Non-linear gamma compensation current mode digital-analog convertor and display device including the same
US10044366B2 · kind B2 · utility
Assignees
Inventors
Key dates
| Filing date | Mar 18, 2014 |
| Grant date | Aug 7, 2018 |
| Priority date | — |
| Expiry date | Mar 31, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2320/0673
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A non-linear gamma compensation current mode digital-analog converter includes: a first digital-analog converter block configured to: receive a digital signal, a first reference voltage, and a gamma adjustment voltage, and provide a reference current to a ground, wherein a first current flowing to a first current output terminal is determined according to the digital signal and the gamma adjustment voltage; and a second digital-analog converter block configured to: receive the digital signal, a second reference voltage, and a ground voltage, and provide the first current to the first digital-analog converter, wherein a second current flowing to a second current output terminal is determined according to the digital signal and the first current.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.