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:
Jun. 17, 2025
Filed:
Oct. 23, 2020
Applicant:
Intematix Corporation, Fremont, CA (US);
Inventor:
Yi-Qun Li, Danville, CA (US);
Assignee:
Intematix Corporation, Fremont, CA (US);
Attorney:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H10H 20/812 (2025.01); H10H 20/851 (2025.01);
U.S. Cl.
CPC ...
H10H 20/812 (2025.01); H10H 20/8512 (2025.01);
Abstract
A white light emitting device (backlight) comprises: a Multiple Quantum Well (MQW) dual-wavelength LED; and a narrowband photoluminescence material that generates red light with a peak emission wavelength from about 620 nm to about 660 nm. The MQW dual-wavelength LED comprises at least one first Quantum Well (QW) that generates blue light with a dominant wavelength from 440 nm to 470 nm and at least one second Quantum Well (QW) to generate green light with a dominant wavelength from 520 nm to 540 nm.