- Patent Title: Top emission organic EL element and manufacturing method thereof
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Application No.: US16891495Application Date: 2020-06-03
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Publication No.: US11552140B2Publication Date: 2023-01-10
- Inventor: Junri Ishikura , Norihiko Ochi , Naoari Shibata , Masayuki Morohashi , Shigeki Sasaki
- Applicant: CANON KABUSHIKI KAISHA
- Applicant Address: JP Tokyo
- Assignee: CANON KABUSHIKI KAISHA
- Current Assignee: CANON KABUSHIKI KAISHA
- Current Assignee Address: JP Tokyo
- Agency: Venable LLP
- Priority: JPJP2017-233724 20171205
- Main IPC: H01L27/32
- IPC: H01L27/32 ; H01L51/00 ; H01L51/52 ; H01L51/56

Abstract:
A top emission organic EL element includes a substrate, an insulating layer including a hole portion, a lower electrode, a light emitting layer, a bank surrounding the lower electrode and the light emitting layer, and an upper transparent electrode. The insulating layer, the lower electrode, the light emitting layer, the bank, and the upper transparent electrode are disposed above the substrate. The bank is arranged on the insulating layer so as to surround the hole portion. The lower electrode is configured to cover an inner side of the hole portion and an area, where the bank is not arranged, of an upper surface of the insulating layer, and a thickness at a center area of the lower electrode is 150 nm or more.
Public/Granted literature
- US20200295105A1 TOP EMISSION ORGANIC EL ELEMENT AND METHOD FOR PRODUCING SAME Public/Granted day:2020-09-17
Information query
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