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:
Oct. 14, 2025
Filed:
Oct. 03, 2022
Applicant:
Stmicroelectronics (Crolles 2) Sas, Crolles, FR;
Inventors:
Marios Barlas, Grenoble, FR;
Kirill Shiianov, Grenoble, FR;
Emmanuel Josse, La Motte Servolex, FR;
Stephane Monfray, Eybens, FR;
Assignee:
STMicroelectronics (Crolles 2) SAS, Crolles, FR;
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/01 (2006.01); H10F 39/00 (2025.01);
U.S. Cl.
CPC ...
G02F 1/0147 (2013.01); H10F 39/806 (2025.01); G02F 2203/055 (2013.01); G02F 2203/11 (2013.01);
Abstract
A phase change filter is formed by an arrangement of dots, wherein each dot is made of a phase change material. A heating layer of electrically conductive material extends under the arrangement of dots. Current passing through the heating layer changes the dots between two states to alter attenuation of light passing through the filter.