- 专利标题： Electron transport layer including stacked electron transport film, and method of manufacturing the same, light-emitting device and display apparatus
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申请号： US16963777申请日： 2019-12-25
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公开(公告)号： US11502268B2公开(公告)日： 2022-11-15
- 发明人: Zhao Zhang , Ruichao Liu , Xiaofeng Zhang , Xuelu Wang
- 申请人： ORDOS YUANSHENG OPTOELECTRONICS CO., LTD. , BOE TECHNOLOGY GROUP CO., LTD.
- 申请人地址： CN Inner Mongolia; CN Beijing
- 专利权人： ORDOS YUANSHENG OPTOELECTRONICS CO., LTD.,BOE TECHNOLOGY GROUP CO., LTD.
- 当前专利权人： ORDOS YUANSHENG OPTOELECTRONICS CO., LTD.,BOE TECHNOLOGY GROUP CO., LTD.
- 当前专利权人地址： CN Inner Mongolia; CN Beijing
- 代理机构： Procopio, Cory, Hargreaves & Savitch LLP
- 优先权： CN201910150041.1 20190228
- 国际申请： PCT/CN2019/128231 WO 20191225
- 国际公布： WO2020/173203 WO 20200903
- 主分类号： H01L29/08
- IPC分类号： H01L29/08 ; H01L51/50 ; H01L51/56
摘要：
An electron transport layer includes a first electron transport film and a second electron transport film. The second electron transport film is disposed at a side of the first electron transport film and is stacked with the first electron transport film. An energy level of a conduction band of a material included in the second electron transport film is greater than an energy level of a conduction band of a material included in the first electron transport film, and the energy level of the conduction band of the material included in the second electron transport film is less than an energy level of a conduction band of a material included in the light-emitting layer.
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