Polarizing plate and display device including same
US11880055B2 · kind B2 · utility
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8Claims
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Key dates
| Filing date | Jul 17, 2020 |
| Grant date | Jan 23, 2024 |
| Priority date | — |
| Expiry date | Jan 3, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2203/05
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A polarizing plate and a display apparatus including the same. The polarizing plate includes: a polarizer and a protective film stacked at least on one surface of the polarizer, wherein the polarizing plate includes at least a depolarization region in an in-plane direction thereof, and the depolarization region has a maximum absorbance of 0.5 to 1.5 in the wavelength range of 380 nm to 420 nm and a light transmittance ratio (ratio of light transmittance at a wavelength of 590 nm to light transmittance at a wavelength of 400 nm) of 1 to 2.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.