Display driving apparatus and method capable of supplying flexible porch signal in blank period
US11501730B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Oct 25, 2021 |
| Grant date | Nov 15, 2022 |
| Priority date | — |
| Expiry date | Oct 25, 2041 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2310/08
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
Disclosed is a display driving apparatus configured to provide a signal to a display panel, including an output buffer unit configured to output the source signal to the display panel for the active period and output a porch signal to the display panel for the blank period, and a low dropout (LDO) unit configured to supply the porch signal to the output buffer unit, wherein the output buffer unit includes a buffer configured to output the source signal or the porch signal to the display panel, a first switch configured to switch a connection between the LDO unit and an input line of the buffer, and a second switch configured to switch a connection between the LDO unit and an output line of the buffer, and the buffer is turned on or off according to a switching state of each of the first switch and the second switch.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.