Polarizer, method of producing polarizer, laminate, and image display device
US11644714B2 · kind B2 · utility
1Cited by
0References
5Claims
0Family size
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Key dates
| Filing date | Aug 31, 2020 |
| Grant date | May 9, 2023 |
| Priority date | — |
| Expiry date | Aug 31, 2040 |
Classification
- Technology area (CPC H)Electricity
- CPC primaryH10K59/8791
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
An object of the present invention is to provide a polarizer, a method of producing a polarizer, a laminate, and an image display device which enable achievement of both the degree of alignment and heat resistance. The polarizer of the present invention is a polarizer formed of a polarizer-forming composition which contains a liquid crystal compound and a dichroic material, in which the liquid crystal compound has a smectic liquid crystallinity, and a phase transition temperature of the polarizer-forming composition from a smectic phase to an isotropic phase or a nematic phase is 120° C. or higher.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.