Digital to analog conversion module, data drive circuit and liquid crystal display
US9978331B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Feb 25, 2016 |
| Grant date | May 22, 2018 |
| Priority date | — |
| Expiry date | Nov 12, 2036 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2310/027
- WIPO fieldBasic communication processes
- WIPO sectorElectrical engineering
Abstract
The present invention discloses a digital to analog conversion module, a data drive circuit and a liquid crystal display, wherein the digital to analog conversion module can comprise 2N−1 sub circuits and 2N−1−1 first divider resistors, and each sub circuit comprises a second divider resistor, a first switch circuit and a second switch circuit, wherein the first switch circuit and the second switch circuit are respectively coupled to two ends of the second divider resistor; the first switch circuit comprises N first switch units coupled in series, and the second switch circuit comprises a second switch unit and at least one first switch unit coupled in series; according to a preset order, a control end of the second switch unit is coupled to a connection node of a N−1th and a Nth first switch units; an output end of the second switch unit is coupled to the first switch unit.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.