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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 10680039 B1

PDFFull Text
Date of Patent:
Jun. 09, 2020

Filed:

Apr. 26, 2017

Display device and manufacturing method therefor

Applicant:

Sharp Kabushiki Kaisha, Sakai, Osaka, JP;

Inventors:

Yuto Tsukamoto, Sakai, JP;

Seiichi Mitsui, Sakai, JP;

Shinichi Kawato, Sakai, JP;

Satoshi Inoue, Sakai, JP;

Yuhki Kobayashi, Sakai, JP;

Takashi Ochi, Sakai, JP;

Assignee:

SHARP KABUSHIKI KAISHA, Sakai, JP;

Attorney:

Keating & Bennett, LLP

Primary Examiner:

Tony Tran

Int. Cl.
CPC ...
H01L 27/32 (2006.01); H01L 51/52 (2006.01); H05B 33/14 (2006.01); H01L 51/50 (2006.01); H01L 51/56 (2006.01); H01L 51/00 (2006.01);
U.S. Cl.
CPC ...
H01L 27/3213 (2013.01); H01L 27/322 (2013.01); H01L 27/3218 (2013.01); H01L 27/3246 (2013.01); H01L 51/5016 (2013.01); H01L 51/5036 (2013.01); H01L 51/5044 (2013.01); H01L 51/5092 (2013.01); H01L 51/5218 (2013.01); H01L 51/5234 (2013.01); H01L 51/5253 (2013.01); H01L 51/5265 (2013.01); H01L 51/56 (2013.01); H05B 33/145 (2013.01); H01L 27/3216 (2013.01); H01L 27/3244 (2013.01); H01L 51/0067 (2013.01); H01L 51/0072 (2013.01); H01L 51/0085 (2013.01); H01L 51/5056 (2013.01); H01L 51/5072 (2013.01); H01L 51/5096 (2013.01); H01L 2251/533 (2013.01); H01L 2251/5315 (2013.01); H01L 2251/558 (2013.01);
Abstract

A blue fluorescent light-emitting layer is provided in common for first and second subpixels, a green fluorescent light-emitting layer is provided in common for second and third subpixels, and a red light-emitting layer is provided in common for the second and fourth subpixels. In the second subpixel, an opposing surface distance is less than or equal to a Förster radius, and at least of the blue fluorescent light-emitting layer and the green fluorescent light-emitting layer are layered with the red light-emitting layer with a separation layer interposed therebetween.

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