Recursive photoalignment method
US10962840B2 · kind B2 · utility
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20Claims
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Key dates
| Filing date | Sep 25, 2018 |
| Grant date | Mar 30, 2021 |
| Priority date | — |
| Expiry date | Sep 25, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG02F1/13
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A photoalignment method includes photoaligning a first liquid crystal cell and using the photoaligned first liquid crystal cell as a mask in the photoalignment of a second liquid crystal cell. The method may increase spatial dynamic range or decrease pitch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.