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:
Apr. 09, 2019
Filed:
Dec. 14, 2017
Applicant:
Sharp Kabushiki Kaisha, Sakai, Osaka, JP;
Inventors:
Noriyuki Yamazumi, Sakai, JP;
Tatsuya Ryohwa, Sakai, JP;
Kenichi Yoshimura, Sakai, JP;
Hiroshi Fukunaga, Sakai, JP;
Kanako Nakata, Sakai, JP;
Makoto Izumi, Sakai, JP;
Assignee:
SHARP KABUSHIKI KAISHA, Sakai, JP;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 33/50 (2010.01); H01L 33/54 (2010.01); H01L 33/62 (2010.01); H01L 33/56 (2010.01); H01L 33/48 (2010.01); F21V 8/00 (2006.01); H01L 33/44 (2010.01); G02F 1/1335 (2006.01); G02F 1/1337 (2006.01); G02F 1/1343 (2006.01); G02F 1/1368 (2006.01);
U.S. Cl.
CPC ...
H01L 33/505 (2013.01); G02B 6/0073 (2013.01); H01L 33/44 (2013.01); H01L 33/486 (2013.01); H01L 33/501 (2013.01); H01L 33/502 (2013.01); H01L 33/54 (2013.01); H01L 33/56 (2013.01); H01L 33/62 (2013.01); G02B 6/0091 (2013.01); G02F 1/1337 (2013.01); G02F 1/1368 (2013.01); G02F 1/133514 (2013.01); G02F 1/133528 (2013.01); G02F 1/134309 (2013.01); G02F 2001/133614 (2013.01); H01L 33/507 (2013.01);
Abstract
A light-emitting device includes a light-emitting element configured to emit excitation light, and a phosphor layer in which phosphor particles are dispersed so as to emit fluorescence in response to the excitation light. The phosphor layer includes a constitutional unit derived from an ionic liquid having a polymerizable functional group. The light-emitting device further includes a protective layer that seals the light-emitting element therein.