Coatable grey polarizer
US10962696B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Jan 28, 2019 |
| Grant date | Mar 30, 2021 |
| Priority date | — |
| Expiry date | Aug 21, 2039 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K59/8791
- WIPO fieldBasic materials chemistry
- WIPO sectorChemistry
Abstract
A linear polarizer may be formed a blue dichroic dye compound, having a maximum dichroic ratio Kd≤12 in an entire visible wavelength range, and a red dichroic dye compound, having a maximum dichroic ratio Kd≤16 in the entire visible wavelength range. The linear polarizer has a dichroic ratio Kd≥18 and a thickness of less than or equal to 2 micrometers. The linear polarizer may form an achromatic polarizer.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.