Phase difference compensating element, liquid crystal display device, and projection-type image display device
US11281049B2 · kind B2 · utility
0Cited by
1References
4Claims
0Family size
Assignee
Inventor
Key dates
| Filing date | May 23, 2019 |
| Grant date | Mar 22, 2022 |
| Priority date | — |
| Expiry date | May 23, 2039 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F2413/02
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
In order to provide a phase difference compensating element that has durability and that can improve contrast in a liquid crystal display with high precision while suppressing high costs and long lead times, the present invention is provided with, on a substrate, a first optical anisotropic layer that acts as a C-plate and a second optical anisotropic layer that includes a birefringent film formed by depositing an inorganic material, wherein the birefringent film included in the second optical anisotropic layer is fabricated using specific processes.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.