Polarizer protection film, polarizing plate including same, and liquid crystal display device including polarizing plate
US11002886B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Dec 23, 2016 |
| Grant date | May 11, 2021 |
| Priority date | — |
| Expiry date | Dec 23, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2201/54
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Provided are a polarizer protection film, a polarizing plate comprising the same, and a liquid crystal display device comprising the polarizing plate. The polarizer protection film has: a moisture permeability ranging from approximately 0 g/m2/24 hr to approximately 100 g/m2/24 hr; a value for a MD-direction shrinkage rate/a TD-direction shrinkage rate, ranging from 0.8 to 1.3; an in-plane phase difference (Re) ranging from approximately 0 nm to approximately 350 nm; a thickness-direction phase difference (Rth) ranging from approximately 2500 nm to approximately 8000 nm; and a thickness of approximately 10 μm to approximately 60 μm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.