Patent · US Active

Optical film, polarizer and display device

US12265244B2 · kind B2 · utility

0Cited by

2References

16Claims

0Family size

Assignee

TCL CHINA STAR OPTOELECTRONICS TECHNOLOGY CO., LTD. · CN

Inventors

Ji Li · Longbeilingcun, CN
Hanming Li · Shanghai, CN
Guang ZENG · Lo Wu, CN
Fang TAN · Longbeilingcun, CN
Hongshan YIN · Longbeilingcun, CN
Kai Chen · Beijing, CN

Key dates

Filing date	Aug 31, 2023
Grant date	Apr 1, 2025
Priority date	—
Expiry date	Aug 31, 2043

Classification

Technology area (CPC C)Chemistry; Metallurgy
CPC primaryC09K2323/031
WIPO fieldOptics
WIPO sectorInstruments

Abstract

Disclosed are an optical film, a polarizer, and a display device. The optical film includes a resin and a light diffuser mixed with the resin. The light diffuser includes a whisker and a modifying group attached to a surface of the whisker. The modifying group has a structural formula of —X-A-R, wherein X is selected from SO3 or PO4H, A is selected from a single bond, a substituted or unsubstituted aromatic hydrocarbon group containing 6 to 20 ring atoms, or an imidazolinyl group, and R is selected from a substituted or unsubstituted alkyl group containing 2 to 20 carbon atoms, a substituted or unsubstituted siloxy group containing 2 to 20 carbon atoms, or an alkylolamide group containing 2 to 20 carbon atoms.

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