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:
Apr. 01, 2025
Filed:
Sep. 27, 2019
3m Innovative Properties Company, St. Paul, MN (US);
Fuguo Xu, Shanghai, CN;
Adam D. Haag, Woodbury, MN (US);
Martin E. Denker, Vadnais Heights, MN (US);
Timothy J. Nevitt, Red Wing, MN (US);
3M INNOVATIVE PROPERTIES COMPANY, St. Paul, MN (US);
Abstract
An optical system () includes an emissive display () and a reflective polarizer () disposed on the display (). The display () includes a blue pixel () emitting light having a peak at a wavelength λ. For substantially normally incident light: for the wavelength λ, the reflective polarizer () reflects at least 30% of the incident light having a first polarization state (b) and transmits at least 75% of the incident light having an orthogonal second polarization state(a); and for at least one wavelength λgreater than λ, λ-λ≤50 nm, the reflective polarizer () transmits at least 75% of the incident light for each of the first and second polarization states. For the wavelength λ, the reflective polarizer () has a maximum optical transmittance Tfor light incident at a first incident angle, and an optical transmittance T/2 for light incident at a second incident angle greater than the first incident angle by less than about 50 degrees.