Digtal-to-analog conversion circuit and method thereof, and display apparatus
US10236904B1 · kind B1 · utility
Assignee
Inventors
Key dates
| Filing date | May 23, 2018 |
| Grant date | Mar 19, 2019 |
| Priority date | — |
| Expiry date | May 23, 2038 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/028
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Embodiments of the present application provide a digital-to-analog conversion circuit, a method thereof and a display apparatus. The digital-to-analog conversion circuit comprises a voltage dividing sub-circuit, having 2m of voltage dividing signal terminals and 2n-m−1 of sub-voltage dividing signal terminals; a first voltage selecting sub-circuit, configured to receive the first bit to the (n−m)th bit of the digital signal, and convert it into a first analog signal; a second voltage selecting sub-circuit, configured to receive the (n-m+1)th bit to the nth bit of the digital signal and to convert it into a second analog signal; and a buffering sub-circuit, configured to generate an analog signal based on the first analog signal, the second analog signal and the signal from the ith voltage dividing signal terminal and to output the analog signal to an analog signal outputting terminal of the digital-to-analog conversion circuit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.