发明申请
- 专利标题: DISPLAY DEVICE
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申请号: US16047076申请日: 2018-07-27
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公开(公告)号: US20190051854A1公开(公告)日: 2019-02-14
- 发明人: Koji YASUKAWA
- 申请人: Japan Display Inc.
- 优先权: JP2017-156644 20170814
- 主分类号: H01L51/50
- IPC分类号: H01L51/50 ; H01L51/00 ; H01L51/52
摘要:
A display device including a pixel electrode, a counter electrode, and an organic layer arranged between the pixel electrode and the counter electrode, wherein the organic layer includes a hole injection layer in contact with the pixel electrode, a hole transport layer above the hole injection layer, a light emitting layer and an electron transport layer, the hole injection layer includes an inorganic material, and the inorganic material has a work function of 4.4 eV or less and includes one element or a plurality of elements selected from Na, Mg, K, Rb, Sr, Cs, Ba, Fr, Ca, Yb, Li, Al, Sm, Er and Ho, or a fluoride or an oxide of the elements.
公开/授权文献
- US10483480B2 Display device 公开/授权日:2019-11-19
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