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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 10476033 B1

PDFFull Text
Date of Patent:
Nov. 12, 2019

Filed:

Nov. 20, 2015

Light-emitting element, display panel, display device, electronic device and method for producing light-emitting element

Applicant:

Sharp Kabushiki Kaisha, Sakai, Osaka, JP;

Inventors:

Masanori Ohara, Sakai, JP;

Hideki Uchida, Sakai, JP;

Katsuhiro Kikuchi, Sakai, JP;

Satoshi Inoue, Sakai, JP;

Yuto Tsukamoto, Sakai, JP;

Kazuki Matsunaga, Sakai, JP;

Eiji Koike, Sakai, JP;

Assignee:

SHARP KABUSHIKI KAISHA, Sakai, Osaka, JP;

Attorney:

ScienBiziP, P.C.

Primary Examiner:

Kenneth Parker

Assistant Examiner:

Long H Le

Int. Cl.
CPC ...
H01L 51/52 (2006.01); H01L 51/50 (2006.01); H01L 21/32 (2006.01); G09F 9/30 (2006.01); H01L 27/32 (2006.01); H05B 33/26 (2006.01);
U.S. Cl.
CPC ...
H01L 51/5262 (2013.01); G09F 9/30 (2013.01); H01L 27/32 (2013.01); H01L 27/3213 (2013.01); H01L 27/3288 (2013.01); H01L 51/50 (2013.01); H01L 51/5012 (2013.01); H01L 51/5212 (2013.01); H01L 51/5218 (2013.01); H01L 51/5228 (2013.01); H01L 51/5234 (2013.01); H01L 51/5271 (2013.01); H05B 33/26 (2013.01); H01L 2251/5315 (2013.01);
Abstract

A light-emitting element includes at least a first trench portion having an indented shape within a single light-emitting region. In the first trench portion, a first electrode, an EL layer, and a second electrode are layered in this order and in contact with each other. One of the first electrode and the second electrode includes a reflective electrode, and concave-convex portions of the submicron order configured to diffract surface plasmons are provided on the surface of the reflective electrode on a side closer to the EL layer.

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