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:
Sep. 22, 2026

Filed:

Sep. 12, 2023
Applicant:

Qdlux Inc., Hsinchu City, TW;

Inventors:

Jung-Hua Chang, Hsinchu City, TW;

Ching-Liang Yi, Hsinchu City, TW;

Chen-Yang Huang, Hsinchu City, TW;

Assignee:

QDLUX, INC., Hsinchu City, TW;

Attorneys:
Primary Examiner:
Assistant Examiner:
Int. Cl.
CPC ...
H10H 20/851 (2025.01); H10H 20/01 (2025.01); H10W 90/00 (2026.01);
U.S. Cl.
CPC ...
H10H 20/8512 (2025.01); H10W 90/00 (2026.01); H10H 20/0361 (2025.01);
Abstract

An optical part includes a quantum dot film layer, a lower transparent film layer, and an outer protective film. The quantum dot film layer includes an upper surface, a lower surface, and a lateral surface. The lateral surface connects the upper surface with the lower surface, and the quantum dot film layer is a film containing light emitting semiconductor nanoparticles. The lower transparent film layer is disposed on the lower surface of the quantum dot film layer. The outer protective film directly or indirectly covers the upper surface of the quantum dot film layer, and extends to cover the lateral surface of the quantum dot film layer.


Find Patent Forward Citations

Chang, Jung-Hua. (2026). Manufacturing method of light-emitting device with quantum dots (U.S. Patent No. 12745490). U.S. Patent and Trademark Office. https://idiyas.com/patent/badge/12745490

Data source: USPTO (United States Patent and Trademark Office) public patent records. Weekly synchronization. How IDiyas builds this profile

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