- Patent Title: Display device having density of the first inorganic layer at a surface contacted the upper electrode is higher than density in a middle of the first inorganic layer
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Application No.: US15926775Application Date: 2018-03-20
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Publication No.: US10243168B2Publication Date: 2019-03-26
- Inventor: Akinori Kamiya , Daisuke Kato
- Applicant: Japan Display Inc.
- Applicant Address: JP Minato-ku
- Assignee: Japan Display Inc.
- Current Assignee: Japan Display Inc.
- Current Assignee Address: JP Minato-ku
- Agency: Oblon, McClelland, Maier & Neustadt, L.L.P.
- Priority: JP2016-030160 20160219
- Main IPC: H01L27/28
- IPC: H01L27/28 ; H01L51/52 ; H01L51/56 ; H01L27/32

Abstract:
A display device includes a light-emitting element layer that emits light with a luminance controlled for each of a plurality of unit pixels constituting an image, and a sealing layer provided on the light-emitting element layer and including a plurality of layers. The plurality of layers of the sealing layer includes at least an inorganic layer provided on the light-emitting element layer, an organic layer provided on the inorganic layer, and an inorganic layer that is an uppermost layer. A density of the inorganic layer that is the uppermost layer in a thickness direction changes in the thickness direction.
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