Mobile terminal and display panel driver
US9541981B2 · kind B2 · utility
Assignee
Inventors
Key dates
| Filing date | Apr 22, 2015 |
| Grant date | Jan 10, 2017 |
| Priority date | — |
| Expiry date | Aug 5, 2035 |
Classification
- Technology area (CPC G)Physics
- CPC primaryG09G2330/04
- WIPO fieldAudio-visual technology
- WIPO sectorElectrical engineering
Abstract
A power circuit section generates a first logic power supply voltage and an analog power supply voltage to supply to a first power supply line and a second power supply line, respectively. A regulator steps the first logic power supply voltage down to generate a second logic power supply voltage and supplies the second logic power supply voltage to a third power supply line. A logic circuit controls A source line driving section and A gate line driving section in response to a decrease of a voltage of the first power supply line so that the charge stored in the display panel is discharged. A charge transporting path is configured to transport the charge from the second power supply line to a third power supply line in response to the decrease of the voltage of the first power supply line.
Source: USPTO / EPO open patent data. Objective bibliographic and citation counts.