代理机构: Chip Law Group
- 优先权: JPJP2015-252785 20151225
- 国际申请: PCT/JP2016/086888 WO 20161212
- 国际公布: WO2017/110549 WO 20170629
- 主分类号: H01L51/50
- IPC分类号: H01L51/50 ; H01L51/52 ; H01L51/56 ; H01L27/32 ; H01L51/00
摘要:
A light emitting element includes a structure in which an anode 51, an organic layer 70 containing an organic material and including a light emitting layer, and a cathode 52 are stacked. The light emitting layer includes, from a side of the anode to a side of the cathode, two or more light emitting regions configured to emit different colors of light. Each light emitting region contains a host material and a dopant material. An absolute value of an ionization potential of the host material contained in a light emitting region near to the cathode is larger than an absolute value of an ionization potential of the host material contained in a light emitting region near to the anode.
公开/授权文献
- US20180269417A1 LIGHT EMITTING ELEMENT AND DISPLAY DEVICE 公开/授权日:2018-09-20
信息查询
IPC分类: