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.

Date of Patent:
Aug. 09, 2022

Filed:

Jun. 30, 2020
Applicant:

Lumileds Llc, San Jose, CA (US);

Inventors:

Kentaro Shimizu, Sunnyvale, CA (US);

Hisashi Masui, San Jose, CA (US);

Yu-Chen Shen, Sunnyvale, CA (US);

Danielle Russell Chamberlin, Belmont, CA (US);

Peter Josef Schmidt, Aachen, DE;

Assignee:

Lumileds LLC, San Jose, CA (US);

Attorney:
Primary Examiner:
Int. Cl.
CPC ...
H01L 33/32 (2010.01); H01L 33/50 (2010.01); H01L 33/46 (2010.01); H01L 27/15 (2006.01); H01L 33/38 (2010.01); H01L 25/075 (2006.01); G09G 3/32 (2016.01); H01L 33/00 (2010.01); H01L 33/60 (2010.01); H01L 33/62 (2010.01);
U.S. Cl.
CPC ...
H01L 33/505 (2013.01); G09G 3/32 (2013.01); H01L 25/0753 (2013.01); H01L 27/156 (2013.01); H01L 33/005 (2013.01); H01L 33/32 (2013.01); H01L 33/382 (2013.01); H01L 33/46 (2013.01); H01L 33/50 (2013.01); H01L 33/60 (2013.01); H01L 33/62 (2013.01); H01L 2933/0016 (2013.01); H01L 2933/0025 (2013.01); H01L 2933/0033 (2013.01); H01L 2933/0041 (2013.01); H01L 2933/0091 (2013.01);
Abstract

A wavelength converting layer is partially diced to generate a first and second wavelength converting layer segment and to allow partial isolation between the first segment and the second segment such that the wavelength converting layer segments are connected by a connecting wavelength converting layer. The first and second wavelength converting layer segments are attached to a first and second light emitting device, respectively to create a first and second pixel. The connecting wavelength converting layer segment is removed to allow complete isolation between the first pixel and the second pixel. An optical isolation material is applied to exposed surfaces of the first and second pixel and a sacrificial portion of the wavelength converting layer segments and optical isolation material attached to the sacrificial portion is removed from a surface facing away from the first light emitting device, to expose a emitting surface of the first wavelength converting layer segment.


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