Holographic display apparatus and method of driving the same
US9904251B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Jan 15, 2016 |
| Grant date | Feb 27, 2018 |
| Priority date | — |
| Expiry date | Jun 15, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/0223
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A holographic display apparatus includes a light source unit, a spatial light modulator, and a spatial light modulator control circuit for controlling the spatial light modulator, the spatial light modulator control circuit including a data driving circuit for providing a data voltage to a signal line, a demultiplexer circuit which includes a plurality of switching elements connected to the signal line and sequentially turned on, and transfers the data voltage to a transfer line through a turned-on switching element among the switching elements, and a first element connected between the transfer line and a data line, passing a current flowing from the transfer line to the data line, and blocking a current flowing from the data line to the transfer line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.