- 专利标题: OLED DEVICE AND PREPARATION METHOD THEREFOR, DISPLAY SUBSTRATE, AND DISPLAY APPARATUS
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申请号: US17789520申请日: 2021-08-05
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公开(公告)号: US20230030418A1公开(公告)日: 2023-02-02
- 发明人: Zhiqiang JIAO , Lilei ZHANG
- 申请人: BOE Technology Group Co., Ltd.
- 申请人地址: CN Beijing
- 专利权人: BOE Technology Group Co., Ltd.
- 当前专利权人: BOE Technology Group Co., Ltd.
- 当前专利权人地址: CN Beijing
- 优先权: CN202011045684.9 20200928
- 国际申请: PCT/CN2021/110763 WO 20210805
- 主分类号: H01L51/50
- IPC分类号: H01L51/50 ; H01L51/56
摘要:
An OLED device, including: an anode (100), a cathode (300), and a first light-emitting unit (200) located between the anode (100) and the cathode (300). The first light-emitting unit (200) comprises a hole functional unit (210) and a light-emitting layer (220) that are sequentially stacked. The hole functional unit (210) is located between the anode (100) and the light-emitting layer (220). The hole functional unit (210) comprises a first functional layer (211) for transporting electrons, a second functional layer (212) for injecting holes, and a third functional layer (213) for transporting holes, which are sequentially stacked. The first functional layer (211) comprises an electron transport material on which one or more among an active metal and an active metal compound is doped.
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