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LED utilizing internal color conversion with light extraction enhancements

專利號
US10868213B2
公開日期
2020-12-15
申請人
Lumileds LLC(US CA San Jose)
發(fā)明人
Robert David Armitage; Isaac Harshman Wildeson; Parijat Pramil Deb
IPC分類
H01L33/10; H01L33/00; H01L33/50; H01L33/46; H01L33/08
技術(shù)領(lǐng)域
qw,epitaxial,layer,el,pl,may,qws,dichroic,reflector,be
地域: CA CA San Jose

摘要

A light emitting diode (LED) device may include an n-type layer formed on a transparent substrate. A photoluminescent (PL) in the n-type layer quantum well (QW) and an electroluminescent (EL) QW may be formed on the n-type layer. The PL QW and the EL QW may be separated from one another by a portion of the n-type layer. A p-type layer may be formed on the EL QW. Trenches may be formed extending into the n-type layer, the trenches defining an emitting area. A passivation material may be formed on sidewalls of the trenches and n-type contacts may be formed therein. A p-type contact may be formed on an upper surface of the p-type layer. A dichroic mirror may be formed on at least a lower surface of the transparent substrate.

說明書

Although features and elements are described above in particular combinations, one of ordinary skill in the art will appreciate that each feature or element can be used alone or in any combination with the other features and elements. In addition, the methods described herein may be implemented in a computer program, software, or firmware incorporated in a computer-readable medium for execution by a computer or processor. Examples of computer-readable media include electronic signals (transmitted over wired or wireless connections) and computer-readable storage media. Examples of computer-readable storage media include, but are not limited to, a read only memory (ROM), a random access memory (RAM), a register, cache memory, semiconductor memory devices, magnetic media such as internal hard disks and removable disks, magneto-optical media, and optical media such as CD-ROM disks, and digital versatile disks (DVDs).

權(quán)利要求

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