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.:
Date of Patent:
Jul. 26, 2022
Filed:
Mar. 28, 2018
Applicant:
Sharp Kabushiki Kaisha, Sakai, JP;
Inventors:
Kenichi Yoshimura, Sakai, JP;
Tadashi Kobashi, Sakai, JP;
Masashi Kago, Sakai, JP;
Tatsuya Ryohwa, Sakai, JP;
Makoto Izumi, Sakai, JP;
Assignee:
SHARP KABUSHIKI KAISHA, Osaka, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 27/32 (2006.01); G02F 1/1335 (2006.01); H01L 51/50 (2006.01); H01L 51/52 (2006.01); G02F 1/13357 (2006.01); H01L 51/00 (2006.01);
U.S. Cl.
CPC ...
H01L 27/322 (2013.01); G02F 1/133514 (2013.01); H01L 27/3211 (2013.01); H01L 51/502 (2013.01); H01L 51/52 (2013.01); G02F 1/133617 (2013.01); H01L 51/0097 (2013.01); H01L 51/5056 (2013.01); H01L 51/5072 (2013.01); H01L 51/5088 (2013.01); H01L 51/5092 (2013.01); H01L 51/5206 (2013.01); H01L 51/5253 (2013.01); H01L 2227/326 (2013.01); H01L 2251/5338 (2013.01);
Abstract
A light-emitting device includes: an anode electrode; a cathode electrode; a plurality of light-emitting layers sandwiched between the anode electrode and the cathode electrode; and a light absorption layer disposed between the plurality of light-emitting layers and a light extraction surface, wherein the plurality of light-emitting layers include InP based quantum dots and are configured to emit at least green color of light and red color of light, and the light absorption layer selectively absorbs light at 570 to 610 nm.