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The patent badge is an abbreviated version of the USPTO patent document. The patent badge does contain a link to the full patent document.

The patent badge is an abbreviated version of the USPTO patent document. The patent badge covers the following: Patent number, Date patent was issued, Date patent was filed, Title of the patent, Applicant, Inventor, Assignee, Attorney firm, Primary examiner, Assistant examiner, CPCs, and Abstract. The patent badge does contain a link to the full patent document (in Adobe Acrobat format, aka pdf). To download or print any patent click here.

Patent No.:

US 10998526 B1

PDFFull Text
Date of Patent:
May. 04, 2021

Filed:

Sep. 06, 2018

Organic el display panel including a multilayer sealing layer, organic el display device, and manufacturing method thereof

Applicant:

Joled Inc., Tokyo, JP;

Inventors:

Keiji Horikawa, Tokyo, JP;

Kenji Harada, Tokyo, JP;

Akifumi Okigawa, Tokyo, JP;

Assignee:

JOLED INC., Tokyo, JP;

Attorney:

Hauptman Ham, LLP

Primary Examiner:

Khiem D Nguyen

Assistant Examiner:

Laura M Dykes

Int. Cl.
CPC ...
H01L 51/52 (2006.01); H01L 51/56 (2006.01); H01L 51/50 (2006.01); H01L 51/00 (2006.01); H01L 27/32 (2006.01);
U.S. Cl.
CPC ...
H01L 51/5259 (2013.01); H01L 51/524 (2013.01); H01L 51/5256 (2013.01); H01L 51/56 (2013.01); H01L 27/3244 (2013.01); H01L 27/3246 (2013.01); H01L 51/0005 (2013.01); H01L 51/0023 (2013.01); H01L 51/5012 (2013.01); H01L 51/5072 (2013.01); H01L 51/5218 (2013.01); H01L 51/5234 (2013.01); H01L 2227/323 (2013.01); H01L 2251/301 (2013.01);
Abstract

An organic electroluminescence (EL) display panel includes a substrate; a plurality of organic EL elements; and a sealing layer in this order. In the organic EL display panel, the sealing layer has a three-layered structure in the order of a first sealing layer, a second sealing layer, and a third sealing layer. In the organic EL display panel, the first sealing layer, the second sealing layer, and the third sealing layer each include amorphous silicon nitride. In the organic EL display panel, when composition of the first sealing layer, composition of the second sealing layer, and composition of the third sealing layer are each indicated as SiN, a value of x in the composition of the second sealing layer is greater than both a value of x in the composition of the first sealing layer and a value of x in the composition of the third sealing layer.

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