- Patent Title: Display device including light emitting element including reflection electrode on which multiple metallic conductive layers are stacked and method for manufacturing same
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Application No.: US16464333Application Date: 2017-09-28
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Publication No.: US11545541B2Publication Date: 2023-01-03
- Inventor: Tohru Okabe , Ryosuke Gunji , Hiroki Taniyama , Shinsuke Saida , Hiroharu Jinmura , Yoshihiro Nakada , Akira Inoue
- Applicant: Sharp Kabushiki Kaisha
- Applicant Address: JP Sakai
- Assignee: Sharp Kabushiki Kaisha
- Current Assignee: Sharp Kabushiki Kaisha
- Current Assignee Address: JP Sakai
- Agency: Keating & Bennett, LLP
- International Application: PCT/JP2017/035250 WO 20170928
- International Announcement: WO2019/064437 WO 20190404
- Main IPC: H01L27/32
- IPC: H01L27/32 ; H01L51/52 ; H01L51/56

Abstract:
A wiring line is provided on a TFT layer, in which the wiring line is formed in the same layer and formed of the same material as those of a reflection electrode. The reflection electrode includes a plurality of metallic conductive layers made up of a low resistance metallic material, an oxide-based lower transparent conductive layer provided on a lower surface side of a lowermost metallic conductive layer constituting a lowermost layer, an oxide-based upper transparent conductive layer having light reflectivity and provided on an upper surface side of an uppermost metallic conductive layer constituting an uppermost layer, and an oxide-based intermediate transparent conductive layer provided between the plurality of metallic conductive layers.
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