Polarizing plate and optical display device comprising same
US12066646B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Aug 3, 2021 |
| Grant date | Aug 20, 2024 |
| Priority date | — |
| Expiry date | Aug 3, 2041 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10F39/12
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
Provided are a polarizing plate and an optical display device comprising same, the polarizing plate comprising a polarizer and a protective layer formed on at least one surface of the polarizer, wherein: the polarizing plate comprises a first area and a second area formed within an image display area; the first area and the second area have different single transmittances in the same wavelength; and the first area has a single transmittance of 45% to 85%, a maximum absorbance of 1.0 to 5.0 in a wavelength in a range from about 270 nm to about 325 nm, a maximum absorbance of 0.5 to 4.0 in a wavelength which exceeds about 325 nm and is lower than or equal to 420 nm, and a maximum absorbance of 0.5 or less in a wavelength in a range from about 500 nm to about 800 nm.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.