Invention Grant
- Patent Title: Inorganic el element, display element, image display device, and system
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Application No.: US16981933Application Date: 2019-03-13
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Publication No.: US11374054B2Publication Date: 2022-06-28
- Inventor: Naoyuki Ueda , Yuki Nakamura , Yukiko Abe , Shinji Matsumoto , Yuji Sone , Ryoichi Saotome , Sadanori Arae , Minehide Kusayanagi , Yuichi Ando
- Applicant: RICOH COMPANY, LTD.
- Applicant Address: JP Tokyo
- Assignee: RICOH COMPANY, LTD.
- Current Assignee: RICOH COMPANY, LTD.
- Current Assignee Address: JP Tokyo
- Agency: Xsensus LLP
- Priority: JPJP2018-050862 20180319,JPJP2019-032268 20190226,JPJP2019-043381 20190311
- International Application: PCT/JP2019/010244 WO 20190313
- International Announcement: WO2019/181686 WO 20190926
- Main IPC: H01L27/15
- IPC: H01L27/15 ; G09G3/32 ; H01L33/18 ; H01L33/26 ; H05B33/14 ; H01L27/12
Abstract:
An inorganic EL element including: an anode; a hole transporting layer; a light emitting layer; an electron transporting layer; and a cathode, the anode, the hole transporting layer, the light emitting layer, the electron transporting layer, and the cathode being stacked, wherein the hole transporting layer is an oxide film, the light emitting layer is an oxide film, and the electron transporting layer is an oxide film.
Public/Granted literature
- US20210043679A1 INORGANIC EL ELEMENT, DISPLAY ELEMENT, IMAGE DISPLAY DEVICE, AND SYSTEM Public/Granted day:2021-02-11
Information query
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