Driving apparatus of display device
US8493375B2 · kind B2 · utility
Assignee
Inventor
Key dates
| Filing date | Dec 11, 2009 |
| Grant date | Jul 23, 2013 |
| Priority date | — |
| Expiry date | May 22, 2032 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/0673
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A driving apparatus for a display device includes: a reference gamma voltage generator configured to generate a reference gamma voltage according to an MTP control signal, a write control signal, and an erase control signal; and a data driver configured to convert a data signal into a data voltage corresponding to the reference gamma voltage. The reference gamma voltage generator includes: a protection unit configured to output a first voltage as a first internal voltage when the MTP control signal is at a first level, and to interrupt the output of the first voltage when the MTP control signal is at a second level; an MTP cell configured to program a bit signal by utilizing the first internal voltage and a second internal voltage according to the write control signal and erase control signal; and a gamma register configured to determine the reference gamma voltage corresponding to the bit signal.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.