Beam deflector, holographic display device having the same, and method of driving the beam deflector
US10895798B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Sep 4, 2018 |
| Grant date | Jan 19, 2021 |
| Priority date | — |
| Expiry date | Nov 2, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG03H2223/18
- WIPO fieldOptics
- WIPO sectorInstruments
Abstract
A beam deflector, a holographic display device including the beam deflector, and a method of driving the beam deflector are provided. The beam deflector includes first electrodes spaced apart from each other on a first substrate, second electrodes spaced apart from each other on a second substrate, a liquid crystal layer between the first substrate and the second substrate, and a controller configured to cause active prisms to be formed in the liquid crystal layer and to form a floating zone by turning off a voltage of at least one of the first electrode and the second electrode disposed between adjacent ones of the active prisms.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.