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:
Nov. 12, 2024
Filed:
Mar. 23, 2022
Applicant:
3m Innovative Properties Company, St. Paul, MN (US);
Inventors:
Hideaki Shirotori, Yokohama, JP;
Naota Sugiyama, Tokyo, JP;
Taiki Ihara, Tokyo, JP;
Hiroki Hayashi, Sagamihara, JP;
Assignee:
3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US);
Attorney:
Primary Examiner:
Int. Cl.
CPC ...
G02F 1/1335 (2006.01); C07D 249/20 (2006.01);
U.S. Cl.
CPC ...
G02F 1/133514 (2013.01); C07D 249/20 (2013.01); G02F 1/133536 (2013.01); G02F 1/133553 (2013.01); G02F 2202/10 (2013.01);
Abstract
An optical system includes a display, a backlight configured to emit at least a light in a first wavelength range extending between about 400 nm and about 500 nm, and an optical film disposed adjacent the backlight and configured to absorb a light in a second wavelength range extending between about 415 nm to about 455 nm, wherein a ratio of the light in the second wavelength range transmitted by the optical film to the light in the first wavelength range transmitted by the optical film is less than or equal to 50%.