Patent · US Active

Linear polarizers and methods of forming a linear polarizer

US12072520B2 · kind B2 · utility

0Cited by
79References
17Claims
0Family size

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Key dates

Filing dateNov 3, 2022
Grant dateAug 27, 2024
Priority date—
Expiry dateNov 3, 2042

Classification

  • Technology area (CPC G)Physics
  • CPC primaryG02B5/3016
  • WIPO fieldOptics
  • WIPO sectorInstruments

Abstract

A linear polarizer layer includes a birefringent aromatic polymer, one or more cationic dyes, and optionally multi-valent cations and optionally iodide anions. Methods of making linear polarizer layer where the linear polarizer layer includes a birefringent aromatic polymer, a cationic dye, and optionally a plurality of iodine ions and optionally a plurality of multivalent cations. Methods of making linear polarizer layer where the linear polarizer layer includes a birefringent aromatic polymer, one or more cationic dyes, iodide anions, and optionally a plurality of multivalent cations. Optical articles that include a linear polarizer layer of the present disclosure.

Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.