Invention Grant
- Patent Title: Display device
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Application No.: US16047076Application Date: 2018-07-27
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Publication No.: US10483480B2Publication Date: 2019-11-19
- Inventor: Koji Yasukawa
- Applicant: Japan Display Inc.
- Applicant Address: JP Tokyo
- Assignee: Japan Display Inc.
- Current Assignee: Japan Display Inc.
- Current Assignee Address: JP Tokyo
- Agency: Michael Best & Friedrich LLP
- Priority: JP2017-156644 20170814
- Main IPC: H01L29/08
- IPC: H01L29/08 ; H01L51/50 ; H01L51/00 ; H01L51/52 ; H01L27/32

Abstract:
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.
Public/Granted literature
- US20190051854A1 DISPLAY DEVICE Public/Granted day:2019-02-14
Information query
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