Invention Application
- Patent Title: ORGANIC EL ELEMENT, ORGANIC EL PANEL, AND ORGANIC EL ELEMENT MANUFACTURING METHOD
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Application No.: US17529277Application Date: 2021-11-18
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Publication No.: US20220158112A1Publication Date: 2022-05-19
- Inventor: Toshiyuki AKIYAMA , Shinichiro ISHINO , Yasuhiro SEKIMOTO , Muneharu SATO , Takeshi KAMIYA , Tomohiko ODA , Mineki HASEGAWA , Masakazu TAKATA
- Applicant: JOLED Inc.
- Applicant Address: JP Tokyo
- Assignee: JOLED Inc.
- Current Assignee: JOLED Inc.
- Current Assignee Address: JP Tokyo
- Priority: JP2020-191806 20201118,JP2021-185923 20211115
- Main IPC: H01L51/50
- IPC: H01L51/50 ; H01L51/52 ; H01L51/56

Abstract:
An organic EL element including an anode, a first functional layer including organic material, disposed above the anode, a second functional layer including organic material, disposed on and in contact with the first functional layer, a light emitting layer disposed on and in contact with the second functional layer, and a cathode disposed above the light emitting layer. A highest occupied molecular orbital (HOMO) level of the organic material of the second functional layer has an energy level at least 0.2 eV lower than that of a HOMO level of the organic material of the first functional layer, and film thickness of the second functional layer is 15 nm or less.
Information query
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